Horizontal scraper conveyor

Horizontal scraper conveyor is commonly used for horizontal conveying of granular and powdery materials. On the basis of single point feeding and discharging, it can also be fed and discharged at multiple points. It has outstanding characteristics in conveying toxic, explosive, high-temperature, and easily flying materials, improving worker operating conditions, and reducing environmental pollution.

1、 Overview: Horizontal scraper conveyors are commonly used for horizontal conveying of granular and powdery materials. On the basis of single point feeding and discharging, they can also be fed and discharged from multiple points. They have outstanding characteristics in conveying toxic, explosive, high-temperature, and easily flying materials, improving worker operating conditions, and reducing environmental pollution.
The adjacent middle grooves of a scraper conveyor that can be bent to a limited extent in the horizontal and vertical planes are called a bendable scraper conveyor. The working face conveyor with a 90 degree bend at the intersection of the working face and the transport roadway 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 to serve as the operating track of the coal mining machine, making it an indispensable main equipment in modern coal mining technology. If the scraper conveyor can maintain continuous operation, production can proceed normally. Otherwise, the entire coal mining face will be in a state of shutdown, causing the entire production to be interrupted.
The horizontal conveyor series products are widely used in industries and sectors such as metallurgy, building materials, electricity, chemical industry, cement, ports, docks, coal, mining, grain and oil, food, feed, etc.
2、 Characteristics:
1. This equipment is commonly used for horizontal conveying of granular and powdery materials. It can also be fed and discharged from multiple points on the basis of single point feeding and discharging. It has outstanding characteristics in conveying toxic, explosive, high-temperature, and easily flying materials, improving worker operating conditions, and reducing environmental pollution.
2. This machine has the characteristics of high overall lifespan, stable operation, small structural dimensions, large conveying capacity, low energy consumption, and low material damage rate.
3、 Component composition
The main structure and components of various types of scraper conveyors are basically the same, consisting of three parts: the head, middle, and tail.
In addition, there are auxiliary components such as hydraulic jacks for pushing conveyors and chain tighteners for tightening chains. The head of the machine is composed of a head frame, an electric motor, a hydraulic coupling, a reducer, and a sprocket. The middle part is composed of transition groove, middle groove, chain, scraper and other components. The tail of the machine is a device for returning the scraper chain. The tail of a heavy-duty scraper conveyor, like the head, is also equipped with a power transmission device, which is distinguished by its installation position as the upper head and lower head.
4、 Working principle
The working principle of a scraper conveyor is to use an open chute as a support for coal, gangue, or materials, and fix the scraper on a chain (forming a scraper chain) as a traction component. After the transmission part of the machine head is started, the sprocket on the drive head shaft rotates, causing the scraper chain to circulate and move the animal material along the chute until it is unloaded at the machine head. The scraper chain runs continuously in a closed loop around the chain rotation to complete the transportation of materials.
5、 Technical parameter report

model		12	14	16	18	20	22	25	30	32	40	50	60
Machine slot	Width (mm)	120	140	160	180	200	220	250	300	320	400	500	600
	Height (mm)	120	140	160	180	200	220	250	300	320	400	500	600
Conveying capacity Q (m3/h)
chain article quick degree （m/s）	0.16	6	7	13	16	20	23	27	30	…	…	…	…
	0.2	8	9	16	20	24	29	34	36	55	…	…	…
	0.25	10	11	20	25	31	34	42	45	69	90	150	230
	0.32	12	14	25	32	39	46	54	60	88	130	210	300
Power (km)		1.5km-55km
conveying distance		80m
tilt angle		0-150

6、 Advantages and disadvantages
The main advantages of scraper conveyor are:
advantage:
1. Solid structure. Can withstand external forces such as impact, collision, smashing, and pressure from coal, gangue, or other materials.
2. Can adapt to the needs of uneven and curved bottom plates in coal mining faces, and can withstand vertical or horizontal bending.
3. The body is short and easy to install. 4. Can also serve as a track for the operation of coal mining machines.
5. Can run in reverse for easy handling of bottom chain accidents.
6. Can serve as a pivot point for the front section of the liquid night bracket.
Disadvantages:
1. The no-load power consumption is relatively high, accounting for about 30% of the total power.
2. Not suitable for long-distance transportation.
3. Easy to cause chain drop and jump accidents.

4. Consuming more steel. The cost is high.