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Pulverized coal scraper conveyor

Product introduction

bury Scraper conveyor purpose
Fu type buried scraper conveyor is a horizontal scraper conveyor. The buried scraper conveyor is a kind of continuous conveying equipment for powder, small particle, small piece of bulk materials in a closed rectangular section shell with the aid of moving scraper chain. Because when conveying materials, the scraper chain is completely buried in the material, so it is called "buried scraper conveyor".
The embedded scraper conveyor has the advantages of simple structure, light weight, small volume, good sealing and convenient installation and maintenance. It can be used not only for horizontal transportation, but also for inclined and vertical transportation; it can not only be transported by single machine, but also be arranged in combination and connected in series; it can be fed and unloaded at multiple points, so the process layout is more flexible. Because the shell is closed, the working conditions can be significantly improved and the environmental pollution can be prevented. The model of our company is general-purpose buried scraper conveyor, which can be widely used in chemical industry, machinery, metallurgy, light industry, grain, medicine, transportation, electric power and other departments to transport powder, small particles and small pieces of materials.
There are the following requirements for the materials to be transported
    1. Bulk density: r = 0.2 ~ 1.8t/m3;
    2. Material temperature: T < 100 ° C;
    3. Moisture content: for general materials, it is not allowed to make the materials hard to loose after being kneaded by hand; for the increase of moisture content, the adhesiveness and caking property will be increased, and the materials can not adhere to the scraper seriously;
    4. Examples of transportable materials: pulverized coal, crushed coal, ash, carbon black, ammonium bicarbonate, pyrite powder, ammonium chloride, copper concentrate powder, aluminum oxide powder, gypsum powder, limestone powder, soda powder, urea, activated carbon, sodium chloride, calcium silicate, asbestos powder, synthetic resin, rubber powder, calcium carbide, clay, synthetic fertilizer, powder and granular pesticide, barium sulfate, ammonium sulfate, soda ash, powder It has been widely used in the fields of medicine, wheat, soybean, rice, sugar, starch, wood chips, sawdust, polyvinyl alcohol synthetic detergent, fly ash phosphate fertilizer, etc.
The general-purpose buried scraper conveyor is not suitable for conveying high-temperature, toxic, explosive and flammable, highly abrasive, corrosive, adhesive, suspended, highly mobile, hard and brittle materials that are not expected to be broken. When the materials with these characteristics need to use the embedded scraper conveyor, they can be designed as: high temperature resistant, corrosion resistant, wear-resistant, air tight and explosion-proof, which can be produced by our company.
Horizontal buried scraper conveyor can be divided into ordinary type and large inclined type. The installation angle of ordinary type is 0 ° ≤ α≤ 15 ° and that of large inclined type is 15 ° < α < 30 °
The material characteristic is the key to decide whether to use the embedded scraper conveyor
    1. The water content is usually below 10%, and less than 5% is the best;
    2. If the particle size of the material is too large, the scraper chain will be deformed, the unloading will be inconvenient, the chain will be stuck and broken;
    3. The loose density is generally between 0.2-1.8t/m3. When the conveying distance or lifting height is far less than the specified limit value, it can reach 2T / m3, and the strength of scraper chain can be checked. MZ and ml mainly use light materials;
    4. Generally, the temperature should be below 100 ° C and should not exceed 120 ° C. otherwise, the scraper chain and groove bucket may have excessive deformation. If the temperature is too high, hot material type scraper conveyor can be selected;
    The concrete introduction of buried scraper conveyor: in horizontal transportation, the material is pushed by the scraper chain in the movement direction. When the internal friction force between the material layers is greater than the external friction force between the material and the groove wall, the material moves forward with the scraper chain. When the ratio of material layer height to slot width meets certain conditions, the material flow is stable. When the temperature of the scraper is 120 ℃ and the temperature of the scraper is up to 800 ℃, the scraper will drive the material when the temperature is up to 100 ℃. The equipment has the advantages of simple structure, small volume, good sealing performance, convenient installation and maintenance; it can add more materials and discharge materials at multiple points, and the process selection and layout are more flexible; when conveying flying, toxic, high-temperature, flammable and explosive materials, it can improve the working conditions and reduce environmental pollution.
How it works
Scraper conveyor is a kind of continuous transport machinery with flexible traction mechanism. The chain wheel and the scraper chain wheel of the machine are closed, while the chain wheel and the scraper are closed. The starting motor drives the scraper chain to run continuously through the hydraulic coupling and reducer drive chain wheel to push the coal loaded in the chute to the machine head for unloading and transferring.
The types and arrangement of the components of various types of scraper conveyor are not completely the same, but the main structure and basic components are the same.  
Scraper conveyor is generally composed of head, body and tail.  
Basic structure:
    1. Head part: it is composed of head frame, sprocket assembly, coupling, reducer and motor.
    2. Tail part: tailstock, sprocket assembly, coupling, reducer, motor.  
    3. Fuselage part: middle groove, scraper chain, coal shovel plate and coal baffle.  
    4. Auxiliary device: mainly including chain tightening device, pushing device and anchor fixing device.



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