Tail gas treatment device for paraformaldehyde production

Abstract

The utility model provides a paraformaldehyde production tail gas treatment device which comprises a working barrel, a rotating motor is fixedly connected to the upper end face of the working barrel, a rotating shaft of the rotating motor penetrates through the working barrel to be fixedly connected with a screening disc, and the screening disc is rotationally connected to the inner wall of the working barrel. An air inlet pipe and an air outlet pipe are arranged on the side wall of the working barrel, a water pump is arranged on the outer wall of one side of the working barrel, a water supply pipe is arranged on the water pump, and the water supply pipe penetrates through the working barrel; a recovery assembly; the recycling assembly comprises a rotating motor fixedly connected to the outer wall of the working barrel, a rotating shaft of the rotating motor is fixedly connected with a rotating box, a plurality of containing openings are formed in the upper end face of the rotating box and matched with the working barrel, and the upper end face of the rotating box is attached to the lower end face of the working barrel. According to the utility model, the long-term use can be better ensured, and meanwhile, the cleaning work is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field related to paraformaldehyde production, in particular to a paraformaldehyde production tail gas treatment device. Background Art

[0002] The prior art discloses a polyformaldehyde production tail gas treatment device with application number CN202322096734.1. In the proposed scheme, the driving unit 8 drives the movable part 6 to rotate, so that each ventilation slot 7 can be connected to the air inlet and exhaust ducts, and the filter dust bag performs exhaust gas filtering in the ventilation slot 7. In this way, when a filter dust bag is full and needs to be replaced, the driving unit 8 will rotate the ventilation slot 7 outside the installation slot to facilitate replacement, and one of the other two ventilation slots 7 can continue to perform filtering operations to ensure the continuous operation of the equipment. The extra one of the three ventilation slots 7 is used for backup to reduce the operating interval of personnel.

[0003] The deficiency of the above-mentioned prior art is that, in the process of replacing the dust bag, corresponding cleaning work needs to be carried out, and impurities such as dust adhere to the dust bag, which makes it inconvenient to clean. At the same time, the holes of the dust bag are small, and the blockage is not easy to observe, and it is impossible to accurately judge the time for replacement, which easily leads to the problem of low processing efficiency due to failure to replace the dust bag in time. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for treating tail gas from the production of paraformaldehyde.

[0005] The embodiment of the utility model provides a device for treating tail gas from the production of paraformaldehyde, comprising:

[0006] A working cylinder, the upper end surface of which is fixedly connected to a rotating motor, the rotating shaft of which passes through the working cylinder and is fixedly connected to a screening disc, the screening disc is rotatably connected to the inner wall of the working cylinder, an air inlet pipe and an air outlet pipe are arranged on the side wall of the working cylinder, a water pump is arranged on the outer wall of one side of the working cylinder, a water supply pipe is arranged on the water pump, and the water supply pipe passes through the working cylinder;

[0007] Recovery component; the recovery component includes a rotating motor fixedly connected to the outer wall of the working cylinder, a rotating box is fixedly connected to the rotating shaft of the rotating motor, a plurality of receiving ports are provided on the upper end surface of the rotating box, and the plurality of receiving ports are matched with the working cylinder, the upper end surface of the rotating box fits the lower end surface of the working cylinder, and a closing disk is provided on the outer wall of the working cylinder, and the closing disk matches the rotating box.

[0008] Furthermore, an annular groove is provided on the inner wall of the working cylinder, a limit ring is rotatably connected in the annular groove, and the inner wall of the limit ring is fixedly connected to the screening disk.

[0009] Furthermore, a hole frame is provided on the upper end surface of the screening disc, and the inner cavity of the hole frame is arranged in a funnel shape.

[0010] Furthermore, the water supply pipe is L-shaped.

[0011] Furthermore, the rotating shaft of the rotating motor is fixedly connected with auxiliary blades, and the auxiliary blades are located in the working cylinder.

