A methanol and formaldehyde tail gas treatment device

Abstract

The utility model discloses a methanol and formaldehyde tail gas treatment device, which relates to the field of tail gas treatment and aims to solve the problem of methanol and formaldehyde tail gas polluting the environment. The key points of the technical solution are: comprising a box, a partition plate is fixed inside the box, the partition plate divides the box into a water tank area and a humidification area, the water tank area and the upper part of the humidification area are connected, an air intake pump is fixed on one side of the box, and an air pipe is fixed at the lower end of the air intake pump. The utility model sets an air intake pump so that the tail gas can be transported to the water tank area and can be initially filtered in the water tank area; sets a humidification pipe so that the tail gas filtered in the water tank area can be humidified and filtered, and some harmful substances are removed again, thereby completing the secondary purification of the tail gas; and sets two purification plates in the exhaust pipe, the methanol and formaldehyde remaining in the tail gas can be effectively purified three times, which greatly improves the filtering effect of the tail gas and reduces the pollution of the tail gas to the environment.

Description

Technical Field

[0001] The utility model belongs to the field of tail gas purification, and specifically relates to a methanol and formaldehyde tail gas treatment device. Background Art

[0002] The exhaust gas treatment device is a device that purifies the exhaust gas to reduce the pollution to the environment. At present, the methanol and formaldehyde in the exhaust gas will have a great impact on the environment. When the exhaust gas treatment devices on the market are used, due to the simple structure of the general exhaust gas devices, they can only perform simple filtering of the exhaust gas, and the exhaust gas treatment effect is poor. In addition, the device also has the problem of unstable filtering treatment. For this reason, we propose a methanol and formaldehyde exhaust gas treatment device.

[0003] The patent application with publication number CN209630913U discloses an exhaust gas treatment device for formaldehyde production, including: a base plate and an adsorption tube, a main seat is installed at the upper end of the base plate, an air inlet is provided at one end of the main seat, the adsorption tube is located at one end of the air inlet, and an adsorption block is bonded to the inner wall of the adsorption tube, the bottom end of the adsorption tube is connected to a water tank, a water inlet is installed at the front end of the water tank, a water outlet pipe is provided at the right end of the water tank, a connecting pipe is installed at the top right side of the water tank, and an air outlet pipe is provided at one end of the connecting pipe.

[0004] The above patent simply uses activated carbon and water to filter formaldehyde, but the filtering effect is not good enough to remove methanol and formaldehyde in the exhaust gas more cleanly, and the structure is too complicated, making maintenance more difficult.

[0005] In summary, the utility model provides a methanol and formaldehyde tail gas treatment device to solve the above problems. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a methanol and formaldehyde tail gas treatment device, which has the advantages of better purification effect through two water purifications, one filter plate and two purification plates, and the structure of the filter plate and the purification plate is simple and easy to replace.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A methanol and formaldehyde tail gas treatment device, comprising: a box body, a box cover is installed on the upper side of the box body, an isolation plate is fixed inside the box body, the isolation plate divides the box body into a water tank area and a humidification area, the upper parts of the water tank area and the humidification area are connected, an air intake pump is fixed on one side of the box body, an air pipe is fixed on the lower end of the air intake pump, the lower end of the air pipe passes through the lower part of one side of the box body and is located at the bottom of the water tank area;

[0009] A plurality of humidifying tubes are installed at the upper part of the humidifying area, a water pool is provided at the bottom of the humidifying area, one ends of the plurality of humidifying tubes are connected to the water pool, an air outlet pipe is fixed at the middle part of the other side of the box body, the air outlet pipe is connected with the humidifying area, two semicircular grooves are provided on the circumference of the air outlet pipe, a circular plate is provided in the semicircular groove, two fixed closing components corresponding to the two semicircular grooves are provided on the circumference of the air outlet pipe, and an air outlet pump is provided at one end of the air outlet pipe.

[0010] By adopting the above technical scheme, the intake pump transports the exhaust gas to the water tank area, where it can be initially filtered, and some harmful substances will combine with water to complete the initial purification; the exhaust gas filtered in the water tank area is humidified and filtered through the humidifying pipe to remove some harmful substances again, thereby completing the secondary purification of the exhaust gas. The two purification plates arranged in the exhaust pipe can effectively carry out the third purification of the methanol and formaldehyde remaining in the exhaust gas, and the fixed closing assembly can be used to quickly replace the purification plate, which effectively solves the problem of poor purification effect due to the long-term use of the purification plate. Finally, the exhaust pump is used to discharge the purified exhaust gas, which greatly improves the filtering effect of the exhaust gas and reduces the pollution of the exhaust gas to the environment. The structure is simple and easy to use.

