Low-concentration low-boiling-point chemical waste gas filtering device

Abstract

The invention relates to the field of chemical waste gas treatment, in particular to a low-concentration low-boiling-point chemical waste gas filtering device which comprises a shell, a gas inlet pipe, a gas outlet pipe, rotating frames, a fixing column and the like, the gas inlet pipe is connected to the left side of the shell, the gas outlet pipe is connected to the right side of the shell, and the multiple rotating frames are rotationally connected to the front portion and the rear portion of the shell; the rotating frames are connected with fixing columns through threads. Gas flows into the gas inlet pipe, so that the movable column moves to extrude the connection sealing frame to move to block the shell, then the gas flows through the filter screen and the low-boiling-point adsorption material to be treated or discharged, when gas does not flow into the gas inlet pipe, the connection sealing frame is reset to open the discharge port, and meanwhile, the filter screen is cleaned through movement of the scraper; therefore, the shell can be automatically blocked during gas inlet to perform multiple treatment on chemical waste gas, and meanwhile, the filter screen is automatically cleaned and impurities are conveniently discharged when gas does not enter, so that blockage is prevented, the manual intervention and maintenance cost is reduced, and the treatment and cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chemical waste gas treatment, and particularly relates to a low-concentration and low-boiling-point chemical waste gas filtering device. BACKGROUND

[0002] In many industrial production fields such as chemical industry, electronics, and pharmaceutical industry, the emission of low-concentration and low-boiling-point chemical waste gas is increasingly prominent. Such waste gas has the characteristics of complex composition, low concentration, and weak diffusion. If it is directly discharged without effective treatment, it will not only cause serious pollution to the atmospheric environment and destroy the ecological balance, but also potentially harm human health and cause respiratory diseases and nervous system damage.

[0003] The existing low-concentration and low-boiling-point chemical waste gas filtering is usually through the waste gas flowing into the treatment equipment, and the filtering components and adsorption components in the treatment equipment filter or adsorb the particulate matters or pollutants in the waste gas. However, during long-term use, the filter screen will be gradually blocked by impurities, particulate matters, and the like in the waste gas. If it is not cleaned in time, it will not only easily cause poor air intake and affect the treatment efficiency, but also accelerate the aging and damage of the filter screen, shorten the service life, and increase the maintenance cost.

[0004] Therefore, it is necessary to design a low-concentration and low-boiling-point chemical waste gas filtering device that can automatically block the shell when air intake to extend the residence time of the waste gas in the filtering component, and automatically clean the filter screen and facilitate the discharge of impurities when no air intake to prevent blockage, reduce manual intervention and maintenance cost, and improve the treatment and cleaning efficiency. SUMMARY

[0005] In order to overcome the shortcomings that the filter screen will be gradually blocked by impurities, particulate matters, and the like in the waste gas during long-term use, if it is not cleaned in time, it will not only easily cause poor air intake and affect the treatment efficiency, but also accelerate the aging and damage of the filter screen, shorten the service life, and increase the maintenance cost, the present application provides a low-concentration and low-boiling-point chemical waste gas filtering device that can automatically block the shell when air intake to extend the residence time of the waste gas in the filtering component, and automatically clean the filter screen and facilitate the discharge of impurities when no air intake to prevent blockage, reduce manual intervention and maintenance cost, and improve the treatment and cleaning efficiency.

[0006] The technical scheme is: a low-concentration low-boiling-point chemical waste gas filtering device, comprising a shell, an air inlet pipe, an air outlet pipe, rotating frames, fixed columns, filter screens, low-boiling-point adsorption materials, a sealing assembly and a cleaning assembly, the left side of the shell is connected with the air inlet pipe, the right side of the shell is connected with the air outlet pipe, the front and back parts of the shell are rotationally connected with a plurality of rotating frames, the rotating frames are all connected with the fixed columns through threads, the left and right parts of the shell are slidingly connected with the filter screens, the fixed columns at the leftmost part and the rightmost part are connected with the adjacent filter screens, the middle part of the shell is slidingly connected with the left and right low-boiling-point adsorption materials, the second and third fixed columns from left to right are connected with the adjacent low-boiling-point adsorption materials, the sealing assembly for plugging the shell is arranged between the shell and the air inlet pipe, and the cleaning assembly for cleaning the filter screens is arranged on the shell.

