Industrial waste gas treatment device

Abstract

The utility model discloses an industrial waste gas treatment device and relates to the field of industrial environmental protection. The industrial waste gas treatment device comprises a device body, an air inlet and an air outlet are respectively formed in the device body; the air inlet is formed in the bottom position of one side of the device body; the air inlet is communicated with a smoke dust purification device in the device body; one end, far away from the air inlet, of the smoke dust purification device is communicated with the exhaust pipeline; the exhaust pipeline is communicated with the smoke dust purification device; a return pipe is arranged on the exhaust pipeline; one end of the return pipe is communicated with the exhaust pipeline, and the other end of the return pipe is communicated with the smoke purification device; the device is provided with the smoke dust detection device and the return pipe, and gas can only flow back into the smoke dust purification device through the return pipe for secondary purification, so that the device can detect the concentration of the purified gas during use, and can secondarily purify unqualified gas to ensure that the discharged gas meets the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial environmental protection, and particularly relates to an industrial waste gas treatment device. Background Technique

[0002] Industrial waste gas refers to the gas emissions generated during industrial production processes, usually including sulfur dioxide, nitrogen oxides, volatile organic compounds, particulate matter, etc. Industrial waste gas causes harm to the environment and human health. Therefore, effective treatment and processing are required to reduce environmental pollution.

[0003] In the existing technology, the industrial waste gas treatment device discharges the treated waste gas to the outside, unable to ensure whether the treated waste gas meets the emission standards, and at the same time unable to perform secondary filtration on the waste gas that still does not meet the standards after filtration and purification.

[0004] Therefore, we propose an industrial waste gas treatment device to solve the problems mentioned above. Content of the Utility Model

[0005] The purpose of the utility model is to provide an industrial waste gas treatment device to solve the problem in the above background technique that the existing industrial waste gas treatment devices in the market cannot ensure whether the waste gas meets the emission standards after treatment.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an industrial waste gas treatment device, including a device body; an air inlet and an air outlet are respectively arranged on the device body; the air inlet is arranged at the bottom position on one side of the device body; the air inlet is communicated with a dust purification device inside the device body; one end of the dust purification device away from the air inlet is communicated with an exhaust pipe; the exhaust pipe is communicated with the dust purification device; a return pipe is arranged on the exhaust pipe; one end of the return pipe is communicated with the exhaust pipe, and the other end is communicated with the dust purification device.

[0007] As a preferred technical solution of the utility model, through grooves are respectively opened at the same height on the exhaust pipe and the return pipe; racks are arranged inside the through grooves; the racks are slidably connected with the through grooves; the tooth sides of the racks face upwards; the racks and the through grooves fit each other.

[0008] As a preferred technical solution of the utility model, gears are arranged on the racks; the gears fit with the racks; the gears are fixedly installed inside the device body and are electrically connected with a dust detection device; the dust detection device is fixedly connected with an induction head; the induction head penetrates through the upper wall of the exhaust pipe, and the dust detection device is fixedly installed above the exhaust pipe.

[0009] As a preferred technical solution of the present utility model, a multi-stage filter screen is arranged inside the soot purification device; the multi-stage filter screen is fixedly installed inside the soot purification device.

[0010] As a preferred technical solution of the present utility model, the reflux pipe is communicated with the internal reflux port of the soot purification device; an air-controlled one-way valve is arranged between the reflux port and the reflux pipe; the air-controlled one-way valve is fixedly connected with the reflux pipe; the air inlet end of the air-controlled one-way valve is communicated with the exhaust duct; the reflux port is arranged on the side of the multi-stage filter screen away from the exhaust duct.

[0011] As a preferred technical solution of the present utility model, a waste heat recovery device is arranged inside the device body; two receiving ends of the waste heat recovery device are respectively connected with the exhaust duct and the reflux pipe; the output end of the waste heat recovery device passes through the top end of the device body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The device is provided with a soot detection device and a reflux pipe. During use, the industrial waste gas is filtered and purified by the soot purification device, and the purified gas is discharged to the outside through the exhaust duct. While the gas is flowing in the exhaust duct, the induction head below the soot detection device detects and analyzes the components in the gas. When it is detected that the content of harmful gases in the gas is higher than the standard value, the soot detection device transmits an electrical signal to the gear, controls the gear to rotate, drives the rack to extend towards the exhaust duct, so that the gas can only flow back to the inside of the soot purification device through the reflux pipe for secondary purification. Thus, the device can detect the concentration of the purified gas during use and can perform secondary purification on the unqualified gas to ensure that the discharged gas meets the standards.

