Formaldehyde absorption device for medium density fiberboard

Abstract

The utility model discloses a medium density fiberboard formaldehyde absorption device which is characterized in that the left side of a board placing box is connected with an air inlet pipe, the air inlet pipe is connected with an inner air distribution pipe, a fan is arranged on the right side of the inner air distribution pipe, a board support is arranged on the right side of the fan, and the board placing box can be directly erected on an assembly line for negative pressure setting. Or the plate placing box can be directly replaced by an independent sealed placing room, the separation of formaldehyde is promoted by a blowing mode, then the treatment efficiency can reach 96-97% by a photocatalytic degradation mode, the rest part is absorbed by activated carbon, and the overall absorption efficiency can reach 99% or above. Meanwhile, the usage amount of activated carbon can be greatly reduced, the output of solid waste is reduced, the plate containing box can be reconstructed on an existing plant or production line, the formaldehyde absorption device is small in size and low in construction and use cost, and economic benefits can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medium-density fiberboard production and processing equipment, in particular to a formaldehyde absorption device for medium-density fiberboard. Background Art

[0002] Industrial formaldehyde waste gas is a toxic gas that is harmful to human health. Excessive industrial formaldehyde emissions can cause air pollution and affect people's normal lives. Long-term exposure to industrial formaldehyde waste gas can cause respiratory diseases, skin diseases, eye diseases, and even cancer.

[0003] There are four main ways to treat industrial formaldehyde waste gas: capture, control, treatment and disposal.

[0004] The capture method is the most commonly used method for industrial formaldehyde waste gas treatment. It is a method of capturing and separating industrial formaldehyde emissions from pollution sources through various capture equipment such as fans, exhaust hoods, adsorption towers, activated carbon adsorbers, etc.

[0005] The control method is to control the emission sources of industrial formaldehyde, reduce or avoid industrial formaldehyde emissions, and thus achieve the purpose of controlling industrial formaldehyde pollution.

[0006] The treatment method is to treat industrial formaldehyde waste gas to make it meet the national emission standards, thereby controlling industrial formaldehyde pollution.

[0007] Currently, China Patent No.: CN202120565251.X discloses a formaldehyde absorption device. It includes an absorption tower, and the absorption tower includes a primary absorption tower and a secondary absorption tower; the primary absorption tower and the secondary absorption tower are both single towers with the same height, both of which are 19.5-20m. The single-stage absorption process of the utility model only uses one absorption tower, and the two-stage absorption uses two absorption towers. The upper and lower sections of the absorption tower have the same filler, which reduces resistance, saves energy consumption, reduces floor space and equipment use, reduces investment, and each absorption tower is 19.5-20m high, which is much lower than the height of two absorption towers used in series, which promotes the absorption effect. However, in the actual use process of the prior art, there are still problems such as using absorption towers for treatment, general absorption effect for formaldehyde emitted by low-concentration glue, and high construction and use costs. Utility Model Content

[0008] Therefore, in view of the above problems, the utility model proposes a medium-density fiberboard formaldehyde absorption device, which solves the technical problems that the prior art still uses an absorption tower for treatment during actual use, has a general absorption effect on formaldehyde emitted by low-concentration glue, and has high construction and use costs.

[0009] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a medium-density fiberboard formaldehyde absorption device, whose structure includes a board placement box, an air intake pipe, an inner cloth air pipe, a fan, a board bracket, an exhaust pipe, and a formaldehyde absorption device. The left side of the board placement box is connected to the air intake pipe, and the air intake pipe is connected to the inner cloth air pipe. A fan is arranged on the right side of the inner cloth air pipe, and a board bracket is arranged on the right side of the fan. The right end of the board placement box is connected to the formaldehyde absorption device through the exhaust pipe. The formaldehyde absorption device includes a sealed absorption box, a catalytic lamp bracket, a photocatalytic lamp, a catalytic net, an exhaust pump, a rear absorption tank, and an activated carbon absorption box. A catalytic lamp bracket is arranged inside the sealed absorption box, and a plurality of photocatalytic lamps are arranged on the catalytic lamp bracket. A catalytic net is arranged below the photocatalytic lamp. The photocatalytic lamp and the catalytic net are arranged in groups. 2-5 groups of this structure are arranged in the sealed absorption box. The sealed absorption box is also connected to the rear absorption tank through the absorption box exhaust pipe. An exhaust pump is arranged on the absorption box exhaust pipe, and an activated carbon absorption box is arranged inside the rear absorption tank.

[0010] Furthermore, the catalytic mesh is made of platinum-titanium dioxide.

[0011] Furthermore, the catalytic nets are arranged vertically, and the intervals between the catalytic nets are 2-3 cm.

[0012] Furthermore, the inner surface of the sealed absorption box is arranged as a mirror structure.

[0013] Furthermore, an exhaust pipe is provided at the rear end of the activated carbon absorption box to connect with the air intake pipe.

[0014] Furthermore, the sealed absorption box can be connected to a plurality of plate placement boxes.

[0015] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: the formaldehyde absorption device for medium-density fiberboard improves the existing technology which still uses an absorption tower for treatment during actual use. The absorption effect on formaldehyde emitted by low-concentration glue is general, and the construction and use costs are high. During use, the board placement box can be directly set up on the assembly line for negative pressure setting, or the board placement box can be directly replaced by a separate sealed placement room. The precipitation of formaldehyde is promoted by blowing, and then the treatment efficiency can reach 96-97% through photocatalytic degradation. The remaining part is absorbed by activated carbon, and the overall absorption efficiency can reach more than 99%. At the same time, the use of activated carbon can be greatly reduced, and the amount of solid waste generated can be reduced. The board placement box can be rebuilt on an existing factory building or production line. The formaldehyde absorption device is small in size, and the construction and use costs are low, which can effectively improve economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the formaldehyde absorption device of the utility model.

