Tail gas treatment device for chemical safety production

Abstract

The invention discloses a chemical safety production tail gas treatment device, and belongs to the technical field of chemical tail gas treatment, the chemical safety production tail gas treatment device comprises a treatment box, one side of the treatment box is communicated with a gas inlet pipe, a waste heat recovery mechanism is arranged in the gas inlet pipe, the waste heat recovery mechanism comprises a fixing plate, an electric push rod, a cylinder and a water pump, and the cylinder is fixedly installed at the output end of the electric push rod; a plurality of groups of spiral flow deflectors are fixedly mounted in the cylinder; arc-shaped protrusions are integrally formed on the inner wall of the top and the inner wall of the bottom of the air inlet pipe, and inclined holes are formed in the top and the bottom of the air inlet pipe. The efficient waste heat recovery function is integrated in the tail gas treatment process, produced hot water can be used for other procedures, energy recycling is achieved, meanwhile, the tail gas temperature is reduced, more stable and favorable conditions are created for subsequent chemical absorption treatment, and the energy utilization rate and economical efficiency of the production process are overall improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical tail gas treatment, and in particular to a chemical safe production tail gas treatment device. BACKGROUND

[0002] In the chemical production process, process tail gas containing various harmful components will inevitably be produced, and effective treatment of these tail gases is a key link to achieve green and safe production. At present, the widely used tail gas treatment equipment mostly adopts the form of spray tower or packed tower, and its basic principle is to make the tail gas fully contact with the chemical absorption liquid sprayed in the tower, and remove the pollutants through chemical reaction. Common absorption liquids include alkaline solution for neutralizing acidic gas and oxidizing solution for treating reducing gas, etc. In order to improve the treatment efficiency, some equipment will try to combine the absorption liquids of different properties, or add physical cyclone plates, packing layers and other components to increase the gas-liquid contact area.

[0003] However, the prior art has several obvious drawbacks. First, most of the equipment lacks effective recovery means for the large amount of low-temperature waste heat carried by the tail gas itself, and the energy is directly wasted, and the high-temperature tail gas is not conducive to the stable performance of subsequent chemical absorption. Second, the addition of treatment reagents usually depends on the fixed pumping rate, and cannot be self-adaptively adjusted according to the real-time flow or concentration of the tail gas, often leading to excessive consumption of reagents at low load or incomplete treatment at high load. Third, the gas-liquid mixing efficiency is often insufficient, and the uneven distribution of tail gas in the tower can easily form a short circuit, and the contact time with the absorption liquid is short and insufficient. In addition, simple mixing or sequential addition of absorption liquids of different properties can lead to mutual interference between reagents. Finally, many systems lack intelligent feedback mechanisms based on the final emission quality, making it difficult to continuously and stably meet the increasingly stringent environmental emission standards. Therefore, we propose a chemical safe production tail gas treatment device to solve this problem. SUMMARY

[0004] The purpose of the present application is to provide a chemical safe production tail gas treatment device to solve the problems raised in the background art.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: A chemical safe production tail gas treatment device, comprising: a treatment box, one side of the treatment box is communicated with an air inlet pipe, a waste heat recovery mechanism is arranged in the air inlet pipe, the waste heat recovery mechanism comprises: a fixed plate, an electric push rod, a cylinder and a water pump, the cylinder is fixedly installed on the output end of the electric push rod, and a plurality of groups of spiral guide vanes are fixedly installed in the interior of the cylinder; The top and bottom inner walls of the air inlet pipe are integrally formed with arc-shaped protrusions. The top and bottom of the air inlet pipe are provided with oblique holes. The top and bottom of the air inlet pipe are provided with negative pressure detection mechanisms. The processing box is provided with a dispersion mechanism. The top of the processing box is provided with a conveying mechanism, a first liquid storage tank, and a second liquid storage tank.

[0006] Preferably, the negative pressure detection mechanism includes: a sealing frame, a sealing plate, a pressure plate, and a pressure-sensitive resistor. The sealing frame is fixedly installed on the outside of the air inlet pipe. The sealing frame is connected to one end of the corresponding oblique hole. The sealing plate is slidably and sealingly installed inside the sealing frame. A vertical rod is fixedly installed between the pressure plate and the sealing plate. The pressure-sensitive resistor is disposed between the sealing frame and the pressure plate. A connecting spring is fixedly installed on one side of the sealing plate. The other end of the connecting spring is fixedly installed on the inner wall of the sealing frame. Ventilation holes are provided on both sides of the sealing frame.

