Organic solvent adsorption and recovery device

Abstract

The utility model discloses an organic solvent adsorption recovery device, which relates to the technical field of organic solvent recovery and comprises a first filter screen arranged in a device main body and a second filter screen positioned above the first filter screen, and a rotating shaft is arranged in the middle of the lower surface of the first filter screen in a penetrating manner. Four groups of first scraping plates are fixedly connected to the outer side, close to the bottom end, of the rotating shaft, a second scraping plate is fixedly connected to the upper end of the rotating shaft, a collecting tank shell is fixedly connected to the edge of the upper surface of the first filter screen, and the section of the second filter screen is arc-shaped; the device has the advantages that the device can be prevented from being blocked due to the fact that impurities in waste gas are accumulated in the device, a good anti-blocking effect is achieved, the circulation rate of the waste gas is increased, the recovery efficiency of organic solvents in the waste gas is remarkably improved, the function of rapidly taking and placing the activated carbon adsorption plate is achieved, replacement is convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of organic solvent recovery, in particular to an organic solvent adsorption recovery device. Background Art

[0002] As the country attaches more importance to environmental protection, the emission standards of volatile organic gases in industrial waste gas in various regions are becoming increasingly strict. There are currently many methods for treating volatile organic gases in industrial waste gas: such as adsorption, absorption, condensation, combustion and low-temperature plasma. For the adsorption method, activated carbon fiber or granular activated carbon is generally used to adsorb the tail gas. After saturation, the adsorbed organic solvent is blown off with steam or heated inert gas.

[0003] After searching, the patent number is CN2506340Y, which discloses an activated carbon fiber organic solvent adsorption and recovery device, which has a novel and simple structure, low equipment investment, energy saving, low operating cost, easy operation, and convenient maintenance. It has a high efficiency in recovering organic solvents in the air and can completely recover organic solvents of various concentrations. It is efficient and inexpensive. However, when the existing organic solvent adsorption and recovery device is in use, a large amount of impurities in the exhaust gas are easily directly attached to the activated carbon adsorption plate, causing the circulation of the exhaust gas to be blocked, making it difficult to adsorb and recover the organic solvents in the exhaust gas, thereby reducing the recovery efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an organic solvent adsorption recovery device. When the existing organic solvent adsorption recovery device is in use, a large amount of impurities in the exhaust gas are easily directly attached to the activated carbon adsorption plate, causing the circulation of the exhaust gas to be blocked, making it difficult to adsorb and recover the organic solvent in the exhaust gas, thereby reducing the recovery efficiency.

[0005] In order to solve the above technical problems, the technical solution of the utility model is an organic solvent adsorption recovery device, comprising a first filter screen arranged inside the device body, and a second filter screen, the second filter screen is located above the first filter screen, a rotating shaft is penetrated through the middle position of the lower surface of the first filter screen, four groups of first scrapers are fixedly connected to the outer side of the rotating shaft near the bottom end, the upper end of the rotating shaft is fixedly connected to the second scraper, and the edge position of the upper surface of the first filter screen is fixedly connected to a collection tank shell.

[0006] As a further solution of the utility model: the cross-sectional shape of the second filter screen is arranged in an arc shape, and the second filter screen is fixedly connected to the collecting tank shell, and the cross-sectional shape of the collecting tank shell is arranged in a U shape.

[0007] As a further solution of the utility model: a driving motor is fixedly installed in the middle position of the lower surface of the first filter screen, and the rotating shaft is fixedly connected to the output end of the driving motor, and three groups of internal threaded columns are fixedly connected to the outer side of the driving motor at equal intervals.

[0008] As a further solution of the utility model: three groups of mounting screws are evenly spaced through the outer side surface of the device body, and the three groups of mounting screws are respectively threadedly connected with the three groups of internal threaded columns.

[0009] As a further solution of the utility model: four groups of the first scrapers are evenly spaced and distributed on the upper surface of the first filter screen, the cross-sectional shape of the second scraper is arc-shaped, and the second scraper is located on the upper surface of the second filter screen.

[0010] As a further solution of the utility model: a bearing mesh shell is arranged at the inner bottom of the device body, an activated carbon adsorption plate is arranged inside the bearing mesh shell, four groups of slide plates are fixedly connected to the outer side surface of the bearing mesh shell at equal intervals, four groups of fixed groove shells are fixedly connected to the outer bottom of the device body at equal intervals, limiting rods are clamped inside the four groups of fixed groove shells, and a lifting rod is fixedly connected to the middle position of the lower surface of the bearing mesh shell.

[0011] As a further solution of the utility model: the four groups of slide plates are respectively located on the inner sides of the four groups of fixed slot shells, the four groups of slide plates are penetrated with slide holes, and the four groups of slide plates are slidably connected with the four groups of limit rods through the slide holes.

[0012] As a further solution of the utility model: compression springs are arranged inside the four groups of fixed slot shells, and the four groups of compression springs are respectively sleeved on the outside of the four groups of limit rods, and the four groups of compression springs are respectively located at the lower sides of the four groups of slide plates.

