High-temperature needled felt filter material

Abstract

The utility model relates to the technical field of filter materials, and provides a high-temperature needled felt filter material which comprises a base layer, a reinforcing layer is fixed on the outer side of the base layer, a protective layer is fixed on the outer side of the reinforcing layer, tightening structures are uniformly arranged on the outer side of the protective layer, and each tightening structure comprises a connecting block, a preformed hole and a binding rope, and the connecting blocks are evenly fixed to the outer side of the protective layer, preformed holes are formed in the connecting blocks, binding ropes penetrate through the preformed holes, and a heat-resisting structure is fixed to the inner wall of the base layer. According to the high-temperature needled felt filter material, the binding structure is arranged, the binding rope is wound on the outer side of the protective layer through the preformed hole, and after the base layer is installed, the binding rope is knotted to bind the base layer, so that the stability of the base layer during installation can be improved, the device has a reinforced installation function, and the stability of the high-temperature needled felt filter material during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter materials, in particular to a high-temperature needle-punched felt filter material. Background Art

[0002] In chemical, petroleum, metallurgy, coal-fired power plants, steel industry, cement chemical industry and other industrial production, high-temperature dust-laden gases are generated, such as raw gas for chemical synthesis, furnace gas, reactor charring and high-temperature flue gas generated by coal combustion. If these high-temperature dust-laden gases are directly discharged without effective treatment, they will cause serious pollution to the environment. Traditional filter bags cannot withstand high-temperature dust and have low filtering effects. Therefore, it is necessary to design a high-temperature needle-punched felt filter material.

[0003] To this end, the patent with announcement number CN220878085U discloses a high-temperature needle-punched felt filter material, including a base layer, a high-temperature resistant component is provided inside the base layer, and a protective component is provided on the outside of the base layer. The high-temperature needle-punched felt filter material has the materials in the high-temperature resistant component and the protective component bonded to the inside and outside of the base layer respectively. After the coating on the outside of the high-temperature needle-punched felt filter material is air-dried, the outside of the high-temperature needle-punched felt filter material is nano-punched by an external nano-punching machine to ensure the filtering performance of the high-temperature needle-punched felt filter material. The glass fiber cloth composition of the base layer improves the overall compressive performance of the filter bag. Through the strength layer, flame retardant layer and fireproof layer, the high-temperature needle-punched felt filter material has high temperature resistance, corrosion resistance, dimensional stability, extremely small elongation and shrinkage, high strength, and excellent flame retardant effect. It also has the characteristics of waterproof, heat insulation, moisture-proof, flame retardant and acid and alkali resistance, solving the problem of lack of high-temperature resistant materials and reduced practicality during use.

[0004] The high-temperature needle-punched felt filter material mentioned above is not convenient for stably fixing the filter bag on the dust collecting frame during installation, and the filter bag is easy to fall off downwards. Therefore, it is necessary to design a high-temperature needle-punched felt filter material that can be easily fixed. Utility Model Content

[0005] The utility model aims to provide a high-temperature needle-punched felt filter material to solve the defects of the existing high-temperature needle-punched felt filter material in that it is inconvenient to stably fix the filter bag on the dust removal frame during installation and the filter bag is easy to fall off downwards.

[0006] In order to solve the above technical problems, the present utility model provides the following technical solutions: a high-temperature needle-punched felt filter material, comprising a base layer;

[0007] A reinforcement layer is fixed on the outer side of the base layer, and a protective layer is fixed on the outer side of the reinforcement layer;

[0008] The outer side of the protective layer is evenly provided with a tightening structure, and the tightening structure includes a connecting block, a reserved hole and a tie rope. The connecting block is evenly fixed to the outer side of the protective layer, and the interior of the connecting block is provided with a reserved hole, and the interior of the reserved hole is penetrated by a tie rope;

[0009] A heat-resistant structure is fixed on the inner wall of the base layer.

[0010] Furthermore, the reinforcement layer is actually a metal wire layer, and the protective layer is a coating layer.

[0011] Furthermore, the heat-resistant structure includes an adhesive layer, a filter material layer and a filtration layer, and the adhesive layer is fixed on the inner wall of the base layer.

[0012] Furthermore, a filter material layer is fixed on the inner wall of the adhesive layer, and a filtration layer is fixed on the inner wall of the filter material layer.

[0013] Furthermore, the filter material layer is a PETT fiber layer, and the filter layer is a basalt fiber layer.

[0014] Furthermore, the connection blocks are distributed at equal intervals on the outside of the protective layer.

[0015] Furthermore, the connection blocks are symmetrically distributed at both ends of the protective layer.

