A tail gas treatment device for PVC gloves production and its control method

Abstract

The present invention discloses an exhaust gas treatment device for PVC glove production and a control method thereof, belonging to the technical field of PVC glove production equipment, comprising a treatment tank, a scraper mechanism is provided in the middle of the treatment tank, the scraper mechanism comprises a rotating shaft rotatably installed in the middle of the treatment tank, an impeller is movably installed on the outer wall of the rotating shaft, an air inlet pipe faces the impeller, a scraper is fixedly connected to the outer wall of the rotating shaft, a filler located above the scraper mechanism is installed on the inner side of the treatment tank, and a sprayer is provided above the filler. The present invention is provided with a heat exchanger, a cyclone separator and an exhaust gas treatment mechanism, the exhaust gas generated by the production of PVC gloves first enters the heat exchanger for cooling, then enters the cyclone separator to remove large particle impurities therein, and finally enters the treatment tank through the air inlet pipe, the solvent is sprayed in the treatment tank through the sprayer, the exhaust gas with impurities removed is absorbed, and the exhaust gas is collected at the bottom of the treatment tank under the action of gravity, and is recycled through the recovery pipe.

Description

Technical Field

[0001] The present invention relates to a PVC glove production device, in particular to an exhaust gas treatment device for PVC glove production and a control method thereof, belonging to the technical field of PVC glove production equipment. Background Art

[0002] During the production of PVC gloves, a large amount of tail gas containing VOCs is generated, which contains a large amount of gas phase viscosity reducers and other organic substances. The current methods for treating tail gas generated in the production of PVC gloves mainly include direct discharge after simple treatment, discharge after washing, or thermal destruction.

[0003] Existing treatment methods cannot recycle and reuse tail gas, cannot meet emission index requirements, and are inconvenient to clean the inner wall of the treatment tank.

[0004] To solve this problem, the present invention proposes a new solution. Summary of the invention

[0005] The main purpose of the present invention is to solve the deficiencies of the prior art and provide an exhaust gas treatment device for PVC glove production.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A tail gas treatment device for PVC glove production, comprising a heat exchanger, a cyclone separator and a tail gas treatment mechanism connected in sequence, the tail gas treatment mechanism comprising a treatment tank, the top of the treatment tank is connected with an outlet pipe, the bottom of the treatment tank is connected with a recovery pipe, one side of the treatment tank is connected with an inlet pipe interconnected with the cyclone separator, a scraper mechanism is provided in the middle of the treatment tank, the scraper mechanism comprises a rotating shaft rotatably mounted in the middle of the treatment tank, an impeller is movably mounted on the outer wall of the rotating shaft, the inlet pipe faces the impeller, a scraper is fixedly connected to the outer wall of the rotating shaft, a filler located above the scraper mechanism is installed on the inner side of the treatment tank, and a sprayer is provided above the filler.

[0008] Preferably, a wire mesh demister is installed on the inner side of the treatment tank and is located above the sprayer.

[0009] Preferably, a connecting frame rotatably connected to the rotating shaft is fixedly connected to the inner wall of the processing tank, an auxiliary frame is connected to the bottom of the connecting frame, and the impeller is installed between the connecting frame and the auxiliary frame.

[0010] Preferably, a slope is fixedly connected to the top of the auxiliary frame.

[0011] Preferably, the impeller comprises a sleeve sleeved on the outer wall of the rotating shaft, a plurality of blades are connected to the outer wall of the sleeve, and a sliding rod cooperating with the ramp is fixedly connected to the outer wall of the sleeve.

[0012] Preferably, a rotating wheel is rotatably mounted on one end of the sliding rod away from the sleeve.

[0013] Preferably, a limit strip is connected to the outer wall of the rotating shaft, and a limit groove cooperating with the limit strip is formed on the sleeve.

[0014] Preferably, a spring sleeved on the outside of the rotating shaft is provided between the top of the impeller and the connecting frame.

[0015] Preferably, two scrapers are provided, a threaded sleeve threadedly connected to the bottom of the rotating shaft is fixedly connected between the two scrapers, a nut is threadedly connected to the bottom end of the rotating shaft, and a maintenance hole is provided on the processing tank.

[0016] A control method for an exhaust gas treatment device for PVC glove production, comprising:

[0017] Step 1: The tail gas generated by the production of PVC gloves first enters the heat exchanger for cooling, then enters the cyclone separator to remove large particles of impurities, and finally enters the treatment tank through the intake pipe;

[0018] Step 2: In the treatment tank, the exhaust gas blows onto the impeller to drive the rotating shaft to rotate, thereby driving the scraper to clean the inner wall of the treatment tank and remove the oil stains attached thereon. At the same time, it will drive the slide bar to slide on the slope to slow down the exhaust gas speed. The slide bar periodically passes through the slope, and the impeller will periodically rise and fall to generate vibration, shaking off the droplets adhering to the impeller, the connecting frame and the auxiliary frame;

[0019] Step 3: When the tail gas rises and passes through the filler, the sprayer is connected to the solvent for spraying. The solvent absorbs the viscosity reducer in the tail gas and recovers it through the recovery pipe. The absorbed tail gas passes through the wire mesh demister to remove the mist and is discharged from the outlet pipe.

