CN210454021U

CN210454021U - A needled felt for blast furnace gas for steel production

Info

Publication number: CN210454021U
Application number: CN201921065099.8U
Authority: CN
Inventors: 王向阳
Original assignee: Jiangsu Hanting Environmental Protection Filter Material Co ltd
Current assignee: Jiangsu Hanting Environmental Protection Filter Material Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-05
Anticipated expiration: 2029-07-09

Abstract

The utility model provides a needled felt for blast furnace gas used for steel production, in particular to the field of knitted felt, which comprises a base cloth layer with the thickness of 1 mm, wherein a nylon cloth layer with the thickness of 1.5 mm and a polypropylene cloth layer with the thickness of 1.5 mm are respectively arranged on two sides of the base cloth layer; glass fiber cloth layers with the thickness of 1 mm are arranged on the outer sides of the nylon cloth layer and the polypropylene cloth layer respectively; and the two ends of the knitted felt are connected to form a hollow cylinder, and the nylon cloth layer, the polypropylene cloth layer, the glass fiber cloth layer and the base cloth layer are bonded through rubber resin. The utility model discloses not only filtering quality is excellent, and intensity is high.

Description

A needled felt for blast furnace gas for steel production

Technical Field

The utility model belongs to the field of knitting felt, concretely relates to a blast furnace gas is with acupuncture felt for steel production.

Background

Blast furnace gas is an important secondary energy source in an iron and steel smelting system and accounts for 10 to 20 percent of the total energy consumption of an iron and steel combined enterprise. At present, blast furnace gas becomes the main fuel gas of hot blast stoves, coke ovens, steel rolling heating furnaces (co-combustion with high-calorific-value dyes) and medium-low pressure blast furnaces. Meanwhile, because the dust content in the blast furnace gas is large, the blast furnace gas is not easy to directly enter a gas pipe network for use, and the dust content of the blast furnace gas is reduced after the blast furnace gas is purified and dedusted by the process, so that the normal use of the associated equipment can be ensured;

at present, a wet purification process is generally adopted in the treatment of blast furnace gas, mainly a gas washing tower and a venturi wet dust collector are used for purification, but compared with a pulse bag type dust collector for blast furnace gas dry purification, the defects of complex system flow, high investment cost, high water consumption and energy loss and serious secondary pollution still exist; the knitted felt is an important raw material of a filter bag in a bag type filter material, the existing knitted felt still has various defects and needs to be further optimized and improved.

In view of the above disadvantages, there is a need for a needled felt for blast furnace gas used in steel production, which has excellent filtration performance and high strength.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a needled felt for blast furnace gas for steel production, not only filtering quality is excellent, and intensity is high.

The utility model provides a following technical scheme:

a needled felt for blast furnace gas used for steel production comprises a base cloth layer with the thickness of 1 mm, wherein a nylon cloth layer with the thickness of 1.5 mm and a polypropylene cloth layer with the thickness of 1.5 mm are respectively arranged on two sides of the base cloth layer; glass fiber cloth layers with the thickness of 1 mm are arranged on the outer sides of the nylon cloth layer and the polypropylene cloth layer respectively; and the two ends of the knitted felt are connected to form a hollow cylinder, and the nylon cloth layer, the polypropylene cloth layer, the glass fiber cloth layer and the base cloth layer are bonded through rubber resin.

Preferably, knitting felt one end is equipped with the connection cloth, the connection cloth is concave type, connection cloth one end and knitting felt one end meet, knitting felt other end embedding in the connection cloth, the connection cloth with the tip of knitting felt meets through the magic subsides.

Preferably, magic tapes are arranged on the inner side of the connecting cloth and on two sides of the end part of the knitted felt.

Preferably, the knitted felt is provided with a plurality of filter cylinders along the circumferential direction, filter materials are arranged in the filter cylinders, filter sleeves are arranged on the peripheries of the filter cylinders, and the structures of the filter sleeves are the same as those of the knitted felt; the two ends of the filter sleeve are connected with the knitted felt.

