Rotary kiln cement is widely used in metallurgy, chemical industry, building refractory materials, sanitation and other industries. The rotary kiln cement is composed of a cylinder body, a supporting device, a wheel bearing support device, a transmission device, an active kiln head, a kiln tail sealing device, a coal injection pipe device and the like. The kiln cement body of the rotary kiln is inclined to the horizontal level. The whole kiln body is supported by the supporting wheel device and has a gear wheel device for controlling the kiln body to move up and down. In addition to the main drive, the transmission system is also set when the main power supply is interrupted. The auxiliary transmission device that can still rotate the kiln body to prevent bending deformation of the kiln body, the kiln head and the kiln tail sealing device adopt advanced technology to ensure the reliability of the sealing. When the rotary kiln of the cement rotary kiln has a firm structure and stable operation, the quality of the kiln is high. Therefore, the quality and service life of the brick should be paid attention to when selecting the refractory brick. Rongsheng refractory factory recommends the suitable refractory brick for the customer.
Refractory Materials Cement Industry Catalogue
1. Sintered Alkaline Refractroy Materials
Zirconium Brick
Magnesia Chrome Brick
Magnesia Iron Spinel Brick
Magnesium Aluminum Spinel Brick
2.Shaped Aluminum Siliceous Refractory Materials
Silicon Brick
Silicon Red Brick
High Alumina Brick
Alkali Resistant Brick
Wear Resistant Brick
3.Unshaped Refractory Materials
Steel Fiber Refractory Castable
Low Cement Refractory Castable
Cement Free Refractory Castable
Self Flowing Refractory Castable
Ultra Low Cement Refractory Castable
Cement Industry Refractory Material Selection
Cement Rotary kiln consists of cylinder, transmission, support, retaining wheel support, kiln lining, kiln seal, kiln head and fuel unit.
1.The three air ducts and the air duct ducts of the cement klin have large changes in heat and cold, there are hot clinker particles flushing. Refractory castables are prone to looseness and spalling. Castable refractory is the most prone to wear in cement rotary kiln operation. Wear-resistant refractory castable and high alumina low cement castables can effectively solve the problem of wear.
2.The kiln head cover is the head part of the rotary kiln and the grate cooler belongs to the equipment of the rotary kiln. The two parts are used in a similar environment, so the same material refractory material can be used. Such as, high strength wear resistant castable, high strength alkali resistant castable.
3.Castables for refractories in the lower part of the kiln head cover are rebounded by the high temperature clinker from the kiln mouth. For some large cement kilns, the daily output of clinker is large, the heat load of the place is relatively high.
4.The top of the kiln cover is close to the third air duct. The dust flow is relatively serious. The wear resistance of the castable at high temperature is good, the construction of the top castable is difficult, the fluidity and early strength of the material are relatively high.
5.The bottom of the front end of the grate cooler is subjected to the rebound thermal shock of the clinker, and the working temperature is relatively high and the change is large; the short wall on both sides of the front end is subjected to the wear of the high temperature clinker passing through the kiln mouth for a long time, and also bears certain mechanical stress and thermal stress and damage.
Suggestion of refractory materials use high strength wear resistant refractroy castables with high temperature performance, strong thermal shock resistance and wear resistance.
The cyclone cone, the cyclone discharge tube, the decomposition furnace cone, and the smoke chamber are made of high strength anti skinning silicon carbide refractory castable as the inner liner. Silicon refractory castable has excellent alkali resistance, crust resistance and wear resistance.
Refractory Materials for the Firing Zone of Rotary kiln
The firing zone is an important part of the rotary kiln. The firing zone is formed by cement clinker minerals. The refractory material of the kiln is subjected to the highest temperature, and the liquid-solid phase in the kiln is staggered, which is the place where the kiln skin is formed. Magnesia chrome bricks have high refractoriness and high compressive strength &good thermal shock resistance, strong resistance to erosion, high temperature volume stability, very suitable for rotary kiln firing with kiln skin.
Refractory Materials for the Transition Zone of Rotary kiln
The transition zone is one of the firing zones of the rotary kiln clinker, which is higher than the firing temperature of the firing zone. The main reason is to maintain a certain high temperature and sufficient residence time when the clinker is transported, so the firing temperature of the firing zone is higher. Magnesia alumina spinel bricks are made from high purity magnesia and refractory brick magnesia alumina spinel and are fired at high temperature. Fire brick has excellent thermal shock stability and good resistance to alkali salt erosion. Magnesia alumina spinel refractory brick is suitable for use in the transition zone of cement kiln. What’s more,the refractory product has achieved good results.
Silica bricks are produced by high temperature firing of main raw materials such as high quality mullite and silicon carbide. Because there is no kiln skin protection, the transition zone of cement klin is easily affected by the reducing atmosphere and high heat load, threr is easily subject to material wear. In order to require a high temperature environment, the silica refractory brick can meet the above requirements. Silica brick has excellent wear resistance, good resistance to spalling and thermal shock stability, fired brick is suitable for use in the end of transition zone of cement kiln.
The main function of the refractory brick in the rotary kiln is to avoid high temperature deformation of the kiln cylinder, reduce heat loss, avoid the direct abrasion of the clinker to the cylinder during the firing process, and chemical erosion, thereby prolonging the service life of the kiln.
Refractory Materials Cement Industry Supplier in China - RS Refractroy Factroy
Rongsheng refractroy material factory provides high quality refractory bricks for the cement klin all year round. Rongsheng refractory material supplier can be supply cost-effective and quality guaranteed refractory product. If you need high quality refractory bricks, please contact us to prove how our company can meet your requirements. Rongsheng group can provide production capacity & proof, export certificate , quality certificate to confirm that Rongsheng company's refractory products and services are satisfactory to each purchaser.