[0014] 2. The device is provided with an air-controlled one-way valve. The air-controlled one-way valve at the reflux port can prevent the gas inside the soot purification device from flowing into the exhaust duct through the reflux pipe without being purified. Thus, the device can prevent the gas from flowing into the exhaust duct without being purified during use, causing unnecessary gas reflux and avoiding affecting the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the main sectional structure schematic diagram of the present utility model;

[0016] Figure 2 is for the present utility model Figure 1 the enlarged structure schematic diagram at A in;

[0017] Figure 3 is the overall three-dimensional structure schematic diagram of the device of the present utility model.

[0018] In the figure: 1. Device body; 2. Air inlet; 3. Air outlet; 4. Smoke and dust purification device; 5. Multi-stage filter screen; 6. Exhaust duct; 7. Smoke and dust detection device; 8. Induction head; 9. Gear; 10. Rack; 11. Return pipe; 12. Through groove; 13. Return port; 14. Pneumatic check valve; 15. Waste heat recovery device. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Please refer to Figures 1-3 , the present invention provides a technical solution: an industrial waste gas treatment device, including a device body 1; an air inlet 2 and an air outlet 3 are respectively provided on the device body 1; the air inlet 2 is arranged at the bottom position on one side of the device body 1; the air inlet 2 is communicated with a smoke and dust purification device 4 inside the device body 1; one end of the smoke and dust purification device 4 far from the air inlet 2 is communicated with an exhaust duct 6; the exhaust duct 6 is communicated with the smoke and dust purification device 4; a return pipe 11 is arranged on the exhaust duct 6; one end of the return pipe 11 is communicated with the exhaust duct 6, and the other end is communicated with the smoke and dust purification device 4; first, industrial waste gas is collected through the air inlet 2 at one end of the device body 1 and conveyed into the smoke and dust purification device 4, the waste gas is filtered and purified through a multi-stage filter screen 5 inside the smoke and dust purification device 4, and the gas after the filtration and purification is circulated through the exhaust duct 6 and discharged through the air outlet 3; while the gas is circulating inside the exhaust duct 6, the induction head 8 below the smoke and dust detection device 7 analyzes and detects the gas.

[0021] The exhaust duct 6 and the return pipe 11 are both provided with through grooves 12 at the same height; a rack 10 is arranged inside the through groove 12; the rack 10 is slidably connected with the through groove 12; the teeth side of the rack 10 faces upward; the rack 10 and the through groove 12 fit each other; a gear 9 is arranged on the rack 10; the gear 9 fits with the rack 10; the gear 9 is fixedly installed inside the device body 1 and is electrically connected with the smoke and dust detection device 7; the smoke and dust detection device 7 is fixedly connected with the induction head 8; the induction head 8 penetrates through the upper wall of the exhaust duct 6, and the smoke and dust detection device 7 is fixedly installed above the exhaust duct 6; when the induction head 8 senses that the content of harmful gas in the gas is higher than the standard value, the smoke and dust detection device 7 transmits an electrical signal to the gear 9, the gear 9 rotates to move the rack 10, and the rack 10 moves towards the through groove 12 opened on the exhaust duct 6, and the rack 10 blocks the exhaust duct 6. While the exhaust duct 6 is blocked, the return pipe 11 is opened due to the movement of the rack 10, and the unqualified gas is returned to the smoke and dust purification device 4 through the return pipe 11 for secondary purification.

[0022] Inside the soot purification device 4, there are multiple filter screens 5; the multiple filter screens 5 are fixedly installed inside the soot purification device 4; the return pipe 11 communicates with the internal return port 13 of the soot purification device 4; an air-controlled one-way valve 14 is arranged between the return port 13 and the return pipe 11; the air-controlled one-way valve 14 is fixedly connected to the return pipe 11; the air inlet end of the air-controlled one-way valve 14 communicates with the exhaust duct 6; the return port 13 is arranged on the side of the multiple filter screens 5 away from the exhaust duct 6, and the air-controlled one-way valve 14 between the return port 13 and the return pipe 11 prevents unpurified gas from flowing through the return pipe 11 to the exhaust duct 6.

