Modularized combined type workshop waste gas purification treatment equipment

Abstract

The utility model discloses modularized combined type workshop waste gas purification treatment equipment, and belongs to the technical field of waste gas purification. Comprising a waste gas collection module, an absorption tower connected with the waste gas collection module, a catalytic combustion module, a plasma generator and a waste gas detection module connected with the waste gas collection module, after workshop waste gas is collected by the waste gas collection module, specific pollutant components of the waste gas are detected by the waste gas detection module, and then the absorption tower, the catalytic combustion module or the plasma generator is selected for targeted treatment according to a detection result. An absorption tower, a catalytic combustion module or a plasma generator can be selected for treatment according to needs, so that the treatment effect is improved; compared with traditional integrated waste gas treatment equipment with fixed functions, the modularized equipment can flexibly adjust running modules according to actual requirements, so that the running cost of the equipment is reduced, and excessive use of unnecessary treatment resources is avoided.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology, specifically to a modular combined workshop waste gas purification and treatment equipment. Background Technology

[0002] Machining, chemical processing, and electronics manufacturing all generate a large amount of waste gas. For example, chemical workshops release various organic compounds, acidic gases, and other pollutants during production; while machining workshops generate dust and oily mist.

[0003] The composition of workshop exhaust gas is becoming increasingly complex. In addition to common particulate matter (such as dust and metal shavings), it also includes volatile organic compounds (VOCs), acidic gases (such as sulfur dioxide and nitrogen oxides), and water vapor with large humidity variations. Different industrial production processes will produce specific combinations of exhaust gas pollutants. For example, the exhaust gas in a printing workshop contains organic solvents volatilized from ink, and may also contain paper dust.

[0004] Therefore, there is an urgent need for a modular and combined workshop exhaust gas purification and treatment equipment. Traditional equipment usually adopts a fixed single treatment method. Due to its fixed function, it is difficult to adapt to changes in the composition of exhaust gas during workshop production and cannot adjust the treatment in time, resulting in a decline in treatment effect. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a modular combined workshop exhaust gas purification and treatment equipment.

[0006] The technical solution of this utility model is: a modular combined workshop exhaust gas purification and treatment equipment, including an exhaust gas collection module, an absorption tower connected to the exhaust gas collection module, a catalytic combustion module, a plasma generator, and an exhaust gas detection module connected to the exhaust gas collection module;

[0007] The exhaust gas collection module includes a main collection pipe, several collection hoods connected to one side of the main collection pipe via first connecting branch pipes, and an exhaust fan installed on the main collection pipe. Each first connecting branch pipe is equipped with a first solenoid valve.

[0008] The absorption tower, catalytic combustion module, and plasma generator are respectively connected to the other side of the collection main pipe through the second connecting branch pipe, and each connection is equipped with a second solenoid valve. The absorption tower and catalytic combustion module, the absorption tower and plasma generator, and the catalytic combustion module and plasma generator are all connected through circulation branch pipes, and each circulation branch pipe is equipped with a third solenoid valve.

[0009] The exhaust gas detection module is internally connected to the main collection pipe.

[0010] Furthermore, each of the collection hoods has several snap-fit ​​rings inside and along the airflow direction, and each snap-fit ​​ring is movably connected to a dust removal filter screen, the mesh size of which gradually decreases along the airflow direction.

[0011] Explanation: After the exhaust gas enters the collection hood, the dust particles of various sizes pass through the dust removal filter screens with gradually decreasing mesh size. This prevents the dust particles from causing blockages, wear, or other damage to subsequent treatment equipment, reducing the frequency of equipment maintenance and replacement. At the same time, the dust removal filter screens are designed with movable connections, making it convenient for them to be replaced and cleaned regularly.

[0012] Furthermore, each of the collection covers is movably connected to a storage box at its bottom end, and the bottom end of the collection cover and each of the storage boxes are connected through a dust discharge port, and the storage boxes are made of transparent material.

[0013] Note: While the dust is filtered through the dust filter, the dust particles accumulated on the filter will fall into the storage box through the dust collection port for temporary storage. This facilitates the unified treatment and disposal of the dust later and prevents it from falling into the collection hood, which would increase the difficulty of cleaning. By making the storage box transparent, the amount of dust particles stored inside can be observed, making it convenient for timely cleaning.

[0014] Furthermore, the exhaust gas detection module is connected to the detection chamber of the collection main pipe, and several sensors are installed in the detection chamber. A sampling pump is provided at the connection between the detection chamber and the collection main pipe. Each of the sensors is connected to an external control device through a data transmission interface.

