The specification of refractory bricks

Refractory firebrick is aluminum silicate refractory material, with A12O3 and SiO2 as its basic chemical composition, according to A12O3 and SiO2 content ratio, this type of refractory material is divided into three kinds: semi-silica brick (A12O3 15 ~ 30%), Clay brick (A12O3 30 ~ 48%), high alumina brick (A12O3> 48%). Clay brick is one of the largest and most widely used, the output of the total output of refractory materials of about 60 to 70%.
Refractory brick raw material is calcined after A12O3 + TiO2 content of not less than 30% of the china refractory brick, alkali and alkaline earth metal oxides and iron oxide content should be as little as possible, generally about 5-7%. Fire resistance of refractory clay must be no less than 1580 ℃. Clay raw materials after calcination, broken, ingredients (adding soft clay as a binder), pressing molding, drying, firing and other processes, you can get finished refractory bricks.
Refractory firebrick is weak acid refractory. As the chemical composition of the larger fluctuations in the production methods are different, the difference in firing temperature, so that the nature of clay brick changes. Ordinary clay brick according to the composition of the content of Al2O3 is divided into (NZ) a 40, (NZ) a 35, (NZ) a 30 three grades. The refractory degree of clay brick is above 1600 ℃, but the starting softening temperature is very low, only 1250 ~ 1300 ℃, and the load softening start temperature and the final temperature (fflJ40% deformation temperature) interval is large, this interval is about 200 ~ 250 ℃. Clay brick is very important in this nature, it makes the clay brick, although not too high refractoriness, but still can be applied to many high-temperature thermal equipment. Clay brick quenching and cooling is better, at 850 ℃ water cooling up to 10 to 25 times. Clay brick can resist weak acid slag erosion, little resistance to alkaline slag, increase the content of Al2O3, can improve the ability of alkali-resistant slag.
The refractory firebrick is rich in raw materials, the manufacturing process is simple and the cost is the lowest, and it is widely used in the furnace, flue, chimney, waste heat utilization device and burner of various heating furnaces and heat treatment furnaces. Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
Article Source: fire brick for sale
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

The specification of mullite castable

Mullite castable is to high-quality porous mullite aggregate as refractory raw materials, plus fine powder and additives into the mixture. Mullite aggregate critical particle size of 12mm; long-term use of the temperature of 1350 degrees. Changxing refractory also offer mullite insulating firebrick and  other refractory products.
Features:
Mullite pouring material using high temperature, can be directly exposed to the flame for the use of refractories working lining to achieve high temperature energy saving; unit capacity light weight, structural weight to reduce 40 ~ 60%, to eliminate the roof hanging fire brick fracture; low thermal conductivity, to the stone aggregate ingredients, low thermal conductivity, good insulation properties; can quickly oven, shorten the oven duration, significant economic benefits;
Applications:
Mullite Castable for the petrochemical industry tubular heating furnace, light diesel oil, ethane cracking furnace lining, atmospheric pressure reducing furnace, sulfur recovery device, steam boiler, tortoise net insulation layer, two barrels and pipe insulation single Layer, other industrial furnace door, see the fire hole, observation hole door lining and so on.
We are mainly producing high alumina bricks, high alumina refractory fire brick, alkali resistant bricks, refractory bricks, clay tiles, insulation bricks, light high alumina bricks, low creep high alumina brick, high aluminum wear Brick, high aluminum lightweight insulation brick, clay insulation brick, if you have any need please call our service hotline.
Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
Article Source: fire brick for sale
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Physical and chemical index of Low creep high alumina brick

