Downward blowing type valve box for coal dry separation belt conveyor

Abstract

The utility model discloses a down-blowing type valve box for a coal dry separation belt conveyor, and relates to the technical field of down-blowing type valve boxes, the down-blowing type valve box comprises a box body, a handle is fixedly connected above a fixing plate, connecting rods are fixedly connected to two sides of the lower end face of the box body, connecting grooves are formed in the lower ends of the connecting rods, and the lower ends of the connecting rods are fixedly connected with the handle. Sliding blocks are slidably connected into the connecting grooves, a fixing rod is rotatably connected between the sliding blocks on the two sides, an air outlet hole is formed in the lower end of the fixing rod, and a nozzle is fixedly installed on the outer side of the air outlet hole. The problems that a nozzle of a traditional valve box is of a fixed integrated structure, the position of the nozzle cannot be adjusted, and the nozzle can only be adjusted by moving the whole valve box are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of a down-blowing valve box, in particular to a down-blowing valve box used for a coal dry-sorting belt conveyor. Background Art

[0002] The gangue sorting belt conveyor is a kind of equipment that automatically sorts out materials with different characteristics from other materials according to the differences in material density, shape, material and other characteristics, using X-ray photoelectric detection technology. Its sorting environment is harsh, with a lot of wet coal slime, and gangue basically contains some external water. After the identification system determines, the belt throws the material, the valve box is located inside the parabolic trajectory of the material, the control board issues an execution command, and the solenoid valve executes the command to open the valve hole. High-pressure gas is sprayed obliquely upward through the nozzle to change the material trajectory and achieve sorting.

[0003] In the existing intelligent dry-sorting belt conveyor, the valve box is located on the inside of the parabola. When the material passes the ejection point, it often carries a large amount of coal ash and coal slime, which can easily clog the blowing nozzle of the valve box, causing the nozzle to be unable to perform sorting, thus affecting the sorting effect. Moreover, the nozzle of the traditional valve box is a fixed integrated structure, and the nozzle position often cannot be adjusted. Adjustment can only be made by moving the valve box as a whole. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a down-blowing valve box for a coal dry-sorting belt conveyor, which solves the problems of the existing intelligent dry-sorting belt conveyor, where the valve box is located inside the parabola, and when the material passes through the ejection point, it often carries a large amount of coal ash and coal slime, which easily blocks the blowing nozzle of the valve box, causing the nozzle to be unable to perform sorting, thereby affecting the sorting effect; the nozzle of the traditional valve box is a fixed integrated structure, and the nozzle position often cannot be adjusted, and the adjustment can only be made by moving the valve box as a whole.

[0005] To achieve the above-mentioned purpose, the utility model proposes a down-blowing valve box for a coal dry sorting belt conveyor, comprising: a box body, a handle fixedly connected to the top of the fixed plate, connecting rods fixedly connected to both sides of the lower end surface of the box body, a connecting groove is provided at the lower end of the connecting rod, a slider is slidably connected in the connecting groove, a fixed rod is rotatably connected between the sliders on both sides, an air outlet is provided at the lower end of the fixed rod, and a nozzle is fixedly installed on the outside of the air outlet.

[0006] As a further solution of the utility model: a fixing plate is fixedly provided on the upper part of the box body, an air storage cavity is fixedly provided inside the box body, and the lower end of the air inlet pipe is connected to the air storage cavity inside the box body.

[0007] As a further solution of the utility model: a handle is fixedly connected above the fixing plate and close to both sides.

[0008] As a further solution of the utility model: an inspection cover is fixedly installed on the side of the box body, a plurality of first connecting holes are opened in front of the air storage cavity, a plurality of transport holes are opened at the bottom of the box body, and a second connecting hole is opened on the front end surface of the fixing rod.

[0009] As a further solution of the utility model: a connecting pipe is connected between the first connecting hole and the second connecting hole, a solenoid valve is installed on the outside of the connecting pipe, and the connecting pipe passes through the transport hole.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. This utility model adopts a downward blowing structure, the nozzle is set downward, and the material is below the nozzle, which effectively avoids the risk of the nozzle being blocked by coal slime.

[0012] 2. By setting, the slider slides at the lower end of the connecting rod so that the fixed rod corresponds to the material, and then the fixed rod is rotated to adjust the position of the nozzle so that the nozzle is located above the parabolic trajectory of the belt material. The position of the nozzle can be adjusted without adjusting the position of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0015] Figure 3 It is an enlarged view of part A of the utility model.

[0016] In the figure: 1. box body; 2. handle; 3. air inlet pipe; 4. fixing plate; 5. inspection cover; 6. first connecting hole; 7. transport hole; 8. second connecting hole; 9. air outlet; 10. connecting pipe; 11. solenoid valve; 12. fixing rod; 13. slider; 14. connecting rod. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-3 As shown, a down-blowing valve box for a coal dry sorting belt conveyor comprises: a box body 1, a fixing plate 4 is fixedly arranged on the top of the box body 1, and an air storage cavity is fixedly arranged inside the box body 1.