[0015] Explanation: After the exhaust gas flows into the main collection pipe through each of the first connecting branch pipes, a portion of the exhaust gas can be extracted into the detection chamber by a sampling pump. Various sensors detect indicators such as particulate matter concentration, organic matter concentration, and humidity of the exhaust gas. This allows for the switching of different treatment equipment and combinations based on the pollutant composition of the exhaust gas, enabling targeted treatment of the exhaust gas and improving the treatment effect.

[0016] Furthermore, the sensor comprises three sensors: a particulate matter sensor, an organic matter concentration sensor, and a humidity sensor.

[0017] Description: The system uses a particulate matter sensor to detect the concentration of fixed particulate matter in the exhaust gas, an organic matter concentration sensor to detect the concentration of organic matter in the exhaust gas, and a humidity sensor to detect the humidity in the exhaust gas. This allows for convenient and accurate detection of particulate matter concentration, organic matter concentration, and humidity levels in the exhaust gas, thereby improving the intelligence level of the equipment.

[0018] The beneficial effects of this utility model are:

[0019] This modular combined workshop exhaust gas purification and treatment equipment, in use, involves collecting workshop exhaust gas through an exhaust gas collection module, detecting the specific pollutant components through an exhaust gas detection module, and then selecting an absorption tower, catalytic combustion module, or plasma generator for targeted treatment based on the detection results. Alternatively, a combination of these modules can be used to improve treatment efficiency. Compared to traditional integrated but functionally fixed exhaust gas treatment equipment, this modular equipment allows for flexible adjustment of operating modules according to actual needs, thereby reducing operating costs and avoiding the overuse of unnecessary treatment resources. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the collection cover of this utility model;

[0022] Figure 3 This is a schematic diagram of the exhaust gas detection module of this utility model.

[0023] Among them, 1-exhaust gas collection module, 10-collection main pipe, 11-collection hood, 110-first connecting branch pipe, 111-clamping ring, 112-dust filter screen, 113-storage box, 114-ash discharge port, 12-first solenoid valve, 13-exhaust fan, 14-second connecting branch pipe, 15-second solenoid valve, 16-circulation branch pipe, 17-third solenoid valve, 2-absorption tower, 3-catalytic combustion module, 4-plasma generator, 5-exhaust gas detection module, 50-sampling pump, 51-detection chamber, 52-particulate matter sensor, 53-organic matter concentration sensor, 54-humidity sensor. Detailed Implementation

[0024] Example 1: As Figure 1 , 3 As shown, a modular combined workshop exhaust gas purification and treatment equipment includes an exhaust gas collection module 1, an absorption tower 2 connected to the exhaust gas collection module 1, a catalytic combustion module 3, a plasma generator 4, and an exhaust gas detection module 5 connected to the exhaust gas collection module 1. The absorption tower 2, the catalytic combustion module 3, and the plasma generator 4 all adopt existing technologies. For example, the absorption tower 2 can be a packed tower filled with an absorbent liquid, which can be a sodium hydroxide solution. It can be used to absorb acidic gases such as carbon dioxide and sulfur dioxide. Sodium hydroxide reacts with the acidic gases to neutralize them and convert them into salt and water, thereby achieving gas absorption. The catalytic combustion module 3 can be a catalytic combustion furnace of model JZ-RCO-1W, and the plasma generator 4 can be a plasma generator of model Apex RF Generator.

[0025] The exhaust gas collection module 1 includes a main collection pipe 10, two collection covers 11 connected to one side of the main collection pipe 10 via first connecting branch pipes 110, and an exhaust fan 13 mounted on the main collection pipe 10. Each first connecting branch pipe 110 is equipped with a first solenoid valve 12. The first solenoid valve 12 and the exhaust fan 13 both adopt existing technologies. For example, the first solenoid valve 12 can be an Airtac solenoid valve, and the exhaust fan 13 can be an industrial centrifugal fan.

[0026] The absorption tower 2, the catalytic combustion module 3, and the plasma generator 4 are connected to the other side of the collection main pipe 10 through the second connecting branch pipe 14, and each connection is equipped with a second solenoid valve 15. The absorption tower 2 and the catalytic combustion module 3, the absorption tower 2 and the plasma generator 4, and the catalytic combustion module 3 and the plasma generator 4 are all connected through circulation branch pipes 16, and each circulation branch pipe 16 is equipped with a third solenoid valve 17. The second solenoid valve 15 and the third solenoid valve 17 adopt existing technology. For example, the model of the second solenoid valve 15 and the third solenoid valve 17 can also be Airtac solenoid valves.

