Automatic dust suppression system for commercial coal

Abstract

The utility model belongs to the technical field of dust suppression equipment of a mining truck loading system, and aims to solve the problems of complicated operation and low efficiency of manual spraying operation. The commercial coal automatic dust suppression system comprises a stirring barrel, a dust suppression solution box and a spraying pipeline, the stirring barrel is provided with a dust suppressant feeding hole and a water inlet end, and the stirring barrel is used for mixing a dust suppressant and clear water into a dust suppression mixed solution through a built-in stirrer; the stirring barrel conveys the dust suppression mixed solution to a dust suppression solution box through a built-in submersible pump; a pressure pump is arranged on a second liquid outlet pipeline of the dust suppression solution box, the second liquid outlet pipeline is connected with a spraying pipeline, and an electromagnetic valve and a spraying head are arranged at the spraying end of the spraying pipeline. The dust suppression spraying system is stable and reliable in operation, the manual operation amount can be reduced through implementation of an automatic scheme, post unmanned operation is achieved, and the operation standard of railway loading transportation for dust suppression and environmental protection requirements is met. And the waste of used materials and the loss of coal in the transportation link process are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust suppression equipment for mine loading systems, and in particular relates to an automatic dust suppression system for commercial coal. Background Art

[0002] The automated dust suppression system automatically sprays dust suppressants, primarily used in the railway loading process for shipping. Shipping is the final step in the finished coal production process, and during loading operations, dust suppressants must be sprayed onto the heavy vehicles to ensure environmental protection and safe operation.

[0003] Currently, conventional spraying is performed manually using a water hose. Traditional spraying devices have a limited structure and functionality, are complex to operate, and are inefficient. Manual spraying processes are time-consuming and require frequent starts and stops. In actual production, due to the inherent limitations of manual operation, dust suppression agents must be automatically replenished in the system based on production conditions. Utility Model Content

[0004] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides an automatic dust suppression system for commercial coal.

[0005] The utility model adopts the following technical scheme: an automated dust suppression system for commercial coal, comprising a stirring barrel, a dust suppression solution tank and a spray pipeline; a dust suppressant feed port and a water inlet end are provided on the stirring barrel, and the stirring barrel mixes the dust suppressant and clean water into a dust suppression mixed solution through a built-in stirrer; the stirring barrel transports the dust suppression mixed solution to the dust suppression solution tank through a built-in submersible pump; a pressure pump is provided on the second liquid outlet pipeline of the dust suppression solution tank, the second liquid outlet pipeline is connected to the spray pipeline, and a solenoid valve and a spray head are provided at the spray end of the spray pipeline.

[0006] Preferably, it also includes a clean water tank, which is connected to a water filling pipe, a water outlet pipe, a first sewage pipe and a first overflow pipe; the clean water tank is equipped with a first liquid level gauge, the first electric gate valve at the water filling pipe is electrically connected to the first liquid level gauge, the ends of the first sewage pipe and the first overflow pipe share a section of pipe, and a first manual gate valve is provided on the first sewage pipe and the first manual gate valve is located at the front end of the connection point of the first sewage pipe and the first overflow pipe.

[0007] Preferably, the mixing barrel is connected to the clean water tank through a water outlet pipe, the mixing barrel is connected to the dust suppression solution tank through a first liquid outlet pipe and a return liquid pipe, a filter is provided on the first liquid outlet pipe, a second liquid level gauge is built into the mixing barrel, and the second electric gate valve at the water outlet pipe is electrically connected to the second liquid level gauge.

[0008] Preferably, the dust suppression solution tank is also connected to a second overflow pipe and a second sewage pipe. The ends of the second overflow pipe and the second sewage pipe are connected to the return liquid pipe. A second manual gate valve is provided on the second sewage pipe and the second manual gate valve is located at the front end of the connection point between the second overflow pipe and the second sewage pipe.

[0009] Preferably, a third electric gate valve, a flow meter, and a pressure gauge are also provided on the second liquid outlet pipeline, a cleaning pipeline is connected between the second liquid outlet pipeline and the water outlet pipe, a fourth electric gate valve is provided on the cleaning pipeline, the connection point between the cleaning pipeline and the water outlet pipe is located between the second electric gate valve and the clean water tank, and the connection point between the cleaning pipeline and the second liquid outlet pipeline is located between the pressure pump and the dust suppression solution tank.

[0010] Preferably, a fifth electric gate valve is provided on the spray pipeline, and several spray branch pipes are connected to the spray pipeline. Each spray branch pipe is provided with several spray heads. The end of the spray pipeline is connected to the circulation pipeline. The end of the circulation pipeline is forked, one of which is connected to the second liquid outlet pipeline, and the other is directly connected to the dust suppression solution tank.

