Double-layer composite filter cloth bag

Abstract

The utility model relates to the technical field of filter cloth bags, and discloses a double-layer composite filter cloth bag which comprises a film covering layer, a composite layer is sleeved with the film covering layer, a glass fiber layer is sleeved with the composite layer, the interior of the glass fiber layer is in threaded connection with an A fixing ring through a connecting bolt, and the inner portion of the A fixing ring is in threaded connection with a B fixing ring through a connecting bolt. A reinforcing part is welded to the bottom face of the A fixing ring, a fine filtering layer is connected to the interior of the reinforcing part in a sleeved mode, an activated carbon cloth layer is connected to the interior of the fine filtering layer in a sleeved mode, the film covering layer is made of polytetrafluoroethylene, the composite layer comprises a polyester layer connected to the interior of the film covering layer in a sleeved mode, and a polypropylene layer is connected to the interior of the polyester layer in a sleeved mode. According to the double-layer composite filtering cloth bag, through the arrangement of the film covering layer, the fine filtering layer and the activated carbon cloth layer, dust adhesion is reduced through the polytetrafluoroethylene film covering layer, finer particles and particles are filtered through the nanofiber fine filtering layer and the activated carbon cloth layer, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cloth bags, in particular to a double-layer composite filter cloth bag. Background Art

[0002] Filter bags are a type of equipment used for gas or liquid filtration, usually used to remove particulate matter, dust, particles, droplets or other solid particles to protect equipment, maintain the environment and ensure product quality. Filter bags are an important part of industrial filtration systems and are widely used in various industries and applications.

[0003] A composite filter cloth is disclosed in publication number CN108043114A. Although the invention combines filter cloth and filter membrane to form a composite filter cloth, it can not only filter out dust particles with a diameter of less than 2 microns, but also enhance the strength of traditional filter cloth and filter membrane, so that it can be used for a long time in industrial dust removal equipment, has a long service life, good filtering and dust removal effect, and the filter bag is not easy to be blocked. It is suitable for various industrial dust collectors and can meet environmental protection standards with higher emission requirements.

[0004] However, the composite filter cloth has the following disadvantages: it is not easy to improve the structural strength of the filter cloth, and it is easy to deform and break after long-term use, which shortens its service life. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The technical problem solved by the utility model is to provide a double-layer composite filter cloth bag which is highly practical, can be easily operated and has a relatively simple structure, thereby solving the problem of inconvenience in improving the structural strength of the filter cloth raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a double-layer composite filter cloth bag, including a coating layer, a composite layer is sleeved inside the coating layer, a glass fiber layer is sleeved inside the composite layer, the interior of the glass fiber layer is threadedly connected to an A fixing ring via connecting bolts, a reinforcing component is welded to the bottom surface of the A fixing ring, the reinforcing component includes a metal mesh welded to the bottom surface of the A fixing ring, a B fixing ring is welded to the bottom of the metal mesh, a fine filter layer is sleeved inside the reinforcing component, and an activated carbon cloth layer is sleeved inside the fine filter layer.

[0009] Optionally, the coating layer is made of polytetrafluoroethylene.

[0010] Optionally, the composite layer includes a polyester layer sleeved on the inside of the coating layer, and a polypropylene layer is sleeved on the inside of the polyester layer.

[0011] Optionally, a gasket is threadedly connected to the surface of the connecting bolt, and a locking nut is threadedly connected to one end of the connecting bolt.

[0012] Optionally, the material of the fine filter layer is nanofiber.

[0013] (III) Beneficial effects

[0014] The utility model provides a double-layer composite filter bag, which has the following beneficial effects:

[0015] 1. The double-layer composite filter bag has a coating layer, a fine filter layer and an activated carbon cloth layer. The polytetrafluoroethylene coating layer reduces dust adhesion, and the nanofiber fine filter layer and the activated carbon cloth layer filter even finer particles and microparticles, thereby improving the filtering effect.

[0016] 2. The double-layer composite filter bag improves the overall strength of the filter bag by strengthening the setting of components and the metal wire mesh, avoiding deformation and rupture and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the composite layer structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the strengthening component of the utility model;

[0020] Figure 4 This is a schematic diagram of the fine filter layer structure of the utility model.

