Waste gas collecting and treating device

Abstract

The utility model relates to the technical field of mineral aggregate detection auxiliary equipment, in particular to a waste gas collecting and treating device which is applied to a sulfur dioxide detection device, and a waste gas collecting tank is arranged at the waste gas output end of the sulfur dioxide detection device and used for collecting and treating waste gas and dust generated after combustion during sulfur-containing mineral aggregate detection. The waste gas collecting tank is filled with alkaline absorption liquid, the alkaline absorption liquid is utilized to filter waste gas and dust for the first time, and a filter is mounted at the top in the waste gas collecting tank and is used for filtering the waste gas subjected to gas-liquid separation for the second time; waste gas and dust are conveyed into the waste gas collecting tank through the connecting pipe; waste gas subjected to secondary filtration is exhausted through the exhaust pipe, and through a double purification mechanism, the problems of waste gas leakage and insufficient purification efficiency are effectively solved by combining an annular sealing ring between the tank body and the end cover and a screw-thread fit airtight packaging structure, the waste gas treatment effect is improved, and laboratory environment safety and personnel health are comprehensively guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for mineral testing, specifically to a waste gas collection and treatment device used in the process of sulfur dioxide detection. Background Technology

[0002] In the detection of sulfur dioxide content in mineral materials, the combustion method is commonly used for quantitative analysis. The specific procedure is as follows: the mineral sample is placed in a sulfur dioxide detection device, and through complete combustion, sulfur is converted into sulfur dioxide gas (SO2). Combustion produces dust and other acidic gases such as sulfur trioxide (SO3) and carbon dioxide (CO2), which together form a mixed waste gas. This mixed waste gas must be purified before being released; otherwise, it will cause serious environmental pollution.

[0003] However, current sulfur dioxide detection devices have significant design flaws, lacking dedicated waste gas treatment and dust collection structures. In practice, a simple small bucket with a flexible hose is often used, relying on liquid inside the bucket to absorb the waste gas for basic filtration. But this simplistic structure has the following problems:

[0004] 1. The existing simple structure connects the tank body and end cap with threads without an effective sealing component, which makes it easy for combustion exhaust gas to leak, polluting the laboratory environment and potentially endangering the health of operators.

[0005] 2. Relying solely on liquid absorption to treat waste gas means that some sulfur dioxide gas cannot be completely absorbed and is directly emitted into the atmosphere, making it difficult to meet environmental protection standards.

[0006] 3. The weight of the small bucket increases significantly after being filled with liquid, and the lack of special moving aids makes it extremely difficult for experimenters to carry. Improper operation can easily lead to liquid spillage, damage to surrounding equipment, or even safety accidents.

[0007] To address the problems existing in current technologies, it is necessary to develop a well-sealed, highly efficient, and easily portable waste gas treatment and dust collection device to effectively prevent waste gas leakage, ensure laboratory environmental safety, and improve the quality of waste gas purification, so as to meet or even exceed the stringent environmental standards for waste gas emissions. Summary of the Invention

[0008] To address the shortcomings of the existing technology, this utility model provides a waste gas collection and treatment device. By setting an alkaline absorbent liquid and a top filter inside the waste gas collection tank to form a dual purification mechanism, combined with the annular sealing ring and threaded gas-tight structure between the tank body and the end cap, the device effectively solves the problems of waste gas leakage and insufficient purification efficiency. Overall, it significantly improves the waste gas treatment effect, comprehensively protects the laboratory environment and personnel health, and meets or even exceeds the stringent requirements of environmental protection standards.

[0009] Specifically, this utility model provides a waste gas collection and treatment device for collecting waste gas during the use of a sulfur dioxide detection device. A waste gas collection tank is set at the waste gas output end of the sulfur dioxide detection device to collect and treat the waste gas and dust generated after combustion during the detection of sulfur-containing minerals.

[0010] The waste gas collection tank is filled with alkaline absorbent liquid, which is used to perform the first filtration of waste gas and dust.

[0011] The waste gas collection tank is equipped with a filter at the top for secondary filtration of the waste gas after gas-liquid separation.

[0012] The waste gas collection tank is connected to the sulfur dioxide detection device via a connecting pipe and is used to transport waste gas and dust.

[0013] The waste gas collection tank is connected to an exhaust pipe for discharging the waste gas that has undergone secondary filtration.

