Dust suppression system of car dumper

Abstract

The utility model relates to the technical field of dumper dust suppression, in particular to a dumper dust suppression system which comprises a spraying unit, a water supply unit and an air supply unit. The spraying unit is communicated with the water supply unit through a spraying water supply pipe, and the spraying unit is also communicated with the air supply unit through a spraying air supply pipe; heating units are arranged on the spraying water supply pipe and the spraying air supply pipe; water and air are mixed through the water supply unit and the air supply unit and then sprayed out through the spraying unit, the atomization degree of water mist is improved, the direct contact area with dust is increased, meanwhile, the water content of materials can be reduced, the dust suppression effect is achieved, and the dust suppression efficiency is guaranteed; and cold weather can be dealt with, stable dust suppression operation is guaranteed, and the actual dust suppression requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of dust suppression for car tippers, in particular to a dust suppression system for car tippers. Background Art

[0002] A car tipper is a large mechanical equipment used to unload bulk materials from railway open cars. It is a loading and unloading machine that can flip or tilt rail cars to unload materials.

[0003] When unloading, the tipping machine will directly dump the materials in the car, which will cause a lot of dust on the site. Usually, a dust suppression system is used to achieve environmental protection purposes. The dust suppression system usually uses water mist dust suppression or sampling dry mist dust suppression, but the dust suppression effect is not good, resulting in low dust suppression reliability and cannot meet actual dust suppression needs.

[0004] For example, the Chinese utility model patent with application number 202221409129.4, although the flow direction of dust is controlled by increasing the wind pressure generated by the fan assembly to prevent the overflow of smoke and dust, its purpose is to increase the effective dust suppression time and improve the dust suppression effect, but dust suppression through this scheme will lead to an increase in dust suppression time. At the same time, by spraying carbon dioxide and utilizing the characteristic that the density of carbon dioxide is greater than that of air, the sprayed carbon dioxide layer shields the smoke and dust and makes the smoke fall with the carbon dioxide to achieve the dust suppression effect. This dust suppression method is inefficient and is prone to disturbing the air in the field when subjected to the wind pressure generated by the fan assembly, further reducing the reliability of dust suppression and failing to meet actual dust suppression needs. Utility Model Content

[0005] The utility model aims to provide a dust suppression system for a car tipper, so as to solve the technical problem that the current dust suppression system for a car tipper has low reliability when in use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dust suppression system for a dumper, comprising a spray unit, a water supply unit and an air supply unit;

[0008] The spray unit is connected to the water supply unit through a spray water supply pipe, and the spray unit is also connected to the air supply unit through a spray air supply pipe;

[0009] The spray water supply pipe and the spray air supply pipe are both provided with heating units.

[0010] It is further defined that the water supply unit includes a water supply pipe, a water storage tank and a centrifugal pump which are connected in sequence, the centrifugal pump is connected to the spray unit through a spray water supply pipe, and a water inlet valve is provided on the water supply pipe.

[0011] It is further defined that a first liquid level gauge and a second liquid level gauge are provided on the water tank, the first liquid level gauge is close to the upper end of the water tank, and the second liquid level gauge is close to the lower end of the water tank.

[0012] It is further defined that the air supply unit includes an air compressor and an air storage tank connected to the air compressor, and the air storage tank is connected to the spray unit through a spray air supply pipe.

[0013] It is further defined that the ratio of the diameter of the spray water supply pipe to the diameter of the spray air supply pipe is 1:(1.8-2).

[0014] It is further defined that the spray unit includes a first transverse spray, a first longitudinal spray, a second transverse spray, and a second longitudinal spray that sequentially surround and form a slit-shaped structure;

[0015] The first horizontal spray and the first vertical spray are both connected to the spray water supply pipe through the first dust suppression water supply pipe, and the first horizontal spray and the first vertical spray are both connected to the spray air supply pipe through the first dust suppression air supply pipe;

[0016] The second transverse spray and the second longitudinal spray are both connected to the spray water supply pipe through the second dust suppression water supply pipe, and the second transverse spray and the second longitudinal spray are both connected to the spray air supply pipe through the second dust suppression air supply pipe.

[0017] It is further defined that the first dust suppression water supply pipe and the second dust suppression water supply pipe are both connected to the spray water supply pipe through a water supply three-way valve;

[0018] The first dust suppression air supply pipe and the second dust suppression air supply pipe are both connected to the spray air supply pipe through the air supply three-way valve.