[0020] Beneficial technical effects of the present invention: According to the exhaust gas treatment device for PVC glove production of the present invention, through the arrangement of the heat exchanger, the cyclone separator and the exhaust gas treatment mechanism, the exhaust gas generated by the production of PVC gloves first enters the heat exchanger for cooling, then enters the cyclone separator to remove large particle impurities therein, and finally enters the treatment tank through the air intake pipe, and the solvent is sprayed by the sprayer in the treatment tank to absorb the exhaust gas with impurities removed, and is collected at the bottom of the treatment tank under the action of gravity, and is recycled through the recovery pipe; through the arrangement of the scraper mechanism, the exhaust gas is blown on the impeller to drive the rotating shaft to rotate, thereby driving the scraper to clean the inner wall of the treatment tank and remove the oil stains attached thereon, and at the same time, it will drive the sliding rod to slide on the slope to decelerate the exhaust gas speed, thereby increasing the contact time between the exhaust gas and the volume and improving the absorption efficiency; the sliding rod periodically passes through the slope, and the impeller will periodically rise and fall to generate vibration, so as to shake off the droplets adhered to the impeller, the connecting frame and the auxiliary frame, and prevent the droplets from adhering to the impeller, and affecting the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of the overall structure of a preferred embodiment provided according to the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of a preferred embodiment provided according to the present invention;

[0023] Figure 3 A schematic diagram of the structure of a scraper mechanism according to a preferred embodiment of the present invention;

[0024] Figure 4 A schematic diagram of a scraper mechanism structure according to a preferred embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a scraper structure according to a preferred embodiment of the present invention;

[0026] Figure 6 The figure is a schematic diagram of an impeller structure according to a preferred embodiment of the present invention.

[0027] In the figure: 1. heat exchanger; 2. cyclone separator; 3. exhaust gas treatment mechanism; 4. treatment tank; 5. outlet pipe; 6. recovery pipe; 7. inlet pipe; 8. rotating shaft; 9. impeller; 10. scraper; 11. packing; 12. sprayer; 13. wire mesh demister; 14. connecting frame; 15. auxiliary frame; 16. ramp; 901. casing; 902. blade; 903. slide rod; 904. rotor; 17. limit strip; 18. limit groove; 19. spring; 20. threaded sleeve; 21. nut. DETAILED DESCRIPTION

[0028] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0029] like Figure 1-Figure 6 As shown, the exhaust gas treatment device for PVC glove production provided in this embodiment, an exhaust gas treatment device for PVC glove production, comprises a heat exchanger 1, a cyclone separator 2 and an exhaust gas treatment mechanism 3 which are connected in sequence, the exhaust gas treatment mechanism 3 comprises a treatment tank 4, the top of the treatment tank 4 is connected with an outlet pipe 5, the bottom of the treatment tank 4 is connected with a recovery pipe 6, one side of the treatment tank 4 is connected with an intake pipe 7 which is interconnected with the cyclone separator 2, a scraper mechanism is provided in the middle of the treatment tank 4, the scraper mechanism comprises a rotating shaft 8 rotatably mounted in the middle of the treatment tank 4, an impeller 9 is movably mounted on the outer wall of the rotating shaft 8, the intake pipe 7 faces the impeller 9, a scraper 10 is fixedly connected to the outer wall of the rotating shaft 8, a filler 11 located above the scraper mechanism is installed on the inner side of the treatment tank 4, and a sprayer 12 is provided above the filler 11. Through the arrangement of the heat exchanger 1, the cyclone separator 2 and the tail gas treatment mechanism 3, the tail gas generated by the production of PVC gloves first enters the heat exchanger 1 for cooling, then enters the cyclone separator 2 to remove large particles of impurities therein, and finally enters the treatment tank 4 through the air inlet pipe 7, where the solvent is sprayed by the sprayer 12 to absorb the tail gas with impurities removed, and is collected at the bottom of the treatment tank 4 under the action of gravity, and is recycled through the recovery pipe 6; through the arrangement of the scraper mechanism, the tail gas blows on the impeller 9 to drive the rotating shaft 8 to rotate, thereby driving the scraper 10 to clean the inner wall of the treatment tank 4 and remove the oil stains attached thereto, and at the same time, it will drive the slide bar 903 to slide on the slope 16 to decelerate the speed of the tail gas, thereby increasing the contact time between the tail gas and the volume and improving the absorption efficiency; the slide bar 903 periodically passes through the slope 16, and the impeller 9 will periodically rise and fall to generate vibration, so as to shake off the droplets adhering to the impeller 9, the connecting frame 14 and the auxiliary frame 15, so as to prevent the droplets from adhering to the impeller 9, affecting the use.