[0007] Optionally, discharge ports are formed in the lower sides of the left and right parts of the shell.

[0008] Optionally, a plurality of mounting holes are formed in the left part of the air inlet pipe.

[0009] Optionally, dampers are arranged between the rotating frames and the shell.

[0010] Optionally, handles are arranged on the upper parts of the fixed columns.

[0011] Optionally, the sealing assembly comprises a moving column, a tension spring, a connecting closed frame and a compression spring, the lower part of the air inlet pipe is slidingly connected with the moving column, the tension spring is connected between the moving column and the air inlet pipe, the lower part of the shell is slidingly connected with the connecting closed frame, and the compression spring is connected between the connecting closed frame and the shell.

[0012] Optionally, the lower side of the moving column and the left side of the connecting closed frame are inclined surfaces.

[0013] Optionally, the cleaning assembly comprises a motor, a lead screw and a scraper, the upper sides of the left and right parts of the shell are connected with the motor, the output shafts of the motors are connected with the lead screws, the lead screws are rotationally connected with the shell, the lead screws are connected with the scrapers through threads, the scrapers are slidingly connected with the shell, and the scrapers are in contact with the adjacent filter screens.

[0014] Optionally, the motor and the processor are electrically connected through a control module.

[0015] Optionally, the scrapers are K-shaped.

[0016] Beneficial effects: 1. The application can make the moving column move to extrude the connecting closed frame to block the shell, and then the gas flows through the filter screen and the low-boiling point adsorption material for treatment or discharge, when no gas is input, the connecting closed frame resets to open the discharge port, and the filter screen is cleaned by the scraper, so that the shell can be automatically blocked for multiple chemical waste gas treatment when the gas is input, the filter screen can be automatically cleaned and impurities can be easily discharged when no gas is input, the blockage is prevented, the manual intervention and maintenance cost are reduced, and the treatment and cleaning efficiency is improved.

[0017] 2. The application can quickly install the filter screen or the low-boiling point adsorption material for gas treatment, and the filter screen or the low-boiling point adsorption material can be quickly installed and replaced, the maintenance cost is reduced, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the application.

[0019] Figure 2 It is a schematic diagram of the first structure of the application.

[0020] Figure 3 It is a schematic diagram of the second structure of the application.

[0021] Figure 4 It is a schematic diagram of the third structure of the application.

[0022] Figure 5 It is a schematic diagram of the fourth structure of the application.

[0023] Figure 6 It is a schematic diagram of the first part of the three-dimensional structure of the application.

[0024] Figure 7 It is a schematic diagram of the second part of the three-dimensional structure of the application.

[0025] Figure 8 It is a schematic diagram of the third part of the three-dimensional structure of the application.

[0026] Figure 9 It is a schematic diagram of the fourth part of the three-dimensional structure of the application.

[0027] Figure 10 It is a schematic diagram of the fifth part of the three-dimensional structure of the application.

[0028] The markings in the attached diagram are as follows: 1: outer casing, 2: air inlet pipe, 3: air outlet pipe, 4: rotating frame, 5: fixed column, 6: filter screen, 7: low boiling point adsorbent material, 8: moving column, 9: tension spring, 10: connecting and sealing frame, 11: compression spring, 12: motor, 13: lead screw, 14: scraper. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] A low-concentration, low-boiling-point chemical waste gas filtration device, such as Figures 1-10 As shown, the device includes a housing 1, an inlet pipe 2, an outlet pipe 3, a rotating frame 4, a fixed column 5, a filter screen 6, a low-boiling-point adsorbent material 7, a sealing assembly, and a cleaning assembly. The housing 1 has outlet ports on both the left and right sides at its lower edge for easy discharge of impurities. The inlet pipe 2 is connected to the left side of the housing 1, and the left side of the inlet pipe 2 has six mounting holes for easy connection to the equipment's outlet. The outlet pipe 3 is connected to the right side of the housing 1. Four rotating frames 4 are rotatably connected to both the front and rear of the housing 1. Each rotating frame 4 has damping between it and the housing 1 for easy fixing. Each rotating frame 4 is threaded. The housing 1 is connected to a fixed post 5, and each fixed post 5 has a handle on its upper part for easy gripping and rotation. Filter screens 6 are slidably engaged on both the left and right sides of the housing 1. The leftmost and rightmost fixed posts 5 are engaged with the adjacent filter screens 6. Two low-boiling-point adsorbent materials 7 are slidably engaged in the middle of the housing 1. The second and third fixed posts 5 from left to right are engaged with the adjacent low-boiling-point adsorbent materials 7. A sealing component for sealing the housing 1 is provided between the housing 1 and the air inlet pipe 2. A cleaning component for cleaning the filter screens 6 is provided on the housing 1.

