Antibacterial, dedusting and deodorizing integrated pleated filter material for breeding house

Abstract

The utility model aims to provide the antibacterial, dust-removing and deodorizing integrated wrinkled filter material for the breeding house, so that the antibacterial, dust-removing and deodorizing functions are integrated, the effect is lasting, the antibacterial, dust-removing and deodorizing integrated wrinkled filter material can be directly applied to an exhaust fan of the breeding house, and the occupied area is small. The filter material is a non-woven filter material and comprises a waterproof coating, a dust filtering and deodorizing layer and a nano-antibacterial fiber membrane layer which are sequentially stacked in the airflow direction; the waterproof coating is a polytetrafluoroethylene coating; fibers of the dust filtering and deodorizing layer are polypropylene fibers or polyester fibers, the fineness of the fibers is 1.5-3.5 dtex, the length of the fibers is 50-80 mm, and the dust filtering and deodorizing layer is loaded with a deodorant; the matrix of the nano antibacterial fiber membrane layer is polylactic acid resin and is loaded with an Ag ZIF-8 nano antibacterial agent.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter materials, in particular to an antibacterial, dust removal and deodorization integrated corrugated filter material for breeding houses. Background Technique

[0002] With the large-scale development of the livestock and poultry breeding industry, the problem of atmospheric environmental pollution generated during the breeding process has also attracted people's attention. The main atmospheric pollutants in breeding houses are suspended particulate matter (PM10 and PM2.5), as well as some bacteria and microorganisms, etc., and there is an obvious peculiar smell. Dust reduction and emission reduction are effective means to ensure the health of humans and livestock inside and outside the house and protect the air quality of the surrounding environment.

[0003] In the deodorization system for breeding farms in Patent CN218794805U, a method combining a deodorization water curtain (filter block deodorization wet curtain net) and water spraying is used for dust removal and deodorization. Dust falls into the circulating water tank under the action of water spraying and washing, and odor gases such as ammonia and hydrogen sulfide combine with water molecules to achieve the deodorization effect. This scheme requires a certain space in the breeding house to build a deodorization room, and there are problems such as waste of water resources and easy growth of bacteria.

[0004] Patent CN209501118U sets an exhaust air deodorization device connected by a funnel-shaped air inlet, a suction fan and a deodorization unit on the wall of the breeding house. A dust-proof filter screen is arranged at the front end of the air inlet. The deodorization unit includes a liquid storage tank filled with a deodorant, realizing dust removal and deodorization while ventilating. However, the dust-proof filter screen of this device can only filter some large-particle impurities, and has a poor removal effect on PM2.5 and bacteria.

[0005] Patent CN219019863U uses a fan, a dust removal filter plate, an exhaust fan and an activated carbon adsorption plate to cooperate for dust removal and adsorption of harmful bacteria. However, activated carbon can only adsorb and cannot decompose. After adsorption saturation, it must be replaced in time, otherwise it may release the adsorbed harmful gases. Content of the Utility Model

[0006] The purpose of the utility model is to provide an antibacterial, dust removal and deodorization integrated corrugated filter material for breeding houses, solve the problems existing in the prior art, realize the integration of functions such as antibacterial, dust removal and deodorization, with a lasting effect, and can be directly applied to the exhaust fan of the breeding house without occupying space.

[0007] To achieve the above object, the solution of the utility model is:

[0008] An antibacterial, dust-removing and deodorizing integrated corrugated filter material for a breeding house, the filter material being a non-woven filter material, comprising a waterproof coating, a dust-removing and deodorizing layer and a nano-antibacterial fiber membrane layer laminated in sequence along the air flow direction; the waterproof coating is a polytetrafluoroethylene coating; the fibers of the dust-removing and deodorizing layer are made of polypropylene fibers or polyester fibers, with a fiber fineness of 1.5 - 3.5 dtex and a fiber length of 50 - 80 mm, and the dust-removing and deodorizing layer is loaded with a deodorant; the matrix of the nano-antibacterial fiber membrane layer is polylactic acid resin and is loaded with Ag@ZIF-8 nano-antibacterial agent.