[0007] Preferably, the dispersing mechanism includes: a drive shaft and two driven shafts. A paddle is fixedly sleeved on the outer side of the drive shaft. A drive pulley is fixedly installed at the front end of the drive shaft. A helical blade is fixedly sleeved on the outer side of the driven shaft. A driven pulley is fixedly installed at the front end of the driven shaft. The same belt is driven and installed on the drive pulley and the two driven pulleys. Both the drive shaft and the driven shafts are rotatably installed inside the processing box.

[0008] Preferably, the conveying mechanism includes: a drive shaft, a drive motor, a conveying box, and two piston plates. A vertical partition is fixedly installed inside the conveying box, and the two piston plates are slidably installed inside the conveying box. The two piston plates are respectively provided on both sides of the vertical partition, and a connecting plate is hinged to the top of the piston plates. Two positioning shafts are rotatably installed on the front inner wall of the conveyor box. A connecting plate is fixedly installed at the rear end of the positioning shaft. Two rotating shafts are rotatably installed on the rear side of the conveyor box. A turntable is fixedly installed at the front end of the rotating shaft. A connecting column is fixedly installed between the turntable and the connecting plate on the same side. The top end of the connecting plate is rotatably sleeved on the outside of the corresponding connecting column. A driven bevel gear is fixedly installed at the other end of the rotating shaft, and two driving bevel gears are fixedly installed on the drive shaft. The driving bevel gears mesh with the corresponding driven bevel gears. One end of the drive shaft is fixedly installed on the output shaft of the drive motor, and the drive motor is connected in series with the varistor.

[0009] Preferably, both sides of the conveying box are connected to inlet pipes, and a first one-way valve is installed in the inlet pipe. The other ends of the two inlet pipes are respectively connected to a first liquid storage tank and a second liquid storage tank. The top of the first liquid storage tank and the second liquid storage tank are provided with liquid filling ports. Both sides of the bottom of the conveying box are connected to outlet pipes, and a second one-way valve is installed on the outlet pipe.

[0010] Preferably, the processing box is internally fixedly equipped with an upper partition, a lower partition, and two spray cylinders. The two spray cylinders are respectively arranged on both sides of the upper partition. A gap is provided between the upper partition and the lower partition. Multiple atomizing nozzles are connected to the bottom of the spray cylinders. The other end of the liquid outlet pipe is connected to the corresponding spray cylinder.

[0011] Preferably, the front side of the treatment box is connected to a drain pipe and an exhaust pipe, a gas concentration sensor is installed in the exhaust pipe, and a controller is fixedly installed on the front side of the treatment box.

[0012] Preferably, an inlet pipe and an outlet pipe are fixedly installed on the front and rear sides of the treatment box, respectively. One end of the inlet pipe and the outlet pipe are slidably installed on one side of the cylinder. The electric push rod is fixedly installed inside the fixed plate, and the fixed plate is fixedly installed inside the air inlet pipe. The other end of the inlet pipe is connected to a water pump, and the water pump is fixedly installed on the front side of the treatment box.

[0013] Preferably, the air inlet pipe includes: a circular pipe section, a square pipe section, and a transition section, wherein the transition section is connected between the circular pipe section and the square pipe section, the first liquid storage tank is provided with an alkaline absorbent, and the second liquid storage tank is provided with an oxidizing absorbent.