[0021] In the figure: 1. coating layer; 2. composite layer; 201. polyester layer; 202. polypropylene layer; 3. glass fiber layer; 4. connecting bolts; 5. A fixing ring; 6. reinforcing component; 601. metal wire mesh; 602. B fixing ring; 7. fine filter layer; 8. activated carbon cloth layer; 9. gasket; 10. locking nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4The utility model provides a technical solution: a double-layer composite filter bag, including a coating layer 1, a composite layer 2 is sleeved inside the coating layer 1, a glass fiber layer 3 is sleeved inside the composite layer 2, an A fixing ring 5 is threadedly connected to the inside of the glass fiber layer 3 through a connecting bolt 4, a reinforcing component 6 is welded to the bottom of the A fixing ring 5, the reinforcing component 6 includes a metal mesh 601 welded to the bottom of the A fixing ring 5, and a B fixing ring 602 is welded to the bottom of the metal mesh 601. Through the arrangement of the reinforcing component 6, the metal mesh 601 improves the overall strength of the filter bag, avoids deformation and rupture, and improves the service life. A fine filter layer 7 is sleeved inside the reinforcing component 6, and an activated carbon cloth layer 8 is sleeved inside the fine filter layer 7. Through the arrangement of the coating layer 1, the fine filter layer 7 and the activated carbon cloth layer 8, the polytetrafluoroethylene coating layer 1 reduces dust adhesion, and the nanofiber fine filter layer 7 and the activated carbon cloth layer 8 filter finer particles and microparticles, thereby improving the filtering effect.

[0024] The material of the coating layer 1 is polytetrafluoroethylene, and the coating layer 1 can reduce the adhesion of dust;

[0025] The composite layer 2 includes a polyester layer 201 sleeved inside the coating layer 1, and a polypropylene layer 202 is sleeved inside the polyester layer 201. The composite layer 2 plays a role of preliminary filtering.

[0026] The surface of the connecting bolt 4 is threadedly connected with a gasket 9, and one end of the connecting bolt 4 is threadedly connected with a locking nut 10, and the setting of the locking nut 10 plays a role in fixing the connecting bolt 4;

[0027] The material of the fine filter layer 7 is nanofiber, and the fine filter layer 7 can filter tiny particles.

[0028] In the utility model, the working steps of the device are as follows:

[0029] Step 1: The polytetrafluoroethylene coating layer 1 reduces dust adhesion, and the polyester layer 201 and the polypropylene layer 202 perform preliminary dust filtration;

[0030] Step 2: The nanofiber fine filter layer 7 and the activated carbon cloth layer 8 filter even finer particles and microparticles, thus improving the filtering effect;

[0031] The third step: The metal mesh 601 improves the overall strength of the filter bag, avoids deformation and rupture, and increases the service life.

[0032] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0033] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer composite filter bag, comprising a coating layer (1), characterized in that: The coating layer (1) is sleeved with a composite layer (2), the composite layer (2) is sleeved with a glass fiber layer (3), the glass fiber layer (3) is threadedly connected with an A fixing ring (5) via a connecting bolt (4), a reinforcing component (6) is welded to the bottom surface of the A fixing ring (5), the reinforcing component (6) comprises a metal mesh (601) welded to the bottom surface of the A fixing ring (5), a B fixing ring (602) is welded to the bottom of the metal mesh (601), a fine filter layer (7) is sleeved with the inside of the reinforcing component (6), and an activated carbon cloth layer (8) is sleeved with the inside of the fine filter layer (7).

2. A double-layer composite filter bag according to claim 1, characterized in that: The material of the coating layer (1) is polytetrafluoroethylene.

3. A double-layer composite filter bag according to claim 1, characterized in that: The composite layer (2) comprises a polyester layer (201) sleeved inside the coating layer (1), and a polypropylene layer (202) is sleeved inside the polyester layer (201).

4. A double-layer composite filter bag according to claim 1, characterized in that: A gasket (9) is threadedly connected to the surface of the connecting bolt (4), and a locking nut (10) is threadedly connected to one end of the connecting bolt (4).

5. The double-layer composite filter bag according to claim 1, characterized in that: The material of the fine filter layer (7) is nanofiber.

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