[0018] In the figure: 1. Plate placement box; 2. Air inlet pipe; 3. Inner air duct; 4. Fan; 5. Plate bracket; 6. Exhaust pipe; 7. Formaldehyde absorption device; 11. Sealed absorption box; 12. Catalytic lamp bracket; 13. Photocatalytic lamp; 14. Catalytic net; 15. Exhaust pump; 16. Post-absorption tank; 17. Activated carbon absorption box. DETAILED DESCRIPTION

[0019] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0020] refer to Figure 1-Figure 2 The present embodiment provides a medium-density fiberboard formaldehyde absorption device, which structure includes a board placement box 1, an air intake pipe 2, an inner air pipe 3, a fan 4, a board bracket 5, an exhaust pipe 6, and a formaldehyde absorption device 7. The left side of the board placement box 1 is connected to the air intake pipe 2, the air intake pipe 2 is connected to the inner air pipe 3, the right side of the inner air pipe 3 is provided with a fan 4, the right side of the fan 4 is provided with a board bracket 5, the right end of the board placement box 1 is connected to the formaldehyde absorption device 7 through the exhaust pipe 6, and the formaldehyde absorption device 7 includes a sealed absorption box 11, a catalytic lamp bracket 12, a photocatalytic lamp 13, a catalytic net 14, an exhaust pump 15, a rear absorption tank 16, an activated carbon absorption box 17, a catalytic lamp holder 12 is arranged inside the sealed absorption box 11, a plurality of photocatalytic lamps 13 are arranged on the catalytic lamp holder 12, a catalytic net 14 is arranged below the photocatalytic lamp 13, the photocatalytic lamps 13 and the catalytic net 14 are arranged in groups, 2-5 groups of such structures are arranged in the sealed absorption box 11, the sealed absorption box 11 is also connected to the rear absorption tank 16 through the absorption box exhaust pipe 6, an exhaust pump 15 is arranged on the absorption box exhaust pipe 6, and an activated carbon absorption box 17 is arranged inside the rear absorption tank 16.

[0021] The catalytic mesh 14 is made of platinum-titanium dioxide.

[0022] The catalytic nets 14 are arranged vertically, and the intervals between the catalytic nets 14 are 2-3 cm.

[0023] The inner surface of the sealed absorption box 11 is a mirror structure.

[0024] An exhaust pipe 6 is provided at the rear end of the activated carbon absorption box 17 to be connected to the air intake pipe 2 .

[0025] The sealed absorption box 11 can be connected to a plurality of plate placement boxes 1 .

[0026] The present medium-density fiberboard formaldehyde absorption device 7 improves the existing technology which still uses an absorption tower for treatment during actual use. The absorption effect of formaldehyde emitted by low-concentration glue is general, and the construction and use costs are high. During use, the board placement box 1 can be directly set up on the assembly line for negative pressure setting, or the board placement box 1 can be directly replaced by a separate sealed placement room. The precipitation of formaldehyde is promoted by blowing, and then the treatment efficiency can reach 96-97% through photocatalytic degradation. The remaining part is absorbed by activated carbon, and the overall absorption efficiency can reach more than 99%. At the same time, the use of activated carbon can be greatly reduced, and the amount of solid waste generated can be reduced. The board placement box 1 can be rebuilt on an existing factory building or production line. The formaldehyde absorption device 7 is small in size, and the construction and use costs are low, which can effectively improve economic benefits.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A medium fiberboard formaldehyde absorption device, characterized by: Its structure includes a plate placement box, an air intake pipe, an inner fabric air pipe, a fan, a plate bracket, an exhaust pipe, and a formaldehyde absorption device. The left side of the plate placement box is connected to the air intake pipe, the air intake pipe is connected to the inner fabric air pipe, a fan is arranged on the right side of the inner fabric air pipe, a plate bracket is arranged on the right side of the fan, and the right end of the plate placement box is connected to the formaldehyde absorption device through the exhaust pipe. The formaldehyde absorption device includes a sealed absorption box, a catalytic lamp bracket, a photocatalytic lamp, a catalytic net, an exhaust pump, a rear absorption tank, and an activated carbon absorption box. A catalytic lamp bracket is arranged inside the sealed absorption box, a plurality of photocatalytic lamps are arranged on the catalytic lamp bracket, a catalytic net is arranged below the photocatalytic lamp, the photocatalytic lamps and the catalytic net are arranged in groups, 2-5 groups of this structure are arranged in the sealed absorption box, the sealed absorption box is also connected to the rear absorption tank through an absorption box exhaust pipe, an exhaust pump is arranged on the absorption box exhaust pipe, and an activated carbon absorption box is arranged inside the rear absorption tank.

2. The formaldehyde absorption device for medium fiberboard according to claim 1, characterized in that: The catalytic mesh is made of platinum-titanium dioxide.

3. The formaldehyde absorption device for medium fiberboard according to claim 1, characterized in that: The catalytic nets are arranged vertically, and the intervals between the catalytic nets are 2-3 cm.

4. The formaldehyde absorption device for medium fiberboard according to claim 1, characterized in that: The inner surface of the sealed absorption box is arranged in a mirror structure.

5. The formaldehyde absorption device for medium fiberboard according to claim 1, characterized in that: An exhaust pipe is arranged at the rear end of the activated carbon absorption box and is connected with an air inlet pipe.

6. The formaldehyde absorption device for medium fiberboard according to claim 1, characterized in that: The sealed absorption box can be connected to a plurality of plate placement boxes.

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