[0011] The utility model is further configured as follows: the fixed closing component includes a base fixed to the outside of the air outlet pipe, a baffle slidably fitted inside the base, a spring fixed between the base and the baffle, and a circular plate fixed to one side of the baffle, the circular plate corresponds to the purification plate, and the water outlet end of the water pump is connected to the water inlet ends of the multiple humidification tubes.

[0012] By adopting the above technical solution, through the provision of the baffle and the circular plate, when the purification plate is replaced, the baffle is pushed into or extended out of the base, which can simultaneously drive the circular plate to create or cancel the fixed relationship with the purification plate, thereby completing the rapid disassembly and assembly of the purification plate and positioning it to make it more stable during filtration.

[0013] The utility model is further configured as follows: a filter plate is installed on the upper part of the water tank area, protrusions are fixed on opposite sides of the filter plate, two grooves are provided on the inner wall of the box body and the opposite inner sides of the isolation plate, and the two protrusions are slidably matched with the two grooves.

[0014] By adopting the above technical solution, the filter plate is set, so that the exhaust gas that is initially purified in the water tank area can be purified again through the filter plate, so that the exhaust gas is purified more cleanly, and the harmful substances purified by the subsequent two purification plates are less, extending the service life of the purification plate. By setting the protrusions and grooves, the filter plate can be better fixed on the upper side of the water tank area and is more convenient to replace.

[0015] The utility model is further configured that: activated carbon is used as a filler inside the filter plate.

[0016] By adopting the above technical solution and using activated carbon, most of the pollutants in the exhaust gas can be adsorbed to achieve the effect of purifying the exhaust gas.

[0017] The utility model is further configured as follows: the end extending into the water tank area is a solid structure, and a plurality of air holes are opened on the peripheral side of the air pipe end.

[0018] By adopting the above technical solution, the exhaust gas can directly contact the water in the lower part of the water tank area when discharged through the air pipe, so the purification effect is better and the subsequent purification pressure is reduced.

[0019] The utility model is further configured as follows: a plurality of humidifying tubes are located at the upper part of the humidifying area, a plurality of mist outlets are arranged at the lower side of the humidifying tubes, a water pump is arranged in the water pool, and the water pump is connected to the plurality of humidifying tubes.

[0020] By adopting the above technical solution, the exhaust gas can have more contact with the water mist in the humidification area, and the water mist purifies the substances in the exhaust gas, making the purification effect better. The water pool can realize the recycling of water in the humidification area, saving more resources.

[0021] The utility model is further configured as follows: the interior of the two purification plates is filled with a mixture of activated silicon, activated carbon and activated alumina.

[0022] By adopting the above technical solution, the purification plate can finally purify the small amount of methanol and formaldehyde remaining in the exhaust gas, greatly improving the purification effect of the exhaust gas and reducing air pollution.

[0023] In summary, the beneficial technical effects of the utility model are:

[0024] 1. By setting up an air intake pump, the exhaust gas can be transported to the water tank area and can be initially filtered in the water tank area; by setting up a humidifying pipe, the exhaust gas filtered in the water tank area can be humidified and filtered to remove some harmful substances again, thereby completing the secondary purification of the exhaust gas; by setting up two purification plates in the exhaust pipe, the methanol and formaldehyde remaining in the exhaust gas can be effectively purified for a third time, which greatly improves the filtering effect of the exhaust gas and reduces the pollution of the exhaust gas to the environment.

[0025] 2. The fixed closing assembly allows the purification board to be quickly replaced, effectively solving the problem of poor purification effect caused by long-term use of the purification board. It has a simple structure and is easy to use.

[0026] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 This is a schematic diagram of a three-dimensional structure of a box assembly according to an embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the humidification area of ​​one embodiment of the utility model;

[0030] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0031] Figure 4 for Figure 2 Schematic diagram of the structure at B in the middle;

[0032] Figure 5 This is a schematic diagram of a three-dimensional structure of a filter plate assembly according to an embodiment of the utility model;

[0033] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Box body; 101. Water tank area; 102. Humidification area; 103. Box cover; 104. Humidification tube; 105. Isolation plate; 106. Groove; 107. Bump; 108. Filter plate; 109. Water pump; 2. Air intake pump; 201. Air pipe; 3. Air outlet pump; 301. Air outlet pipe; 302. Baffle; 303. Base; 304. Purification plate; 305. Spring; 306. Round plate. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0037] Reference Figure 1-6 , a methanol and formaldehyde tail gas treatment device disclosed in the utility model, comprising: a box body 1, a box cover 103 is installed on the upper side of the box body 1, an isolation plate 105 is fixed inside the box body 1, the isolation plate 105 divides the box body 1 into a water tank area 101 and a humidification area 102, the upper parts of the water tank area 101 and the humidification area 102 are connected, an air intake pump 2 is fixed on one side of the box body 1, an air pipe 201 is fixed on the lower end of the air intake pump 2, and the lower end of the air pipe 201 passes through the lower part of one side of the box body 1 and is located at the bottom of the water tank area 101;