[0027] The exhaust gas detection module 5 is internally connected to the collection manifold 10;

[0028] like Figure 2 As shown, each collection hood 11 has three snap-fit ​​rings 111 inside and along the airflow direction. Each snap-fit ​​ring 111 is movably connected to a dust filter 112. The mesh size of the three dust filter screens 112 gradually decreases along the airflow direction. After exhaust gas enters the collection hood 11, dust particles of various sizes pass through the dust filter screens 112 with gradually decreasing mesh sizes. This prevents dust particles from causing blockages, wear, or other damage to subsequent processing equipment, reducing the frequency of equipment maintenance and replacement. Furthermore, the movable connection of each dust filter screen 112 facilitates easy adjustment. It is regularly replaced and cleaned. The first dust filter 112 has a mesh size of 2mm and is used to initially intercept larger dust particles; the second dust filter 112 has a mesh size of 1mm; and the third dust filter 112 has a mesh size of 0.5mm to intercept finer dust particles. All three dust filters 112 use existing technology. For example, the first dust filter 112 is model AAF-1, the second dust filter 112 is model AAF-2, and the third dust filter 112 is model AAF-3.

[0029] Each collection hood 11 is movably connected to a storage box 113 at its bottom. The bottom of the collection hood 11 and each storage box 113 are connected through a dust discharge port 114. The storage box 113 is made of transparent material. While the dust is filtered by the dust filter screen 112, the dust particles accumulated on the dust filter screen 112 will fall into the storage box 113 through the dust discharge port 114 for temporary storage. This facilitates the unified treatment and disposal of the dust in the future and prevents it from falling into the collection hood 11, which would increase the difficulty of cleaning. The storage box 113 is made of transparent material, such as existing polypropylene or polycarbonate, so that the amount of dust particles stored inside can be observed, which is convenient for timely cleaning.

[0030] like Figure 3 As shown, the exhaust gas detection module 5 is connected to the collection main pipe 10 in the detection chamber 51, and three sensors are installed in the detection chamber 51. The three sensors are a particulate matter sensor 52, an organic matter concentration sensor 53, and a humidity sensor 54. Each sensor is connected to an external control device through a data transmission interface. A sampling pump 50 is provided at the connection between the detection chamber 51 and the collection main pipe 10. (It should be noted that the data transmission interface and external control device involved in this application are all prior art, and this application has not made any improvements to the data transmission interface and external control device itself.)

[0031] After the exhaust gas flows into the main collection pipe 10 through each of the first connecting branch pipes 110, a portion of the exhaust gas can be drawn into the detection chamber 51 by the sampling pump 50. The concentration of fixed particulate matter in the exhaust gas is detected by the particulate matter sensor 52, the concentration of organic matter in the exhaust gas is detected by the organic matter concentration sensor 53, and the humidity in the exhaust gas is detected by the humidity sensor 54. This allows for convenient and accurate detection of the particulate matter concentration, organic matter concentration, and humidity index in the exhaust gas. It also allows for switching between different treatment equipment and combinations based on the pollutant composition of the exhaust gas, enabling targeted treatment of the exhaust gas and improving the treatment effect. The sampling pump 50, particulate matter sensor 52, organic matter concentration sensor 53, and humidity sensor 54 all adopt existing technologies. For example, the sampling pump 50 can be model ZY-1000, the particulate matter sensor 52 can be model CEMS-2000, the organic matter concentration sensor 53 can be model GCMS-TQ8050 NX, and the humidity sensor 54 can be model HIH-4000.

[0032] The method of using a modular combined workshop exhaust gas purification and treatment equipment according to this embodiment includes the following steps:

[0033] S1. Open each of the first solenoid valves 12 and use the exhaust fan 13 to draw the workshop exhaust gas into each collection hood 11. At this time, the workshop exhaust gas is filtered in sequence through three dust removal filter screens 112 with mesh sizes of 2mm, 1mm and 0.5mm in each collection hood 11. The intercepted dust particles will fall into the transparent storage box 113 connected to the bottom through the dust discharge port 114 under the action of gravity.

[0034] S2. The workshop exhaust gas treated in each collection hood 11 is drawn into the main collection pipe 10 through each first connecting branch pipe 110. At this time, a portion of the exhaust gas is drawn into the detection chamber 51 by the sampling pump 50. The concentration of fixed particulate matter in the exhaust gas is detected by the particulate matter sensor 52, the concentration of organic matter in the exhaust gas is detected by the organic matter concentration sensor 53, and the humidity in the exhaust gas is detected by the humidity sensor 54.