[0013] The utility model adopts the above technical scheme, and has the following advantages compared with the prior art: most of the impurities in the exhaust gas are blocked by the second filter, and then the impurities in the exhaust gas are further blocked by the first filter, and then the driving motor on the lower surface of the first filter is started to drive the rotating shaft to rotate, thereby driving the four groups of first scrapers and the second scrapers to rotate together, at this time, the impurities on the upper surface of the second filter are cleaned to the inside of the collecting tank shell by the second scraper, and a small part of the impurities on the upper surface of the first filter are pushed to the edge position by the four groups of first scrapers, which can prevent the impurities in the exhaust gas from accumulating in the device and causing the device to be blocked, play a good anti-blocking role, accelerate the circulation rate of the exhaust gas, and significantly improve the recovery efficiency of the organic solvent in the exhaust gas.

[0014] The bearing mesh shell is pulled out from the interior of the device body by the lifting rod until the bearing mesh shell is located below the device body. At this time, the four groups of slides move downward along the four groups of limit rods through the sliding holes respectively, and then the activated carbon adsorption plate is taken out from the interior of the bearing mesh shell and replaced. Then, the bearing mesh shell is returned to the interior of the device body through the compression springs in the four groups of fixed groove shells, thereby realizing the quick removal and placement function of the activated carbon adsorption plate, which is convenient for replacement and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an organic solvent adsorption recovery device in an embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional view of an organic solvent adsorption recovery device in an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the first filter screen and the second filter screen in the embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the connection structure of the load-bearing lattice shell in the embodiment of the utility model.

[0019] In the figure: 1. Device body; 2. First filter screen; 3. Collection tank shell; 4. Second filter screen; 5. Driving motor; 6. Rotating shaft; 7. First scraper; 8. Second scraper; 9. Internal threaded column; 10. Mounting screw; 11. Load-bearing mesh shell; 12. Activated carbon adsorption plate; 13. Lifting rod; 14. Fixed tank shell; 15. Limiting rod; 16. Compression spring; 17. Slide plate. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1, please refer to Figure 1-Figure 4 An organic solvent adsorption recovery device includes a first filter screen 2 arranged inside a device body 1, and also includes a second filter screen 4, the second filter screen 4 is located above the first filter screen 2, a rotating shaft 6 is penetrated through the middle position of the lower surface of the first filter screen 2, four groups of first scrapers 7 are fixedly connected to the outer side of the rotating shaft 6 near the bottom end, a second scraper 8 is fixedly connected to the upper end of the rotating shaft 6, and a collecting tank shell 3 is fixedly connected to the edge position of the upper surface of the first filter screen 2.

[0022] The cross-sectional shape of the second filter screen 4 is arranged in an arc shape, and the second filter screen 4 is fixedly connected to the collecting tank shell 3, and the cross-sectional shape of the collecting tank shell 3 is arranged in a U shape.

[0023] In this embodiment, the first filter screen 2 and the second filter screen 4 cooperate to block impurities in the exhaust gas.

[0024] A driving motor 5 is fixedly installed in the middle position of the lower surface of the first filter screen 2, and the rotating shaft 6 is fixedly connected to the output end of the driving motor 5. Three groups of internal threaded columns 9 are fixedly connected to the outside of the driving motor 5 at equal intervals. Three groups of mounting screws 10 are evenly spaced through the outer side of the device body 1, and the three groups of mounting screws 10 are threadedly connected to the three groups of internal threaded columns 9 respectively.

[0025] In this embodiment, the first filter screen 2 is installed by threading the installation screw 10 with the internal thread column 9 .

[0026] Four groups of first scrapers 7 are evenly spaced and distributed on the upper surface of the first filter screen 2 . The cross-sectional shape of the second scraper 8 is arc-shaped, and the second scraper 8 is located on the upper surface of the second filter screen 4 .

[0027] In this embodiment, the second scraper 8 is used to clean the surface of the second filter screen 4 .

[0028] Specifically, most of the impurities in the exhaust gas are blocked by the second filter 4, and then the impurities in the exhaust gas are further blocked by the first filter 2, and then the driving motor 5 on the lower surface of the first filter 2 is started to drive the rotating shaft 6 to rotate, thereby driving the four groups of first scrapers 7 and second scrapers 8 to rotate together. At this time, the impurities on the upper surface of the second filter 4 are cleaned to the inside of the collecting tank shell 3 by the second scraper 8, and a small amount of impurities on the upper surface of the first filter 2 are pushed to the edge position by the four groups of first scrapers 7, which can prevent the impurities in the exhaust gas from accumulating in the device and causing the device to be blocked, play a good anti-blocking role, accelerate the circulation rate of the exhaust gas, and significantly improve the recovery efficiency of the organic solvent in the exhaust gas.