[0038] A plurality of humidifying tubes 104 are installed at the upper part of the humidifying area 102, and a water pool is provided at the bottom of the humidifying area 102. One ends of the plurality of humidifying tubes 104 are connected to the water pool. An air outlet pipe 301 is fixed in the middle of the other side of the box body 1. The air outlet pipe 301 is connected to the humidifying area 102. Two semicircular grooves are provided on the circumference of the air outlet pipe 301. A circular plate 306 is installed in the semicircular groove. Two fixed closing components corresponding to the two semicircular grooves are installed on the circumference of the air outlet pipe 301. An air outlet pump 3 is installed at one end of the air outlet pipe 301.

[0039] The application of one aspect of this embodiment is as follows: when the tail gas needs to be purified, the air intake pump 2 is first turned on, and the tail gas enters the air pipe 201 through the air intake end of the air intake pump 2, and then enters the bottom of the water tank area 101 through the air pipe 201, so that the tail gas is fully in contact with the water in the water tank, so that the tail gas can be purified for the first time. The tail gas after the first purification slowly rises into the humidification area 102, and then the water pump 109 is started, so that the water pump 109 transfers the water in the water pool to the humidification pipe 104, and then the humidification pipe 104 is sprayed, and then the tail gas is fully in contact with the mist, so that the mist purifies the tail gas for the second time, and the mist after spraying falls into the water pool and is collected again to form a water circulation operation, and at the same time, the air outlet pump 3 is started to inhale, so that the tail gas is discharged through the air outlet pipe 301. When passing through the air outlet pipe 301, the two purification plates 304 will purify the tail gas, thereby finally purifying the remaining small amount of methanol and formaldehyde.

[0040] When the purification plate 304 needs to be replaced, the semicircular groove can be opened or closed by fixing the closing component, thereby realizing quick replacement of the purification plate 304 .

[0041] It should be noted that all electrical devices involved in this application can be powered by batteries or external power supplies.

[0042] Reference Figure 2-3The fixed closing assembly of this embodiment includes a base 303 fixed to the outside of the air outlet pipe 301, a baffle 302 slidably fitted inside the base 303, a spring 305 fixed between the base 303 and the baffle 302, and a circular plate 306 fixed to one side of the baffle 302, and the circular plate 306 corresponds to the purification plate 304. The air outlet pipe 301 is provided with an arc groove from one side, and the purification plate 304 is installed in the arc groove. When the purification plate 304 needs to be replaced, the baffle 302 is manually slid so that the baffle 302 is retracted into the base 303 to open the semicircular groove. At the same time, the baffle 302 drives the circular plate 306 to move, so that the circular plate 306 moves to the side away from the purification plate 304. At this time, the spring 305 is in a compressed state, and then the circular plate 306 cancels the fixation of the purification plate 304. Then, the purification plate 304 that needs to be replaced is manually taken out and replaced with a new purification plate 304. At this time, the baffle 302 is released, and the spring 305 elastically rebounds to drive the baffle 302 to push the base 303 out to close the semicircular groove. At the same time, the baffle 302 drives the circular plate 306 to restore the fixation of the purification plate 304, completing the replacement of the purification plate 304.

[0043] Reference Figure 5-6 A filter plate 108 is installed on the upper part of the water tank area 101, and protrusions 107 are fixed on the opposite sides of the filter plate 108. Two grooves 106 are provided on the inner wall of the box body 1 and the opposite inner sides of the isolation plate 105, and the two protrusions 107 are slidably matched in the two grooves 106. A notch is provided on one side of the upper part of the box body 1, and one end of the filter plate 108 is located in the notch and extends out of the outside of the box body 1.

[0044] Activated carbon is used as a filler inside the filter plate 108. When the tail gas is filtered by the water at the bottom of the water tank area 101 and slowly rises to the filter plate 108, the activated carbon in the filter plate 108 adsorbs harmful substances in the tail gas.

[0045] When the filter plate 108 needs to be replaced, the filter plate 108 to be replaced is manually pulled out from the groove on one side of the box body 1, and the new filter plate 108 is extended into the upper part of the water tank area 101 through the notch. At the same time, the protrusions 107 on the opposite sides of the filter plate 108 are inserted into the grooves 106 to complete the replacement of the filter plate 108.