[0035] S3. When the particulate matter sensor 52 and organic matter concentration sensor 53 detect normal results, but the humidity sensor 54 detects that the relative humidity in the exhaust gas exceeds 70%, it indicates that the acid gas content in the workshop exhaust gas exceeds the standard. At this time, the second solenoid valve 15 corresponding to the absorption tower 2 is opened by the external control equipment, so that the exhaust gas enters the absorption tower 2. The sodium hydroxide solution inside the absorption tower 2 reacts with the acid gas to neutralize it, converting the acid gas into salt and water to achieve absorption and purification. Then, the purified gas is discharged.

[0036] S4. When the particulate matter sensor 52 and humidity sensor 54 are normal, but the organic matter concentration sensor 53 detects that the organic matter concentration in the exhaust gas is greater than 200 ppm, the second solenoid valve 15 at the catalytic combustion module 3 is opened by the external control device, and the workshop exhaust gas is introduced into the catalytic combustion module 3, so that the organic matter reacts with oxygen at a suitable temperature, thereby converting the organic matter into harmless carbon dioxide and water, and then the purified gas is discharged.

[0037] S5. When the organic matter concentration sensor 53 and humidity sensor 54 detect normal results, but the particulate matter sensor 52 detects a concentration greater than 150 μg / m³, 3 At that time, the second solenoid valve 15 at the plasma generator 4 is opened by the external control equipment, and the workshop exhaust gas enters the plasma generator 4. The plasma generated by the plasma generator 4 impacts the pollutant molecules in the workshop exhaust gas, which can decompose large organic molecules into small molecules and change the complex particulate matter structure. Then, the purified gas is discharged.

[0038] S6. When the absorption tower 2, catalytic combustion module 3 and plasma generator 4 need to be used in combination, the workshop exhaust gas is first allowed to enter the plasma generator 4 for pretreatment. After decomposing complex pollutants, the external control equipment controls the third solenoid valve 17 at the connection between the plasma generator 4 and the absorption tower 2 or catalytic combustion module 3 to open, so that the gas can then enter the absorption tower 2 or catalytic combustion module 3 for further purification.

Claims

1. A modular combined workshop exhaust gas purification and treatment equipment, characterized in that, It includes a waste gas collection module (1), an absorption tower (2) connected to the waste gas collection module (1), a catalytic combustion module (3), a plasma generator (4), and a waste gas detection module (5) connected to the waste gas collection module (1); The exhaust gas collection module (1) includes a main collection pipe (10), several collection covers (11) connected to one side of the main collection pipe (10) via first connecting branch pipes (110), and an exhaust fan (13) installed on the main collection pipe (10). Each first connecting branch pipe (110) is equipped with a first solenoid valve (12). The absorption tower (2), the catalytic combustion module (3) and the plasma generator (4) are connected to the other side of the collection main pipe (10) through the second connecting branch pipe (14) and each connection is provided with a second solenoid valve (15). The absorption tower (2) and the catalytic combustion module (3), the absorption tower (2) and the plasma generator (4) and the catalytic combustion module (3) and the plasma generator (4) are all connected through the circulation branch pipe (16) and each circulation branch pipe (16) is provided with a third solenoid valve (17). The exhaust gas detection module (5) is internally connected to the collection manifold (10).

2. The modular combined workshop exhaust gas purification and treatment equipment according to claim 1, characterized in that, Inside each of the collection hoods (11) and along the airflow direction, there are several snap rings (111), and each snap ring (111) is movably connected to a dust removal filter (112), the mesh size of the dust removal filter (112) gradually decreases along the airflow direction.

3. The modular combined workshop exhaust gas purification and treatment equipment according to claim 2, characterized in that, Each of the collection covers (11) is movably connected to a storage box (113) at its bottom end. The bottom end of the collection cover (11) and each of the storage boxes (113) are connected through a dust outlet (114), and the storage box (113) is made of transparent material.

4. The modular combined workshop exhaust gas purification and treatment equipment according to claim 1, characterized in that, The exhaust gas detection module (5) is connected to the detection chamber (51) of the collection main pipe (10), and several sensors are installed in the detection chamber (51). A sampling pump (50) is provided at the connection between the detection chamber (51) and the collection main pipe (10). Each of the sensors is connected to an external control device through a data transmission interface.

5. The modular combined workshop exhaust gas purification and treatment equipment according to claim 4, characterized in that, The sensor consists of three sensors: a particulate matter sensor (52), an organic matter concentration sensor (53), and a humidity sensor (54).

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