[0014] Furthermore, the tank body and end caps;

[0015] An annular sealing ring is provided between the tank body and the end cover, and the gas seal is achieved through threaded connection to prevent exhaust gas leakage.

[0016] Furthermore, the tank is equipped with a flexible hose for conveying the waste gas and dust into the alkaline absorption liquid.

[0017] Furthermore, the end cap is provided with an exhaust port, an air inlet, and a water inlet;

[0018] The upper end of the exhaust port is sealed to the exhaust pipe, and the lower end is connected to the filter. After the exhaust gas is filtered twice by the filter, it is discharged through the exhaust pipe.

[0019] The upper end of the air inlet is sealed to the connecting pipe with a sealing ring, and the lower end is connected to the hose, which is used to transport exhaust gas and dust.

[0020] The inlet is used to fill the liquid, and an inlet cap is connected to the inlet, which is sealed by threads.

[0021] Furthermore, it also includes a support frame; a U-shaped fixing seat is provided on the top of the support frame for fixing the waste gas collection tank; and casters are provided on the bottom of the support frame to facilitate the movement of the entire waste gas collection and treatment device.

[0022] Furthermore, brakes are installed on the moving wheels to secure the exhaust gas collection and treatment device when it is moved to a suitable position.

[0023] Working principle: Before operating the waste gas collection and treatment device, the operator first fills the tank 101 of the waste gas collection tank 1 with an appropriate amount of alkaline absorbent liquid 12 through the inlet 5 and tightens the inlet cap 501. Then, the waste gas collection tank 1 is fixed on the "U"-shaped fixing seat 601 of the support frame 6, and the device is moved to a suitable position using the casters 602, and then fixed by braking.

[0024] During operation, the ore sample is first placed into the sulfur dioxide detection device 10, and the device is turned on to heat the ore and ensure complete combustion. During combustion, the exhaust gas and dust generated in the sulfur dioxide detection device 10 enter through the inlet 4 via the connecting pipe 7 and are then transported to the alkaline absorbent liquid 12 through the hose 2. At this point, the alkaline absorbent liquid 12 neutralizes the acidic gases in the exhaust gas and also adsorbs some dust, achieving the first stage of filtration. The exhaust gas after passing through the alkaline absorbent liquid 12 rises to the top of the tank and undergoes a second filtration through the filter 8. The filter 8 further intercepts any remaining fine particles and any harmful gases that were not completely absorbed. Finally, the gas that meets the standards after the second filtration is discharged through the exhaust pipe 9.

[0025] Beneficial effects:

[0026] 1. This utility model achieves significant purification of acidic gases such as sulfur dioxide and dust in exhaust gas through dual purification using alkaline absorption liquid and top filter, greatly improving the efficiency of exhaust gas purification.

[0027] 2. The annular sealing ring and threaded fit between the tank body and the end cap of this utility model provide an airtight seal, effectively preventing waste gas leakage and ensuring the safety of the laboratory environment and the health of personnel.

[0028] 3. The connecting pipe of this utility model is sealed to each interface, so as to realize the directional and stable transportation of exhaust gas and dust from the detection device to the collection tank and avoid the escape.

[0029] 4. The end cap of this utility model is provided with multiple interfaces, such as exhaust port, air inlet port, and water inlet port, with clear functions, which facilitates connection and operation.

[0030] 5. The support frame of this utility model is equipped with casters, which makes it easy to move the entire device to a suitable position to meet different experimental layout requirements.

[0031] 6. The movable wheel of this utility model is equipped with a brake, which can be firmly fixed after the device reaches the designated position to prevent accidental slippage.

[0032] 7. The "U"-shaped fixing base of this utility model fixes the exhaust gas collection tank, reducing shaking during transportation, lowering the risk of liquid splashing, and protecting the safety of surrounding equipment.

[0033] 8. Most of the components of this utility model are connected by threads and sealing rings, such as the tank body and end cap, and the air inlet and connecting pipe, which makes disassembly and installation easy and facilitates daily maintenance and repair. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the working state of the device of this utility model;

[0035] Figure 2 This is a schematic diagram showing the installation position of the device of this utility model;

[0036] Figure 3 This is a rear view showing the installation position of the device of this utility model;

[0037] Figure 4 This is a schematic diagram of the device structure of this utility model;

[0038] Figure 5 This is a cross-sectional view of the device in operation.

