The working principle of the buried scraper conveyor, the similarities and differences between the s

The principle of buried scraper conveyor is to rely on the internal friction force and side pressure of the material, in the process of conveying the material, the pressure in the direction of movement of the scraper chain and the pushing force of the lower material to the upper material when the material is continuously fed, the synthesis of these forces is enough to overcome the external friction resistance between the material and the shell when the material is conveyed in the machine tank and the weight of the material itself. The material can form a continuous material flow to move forward regardless of horizontal conveying, inclined conveying and vertical conveying.

The buried scraper conveyor is a kind of closed continuous conveying equipment that can convey powder, small particles and small lumps of materials horizontally, inclination or vertically. The buried scraper conveyor uses the principle that the internal friction between the material particles is greater than the external friction between the material and the machine wall to make the material transported as a whole. Buried scraper conveyors utilize a lower scraper to drag the higher material layer.

When the ratio of the height of the material layer to the width of the machine groove meets certain conditions, the material flow is stable.

Features of buried scraper conveyor:

1. Compared with other types of conveyors, the buried scraper conveyor is small in size and high in efficiency.

2. The art arrangement of the buried scraper conveyor is flexible, which can be multi-point feeding, multi-point unloading, and easy to realize automatic process control.

3. The buried scraper conveyor is a closed conveying method, which can improve the operating conditions, prevent environmental pollution, and reduce the danger of dust.

4. The buried scraper conveyor is composed of a foldable closed section of the machine groove, scraper chain, driving device and tensioning device, etc., with simple structure and convenient maintenance.

The buried scraper conveyor generates lateral pressure in the transverse direction in the material, forming the internal friction of the material, which is enough to overcome the external friction and the weight of the material to form the lifting and conveying.

The working principle of the buried scraper conveyor is to use the open chute as the bearing part of coal, gangue or material, and fix the scraper on the chain (forming the scraper chain) as the traction component. When the head drive part is started, the sprocket on the drive head shaft rotates, so that the scraper chain runs in cycle, and the drive material moves along the chute until the head is unloaded. The scraper chain runs in a stepless closed-loop operation around the sprocket to complete the material conveying.

1.Sturdy construction. It can withstand external forces such as impact, collision, crushing and extrusion of coal, gangue or other materials.

2.It can meet the needs of uneven floor of the coal mining face, and can withstand vertical or horizontal bending.

3.The body is short and easy to install;

4.It can be used as the running track of the shearer.

5.It can be operated in reverse, which is convenient for dealing with bottom chain accidents.

6.It can be used as a fulcrum for the front section of the hydraulic support.

7.The structure is simple, and the material can be fed or discharged at any point of the conveying length.

8.The enclosure is hermetically sealed to prevent dust from polluting the environment when transporting materials.

9.There is no shell at the rear, and when the scraper is inserted into the stockpile, it can be transported by itself.

The scraper conveyor and the buried scraper are the same thing as the conveyor, but the scraper conveyor is fixed on the spot; The buried scraper conveyor is to make a trench under the horizontal ground and fix the scraper conveyor in the trench. Compared with the two, the buried scraper conveyor is conducive to environmental protection in the trench.

The explanation in the book is that the buried scraper conveyor is named because the material buries the scraper, and the main difference between it and the ordinary scraper conveyor is that its working environment is completely closed, only the inlet and the outlet, and the other environments are fully enclosed;

The second is that the efficiency of transporting materials is different, the ordinary one is not completely buried, and this kind of completely buried, if the amount of material is certain, then use it, the volume occupation will be smaller.

The differences between scraper conveyor and buried scraper conveyor are as follows:

1. Structural differences.

The scraper conveyor is mainly composed of an open trough, a traction chain, a scraper, a head drive sprocket and a tail tension sprocket, etc., and the buried scraper conveyor is a transportation equipment that makes the bulk material be transported according to the predetermined target with the help of the scraper chain moving in the closed shell, and the difference between the structure and the scraper conveyor is that the open trough is replaced by the trough of the closed section, and the other components are basically the same.

2. The application industry is different.

The buried scraper conveyor has a wide range of applications, and is generally used for the transportation of cement, grain, feed and other materials. Scraper conveyors are mostly used in the coal industry. It is precisely because of this sealed structure that the buried scraper conveyor rarely has dust pollution during the conveying process, improving the entire conveying environment.

3. The form of conveying is different.

The scraper conveyor is generally used for horizontal or inclined conveying, with an inclination angle of no more than 30°, while the buried scraper conveyor can make the material conveyed horizontally, obliquely or vertically, and can achieve multi-point feeding and unloading.

4. The working principle is different.

The buried scraper conveyor is a conveyor that uses the scraper chain to transport bulk materials in the sealed groove, and its working principle is similar to that of the scraper conveyor, but the difference is that the buried scraper conveyor relies more on the internal friction and side pressure of the material in the process of conveying the material to complete the transportation of the material.

