CN112246013A - Preparation method of low-cost metal filter material - Google Patents
Preparation method of low-cost metal filter material Download PDFInfo
- Publication number
- CN112246013A CN112246013A CN202011088180.5A CN202011088180A CN112246013A CN 112246013 A CN112246013 A CN 112246013A CN 202011088180 A CN202011088180 A CN 202011088180A CN 112246013 A CN112246013 A CN 112246013A
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- China
- Prior art keywords
- filter material
- cost
- metal filter
- low
- cotton net
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Abstract
The invention provides a preparation method of a low-cost metal filter material, which comprises the following steps: step one, selecting a metal bar; step two, manufacturing the metal bar into short fiber yarns by a turning method; compared with the traditional sheathed multi-core cluster drawing process, the turning method has the advantages that the metal bar is manufactured into the short fiber in one step, so that a plurality of drawing processes are reduced, a plurality of times of annealing are not needed, the time is saved, the labor intensity is reduced, the energy consumption is greatly reduced, and the cost is effectively reduced; thirdly, paving the short fiber into a cotton net required by the model; step four, continuously sintering the cotton net to obtain a metal filter material; the invention has low manufacturing cost, low production equipment cost and greatly improved production efficiency, leads more finished products to be produced in unit time, and further reduces the manufacturing cost of the product.
Description
Technical Field
The invention relates to a preparation method of a low-cost metal filter material.
Background
In flue gas dust removal, the bag type dust collector is widely applied due to the advantages of high dust removal efficiency, low investment cost, low emission concentration and the like, but the problems of bag pasting, bag breaking, bag burning and the like also exist, so that higher requirements are put forward on filter materials in the bag type dust collector; under the condition, the metal fiber felt filter bag is produced, and the porous dust removal filter material formed by micron-sized metal fibers has the characteristics of metal high temperature resistance and low wind resistance; the existing metal fiber felt filter bag is made of stainless steel fibers, stainless steel is made into stainless steel fiber wires through sheathing multi-core bundling and drawing, the process is multiple, multiple annealing is needed, the processing efficiency is low, and the energy consumption digestion is high; after the stainless steel fiber is manufactured, special vacuum sintering equipment is needed, the equipment is expensive, the yield of the equipment is low, the power consumption is high, the cost of the metal filter material is extremely high, and the market adoption rate is low.
Disclosure of Invention
The invention aims to overcome the defects and provide a preparation method of a low-cost metal filter material.
The invention adopts the following technical scheme:
a preparation method of a low-cost metal filter material comprises the following steps:
step one, selecting a metal bar.
Step two, manufacturing the metal bar into short fiber yarns by a turning method; compared with the traditional sheath multi-core cluster drawing process, the turning method has the advantages that the metal bar is manufactured into the short fiber in one step, a plurality of drawing processes are reduced, multiple times of annealing are not needed, the labor intensity is reduced while the time is saved, the energy consumption is greatly reduced, and the cost is effectively reduced.
And step three, paving the short fiber into a cotton net required by the model.
And step four, continuously sintering the cotton net to obtain the metal filter material.
Preferably, the metal bar is made of stainless steel, nickel, copper or carbon steel.
Preferably, the metal bar is made of carbon steel.
Preferably, the fourth step is: and continuously sintering the cotton net, and performing surface anticorrosion and antirust treatment to obtain the metal filter material.
Preferably, the surface anticorrosion and antirust treatment method comprises the following steps: adopting a steel piece surface blackening treatment method or a steel piece surface bluing treatment method; the performance of the metal filter material which is made of carbon steel and subjected to surface corrosion prevention and rust prevention treatment is almost the same as that of the metal filter material made of stainless steel; the cost of carbon steel raw materials is low, the price of stainless steel is several times of the price of carbon steel, the material change accounts for 10-20% of the cost, and the cost is further reduced.
Preferably, in the fourth step, the cotton net is placed into a continuous atmosphere protection furnace for continuous sintering; compared with the traditional vacuum sintering, the continuous atmosphere protection furnace is adopted for sintering, so that the equipment fund is greatly reduced, the sintering time of the manufacture is also reduced, and the cost is further reduced.
Preferably, in the fourth step, after the sintering of the cotton net is finished, the cotton net is discharged from the furnace and flattened and trimmed, so that the metal filter material is obtained.
The invention has the beneficial effects that: one, adopt the turning method, one step make into carbon steel fibre with the carbon steel stick, draw technology comparison in a bundle more than stainless steel fibre's canning multicore, reduced multichannel drawing process, also need not a lot of annealing, reduced intensity of labour when save time, still greatly reduced in the aspect of the energy consumption material, effectively reduced the cost of manufacture: secondly, a continuous atmosphere protection furnace is adopted for continuous sintering, so that compared with the traditional vacuum sintering equipment, the fund is greatly reduced, the sintering time of the manufacture is also reduced, and the manufacture cost is further reduced; the material change accounts for 10-20% of the cost, carbon steel is adopted to replace stainless steel and other materials, the cost can be further reduced, if corrosion resistance is required, surface treatment (blackening/bluing treatment of carbon steel) can be carried out, so that the corrosion resistance is achieved, the filtering and corrosion resistance effects equal to those of stainless steel and other materials are achieved, the blackening/bluing treatment cost of carbon steel is low, and the cost of the carbon steel after surface treatment is far lower than that of the stainless steel.
