Multi-layer purification device for chemical waste gas

Abstract

The utility model relates to the field of chemical waste gas treatment, in particular to a chemical waste gas multi-layer purification device which comprises a bottom frame and a shell, the shell is installed on the upper end face of the bottom frame, an air inlet is formed in the outer side wall of the shell, a first filter screen is arranged on the inner side wall of the shell, and a second filter screen is arranged below the first filter screen. An insertion hole is formed in the bottom in the first filter screen, the insertion column and the insertion hole are connected in a sliding fit mode, a first spring rod is installed at the bottom in the bottom frame, an annular disc is installed on the upper end face of the first spring rod, a bottom column is installed on the upper end face of the annular disc, and the second filter screen is installed on the upper end face of the bottom column; an L-shaped plate is installed at the top in the bottom frame in a sliding fit mode, a cleaning opening is formed in the outer side wall of the shell, the structure of the inserting holes and the cleaning opening is adopted, and therefore the multiple filter screens can be conveniently cleaned, dismounting and cleaning treatment does not need to be conducted, operation is convenient, and mesh holes of the filter screens are effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of chemical waste gas treatment, in particular to a multi-layer purification device for chemical waste gas. Background Art

[0002] Waste gas treatment, also known as waste gas purification, refers to the pretreatment of waste gas generated in industrial sites and factory workshops before it is discharged. General waste gas treatment includes organic waste gas treatment, dust waste gas treatment, acid and alkali waste gas treatment, odor waste gas treatment and air sterilization, disinfection and purification.

[0003] A Chinese patent discloses a multi-layer purification device for chemical waste gas (authorization announcement number CN 217188807U). This patented technology can solve the problem that the existing purification device has poor purification effect, cannot perform multi-layer filtration on chemical waste gas, and cannot meet the current filtration effect, which will affect the external environment for a long time.

[0004] However, the existing filtering device adopts a filter mesh structure. After long-term use, the filter mesh is prone to clogging, resulting in poor filtering effect. It usually needs to be disassembled for cleaning, which is cumbersome. In addition, the activated carbon plate for absorbing toxic gases is prone to lose its effect after long-term use and cannot be disassembled and replaced. Summary of the invention

[0005] In order to solve the above technical problems, the utility model provides a multi-layer purification device for chemical waste gas, including a base frame and a shell, the shell is installed on the upper end surface of the base frame, the air inlet is installed on the outer wall of the shell, the first filter is arranged on the inner wall of the shell, the first filter is a funnel-shaped structure, and the second filter is arranged below the first filter. A plug-in column is installed on the upper end surface of the second filter, and a plug-in hole is provided at the bottom of the first filter. The plug-in column and the plug-in hole are connected by a sliding fit, a first spring rod is installed on the bottom of the base frame, a ring disk is installed on the upper end surface of the first spring rod, a bottom column is installed on the upper end surface of the ring disk, and the second filter is installed on the upper end surface of the bottom column, an L-shaped plate is installed on the top of the base frame by sliding fit, a cleaning port is installed on the outer wall of the shell, and a first valve is installed on the outer wall of the cleaning port.

[0006] Preferably: the inner side wall of the shell is symmetrically provided with fixing grooves, an adjusting spring is installed at the bottom of the fixing groove, a first slider is installed on the upper end surface of the adjusting spring, and a first filter is installed on the inner side end of the first slider.

[0007] Preferably: a cover cavity is installed on the upper end surface of the shell, a plurality of water holes are opened in the bottom of the cover cavity, a water tank is installed on the upper end surface of the cover cavity through a connecting pipe, and a control valve is installed on the outer side wall of the connecting pipe.

[0008] Preferably: an air outlet pipe is installed on the outer side wall of the shell, a fixed cavity is installed at the other end of the air outlet pipe, a cover plate is installed on the upper end surface of the fixed cavity by snap-fitting, a push rod is installed at the bottom of the cover plate, and multiple activated carbon plates are arranged on the outer side wall of the push rod from top to bottom.

[0009] Preferably, the outer side wall of the push rod is a threaded structure, and an activated carbon plate is installed on the outer side wall of the push rod by rotating the thread.

[0010] Preferably: an adjustment groove is symmetrically opened at the top of the top frame, a limit spring is arranged in the adjustment groove, a limit slider is installed at the other end of the limit spring, and an L-shaped plate is installed at the bottom of the limit slider.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model adopts a plug hole and a cleaning port structure, so that multiple filter screens can be easily cleaned without disassembly and cleaning, which is convenient to operate and effectively avoids clogging of the filter screen mesh.

