Wear-resistant coal dropping pipe

Abstract

The utility model discloses a wear-resistant coal drop pipe, which relates to the technical field of coal conveying and comprises a wear-resistant lining plate fixed on the surface of the inner wall of a pipe body, a plurality of uniformly distributed hollow shafts rotationally arranged on the lower surface of the pipe body, guide plates fixed on the hollow shafts, and air guide holes formed in the guide plates and communicated with the interiors of the hollow shafts. The two ends of the hollow shafts extend out of the pipe body, pressing rods are fixed to the two ends of the hollow shafts respectively, right-angle double torsion springs corresponding to the hollow shafts in number are arranged on the outer wall of the pipe body, the lower surfaces of the pressing rods abut against outer arm rods on the two sides of the right-angle double torsion springs, and the hollow shafts are connected with high-pressure air through air inlet pipes. The coal drop pipe has the advantages that coal is guided and uniformly dispersed through the guide plates, and the dropping speed is reduced, so that the abrasion of the coal to the inner wall of the pipe is reduced, and the service life of the coal drop pipe is prolonged; high-pressure air is introduced into the air inlet pipe regularly and is blown into the pipe body along the hollow shaft and the air guide holes, and the pipe wall is cleaned through compressed air.

Description

Technical field:

[0001] The utility model relates to the technical field of coal transportation, in particular to a wear-resistant coal dropping pipe. Background technology:

[0002] Coal transportation is an essential step in the mining, processing, and use of coal. Commonly used coal conveying devices include a support frame, a conveyor belt, and a coal drop pipe. During operation, coal falls through an opening at the top of the drop pipe and onto a conveyor belt below it. The conveyor belt then transports the coal to a pre-determined destination, completing the coal's transportation.

[0003] The original coal drop pipe was installed with an inner lining during infrastructure construction. After years of operation, as coal continued to impact the coal drop pipe, the inner lining was severely worn, causing the steel plate of the coal drop pipe to become thinner or worn through, resulting in coal leakage. The dust generated can easily cause the rubber blocks to spontaneously combust and cause flying dust pollution. Utility model content:

[0004] The purpose of the utility model is to provide a wear-resistant coal dropping pipe to solve the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical solutions:

[0006] A wear-resistant coal dropping pipe comprises an inclined pipe body, a wear-resistant lining, a hollow shaft, a guide plate, a pressure rod, a right-angled double torsion spring and an air intake pipe; the inner wall surface of the pipe body is fixed with a wear-resistant lining, and the lower surface of the pipe body is rotatably provided with a plurality of evenly distributed hollow shafts, the hollow shaft is fixed with a guide plate, the guide plate is provided with an air guide hole and is connected to the inside of the hollow shaft, both ends of the hollow shaft extend out of the pipe body, and a pressure rod is fixed at each end of the hollow shaft, the outer wall of the pipe body is provided with a right-angled double torsion spring corresponding to the number of hollow shafts, the lower surface of the pressure rod abuts on the outer arm rods on both sides of the right-angled double torsion spring, the inner arm rod in the middle of the right-angled double torsion spring is fixed to the lower surface of the outer wall of the pipe body, one end of the hollow shaft is connected to one end of the air intake pipe, the other end of the hollow shaft is sealed, and the other end of the air intake pipe is connected to high-pressure air.

[0007] Preferably, the wear-resistant lining includes a filler plate and a wear-resistant steel plate; the filler plate is a grid structure and is fixed to the inner wall surface of the tube body, several grids are filled with rubber blocks, and the wear-resistant steel plate is welded to the filler plate.

[0008] Preferably, a plurality of bulk material troughs are evenly provided on the guide plate, and air guide holes are provided on the end faces of the bulk material troughs.

[0009] Preferably, the inner rings on both sides of the right-angle double torsion spring are sleeved on the limit columns, the limit columns are fixed on the outer wall of the tube body, and the lower surface of the outer wall of the tube body is fixed with a C-shaped clamp by bolts, and the C-shaped clamp clamps the inner arm rod in the middle of the right-angle double torsion spring to the lower surface of the outer wall of the tube body.

[0010] The advantages of this utility model are: the coal is guided and evenly dispersed through multiple guide plates, and the falling speed is slowed down, so that the wear of the coal on the inner wall of the pipe is reduced, and the service life of the coal drop pipe is increased; high-pressure air is regularly introduced into the air inlet pipe and blown into the pipe body along the hollow shaft and the air guide hole, and the pipe wall is cleaned by compressed air. Description of the drawings:

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0013] Figure 3 This is a cross-sectional view of the internal structure of the utility model;

[0014] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0015] Figure 5 It is a structural diagram of the wear-resistant liner;

[0016] Figure 6 for Figure 5 Internal cross-sectional view of

[0017] Figure 7 Schematic diagram of the structure of the component guide plate;

[0018] Figure 8 It is a structural diagram of the right-angle double torsion spring component.