[0014] The beneficial effects of this invention are as follows: 1. The chemical safety production tail gas treatment device of the present invention integrates a highly efficient waste heat recovery function in the tail gas treatment process. When the tail gas enters the treatment device, it first flows through a special structure in the inlet pipe. This structure is equipped with a cylindrical heat exchanger with spiral guide vanes. A water pump pumps cold water into the cylinder. The heat carried by the high-temperature tail gas is transferred to the cold water through the cylinder wall. The spiral guide vanes greatly enhance the turbulence effect and residence time of the cold water, thereby significantly improving the heat exchange efficiency. This process not only effectively recovers the waste heat in the tail gas and produces hot water that can be used in other processes, realizing the recycling of energy, but also reduces the tail gas temperature, creating more stable and favorable conditions for subsequent chemical absorption treatment, thereby improving the overall energy utilization rate and economy of the production process. 2. The chemical safety production tail gas treatment device of this invention realizes automatic intelligent adjustment of the dosage of treatment agent, which is precisely matched with the tail gas inlet conditions. Its core lies in the unique negative pressure detection mechanism. When the tail gas flow rate changes, it will trigger the open channel effect, causing the gas pressure in the detection chamber to change, and then change the resistance value of the pressure-sensitive resistor through mechanical transmission. Since the circuit driving the agent delivery motor is connected in series with the resistor, the change in resistance value is directly converted into a change in motor speed. The faster the tail gas flow rate, the higher the motor speed, and the faster the frequency of the piston pump delivering the absorbent liquid, and the spray volume increases accordingly. This linkage mechanism based on direct feedback of physical signals does not require the participation of complex electronic sensors and controllers. It is fast and reliable, ensuring that the dosage of agent always maintains a dynamic balance with the tail gas treatment needs under different production loads, which avoids both insufficient treatment and agent waste. 3. In this invention, the chemical safety production tail gas treatment device significantly improves the mixing and contact efficiency of the gas and liquid phases through ingenious mechanical design. After pretreatment, the tail gas enters the main reaction zone of the treatment tank. It first passes through a narrow channel with a sudden change in cross-section, causing a rapid increase in flow velocity, which impacts and drives a drive shaft with paddles to rotate. The drive shaft drives the driven shafts on both sides to rotate synchronously through a pulley set. The spiral blades on the driven shafts completely disperse and redistribute the accumulated tail gas, forming a uniform turbulent airflow. At the same time, alkaline and oxidizing absorbent liquids from different storage tanks are atomized and sprayed down. The thoroughly dispersed tail gas and the extremely fine absorbent droplets come into full countercurrent contact, and the contact surface area increases by orders of magnitude, making the neutralization, oxidation-reduction and other chemical reactions more rapid and thorough, thereby greatly enhancing the simultaneous purification effect on multiple pollutants. 4. The chemical safety production tail gas treatment device described in this invention can efficiently and synergistically treat multiple pollutants in the tail gas. The device is equipped with two independent storage tanks, which store alkaline absorbent liquid for acidic gases and oxidizing absorbent liquid for reducing gases, respectively. Through a double-cylinder piston pump structure, the two absorbent liquids are pumped independently and synchronously to two corresponding spray cylinders in the treatment tank. This design allows the absorbent liquids with different chemical properties to be separated in space, and they are only mixed with the tail gas through their respective atomizing nozzles in the final stage. This effectively avoids premature reaction or failure of different agents during transportation and storage, ensuring that each agent can act on its target pollutant with optimal activity, and achieving targeted deep purification of complex industrial tail gas. 5. In this invention, a chemical safety production tail gas treatment device is provided. In the final stage of gas emission, a highly sensitive gas concentration sensor is installed in the exhaust pipe to continuously monitor the cleanliness of the purified gas in real time. The monitoring signal is transmitted to the controller in real time. When the pollutant concentration exceeds the standard, the controller immediately activates the intervention mechanism, driving the electric push rod in the intake pipe to finely adjust the position of the heat exchange cylinder, thereby changing the gap of the airflow channel. This adjustment will locally increase the airflow velocity, which in turn increases the amount of absorbent sprayed through the negative pressure detection mechanism, forming a correction effect. This feedback control based on the quality of end emission enables the system to have self-correction capability, cope with fluctuations in tail gas composition or concentration, and ensure compliance with emission standards under long-term stable operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a chemical safety production tail gas treatment device proposed in this invention. Figure 2 This is a cross-sectional structural schematic diagram of a chemical safety production tail gas treatment device proposed in this invention; Figure 3 This is a three-dimensional structural diagram of the air intake pipe and waste heat recovery mechanism proposed in this invention; Figure 4 This is a cross-sectional structural schematic diagram of the waste heat recovery mechanism proposed in this invention; Figure 5 This is a top cross-sectional view of the waste heat recovery mechanism proposed in this invention; Figure 6 for Figure 5 A magnified view of part A in the middle; Figure 7 This is a cross-sectional structural schematic diagram of the negative pressure detection mechanism proposed in this invention; Figure 8 This is a three-dimensional structural diagram of the dispersing mechanism proposed in this invention; Figure 9 This is a three-dimensional structural diagram of the conveying mechanism proposed in this invention; Figure 10 This is a cross-sectional structural schematic diagram of the conveying mechanism proposed in this invention; Figure 11 for Figure 10 A magnified view of part B in the middle section; Figure 12 This is a top sectional view of the conveying mechanism proposed in this invention; Figure 13 for Figure 12 A magnified view of part C in the middle.

