Water quantity readjusting device suitable for spraying system of coal mining machine

Abstract

The utility model belongs to the field of spray cooling systems of coal mining machines, and particularly relates to a water quantity readjusting device suitable for a spray system of a coal mining machine. Comprising a water distribution cavity, the water distribution cavity is provided with a water inlet and a plurality of water outlets, the water inlet of the water distribution cavity is connected with a water supply pipe of a spraying system of the coal mining machine, the water outlets of the water distribution cavity are connected with all water using positions of the coal mining machine through water conveying pipes respectively, and adjusting valves are independently installed on the water outlets of the water distribution cavity respectively. A safety water valve is mounted on a water inlet of the water distribution cavity; according to the water quantity readjusting device suitable for the spraying system of the coal mining machine provided by the utility model, water conveying pipes at all water using positions of the coal mining machine are connected into the water distribution cavity, and the adjusting valves are additionally arranged at the joints so as to ensure that the water quantity change can be adjusted according to field conditions, so that enough atomizing and cooling effects are ensured; atomization and cooling are achieved after water is supplied to the main pipeline, the water supply amount is more reasonable, and water resources are used and utilized efficiently.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machine spray cooling system, specifically relating to a water volume readjustment device suitable for coal mining machine spray system. Background Technology

[0002] During normal production at a fully mechanized mining face, the coal dust on the upward drum side of the coal mining machine is very large, resulting in a high water demand. However, the coal dust on the downward drum side is smaller. Since the spray system of the coal mining machine supplies water to both the upward and downward drum sides equally, this results in insufficient water spraying on the upward drum side and wasted water spraying on the downward drum side. Therefore, the water distribution of the spray system to the upward and downward drum sides needs to be adjusted during coal cutting. Furthermore, there is a significant difference in the load on the front and rear cutting motors of the coal mining machine. The cutting motor with a larger load requires more cooling water, while the cutting motor with a smaller load requires less cooling water.

[0003] Currently, the spray system is controlled by a single safety water valve, which supplies water to the front and rear cutting motors, the upper drum side, and the lower drum side. When cutting coal, the safety water valve is opened, activating the cooling water supply to the front and rear cutting motors, as well as the spray from the upper and lower drum sides. The water flow is balanced and cannot be independently adjusted. This results in low flexibility, poor spraying effect, and water waste. Utility Model Content

[0004] This invention aims to solve the problem that the spray system of current coal mining machines can only deliver water evenly to various water-using locations and cannot adjust according to water demand.

[0005] This utility model provides the following technical solution: a water volume readjustment device for a coal mining machine spray system, comprising a water distribution chamber, the water distribution chamber having a water inlet and multiple water outlets, the water inlet of the water distribution chamber being connected to the water supply pipe of the coal mining machine spray system, the water outlets of the water distribution chamber being connected to various water-using positions of the coal mining machine through water supply pipes, each water outlet of the water distribution chamber being independently equipped with a regulating valve, and a safety water valve being installed on the water inlet of the water distribution chamber.

[0006] Furthermore, it includes a round steel pipe, with end plates welded to both ends of the round steel pipe to seal it, and the internal cavity of the round steel pipe serving as a water distribution cavity.

[0007] Furthermore, an inlet is provided on the end plate at one end of the round steel pipe, an outlet is provided on the end plate at the other end, and the remaining outlets are located on the pipe wall of the round steel pipe.

[0008] Compared with the prior art, the advantages of this utility model are:

[0009] This utility model provides a water volume readjustment device for a coal mining machine spray system. It connects the water supply pipes at each water-using location of the coal mining machine to the distribution water chamber, and installs regulating valves at the joints to ensure that the water volume can be adjusted according to site conditions, guaranteeing sufficient atomization and cooling effects. After the main pipeline supplies water, it achieves a more rational and efficient use of water resources for atomization and cooling functions, maximizing water resource utilization. This not only ensures the cooling and spraying effects of the electromechanical equipment on the coal mining machine but also makes effective use of water, achieving two goals at once. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a water volume readjustment device for a coal mining machine spray system.

[0011] In the diagram: 1-Water distribution chamber; 1.1-Water inlet; 1.2-Water outlet; 2-Water supply pipe; 3-Water delivery pipe; 4-Regulating valve; 5-Safety water valve. Detailed Implementation

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] like Figure 1 The diagram illustrates a water volume readjustment device for a coal mining machine spray system. It includes a water distribution chamber 1 with an inlet 1.1 and multiple outlets 1.2. The inlet 1.1 of the distribution chamber 1 is connected to the water supply pipe 2 of the coal mining machine spray system. The outlets 1.2 of the distribution chamber 1 are connected to various water-using locations on the coal mining machine via water supply pipes 3. Each outlet 1.2 of the distribution chamber 1 is independently equipped with a regulating valve 4, and a safety water valve 5 is installed on the inlet 1.1. By independently installing a regulating valve 4 at each outlet 1.2 of the distribution chamber 1, the limitation of the original spray system, which could only supply water evenly, is completely overcome. Operators can independently and flexibly adjust the water volume delivered to each water-using location (upper drum spray, lower drum spray, front cutting motor cooling, and rear cutting motor cooling) based on the actual coal dust generation on the upper / lower drum side and the real-time load difference between the front and rear cutting motors. Ensure sufficient spraying in high-dust areas to effectively suppress dust diffusion, improve the working environment, and protect worker health and safety; avoid excessive spraying and waste of water resources in unnecessary areas. The cooling water volume can be increased or decreased according to the actual motor load (generally, motors with higher loads generate more heat), ensuring that high-load motors are adequately cooled, extending their service life, while avoiding redundant cooling water supply to low-load motors.

[0014] The system includes a round steel pipe with welded end plates at both ends to seal it. The internal cavity of the round steel pipe serves as a water distribution chamber. An inlet 1.1 is located on the end plate at one end of the round steel pipe, and an outlet 1.2 is located on the end plate at the other end. The remaining outlets 1.2 are located on the pipe wall. This method of using welded end plates on round steel pipes to form the water distribution chamber is structurally robust, has good sealing performance, low manufacturing cost, and is easy to modify or integrate into existing coal mining machine spray systems.

[0015] This invention enables independent and on-demand adjustment of water volume at each water usage location, thereby significantly improving water resource utilization efficiency and enhancing the overall performance of the spray system and the environmental quality of the working surface while ensuring effective dust reduction and motor cooling.

[0016] Both water supply pipe 3 and water delivery pipe 2 are made of rubber hoses, which are easy to bend.

[0017] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water volume readjustment device for a coal mining machine spray system, characterized in that: It includes a water distribution chamber (1), which has an inlet (1.1) and multiple outlets (1.2). The inlet (1.1) of the water distribution chamber (1) is connected to the water supply pipe (2) of the coal mining machine spray system. The outlets (1.2) of the water distribution chamber (1) are connected to the various water-using positions of the coal mining machine through water supply pipes (3). Each outlet (1.2) of the water distribution chamber (1) is independently equipped with a regulating valve (4). A safety water valve (5) is installed on the inlet (1.1) of the water distribution chamber (1).

2. The water quantity readjusting device for a shearer spraying system according to claim 1, characterized in that: It includes a round steel pipe, with welded end plates at both ends of the round steel pipe to seal it, and the internal cavity of the round steel pipe serves as a water distribution cavity (1).

3. The water volume readjusting device for a shearer spraying system according to claim 2, characterized in that: The circular steel pipe has an inlet (1.1) on one end plate and an outlet (1.2) on the other end plate, with the remaining outlets (1.2) located on the pipe wall.

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