[0030] In this embodiment, if Figure 1 and Figure 2 As shown, a wire mesh demister 13 located above the sprayer 12 is installed inside the treatment tank 4. The wire mesh demister 13 is provided to remove water mist in the tail gas.

[0031] In this embodiment, if Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a connecting frame 14 rotatably connected to the rotating shaft 8 is fixedly connected to the inner wall of the processing tank 4, an auxiliary frame 15 is connected to the bottom of the connecting frame 14, the impeller 9 is installed between the connecting frame 14 and the auxiliary frame 15, and a slope 16 is fixedly connected to the top of the auxiliary frame 15. The impeller 9 includes a sleeve 901 sleeved on the outer wall of the rotating shaft 8, and a plurality of blades 902 are connected to the outer wall of the sleeve 901. A slide bar 903 cooperating with the slope 16 is fixedly connected to the outer wall of the sleeve 901, and a rotating wheel 904 is rotatably installed on the end of the slide bar 903 away from the sleeve 901. A limiting strip 17 is connected to the outer wall of the rotating shaft 8, and a limiting groove 18 cooperating with the limiting strip 17 is opened on the sleeve 901. A spring 19 sleeved on the outside of the rotating shaft 8 is provided between the top of the impeller 9 and the connecting frame 14. By setting the limit strip 17 and the limit groove 18, the impeller 9 can rotate synchronously with the rotating shaft 8 without affecting its up and down sliding; by setting the ramp 16, the slide bar 903 and the spring 19, when the impeller 9 rotates, the slide bar 903 will slide on the ramp 16, and will compress the spring 19 during the rising process, consuming the kinetic energy of the exhaust gas, thereby reducing its speed, so that it can be fully mixed and absorbed with the solvent sprayed by the sprayer 12, and after sliding over the ramp 16, the impeller 9 will fall on the auxiliary frame 15 to generate vibration, shake off the attached droplets, and prevent accumulation and adhesion.

[0032] In this embodiment, if Figure 5 As shown, two scrapers 10 are provided, a threaded sleeve 20 threadedly connected to the bottom of the rotating shaft 8 is fixedly connected between the two scrapers 10, a nut 21 is threadedly connected to the bottom of the rotating shaft 8, and a maintenance hole is provided on the processing tank 4. The threaded sleeve 20, the nut 21 and the maintenance hole are provided to facilitate disassembly and maintenance.

[0033] A control method for an exhaust gas treatment device for PVC glove production, comprising:

[0034] Step 1: The tail gas generated by the production of PVC gloves first enters the heat exchanger 1 for cooling, then enters the cyclone separator 2 to remove large particles of impurities, and finally enters the treatment tank 4 through the intake pipe 7;

[0035] Step 2: In the treatment tank 4, the exhaust gas blows onto the impeller 9 to drive the rotating shaft 8 to rotate, thereby driving the scraper 10 to clean the inner wall of the treatment tank 4 and remove the oil stains attached thereon. At the same time, it drives the slide bar 903 to slide on the slope 16 to decelerate the exhaust gas speed. The slide bar 903 periodically passes through the slope 16, and the impeller 9 will periodically rise and fall to generate vibration, so as to shake off the droplets attached to the impeller 9, the connecting frame 14 and the auxiliary frame 15;

[0036] Step 3: When the tail gas rises and passes through the filler 11, the sprayer 12 is connected to the solvent for spraying. The solvent absorbs the viscosity reducer in the tail gas and recovers it through the recovery pipe 6. The absorbed tail gas passes through the wire mesh demister 13 to remove the mist therein and is discharged from the outlet pipe 5.

[0037] In this embodiment, if Figure 1-Figure 6 As shown, the working process of the tail gas treatment device for PVC glove production provided in this embodiment is as follows:

[0038] Step 1: The tail gas generated by the production of PVC gloves first enters the heat exchanger 1 for cooling, then enters the cyclone separator 2 to remove large particles of impurities, and finally enters the treatment tank 4 through the intake pipe 7;

[0039] Step 2: In the treatment tank 4, the exhaust gas blows onto the impeller 9 to drive the rotating shaft 8 to rotate, thereby driving the scraper 10 to clean the inner wall of the treatment tank 4 and remove the oil stains attached thereon. At the same time, it drives the slide bar 903 to slide on the slope 16 to decelerate the exhaust gas speed. The slide bar 903 periodically passes through the slope 16, and the impeller 9 will periodically rise and fall to generate vibration, so as to shake off the droplets attached to the impeller 9, the connecting frame 14 and the auxiliary frame 15;

[0040] Step 3: When the tail gas rises and passes through the filler 11, the sprayer 12 is connected to the solvent for spraying. The solvent absorbs the organic matter such as the viscosity reducer in the tail gas and recovers it through the recovery pipe 6. The absorbed tail gas passes through the wire mesh demister 13 to remove the mist therein and is discharged from the outlet pipe 5.