[0016] In the diagram: 1. Processing box; 101. Lower partition; 102. Upper partition; 2. Air inlet pipe; 201. Arc-shaped protrusion; 202. Slanted hole; 3. Waste heat recovery mechanism; 301. Cylinder; 302. Spiral guide vane; 303. Water inlet pipe; 304. Water pump; 305. Water outlet pipe; 306. Fixing plate; 307. Electric push rod; 4. Negative pressure detection mechanism; 401. Sealing frame; 402. Sealing plate; 403. Connecting spring; 404. Vertical rod; 405. Varistor; 406. Pressure plate; 5. Dispersion mechanism; 501. Driven shaft; 502. Spiral blade; 503. Driven pulley; 504. Belt; 505. Driven pulley; 5 06. Drive shaft; 507. Paddle; 6. Conveying mechanism; 601. Conveying box; 602. Vertical partition; 603. Piston plate; 604. Inlet pipe; 605. First check valve; 606. Outlet pipe; 607. Second check valve; 608. Connecting plate; 609. Connecting column; 610. Connecting disc; 611. Positioning shaft; 612. Turntable; 613. Rotating shaft; 614. Driven bevel gear; 615. Driven bevel gear; 616. Drive shaft; 617. Drive motor; 7. Spray cylinder; 701. Atomizing nozzle; 8. First liquid storage tank; 9. Second liquid storage tank; 10. Controller; 11. Exhaust pipe; 12. Gas concentration sensor. Detailed Implementation

[0017] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Reference Figures 1-13 A chemical safety production tail gas treatment device includes: a treatment box 1, an air inlet pipe 2 connected to one side of the treatment box 1, and a waste heat recovery mechanism 3 installed inside the air inlet pipe 2, including: a fixed plate 306, an electric push rod 307, a cylinder 301 and a water pump 304. The cylinder 301 is fixedly installed on the output end of the electric push rod 307, and multiple sets of spiral guide vanes 302 are fixedly installed inside the cylinder 301. The top and bottom inner walls of the air inlet pipe 2 are integrally formed with arc-shaped protrusions 201. The top and bottom of the air inlet pipe 2 are provided with oblique holes 202. The top and bottom of the air inlet pipe 2 are provided with negative pressure detection mechanisms 4. The processing box 1 is provided with a dispersion mechanism 5. The top of the processing box 1 is provided with a conveying mechanism 6, a first liquid storage tank 8, and a second liquid storage tank 9.

[0019] In this embodiment, the negative pressure detection mechanism 4 includes: a sealing frame 401, a sealing plate 402, a pressure plate 406, and a pressure-sensitive resistor 405. The sealing frame 401 is fixedly installed on the outside of the air inlet pipe 2. The sealing frame 401 is connected to one end of the corresponding oblique hole 202. The sealing plate 402 is slidably and sealingly installed inside the sealing frame 401. A vertical rod 404 is fixedly installed between the pressure plate 406 and the sealing plate 402. The pressure-sensitive resistor 405 is disposed between the sealing frame 401 and the pressure plate 406. A connecting spring 403 is fixedly installed on one side of the sealing plate 402. The other end of the connecting spring 403 is fixedly installed on the inner wall of the sealing frame 401. Ventilation holes are provided on both sides of the sealing frame 401.

[0020] In this embodiment, the dispersing mechanism 5 includes: a drive shaft 506 and two driven shafts 501. A paddle 507 is fixedly sleeved on the outer side of the drive shaft 506. A drive pulley 505 is fixedly installed at the front end of the drive shaft 506. A spiral blade 502 is fixedly sleeved on the outer side of the driven shafts 501. A driven pulley 503 is fixedly installed at the front end of the driven shafts 501. The same belt 504 is driven on the drive pulley 505 and the two driven pulleys 503. Both the drive shaft 506 and the driven shafts 501 are rotatably installed in the processing box 1.