[0016] The utility model provides a high-temperature needle-punched felt filter material, which has the following advantages:

[0017] By providing a tightening structure, the rope is wrapped around the outside of the protective layer through the reserved hole. After the base layer is installed, the rope is knotted to tighten the base layer, which can increase the stability of the base layer during installation, realize the function of reinforcing the installation, and improve the stability of the high-temperature needle-punched felt filter material during use;

[0018] By providing a heat-resistant structure, the filter layer is widely used in high-temperature needle-punched felt filter materials due to its excellent high-temperature resistance, corrosion resistance and chemical stability. It can effectively filter dust and particles in high-temperature flue gas. The filter layer has excellent properties such as high strength, high modulus, high-temperature resistance and corrosion resistance, which improves the overall performance of the filter material, realizes the functions of high-temperature resistance and easy filtering of the device, and improves the working efficiency of the high-temperature needle-punched felt filter material when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional three-dimensional structure of the utility model;

[0022] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model in a top view.

[0024] Explanation of the reference numerals in the figure: 1. base layer; 2. reinforcement layer; 3. protective layer; 4. heat-resistant structure; 41. adhesive layer; 42. filter material layer; 43. filter layer; 5. tightening structure; 51. connecting block; 52. reserved hole; 53. rope. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The utility model provides a high-temperature needle-punched felt filter material, which includes a base layer 1.

[0027] Reference Figure 1-Figure 5 A reinforcing layer 2 is fixed to the outside of the base layer 1, and a protective layer 3 is fixed to the outside of the reinforcing layer 2. The reinforcing layer 2 is actually a metal wire layer, and the protective layer 3 is a coating layer. A tightening structure 5 is evenly arranged on the outside of the protective layer 3. The tightening structure 5 includes a connecting block 51, a reserved hole 52 and a binding rope 53. The connecting blocks 51 are evenly fixed to the outside of the protective layer 3, and the inside of the connecting blocks 51 are all provided with a reserved hole 52. The inside of the reserved hole 52 is penetrated by a binding rope 53. The connecting blocks 51 are evenly distributed on the outside of the protective layer 3, and the connecting blocks 51 are symmetrically distributed at both ends of the protective layer 3.

[0028] The tie rope 53 is wrapped around the outside of the protective layer 3 through the reserved hole 52. After the base layer 1 is installed, the tie rope 53 is knotted to tighten the base layer 1, which can increase the stability of the base layer 1 during installation.

[0029] Reference Figure 1-Figure 5 A heat-resistant structure 4 is fixed on the inner wall of the base layer 1. The heat-resistant structure 4 includes an adhesive layer 41, a filter material layer 42 and a filter layer 43. The adhesive layer 41 is fixed on the inner wall of the base layer 1. The filter material layer 42 is fixed on the inner wall of the adhesive layer 41. The filter layer 43 is fixed on the inner wall of the filter material layer 42. The filter material layer 42 is a PETT fiber layer, and the filter layer 43 is a basalt fiber layer.

[0030] The filter layer 42 is widely used in high-temperature needle-punched felt filter media due to its excellent high-temperature resistance, corrosion resistance, and chemical stability. It can effectively filter dust and particles in high-temperature flue gas. The filter layer 43 has excellent properties such as high strength, high modulus, high-temperature resistance, and corrosion resistance, thereby improving the overall performance of the filter media.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-temperature needle-punched felt filter material, comprising a base layer (1); Its characteristics are: A reinforcement layer (2) is fixed on the outer side of the base layer (1), and a protective layer (3) is fixed on the outer side of the reinforcement layer (2); The outer side of the protective layer (3) is uniformly provided with a tightening structure (5), the tightening structure (5) comprises a connecting block (51), a reserved hole (52) and a tie rope (53), the connecting block (51) is uniformly fixed to the outer side of the protective layer (3), the interior of the connecting block (51) is provided with a reserved hole (52), and the interior of the reserved hole (52) is penetrated by a tie rope (53); A heat-resistant structure (4) is fixed on the inner wall of the base layer (1).

2. The high-temperature needle-punched felt filter material according to claim 1, characterized in that: The reinforcing layer (2) is actually a metal wire layer, and the protective layer (3) is a coating layer.

3. The high-temperature needle-punched felt filter material according to claim 1, characterized in that: The heat-resistant structure (4) comprises an adhesive layer (41), a filter material layer (42) and a filter layer (43), wherein the adhesive layer (41) is fixed on the inner wall of the base layer (1).

4. The high-temperature needle-punched felt filter material according to claim 3, characterized in that: A filter material layer (42) is fixed on the inner wall of the adhesive layer (41), and a filter layer (43) is fixed on the inner wall of the filter material layer (42).

5. The high-temperature needle-punched felt filter material according to claim 3, characterized in that: The filter material layer (42) is a PETT fiber layer, and the filter layer (43) is a basalt fiber layer.

6. The high-temperature needle-punched felt filter material according to claim 1, characterized in that: The connecting blocks (51) are distributed at equal intervals on the outside of the protective layer (3).

7. The high-temperature needle-punched felt filter material according to claim 1, characterized in that: The connecting blocks (51) are symmetrically distributed at both ends of the protective layer (3).

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