[0023] Inside the device body 1, there is a waste heat recovery device 15; the two receiving ends of the waste heat recovery device 15 are respectively connected to the exhaust duct 6 and the return pipe 11; the output end of the waste heat recovery device 15 passes through the top end of the device body 1; through the waste heat recovery device 15, the heat in the waste gas can be absorbed and stored and transported to places where there is a need outside.

[0024] Working principle: When using the industrial waste gas treatment device, first, the industrial waste gas is collected through the air inlet 2 at one end of the device body 1 and transported to the inside of the soot purification device 4. The waste gas is filtered and purified by the multiple filter screens 5 inside the soot purification device 4. The gas after filtration and purification flows through the exhaust duct 6 and is discharged through the air outlet 3; while the gas is flowing inside the exhaust duct 6, the induction head 8 below the soot detection device 7 analyzes and detects the gas. When the induction head 8 senses that the content of harmful gases in the gas is higher than the standard value, the soot detection device 7 transmits an electrical signal to the gear 9. The gear 9 rotates to move the rack 10. The other rack 10 moves towards the through slot 12 opened on the exhaust duct 6, and the other rack 10 blocks the exhaust duct 6. While the exhaust duct 6 is blocked, due to the movement of the rack 10, the return pipe 11 is opened, and the unqualified gas flows back to the inside of the soot purification device 4 through the return pipe 11 for secondary purification. The air-controlled one-way valve 14 between the return port 13 and the return pipe 11 prevents unpurified gas from flowing through the return pipe 11 to the exhaust duct 6; through the waste heat recovery device 15, the heat in the waste gas can be absorbed and stored and transported to places where there is a need outside.

[0025] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights involved.

Claims

1. An industrial waste gas treatment device, comprising a device body (1); Features: The device body (1) is provided with an air inlet (2) and an air outlet (3); the air inlet (2) is arranged at the bottom of one side of the device body (1); the air inlet (2) is connected to a smoke purification device (4) inside the device body (1); the end of the smoke purification device (4) away from the air inlet (2) is connected to an exhaust duct (6); the exhaust duct (6) is connected to the smoke purification device (4); a return pipe (11) is arranged on the exhaust duct (6); one end of the return pipe (11) is connected to the exhaust duct (6), and the other end is connected to the smoke purification device (4).

2. The industrial waste gas treatment device according to claim 1, characterized in that: The exhaust duct (6) and the return duct (11) are both provided with a through groove (12) at the same height; a rack (10) is provided inside the through groove (12); the rack (10) is slidably connected to the through groove (12); the toothed edge of the rack (10) faces upward; and the rack (10) and the through groove (12) fit each other.

3. The industrial waste gas treatment device according to claim 2, characterized in that: A gear (9) is arranged on the rack (10); the gear (9) fits with the rack (10); the gear (9) is fixedly mounted inside the device body (1), and the gear (9) is electrically connected to the smoke detection device (7); the smoke detection device (7) is fixedly connected to the sensor head (8); the sensor head (8) passes through the upper wall of the exhaust duct (6), and the smoke detection device (7) is fixedly mounted above the exhaust duct (6).

4. The industrial waste gas treatment device according to claim 1, characterized in that: A multi-stage filter screen (5) is arranged inside the smoke purification device (4); the multi-stage filter screen (5) is fixedly installed inside the smoke purification device (4).

5. The industrial waste gas treatment device according to claim 1, characterized in that: The return pipe (11) is in communication with a return port (13) inside the smoke purification device (4); an air-controlled one-way valve (14) is provided between the return port (13) and the return pipe (11); the air-controlled one-way valve (14) is fixedly connected to the return pipe (11); the air inlet end of the air-controlled one-way valve (14) is in communication with an exhaust duct (6); the return port (13) is provided on a side of the multi-stage filter (5) away from the exhaust duct (6).

6. The industrial waste gas treatment device according to claim 1, characterized in that: A waste heat recovery device (15) is arranged inside the device body (1); two receiving ends of the waste heat recovery device (15) are respectively connected to the exhaust duct (6) and the return pipe (11); and the output end of the waste heat recovery device (15) passes through the top of the device body (1).

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