[0012] Furthermore, the rotating box is made of transparent material.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the staff can spray the agent onto the screening plate with the help of a water pump and a water supply pipe, and then while the screening plate completes the dust filtering work, the formaldehyde gas is treated with the help of the agent, and the dust mixture is made to fall into the rotating box below through liquid flushing and rotating centrifugal force. The state of the mixed liquid is convenient for the staff to carry out cleaning work, and at the same time, such flushing makes the screening plate always keep clean, and then it can continue to work for a long time without the problem of inconvenience in observation due to small holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a tail gas treatment device for paraformaldehyde production described in an embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a tail gas treatment device for the production of paraformaldehyde described in an embodiment of the utility model.

[0017] Figure 3 for Figure 2 A magnified view of the structure in Figure 1.

[0018] In the above drawings: 1 working cylinder, 2 rotating motor, 3 screening disc, 4 air inlet pipe, 5 air outlet pipe, 6 water pump, 7 water supply pipe, 8 rotating motor, 9 rotating box, 10 containing port, 11 closing disc, 12 annular groove, 13 limiting ring, 14 hole rack, 15 auxiliary fan blade. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-Figure 3 As shown, the embodiment of the utility model proposes a polyformaldehyde production tail gas treatment device, comprising:

[0021] A working cylinder 1 is provided with a rotating motor 2 fixedly connected to the upper end surface of the working cylinder 1, and a rotating shaft of the rotating motor 2 passes through the working cylinder 1 and is fixedly connected to a screening disc 3. An auxiliary fan blade 15 is fixedly connected to the rotating shaft of the rotating motor 2, and the auxiliary fan blade 15 is located in the working cylinder 1, so that the working cylinder 1 can draw air upward from the inside, and the exhaust gas treatment efficiency is faster. An annular groove 12 is provided on the inner wall of the working cylinder 1, and a limiting ring 13 is rotatably connected in the annular groove 12. The inner wall of the limiting ring 13 is fixedly connected to the screening disc 3. The screening disc 3 can rotate more stably with the help of limitation, and the screening disc 3 can rotate more stably. The dividing plate 3 is rotatably connected to the inner wall of the working cylinder 1. A hole frame 14 is provided on the upper end surface of the screening plate 3. The inner cavity of the hole frame 14 is arranged in a funnel shape. With the help of the funnel structure, it is prevented that the upper medicine is fully accumulated on the edge under the action of centrifugal force, which affects the full completion of the treatment work. An air inlet pipe 4 and an air outlet pipe 5 are provided on the side wall of the working cylinder 1. A water pump 6 is provided on the outer wall of one side of the working cylinder 1. A water supply pipe 7 is provided on the water pump 6. The water supply pipe 7 runs through the working cylinder 1. The water supply pipe 7 is L-shaped, so that the medicine can be accurately sprayed on the screening plate 3 to complete the treatment work.

[0022] Recovery component; the recovery component includes a rotating motor 8 fixedly connected to the outer wall of the working cylinder 1, and a rotating box 9 is fixedly connected to the rotating shaft of the rotating motor 8. The rotating box 9 is made of transparent material to facilitate observation by the staff. A plurality of receiving ports 10 are provided on the upper end surface of the rotating box 9, and the plurality of receiving ports 10 are matched with the working cylinder 1. The upper end surface of the rotating box 9 fits the lower end surface of the working cylinder 1. A closing disk 11 is provided on the outer wall of the working cylinder 1, and the closing disk 11 matches the rotating box 9. The setting of the closing disk 11 prevents the same receiving port 10 from being connected to the inside and outside of the working cylinder 1 at the same time, thereby avoiding leakage.