[0019] It is further defined that a water supply valve is provided on the spray water supply pipe, and the water supply valve is located between the centrifugal pump and the water supply three-way valve; an air supply valve is provided on the spray air supply pipe, and the air supply valve is located between the air storage tank and the air supply three-way valve.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model mixes water and gas through the water supply unit and the air supply unit and then sprays it out through the spray unit, thereby improving the atomization degree of water mist and increasing the direct contact area with dust. At the same time, it can reduce the water content of the material, provide dust suppression effect, and ensure dust suppression efficiency. At the same time, by arranging a heating unit on the spray water supply pipe and the spray air supply pipe, it can cope with cold weather, ensure the stable progress of dust suppression operations, and meet actual dust suppression needs.

[0022] 2. The utility model can replenish water in time according to the liquid level status of the water tank by arranging the first liquid level gauge and the second liquid level gauge, thereby improving the dust suppression reliability of the tipping machine; at the same time, the spray unit forms a U-shaped structure to achieve all-round dust suppression for the tipping machine, thereby improving the dust suppression quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model when the dust suppression system of the dumper is disconnected;

[0024] Figure 2 This is a schematic diagram of the overall structure of the dust suppression system of the utility model when the dumper is closed;

[0025] In the figure: 10-spray unit; 11-first horizontal spray; 12-second horizontal spray; 13-first longitudinal spray; 14-second longitudinal spray; 20-water supply unit; 21-water supply pipe; 22-water storage tank; 23-centrifugal pump; 24-first liquid level gauge; 25-second liquid level gauge; 30-air supply unit; 31-air compressor; 32-air storage tank; 40-spray water supply pipe; 41-first dust suppression water supply pipe; 42-second dust suppression water supply pipe; 50-spray air supply pipe; 51-first dust suppression air supply pipe; 52-second dust suppression air supply pipe; 60-water supply three-way valve; 61-water supply valve; 70-air supply three-way valve; 71-air supply valve. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0027] Example 1

[0028] refer to Figure 1 and Figure 2 The present embodiment provides a dust suppression system for a car tipping machine, including a spray unit 10, a water supply unit 20 and an air supply unit 30; the spray unit 10 is arranged in the car tipping machine for performing dust suppression operations in the car tipping operation area, and the water supply unit 20 and the air supply unit 30 are usually selected to be arranged outside the car tipping operation area.

[0029] The spray unit 10 is connected to the water supply unit 20 through the spray water supply pipe 40, and the spray unit 10 is also connected to the air supply unit 30 through the spray air supply pipe 50, so that the spray unit 10 will spray the water-gas mixture simultaneously to form water mist when working, and the water flow rate and the gas pressure regulation are adjusted by the commercially available dry fog host; in order to avoid the external environment affecting the water supply and to avoid the air being too cold to reduce the atomization dust suppression effect, heating units are selected to be simultaneously provided on the spray water supply pipe 40 and the spray air supply pipe 50, such as electric heating tapes, which heat the water in the spray water supply pipe 40 and the air in the spray air supply pipe 50 by electric heating so that their temperature is not lower than the required temperature, such as 5°C.

[0030] To further explain, the water supply unit 20 includes a water supply pipe 21, a water storage tank 22 and a centrifugal pump 23 which are connected in sequence. The water supply pipe 21 is connected to a water source and is used to supply water to the water storage tank 22. A water inlet valve 26 is provided on the water supply pipe 21. One end of the centrifugal pump 23 is connected to the water outlet of the water storage tank 22, and the other end of the centrifugal pump 23 is connected to the spray water supply pipe 40, which is used to provide water pressure for the spray water. At the same time, it is also convenient to provide stable water to the higher-positioned spray unit 10 to ensure the reliability of dust suppression operations.

[0031] In order to facilitate the control of the amount of water in the water tank 22, a first liquid level gauge 24 and a second liquid level gauge 25 are selected to be set on the water tank 22, wherein the first liquid level gauge 24 is set near the upper end of the water tank 22, and is used to measure whether the liquid level in the water tank 22 is too high. If it is too high, you can choose to reduce the water intake or stop the water intake; and the second liquid level gauge 25 is set near the lower end of the water tank 22, and is used to measure whether the liquid level in the water tank 22 is too low. If it is too low, you need to increase the water intake or start water injection.

[0032] The water intake can be controlled by manual remote control, for example, a solenoid valve is installed on the water supply pipe 21, and the first liquid level meter 24 and the second liquid level meter 25 can be monitored by commercially available remote liquid level detection equipment, so as to control whether the water supply pipe 21 is filled with water through the real-time water level status in the water tank 22.

