Pressure swing adsorption nitrogen making machine for coal mine

Abstract

The utility model belongs to the technical field of nitrogen making machines, and discloses a pressure swing adsorption nitrogen making machine for a coal mine, which comprises a filter part and a nitrogen making part for making nitrogen, the air inlet end of the nitrogen making part is connected with the air outlet end of the filter part, the filter part comprises a shell part, a filter plate is arranged in the shell part, and the filter plate is connected with the filter part. A pressure pump is installed at the top of the shell part, the liquid outlet end of the pressure pump is fixedly connected with a spray head, the spray head is arranged in the shell part, a flow guide plate is installed in the shell part and located on the air inlet side of the filter plate, and the spray head is located above the position between the filter plate and the flow guide plate; according to the utility model, a water body is conveyed through the pressure pump and the spray head and is sprayed to the filter plate, and when gas passes through the filter plate, dust in the gas is adsorbed through the filter plate, so that the gas is treated, the device can filter the gas more quickly, the gas treatment difficulty is reduced, and the gas treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of nitrogen making machine, concretely relates to a coal mine pressure swing adsorption nitrogen making machine. BACKGROUND

[0002] In the coal industry, nitrogen is often used to prevent coal dust explosion, mine fire extinguishing and gas replacement. The equipment for preparing nitrogen is nitrogen making machine. However, the existing nitrogen making machine has certain defects when working. For example, in the Chinese patent with the announcement number CN 211366966U, a coal mine pressure swing adsorption nitrogen making machine is disclosed, which comprises a purification device and a nitrogen making device. The purification device comprises an air compressor, an air buffer tank, a filter, a dryer, the air compressor, the air buffer tank, the filter, the dryer and the nitrogen making device are sequentially connected through a gas pipeline. The nitrogen making device comprises a pressure swing adsorber and a nitrogen tank. The inlet of the pressure swing adsorber is connected to the outlet of the filter through a gas pipeline, and the outlet of the pressure swing adsorber is connected to the nitrogen tank through a gas pipeline. The pressure swing adsorber is fixedly connected with a carbon molecular sieve adsorption device. In order to filter the raw gas, a filter structure is provided when the device is used. However, the device only sprays water to adsorb dust in the gas, and the treatment efficiency is low. SUMMARY

[0003] The utility model aims at providing a coal mine pressure swing adsorption nitrogen making machine to solve the problems in the above background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal mine pressure swing adsorption nitrogen making machine, comprising a filter and a nitrogen making device for nitrogen making, the gas inlet end of the nitrogen making device is connected with the gas outlet end of the filter, and the filter comprises a shell part, a filter plate is installed inside the shell part, a pressure pump is installed on the top of the shell part, a spray head is fixedly connected to the liquid outlet end of the pressure pump, the spray head is arranged inside the shell part, a flow guide plate is installed inside the shell part, the flow guide plate is on the gas inlet side of the filter plate, and the spray head is above the filter plate and the flow guide plate.

[0005] Preferably, a movable scraper is also installed inside the shell part, one side of the scraper is in contact with the gas inlet side of the filter plate, an electric push rod is fixedly connected to the top of the shell part, and the telescopic end of the electric push rod is fixedly connected to the top of the scraper.

[0006] Preferably, the shell part comprises an outer shell, an air inlet pipe is fixedly connected to one side of the outer shell, an air outlet pipe is fixedly connected to the other side of the outer shell, a blowdown pipe is fixedly connected to the bottom of the outer shell, and a valve is installed on the blowdown pipe.

[0007] Preferably, the shell forms a flow guide slope inside, and the horizontal height of one side of the flow guide slope close to the air inlet pipe is lower than that of the other side.

[0008] Preferably, the nitrogen making part comprises an air compressor, the air outlet end of the air compressor is connected with an air buffer tank, the air outlet end of the air buffer tank is connected with a filter, the air outlet end of the filter is connected with a dryer, and the air outlet end of the dryer is connected with a pressure swing adsorber.

[0009] Preferably, the nitrogen making part further comprises a shell, one side of the shell is open to form a cavity, a cabinet door for shielding the cavity is rotationally connected to one side of the shell, and a bottom foot is fixedly connected to the bottom of the shell.