[0023] The detailed working process of the utility model is as follows:

[0024] The air inlet pipe 4 at the bottom inputs the exhaust gas into the working cylinder 1, and then the treated exhaust gas will be discharged through the exhaust pipe 5. In this process, the exhaust gas will pass through the screening plate 3, and the screening plate 3 will use its own holes to filter and intercept the dust in the exhaust gas, so that the dust in the exhaust gas cannot move to the top of the working cylinder 1, and then be discharged through the exhaust pipe 5. At the same time, the water pump 6 will extract the corresponding reagents and spray them onto the screening plate 3 through the water supply pipe 7. At this time, the rotating motor 2 will drive the screening plate 3 to rotate through the rotating shaft, so that the reagents falling on the screening plate 3 can fully and comprehensively contact the holes on the screening plate 3 under the action of centrifugal force, and then fully contact with the exhaust gas passing through the holes, so as to treat the formaldehyde gas in the exhaust gas. At the same time, the reagents will contact the powder coming out of the holes. The dust forms a mixed liquid, which will fall off the sieve disc 3 under the action of its own gravity and the centrifugal force of the rotation of the sieve disc 3, and then go down to the bottom of the working cylinder 1 and enter into the receiving port 10 on the rotating box 9, so that the formaldehyde gas and dust in the exhaust gas are smoothly treated, and the blockage is avoided, so that the device can be used stably for a long time. Afterwards, after observing that the receiving port 10 is full through the transparent rotating box 9, the rotating motor 8 can be controlled to operate the rotating box 9 to rotate, and the full receiving port 10 can be rotated to the outside of the working cylinder 1, and the new receiving port 10 can be rotated to the bottom of the working cylinder 1. The mixed liquid contained in the receiving port 10 is easier to clean than the dust blocked in the hole, which is very convenient for the staff to use.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A device for treating tail gas from the production of paraformaldehyde, characterized in that: include: A working cylinder (1), wherein a rotating motor (2) is fixedly connected to the upper end surface of the working cylinder (1), the rotating shaft of the rotating motor (2) passes through the working cylinder (1) and is fixedly connected to a screening disc (3), the screening disc (3) is rotatably connected to the inner wall of the working cylinder (1), an air inlet pipe (4) and an air outlet pipe (5) are provided on the side wall of the working cylinder (1), a water pump (6) is provided on the outer wall of one side of the working cylinder (1), a water supply pipe (7) is provided on the water pump (6), and the water supply pipe (7) passes through the working cylinder (1); A recovery component; the recovery component comprises a rotating motor (8) fixedly connected to the outer wall of a working cylinder (1); a rotating box (9) is fixedly connected to the rotating shaft of the rotating motor (8); a plurality of receiving openings (10) are provided on the upper end surface of the rotating box (9); the plurality of receiving openings (10) are matched with the working cylinder (1); the upper end surface of the rotating box (9) fits the lower end surface of the working cylinder (1); a closing disk (11) is provided on the outer wall of the working cylinder (1); the closing disk (11) matches the rotating box (9).

2. A paraformaldehyde production tail gas treatment device according to claim 1, characterized in that: in: An annular groove (12) is provided on the inner wall of the working cylinder (1), a limit ring (13) is rotatably connected in the annular groove (12), and the inner wall of the limit ring (13) is fixedly connected to the screening disc (3).

3. A paraformaldehyde production tail gas treatment device according to claim 1, characterized in that: in: A hole frame (14) is provided on the upper end surface of the screening disc (3), and the inner cavity of the hole frame (14) is arranged in a funnel shape.

4. A paraformaldehyde production tail gas treatment device according to claim 1, characterized in that: in: The water supply pipe (7) is L-shaped.

5. The device for treating tail gas from the production of paraformaldehyde according to claim 1, characterized in that: in: An auxiliary fan blade (15) is fixedly connected to the rotating shaft of the rotating motor (2), and the auxiliary fan blade (15) is located in the working cylinder (1).

6. A paraformaldehyde production tail gas treatment device according to claim 1, characterized in that: in: The rotating box (9) is made of transparent material.

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