DMF (Dimethyl Formamide) tail gas recovery treatment device

Abstract

The utility model provides a DMF (Dimethyl Formamide) tail gas recovery treatment device and belongs to the technical field of DMF tail gas treatment. Comprising a bottom plate, a supporting plate is installed at one end of the bottom plate and is in an L shape, a sliding groove is formed in the middle of the vertical end of the supporting plate, a lifting limiting assembly is installed in the supporting plate, a tank body is installed in the middle of the horizontal end of the supporting plate, the tank body is matched with a tank bottom plate, a vertical rod is installed in the middle of the upper portion of the tank bottom plate, and multiple sets of evenly-distributed containing frames are installed on the vertical rod. Through the arrangement of the lifting limiting assembly, the tank bottom plate, the vertical rods and the placing frames can be conveniently driven to integrally move up and down, the lifting plate is movably connected with the tank bottom plate, the tank bottom plate, the vertical rods and the placing frames can be conveniently taken out integrally, the replacement speed of activated carbon is high, the DMF tail gas absorption effect is guaranteed through the arrangement of the multiple sets of placing frames and iron gauze, and the service life of the DMF tail gas is prolonged. And the iron gauze does not hinder the movement of the DMF tail gas.

Description

Technical Field

[0001] This utility model relates to the field of DMF exhaust gas treatment technology, and in particular to a DMF exhaust gas recovery and treatment device. Background Technology

[0002] DMF, or dimethylformamide, is a common organic solvent. DMF exhaust gas is waste gas containing dimethylformamide generated in industrial production. DMF exhaust gas is harmful to the environment and human health and needs to be treated appropriately to reduce its emissions.

[0003] When treating DMF exhaust gas, activated carbon can be used to adsorb the DMF (activated carbon has a large specific surface area and abundant pore structure, which can adsorb DMF in the exhaust gas onto its surface and pores). In order to ensure the treatment effect of DMF exhaust gas, multiple layers of activated carbon need to be set up. In order to ensure the adsorption capacity of activated carbon, it is necessary to replace the activated carbon. However, under the existing technology, the activated carbon can only be replaced layer by layer, which takes a long time. Therefore, a technical measure is proposed to solve the problem that the existing technology can only replace activated carbon layer by layer, which takes a long time. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a DMF tail gas recovery and treatment device to solve the problem that in the prior art, when replacing activated carbon, it can only be replaced layer by layer, which takes a long time.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A DMF exhaust gas recovery and treatment device includes a base plate, a support plate mounted on one end of the base plate, the support plate being L-shaped, a groove being formed in the middle of the vertical end of the support plate, a lifting and limiting component being installed inside the support plate, and a tank being mounted in the middle of the horizontal end of the support plate, the tank being fitted with a tank bottom plate, a vertical rod being mounted in the middle of the upper part of the tank bottom plate, and multiple sets of evenly distributed placement frames being mounted on the vertical rod. Thanks to the lifting and limiting component, the tank bottom plate, vertical rod, and placement frames can be easily moved up and down as a whole, and the lifting plate is movably connected to the tank bottom plate, making it easy to remove the tank bottom plate, vertical rod, and placement frames as a whole, allowing for rapid replacement of activated carbon.

[0007] Optionally, multiple sets of ear plates are installed on the side of the base plate, and a locking hole is provided in the middle of the upper surface of the base plate.

[0008] Optionally, an air inlet pipe is installed through the lower side of the tank, and an air outlet pipe is provided at the upper end of the tank.

[0009] Optionally, multiple sets of evenly distributed limiting rods are installed on the lower part of the tank bottom plate. Thanks to the setting of the limiting rods, it is convenient to initially limit the tank bottom plate and prevent the tank bottom plate, vertical rods, and placement frame from tipping over.

[0010] Optionally, a wire mesh is installed inside the lower part of the placement frame. Thanks to the setting of multiple placement frames and wire mesh, the absorption effect of DMF exhaust gas is guaranteed, and the wire mesh will not obstruct the movement of DMF exhaust gas.

[0011] Optionally, the lifting limit assembly includes a motor, which is fixedly mounted on the horizontal end of the support plate.

[0012] Optionally, the motor is connected to a screw, the screw is rotatably connected to a support plate, and the screw is threadedly connected to a sliding plate.

[0013] Optionally, the slide plate is slidably adapted to the slide groove.

[0014] Optionally, a connecting plate is connected to the middle of the side of the slide plate, and a lifting plate is installed on the side of the connecting plate away from the slide plate. The connecting plate is located on the upper side of the lifting plate, and the upper end of the lifting plate is fixedly connected to the lower part of the tank bottom plate. Multiple sets of evenly distributed limiting holes are opened inside the lifting plate.

[0015] Optionally, the lifting plate is adapted to the locking hole, and the height of the locking hole and the connecting plate is half that of the lifting plate, and the limiting hole is adapted to the limiting rod.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above solution, by setting up the lifting limit component, it is convenient to move the bottom plate, vertical rod, and placement frame of the tank up and down as a whole. The lifting plate is movably connected to the bottom plate of the tank, which makes it easy to remove the bottom plate, vertical rod, and placement frame of the tank as a whole. For the fast replacement of activated carbon, the motor is started to drive the lifting plate to move downward and engage with the locking hole. The downward movement of the lifting plate drives the bottom plate, vertical rod, and placement frame of the tank to move downward, and then the bottom plate, vertical rod, and placement frame of the tank are removed as a whole.