[0041] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for PVC glove production, comprising a heat exchanger (1), a cyclone separator (2) and an exhaust gas treatment mechanism (3) connected in sequence, characterized in that: The tail gas treatment mechanism (3) comprises a treatment tank (4), the top of the treatment tank (4) is connected to an outlet pipe (5), the bottom of the treatment tank (4) is connected to a recovery pipe (6), one side of the treatment tank (4) is connected to an intake pipe (7) which is interconnected with the cyclone separator (2), a scraper mechanism is provided in the middle of the treatment tank (4), the scraper mechanism comprises a rotating shaft (8) rotatably mounted in the middle of the treatment tank (4), an impeller (9) is movably mounted on the outer wall of the rotating shaft (8), the intake pipe (7) faces the impeller (9), a scraper (10) is fixedly connected to the outer wall of the rotating shaft (8), a filler (11) located above the scraper mechanism is installed on the inner side of the treatment tank (4), and a sprayer (12) is provided above the filler (11).

2. The exhaust gas treatment device for PVC glove production according to claim 1, characterized in that: A wire mesh demister (13) located above the sprayer (12) is installed on the inner side of the treatment tank (4).

3. The exhaust gas treatment device for PVC gloves production according to claim 1, characterized in that: A connecting frame (14) rotatably connected to the rotating shaft (8) is fixedly connected to the inner wall of the processing tank (4), an auxiliary frame (15) is connected to the bottom of the connecting frame (14), and the impeller (9) is installed between the connecting frame (14) and the auxiliary frame (15).

4. The exhaust gas treatment device for PVC glove production according to claim 3, characterized in that: The top of the auxiliary frame (15) is fixedly connected with a slope (16).

5. The exhaust gas treatment device for PVC gloves production according to claim 4, characterized in that: The impeller (9) comprises a sleeve (901) sleeved on the outer wall of the rotating shaft (8), a plurality of blades (902) are connected to the outer wall of the sleeve (901), and a sliding rod (903) cooperating with the slope (16) is fixedly connected to the outer wall of the sleeve (901).

6. The exhaust gas treatment device for PVC gloves production according to claim 5, characterized in that: A rotating wheel (904) is rotatably mounted on one end of the sliding rod (903) away from the sleeve (901).

7. The exhaust gas treatment device for PVC glove production according to claim 5, characterized in that: A limit strip (17) is connected to the outer wall of the rotating shaft (8), and a limit groove (18) cooperating with the limit strip (17) is provided on the sleeve (901).

8. The exhaust gas treatment device for PVC glove production according to claim 4, characterized in that: A spring (19) sleeved on the outside of the rotating shaft (8) is provided between the top of the impeller (9) and the connecting frame (14).

9. The exhaust gas treatment device for PVC glove production according to claim 1, characterized in that: Two scrapers (10) are provided, and a threaded sleeve (20) threadedly connected to the bottom of the rotating shaft (8) is fixedly connected between the two scrapers (10). A nut (21) is threadedly connected to the bottom end of the rotating shaft (8), and a maintenance hole is provided on the processing tank (4).

10. A control method for an exhaust gas treatment device for PVC glove production, characterized in that: include: Step 1: The tail gas generated by the production of PVC gloves first enters the heat exchanger (1) for cooling, then enters the cyclone separator (2) to remove large particles of impurities, and finally enters the treatment tank (4) through the air inlet pipe (7); Step 2: In the treatment tank (4), the exhaust gas blows onto the impeller (9) to drive the rotating shaft (8) to rotate, thereby driving the scraper (10) to clean the inner wall of the treatment tank (4) and remove the oil stains attached thereto. At the same time, it drives the slide bar (903) to slide on the slope (16) to decelerate the exhaust gas speed. The slide bar (903) periodically passes through the slope (16), and the impeller (9) periodically rises and falls to generate vibration, thereby shaking off the droplets attached to the impeller (9), the connecting frame (14) and the auxiliary frame (15); Step 3: When the tail gas rises and passes through the filler (11), the sprayer (12) is connected to a solvent for spraying, and the solvent absorbs the viscosity reducer in the tail gas and recovers it through the recovery pipe (6). The tail gas after absorption passes through the wire mesh demister (13), and after the mist therein is removed, it is discharged from the outlet pipe (5).

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