Chemical experiment waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a chemical experiment waste gas treatment device which comprises a shell mechanism, the shell mechanism comprises an operation box body and a gas inlet pipe fixedly connected to the gas inlet end of the operation box body, and the exhaust end of the operation box body is fixedly connected with an exhaust pipe. The interior of the operation box main body is divided into three cavities by fixedly connecting a first barrier plate and a second barrier plate, the three cavities are filtering cavities formed between the operation box main body and the first barrier plate at intervals, and the section size of an air hole can be accurately controlled through an adjusting mechanism; therefore, the speed and the flow of the gas entering the gas guide pipe and the heating cavity through the gas holes are adjusted, the retention time of the gas in the heating cavity can be prolonged in the process, further drying of moisture in the gas is promoted, and therefore the exhausted gas cannot be too wet, and the service life of the gas is prolonged. And potential damage to the exhaust pipe due to over-high gas humidity in cold seasons is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, specifically, relate to a kind of chemical experiment waste gas treatment device. BACKGROUND

[0002] In the chemical experiment process, a variety of waste gas is often generated, and the waste gas is complex, including organic waste gas, inorganic waste gas and mixed waste gas containing various harmful substances, which not only threatens human health, but also causes serious pollution to the environment, therefore, effectively treating the waste gas generated in the chemical experiment is an important part of realizing green chemistry and sustainable development.

[0003] In the current chemical experiment waste gas treatment device, it often depends on fixed air hole design or simple throttling device, and this control mode has significant limitations, cannot accurately adjust the cross-sectional size of air hole according to actual demand, so as to be difficult to realize accurate control of gas flow and speed, since air hole size is fixed or the adjustment range is limited, the residence time of gas in heating cavity often cannot be optimized, resulting in that the drying effect of moisture in gas is not ideal, in cold season, if the humidity of gas discharged by waste gas treatment device is too high, not only the efficiency of subsequent treatment equipment can be reduced, but also potential damage such as corrosion and icing of exhaust pipe and other components can be caused, which seriously affects the safe operation and service life of device. SUMMARY

[0004] The utility model aims at providing a kind of chemical experiment waste gas treatment device, solve the problem that since air hole size is fixed or the adjustment range is limited, the residence time of gas in heating cavity often cannot be optimized, resulting in that the drying effect of moisture in gas is not ideal, in cold season, if the humidity of gas discharged by waste gas treatment device is too high, not only the efficiency of subsequent treatment equipment can be reduced, but also potential damage such as corrosion and icing of exhaust pipe and other components can be caused, which seriously affects the safe operation and service life of device.

[0005] The utility model provides following technical scheme: a kind of chemical experiment waste gas treatment device, including shell mechanism, the shell mechanism includes operation box main body and fixedly connected in operation box main body intake end intake pipe, the exhaust pipe is fixedly connected in the exhaust end of operation box main body, the inside of operation box main body is divided into three chambers by fixedly connected with first baffle and second baffle, three the chamber is respectively filter cavity formed by the interval between operation box main body and first baffle, working cavity formed by the interval between first baffle and second baffle, heating cavity formed by the interval between operation box main body and second baffle, the inside of operation box main body is provided with adjusting mechanism for adjusting gas flow, the outside wall of operation box main body is provided with filter mechanism for adsorbing harmful substance of gas.

[0006] As the preferred technical scheme of the above, the adjusting mechanism is arranged inside the working cavity, the adjusting mechanism comprises a guide plate fixedly connected to the first blocking plate on the side close to the second blocking plate, a blocking plate symmetrically sleeved on the side of the guide plate away from the first blocking plate, a guide rod fixedly connected to the side of the blocking plate away from the guide plate, and an arc-shaped plate fixedly connected to the outer side wall of the guide plate at both sides of the blocking plate, and the outer side wall of the arc-shaped plate is rotatably sleeved with a first gear, and the outer side wall of the first gear is symmetrically provided with a guide groove sleeved with the guide rod.

[0007] As the preferred technical scheme of the above, the adjusting mechanism further comprises a driving motor fixedly connected to the side of the second blocking plate close to the first blocking plate, a driving rod fixedly connected to the output end of the driving motor, a second gear fixedly connected to the end of the driving rod and engaged with the first gear, and a gas guide pipe rotatably sleeved with the end of the first gear, and the other end of the gas guide pipe is fixedly connected with the second blocking plate.

[0008] As the preferred technical scheme of the above, a gas hole is formed at the center of the guide plate, and the gas hole penetrates the first blocking plate, and the center of the gas guide pipe and the center of the gas hole are located at the same point.