[0033] Further explanation, the air supply unit 30 includes an air compressor 31 and an air storage tank 32, the air inlet end of the air storage tank 32 is connected to the air compressor 31, the air outlet end of the air storage tank 32 is connected to the spray air supply pipe 50, and the air inlet end of the air storage tank 32 is located below the air outlet end thereof; wherein the air compressor 31 can be a screw air compressor, and the volume of the air storage tank 32 can be 8m 3 , used to provide a stable air source for the spray unit 10 to ensure stable and reliable dust suppression.

[0034] The ratio of the diameter of the spray water supply pipe 40 to the diameter of the spray air supply pipe 50 is 1:(1.8-2). For example, the diameter of the spray water supply pipe 40 can be selected as 65 mm, and the diameter of the spray air supply pipe 50 can be selected as 125 mm.

[0035] refer to Figure 2 , further explained, the spray unit 10 includes a first transverse spray 11, a first longitudinal spray 13, a second transverse spray 12 and a second longitudinal spray 14 which are arranged in sequence around to form a U-shaped structure. The first transverse spray 11, the first longitudinal spray 13, the second transverse spray 12 and the second longitudinal spray 14 are installed in the working area of ​​the tipping machine to spray from all sides to the middle to achieve dust suppression.

[0036] The first transverse spray 11, the first longitudinal spray 13, the second transverse spray 12 and the second longitudinal spray 14 are all composed of at least one spray component, wherein the number of spray components of the first transverse spray 11 is the same as the number of spray components of the second transverse spray 12, the number of spray components of the first longitudinal spray 13 is the same as the number of spray components of the second longitudinal spray 14, and the number of spray components of the first transverse spray 11 is greater than the number of spray components of the first longitudinal spray 13.

[0037] The water inlet end of the spray assembly is connected to the spray water supply pipe 40 through the first dust suppression water supply pipe 41 or the second dust suppression water supply pipe 42, and the air inlet end of the spray assembly is connected to the spray air supply pipe 50 through the first dust suppression air supply pipe 51 or the second dust suppression air supply pipe 52, and the spray end of the spray assembly faces the rollover operation area.

[0038] Specifically, the first dust suppression water supply pipe 41 and the second dust suppression water supply pipe 42 are connected to the spray water supply pipe 40 through the water supply three-way valve 60. The diameter of the first dust suppression water supply pipe 41 is the same as the diameter of the second dust suppression water supply pipe 42, for example, 32 mm. Each spray assembly is connected to the corresponding first dust suppression water supply pipe 41 or the second dust suppression water supply pipe 42 through a water supply branch pipe.

[0039] The first dust suppression air supply pipe 51 and the second dust suppression air supply pipe 52 are connected to the spray air supply pipe 50 through the air supply three-way valve 70. The diameter of the first dust suppression air supply pipe 51 and the diameter of the second dust suppression air supply pipe 52 are the same, for example, 80 mm. Each spray component is connected to the corresponding first dust suppression air supply pipe 51 or the second dust suppression air supply pipe 52 through the air supply branch pipe.

[0040] The ratio of the diameter of the first dust suppression water supply pipe 41 to the diameter of the first dust suppression air supply pipe 51 can be selected as 1:2.2-2.8, preferably 1:2.5.

[0041] To further explain, a water supply valve 61 is provided on the spray water supply pipe 40, and the water supply valve 61 is located between the centrifugal pump 23 and the water supply three-way valve 60; an air supply valve 71 is provided on the spray air supply pipe 50, and the air supply valve 71 is located between the air storage tank 32 and the air supply three-way valve 70. By arranging the water supply valve 61 and the air supply valve 71, the demand of timely shutdown after the dust suppression operation is completed during actual use is met, thereby avoiding waste of resources and restarting the dust suppression operation after the rollover is completed.

[0042] At the same time, it is also possible to choose to set a spare water supply valve next to the water supply valve 61 and a spare air supply valve next to the air supply valve 71, so that when the water supply valve fails and / or the air supply valve fails, the spare water supply valve and / or the spare air supply valve can be used to supply water and air, further improving the reliability of dust suppression operations.

[0043] Example 2

[0044] Based on the dust suppression system for a car tipper provided in Example 1, this embodiment further provides a dust suppression method for a car tipper, comprising the following steps:

[0045] S1. Determine whether the temperature of the tipping machine is lower than the set temperature. If so, start the heating unit; if not, turn off the heating unit;

[0046] S2, determine whether the liquid level in the water tank 22 is between the first liquid level gauge 24 and the second liquid level gauge 25. If yes, execute step S3; if not, when the liquid level in the water tank 22 is lower than the position of the second liquid level gauge 25, open the water inlet valve 26 and re-execute step S2; when the liquid level in the water tank 22 is higher than the position of the first liquid level gauge 24, close the water inlet valve 26 and execute step S3;

[0047] S3, after the rollover operation is completed, both the water supply valve 61 and the air supply valve 71 are opened;

[0048] S4, the centrifugal pump 23 and the air compressor 31 are started;

[0049] S5. The spray unit 10 starts dust suppression operation.