[0013] 2. The utility model adopts a plurality of activated carbon plate structures to ensure the removal effect of toxic substances in chemical waste gas, and adopts a threaded connection method to facilitate the disassembly and replacement of the activated carbon plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the structure of a multi-layer purification device for chemical waste gas provided in an embodiment of the present application;

[0015] Figure 2 This is a sectional front view of a multi-layer purification device for chemical waste gas provided in an embodiment of the present application;

[0016] Figure 3 It is a sectional left view of a multi-layer purification device for chemical waste gas provided in an embodiment of the present application;

[0017] Figure 4 It is a cross-sectional top view of a multi-layer purification device for chemical waste gas provided in an embodiment of the present application;

[0018] Figure 5 It is a partial cross-sectional bottom view of a multi-layer purification device for chemical waste gas provided in an embodiment of the present application;

[0019] In the figure: 1. base frame; 2. shell; 11. air inlet; 12. first filter; 13. second filter; 14. plug column; 15. first spring rod; 16. bottom column; 17. L-shaped plate; 18. cleaning port; 19. adjusting spring; 21. water hole; 22. water tank; 23. fixing chamber; 24. top rod; 25. activated carbon plate; 26. limit spring. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The invention of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The invention is selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various inventions with various modifications suitable for specific purposes.

[0021] See also Figures 1 to 5 In this embodiment, a multi-layer purification device for chemical waste gas is provided, including a base frame 1 and a shell 2, the shell 2 is installed on the upper end surface of the base frame 1, the outer side wall of the shell 2 is installed with an air inlet 11, the inner side wall of the shell 2 is arranged with a first filter screen 12, the first filter screen 12 is a funnel-shaped structure, a second filter screen 13 is arranged below the first filter screen 12, and a plug column 14 is installed on the upper end surface of the second filter screen 13, a plug hole is provided at the bottom of the first filter screen 12, and the plug column 14 is connected to the plug hole by sliding fit, a first spring rod 15 is installed at the bottom of the base frame 1, a ring disk is installed on the upper end surface of the first spring rod 15, a bottom column 16 is installed on the upper end surface of the ring disk, and the second filter screen 13 is installed on the upper end surface of the bottom column 16, an L-shaped plate 17 is installed on the top of the base frame 1 by sliding fit, a cleaning port 18 is installed on the outer side wall of the shell 2, and a first When the valve is working, the exhaust gas enters the cylinder through the air inlet 11, and the exhaust gas is dusted by injecting water. The dust falls into the first filter screen 12 for filtering, and then the second filter screen 13 further filters the fine dust. The water enters the bottom of the cylinder, which is convenient for its recovery and direct reuse. After long-term use, the first filter screen 12 and the second filter screen 13 are prone to dust accumulation and clogging the filter holes, thereby reducing the filtering effect. The L-shaped plate 17 is moved to the outer end, and the first spring rod 15 drives the bottom column 16 to move downward, the second filter screen moves downward, and the plug column 14 is separated from the plug hole. Then water is injected, and the dust on the first filter screen 12 falls onto the second filter screen 13 through the plug hole. The first valve is opened, and the dust is brought out through the cleaning port by the impact of water flow. There is no need to disassemble the shell 2 to remove the first filter screen 12 and the second filter screen 13 for cleaning, and the operation is convenient.

[0022] The inner wall of the shell 2 is symmetrically provided with fixing grooves, an adjusting spring 19 is installed at the bottom of the fixing groove, a first slider is installed on the upper end surface of the adjusting spring 19, and a first filter screen 12 is installed on the inner end of the first slider. When working, the adjusting spring 19 structure is adopted to facilitate the first filter screen 12 to shake up and down, so that dust rolls, thereby preventing dust from clogging the mesh of the first filter screen 12.

[0023] A cover cavity is installed on the upper end surface of the shell 2, and a plurality of water holes 21 are opened at the bottom of the cover cavity. A water tank 22 is installed on the upper end surface of the cover cavity through a connecting pipe, and a control valve is installed on the outer wall of the connecting pipe. When working, the water tank 22 is filled with water, the control valve is opened, and water enters the cover cavity. The water hole 21 structure is adopted to make the water fall evenly into the shell 2, thereby ensuring the dust removal effect on the exhaust gas.

[0024] An air outlet pipe is installed on the outer wall of the shell 2, and a fixed cavity 23 is installed at the other end of the air outlet pipe. A cover plate is installed on the upper end surface of the fixed cavity 23 by means of a clamping method, and a push rod 24 is installed at the bottom of the cover plate. A plurality of activated carbon plates 25 are arranged on the outer wall of the push rod 24 from top to bottom. When working, the exhaust gas enters the fixed cavity 23 through the air outlet pipe, and the activated carbon plates 25 absorb and treat the toxic substances in the exhaust gas.