Low creep high alumina brick is a special bauxite clinker as the main raw material, supplemented by special additives, high pressure molding, high temperature firing, with thermal storage capacity, small creep rate, etc., suitable for small and medium blast furnace Matching hot air stove.
Creep high alumina bricks physical and chemical indicators
Specifications DRL-135 DRL-145 DRL-150 DRL-165 DRL-155 DRL-150
Al2O3,% ≥ 70 75 80 65 55 48
Refractoriness, ℃ ≥ 1790 1790 1790 1790 1770 1750
Apparent porosity,% ≤ 20 20 19 24 24 24
Normal temperature compressive strength, MPa ≥ 65 70 80 49 44.1 39.2
The rate of change of the burner,% ≥ ± 0.1 ± 0.1 ± 0.1 + 0.1 ~ -0.4 + 0.1 ~ -0.4 + 0.1 ~ -0.4
1450 ℃ x2h 1500 ℃ x2h 1450 ℃ x2h
0.2MPa load softening start temperature, ℃ ≥ 1500 1550 1650 1500 1470 1420
High temperature creep rate,% ≤ 0.6
1350 ° C × 50 h 0.6 0.7
1450 ℃ × 50h 1500 ℃ × 50h
We are mainly producing high alumina bricks, high alumina refractory fire brick, alkali resistant bricks, refractory bricks, clay tiles, insulation bricks, light high alumina bricks, low creep high alumina brick, high aluminum wear Brick, high aluminum lightweight insulation brick, clay insulation brick, if you have any need please call our service hotline.
Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
Article Source: high alumina brick
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Main factors affecting using life of blast furnace bottom and hearth

1.Design structure: Resonable design structure (salamander depth, material selection and arrangement) is the foundation of safety and long service life of blast furnace bottom and hearth.
2.Refractory raw material quality: Refractory material quality is the promise of safety and long service life of furnace bottom and hearth.The higher the price, the better the quality of the merchandise.In this respect, we have many lessons.
3.Construction quality:The quality of construction and material quality are equally important(Flatness of flat steel and screed、Gap and integrity of carbon brick、The density of ramming material and so on）.
4.Operation level：Improper operation will cause the hearth to be inactive , coke duichen sitting dead,the circulation of molten iron in hearth is aggravated. All these will affect the service life of furnace hearth.
5.Monitoring means: Only through modern monitoring methods, timely monitoring of the erosion of the hearth, the trend of development, to know the situation, and know why, so that we can nip in the bud.
There have many kinds of refractory products in our factory. What's more, there have many refractory news and refractory information in our website. Welcome to view our website and contact us anytime.
Article Source:Refractory castable material inspection before construction
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
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Refractory castable material inspection before construction

Construction of refractory casting material before should strictly check the following:
1. Casting material construction is made of steel or hard wood templates are available. The template must be of adequate strength, good rigidity, not out of shape, do not shift, no leakage of slurry. Steel template to mold release agent. Wood template to brush waterproof paint. The repeated use of the template to cleaning, painting can be used.
2. Water, pouring refractory raw material should be strictly according to the manual control, shall not exceed the limit. Under the premise of ensuring the construction performance, the amount of water should be less than.
3. Castable refractory mixing time should not less than 5 minutes. The operation to the use of forced mixer. Mixing should first dry mix, then add 80% dosage of water mixing, and then depending on the extent of wet and dry, gently stir until the remaining water, obtaining suitable work consistency so far. Stirring casting material different should first mixer clean.
4. Pouring refractory material must use the whole barrel bag full of. Stirring casting refractory material generally good must be used within 30 minutes. Drying at high temperature working environment should be appropriate to shorten this time. Already first castable coagulation even caking not poured into the mould, nor of mixing water reuse.
5. If the project inspection unqualified should deal with qualified rear can construction. Expired materials shall not be used. Construction of castable to ensure that no power outages not interrupted construction.
Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, refractory fire brick, ladle & tundish nozzle, ceramic fiber with high quality for you.There have many kinds of refractory products in our factory. What's more, there also have magnesia carbon brick and other magnesium products products in our factory. Welcome to view our website and contact us anytime.
Article Source: Refractory castable material inspection before construction
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Changxing Refractory begins to cooperate with the biggest steel group in central Asia

The biggest steel group in Central Asia begins to establish cooperation relationship with Changxing Refractory after analysis and test to our whole refractory solution and sample.
It is another important step for us to develop the global refractory market. Changxing Refractory will keep moving on the road of supplying considerate services and high quality refractories.
Changxing Refractory is a Chinese leading refractory and oil fracturing proppant manufacturer & supplier with a wide range industries in high temperature field. From a refractory bricks manufacturing factory, Changxing has become a professional manufacturer with various refractory materials and oil fracturing proppant both in domestic and international market during 30+ years, whose customers covers North America, Middle East, Asia, Africa, etc.
There have many refractory news and refractory products information on web. You can read more refractory products and know more refractory materials information.Because our website has many kinds of refractory news and industry news. what's more ,you can know more kinds of refractory information from our website. Chinafirebrick provides refractory products, Magnesia Carbon Brick, castable and mortar, fire brick, ladle and tundish nozzle, ceramic fiber with high quality for you.
Article Source: Changxing Refractory begins to cooperate with the biggest steel group in central Asia
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Changxing Refractory opens the refractory market in Germany