In conclusion, the metal filter material prepared by the invention has the advantages of low manufacturing cost, low production equipment cost and greatly improved production efficiency, so that more finished products can be produced in unit time, and the manufacturing cost of the product is further reduced.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the present invention is further described with reference to the following examples:
a preparation method of a low-cost metal filter material comprises the following steps:
step one, selecting a metal bar.
Step two, manufacturing the metal bar into short fiber yarns by a turning method; compared with the traditional sheath multi-core cluster drawing process, the turning method has the advantages that the metal bar is manufactured into the short fiber in one step, a plurality of drawing processes are reduced, multiple times of annealing are not needed, the labor intensity is reduced while the time is saved, the energy consumption is greatly reduced, and the cost is effectively reduced.
And step three, paving the short fiber into a cotton net required by the model.
And step four, continuously sintering the cotton net to obtain the metal filter material.
Preferably, the metal bar is made of stainless steel, nickel, copper or carbon steel.
Preferably, the metal bar is made of carbon steel.
Preferably, the fourth step is: and continuously sintering the cotton net, and performing surface anticorrosion and antirust treatment to obtain the metal filter material.
Preferably, the surface anticorrosion and antirust treatment method comprises the following steps: adopting a steel piece surface blackening treatment method or a steel piece surface bluing treatment method; the performance of the metal filter material which is made of carbon steel and subjected to surface corrosion prevention and rust prevention treatment is almost the same as that of the metal filter material made of stainless steel; the cost of carbon steel raw materials is low, the price of stainless steel is several times of the price of carbon steel, the material change accounts for 10-20% of the cost, and the cost is further reduced.
Preferably, in the fourth step, the cotton net is placed into a continuous atmosphere protection furnace for continuous sintering; compared with the traditional vacuum sintering, the continuous atmosphere protection furnace is adopted for sintering, so that the equipment fund is greatly reduced, the sintering time of the manufacture is also reduced, and the cost is further reduced.
Preferably, in the fourth step, after the sintering of the cotton net is finished, the cotton net is discharged from the furnace and flattened and trimmed, so that the metal filter material is obtained.
The carbon steel fiber wire is subjected to surface corrosion prevention and rust prevention treatment by a steel piece surface bluing treatment method or a steel piece surface blackening treatment method; the surface bluing treatment method of the steel part comprises the following steps: oxidizing the surface of the steel piece into compact and smooth ferroferric oxide by using a strong oxidant; the ferroferric oxide thin layer can effectively protect the interior of the steel part from being oxidized; the ferroferric oxide oxidized at high temperature (about 550 ℃) is sky blue, and the bluing treatment is called; the steel member surface blackening treatment method comprises the following steps: the ferroferric oxide oxidized at low temperature (about 130 ℃) is dark black, which is called blackening treatment; the strong oxidant can oxidize iron into compact and smooth ferroferric oxide; the strong oxidant is composed of sodium hydroxide, sodium nitrite and trisodium phosphate; when in bluing treatment, the melt liquid of the blue-green alloy is used for treating the workpiece; the blackening treatment is to treat the workpiece by using the aqueous solution of the blackening agent and the workpiece; the steel part surface bluing treatment or the steel part surface blackening treatment comprises the following steps: clamping → deoiling → washing → acid washing → oxidation → washing → saponification → hot water boiling → inspection; the processing steps are conventional means, and the invention is not further described.
The invention has the beneficial effects that: one, adopt the turning method, one step make into carbon steel fibre with the carbon steel stick, draw technology comparison in a bundle more than stainless steel fibre's canning multicore, reduced multichannel drawing process, also need not a lot of annealing, reduced intensity of labour when save time, still greatly reduced in the aspect of the energy consumption material, effectively reduced the cost of manufacture: secondly, a continuous atmosphere protection furnace is adopted for continuous sintering, so that compared with the traditional vacuum sintering equipment, the fund is greatly reduced, the sintering time of the manufacture is also reduced, and the manufacture cost is further reduced; the material change accounts for 10-20% of the cost, carbon steel is adopted to replace stainless steel and other materials, the cost can be further reduced, if corrosion resistance is required, surface treatment (blackening/bluing treatment of carbon steel) can be carried out, so that the corrosion resistance is achieved, the filtering and corrosion resistance effects equal to those of stainless steel and other materials are achieved, the blackening/bluing treatment cost of carbon steel is low, and the cost of the carbon steel after surface treatment is far lower than that of the stainless steel.