[0029] Example 2, please refer to Figure 1-Figure 4 An organic solvent adsorption recovery device, a bearing net shell 11 is arranged at the inner bottom of the device body 1, an activated carbon adsorption plate 12 is arranged inside the bearing net shell 11, four groups of slide plates 17 are fixedly connected to the outer side surface of the bearing net shell 11 at equal intervals, four groups of fixed slot shells 14 are fixedly connected to the outer bottom of the device body 1 at equal intervals, and the insides of the four groups of fixed slot shells 14 are all clamped with limiting rods 15, and a lifting rod 13 is fixedly connected to the middle position of the lower surface of the bearing net shell 11.

[0030] The four sets of slide plates 17 are respectively located at the inner sides of the four sets of fixed slot shells 14 . Sliding holes are formed through the four sets of slide plates 17 . The four sets of slide plates 17 are slidably connected with the four sets of limit rods 15 through the sliding holes.

[0031] In this embodiment, the sliding plate 17 and the limiting rod 15 are slidably matched to support the lifting of the lattice shell 11 .

[0032] Compression springs 16 are disposed inside the four groups of fixed slot shells 14 , and the four groups of compression springs 16 are respectively sleeved on the outsides of the four groups of limit rods 15 , and the four groups of compression springs 16 are respectively located at the lower sides of the four groups of slide plates 17 .

[0033] In this embodiment, four groups of compression springs 16 are used to hinder the descent of the four groups of slide plates 17 .

[0034] Specifically, the supporting mesh shell 11 is pulled out from the interior of the device body 1 by the lifting rod 13 until the supporting mesh shell 11 is located below the device body 1. At this time, the four groups of slides 17 move downward along the four groups of limit rods 15 through the sliding holes respectively, and then the activated carbon adsorption plate 12 is taken out from the interior of the supporting mesh shell 11 and replaced, and then the compression springs 16 in the four groups of fixed groove shells 14 are used to make the supporting mesh shell 11 return to the interior of the device body 1, thereby realizing the quick removal and placement function of the activated carbon adsorption plate 12, which is convenient for replacement and simple to operate.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An organic solvent adsorption recovery device, comprising a first filter screen (2) arranged inside a device body (1), Features: It also comprises a second filter screen (4), the second filter screen (4) being located above the first filter screen (2), a rotating shaft (6) being provided through the middle of the lower surface of the first filter screen (2), four groups of first scrapers (7) being fixedly connected to the outer side of the rotating shaft (6) near the bottom end, a second scraper (8) being fixedly connected to the upper end of the rotating shaft (6), and a collecting tank shell (3) being fixedly connected to the edge of the upper surface of the first filter screen (2).

2. An organic solvent adsorption recovery device according to claim 1, Features: The cross-sectional shape of the second filter screen (4) is arranged in an arc shape, and the second filter screen (4) is fixedly connected to the collecting tank shell (3), and the cross-sectional shape of the collecting tank shell (3) is arranged in a U shape.

3. An organic solvent adsorption recovery device according to claim 1, Features: A drive motor (5) is fixedly mounted in the middle of the lower surface of the first filter screen (2), and a rotating shaft (6) is fixedly connected to the output end of the drive motor (5). Three groups of internal threaded columns (9) are fixedly connected at equal intervals to the outside of the drive motor (5).

4. An organic solvent adsorption recovery device according to claim 3, Features: Three groups of mounting screws (10) are arranged at equal intervals through the outer side surface of the device body (1), and the three groups of mounting screws (10) are respectively threadedly connected to the three groups of internal threaded columns (9).

5. An organic solvent adsorption recovery device according to claim 3, Features: The four groups of the first scrapers (7) are evenly spaced and distributed on the upper surface of the first filter screen (2); the cross-sectional shape of the second scraper (8) is arc-shaped, and the second scraper (8) is located on the upper surface of the second filter screen (4).

6. The organic solvent adsorption recovery device according to claim 1, Features: A bearing net shell (11) is arranged at the inner bottom of the device body (1), an activated carbon adsorption plate (12) is arranged inside the bearing net shell (11), four groups of slide plates (17) are fixedly connected at equal intervals to the outer side surface of the bearing net shell (11), four groups of fixed slot shells (14) are fixedly connected at equal intervals to the outer bottom of the device body (1), the inside of the four groups of fixed slot shells (14) are all clamped with limiting rods (15), and a lifting rod (13) is fixedly connected to the middle position of the lower surface of the bearing net shell (11).

7. An organic solvent adsorption recovery device according to claim 6, Features: The four groups of slide plates (17) are respectively located on the inner sides of the four groups of fixed slot shells (14); slide holes are provided through the four groups of slide plates (17); and the four groups of slide plates (17) are respectively slidably connected to the four groups of limit rods (15) through the slide holes.

8. An organic solvent adsorption recovery device according to claim 7, Features: Compression springs (16) are arranged inside the four groups of fixed slot shells (14), and the four groups of compression springs (16) are respectively sleeved on the outsides of the four groups of limit rods (15), and the four groups of compression springs (16) are respectively located on the lower sides of the four groups of slide plates (17).

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