[0050] The spray water supply pipe 40 supplies water to the first lateral spray 11 and the first longitudinal spray 13 through the first dust suppression water supply pipe 41, and the spray air supply pipe 50 supplies high-pressure gas to the first lateral spray 11 and the first longitudinal spray 13 through the first dust suppression air supply pipe 51, so that the first lateral spray 11 and the first longitudinal spray 13 spray aerosol to suppress dust.

[0051] Similarly, the spray water supply pipe 40 supplies water to the second lateral spray 12 and the second longitudinal spray 14 through the second dust suppression water supply pipe 42, and the spray air supply pipe 50 supplies high-pressure gas to the second lateral spray 12 and the second longitudinal spray 14 through the second dust suppression air supply pipe 52, so that the second lateral spray 12 and the second longitudinal spray 14 spray aerosol to suppress dust.

[0052] The above is an embodiment of the utility model. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly describing the verification process of the utility model, and are not intended to limit the patent protection scope of the utility model. The patent protection scope of the utility model is still subject to its claims. Any equivalent structural changes made by using the description and drawings of the utility model should also be included in the protection scope of the utility model.

Claims

1. A dust suppression system for a dumper, characterized in that: It comprises a spray unit (10), a water supply unit (20) and an air supply unit (30); The spray unit (10) is connected to the water supply unit (20) via a spray water supply pipe (40), and the spray unit (10) is also connected to the air supply unit (30) via a spray air supply pipe (50); The spray water supply pipe (40) and the spray air supply pipe (50) are both provided with a heating unit.

2. The dust suppression system for a car dumper according to claim 1, characterized in that: The water supply unit (20) comprises a water supply pipe (21), a water storage tank (22) and a centrifugal pump (23) which are connected in sequence; the centrifugal pump (23) is connected to the spray unit (10) via a spray water supply pipe (40); and a water inlet valve (26) is provided on the water supply pipe (21).

3. The dust suppression system for a car dumper according to claim 2, characterized in that: The water tank (22) is provided with a first liquid level gauge (24) and a second liquid level gauge (25), wherein the first liquid level gauge (24) is close to the upper end of the water tank (22), and the second liquid level gauge (25) is close to the lower end of the water tank (22).

4. The dust suppression system for a dumper according to claim 3, characterized in that: The air supply unit (30) comprises an air compressor (31) and an air storage tank (32) connected to the air compressor (31); the air storage tank (32) is connected to the spray unit (10) via a spray air supply pipe (50).

5. The dust suppression system for a car tipper according to claim 4, characterized in that: The ratio of the diameter of the spray water supply pipe (40) to the diameter of the spray air supply pipe (50) is 1:(1.8-2).

6. The dust suppression system for a car dumper according to claim 4, characterized in that: The spray unit (10) comprises a first transverse spray (11), a first longitudinal spray (13), a second transverse spray (12) and a second longitudinal spray (14) which are sequentially arranged around the opening-shaped structure; The first transverse spray (11) and the first longitudinal spray (13) are both connected to the spray water supply pipe (40) through the first dust suppression water supply pipe (41), and the first transverse spray (11) and the first longitudinal spray (13) are both connected to the spray air supply pipe (50) through the first dust suppression air supply pipe (51); The second transverse spray (12) and the second longitudinal spray (14) are both connected to the spray water supply pipe (40) via the second dust suppression water supply pipe (42), and the second transverse spray (12) and the second longitudinal spray (14) are both connected to the spray air supply pipe (50) via the second dust suppression air supply pipe (52).

7. The dust suppression system for a dumper according to claim 6, characterized in that: The first dust suppression water supply pipe (41) and the second dust suppression water supply pipe (42) are both connected to the spray water supply pipe (40) via a water supply three-way valve (60); The first dust suppression air supply pipe (51) and the second dust suppression air supply pipe (52) are both connected to the spray air supply pipe (50) via the air supply three-way valve (70).

8. The dust suppression system for a car tipper according to claim 7, characterized in that: The spray water supply pipe (40) is provided with a water supply valve (61), and the water supply valve (61) is located between the centrifugal pump (23) and the water supply three-way valve (60); the spray air supply pipe (50) is provided with an air supply valve (71), and the air supply valve (71) is located between the air storage tank (32) and the air supply three-way valve (70).

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