[0039] Figure 6 This is a side view of the device in its working state.

[0040] The following labels are used in the diagram: 1—Waste gas collection tank, 101—Tank body, 102—End cap; 2—Hose, 3—Exhaust port, 4—Air inlet, 7—Connecting pipe, 8—Filter, 9—Exhaust pipe, 10—Sulfur dioxide detection device, 11—Detection platform, 12—Alkaline absorption liquid; 5—Water inlet, 501—Water inlet cover; 6—Support frame, 601—Fixed seat, 602—Moving wheels. Detailed Implementation

[0041] The technical solution will now be described in detail with reference to the accompanying drawings of the embodiments of this utility model.

[0042] Example 1

[0043] like Figure 6 As shown, a waste gas collection and treatment device includes: a waste gas collection tank 1, a tank body 101, an end cap 102, a hose 2, an exhaust port 3, an air inlet 4, a water inlet 5, a water inlet cap 501, a support frame 6, a fixed base 601, a caster wheel 602, a connecting pipe 7, a filter 8, an exhaust pipe 9, a sulfur dioxide detection device 10, a detection platform 11, and an alkaline absorption liquid 12.

[0044] like Figure 1 ,6 As shown, the waste gas collection and treatment device is applied to the sulfur dioxide detection device 10. A waste gas collection tank 1 is installed at the waste gas output end of the sulfur dioxide detection device 10 to collect and treat the waste gas and dust generated after combustion during the detection of sulfur-containing minerals. The waste gas collection tank 1 consists of a tank body 101 and an end cap 102. An annular sealing ring is installed between the tank body 101 and the end cap 102, and a gas-tight seal is achieved through threaded connection to prevent waste gas leakage. Furthermore, the waste gas can be precisely guided into the alkaline absorbent liquid 12 through a flexible hose 2. The alkaline absorbent liquid 12 can neutralize the acidic components in the waste gas, effectively adsorbing dust, initially purifying the waste gas, and achieving solid-gas separation.

[0045] like Figure 4 As shown, in this embodiment, the waste gas collection tank 1 is cylindrical in shape, with the following dimensions: diameter: 25 cm, height: 45 cm.

[0046] like Figure 5 As shown, the waste gas collection tank 1 contains an alkaline absorbent liquid 12, which is a sodium hydroxide (NaOH) solution with a concentration of 15% (mass percentage). This concentration of sodium hydroxide solution has strong alkalinity and can efficiently react with sulfur dioxide (SO2) in the waste gas, thereby achieving effective absorption and removal of sulfur dioxide (SO2).

[0047] The amount of alkaline absorbent liquid 12 needs to reach more than half the height of the waste gas collection tank 1 and be lower than the installation position of the filter 8. The alkaline absorbent liquid 12 is used to perform the first filtration of waste gas and dust. The filter 8 is installed at the top of the waste gas collection tank 1 and is used to perform the second filtration of the waste gas after gas-liquid separation. The exhaust port 3, air inlet 4, and water inlet 5 are opened on the end cover 102. The upper end of the exhaust port 3 is sealed to the exhaust pipe 9 by a sealing ring, and the lower end is connected to the filter 8. After the waste gas is filtered twice by the filter 8, it is discharged through the exhaust pipe 9.

[0048] The top filter 8 is an activated carbon filter, which includes a mesh cover and an activated carbon filter element inside the mesh cover; in this embodiment, it is a Xinlaiwang XLW23 activated carbon filter manufactured by Shanghai Laiwang Industrial Materials Co., Ltd. After the exhaust gas undergoes primary treatment, it enters this activated carbon filter, where the filter utilizes the abundant pore structure and large specific surface area of ​​activated carbon to perform secondary filtration through adsorption. Activated carbon can efficiently and effectively adsorb various pollutants contained in the exhaust gas, thereby further purifying the exhaust gas and improving the quality and effect of exhaust gas treatment.

[0049] The upper end of the air inlet 4 is sealed to the connecting pipe 7 by a sealing ring, and the lower end is connected to the hose 2 for conveying exhaust gas and dust.

[0050] The inlet 5 is used to fill the liquid. The inlet cap 501 is sealed to the inlet 5 by a sealing ring and threaded connection, which makes it convenient for operators to add or replace the alkaline absorbent 12 as needed, ensuring the continuity of the purification effect.

