In bulk material handling industries, like steel mill, cement plant, thermal power plant, mining etc ,different kinds of chutes can be found for conveying coal,cement,alumina,sinter dust and other aggregate materials from one transport unit to another.
1. Chute Definition
Chutes are flat plates, having relatively smooth transferring surface, arranged at different angles to transfer or guide materials along the chute under force of gravity. Many types of chutes exist,According to the force of the ore particles, they can be divided into gravity chutes and centrifugal chutes, If classified by the selected particle size,they can be divided into coarse chutes, ore chutes and slime chutes.
2. Chute Design Consideration
It is important that a chute is designed correctly to ensure the efficient transfer of bulk solids without spillage and blockages and with minimum chute and belt wear. The importance is accentuated with a trend towards higher conveying speeds and ever increasing throughputs. Some common defects in the use of chutes, such as poor material flow, short service life, too much noise, large impact on downstream equipment, leakage, etc. need to be considered during chute structural design and material selection.
3. Chute Lining consideration
Chute liner material choice is an essential step during design consideration. reasons for install chute lining as follows:
3.1.1 To protect the chute structure from abrasion,erosion, temperature imposed by the product.
3.1.2 To protect the product from damage by the chute due to chemical reaction or mechanical damage by the chute.
3.1.3 To increase or reduce friction or otherwise change the velocity of the product.
3.1.4 To process the product during transit along the chute.
4. Chute Lining Selection principle
The selection guide for lining solutions is divided into three sections: wear improvements, flow improvements and noise reduction. Your choice principle will be based on processing conditions, material ,size, shape, drop height, volume, angle of impact,temperature etc.
5. Different Materials for Chute Liner
5.1 Rubber Chute Liner : This is most common material as wear resistant lining,Which may be adhered in sheets or be vulcanized. It is better choice to absorbing noise during conveying materials, but not fit for small particle materials in wet working environment or materials with high temperature .
5.2 Hard Metal Lining of Chutes : Another wear protective linings used popularly . Which include Manganese steel, high chrome steel Chrome molybdenum steels etc. They are characterized by good impact resistance, high temperature resistance, corrosion & wear resistance and easily to be Cutted , bent or crimped, welded and punched.but it is also a heavy and costly choice .
5.3 Alumina Ceramic Chute Liner : ceramic liner tiles have wide types for choice, like alumina ceramic plain tile , welding tile, rubber ceramic wear liner etc. Which kind of applied ceramic liner depends on different working environment including temperature, impact strength etc.
5.3.1 Alumina Plain Tile : it is installed by epoxy resin directly which provides a high shear strength and good resistance to chemical or moisture attack and ageing. Standard sizes or ceramic cutting tiles can be supplied by China ceramic manufacturer like Chemshun Ceramics.
5.3.2 Ceramic Welding Tile : It provides excellent abrasion and impact resistance for industrial friction equipment. Is installed by epoxy resin and welding double ways. best wear resistant choice for dynamic operation equipment.
5.3.3 Rubber Backed Ceramic Wear Plate : a combination of wear resistant alumina ceramics vulcanized in resilient rubber sheet. Which has super wear resistance and impact resistance property from rubber and ceramics. Ceramic shapes can be vulcanized in current market mostly including ceramic cylinder, alumina hexagonal tile, square mosaic tile , ZTA ceramic tile etc .typical ceramic supplier factory like Chemshun Ceramics Company. Rubber ceramic wear liner is mainly installed by welding bolt. good choice as mining chute liner.
6.Maintenance & Replacement of Chute Liner
Chute linings are subject to wear. Sooner or later the liner material will have to be replaced.different chute wear liner materials have different replacement & maintenance ways. Generally good access with enough room for maintenance man should be carefully considered when chute design.
7.How to Install Ceramic Chute Liner
Step 1: Prepare special designed alumina chute tiles and epoxy resin and other tools
Step 2：Install alumina tiles with epoxy resin adhesive in the inner wall of chute
Step 3: Remove the extra epoxy resin with tools and lightly hit the ceramic liner tile with hammer for air removal
There are differences in performance between chemshun wear resistant ceramic liner tile with 92% aluminum content and 95% aluminum content, as follows: * Hardness. Wear-resistant ceramic sheets with 95% aluminum content have higher hardness than 92%, which improves their wear resistance to a certain extent. Therefore, the degree of hardness may affect the durability of wear-resistant ceramic sheets. , * Brittleness and degree of dome. In addition, wear-resistant ceramic sheets with 92% aluminum content are relatively tough, while wear-resistant ceramic sheets with 95% aluminum content may be more brittle and may crack during bending or use. This may affect its performance in practical applications. * Price. Wear-resistant ceramic sheets with 95% aluminum content usually have higher production costs due to their higher aluminum content and hardness, which affects their market prices. In general, these two types of chemshun wear-resistant ceramic plate have their own unique charact...
Rio Tinto's incoming chief executive Jean-Sebastien Jacques has put paid to suggestions his appointment represents a shift to expansion at the mining giant, after a series of ill-fated acquisitions and the worst commodities rout in decades resulted in three years of aggressive cost cutting. Mr Jacques, who was anointed as Rio's next chief executive on Friday and will replace incumbent Sam Walsh in July, has been in charge of the London-based miner's copper and coal division, where he caught the board's eye by selling $US1.8 billion ($2.35 billion) in assets and generating cost reductions of almost $US2 billion. Chemshun Ceramics as Chinese wear resistant ceramic supplier , mainly serve global mining companines with 92% 95% Al2O3 alumina ceramic linings, in order to avoid chemical attack, corrosion attack, mechanical attack or a combination of these three modes, mining companies in aggressive industrial use alumina ceramic liner //for chute , hopper,bun...
Common methods for processing alumina wear resistant ceramics shared by Chemshun Ceramics factory , welcome to check Dry grinding: This method uses grinding tools to cut Chemshun alumina ceramics , but attention should be paid to the control of grinding pressure and temperature to avoid surface cracks or breakage. Wet grinding: Coolant is used during the grinding process to reduce the temperature, play a lubricating role, and reduce the impact of grinding force on ceramics. Ultrasonic machining: Cutting using ultrasonic vibration can effectively reduce the impact of grinding force on ceramics, but special ultrasonic machining equipment is required1. Laser machining: Cutting or drilling using laser beams has the advantages of high precision and no pollution, but professional laser machining equipment is required. Cutting: Use high-speed cutting technology to process the blank into the desired shape. Grinding and drilling: Use grinders, wire cutting and other equipment for fi...
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