[0031] like Figure 7 , Figure 8 and Figure 9 As shown, the sealing assembly includes a movable column 8, a tension spring 9, a connecting sealing frame 10, and a compression spring 11. The movable column 8 is slidably connected to the lower part of the air intake pipe 2, and the tension spring 9 is connected between the movable column 8 and the air intake pipe 2. The connecting sealing frame 10 is slidably connected to the lower part of the outer shell 1. The lower side of the movable column 8 and the left side of the connecting sealing frame 10 are both inclined surfaces to facilitate compression fitting. The compression spring 11 is connected between the connecting sealing frame 10 and the outer shell 1.

[0032] like Figure 8 and Figure 9As shown, the cleaning assembly includes a motor 12, a lead screw 13 and a scraper 14, the left and right two parts of the shell 1 are connected with the motor 12, the motor 12 and the processor are electrically connected through the control module, the output shaft of the motor 12 is connected with the lead screw 13, the lead screw 13 is rotatably connected with the shell 1, the lead screw 13 is threadedly connected with the scraper 14, the scraper 14 is slidably connected with the shell 1, the scraper 14 is in contact with the adjacent filter screen 6, and the scraper 14 is K-shaped, facilitating the removal of impurities.

[0033] When it is necessary to filter low-concentration low-boiling-point chemical waste gas, the device can be used, so that the gas inlet pipe 2 is in contact with the gas outlet pipe 3 of the equipment, and then the gas inlet pipe 2 is fixed by screwing through the mounting hole, then the gas flows into the gas inlet pipe 2, and under the action of gas pressure, the moving column 8 moves to contact the connecting closure frame 10, the tension spring 9 is stretched, thereby extruding the connecting closure frame 10 to move to block the discharge port on the shell 1, the compression spring 11 is extruded, then the gas continues to flow into the shell 1, flows through the filter screen 6 to filter the particulate matter in the gas, and then flows through the two low-boiling-point adsorption materials 7 to realize treatment, the gaseous organic pollutants and part of the inorganic gas in the gas are adsorbed by the low-boiling-point adsorption material 7, then the gas flows through the filter screen 6 for secondary filtration, and then the treated gas is discharged from the gas outlet pipe 3 into the next treatment equipment for further treatment, when no gas enters the gas inlet pipe 2, the tension spring 9 rebounds, the moving column 8 moves to reset and disengage from the connecting closure frame 10, the compression spring 11 rebounds, the connecting closure frame 10 moves to reset, thereby opening the discharge port on the shell 1, and at the same time the processor starts the motor 12 through the control module, the lead screw 13 is driven to rotate by the motor 12, under the action of the thread, the scraper 14 moves to clean the particulate matter or other impurities on the filter screen 6, and then the motor 12 is reversely operated, so that the lead screw 13 reversely rotates, under the action of the thread, the scraper 14 moves to reset to continue cleaning the particulate matter or other impurities, and the scraper 14 is K-shaped, so that the shell 1 can be automatically blocked during gas intake to realize multiple treatment of chemical waste gas, and the filter screen 6 can be automatically cleaned and the impurities can be easily discharged when no gas is intaken, preventing clogging, reducing manual intervention and maintenance cost, improving treatment and cleaning efficiency, and after cleaning, the motor 12 is turned off. When the filter screen 6 is damaged or the low-boiling-point adsorption material 7 needs to be replaced, the fixed column 5 is moved away from the filter screen 6 or the low-boiling-point adsorption material 7 by rotating the handle, the rotating frame 4 is rotated outward, the rotating frame 4 is fixed under the action of damping, the fixed column 5 is rotated, then the filter screen 6 or the low-boiling-point adsorption material 7 is removed for replacement, the new filter screen 6 or the low-boiling-point adsorption material 7 is contacted with the shell 1, and the filter screen 6 or the low-boiling-point adsorption material 7 is moved to be clamped with the shell 1 for installation, then the rotating frame 4 is reversely rotated to reset, the fixed column 5 is rotated to reset, the fixed column 5 is reversely rotated to move and be clamped with the filter screen 6 or the low-boiling-point adsorption material 7 for fixation, so that the filter screen 6 or the low-boiling-point adsorption material 7 can be quickly installed for gas treatment, the filter screen 6 or the low-boiling-point adsorption material 7 can be quickly mounted and dismounted and replaced, the maintenance cost is reduced, use is convenient, and then the device can be continuously used.