Advantages of buried scraper conveyor

Compared with the two, the buried scraper conveyor is fixed in the trench, which is more conducive to environmental protection. In addition to the fixing method, the structure of the two is also different, the working environment of the buried scraper conveyor is completely sealed, as long as the inlet and the outlet, the other environments are fully enclosed.

And the efficiency of the scraper conveyor and the buried scraper conveyor to transport materials is different, the general scraper conveyor is not completely buried, and this kind of complete burial, if the amount of material is certain, then the volume occupation will be more delicate when it is used.

The buried scraper conveyor is mainly composed of a closed section of the shell, a scraper chain, a driving equipment and a tensioning device. The overall structure is simple, the volume is small, the sealing performance is good, and the installation and repair are relatively convenient; It can realize multi-point feeding and multi-point discharge.

The explanation in the book is that the buried scraper conveyor is named because the material buries the scraper, and the main difference between it and the ordinary scraper conveyor is that its working environment is completely closed, only the inlet and the outlet, and the other environments are fully enclosed; The second is that the efficiency of transporting materials is different, the ordinary one is not completely buried, and this kind of completely buried, if the amount of material is certain, then use it, the volume occupation will be smaller.

The working principle of the scraper conveyor is to fix the open chute as a bearing part of coal, gangue or materials, etc., and fix the scraper on the chain (forming a scraper chain) as a traction member. When the head transmission part is started, the sprocket on the head shaft is driven to rotate, so that the scraper chain runs in circulation and drives the material to move along the chute until it is unloaded at the head of the machine. The scraper chain bypasses the sprocket for stepless closed cycle operation to complete the conveying of materials.

The scraper conveyor is a conveyor equipment that uses a scraper fixed to the traction chain to scrape and transport bulk materials in an open trough.

Henan Yaxing Precision Forging Co., Ltd., founded in 2003, is located in the hinterland of the Central Plains, with convenient transportation, specializing in the production of various types of mining scraper conveyor scrapers, E-bolts, dumbbell pins, beams, drive sprockets, racks, chains and other dozens of mining machinery accessories.

Qingdao Shuanghu Group was founded in 68 years, is one of the earliest manufacturers engaged in rubber products and rubber conveyor belts in China, and is the largest and the first enterprise to develop and produce large inclination corrugated edge belts.

The buried scraper conveyor is a new generation of products that has been improved and designed on the basis of summarizing the user's operating experience and absorbing foreign advanced transmission chain structure. The improved equipment eliminates the traps of running chain, stuck chain, and off-chain, improves the wear resistance and sealing of the equipment, and has the advantages of lightweight, convenient maintenance, operation and repair, and long life. The structure of the buried scraper conveyor is reasonable, it can be fed at multiple points, and the moving speed of the scraper is driven by the planetary cycloid pinwheel reducer, which runs smoothly and has low noise, and is a popular conveying material system equipment for metallurgy, mining and thermal power plants.

In addition, MC and MZ buried scraper conveyors are available.

Technical parameters: Model MSR20 MSR25 MSR32 MSR40 MSR50 Groove width (mm) 200 250 320 400 500 Name bearing height (mm) 230 280 350 430 530 Maximum load height (mm) 180 230 300 360 460 scraper chain Model x348 x458 x678 x698 allowable load (kn) 98 378 605

Weight (kg m).

Speed (m s).

Rated conveying capacity (t h).

Maximum conveying distance (m) 50 40

Scraper conveyor is a kind of equipment that conveys materials in a closed rectangular section shell with the help of a moving scraper chain.

The transmission part of the scraper conveyor is mainly composed of an electric motor, a rotating shaft, a reducer, a transmission sprocket, a chain tightener, a blind shaft, a head frame, etc. The motor, reducer and head frame are arranged in parallel.

The supporting motor of the scraper conveyor is YBS-22-4 explosion-proof motor. In order to start with full load requirements, the starting torque and torque of the motor are times of the rated torque. The temperature rise of the motor is large, and it can run well under the condition of frequent starting.

The scraper conveyor adopts JS-30 type reducer, which is a triple deceleration and involute gear transmission. The total drive is. One is an arc bevel gear, the second is a cylindrical helical gear, and the second is a cylindrical spur gear.

The headframe is an integral joint. The shaft hole of the transmission sprocket is the positioning hole for installing the reducer or blind shaft. There are holes for inserting chain hooks on the upper edge of the plates on both sides of the headframe. There is a 200 and 6 26 holes on each side plate for mounting the reducer.

The chain tightening device is used to tighten the scraper chain when the scraper conveys the installation, dismantling or changing the laying length, and adjusting the tension. The chain tightening device comprises two parts of the chain hook.

Scraper conveyor.

It is a conveying machine that scrapes the material to a fixed place through a scraper. Mainly:

Sprocket. Drive wheel driven wheel, chassis chain.

Scraper. reducer and other components.