Pneumatic inhibition pump for coal mine

Abstract

The utility model relates to the field of coal mine equipment, and discloses a coal mine pneumatic inhibition pump which comprises an installation frame, a pneumatic motor is fixedly installed in the installation frame, the output end of the pneumatic motor is fixedly connected with the input end of a reduction gearbox, and the output end of the reduction gearbox is fixedly connected with one end of a hydraulic pump. According to the structure, the pneumatic motor driven in a pneumatic mode is adopted for conveying the stopping agent, and the stopping agent conveying device is safer and more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of equipment for coal mines, specifically a pneumatic resistance pump for coal mines. Background Technology

[0002] Currently, during coal mine mining operations, to prevent spontaneous combustion of coal in the goaf and subsequent fires, we generally use electric inhibitor pumps to inject inhibitor solutions into the goaf, forming an aerosol that falls onto the surface of the loose coal, creating a protective film and effectively preventing spontaneous combustion. However, the excessive use of electromechanical equipment in coal mines has certain drawbacks. Electric inhibitor pumps are powered by motors, which can easily lead to electromechanical accidents. While some methods use motor-driven hydraulic pump heads, these are bulky and heavy, inconvenient to move in the confined underground space, have complex wiring, require high levels of explosion-proof protection, and involve complicated preparation. Therefore, this application proposes a pneumatic inhibitor pump for coal mines to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a pneumatic resistance pump for coal mines to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic resistance pump for coal mines, including a mounting frame, in which a pneumatic motor is fixedly installed, and the output end of the pneumatic motor is fixedly connected to the input end of a gearbox, the output end of the gearbox is fixedly connected to one end of a hydraulic pump, and an outlet pipe and an inlet pipe are provided on one side of the hydraulic pump.

[0005] Preferably, a pressure regulating valve is also provided on one side of the hydraulic pump, and the pressure regulating valve is connected to the outlet pipe and the inlet pipe respectively.

[0006] Preferably, an air inlet is fixedly connected to one side of the pneumatic motor.

[0007] Preferably, handles are symmetrically installed on both sides of the top of the mounting bracket.

[0008] Preferably, the hydraulic pump is made of corrosion-resistant material.

[0009] Preferably, the liquid inlet pipe is connected to one end of the inhibitor storage tank, and the air inlet is connected to one end of an external air source.

[0010] Compared with the prior art, the advantages of this utility model are as follows:

[0011] This invention connects the air inlet of one end of a pneumatic motor to an external air source, thereby converting the pressure of compressed air into rotational mechanical energy. The reduced speed of the gearbox drives a hydraulic pump to deliver the inhibitor from the inlet pipe to the designated location via the outlet pipe. The delivery pressure is regulated by a pressure regulating valve. The hydraulic pump, made of corrosion-resistant material, solves the corrosion problem of pistons and cylinders caused by alkaline inhibitor pumps, resulting in a longer service life. It requires no electricity; simply connecting an air source is sufficient for inhibitor spraying. Given the high explosion-proof requirements in underground coal mines, this pneumatic system eliminates electric arcs and sparks, ensuring safety and explosion protection. A handle is provided at the top of the mounting frame for easy transport and carrying, making it more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure and appearance of this utility model.

[0014] In the diagram: 1. Mounting bracket; 2. Pneumatic motor; 3. Gearbox; 4. Hydraulic pump; 5. Liquid outlet pipe; 6. Liquid inlet pipe; 7. Air inlet; 8. Pressure regulating valve; 9. Handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example

[0017] Please see Figures 1-2 The diagram shows a pneumatic resistance pump for coal mines, including a mounting frame 1. A pneumatic motor 2 is fixedly installed inside the mounting frame 1, and the output end of the pneumatic motor 2 is fixedly connected to the input end of the gearbox 3. The output end of the gearbox 3 is fixedly connected to one end of a hydraulic pump 4, and the hydraulic pump 4 is provided with an outlet pipe 5 and an inlet pipe 6 on one side.

[0018] In this embodiment, a pressure regulating valve 8 is also provided on one side of the hydraulic pump 4, and the pressure regulating valve 8 is connected to the outlet pipe 5 and the inlet pipe 6 respectively. An air inlet 7 is fixedly connected to one side of the pneumatic motor 2. Handles 9 are symmetrically installed on both sides of the top of the mounting bracket 1. The hydraulic pump 4 is made of corrosion-resistant material. The inlet pipe 6 is connected to one end of the inhibitor storage tank, and the air inlet 7 is connected to one end of the external air source.

[0019] Furthermore, the air inlet 7 at one end of the pneumatic motor 2 is connected to an external air source, thereby converting the pressure of compressed air into rotational mechanical energy. Under the deceleration of the gearbox 3, the hydraulic pump 4 drives the inhibitor at one end of the liquid inlet pipe 6 to be delivered to the designated position through the liquid outlet pipe 5. The delivery pressure is regulated by the pressure regulating valve 8. The hydraulic pump 4 is made of corrosion-resistant material, which can solve the problem of corrosion of piston and cylinder by alkaline inhibitor pumps, and has a longer service life. It does not require electricity and can carry out inhibitor spraying operation only when the air source is connected. Coal mines have high explosion-proof requirements. The pneumatic form has no electric arc or sparks, and is safe and explosion-proof. A handle 9 is set at the top of the mounting frame 1 to facilitate the transfer and carrying of the mounting frame 1, making it more convenient.

[0020] The working principle of this utility model is as follows: The air inlet 7 at one end of the pneumatic motor 2 is connected to an external air source, thereby converting the pressure of compressed air into rotational mechanical energy. Under the deceleration of the reduction gearbox 3, the hydraulic pump 4 drives the inhibitor at one end of the liquid inlet pipe 6 to be delivered to the designated position through the liquid outlet pipe 5. The delivery pressure is regulated by the pressure regulating valve 8. The hydraulic pump 4 is made of corrosion-resistant material, which can solve the problem of corrosion of piston and cylinder by alkaline inhibitor pumps, and has a longer service life. It does not require electricity and can carry out inhibitor spraying operation only when the air source is connected. Coal mines have high explosion-proof requirements. The pneumatic form has no electric arc or sparks, and is safe and explosion-proof. A handle 9 is set at the top of the mounting frame 1 to facilitate the transfer and carrying of the mounting frame 1, making it more convenient.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] 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. A pneumatic resistance pump for coal mines, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is fixedly installed with a pneumatic motor (2), and the output end of the pneumatic motor (2) is fixedly connected to the input end of the gearbox (3). The output end of the gearbox (3) is fixedly connected to one end of the hydraulic pump (4), and the hydraulic pump (4) is provided with an outlet pipe (5) and an inlet pipe (6) on one side.

2. The pneumatic resistance pump for coal mines according to claim 1, characterized in that: The hydraulic pump (4) is also equipped with a pressure regulating valve (8) on one side, and the pressure regulating valve (8) is connected to the outlet pipe (5) and the inlet pipe (6) on one side.

3. A pneumatic resistance pump for coal mines according to claim 2, characterized in that: The pneumatic motor (2) has an air inlet (7) fixedly connected to one side.

4. A pneumatic resistance pump for coal mines according to claim 3, characterized in that: The mounting bracket (1) has handles (9) symmetrically installed on both sides of its top end.

5. A pneumatic resistance pump for coal mines according to claim 4, characterized in that: The hydraulic pump (4) is made of corrosion-resistant material.

6. A pneumatic resistance pump for coal mines according to claim 5, characterized in that: The liquid inlet pipe (6) is connected to one end of the inhibitor storage tank, and the air inlet (7) is connected to one end of the external air source.

Images