After the past several weeks' negotiation and sollution optimization, both sides Changxing Refractory and German client are very satisfied with the final cooperative agreements. Based on the win-win cooperation, the first order had been placed and will be finished in the next several days.
It is a good beginning for Changxing Refractory to get foot in Germany with high quality and competitive price refractories. Changxing Refractory will always provide clients with excellent pre-sale and after-sale service and high quality refractory products.
Changxing Refractory is a Chinese leading refractory and oil fracturing proppant manufacturer & supplier with a wide range industries in high temperature field . From a refractory brick China manufacturing factory, Changxing has become a professional manufacturer with various refractory materials and oil fracturing proppant both in domestic and international market during 30+ years, whose customers covers North America, Middle East, Asia, Africa, etc.
Changxing refractory has a production line, which is base on oil & gas applied ceramic proppant, and also with 3 factories focusing on all kinds of refractory materials used for iron & steel casting, cement, glass petrochemical and ceramics industries. With abundant sources and professional techniques, Changxing Refractory would like to build a reliable and efficient platform for customers all over the world.
Article Source:Changxing Refractory opens the refractory market in Germany
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

The process of ladle cold maintenance

The process flow of cold maintenance of ladle is: The hot maintenance ladle has to be stopped → Move the ladle to repairing area → Remove the working layer → Mansory → Move the ladle to sintering platform. Please pay attention to the following matters during this process:

1.Check the nominal dimensions of all the shaped refractories to see if they are up to standard.

2.When removing the working layer, make sure there is no steel remaining. Record the damage condition of each area, when the thickness of any area of the working layer is less than 70mm, the working layer should be stopped using.

3.During mansory, check to see if the wellblock is flat, make sure the remaining mortar of permanent layer is cleaned out or repaired before constructing the working layer, the gap between each two fire bricks should be less than 1mm, make sure the last brick of each circle is bigger than half brick.

4.Avoid being hurt by crane, objects, high temperature, etc.

There have many kinds of refractory products in our factory. What's more, there have many refractory news and refractory information in our website. Welcome to view our website and contact us anytime.

Article Source: The process of ladle cold maintenance
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd?
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Construction method of refractory casting material

Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.

Castable lining construction
1, refractory castable construction
2, castable stir
Mixing time should be no less than 5 minutes. Operation to use a forced mixer, stirring should first dry mixing, then add 80% solvent stirring, and then depending on the degree of wet and dry construction and specific parts of the request, and then slowly add the remaining solvent until the appropriate working consistency until. In ensuring the construction performance of the premise, the amount of solvent should be less good.

Refractory castables should be used in the whole bag, stir well castable must be used within 30 minutes. In the high temperature drying of the operating environment but also to shorten the time. Has been initial coagulation or agglomeration of refractory castables shall not be used, do not add solvent stirring and then use.
3, vibrating
Refractory castable pouring into the template should be immediately vibrated with a vibrator, each layer height is less than 300 mm, vibration spacing to 2500mm is appropriate.
Vibration, try to avoid touching the anchor, shall not damage the insulation layer, not in the same position for a long time and re-vibration. Casting surface after the slurry should be slowly out of the vibrator to avoid casting material and the emergence of isolated phenomenon. The cast body after pouring can no longer be pressed and shocked before solidification.
4, pouring and expansion joints
Large area construction pouring to block construction. Each casting area to 1.5m2 is appropriate (with a mixing amount of synchronization.) Expansion joints required to stay (usually in the pouring time to consider), shall not be missed. In the kiln, the expansion joints in the decomposition furnace are located in the axial ring, not less than 4, to aluminum silicate fiber felt as the material.
5, maintenance and mold release inspection
After the surface of the castable material is dried, it is necessary to carry out the necessary maintenance according to the construction and maintenance requirements, especially the castable for water conservation, and sprinkle it regularly to keep the surface moist. After the final pouring of refractory raw material can be removed side mold to continue to sprinkler conservation, but the load-bearing template to be the strength of 70% before stripping.
After the removal of the template should be timely on the casting inspection, found honeycomb, peeling and empty quality problems such as timely processing and repair. When the problem is serious, the defect should be chiseled to expose the anchor, and then use the homogeneous pound to fill the material to continue conservation. It is forbidden to cover up the problem with mud.
6, composite lining construction
On the fire-resistant insulation composite lining to be layered construction, is strictly prohibited mixed layer of slurry construction, insulation materials (such as silicon calcium board, silicon aluminum, asbestos or slag cotton, etc.) should be sprayed with waterproof moisture-proof refractory castable. There have many refractory news and refractory products information on web. You can read more refractory products and know more refractory materials information. Because our website has many kinds of refractory news and industry news. what's more ,you can know more kinds of refractory information from our website.
Article Source: Refractory raw materials
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Construction regulations of unshaped casting materials