[0011] Preferably, it also includes an infrared start-stop component, which includes an infrared sensor and a solenoid valve. Two groups of infrared sensors are installed before and after the spraying positions on both sides of the track. The solenoid valve is installed on the spray branch pipe and is electrically connected to the infrared sensor.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This dust suppression spray system operates stably and reliably. The implementation of the automation solution can reduce manual labor and achieve unmanned operation. It meets the dust suppression and environmental protection requirements of railway loading and transportation, avoiding the waste of materials and the loss of coal quality during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 Schematic diagram of the dust suppression solution preparation process of this embodiment;

[0016] Figure 2 2 is a schematic diagram of the spraying operation of this embodiment.

[0017] In the figure: 1-mixing barrel; 1.1-first liquid outlet pipe; 1.2-return pipe; 1.3-filter; 1.4-second liquid level gauge; 1.5-second electric gate valve; 2-dust suppression solution tank; 2.1-second liquid outlet pipe; 2.2-boosting pump; 2.3-second overflow pipe; 2.4-second sewage pipe; 2.5-second manual gate valve; 2.6-third electric gate valve; 2.7-flow meter; 2.8-pressure gauge; 3-spray pipe; 3. 1-Solenoid valve; 3.2-Sprinkler head; 3.3-Fifth electric gate valve; 3.4-Spray branch pipe; 4-Clean water tank; 4.1-Water filling pipe; 4.2-Water outlet pipe; 4.3-First sewage pipe; 4.4-First overflow pipe; 4.5-First liquid level gauge; 4.6-First electric gate valve; 4.7-First manual gate valve; 5-Cleaning pipeline; 5.1-Fourth electric gate valve; 6-Circulation pipeline; 6.1-Sixth electric gate valve; 7-Infrared sensor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 implementation methods obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by the present invention, should fall within the scope of the technical content disclosed by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0020] The utility model provides an embodiment:

[0021] like Figure 1 、 Figure 2As shown, an automated dust suppression system for commercial coal includes a mixing drum 1, a dust suppression solution tank 2, a spray pipeline 3, and a controller. The mixing drum 1 is provided with a dust suppressant feed port and a water inlet. The mixing drum 1 uses a built-in mixer to mix the dust suppressant and clean water into a dust suppression mixed solution. The mixing drum 1 transports the dust suppression mixed solution to the dust suppression solution tank 2 via a built-in submersible pump. A pressure pump 2.2 is provided on the second liquid outlet pipeline 2.1 of the dust suppression solution tank 2. The second liquid outlet pipeline 2.1 is connected to the spray pipeline 3. The spray end of the spray pipeline 3 is provided with a solenoid valve 3.1 and a spray head 3.2. The controller is used to connect to the electronic control components of the automated dust suppression system for commercial coal. The electronic control components in this application include electric gate valves, liquid level gauges, solenoid valves, infrared sensors, mixing motors, pressure pumps, submersible pumps, etc.

[0022] Specifically, clean water from the clean water tank is first injected into the mixing barrel, and the dust suppressant in the mixing barrel and the clean water are prepared into a dust suppression mixed solution in a certain proportion. The dust suppression mixed solution is transported to the dust suppression solution tank by a submersible pump. Under the action of the pressure pump, the dust suppression solution is delivered to the spray pipeline 3 along the second liquid outlet pipeline 2.1 for spraying dust suppression operation.

[0023] In this embodiment, the clean water tank 4 is connected to a water inlet pipe 4.1, a water outlet pipe 4.2, a first sewage pipe 4.3, and a first overflow pipe 4.4. A first liquid level gauge 4.5 is built into the clean water tank 4. The first electric gate valve 4.6 on the water inlet pipe 4.1 is electrically connected to the first liquid level gauge 4.5. The ends of the first sewage pipe 4.3 and the first overflow pipe 4.4 share a common pipe section. A first manual gate valve 4.7 is provided on the first sewage pipe 4.3 and is located at the front end of the connection point between the first sewage pipe 4.3 and the first overflow pipe 4.4.

[0024] The first level gauge in the clean water tank is set to monitor between 0.2 and 1.5 meters. When the water level in the tank falls below 0.2 meters, the first electric gate valve on the clean water inlet pipe automatically opens, injecting clean water into the tank. When the water level in the tank rises to 1.5 meters, the first electric gate valve automatically closes, stopping the injection of water into the tank. To prevent the first electric gate valve from losing control, a first overflow pipe is installed to automatically overflow the clean water. To facilitate tank maintenance, a first sewage pipe is installed at the lower edge of the tank to facilitate the removal of settled sewage during maintenance. To achieve both practicality and job standardization of the pipeline, the first overflow pipe and a section of the first sewage pipe are shared. A manual gate valve is installed before the intersection of the pipes to ensure that sewage discharge and overflow are not affected.