[0051] The exhaust gas collection tank 1 is connected to the sulfur dioxide detection device 10 via the connecting pipe 7, and is used to transport exhaust gas and dust to the air inlet 4.

[0052] like Figure 6 As shown, the fixed base 601 is set above the support frame 6 and is set in a "U" shape to fix the waste gas collection tank 1 and prevent it from shaking during operation; the movable wheel 602 is set below the support frame 6 and is equipped with brakes, which not only facilitates the flexible movement of the device between different positions in the laboratory, but also allows it to be stably fixed after reaching a suitable position, avoiding liquid splashing or other situations caused by accidental movement.

[0053] like Figure 1 , 5 As shown, before operating the waste gas collection and treatment device, the operator first fills the tank 101 of the waste gas collection tank 1 with an appropriate amount of alkaline absorbent liquid 12 through the inlet 5 and tightens the inlet cap 501. Then, the waste gas collection tank 1 is fixed on the "U"-shaped fixing seat 601 of the support frame 6, and the device is moved to a suitable position using the casters 602, and then fixed by braking.

[0054] During operation, the ore sample is first placed into the sulfur dioxide detection device 10, and the device is turned on to heat the ore and ensure complete combustion. During combustion, the exhaust gas and dust generated in the sulfur dioxide detection device 10 enter through the inlet 4 via the connecting pipe 7 and are then transported to the alkaline absorbent liquid 12 through the hose 2. At this point, the alkaline absorbent liquid 12 neutralizes the acidic gases in the exhaust gas and also adsorbs some dust, achieving the first stage of filtration. The gas-liquid separated exhaust gas rises to the top of the tank and undergoes a second filtration through the filter 8, which further intercepts remaining fine particles and incompletely absorbed harmful gases. Finally, the gas that meets the standards after secondary filtration is discharged through the exhaust pipe 9.

[0055] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A waste gas collection and treatment device applied to waste gas collection in the use process of a sulfur dioxide detection device, characterized in that: An exhaust gas collection tank (1) is installed at the exhaust gas output end of the sulfur dioxide detection device (10) to collect and treat the exhaust gas and dust generated after combustion during the detection of sulfur-containing mineral materials; The waste gas collection tank (1) is filled with alkaline absorbent liquid (12), which is used to perform the first filtration of waste gas and dust. The waste gas collection tank (1) is equipped with a filter (8) at the top for a second filtration of the waste gas after gas-liquid separation; The waste gas collection tank (1) is connected to the sulfur dioxide detection device (10) through the connecting pipe (7) and is used to transport waste gas and dust; The exhaust gas collection tank (1) is connected to an exhaust pipe (9) for discharging exhaust gas that has undergone secondary filtration.

2. The exhaust gas collection and treatment device of claim 1, wherein: The waste gas collection tank (1) includes: a tank body (101) and an end cap (102); An annular sealing ring is provided between the tank body (101) and the end cap (102), and the gas seal is achieved through threaded connection to prevent exhaust gas leakage.

3. The exhaust gas collection and treatment device of claim 2, wherein: The tank (101) is equipped with a hose (2) for conveying waste gas and dust to the alkaline absorption liquid (12).

4. The exhaust gas collection and treatment device of claim 3, wherein: The end cap (102) is provided with an exhaust port (3), an air inlet (4), and a water inlet (5); The upper end of the exhaust port (3) is sealed to the exhaust pipe (9), and the lower end is connected to the filter (8). After the exhaust gas is filtered twice by the filter (8), it is discharged through the exhaust pipe (9). The upper end of the air inlet (4) is sealed to the connecting pipe (7) by a sealing ring, and the lower end is connected to the hose (2) for conveying exhaust gas and dust. The inlet (5) is used to fill liquid. The inlet (5) is connected to an inlet cap (501) and is sealed by threads.

5. The exhaust gas collection and treatment device of claim 1, wherein: It also includes a support frame (6); a "U"-shaped fixing seat (601) is provided on the upper part of the support frame (6) for fixing the waste gas collection tank (1); and a moving wheel (602) is provided on the lower part of the support frame (6) to facilitate the movement of the entire waste gas collection and treatment device.

6. The exhaust gas collection and treatment device of claim 5, wherein: Brakes are installed on the moving wheels (602) to fix the exhaust gas collection and treatment device when it is moved to a suitable position.

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