Refractory Casting materials manufacturers show that: because of the many types of castables, most of which customers on the infinitely castable in this area of knowledge is relatively lacking, in order to improve the construction efficiency and to avoid errors. There have many refractory news and refractory products information on web. You can read more refractory products and know more refractory materials information. Because our website has many kinds of refractory news and industry news. what's more ,you can know more kinds of refractory information from our website.

First, the inspection before construction

Inspection before construction should be carried out strictly, including the following
1, clear the refractory castable equipment, the appearance of the structure and clean
2, the construction equipment of the intact, vibrating tools must have a good use of pieces
3, the process of leaving the hole
4, anchor type, size, layout and welding quality, metal anchors must be done for expansion compensation
5, around the refractory fire brick insulation layer to do a good job of cast water loss (glue) preventive measures
6, the packaging of the castable and the date of the factory, and pre-test to check whether the failure
7, pouring procedures
8, the implementation of the construction process formula
9, the construction of water quality must meet the quality of drinking water

The above inspection should be handled after the failure to be qualified before the construction, expired failure of the refractory raw material shall not be used.
Second, the construction template.

Available from steel or hardwood (bamboo). Template to have sufficient strength, good rigidity, do not take shape, do not shift, do not leak pulp. Steel mold to use mold, wood template to brush waterproof paint. Reuse of wood before cleaning and then use. Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.

Article Source: Refractory raw materials
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

European electric fused magnesia prices rose by more than 50%

The price of fused magnesia in Europe has exceeded $1000 per ton this week. As China's product prices continue to rise and supplies are scarce, international demand for related products is also increasing.There have many refractory news and refractory products information on web. You can read more refractory products and know more refractory materials information. Because our website has many kinds of refractory news and industry news. Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
At the same time, the European magnesia market as much as possible to prevent the rapid rise in prices, until the second quarter of this year, China's fused magnesia basically stopped, so that the European fused magnesia prices doubled now.
According to the British industrial minerals magazine this week the latest quotation shows Europe fused magnesia international trading price range, FOB Europe price was 1000-1200 dollars per ton. Before the chain FOB Europe's price range of $640-750 per ton, the price rose 58%.

In fact, in June of this year, the international price of European magnesia has been from the beginning of the $480-650 per ton, rose to $640-750 per tonne. This is mainly due to insufficient supply of spot fused magnesia. A European manufacturer said, our basic fused magnesia has been sold out in the other months. One vendor said, we are only small quantities of goods provided. Third producers said, we are unable to provide the goods beyond the contract at present. Nevertheless, the buyer was willing to buy at the price.

Production in Europe has been produced and settled on the basis of the annual requirements of the customer, which greatly reduces the surplus in the stock market, but the situation in China has made market supply worse.

China and interrupt the production due to environmental inspection, in the past few months, cut or stop production enterprises continue to increase productivity, and slow recovery. In addition because the explosive restrictions lead to refractoryraw materials to mining, is also facing the shortage, it also makes some factories unable to normal production.

With the development of time, the market becomes very obvious, customers find it difficult to find the right products from China, they will search other countries.
As early as July this year, a number of European suppliers indicated that the order was full, but the inquiry continued, and many suppliers were fully operational, but they were still unable to meet the shortfall in China.