[0019] An air intake pipe 3 is symmetrically fixedly connected above the fixing plate 4 , and the lower end of the air intake pipe 3 is connected to the air storage chamber inside the box body 1 , and high-pressure gas enters the air intake pipe 3 and is stored in the air storage chamber.

[0020] A handle 2 is fixedly connected above the fixed plate 4 and near both sides. When work starts, the box 1 is lifted by hooking the handle 2 with a crane and installed on a protective net. The protective net is installed above the belt, and materials are transported on the belt.

[0021] An inspection cover 5 is fixedly installed on the side of the box body 1 , a plurality of first connection holes 6 are opened in front of the air storage cavity, and a plurality of transport holes 7 are opened at the bottom of the box body 1 .

[0022] Connecting rods 14 are fixedly connected to both sides of the lower end surface of the box body 1. A connecting groove is formed at the lower end of the connecting rod 14. A slider 13 is slidably connected in the connecting groove. A fixing rod 12 is rotatably connected between the sliders 13 on both sides.

[0023] A second connecting hole 8 is formed at the front end surface of the fixing rod 12 , an air outlet 9 is formed at the lower end of the fixing rod 12 , and a nozzle is fixedly mounted on the outer side of the air outlet 9 .

[0024] The slider 13 slides on the lower end of the connecting rod 14 so that the fixed rod 12 corresponds to the material, and then the fixed rod 12 is rotated to adjust the position of the nozzle so that the nozzle is located above the parabolic trajectory of the belt material.

[0025] A connecting pipe 10 is connected between the first connecting hole 6 and the second connecting hole 8 , a solenoid valve 11 is installed on the outer side of the connecting pipe 10 , and the connecting pipe 10 passes through the transport hole 7 .

[0026] The high-pressure gas in the gas storage chamber can enter the interior of the fixing rod 12 through the connecting pipe 10 and then be ejected from the nozzle.

[0027] The utility model adopts a downward blowing structure, the nozzle is arranged downward, the material is below the nozzle, and the risk of the nozzle being blocked by coal slime is effectively avoided.

[0028] The nozzle is connected to the box body 1 through a connecting pipe 10, and the sliders 13 and the connecting rods 14 on both sides can realize angle adjustment and locking.

[0029] Working principle:

[0030] At the beginning of the work, the box 1 is lifted by hooking the handle 2 with a crane and installed on the protective net, and the protective net is installed above the belt, and the material is transported on the belt.

[0031] The slider 13 slides on the lower end of the connecting rod 14 so that the fixed rod 12 corresponds to the material, and then the fixed rod 12 is rotated to adjust the position of the nozzle so that the nozzle is located above the parabolic trajectory of the belt material; the solenoid valve 11 is opened by the control device, and the high-pressure gas inside the air storage chamber enters the interior of the fixed rod 12 through the connecting pipe 10, and then is ejected from the nozzle. By spraying the high-pressure gas vertically downward, the trajectory separation of coal and gangue is achieved to achieve the sorting effect.

[0032] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A down-blowing valve box for a coal dry-sorting belt conveyor, characterized in that: include: A box body (1), wherein a fixing plate (4) is fixedly arranged on the top of the box body (1), a handle (2) is fixedly connected to the top of the fixing plate (4), connecting rods (14) are fixedly connected to both sides of the lower end surface of the box body (1), a connecting groove is provided at the lower end of the connecting rod (14), a slider (13) is slidably connected in the connecting groove, a fixing rod (12) is rotatably connected between the sliders (13) on both sides, an air outlet (9) is provided at the lower end of the fixing rod (12), and a nozzle is fixedly installed on the outer side of the air outlet (9).

2. The down-blowing valve box for a coal dry separation belt conveyor according to claim 1 is characterized in that: An air storage cavity is fixedly provided inside the box body (1), an air intake pipe (3) is symmetrically fixedly connected above the fixing plate (4), and the lower end of the air intake pipe (3) is connected to the air storage cavity inside the box body (1).

3. The down-blowing valve box for a coal dry separation belt conveyor according to claim 1 is characterized in that: The handles (2) are fixedly connected above the fixing plate (4) and close to the two sides.

4. The down-blowing valve box for a coal dry separation belt conveyor according to claim 2 is characterized in that: An inspection cover (5) is fixedly mounted on the side of the box body (1), a plurality of first connection holes (6) are provided in front of the air storage cavity, a plurality of transport holes (7) are provided at the bottom of the box body (1), and a second connection hole (8) is provided on the front end surface of the fixing rod (12).

5. The down-blowing valve box for a coal dry separation belt conveyor according to claim 4 is characterized in that: A connecting pipe (10) is connected between the first connecting hole (6) and the second connecting hole (8), a solenoid valve (11) is installed on the outside of the connecting pipe (10), and the connecting pipe (10) passes through the transport hole (7).

Images