[0009] As the preferred technical scheme of the above, the filtering mechanism comprises a liquid tank fixedly connected to the outer side wall of the working box body on the side of the air inlet pipe, a liquid pump fixedly connected to the upper end surface of the liquid tank, a liquid suction pipe fixedly connected to the liquid suction end of the liquid pump and extending into the liquid tank, and a liquid discharge pipe fixedly connected to the liquid discharge end of the liquid pump.

[0010] As the preferred technical scheme of the above, the inner top end of the working box body is fixedly connected with a plurality of fixed supports at the region of the filtering cavity, the lower end surface of every two fixed supports is fixedly connected with an atomizer, the end of the liquid discharge pipe is connected with the liquid inlet end of one of the atomizers, and each atomizer is connected with a liquid guide pipe to realize the flow of fluid.

[0011] As the preferred technical scheme of the above, the liquid discharge end of the working box body is fixedly connected with a waste liquid pipe, and the inner bottom end of the working box body is fixedly connected with an electric heater for drying gas at the region of the heating cavity.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the utility model, the cross-sectional size of the gas hole can be accurately controlled through the adjusting mechanism, so as to adjust the speed and flow of the gas entering the gas guide pipe and the heating cavity through the gas hole, the process can prolong the residence time of the gas in the heating cavity, so as to promote the further drying of the moisture in the gas, therefore, the discharged gas is not too humid, and potential damage to the exhaust pipe caused by the too high humidity of the gas in the cold season is avoided. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a chemical laboratory waste gas treatment device.

[0015] Figure 2 A cross-sectional view of the main body of the working box in a chemical experimental waste gas treatment device;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the regulating mechanism in a chemical experimental waste gas treatment device.

[0017] Figure 4 This is a schematic diagram of the atomizer structure in a chemical experimental waste gas treatment device.

[0018] In the diagram: 1. Outer shell mechanism; 11. Main body of the working box; 12. Air inlet pipe; 13. Exhaust pipe; 14. Waste liquid pipe; 15. First baffle plate; 16. Second baffle plate; 17. Filter chamber; 18. Working chamber; 19. Heating chamber; 2. Filtering mechanism; 21. Liquid tank; 22. Liquid pump; 23. Liquid suction pipe; 24. Liquid discharge pipe; 25. Fixed bracket; 26. Atomizer; 261. Liquid guide pipe; 27. Electric heater; 3. Adjustment mechanism; 31. Guide plate; 32. Baffle plate; 33. Guide rod; 34. Arc plate; 35. First gear; 351. Guide groove; 36. Drive motor; 361. Drive rod; 362. Second gear; 37. Air guide pipe; 38. Air hole. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a chemical experimental waste gas treatment device, including an outer shell mechanism 1. The outer shell mechanism 1 includes a working box body 11 and an air inlet pipe 12 fixedly connected to the air inlet end of the working box body 11. An exhaust pipe 13 is fixedly connected to the exhaust end of the working box body 11. The interior of the working box body 11 is divided into three chambers by a first baffle plate 15 and a second baffle plate 16 fixedly connected. The three chambers are a filter chamber 17 formed by the working box body 11 and the first baffle plate 15, a working chamber 18 formed by the first baffle plate 15 and the second baffle plate 16, and a heating chamber 19 formed by the working box body 11 and the second baffle plate 16. An adjustment mechanism 3 for adjusting the gas flow rate is provided inside the working box body 11, and a filter mechanism 2 for adsorbing harmful substances in the gas is provided on the outer wall of the working box body 11.

[0021] The scientific separation of the inside of the operation box main body 11 by the first blocking plate 15 and the second blocking plate 16 forms three independent and interrelated cavities of the filtering cavity 17, the working cavity 18 and the heating cavity 19, the large-particle impurities in the exhaust gas can be effectively removed in the filtering cavity 17, which lays a good foundation for subsequent treatment, and the setting of the adjusting mechanism 3 enables the device to accurately adjust the gas flow according to actual needs, thereby ensuring that the exhaust gas can be fully contacted with the reaction medium during the treatment process and improving the treatment effect.

[0022] As shown in Figure 2 and Figure 3 , the adjusting mechanism 3 is arranged in the inside of the working cavity 18, the adjusting mechanism 3 comprises a guide plate 31 fixedly connected to the first blocking plate 15 near the second blocking plate 16, a blocking plate 32 symmetrically and slidingly sleeved to the side of the guide plate 31 away from the first blocking plate 15, a guide rod 33 fixedly connected to the side of the blocking plate 32 away from the guide plate 31, and an arc-shaped plate 34 fixedly connected to the outside wall of the guide plate 31 at both sides of the blocking plate 32, the outside wall of the arc-shaped plate 34 is rotatably sleeved with a first gear 35, the outside wall of the first gear 35 is symmetrically provided with a guide groove 351 slidingly sleeved with the guide rod 33, and the adjusting mechanism 3 further comprises a driving motor 36 fixedly connected to the side of the second blocking plate 16 close to the first blocking plate 15, a driving rod 361 fixedly connected to the output end of the driving motor 36, a second gear 362 fixedly connected to the end of the driving rod 361 and meshing with the first gear 35, a gas guide pipe 37 rotatably sleeved with the end of the first gear 35, and the other end of the gas guide pipe 37 is fixedly connected with the second blocking plate 16, a gas hole 38 is formed in the center of the guide plate 31 and penetrates through the first blocking plate 15, and the center of the gas guide pipe 37 and the gas hole 38 is located at the same point.