The accumulation of materials are not only fused magnesia, and heavy fire and light burned magnesia, but is mainly native to Europe. It also makes the customer in Europe in the first half of this year than the price of the China stable lot. Different grades of calcined tight supply, but the light burned magnesia was better at present. The shortage is fused magnesia supply.

Prices of other European magnesia have remained essentially unchanged:
Light burned magnesia, agricultural, CIF European port, 240-300 euros per ton;
Fused magnesia, Electrotechnical grade, ex factory price US $1500-2450 per ton;
Magnesite raw material, silica content of not more than 3.5%, FOB, Eastern Mediterranean, 65-80 euros per ton;

Prices in North America are basically stable:
Fused magnesia, electrical grade, ex factory price US $1700-2500 per ton.
Fused magnesia, refractory grade, FOB us, $900-1400 per ton.

There have many kinds of refractory products in our factory. What's more, there have magnesia carbon brick and other magnesium products products in our factory. Welcome to view our website and contact us anytime.
Article Source:European electric fused magnesia prices rose by more than 50%
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

Refractory bricks used for different parts of blast furnace

Blast furnace is the main equipment for ironmaking, and clay brick is the earliest furnace lining material used in blast furnace. Blast furnace has the advantages of large output, high productivity and low cost, which is unmatched by other ironmaking methods.

The refractory materials and refractory bricks used in diffreent parts of blast furnace are as follows.

(1) Furnace hearth
One of the main functions of furnace hearth is to hold molten iron safely. The hearth refractory material must be stable enough when the temperature is highter than 1500 ℃. So for furnace hearth bottom, we need to choose carbon brick which has the advantages of anti-molten iron penetration, good melting, alkali resistance erosion, good thermal conductivity. And we can use small carbon brick to take the place of large carbon block, or construct ceramic rings on the carbon bricks.

(2)Tuyere zone and bosh
Temperature in tuyere area and furnace bosh is the highest in the blast furnace. The hot gas temperature produced in front of the tuyere rises at a high speed, the temperature can reach 1600 ℃ and higher. When 1450 ~ 1550 ℃molten iron and slag flow furnace hearth and finally flow to the furnace bosh, there will be a variety of metallurgical reactions happen in this area violently. Those two areas need refractory materials with characteristics of good resistance to high temperature and slag erosion, good alkali resistance, anti carbon dioxide and anti water oxidation. China refractory bricks we can use in this area are corundum brick, alumina carbon brick, hot pressed semi-graphite carbon brick, SiC brick and so on.

(3)Furnace bosh and lower furnace stack
The lower furnace stack is the position of root cohesive zone where the temperature is quite high, but slag layer or stable slag layer self protection can not be formed. This are need ds refractory materials which can bear severe temperature fluctuations, and also has advantages of alkali metal erosion, zinc erosion, carbon monoxide erosion, etc. What’s more, refractory materials used in furnace bosh and lower furnace stack should have good thermal shock stability, high temperature resistance, good alkali resistance and other properties. Refractory brick china can be used in these two areas are high alumina brick, corundum brick, alumina carbon brick, SiC brick and so on.

(4)The middle and upper part of furnace stack
The furnace stack middle part’s temperature is lower than that of furnace stack lower part. People genarally use high alumina brick, corundum brick and silicon carbide in furnace stack middle part. The temperature in furnace stack upper part is relatively lower than other parts, and it mainly affected by the wear and impact of the burden, alkali metal, zinc and carbon deposition erosion. This area requires refractory material has advantages of good wear resistance, good alkali resistance and good thermal shock stability. Refractory bricks can be used in this area are clay brick, high alumina brick, sillimanite brick, corundum brick. There is a trend that cooling walls are taking the place of refractory bricks used in blast furnace.

Article Source: Refractory bricks used for different parts of blast furnace
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

The Process flow of refractory castable

In the production of high-grade refractory castables, it is necessary to use premixed powder. Otherwise, a small amount of admixture, ultrafine powder and fiber and other externally, difficult to mix, resulting in its function is not stable, affecting the construction and use. After the preparation of various refractory raw materials, respectively, into the silo stand. The silo is divided into fixed and mobile two. Uncertain silos are overhead, all kinds of china refractory materials through the promotion machine was promoted to the bottom of the bunker machine, and then sent to the respective silo. There are electronic scales and furnishings under the silo, according to the production of refractory castable tacit than to carry out ingredients. Then, will be equipped with a good investment in the mandatory mixing machine mixing, mixing time is about 5min.