[0025] The mixing drum 1 is connected to the clean water tank 4 via the outlet pipe 4.2. The mixing drum 1 is connected to the dust suppression solution tank 2 via the first outlet pipe 1.1 and the return pipe 1.2. A filter 1.3 is installed on the first outlet pipe 1.1. A second level gauge 1.4 is built into the mixing drum 1. A second electric gate valve 1.5 on the outlet pipe 4.2 is electrically connected to the second level gauge 1.4. The mixing drum utilizes a one-in-one standby operation strategy, with two mixers and two submersible pumps to ensure uninterrupted dust suppression operations. Dust suppressant and clean water are mixed in a mixer at a ratio of 1:6 to form a dust suppression mixture. A second level gauge is installed in the mixing drum, with a monitoring range set to 0.2 to 1.5 meters. Under manual monitoring, dust suppressant is added manually through the feed port. The liquid is mixed evenly within 15 minutes and then transferred to the solution storage tank.

[0026] The dust suppression solution tank 2 is also connected to a second overflow pipe 2.3 and a second sewage pipe 2.4. The ends of the second overflow pipe 2.3 and the second sewage pipe 2.4 are connected to the return liquid pipe 1.2. A second manual gate valve 2.5 is provided on the second sewage pipe 2.4 and the second manual gate valve 2.5 is located at the front end of the connection point of the second overflow pipe 2.3 and the second sewage pipe 2.4.

[0027] The dust suppression solution tank is essentially the same as the clean water tank, differing in that its second overflow pipe is connected to the mixing drum. When the solution in the tank exceeds the upper limit, it automatically flows back into the mixing drum. Furthermore, when the tank is cleaned and repaired, the sediment at the bottom of the tank also flows back into the mixing drum. Because dust suppressants are expensive, costing approximately 10,000 yuan per ton, this prevents wasteful discharge of dust suppression solution. The prepared solution is stored in the dust suppression tank. When loading begins, a pressure pump delivers the solution along the second outlet pipe 2.1 to the spray pipe 3 for spraying, where it is then circulated back into the dust suppression tank.

[0028] The second liquid outlet pipeline 2.1 is also provided with a third electric gate valve 2.6, a flow meter 2.7, and a pressure gauge 2.8. A cleaning pipeline 5 is connected between the second liquid outlet pipeline 2.1 and the water outlet pipe 4.2. A fourth electric gate valve 5.1 is provided on the cleaning pipeline 5. The connection point between the cleaning pipeline 5 and the water outlet pipe 4.2 is located between the second electric gate valve 1.5 and the clean water tank 4. The connection point between the cleaning pipeline 5 and the second liquid outlet pipeline 2.1 is located between the pressure pump 2.2 and the dust suppression solution tank 2.

[0029] A fifth electric gate valve 3.3 is provided on the spray pipeline 3. Several spray branch pipes 3.4 are connected to the spray pipeline 3. Each spray branch pipe 3.4 is provided with several spray heads 3.2. The end of the spray pipeline 3 is connected to the circulation pipeline 6. The end of the circulation pipeline 6 is forked, one of which is connected to the second liquid outlet pipeline 2.1, and the other is directly connected to the dust suppression solution tank 2.

[0030] It also includes an infrared start-stop component, which includes an infrared sensor 7 and a solenoid valve 3.1. Two sets of infrared sensors 7 are installed before and after the spraying positions on both sides of the track. The solenoid valve 3.1 is installed on the spray branch pipe 3.4 and is electrically connected to the infrared sensor 7. Figure 2 As shown, the spraying dust suppression operation on the roof is completely automated.

[0031] Working process: Two sets of infrared sensors are installed before and after the spraying positions on both sides of the track. When the dispatching winch starts and moves forward and the vehicle moves to the designated position, the first set of infrared sensors is interrupted, the solenoid valve at the front end of the sprinkler head opens, and the sprinkler head sprays dust suppressant; the second set of infrared sensors is turned on, and the solenoid valve closes to stop the spraying operation.

[0032] The dust suppression spray system operates stably and reliably. The implementation of an automated solution reduces manual labor, enabling unmanned operation and meeting the dust suppression and environmental protection requirements for railway loading and transportation. By properly setting the spraying time, the moisture index of commercial coal is maintained within the specified range, thus avoiding material waste and coal quality loss during transportation.