[0023] The sliding sleeve design of the guide plate 31 and the blocking plate 32 in the adjusting mechanism 3 enables the blocking plate 32 to move flexibly on the guide plate 31 according to actual needs, thereby changing the effective opening area of the gas hole 38 and realizing accurate adjustment of the gas flow, the rotation speed and direction of the driving motor 36 can be controlled to accurately control the moving speed and position of the blocking plate 32, thereby realizing real-time adjustment of the gas flow, and the automatic adjustment mode not only improves the treatment efficiency but also reduces the labor intensity of the operator, one end of the gas guide pipe 37 is rotatably sleeved with the end of the first gear 35, and the other end is fixedly connected with the second blocking plate 16, so that the gas flow can be adjusted while the pressure inside the working cavity 18 is kept stable, when the blocking plate 32 moves, the gas guide pipe 37 remains stable due to the rotation of the first gear 35, ensuring that the gas flow at the gas hole 38 is always smooth and continuous.

[0024] As shown in Figure 1 , Figure 2 andFigure 4 As shown, the filtering mechanism 2 comprises a liquid tank 21 fixedly connected to the outer side wall of the working box body 11 on the side of the air inlet pipe 12, the upper end face of the liquid tank 21 is fixedly connected with a liquid pump 22, the liquid suction end of the liquid pump 22 is fixedly connected with a liquid suction pipe 23, and the liquid suction pipe 23 extends to the inside of the liquid tank 21, the liquid discharge end of the liquid pump 22 is fixedly connected with a liquid discharge pipe 24, the inner top end of the working box body 11 is fixedly connected with a plurality of fixed supports 25 at the region of the filtering cavity 17, the lower end face of every two fixed supports 25 is fixedly connected with an atomizer 26, the end of the liquid discharge pipe 24 is connected with the liquid inlet end of one of the atomizers 26, each atomizer 26 realizes the flow of fluid by being fixedly connected with a liquid guide pipe 261, the liquid discharge end of the working box body 11 is fixedly connected with a waste liquid pipe 14, and the inner bottom end of the working box body 11 is fixedly connected with an electric heater 27 for drying gas at the region of the heating cavity 19.

[0025] By adopting the above technical scheme, the liquid tank 21 serves as a container for storing filtering liquid, which can continuously provide sufficient filtering liquid for the atomizer 26, the liquid pump 22 serves as a power source, which sends the filtering liquid in the liquid tank 21 to the liquid discharge pipe 24 through the liquid suction pipe 23, and then sends it into the atomizer 26 for atomization treatment, which not only ensures the stable supply of filtering liquid, but also improves the atomization efficiency, so that the filtering liquid can be uniformly and finely sprayed in the waste gas, fully contacts with the harmful substances in the waste gas and reacts, the setting of the waste liquid pipe 14 realizes the timely discharge of the waste liquid generated in the treatment process, avoids the accumulation and secondary pollution of the waste liquid in the device, and in the heating cavity 19, the heat generated by the electric heater 27 can quickly evaporate the moisture in the waste gas, so that the waste gas becomes more dry and pure.

[0026] Working principle: gas enters into the inside of the filter cavity 17 through the gas inlet pipe 12, at this time, the liquid pump 22 can be started to draw the spraying liquid from the inside of the liquid tank 21 through the liquid drawing pipe 23, then the spraying liquid is sent into the atomizer 26 through the liquid outlet pipe 24, and the spraying liquid is atomized and sprayed out by the atomizer 26, and the waste gas in the filter cavity 17 is contacted with the atomized spraying liquid and reacts to absorb the harmful substances in the waste gas, then the gas with the harmful substances removed enters into the inside of the heating cavity 19 through the adjusting mechanism 3 and the gas guide pipe 37, and the electric heater 27 is arranged in the inside of the heating cavity 19, after the electric heater 27, the temperature in the inside of the heating cavity 19 is increased, when the gas enters, the water vapor in the gas can be removed to dry the gas, in order to make the gas dry more completely, the adjusting mechanism 3 can effectively adjust the flow of the gas entering the gas guide pipe 37, the user can start the driving motor 36 to drive the driving rod 361 and the second gear 362 to rotate, because the second gear 362 is engaged with the first gear 35, when the first gear 35 rotates, the guide rod 33 can be driven to move in an arc shape through the guide groove 351, because the guide rod 33 is fixedly connected with the blocking plate 32, the two blocking plates 32 can move in opposite directions at the same time, at this time, because the guide rod 33 moves, the gas hole 38 is no longer blocked, and the gas can move from the interval between the two guide rods 33 to enter the inside of the gas guide pipe 37, in this way, the flow of the gas entering the gas guide pipe 37 can be quickly adjusted.

