The conveyor that transports the bulk material in the tank by the scraper conveyor is called a scraper conveyor. The adjacent central groove of the KS scraper conveyor is called a flexible scraper conveyor with limited bending in the horizontal and vertical planes. The working surface conveyor in which the fuselage is bent at a 90-degree angle at the intersection of the working surface 1 and the transportation lane is called a "corner scraper conveyor". In the current coal mining face, the role of the scraper conveyor is not only to transport coal and materials, but also the running track of the shearer, so it has become an indispensable main equipment in the modern coal mining process. The squeegee conveyor can be kept in continuous operation and production can be carried out normally. Otherwise, the entire coal mining face will be discontinued, interrupting the entire production.

First, the working principle of the scraper conveyor

The open chute is used as a receiving member for coal, vermiculite or material, and the scraper is fixed on the chain to form a scraper chain as a traction member. When the head drive is activated, the sprocket on the driven head shaft rotates, causing the scraper chain to circulate and move the animal material along the chute until the head is unloaded. The scraper chain bypasses the sprocket for a stepless closed cycle operation to complete the material transport. The construction of the conveyor meets the requirements of the single handling of the automatic control of the material handling system. For example, the trolley conveyor of the automatic sorting package used by the post office should be able to meet the requirements of the sorting action.

Second, the application of scraper conveyor

It is widely used in electric power, food, metallurgy, chemical, coal, mining, ports, building materials and other fields. In recent years, belt conveyors have gradually begun to replace in some fields because of its wide range of conveying materials, wide range of conveying capacity, adaptability of conveying routes, flexible loading and unloading materials and low reliability and low cost. Car and locomotive transportation. Become the main equipment for bulk transportation. It is extremely important to speed up the development of belt conveyors, especially belt conveyors with electric drums as the driving device. Because of its compact structure, high transmission efficiency, low noise, long service life, stable operation, good reliability and tightness, and small space occupation.

Third, the characteristics of the scraper conveyor

The structure is solid. It can withstand the external forces such as punching, smashing, smashing and pressing of coal, vermiculite or other materials. It can adapt to the need of unevenness and bending of the floor of coal mining face, and can withstand bending in vertical or horizontal direction. The body is short and easy to install. Can double as the track of the shearer operation. It can be operated in reverse to facilitate the handling of bottom chain accidents. Can be used as the fulcrum of the front section of the liquid night bracket. Heavy weight, installation and handling time and effort; the central trough is generally made of 6~15mm steel plate, easy to deform when subjected to large impact, difficult to repair; poor corrosion resistance; poor wear resistance; friction between material and middle groove The coefficient is large, and the power of the scraper conveyor is mostly consumed by the friction between the material and the central tank, resulting in excessive energy consumption.