[0018] The setting of the limiting rod facilitates the initial limiting of the tank bottom plate, preventing the tank bottom plate, vertical rod, and placement frame from tipping over. Align the limiting rod with the limiting hole and insert it to complete the limiting of the tank bottom plate.

[0019] By using multiple sets of placement frames and wire mesh, the absorption effect of DMF exhaust gas is ensured, and the wire mesh will not obstruct the movement of DMF exhaust gas. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the tank body and bottom plate in a separated state.

[0024] Figure 4 A schematic diagram of the structure for improving the separation state of the limit component.

[0025] Reference numerals: 1. Base plate; 2. Lifting and limiting assembly; 3. Support plate; 4. Tank body; 5. Ear plate; 6. Locking hole; 7. Slide groove; 8. Tank bottom plate; 9. Air outlet pipe; 10. Air inlet pipe; 11. Limiting rod; 12. Vertical rod; 13. Placement frame; 14. Wire mesh; 201. Motor; 202. Screw; 203. Slide plate; 204. Connecting plate; 205. Lifting plate; 206. Limiting hole.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The present invention provides a DMF exhaust gas recovery and treatment device in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this utility model provides a DMF exhaust gas recovery and treatment device, including a base plate 1, a support plate 3 installed at one end of the base plate 1, the support plate 3 being L-shaped, a groove 7 being provided in the middle of the vertical end of the support plate 3, a lifting limiting component 2 being installed inside the support plate 3, a tank body 4 being installed in the middle of the horizontal end of the support plate 3, the tank body 4 being fitted with a tank bottom plate 8, a vertical rod 12 being installed in the middle of the upper part of the tank bottom plate 8, multiple sets of evenly distributed placement frames 13 being installed on the vertical rod 12, multiple sets of ear plates 5 being installed on the side of the base plate 1, a locking hole 6 being provided in the middle of the upper surface of the base plate 1, an air inlet pipe 10 being installed through the lower part of the side of the tank body 4, an air outlet pipe 9 being provided at the upper end of the tank body 4, and multiple sets of evenly distributed placement frames 13 being installed at the lower part of the tank bottom plate 8. The limiting rod 11 and the wire mesh 14 are installed inside the lower part of the placement frame 13. When treating DMF exhaust gas, the DMF exhaust gas is connected to the inlet pipe 10. The DMF exhaust gas moves upward along the tank 4 (the inlet pipe 10 continuously enters the DMF exhaust gas, and the newly entered DMF exhaust gas will push the exhaust gas towards the outlet pipe 9). Under the action of activated carbon, DMF is absorbed, and the absorbed exhaust gas is discharged through the outlet pipe 9 (several tanks 4 can be set up and connected in series to ensure that the DMF exhaust gas is completely absorbed). When it is necessary to replace the activated carbon, the bottom plate 8, vertical rod 12 and placement frame 13 are removed by lifting the limiting component 2, and the bottom plate 8 containing new activated carbon is reinstalled.

[0033] like Figures 1 to 4As shown, the lifting and limiting assembly 2 includes a motor 201, which is fixedly installed on the horizontal end of the support plate 3. The motor 201 is connected to a screw 202, which is rotatably connected to the support plate 3. The screw 202 is threadedly connected to a sliding plate 203, which is slidably adapted to the slide groove 7. A connecting plate 204 is connected to the middle of the side of the sliding plate 203. A lifting plate 205 is installed on the side of the connecting plate 204 away from the sliding plate 203, and the connecting plate 204 is on the upper side of the lifting plate 205. The upper end of the lifting plate 205 is fixedly connected to the lower part of the tank bottom plate 8. Multiple sets of evenly distributed limiting holes 206 are opened inside the lifting plate 205. The lifting plate 205 is adapted to the locking hole 6, and the height of the locking hole 6 and the connecting plate 204 is half of the height of the lifting plate 205. The limiting holes 206 are adapted to the limiting rod 11. The motor 201 is started (motor 201 drives...). The machine has a brake to prevent the screw 202 from rotating. The motor 201 starts and drives the screw 202 to rotate. The rotation of the screw 202 drives the slide plate 203 to move downward along the slide groove 7. The downward movement of the slide plate 203 drives the connecting plate 204 to move downward. The downward movement of the connecting plate 204 drives the lifting plate 205 to move downward and engage with the locking hole 6. The downward movement of the lifting plate 205 drives the tank bottom plate 8, the vertical rod 12, and the placement frame 13 to move downward. Then, the tank bottom plate 8, the vertical rod 12, and the placement frame 13 are removed as a whole (the activated carbon adsorbed with DMF is uniformly processed). The limiting rod 11 at the bottom of the tank bottom plate 8 with new activated carbon is aligned with the limiting hole 206 and inserted (the limiting hole 206 and the limiting rod 11 cooperate to facilitate the limiting of the tank bottom plate 8). Then, the motor 201 is started to reverse and drive the tank bottom plate 8, the vertical rod 12, and the placement frame 13 back to the initial position.

