Automatic coal washing spray device

Abstract

This utility model discloses an automated spray device for coal washing, relating to the field of spray dust suppression technology. It includes a control box electrically connected to multiple dust sensors and a pump body. The sensors are arranged in a matrix on the top side of the coal washing equipment. The pump body is connected to the middle of multiple branch pipes via a water supply pipe, and the branch pipes are arranged in parallel. The multiple dust sensors are distributed in a matrix on the top side of the coal washing equipment and are correspondingly positioned at the center of each square dust suppression space, enabling real-time zoned monitoring of dust concentration and precise location of dust source areas. The atomizing nozzles are linked to the dust sensors, and each square dust suppression space has an independently controlled atomizing nozzle group on both sides, belonging to the same control module as the corresponding dust sensor. This achieves precise closed-loop control of "single-zone sensing - single-zone spraying," activating the atomizing nozzles only in areas with excessive dust levels, ensuring precise dust suppression and avoiding ineffective spraying in dust-free areas.

Description

Technical Field

[0001] This utility model relates to the field of spray dust suppression technology, specifically an automated spray device for coal washing. Background Technology

[0002] In coal washing processes (such as crushing, screening, belt conveyor, and material feeding), the intense collisions and friction of coal particles generate a large amount of suspended dust. This dust not only pollutes the working environment, leading to accelerated equipment wear and reduced visibility, but also seriously endangers workers' health (inducing occupational diseases such as pneumoconiosis) and poses a potential safety risk of coal dust explosion.

[0003] In the existing technology, dust suppression is carried out by manual fixed-point spraying, fixed water mist nozzles, or simple timed spraying systems. These methods have the problems that traditional devices cannot monitor changes in dust concentration in real time, the spraying action is out of sync with the amount of dust generated, and the spraying range cannot be dynamically adjusted according to the dust distribution, making it impossible to achieve precise dust suppression operations at fixed points, resulting in low dust suppression efficiency. Therefore, this application proposes an automated spraying device for coal washing to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automated coal washing spray device, which solves the technical problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automated coal washing spray device, including a control box, which is electrically connected to multiple dust sensors and a pump body. The multiple sensors are arranged in a matrix on the top side of the coal washing equipment. The pump body is connected to the middle of multiple diversion pipes through a water supply pipe. The multiple diversion pipes are arranged in parallel and form multiple square dust suppression spaces between the multiple diversion pipes and the water supply pipe. The multiple dust sensors are arranged one-to-one at the center of the multiple square spaces. Each square dust suppression space has a set of atomizing nozzles on both sides. The two sets of atomizing nozzles on both sides are respectively installed on spray seats on both sides, and the spray seats are correspondingly installed on the diversion pipes.

[0008] Preferably, the number of atomizing nozzles in a group is three or more, and the nozzles of the two atomizing nozzles located on the side are tilted outwards.

[0009] Preferably, each of the square dust collection spaces corresponds to a dust sensor and two sets of atomizing nozzles belonging to the same control module.

[0010] Preferably, mounting seats are provided on both the shunt pipe and the spray seat, and the shunt pipe and the spray seat are installed above the coal washing equipment through the mounting seats.

[0011] Preferably, the dust sensor is a laser dust sensor or an infrared dust sensor.

[0012] Preferably, the sensor is installed on the top side of the coal washing equipment but not close to the top building position, and the distance between the sensor and the coal washing equipment does not exceed two meters.

[0013] (III) Beneficial effects

[0014] The beneficial effects of the present utility model are as follows:

[0015] For this kind of automatic coal washing spray device, multiple dust sensors are distributed in a matrix form on the top side of the coal washing equipment and are respectively arranged at the center of each square dust-removing space, realizing real-time zonal monitoring of the dust concentration, accurately positioning the dust source area, and the linkage control between the atomizing nozzles and the dust sensors. Moreover, atomizing nozzle groups independently controlled are arranged on both sides of each square dust-removing space and belong to the same control module as the corresponding dust sensors, realizing the accurate closed-loop control of "single-zone perception - single-zone spraying", starting the atomizing nozzles for spraying only in the area where the dust exceeds the standard, and performing dust-removing operations with fixed-point accuracy, avoiding ineffective spraying in the dust-free area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0017] Figure 2 is a schematic diagram of the square dust-removing area of the present utility model;

[0018] Figure 3 is a schematic diagram of the shunt pipe structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the atomizing nozzle structure of the present utility model.