[0010] Compared with the prior art, the device has the following beneficial effects:

[0011] (1) The device can quickly complete the filtration and treatment of the gas, reduce the difficulty of gas treatment, and improve the gas treatment efficiency.

[0012] (2) When the filter plate filters the gas, the scraper is moved by the electric push rod to scrape the air inlet side of the filter plate, thereby cleaning the air inlet side of the filter plate, allowing the dirt attached to the air inlet side of the filter plate to be scraped off, allowing the filter plate to continuously filter the gas, further reducing the difficulty of filtering the gas, and further improving the gas treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of the device;

[0014] Figure 2 is a second perspective view of the device;

[0015] Figure 3 is a third perspective view of the device;

[0016] Figure 4 is an internal structure diagram of the nitrogen making part of the device;

[0017] Figure 5 is a sectional view of the filter part of the device;

[0018] In the drawings: 1, nitrogen making part; 11, bottom foot; 12, shell; 13, air compressor; 14, air buffer tank; 15, filter; 16, dryer; 17, pressure swing adsorber; 18, cabinet door; 2, filter part; 21, shell; 22, air inlet pipe; 23, air outlet pipe; 24, pressure pump; 25, spray head; 26, filter plate; 27, electric push rod; 28, scraper; 29, flow guide plate; 210, blowdown pipe. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Please refer to Figures 1-5 The present application provides the following technical solutions:

[0021] The coal mine pressure swing adsorption nitrogen generator comprises a filter 2 and a nitrogen generator 1 for generating nitrogen, the gas inlet end of the nitrogen generator 1 is connected with the gas outlet end of the filter 2, the filter 2 comprises a shell part, a filter plate 26 is installed inside the shell part, a pressurizing pump 24 is installed on the top of the shell part, a nozzle 25 is fixedly connected to the liquid outlet end of the pressurizing pump 24, the nozzle 25 is arranged inside the shell part, a flow guide plate 29 is installed inside the shell part, the flow guide plate 29 is located on the gas inlet side of the filter plate 26, and the nozzle 25 is located above the filter plate 26 and the flow guide plate 29.

[0022] Through the above technical solution, when the personnel need to generate nitrogen, the pipeline conveying water is connected with the liquid inlet end of the pressurizing pump 24, the nitrogen generator 1 works, so that the filter 2 is in negative pressure, and then the filter 2 absorbs the external gas, when the external gas enters the inside of the filter 2, the pressurizing pump 24 works to extract the water and convey the water to the nozzle 25, the water is sprayed out through the nozzle 25, and the water continuously flows to the gas inlet side of the filter plate 26 through the cooperation of the flow guide plate 29, when the external gas enters the shell part, the dust is adsorbed by the water on the filter plate 26, the gas passes through the filter plate 26 and is sucked into the nitrogen generator 1, the nitrogen is generated through the nitrogen generator 1, and the nitrogen generation work is completed.

[0023] In addition, in the present application, in order to further clean the filter plate 26, as shown in Figures 1-3 and Figure 5 A movable scraper 28 is further installed inside the shell part, one side of the scraper 28 is in contact with the gas inlet side of the filter plate 26, an electric push rod 27 is fixedly connected to the top of the shell part, and the telescopic end of the electric push rod 27 is fixedly connected to the top of the scraper 28.

[0024] In the present embodiment, when the device filters the gas through the filter plate 26, the electric push rod 27 works to drive the scraper 28 to move, the gas inlet side of the filter plate 26 is reciprocally scraped by the scraper 28, so that the dirt attached to the gas inlet side of the filter plate 26 is cleaned, and the filter plate 26 is cleaned more completely.

[0025] Specifically, in one embodiment, regarding the above-mentioned housing portion:

[0026] like Figures 1-4 As shown, the shell part includes an outer shell 21, an air inlet pipe 22 is fixedly connected to one side of the outer shell 21, and an air outlet pipe 23 is fixedly connected to the other side. A sewage pipe 210 is fixedly connected to the bottom of the outer shell 21, and a valve is installed on the sewage pipe 210.

[0027] In this embodiment, the nitrogen generator 1 operates to create a negative pressure in the housing 21, causing external gas to be sucked in through the air inlet pipe 22. After the gas enters the housing 21 through the air inlet pipe 22, it is filtered by the filter plate 26 and discharged through the air outlet pipe 23. After the dirt is cleaned, the valve is opened to discharge the mixture of water and dust through the sewage pipe 210.