[0019] In the figure: 1. Pipe body, 2. Wear-resistant lining, 2.1. Filling plate, 2.2. Wear-resistant steel plate, 3. Hollow shaft, 4. Guide plate, 4.1. Air guide hole, 4.2. Bulk material chute, 5. Pressure rod, 6. Right-angle double torsion spring, 7. Inlet pipe, 8. Limit column, 9. C-shaped clamp. Specific implementation method:

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-8 , the utility model provides a wear-resistant coal dropping pipe technical solution:

[0022] The cam 5 has two guide rails 4 on the inside and two guide rails 5 on the inside, and the guide rail 4 has two guide rails 4 on the inside, and the guide rail 4 has two guide rails 4 on the inside. Under the action of the right-angle double torsion spring 6 , the guide plate 4 can cushion the coal when it falls onto the guide plate 4 , thereby reducing the impact force of the coal on the guide plate 4 .

[0023] Among them, the wear-resistant lining 2 includes a filler plate 2.1 and a wear-resistant steel plate 2.2; the filler plate 2.1 is a grid structure and is fixed to the inner wall surface of the pipe body 1. Several grids are filled with rubber blocks. The rubber blocks absorb part of the noise generated by the impact of the wear-resistant lining 2 to minimize the impact on the external environment. The wear-resistant steel plate 2.2 is welded to the filler plate 2.1.

[0024] A plurality of bulk troughs 4.2 are evenly provided on the guide plate 4 for evenly dividing the fallen coal. An air guide hole 4.1 is provided on the end face of the bulk trough 4.2 so that compressed air flows into the pipe body 1 through the air guide hole 4.1, thereby cleaning the pipe wall.

[0025] The inner rings on both sides of the right-angle double torsion spring 6 are sleeved on the limit column 8, the limit column 8 is fixed on the outer wall of the tube body 1, and a C-shaped clamp 9 is fixed to the lower surface of the outer wall of the tube body 1 by bolts. The C-shaped clamp 9 clamps the inner arm rod in the middle of the right-angle double torsion spring 6 on the lower surface of the outer wall of the tube body 1.

[0026] The working principle is as follows: when coal falls from the upper end of the coal drop pipe, multiple guide plates 4 are used to guide and evenly disperse the coal, and slow down the falling speed, so that the wear of the coal on the inner wall of the pipe is reduced, thereby increasing the service life of the coal drop pipe.

[0027] High-pressure air is regularly introduced into the air inlet pipe 7 and blown into the tube body 1 along the hollow shaft 3 and the air guide hole 4.1, so that the tube wall is cleaned by the compressed air.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wear-resistant coal drop pipe, characterized by: The invention comprises an inclined tube body (1), a wear-resistant lining plate (2), a hollow shaft (3), a guide plate (4), a pressure rod (5), a right-angle double torsion spring (6) and an air inlet pipe (7); the inner wall surface of the tube body (1) is fixed with a wear-resistant lining plate (2); the lower surface of the tube body (1) is provided with a plurality of evenly distributed hollow shafts (3); a guide plate (4) is fixed on the hollow shaft (3); an air guide hole (4.1) is opened on the guide plate (4) and is communicated with the interior of the hollow shaft (3); both ends of the hollow shaft (3) extend out of the tube body. (1), a pressure rod (5) is fixed at each end of the hollow shaft (3), and the outer wall of the tube body (1) is provided with right-angle double torsion springs (6) corresponding to the number of the hollow shafts (3). The lower surface of the pressure rod (5) abuts against the outer arm rods on both sides of the right-angle double torsion spring (6), and the inner arm rod in the middle of the right-angle double torsion spring (6) is fixed to the lower surface of the outer wall of the tube body (1). One end of the hollow shaft (3) is connected to one end of the intake pipe (7), and the other end of the hollow shaft (3) is sealed. The other end of the intake pipe (7) is connected to high-pressure air.

2. The wear-resistant coal drop pipe according to claim 1, characterized in that: The wear-resistant lining plate (2) comprises a filler plate (2.1) and a wear-resistant steel plate (2.2); the filler plate (2.1) is a grid structure and is fixed to the inner wall surface of the pipe body (1), a plurality of grids are filled with rubber blocks, and the wear-resistant steel plate (2.2) is welded to the filler plate (2.1).

3. The wear-resistant coal drop pipe according to claim 1, characterized in that: A plurality of bulk material troughs (4.2) are evenly arranged on the guide plate (4), and air guide holes (4.1) are arranged on the end faces of the bulk material troughs (4.2).

4. The wear-resistant coal drop pipe according to claim 1, characterized in that: The inner rings on both sides of the right-angle double torsion spring (6) are sleeved on the limit column (8), and the limit column (8) is fixed on the outer wall of the tube body (1). The lower surface of the outer wall of the tube body (1) is fixed with a C-shaped clamp (9) by bolts, and the C-shaped clamp (9) clamps the inner arm rod in the middle of the right-angle double torsion spring (6) on the lower surface of the outer wall of the tube body (1).

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