[0009] The deodorant is one of activated carbon powder, fine zeolite powder and attapulgite clay.

[0010] The waterproof coating is obtained by coating a polytetrafluoroethylene emulsion on the dust-facing surface of the dust-removing and deodorizing layer by means of a foam coating technique.

[0011] The nano-antibacterial fiber membrane layer is prepared by an electrospinning technique and is adhered to the clean air surface of the dust-removing and deodorizing layer.

[0012] After adopting the above technical solution, the utility model has the following technical effects:

[0013] The filter material of the present invention can be applied to the dust-removing device of the exhaust fan in the breeding house, without occupying the ground space inside the breeding house; the corrugated filter material not only has a large filtration area, but also has a better filtration effect on fine dust; the waterproof coating of polytetrafluoroethylene can make the filter material not easily get damp, prevent water vapor from entering the filter material, keep the inside of the filter material dry, and extend the service life of the filter material; the dust-removing and deodorizing layer is a non-woven fiber felt loaded with a deodorant, with small pore size and high porosity, having a good removal effect on fine dust such as PM2.5 while ensuring normal ventilation effect, and at the same time the deodorant can effectively adsorb odors, so that the breeding house does not need to be equipped with a separate deodorizing device; the nano-antibacterial fiber membrane layer enables the filter material to not only antibacterial and sterilize, but also electrostatically adsorb fine dust particles, further preventing the spread of dust and bacteria and microorganisms to the external environment, and the high-humidity environment does not affect its adsorption efficiency; after the filter material is used for a period of time, it can be removed and replaced, which is convenient to operate and reduces the equipment maintenance cost of the dust-removing device. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a specific embodiment of the utility model;

[0015] Figure 2 It is a schematic use diagram of a specific embodiment of the utility model;

[0016] Explanation of the reference numerals in the drawings:

[0017] 1 - waterproof coating; 2 - dust-removing and deodorizing layer; 3 - nano-antibacterial fiber membrane layer; 4 - exhaust fan; 5 - dust-removing device. Detailed implementation mode

[0018] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0019] Refer to Figure 1 and Figure 2 As shown, the present invention discloses an antibacterial, dust-removing and deodorizing integrated corrugated filter material for a breeding house. The filter material is a non-woven filter material, which includes a waterproof coating 1, a dust-removing and deodorizing layer 2 and a nano-antibacterial fiber membrane layer 3 that are sequentially laminated along the air flow direction;

[0020] The waterproof coating 1 is a polytetrafluoroethylene coating, which has strong hydrophobicity;

[0021] The fibers of the dust-removing and deodorizing layer 2 are made of polypropylene fibers or polyester fibers, the fiber fineness is 1.5-3.5 dtex, the fiber length is 50-80 mm, and the dust-removing and deodorizing layer 2 is loaded with a deodorant;

[0022] The matrix of the nano-antibacterial fiber membrane layer 3 is polylactic acid resin, and it is loaded with self-charged Ag@ZIF-8 nano-antibacterial agent.

[0023] Through the above scheme, the filter material of the present invention can be applied to the dust removal device 5 of the exhaust fan 4 in the breeding house (see Figure 2 ), without occupying the ground space in the breeding house; the corrugated filter material not only has a large filtration area, but also has a better filtration effect on fine dust; the waterproof coating 1 of polytetrafluoroethylene can make the filter material not easily get wet, avoid water vapor from entering the filter material, keep the inside of the filter material dry, and extend the service life of the filter material; the dust-removing and deodorizing layer 2 is a non-woven fiber felt loaded with a deodorant, with small pore size and high porosity, which has a good removal effect on fine dust such as PM2.5 while ensuring normal ventilation effect, and at the same time the deodorant can effectively adsorb odors, and the breeding house does not need to be equipped with a separate deodorizing device; the nano-antibacterial fiber membrane layer 3 enables the filter material to not only antibacterial and sterilize, but also electrostatically adsorb small dust particles, further preventing dust and bacteria and microorganisms from spreading to the outside environment, and the high humidity environment does not affect its adsorption efficiency; after the filter material is used for a period of time, it can be removed and replaced, which is convenient to operate and reduces the equipment maintenance cost of the dust removal device 5.