[0046] Reference Figure 1-2 The end extending into the water tank area 101 is a solid structure, and a plurality of air holes are provided around the end of the air pipe 201. When the tail gas needs to be purified, the tail gas will flow downward along the air pipe 201, and then be discharged from the plurality of air holes at the end of the air pipe 201 to contact and filter with the water at the bottom of the water tank area 101. The water outlet end of the water pump 109 is connected to the water inlet end of the plurality of humidifying pipes 104.

[0047] Reference Figure 2In this embodiment, a plurality of humidifying tubes 104 are located at the upper part of the humidifying area 102, a plurality of mist outlets are provided at the lower side of the humidifying tubes 104, a water pool is provided at the lower part of the humidifying area 102, a water pump 109 is provided in the water pool, and the water pump 109 is connected to the plurality of humidifying tubes 104. When the humidifying tubes 104 are needed to purify the tail gas, the water pump 109 is first started, and the water pump 109 transports the water in the water pool to the plurality of humidifying tubes 104, and then sprays the water from the mist outlets at the lower side of the plurality of humidifying tubes 104, so as to make more sufficient contact with the tail gas, purify the harmful substances in the tail gas, and the sprayed water mist will be accumulated again in the water pool at the lower part of the humidifying area 102, so as to complete the recycling of water.

[0048] Reference Figure 2-3 In this embodiment, the two purification plates 304 are filled with a mixture of activated silicon, activated carbon, and activated alumina. When the exhaust gas passes through the exhaust pipe 301, the activated silicon, activated carbon, and activated alumina in the two purification plates 304 will fully contact the exhaust gas and purify the residual methanol and formaldehyde again to complete the purification of the exhaust gas.

[0049] The above-mentioned embodiments may be combined with each other.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A methanol and formaldehyde tail gas treatment device, comprising: A box body (1), characterized in that a box cover (103) is installed on the upper side of the box body (1), an isolation plate (105) is fixed inside the box body (1), the isolation plate (105) divides the box body (1) into a water tank area (101) and a humidification area (102), the upper parts of the water tank area (101) and the humidification area (102) are connected, an air intake pump (2) is fixed on one side of the box body (1), an air pipe (201) is fixed at the lower end of the air intake pump (2), and the lower end of the air pipe (201) passes through the lower part of one side of the box body (1) and is located at the bottom of the water tank area (101); A plurality of humidifying tubes (104) are installed at the upper part of the humidifying area (102), a water pool is provided at the bottom of the humidifying area (102), one ends of the plurality of humidifying tubes (104) are connected to the water pool, an air outlet pipe (301) is fixed in the middle of the other side of the box body (1), the air outlet pipe (301) is connected to the humidifying area (102), two semicircular grooves are provided on the circumference of the air outlet pipe (301), a purification plate (304) is installed in the semicircular grooves, two fixed closing components corresponding to the two semicircular grooves are installed on the circumference of the air outlet pipe (301), and an air outlet pump (3) is installed at one end of the air outlet pipe (301).

2. A methanol and formaldehyde tail gas treatment device according to claim 1, characterized in that: The fixed closing component includes a base (303) fixed to the outside of the air outlet pipe (301), a baffle (302) slidably fitted inside the base (303), a spring (305) fixed between the base (303) and the baffle (302), and a circular plate (306) fixed to the inside of the baffle (302), wherein the circular plate (306) corresponds to the purification plate (304).

3. A methanol and formaldehyde tail gas treatment device according to claim 2, characterized in that: A filter plate (108) is installed on the upper part of the water tank area (101), and protrusions (107) are fixed on opposite sides of the filter plate (108). Two grooves (106) are provided on the inner wall of the box body (1) and the opposite inner side of the isolation plate (105), and the two protrusions (107) are slidably fitted in the two grooves (106).

4. A methanol and formaldehyde tail gas treatment device according to claim 3, characterized in that: The filter plate (108) is filled with activated carbon.

5. The methanol and formaldehyde tail gas treatment device according to claim 1, characterized in that: The end of the air pipe (201) extending into the water tank area (101) is a solid structure, and a plurality of air holes are provided around the end of the air pipe (201).

6. A methanol and formaldehyde tail gas treatment device according to claim 1, characterized in that: The plurality of humidifying tubes (104) are located at the upper part of the humidifying area (102), and a plurality of mist outlets are provided at the lower side of the humidifying tubes (104). A water pump (109) is provided in the water pool, and the water outlet end of the water pump (109) is connected to the water inlet end of the plurality of humidifying tubes (104).

7. The methanol and formaldehyde tail gas treatment device according to claim 1, characterized in that: The two purification plates (304) are filled with a mixture of activated silicon, activated carbon and activated alumina.

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