Preferably, the filter material is active carbon, anthracite, a shell filter material, an active alumina ball, a zeolite filter material or a volcanic filter material.

Preferably, the filter cartridge and the filter sleeve are of a separated structure; the filter cylinder is a hollow main body, a plurality of through holes are formed in the periphery of the filter cylinder, and sealing plugs are arranged at the upper end and the lower end of the filter cylinder.

Preferably, the closing plug is of a convex structure, the end with the smaller diameter of the closing plug is embedded into the filter cylinder, and the end with the larger diameter of the closing plug is the same as the diameter of the filter cylinder and is connected with the closing plug and the filter cylinder through threads.

The utility model has the advantages that:

the utility model discloses a polyamide fibre cloth layer, polypropylene fibre cloth layer and strain a section of thick bamboo and improved the filtration efficiency of knitting felt, and through changing different filter materials, can realize different filter actions, and then do benefit to and improve the filter effect, can improve knitting felt's intensity greatly through the glass fiber cloth layer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a view of the structure of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a view of the cartridge configuration;

labeled as: 1. a base cloth layer; 2. a nylon cloth layer; 3. a polypropylene cloth layer; 4. a glass fiber cloth layer; 5. knitting a felt; 6. connecting cloth; 7. a filter sleeve; 8. a filter cartridge; 9. and (6) closing the plug.

Detailed Description

As shown in fig. 1 to 3, a needle felt for blast furnace gas used for steel production comprises a base cloth layer 1 with a thickness of 1 mm, and nylon cloth layers 2 with a thickness of 1.5 mm and polypropylene cloth layers 3 with a thickness of 1.5 mm are respectively arranged on two sides of the base cloth layer 1; the outer sides of the nylon cloth layer 2 and the polypropylene cloth layer 3 are respectively provided with a glass fiber cloth layer 4 with the thickness of 1 mm, the thickness just meets the filtering effect, and the excessive waste is avoided; the two ends of the knitted felt 5 are connected to form a hollow cylinder, and the nylon cloth layer 2, the polypropylene cloth layer 3, the glass fiber cloth layer 4 and the base cloth layer 1 are bonded by rubber resin, so that the rubber resin is firmly bonded; the filtering efficiency of the knitted felt is improved through the nylon cloth layer 2 and the polypropylene cloth layer 3, and the strength of the knitted felt can be greatly improved through the glass fiber cloth layer 4; one end of the knitted felt 5 is provided with a connecting cloth 6, the connecting cloth 6 is concave, one end of the connecting cloth 6 is connected with one end of the knitted felt 5, the other end of the knitted felt 5 is embedded into the connecting cloth 6, and the connecting cloth 6 is connected with the end part of the knitted felt 5 through a magic tape; the connection firmness and the sealing performance are ensured through the concave structure of the connecting cloth 6, and the magic tape is not only convenient for connection and disassembly, but also firm; the inner sides of the connecting cloth 6 and the two sides of the end part of the knitted felt 5 are both provided with magic tapes, and the two sides are connected, so that the firmness of connection can be further ensured

The knitting felt 5 is provided with a plurality of filter cylinders 8 along the circumferential direction, filter materials are arranged in the filter cylinders 8, filter sleeves 7 are arranged on the peripheries of the filter cylinders 8, and the structures of the filter sleeves 7 are the same as those of the knitting felt 5; the two ends of the filter sleeve 7 are connected with the knitted felt 5, the filter cartridge 8 is inserted into the filter sleeve 7, the filter cartridge 8 improves the filtering efficiency of the knitted felt, and different filtering effects can be realized by replacing different filtering materials, so that the filtering effect is improved; the filter material is active carbon, anthracite, a shell filter material, active alumina balls, a zeolite filter material or a volcanic filter material; the filter cartridge 8 and the filter sleeve 7 are of a separated structure, so that the filter cartridge 8 can be conveniently replaced; the filter cylinder 8 is a hollow main body, a plurality of through holes are formed in the periphery of the filter cylinder 8, the upper end and the lower end of the filter cylinder 8 are provided with sealing plugs 9, and the sealing plugs 9 prevent filter materials from spilling; the closing plug 9 is of a convex structure, one end of the closing plug 9 with a smaller diameter is embedded into the filter cylinder 8, the end of the closing plug 9 with a larger diameter has the same diameter as the filter cylinder 8 and is connected with the closing plug 9 and the filter cylinder 8 through threads, so that the connection is more attractive and firm;