Mixed with a good refractory castable mixing material, from the mixing device into the sub-packaging into the sub-packaging equipment, the bottom of the facility with electronic scales, after weighing after bagging or packing, and finally sealed with a sealed bag or Cloth paper sealing mouth. And then shipped to the cargo hold, according to the name and grade were placed. The production line is three-dimensional homework, plant Xuan open, more facilities, a higher degree of automation, material quality is more stable; mobile silo placed in the plant floor, the material with a feeder and belt conveyor to the top of the silo, And sub-installed into the silo, can also be used crane loading.

The bottom of the silo is equipped with a scale or electronic scale ingredient, with a good material, with a belt machine or trolley into the hopper hopper, and then carry out the mixing, the remaining process with the former. The production line level of homework, covering more facilities, less active, but also to ensure the quality of materials. Refractory castable finished products, heavy materials, the quality of each bag is generally 30 ~ 50kg, light material per bag was 20 ~ 30kg, the error of ± 0.2kg. In the production of refractory castables, reference to steel or fluid binder, can be dispensed or shipped directly to the user, but must specify the guarantee period and the amount of clay and low iron and steel series of refractory castables, the steel is also divided Installed.

If the steel out of date, easy to swap. Such as during the 3-month retention period, should also be mixed. In the refractory castable ingredients before, should be subject to refractory materials, steel and other materials and other materials, to carry out chemical analysis and physical function of the inspection; broken after the fire-resistant aggregate and fine grinding of refractory powder, should carry out chemical Analysis, screening and precision inspection. Refractory castables produced by the tacit ratio, whenever the raw materials and production processes and other conditions have changed, the need to meet the technical requirements of the experiment before they can be produced; new varieties of refractory castable production, the tacit ratio should also be re-test; When the refractory castable is produced, it should be inspected for its grain gradation. If it does not meet the technical requirements, it should be controlled in time. The finished product of each batch of refractory castable shall be measured according to the technical requirements and the performance measures shall be carried out according to the warranty and construction skill requirements , Made to the user.

Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.

Article Source: refractory products
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
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Technological process of refractory castable

The production of refractory castables, it is important to say that the process of production lines and facilities. Refractory ramming material, refractory spray paint, refractory repair and refractory coating and other materials, and its production and refractory castable is basically the same. Refractory castable production process, some of the raw materials without crushing, can be used directly. For example, aluminum hollow ball, ceramsite, expansion of the perlite and industrial aluminum and so on. According to the production scale and raw material varieties and characteristics of the conditions, the selection of important facilities: crushing - jaw crusher there are three categories, the model to the proportion of the feed port, an important 250mm × 400mm and 600 mm × 400mm, production capacity of 5 ~ 20t / h. Used for large pieces of coarse crushing.
Crushing - refers to the refractory raw material after crushing and crushing, but also the preparation of pellets. The facilities are cone crusher, roller crusher and dry mill. Sieve - the particles will be crushed material according to the size of the grain composition of different particles. The facilities are fixed slanting sieve and electromagnetic picking sieve and so on. The former screening efficiency of 70% before and after the latter is generally more than 90%. Fine grinding - refers to the production of refractory powder. The main facilities are ball mill, tube mill and sensory mill, etc . premix - refers to the additive, admixture, binder and fine powder and all the powder or a mixture of several kinds of powder, so called premixed powder. The facilities are double helix cone agitator and so on. Ingredients are generally used in electronic, weighing standards; stirrer with a forced agitator, mixing material can be input sub-installed and then sub-installed, but also from the extruder at the exit directly packed into bags; In addition, there are vertical Promotion machines, belt conveyors and equipment vehicles and other facilities.
The production of refractory castables, the production of refractory aggregates and powder, soft clay and other raw materials, and firing the same as the china refractory brick, not the same as the refractory aggregate critical particle size, grading, so the need for sieve Points, promotion and other facilities, storage silos are also more. At the same time, the preparation of premixed powder, which is a special process.
Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, fire brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
Article Source: Refractory Fire Bricks
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/