[0020] In the figure: 1 control box, 2 sensor, 3 pump body, 4 water supply pipe, 5 shunt pipe, 6 square dust-removing space, 7 spray seat, 8 atomizing nozzle, 9 mounting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figure 1-4As shown, this utility model provides a technical solution: an automated coal washing spray device, including a control box 1. The control box 1 is electrically connected to multiple dust sensors 2 and a pump body 3, i.e., connected by wires. The dust sensors 2 are laser dust sensors or infrared dust sensors, and the multiple sensors 2 are distributed in a matrix on the top side of the coal washing equipment. The pump body 3 is connected to the middle of multiple diversion pipes 5 through a water supply pipe 4. The pump body 3 will only start to supply water through the water supply pipe 4 and the diversion pipes 5 when the atomizing nozzles 8 need to spray water. The diversion pipes 5 are distributed in parallel, and multiple square dust collection spaces 6 are formed between the multiple diversion pipes 5 and the water supply pipe 4. Multiple dust sensors 2 are correspondingly positioned at the center of each square dust collection space 6. Each square dust collection space 6 has a set of atomizing nozzles 8 on both sides, and the two sets of atomizing nozzles 8 on each side are respectively mounted on spray seats 7 on both sides. The spray seats 7 are correspondingly mounted on the diversion pipes 5. Each set of atomizing nozzles 8 has three or more nozzles, and the nozzles of the two atomizing nozzles 8 located on the sides are angled outwards. Each square dust suppression space 6 has a dust sensor 2 and two sets of atomizing nozzles 8 belonging to the same control module. Each dust sensor 2 independently collects dust concentration data within its square dust suppression space 6 using laser / infrared detection technology, and the concentration data is transmitted to the control box 1 in real time. The built-in control module performs zone analysis, with each module corresponding to one sensor and two sets of nozzles. The control box 1 compares the concentration data of each zone with a preset threshold. If the concentration of a certain square dust suppression space 6 exceeds the threshold, a spray command is sent to the corresponding control module. The solenoid valves corresponding to the atomizing nozzles 8 on both sides of the square dust suppression space 6 are activated simultaneously, spraying fine water mist. Each group of ≥3 nozzles performs dust suppression. During the spraying process, the dust sensor 2 continuously monitors the concentration change. When the concentration drops below the safe threshold, the control box 1 immediately closes the solenoid valve corresponding to the atomizing nozzle 8 in the corresponding zone, achieving dust suppression when it stops. This achieves precise closed-loop control of "single-zone perception - single-zone spraying", enabling the atomizing nozzles 6 to spray only in areas with excessive dust, achieving precise dust suppression operations at fixed points and avoiding ineffective spraying in dust-free areas.

[0023] Both the diversion pipe 5 and the spray seat 7 are equipped with mounting bases 9, which are used to install the diversion pipe 5 and the spray seat 7 above the coal washing equipment. The sensor 2 is installed on the top side of the coal washing equipment but not near the top building, and the distance between the sensor 2 and the coal washing equipment is no more than two meters. By distributing multiple dust sensors 2 in a matrix on the top side of the coal washing equipment at a distance of ≤2 meters from the equipment and avoiding the top building, it is ensured that one sensor 2 is deployed at the center of each square dust suppression space 6. The diversion pipe 5 and the spray seat 7 are fixed above the equipment by the mounting bases 9, so that each square dust suppression space 6 has a set of atomizing nozzles 8 on each side. The nozzles of the side atomizing nozzles 8 are adjusted to tilt outward to expand the coverage area, so as to realize real-time zoned monitoring of dust concentration, accurately locate the dust source area, and link the atomizing nozzles 8 with the dust sensors.

[0024] The operational steps for this application are as follows:

[0025] Each dust sensor 2 independently collects dust concentration data within its respective square dust suppression space 6 using laser / infrared detection technology, and the concentration data is transmitted to the control box 1 in real time. The built-in control module performs zoned analysis, with each module corresponding to one sensor and two sets of nozzles. The control box 1 compares the concentration data of each zone with preset thresholds. If the concentration in a certain square dust suppression space 6 exceeds the threshold, a spray command is sent to the corresponding control module. The solenoid valves corresponding to the atomizing nozzles 8 on both sides of the square dust suppression space 6 are activated simultaneously, spraying out fine water mist. Each set of ≥3 nozzles performs dust suppression. During the spraying process, the dust sensor 2 continuously monitors the concentration change. When the concentration drops below the safe threshold, the control box 1 immediately closes the solenoid valve corresponding to the atomizing nozzle 8 in the corresponding zone, achieving dust suppression upon cessation.

[0026] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated spraying device for coal washing, characterized in that: The equipment includes a control box (1), which is electrically connected to multiple dust sensors (2) and a pump body (3). The multiple sensors (2) are arranged in a matrix on the top side of the coal washing equipment. The pump body (3) is connected to the middle of multiple diversion pipes (5) through a water supply pipe (4). The multiple diversion pipes (5) are arranged in parallel. Multiple square dust suppression spaces (6) are formed between the multiple diversion pipes (5) and the water supply pipe (4). The multiple dust sensors (2) are set in the center of the multiple square dust suppression spaces (6) one by one. Each square dust suppression space (6) has a set of atomizing nozzles (8) on both sides. The two sets of atomizing nozzles (8) on both sides are respectively installed on the spray seats (7) on both sides. The spray seats (7) are correspondingly installed on the diversion pipes (5).

2. The automated spray device for coal washing according to claim 1, characterized in that: The number of atomizing nozzles (8) in a group is three or more, and the nozzles of the two atomizing nozzles (8) located on the side are tilted outward.

3. The automated spray device for coal washing according to claim 2, characterized in that: Each of the square dust collection spaces (6) has a dust sensor (2) and two sets of atomizing nozzles (8) belonging to the same control module.

4. The automated spray device for coal washing according to claim 1, characterized in that: Both the diversion pipe (5) and the spray seat (7) are provided with mounting bases (9), and the diversion pipe (5) and the spray seat (7) are installed above the coal washing equipment through the mounting bases (9).

5. The automated spray device for coal washing according to claim 1, characterized in that: The dust sensor (2) is a laser dust sensor or an infrared dust sensor.

6. The automated spray device for coal washing according to claim 1, characterized in that: The sensor (2) is installed on the top side of the coal washing equipment but not near the top building, and the sensor (2) is no more than two meters away from the coal washing equipment.

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