[0028] When the housing 21 needs to discharge a mixture of water and dirt, in order to improve the discharge efficiency, as shown in FIG. Figure 5 As shown, a guide slope is formed inside the housing 21, and the level of the guide slope on one side close to the air inlet pipe 22 is lower than the level of the other side.

[0029] Specifically, in one embodiment, regarding the nitrogen generating component 1:

[0030] like Figures 1-4 As shown, the nitrogen generating unit 1 includes an air compressor 13 , the outlet end of the air compressor 13 is connected to an air buffer tank 14 , the outlet end of the air buffer tank 14 is connected to a filter 15 , the outlet end of the filter 15 is connected to a dryer 16 , and the outlet end of the dryer 16 is connected to a pressure swing adsorber 17 .

[0031] In this embodiment, when nitrogen production is required, the air compressor 13 is operated, and the air buffer tank 14, the filter 15, the dryer 16 and the pressure swing adsorber 17 cooperate to produce nitrogen, and the nitrogen is discharged through the outlet end of the pressure swing adsorber 17.

[0032] In addition, in the present invention, Figures 3-4 As shown, the technical solution of the nitrogen generator 1 is further refined. The nitrogen generator 1 also includes a shell 12, one side of the shell 12 is open to form a cavity, one side of the shell 12 is rotatably connected to a cabinet door 18 for shielding the cavity, and the bottom of the shell 12 is fixedly connected to a base 11.

[0033] In this embodiment, the air compressor 13 , the air buffer tank 14 , the filter 15 , the dryer 16 , and the pressure swing adsorber 17 are protected by the housing 12 , and the housing 12 is supported by the base 11 .

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure swing adsorption nitrogen generator for coal mines, characterized in that: The application relates to a filter (2) and a nitrogen generator (1) for generating nitrogen, the air inlet end of the nitrogen generator (1) is connected with the air outlet end of the filter (2), the filter (2) comprises a shell part, a filter plate (26) is arranged in the shell part, a pressurizing pump (24) is arranged at the top of the shell part, the liquid outlet end of the pressurizing pump (24) is fixedly connected with a spray head (25), the spray head (25) is arranged in the shell part, a flow guide plate (29) is arranged in the shell part, the flow guide plate (29) is arranged at the air inlet side of the filter plate (26), and the spray head (25) is arranged above the filter plate (26) and the flow guide plate (29).

2. The coal mine pressure swing adsorption nitrogen generator according to claim 1, characterized in that: A movable scraper (28) is arranged in the shell part, one side of the scraper (28) is in contact with the air inlet side of the filter plate (26), the top of the shell part is fixedly connected with an electric push rod (27), and the telescopic end of the electric push rod (27) is fixedly connected with the top of the scraper (28).

3. The coal mine pressure swing adsorption nitrogen generator according to claim 1, characterized in that: The shell part comprises an outer shell (21), one side of the outer shell (21) is fixedly connected with an air inlet pipe (22), the other side of the outer shell (21) is fixedly connected with an air outlet pipe (23), the bottom of the outer shell (21) is fixedly connected with a blowdown pipe (210), and a valve is arranged on the blowdown pipe (210).

4. The coal mine pressure swing adsorption nitrogen generator according to claim 3, characterized in that: A flow guide slope is arranged in the outer shell (21), and the horizontal height of the flow guide slope near the air inlet pipe (22) is lower than that of the other side.

5. The coal mine pressure swing adsorption nitrogen generator according to claim 1, characterized in that: The nitrogen generator (1) comprises an air compressor (13), the air outlet end of the air compressor (13) is connected with an air buffer tank (14), the air outlet end of the air buffer tank (14) is connected with a filter (15), the air outlet end of the filter (15) is connected with a drying machine (16), and the air outlet end of the drying machine (16) is connected with a pressure swing adsorption device (17).

6. The coal mine pressure swing adsorption nitrogen generator according to claim 5, characterized in that: The nitrogen generator (1) further comprises a shell (12), one side of the shell (12) is open to form a cavity, a cabinet door (18) for shielding the cavity is rotatably connected to one side of the shell (12), and the bottom of the shell (12) is fixedly connected with a bottom foot (11).

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