[0034] The working principle of the technical solution provided by this utility model is as follows:

[0035] When treating DMF exhaust gas, the DMF exhaust gas is connected to the inlet pipe 10. The DMF exhaust gas moves upward along the tank 4 (the inlet pipe 10 continuously enters the DMF exhaust gas, and the newly entered DMF exhaust gas will push the exhaust gas towards the outlet pipe 9). Under the action of activated carbon, the DMF is absorbed, and the absorbed exhaust gas is discharged through the outlet pipe 9 (several tanks 4 can be set up and connected in series to ensure that the DMF exhaust gas is completely absorbed).

[0036] When the activated carbon needs to be replaced, the bottom plate 8, vertical rod 12, and placement frame 13 are removed by lifting the limiting component 2. Specifically, the motor 201 (with a brake to prevent the screw 202 from rotating) is started, driving the screw 202 to rotate. The rotation of the screw 202 causes the sliding plate 203 to move downward along the slide groove 7. The downward movement of the sliding plate 203 causes the connecting plate 204 to move downward. The downward movement of the connecting plate 204 causes the lifting plate 205 to move downward and engage with the locking hole 6. The downward movement of the lifting plate 205 causes the bottom plate 8, vertical rod 12, and placement frame 13 to move downward. Then, the bottom plate 8, vertical rod 12, and placement frame 13 are removed as a whole (the activated carbon adsorbed with DMF is processed uniformly). The limiting rod 11 at the bottom of the bottom plate 8 containing the new activated carbon is then positioned... The quasi-limiting hole 206 is inserted (the limiting hole 206 cooperates with the limiting rod 11 to facilitate limiting the bottom plate 8 of the tank). Then, the motor 201 is started to reverse and drive the bottom plate 8, the vertical rod 12, and the placement frame 13 back to the initial position. By setting the lifting limiting component 2, it is convenient to drive the bottom plate 8, the vertical rod 12, and the placement frame 13 to move up and down as a whole. The lifting plate 205 is movably connected to the bottom plate 8 of the tank, which makes it convenient to remove the bottom plate 8, the vertical rod 12, and the placement frame 13 as a whole. For the fast replacement of activated carbon, the setting of the limiting rod 11 facilitates the limiting of the bottom plate 8 of the tank and prevents the bottom plate 8, the vertical rod 12, and the placement frame 13 from tipping over. The setting of multiple sets of placement frames 13 and wire mesh 14 ensures the absorption effect of DMF exhaust gas. The wire mesh 14 will not obstruct the movement of DMF exhaust gas.

[0037] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A DMF exhaust gas recovery and treatment device, comprising a base plate, characterized in that, A support plate is installed at one end of the base plate. The support plate is L-shaped. A groove is opened in the middle of the vertical end of the support plate. A lifting and limiting component is installed inside the support plate. A tank is installed in the middle of the horizontal end of the support plate. The tank is adapted to a tank bottom plate. A vertical rod is installed in the middle of the upper part of the tank bottom plate. Multiple sets of evenly distributed placement frames are installed on the vertical rod.

2. The DMF tail gas recovery and treatment device according to claim 1, characterized in that, Multiple sets of ear plates are installed on the side of the base plate, and a locking hole is provided in the middle of the upper surface of the base plate.

3. The DMF tail gas recovery and treatment device according to claim 1, characterized in that, An air inlet pipe is installed through the lower side of the tank, and an air outlet pipe is provided at the upper end of the tank.

4. The DMF tail gas recovery and treatment device according to claim 2, characterized in that, Multiple sets of evenly distributed limiting rods are installed on the lower part of the tank bottom plate.

5. The DMF tail gas recovery and treatment device according to claim 1, characterized in that, A wire mesh is installed at the bottom inside the placement frame.

6. The DMF tail gas recovery and treatment device according to claim 4, characterized in that, The lifting limit assembly includes a motor, which is fixedly installed on the horizontal end of the support plate.

7. The DMF tail gas recovery and treatment device according to claim 6, characterized in that, The motor is connected to a screw, which is rotatably connected to a support plate, and the screw is threadedly connected to a sliding plate.

8. The DMF tail gas recovery and treatment device according to claim 7, characterized in that, The sliding plate and the sliding groove are adapted to slide together.

9. The DMF tail gas recovery and treatment device according to claim 8, characterized in that, A connecting plate is connected to the middle of the side of the slide plate. A lifting plate is installed on the side of the connecting plate away from the slide plate, and the connecting plate is on the upper side of the lifting plate. The upper part of the lifting plate is fixedly connected to the lower part of the tank bottom plate. Multiple sets of evenly distributed limiting holes are opened inside the lifting plate.

10. The DMF tail gas recovery and treatment device according to claim 9, characterized in that, The lifting plate is adapted to the locking hole, and the height of the locking hole and the connecting plate is half that of the lifting plate. The limiting hole is adapted to the limiting rod.

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