[0024] The following shows specific embodiments of the present invention.

[0025] The gram weight of the above filter material finished product is 350 g / m 2 , the thickness is 2.0 mm, the air permeability is 220 L / dm 2 / min, and the transverse and longitudinal breaking strengths are both greater than 500 N / 5 cm.

[0026] The above waterproof coating 1 is prepared by coating a polytetrafluoroethylene emulsion on the dust-facing surface of the dust-filtering and deodorizing layer 2 using a foam coating technique.

[0027] The above nano-antibacterial fiber membrane layer 3 is prepared by an electrospinning technique and adhered to the clean-air surface of the dust-filtering and deodorizing layer 2.

[0028] The above deodorant can be selected from one of activated carbon powder, fine zeolite powder, and attapulgite clay.

[0029] The preparation method of the present utility model is as follows:

[0030] (1) Preferably, polypropylene fibers or polyester fibers are used to prepare a fiber felt with a thickness of about 2.0 - 3.0 mm and a grammage of 200 - 400 g / m 2 ;

[0031] (2) After the needled fiber felt is subjected to surface finishing processes such as shaping, singeing, and calendering, the deodorant is loaded onto the needled fiber felt using an impregnation process to obtain the dust-filtering and deodorizing layer 2. At this time, the grammage of the dust-filtering and deodorizing layer 2 is 230 - 450 g / m 2 ;

[0032] (3) On the dust-facing surface of the dust-filtering and deodorizing layer 2, a foam coating technique is used to coat a layer of polytetrafluoroethylene emulsion with waterproof properties (i.e., obtaining the waterproof coating 1);

[0033] (4) A nano-antibacterial fiber membrane containing a nano-antibacterial agent is prepared by an electrospinning technique and adhered to the clean-air surface of the dust-filtering and deodorizing layer 2 (i.e., obtaining the nano-antibacterial fiber membrane layer 3).

[0034] The above embodiments and diagrams do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. An antibacterial, dust-removing and deodorizing integrated pleated filter material for breeding houses, characterized in that: The filter material is a non-woven filter material, comprising a waterproof coating, a dust filtering and deodorizing layer, and a nano antibacterial fiber membrane layer stacked in sequence along the airflow direction; The waterproof coating is a polytetrafluoroethylene coating; The fibers of the dust filtering and deodorizing layer are polypropylene fibers or polyester fibers, the fiber fineness is 1.5 to 3.5 dtex, the fiber length is 50 to 80 mm, and the dust filtering and deodorizing layer is loaded with a deodorant; The matrix of the nano antibacterial fiber membrane layer is polylactic acid resin and is loaded with Ag@ZIF-8 nano antibacterial agent.

2. The antibacterial, dust-removing and deodorizing integrated pleated filter material for breeding houses according to claim 1, characterized in that: The deodorant is one of activated carbon powder, fine zeolite powder and attapulgite clay.

3. The antibacterial, dust-removing and deodorizing integrated pleated filter material for breeding houses according to claim 1, characterized in that: The waterproof coating is prepared by coating the dust-facing surface of the dust filtering and deodorizing layer with polytetrafluoroethylene emulsion using a foam coating technology.

4. The antibacterial, dust-removing and deodorizing integrated pleated filter material for breeding houses according to claim 1, characterized in that: The nano antibacterial fiber membrane layer is made by adopting electrostatic spinning technology and adhered to the clean air surface of the dust filtering and deodorizing layer.

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