[0021] In this embodiment, the conveying mechanism 6 includes: a drive shaft 616, a drive motor 617, a conveying box 601 and two piston plates 603. A vertical partition 602 is fixedly installed inside the conveying box 601. The two piston plates 603 are slidably installed inside the conveying box 601. The two piston plates 603 are respectively provided on both sides of the vertical partition 602. A connecting plate 608 is hinged to the top of the piston plate 603. Two positioning shafts 611 are rotatably mounted on the front inner wall of the conveyor box 601. A connecting plate 610 is fixedly mounted on the rear end of the positioning shaft 611. Two rotating shafts 613 are rotatably mounted on the rear side of the conveyor box 601. A turntable 612 is fixedly mounted on the front end of the rotating shaft 613. A connecting post 609 is fixedly mounted between the turntable 612 and the connecting plate 610 on the same side. The top end of the connecting plate 608 is rotatably sleeved on the outside of the corresponding connecting post 609. A driven bevel gear 614 is fixedly installed at the other end of the rotating shaft 613. Two driving bevel gears 615 are fixedly installed on the drive shaft 616. The driving bevel gears 615 mesh with the corresponding driven bevel gears 614. One end of the drive shaft 616 is fixedly installed on the output shaft of the drive motor 617. The drive motor 617 is connected in series with the varistor 405.

[0022] In this embodiment, both sides of the conveying box 601 are connected to inlet pipes 604, and a first one-way valve 605 is installed in the inlet pipes 604. The other ends of the two inlet pipes 604 are connected to the first storage tank 8 and the second storage tank 9, respectively. The top of the first storage tank 8 and the second storage tank 9 are provided with liquid filling ports. Both sides of the bottom of the conveying box 601 are connected to outlet pipes 606, and a second one-way valve 607 is installed on the outlet pipes 606.

[0023] In this embodiment, an upper partition 102, a lower partition 101, and two spray cylinders 7 are fixedly installed inside the treatment box 1. The two spray cylinders 7 are respectively arranged on both sides of the upper partition 102. A gap is provided between the upper partition 102 and the lower partition 101. Multiple atomizing nozzles 701 are connected to the bottom of the spray cylinder 7. The other end of the liquid outlet pipe 606 is connected to the corresponding spray cylinder 7.

[0024] In this embodiment, the front side of the processing box 1 is connected to a drain pipe and an exhaust pipe 11. A gas concentration sensor 12 is installed inside the exhaust pipe 11, and a controller 10 is fixedly installed on the front side of the processing box 1.

[0025] In this embodiment, an inlet pipe 303 and an outlet pipe 305 are fixedly installed on the front and rear sides of the treatment box 1, respectively. One end of the inlet pipe 303 and the outlet pipe 305 are slidably installed on one side of the cylinder 301. An electric push rod 307 is fixedly installed in a fixing plate 306. The fixing plate 306 is fixedly installed in an air inlet pipe 2. The other end of the inlet pipe 303 is connected to a water pump 304. The water pump 304 is fixedly installed on the front side of the treatment box 1.

[0026] In this embodiment, the air inlet pipe 2 includes a circular pipe section, a square pipe section, and a transition section. The transition section is connected between the circular pipe section and the square pipe section. The first liquid storage tank 8 is provided with alkaline absorbent liquid, and the second liquid storage tank 9 is provided with oxidizing absorbent liquid.

[0027] In this embodiment, during use, the harmful exhaust gas generated during the chemical production process first enters the treatment device through the inlet pipe 2. A waste heat recovery mechanism 3 is installed in the inlet pipe 2. A water pump 304 pumps cold water from the inlet pipe 303 into the internal cavity of the cylinder 301. As the exhaust gas flows through the outside of the cylinder 301, the high-temperature heat it carries is transferred to the cold water inside through the cylinder wall. The spiral guide vane 302 extends the residence time of the cold water inside the cylinder 301 and creates turbulence, greatly improving the heat exchange efficiency. The heated water is discharged from the outlet pipe 305 and can be used for other purposes, thus achieving waste heat recovery. Simultaneously, the exhaust gas itself is also initially cooled, creating more stable conditions for subsequent chemical treatment. The drive motor 617 drives the driven bevel gear 614, the rotating shaft 613, and the turntable 612 to rotate via the drive shaft 616 and the driving bevel gear 615. The turntable 612 drives the connecting plate 608 via the connecting column 609, which in turn pushes the two piston plates 603 to reciprocate linearly within the conveying box 601. When one piston plate 603 is pulled back, a negative pressure is generated in the cavity on that side, and the first one-way valve 605 opens, drawing absorbent from the first storage tank 8 (containing alkaline absorbent for neutralizing acidic gases) and the second storage tank 9 (containing oxidizing absorbent for treating reducing gases). When the piston plate 603 is pushed forward, the pressure in the cavity increases, and the second one-way valve 607 opens, forcing the absorbent through the outlet pipe 606 into the corresponding spray cylinder 7 and spraying it out from the atomizing nozzle 701.