[0034] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present application. Those skilled in the art will understand that the variations of the present application will be included in the scope of the claims herein.

Claims

1. A low concentration low boiling point chemical exhaust gas filtering device, characterized by: The utility model relates to a kind of low boiling point adsorption material filter, including shell (1), air inlet pipe (2), air outlet pipe (3), rotating frame (4), fixed column (5), filter screen (6), low boiling point adsorption material (7), sealing assembly and cleaning assembly, shell (1) left side is connected with air inlet pipe (2), shell (1) right side is connected with air outlet pipe (3), shell (1) front and rear two parts are rotatably connected with multiple rotating frame (4), rotating frame (4) are all connected with fixed column (5) by screw thread, shell (1) left and right two parts are slidably connected with filter screen (6), the leftmost and the rightmost fixed column (5) are connected with adjacent filter screen (6), shell (1) middle part is slidably connected with left and right two low boiling point adsorption material (7), the second and the third fixed column (5) from left to right are connected with adjacent low boiling point adsorption material (7), sealing assembly for plugging shell (1) is equipped between shell (1) and air inlet pipe (2), cleaning assembly for cleaning filter screen (6) is equipped on shell (1).

2. The low concentration low boiling point chemical exhaust gas filtering device according to claim 1, characterized in that: Shell (1) left and right two parts lower side are all opened with discharge port.

3. The low concentration low boiling point chemical exhaust gas filtering device according to claim 1, characterized in that: Air inlet pipe (2) left part is opened with multiple mounting holes.

4. The low concentration low boiling point chemical exhaust gas filtering apparatus as claimed in claim 1, wherein: Rotating frame (4) is equipped with damping between shell (1).

5. The low concentration low boiling point chemical exhaust gas filtering apparatus as claimed in claim 1, wherein: Fixed column (5) upper part is all equipped with handle.

6. The low concentration low boiling point chemical exhaust gas filtering apparatus as claimed in claim 1, wherein: Sealing assembly includes moving column (8), tension spring (9), connecting closed frame (10) and compression spring (11), air inlet pipe (2) lower part is slidably connected with moving column (8), tension spring (9) is connected between moving column (8) and air inlet pipe (2), shell (1) lower part is slidably connected with connecting closed frame (10), connecting closed frame (10) and shell (1) are connected with compression spring (11).

7. A low concentration, low boiling point chemical exhaust filter apparatus as claimed in claim 6, wherein: Moving column (8) lower side and connecting closed frame (10) left side are all inclined surface.

8. The low concentration low boiling point chemical exhaust gas filtering apparatus as claimed in claim 1, wherein: Cleaning assembly includes motor (12), lead screw (13) and scraper (14), shell (1) left and right two parts upper side are all connected with motor (12), the output shaft of motor (12) is all connected with lead screw (13), lead screw (13) are rotatably connected with shell (1), lead screw (13) are all connected with scraper (14) by screw thread, scraper (14) are slidably connected with shell (1), scraper (14) are all in contact with adjacent filter screen (6).

9. A low concentration, low boiling point chemical exhaust filter apparatus as claimed in claim 8, wherein: Motor (12) and processor are electrically connected by control module.

10. The low concentration, low boiling point chemical exhaust filtration device of claim 8, wherein: Scraper (14) is K-shaped.

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