[0033] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automatic dust suppression system for commercial coal, characterized by: The invention comprises a mixing barrel (1), a dust suppression solution tank (2), a spray pipeline (3) and a controller; the mixing barrel (1) is provided with a dust suppressant feed port and a water inlet end; the mixing barrel (1) mixes the dust suppressant and clean water into a dust suppression mixed solution through a built-in stirrer; the mixing barrel (1) transports the dust suppression mixed solution to the dust suppression solution tank (2) through a built-in submersible pump; a pressure pump (2.2) is provided on the second liquid outlet pipeline (2.1) of the dust suppression solution tank (2); the second liquid outlet pipeline (2.1) is connected to the spray pipeline (3); the spray end of the spray pipeline (3) is provided with a solenoid valve (3.1) and a spray head (3.2); the controller is used to connect with the electronic control device of the commercial coal automatic dust suppression system.

2. The commercial coal automatic dust suppression system according to claim 1, characterized in that: The invention also comprises a clean water tank (4), to which a water filling pipe (4.1), a water outlet pipe (4.2), a first sewage pipe (4.3) and a first overflow pipe (4.4) are connected; a first liquid level gauge (4.5) is built into the clean water tank (4); a first electric gate valve (4.6) at the water filling pipe (4.1) is electrically connected to the first liquid level gauge (4.5); the ends of the first sewage pipe (4.3) and the first overflow pipe (4.4) share a pipe section; a first manual gate valve (4.7) is provided on the first sewage pipe (4.3), and the first manual gate valve (4.7) is located at the front end of the connection point between the first sewage pipe (4.3) and the first overflow pipe (4.4).

3. The automatic dust suppression system for commercial coal according to claim 2, characterized in that: The mixing barrel (1) and the clean water tank (4) are connected via a water outlet pipe (4.2), the mixing barrel (1) is connected to the dust suppression solution tank (2) via a first liquid outlet pipe (1.1) and a liquid return pipe (1.2), a filter (1.3) is provided on the first liquid outlet pipe (1.1), a second liquid level gauge (1.4) is built into the mixing barrel (1), and a second electric gate valve (1.5) at the water outlet pipe (4.2) is electrically connected to the second liquid level gauge (1.4).

4. The commercial coal automatic dust suppression system according to claim 3, characterized in that: The dust suppression solution tank (2) is also connected to a second overflow pipe (2.3) and a second sewage pipe (2.4). The ends of the second overflow pipe (2.3) and the second sewage pipe (2.4) are connected and then connected to the return liquid pipe (1.2). A second manual gate valve (2.5) is provided on the second sewage pipe (2.4), and the second manual gate valve (2.5) is located at the front end of the connection point between the second overflow pipe (2.3) and the second sewage pipe (2.4).

5. The commercial coal automatic dust suppression system according to claim 4, characterized in that: The second liquid outlet pipeline (2.1) is also provided with a third electric gate valve (2.6), a flow meter (2.7), and a pressure gauge (2.8). A cleaning pipeline (5) is connected between the second liquid outlet pipeline (2.1) and the water outlet pipe (4.2). A fourth electric gate valve (5.1) is provided on the cleaning pipeline (5). The connection point between the cleaning pipeline (5) and the water outlet pipe (4.2) is located between the second electric gate valve (1.5) and the clean water tank (4). The connection point between the cleaning pipeline (5) and the second liquid outlet pipeline (2.1) is located between the pressure pump (2.2) and the dust suppression solution tank (2).

6. The commercial coal automatic dust suppression system according to claim 5, characterized in that: A fifth electric gate valve (3.3) is provided on the spray pipeline (3), a plurality of spray branch pipes (3.4) are connected to the spray pipeline (3), and a plurality of spray heads (3.2) are provided on each spray branch pipe (3.4). The end of the spray pipeline (3) is connected to a circulation pipeline (6), and the end of the circulation pipeline (6) is bifurcated, one of which is connected to the second liquid outlet pipeline (2.1) and is provided with a sixth electric gate valve (6.1), and the other is directly connected to the dust suppression solution tank (2).

7. The commercial coal automatic dust suppression system according to claim 6, characterized in that: The system also includes an infrared start-stop component, which includes an infrared sensor (7) and a solenoid valve (3.1). Two groups of infrared sensors (7) are installed before and after the spraying positions on both sides of the track. The solenoid valve (3.1) is installed on the spray branch pipe (3.4) and is electrically connected to the infrared sensor (7).

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