the utility model discloses a working method:

as shown in fig. 1 to 3, the filtering efficiency of the knitted felt is improved by the nylon cloth layer 2 and the polypropylene cloth layer 3, the filtering cartridge 8 is inserted into the filtering sleeve 7, the filtering efficiency of the knitted felt is improved by the filtering cartridge 8, and different filtering effects can be realized by replacing different filtering materials, thereby being beneficial to improving the filtering effect; the filter material is active carbon, anthracite, a shell filter material, active alumina balls, a zeolite filter material or a volcanic filter material; the strength of the knitted felt can be greatly improved through the glass fiber cloth layer 4; the connection firmness and the sealing performance are ensured through the concave structure of the connection cloth 6, the magic tape is not only convenient for connection and disassembly, but also firm

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A kind of needle felt used for blast furnace gas of steel production, characterized by that: the nylon cloth comprises a base cloth layer with the thickness of 1 mm, wherein a nylon cloth layer with the thickness of 1.5 mm and a polypropylene cloth layer with the thickness of 1.5 mm are respectively arranged on two sides of the base cloth layer; glass fiber cloth layers with the thickness of 1 mm are arranged on the outer sides of the nylon cloth layer and the polypropylene cloth layer respectively; and the two ends of the knitted felt are connected to form a hollow cylinder, and the nylon cloth layer, the polypropylene cloth layer, the glass fiber cloth layer and the base cloth layer are bonded through rubber resin.

2. The needle felt for blast furnace gas for steel production according to claim 1, characterized in that: knitting felt one end is equipped with the connection cloth, the connection cloth is the concave type, connection cloth one end meets with knitting felt one end, knitting felt other end embedding in the connection cloth, the connection cloth with knitting felt's tip passes through the magic and pastes and meet.

3. The needle felt for blast furnace gas used for steel production according to claim 2, characterized in that: the connecting cloth is inboard, and the tip both sides of knitting felt all are equipped with the magic subsides.

4. The needle felt for blast furnace gas used for steel production according to claim 3, characterized in that: the knitted felt is provided with a plurality of filter cylinders along the circumferential direction, filter materials are arranged in the filter cylinders, filter sleeves are arranged on the peripheries of the filter cylinders, and the structures of the filter sleeves are the same as those of the knitted felt; the two ends of the filter sleeve are connected with the knitted felt.

5. The needle felt for blast furnace gas used for steel production according to claim 4, characterized in that: the filter material is active carbon, anthracite, nutshell filter material, active alumina ball, zeolite filter material or volcanic filter material.

6. The needle felt for blast furnace gas used for steel production according to claim 5, characterized in that: the filter cartridge and the filter sleeve are of a separated structure; the filter cylinder is a hollow main body, a plurality of through holes are formed in the periphery of the filter cylinder, and sealing plugs are arranged at the upper end and the lower end of the filter cylinder.

7. The needle felt for blast furnace gas used for steel production according to claim 6, characterized in that: the sealing plug is of a convex structure, one end with the smaller diameter of the sealing plug is embedded into the filter cylinder, and the end with the larger diameter of the sealing plug is the same as the diameter of the filter cylinder and is connected with the sealing plug and the filter cylinder through threads.