[0025] The outer wall of the push rod 24 is a threaded structure, and the activated carbon plate 25 is installed on the outer wall of the push rod 24 by rotating the thread. When working, the cover plate is easily disassembled by a clamping method, and the activated carbon plate 25 is easily replaced by a threaded method.

[0026] The top of the top frame is symmetrically provided with adjustment grooves, in which a limit spring 26 is arranged, and a limit slider is installed at the other end of the limit spring 26, and an L-shaped plate 17 is installed at the bottom of the limit slider. When working, the limit spring 26 drives the L-shaped plate 17 to move inward, thereby ensuring the limiting and fixing effect of the bottom column 16.

[0027] During specific operation, water is contained in the water tank 22, the control valve is opened, and the water enters the cover cavity. The water hole 21 structure is adopted to make the water fall evenly into the shell 2 to ensure the dust removal effect of the exhaust gas. The exhaust gas enters the cylinder through the air inlet 11, and the exhaust gas is dust-removed by injecting water. The dust falls into the first filter screen 12 for filtration, and then the second filter screen 13 further filters the fine dust. The water enters the bottom of the cylinder body, which is convenient for its recovery and direct reuse. When the first filter is used for a long time, The net 12 and the second filter screen 13 are prone to dust accumulation and clogging the filter holes, thereby reducing their filtering effect. The L-shaped plate 17 is moved to the outer end, and the first spring rod 15 drives the bottom column 16 to move downward, and the second filter screen moves downward. The plug column 14 is disengaged from the plug hole, and then water is injected. The dust on the first filter screen 12 falls onto the second filter screen 13 through the plug hole. The first valve is opened, and the dust is brought out through the cleaning port by the impact of water flow. There is no need to disassemble the shell 2 to take out the first filter screen 12 and the second filter screen 13 for cleaning, and the operation is convenient.

[0028] Obviously, the invention described is only a part of the invention of the utility model, not the whole invention. Based on the invention in the utility model, all other inventions obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the utility model. The structures, devices and operating methods not specifically described and explained in the utility model shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-layer purification device for chemical waste gas, comprising a base frame (1) and a shell (2), characterized in that: The upper end surface of the base frame (1) is mounted with a shell (2), the outer side wall of the shell (2) is mounted with an air inlet (11), the inner side wall of the shell (2) is arranged with a first filter screen (12), the first filter screen (12) is a funnel-shaped structure, a second filter screen (13) is arranged below the first filter screen (12), an insertion column (14) is mounted on the upper end surface of the second filter screen (13), a plug hole is provided at the inner bottom of the first filter screen (12), the plug column (14) and the plug hole are connected by a sliding fit, a first spring rod (15) is mounted on the inner bottom of the base frame (1), a ring disk is mounted on the upper end surface of the first spring rod (15), a bottom column (16) is mounted on the upper end surface of the ring disk, the second filter screen (13) is mounted on the upper end surface of the bottom column (16), an L-shaped plate (17) is mounted on the inner top of the base frame (1) by a sliding fit, a cleaning port (18) is mounted on the outer side wall of the shell (2), and a first valve is mounted on the outer side wall of the cleaning port (18).

2. A multi-layer purification device for chemical waste gas according to claim 1, characterized in that The inner wall of the shell (2) is symmetrically provided with a fixing groove, an adjusting spring (19) is installed at the bottom of the fixing groove, a first sliding block is installed on the upper end surface of the adjusting spring (19), and a first filter screen (12) is installed on the inner end of the first sliding block.

3. A multi-layer purification device for chemical waste gas according to claim 1, characterized in that: The upper end surface of the shell (2) is provided with a cover cavity, the bottom of the cover cavity is provided with a plurality of water holes (21), the upper end surface of the cover cavity is provided with a water tank (22) via a connecting pipe, and a control valve is provided on the outer side wall of the connecting pipe.

4. A multi-layer purification device for chemical waste gas according to claim 1, characterized in that: An air outlet pipe is installed on the outer wall of the shell (2), a fixed cavity (23) is installed at the other end of the air outlet pipe, a cover plate is installed on the upper end surface of the fixed cavity (23) by means of a snap connection, a top rod (24) is installed at the bottom of the cover plate, and a plurality of activated carbon plates (25) are arranged from top to bottom on the outer wall of the top rod (24).

5. A multi-layer purification device for chemical waste gas according to claim 4, characterized in that: The outer wall of the top rod (24) is a threaded structure, and an activated carbon plate (25) is installed on the outer wall of the top rod (24) by rotating the thread.

6. A multi-layer purification device for chemical waste gas according to claim 1, characterized in that: The top of the base frame (1) is symmetrically provided with an adjustment groove, a limit spring (26) is arranged in the adjustment groove, a limit slider is installed at the other end of the limit spring (26), and an L-shaped plate (17) is installed at the bottom of the limit slider.

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