[0028] Simultaneously, as the exhaust gas passes through the gap between the upper baffle 102 and the lower baffle 101, the reduced cross-sectional area increases the flow velocity, thereby driving the paddle 507 to rotate, which in turn drives the drive shaft 506 to rotate. The drive shaft 506 drives the driven shaft 501 and the spiral blade 502 to rotate through the drive pulley 505, belt 504 and driven pulley 503, completely dispersing the accumulated exhaust gas and forming a uniform airflow. This greatly increases the contact area between the exhaust gas and the atomized absorbent liquid. In this area, the absorbent liquid from the two spray cylinders 7 is atomized into extremely fine droplets and sprayed downwards through multiple atomizing nozzles 701 at the bottom. The exhaust gas comes into countercurrent contact with the alkaline liquid and oxidizing liquid droplets, undergoing full neutralization, oxidation-reduction and other chemical reactions. The harmful components (such as SO2, H2S, NOx, etc.) are captured and degraded by the absorbent liquid. When the exhaust gas flows in the intake pipe 2, it passes through the gap between the arc-shaped protrusion 201 and the cylinder 301, reducing the local flow area and thus making the gas evenly distributed in the front-to-back direction, facilitating subsequent spraying treatment. This also increases the local flow velocity, generating a certain negative pressure (i.e., pressure lower than atmospheric pressure). External air enters through the vents on the sealing frame 401, essentially balancing the air pressure on both sides of the sealing plate 402. Simultaneously, the sealing plate 402, via the vertical rod 404, drives the pressure plate 406 to compress the pressure-sensitive resistor 405, causing the pressure-sensitive resistor to... The resistance value of 405 decreases. Since the drive motor 617 is connected in series with the varistor 405, this change will cause the circuit resistance of the drive motor 617 to decrease, thereby increasing the output speed of the drive motor 617. When the intake speed of the exhaust gas increases, the negative pressure generated in the sealing frame 401 will increase, thereby further increasing the pressure on the varistor 405, which in turn increases the output speed of the drive motor 617, and thus increases the frequency of the piston plate 603 moving up and down, thereby increasing the amount of absorbent liquid injected to meet the needs of exhaust gas treatment. The purified gas continues to rise and is finally discharged through the exhaust pipe 11. The gas concentration sensor 12 in the exhaust pipe 11 monitors whether the emission meets the standard in real time and feeds the data back to the controller 10. When the emission does not meet the standard, the controller 10 controls the output end of the electric push rod 307 to extend, so that the cylinder 301 moves horizontally. The gap between the cylinder 301 and the arc-shaped protrusion 201 becomes smaller, which further increases the gas flow rate in the gap, and then further increases the amount of absorbent liquid injected until the emission meets the standard.

[0029] The above provides a detailed description of a chemical safety production tail gas treatment device provided by the present invention. Specific embodiments have been used to illustrate the principles and implementation methods of the invention. These embodiments are merely illustrative and are intended to help understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A chemical safety production tail gas treatment device, characterized in that, include: The processing box (1) is connected to an air inlet pipe (2) on one side. The air inlet pipe (2) is equipped with a waste heat recovery mechanism (3), which includes: a fixed plate (306), an electric push rod (307), a cylinder (301) and a water pump (304). The cylinder (301) is fixedly installed on the output end of the electric push rod (307). Multiple sets of spiral guide vanes (302) are fixedly installed inside the cylinder (301). The top and bottom inner walls of the air inlet pipe (2) are integrally formed with arc-shaped protrusions (201). The top and bottom of the air inlet pipe (2) are provided with oblique holes (202). The top and bottom of the air inlet pipe (2) are provided with negative pressure detection mechanisms (4). The processing box (1) is provided with a dispersion mechanism (5). The top of the processing box (1) is provided with a conveying mechanism (6), a first liquid storage tank (8) and a second liquid storage tank (9).

2. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The negative pressure detection mechanism (4) includes: a sealing frame (401), a sealing plate (402), a pressure plate (406), and a pressure-sensitive resistor (405). The sealing frame (401) is fixedly installed on the outside of the air inlet pipe (2). The sealing frame (401) is connected to one end of the corresponding oblique hole (202). The sealing plate (402) is slidably and sealingly installed inside the sealing frame (401). A vertical rod (404) is fixedly installed between the pressure plate (406) and the sealing plate (402). The pressure-sensitive resistor (405) is arranged between the sealing frame (401) and the pressure plate (406). A connecting spring (403) is fixedly installed on one side of the sealing plate (402). The other end of the connecting spring (403) is fixedly installed on the inner wall of the sealing frame (401). Ventilation holes are opened on both sides of the sealing frame (401).

3. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The dispersing mechanism (5) includes: a drive shaft (506) and two driven shafts (501). A paddle (507) is fixedly sleeved on the outside of the drive shaft (506). A drive pulley (505) is fixedly installed at the front end of the drive shaft (506). A spiral blade (502) is fixedly sleeved on the outside of the driven shaft (501). A driven pulley (503) is fixedly installed at the front end of the driven shaft (501). The same belt (504) is driven on the drive pulley (505) and the two driven pulleys (503). The drive shaft (506) and the driven shaft (501) are both rotatably installed in the processing box (1).

4. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The conveying mechanism (6) includes: a drive shaft (616), a drive motor (617), a conveying box (601), and two piston plates (603). A vertical partition (602) is fixedly installed inside the conveying box (601). The two piston plates (603) are slidably installed inside the conveying box (601). The two piston plates (603) are respectively provided on both sides of the vertical partition (602). A connecting plate (608) is hinged to the top of the piston plate (603). Two positioning shafts (611) are rotatably mounted on the inner front wall of the conveyor box (601). A connecting plate (610) is fixedly mounted on the rear end of the positioning shaft (611). Two rotating shafts (613) are rotatably mounted on the rear side of the conveyor box (601). A turntable (612) is fixedly mounted on the front end of the rotating shaft (613). A connecting column (609) is fixedly mounted between the turntable (612) and the connecting plate (610) on the same side. The top end of the connecting plate (608) is rotatably sleeved on the outside of the corresponding connecting column (609). The other end of the rotating shaft (613) is fixedly mounted with a driven bevel gear (614), and two driving bevel gears (615) are fixedly mounted on the drive shaft (616). The driving bevel gears (615) mesh with the corresponding driven bevel gears (614). One end of the drive shaft (616) is fixedly mounted on the output shaft of the drive motor (617), and the drive motor (617) is connected in series with the varistor (405).

5. The chemical safety production tail gas treatment device according to claim 4, characterized in that, Both sides of the delivery box (601) are connected to inlet pipes (604), and a first check valve (605) is installed in the inlet pipe (604). The other ends of the two inlet pipes (604) are connected to the first storage tank (8) and the second storage tank (9) respectively. The top of the first storage tank (8) and the second storage tank (9) are provided with liquid filling ports. Both sides of the bottom of the delivery box (601) are connected to outlet pipes (606), and a second check valve (607) is installed on the outlet pipe (606).

6. The chemical safety production tail gas treatment device according to claim 5, characterized in that, The processing box (1) is fixedly installed with an upper partition (102), a lower partition (101) and two spray cylinders (7). The two spray cylinders (7) are respectively arranged on both sides of the upper partition (102). A gap is provided between the upper partition (102) and the lower partition (101). The bottom of the spray cylinder (7) is connected to multiple atomizing nozzles (701). The other end of the liquid outlet pipe (606) is connected to the corresponding spray cylinder (7).

7. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The front side of the processing box (1) is connected to a drain pipe and an exhaust pipe (11). A gas concentration sensor (12) is installed inside the exhaust pipe (11). A controller (10) is fixedly installed on the front side of the processing box (1).

8. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The front and rear sides of the treatment box (1) are respectively fixedly installed with an inlet pipe (303) and an outlet pipe (305). One end of the inlet pipe (303) and the outlet pipe (305) are slidably installed on one side of the cylinder (301). The electric push rod (307) is fixedly installed in the fixed plate (306). The fixed plate (306) is fixedly installed in the air inlet pipe (2). The other end of the inlet pipe (303) is connected to the water pump (304). The water pump (304) is fixedly installed on the front side of the treatment box (1).

9. The chemical safety production tail gas treatment device according to claim 1, characterized in that, The air inlet pipe (2) includes a round pipe section, a square pipe section and a transition section. The transition section is connected between the round pipe section and the square pipe section. The first liquid storage tank (8) is provided with an alkaline absorbent liquid, and the second liquid storage tank (9) is provided with an oxidizing absorbent liquid.

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