[0027] The above examples are only used to illustrate the technical scheme of the utility model, and not to limit it.

Claims

1. A chemical experiment waste gas treatment device, comprising a shell mechanism (1), characterized in that: The shell mechanism (1) includes a work box body (11) and an air inlet pipe (12) fixedly connected to the air inlet end of the work box body (11), the air outlet end of the work box body (11) is fixedly connected with an air outlet pipe (13), the inside of the work box body (11) is divided into three chambers by the first blocking plate (15) and the second blocking plate (16) fixedly connected, the three chambers are respectively a filtering chamber (17) formed by the interval between the work box body (11) and the first blocking plate (15), a working chamber (18) formed by the interval between the first blocking plate (15) and the second blocking plate (16), and a heating chamber (19) formed by the interval between the work box body (11) and the second blocking plate (16), the inside of the work box body (11) is provided with an adjusting mechanism (3) for adjusting the gas flow, and the outer side wall of the work box body (11) is provided with a filtering mechanism (2) for adsorbing harmful substances in the gas.

2. The chemical experiment waste gas treatment device according to claim 1, characterized in that: The adjusting mechanism (3) is arranged in the working chamber (18), and the adjusting mechanism (3) includes a guide plate (31) fixedly connected to the side of the first blocking plate (15) close to the second blocking plate (16), the side of the guide plate (31) away from the first blocking plate (15) is symmetrically sleeved with a blocking plate (32), the side of the blocking plate (32) away from the guide plate (31) is fixedly connected with a guide rod (33), the outer side wall of the guide plate (31) is fixedly connected with an arc-shaped plate (34) on both sides of the blocking plate (32), the outer side wall of the arc-shaped plate (34) is rotatably sleeved with a first gear (35), and the outer side wall of the first gear (35) is symmetrically provided with a guide groove (351) sleeved with the guide rod (33).

3. The chemical experiment waste gas treatment device according to claim 2, characterized in that: The adjusting mechanism (3) further includes a driving motor (36) fixedly connected to the side of the second blocking plate (16) close to the first blocking plate (15), the output end of the driving motor (36) is fixedly connected with a driving rod (361), the end of the driving rod (361) is fixedly connected with a second gear (362) in meshing transmission with the first gear (35), the end of the first gear (35) is rotatably sleeved with an air guide pipe (37), and the other end of the air guide pipe (37) is fixedly connected with the second blocking plate (16).

4. The chemical experiment waste gas treatment device according to claim 3, characterized in that: A gas hole (38) is formed in the center of the guide plate (31), and the gas hole (38) penetrates the first blocking plate (15), and the center of the air guide pipe (37) and the gas hole (38) are located at the same point.

5. The chemical experiment waste gas treatment device according to claim 1, characterized in that: The filtering mechanism (2) includes a liquid tank (21) fixedly connected to the outer side wall of the work box body (11) on the side of the air inlet pipe (12), the upper end surface of the liquid tank (21) is fixedly connected with a liquid pump (22), the liquid pumping end of the liquid pump (22) is fixedly connected with a liquid pumping pipe (23), and the liquid pumping pipe (23) extends into the inside of the liquid tank (21), and the liquid discharging end of the liquid pump (22) is fixedly connected with a liquid discharging pipe (24).

6. The chemical experiment waste gas treatment device according to claim 5, characterized in that: The inner top end of the work box body (11) is fixedly connected with a plurality of fixed supports (25) at the area of the filtering cavity (17), the lower end surface of every two fixed supports (25) is fixedly connected with an atomizer (26), the end of the liquid discharge pipe (24) is connected with the liquid inlet end of one of the atomizers (26), and every atomizer (26) realizes the flow of fluid by being fixedly connected with a liquid guide pipe (261).

7. The chemical experiment waste gas treatment device according to claim 1, characterized in that: The liquid discharge end of the work box body (11) is fixedly connected with a waste liquid pipe (14), and the inner bottom end of the work box body (11) is fixedly connected with an electric heater (27) for drying gas at the area of the heating cavity (19).

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