In conclusion, the metal filter material prepared by the invention has the advantages of low manufacturing cost, low production equipment cost and greatly improved production efficiency, so that more finished products can be produced in unit time, and the manufacturing cost of the product is further reduced.
The equipment (continuous atmosphere protective furnace) or the method (turning method, carbon steel blackening/bluing surface treatment method, continuous atmosphere protective furnace sintering method) adopted by the invention is a universal standard component or the equipment or the method known by the technicians in the field, and the method and the principle can be known by the technicians in the field or by the conventional experimental method.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (8)
1. The preparation method of the low-cost metal filter material is characterized by comprising the following steps of:
step one, selecting a metal bar;
step two, manufacturing the metal bar into short fiber yarns by a turning method;
thirdly, paving the short fiber into a cotton net required by the model;
and step four, continuously sintering the cotton net to obtain the metal filter material.
2. The method for preparing a low-cost metal filter material according to claim 1, wherein the method comprises the following steps:
the metal bar is made of stainless steel, nickel, copper or carbon steel.
3. The method for preparing a low-cost metal filter material according to claim 1, wherein the method comprises the following steps:
the metal bar is made of carbon steel.
4. The method of claim 3, wherein the method comprises the steps of:
the fourth step is that: and continuously sintering the cotton net, and performing surface anticorrosion and antirust treatment to obtain the metal filter material.
5. The method for preparing a low-cost metal filter material according to claim 4, wherein the method comprises the following steps:
the surface anticorrosion and antirust treatment method comprises the following steps: adopting a steel piece surface blackening treatment method or a steel piece surface bluing treatment method.
6. The method for preparing a low-cost metal filter material according to any one of claims 1 to 5, wherein:
and in the fourth step, the cotton net is placed into a continuous atmosphere protection furnace for continuous sintering.
7. The method for preparing a low-cost metal filter material according to claim 6, wherein the method comprises the following steps:
and in the fourth step, after the sintering of the cotton net is finished, flattening and trimming the cotton net after the cotton net is discharged from the furnace, and obtaining the metal filter material.
8. The method for preparing a low-cost metal filter material according to any one of claims 1 to 5, wherein:
and in the fourth step, after the sintering of the cotton net is finished, flattening and trimming the cotton net after the cotton net is discharged from the furnace, and obtaining the metal filter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088180.5A CN112246013A (en) | 2020-10-13 | 2020-10-13 | Preparation method of low-cost metal filter material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088180.5A CN112246013A (en) | 2020-10-13 | 2020-10-13 | Preparation method of low-cost metal filter material |
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| CN112246013A true CN112246013A (en) | 2021-01-22 |
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| CN202011088180.5A Pending CN112246013A (en) | 2020-10-13 | 2020-10-13 | Preparation method of low-cost metal filter material |
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| CN (1) | CN112246013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113088738A (en) * | 2021-03-25 | 2021-07-09 | 福建强纶新材料股份有限公司 | Metal fiber porous material and manufacturing method thereof |
Citations (10)
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|---|---|---|---|---|
| US5373615A (en) * | 1992-09-01 | 1994-12-20 | National Filtration | Filtration screen |
| CN1993202A (en) * | 2004-08-06 | 2007-07-04 | 排放技术有限公司 | Metal fibers, production method and application field thereof |
| CN102290582A (en) * | 2011-06-20 | 2011-12-21 | 华南理工大学 | Stainless steel fiber felt used for fuel battery bipolar plate and manufacturing method thereof |
| CN103611366A (en) * | 2013-12-01 | 2014-03-05 | 苏州百海金属有限公司 | Bacteriostatic copper fiber air filtering material and preparation method thereof |
| CN104436860A (en) * | 2014-12-31 | 2015-03-25 | 安徽省元琛环保科技有限公司 | Copper fiber filter screen for load photocatalyst and manufacturing method thereof |
| KR20150075238A (en) * | 2013-12-24 | 2015-07-03 | 재단법인 포항산업과학연구원 | Silica fiber fabric filters and manufacturing the same |
| CN105999857A (en) * | 2016-06-27 | 2016-10-12 | 含山县科宇环境工程有限公司 | Composite polytetrafluoroethylene fiber filter material and preparing method thereof |
| CN106237712A (en) * | 2016-08-31 | 2016-12-21 | 朱正秋 | A kind of nano metal fiber filter material |
| CN210420018U (en) * | 2019-08-16 | 2020-04-28 | 内蒙古博通科技有限公司 | Metal felt dust remover for converter steelmaking flue gas and converter steelmaking device |
| CN111643980A (en) * | 2020-06-22 | 2020-09-11 | 中电华创电力技术研究有限公司 | Low-cost metal filter bag for dust removal |
-
2020
- 2020-10-13 CN CN202011088180.5A patent/CN112246013A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| US5373615A (en) * | 1992-09-01 | 1994-12-20 | National Filtration | Filtration screen |
| CN1993202A (en) * | 2004-08-06 | 2007-07-04 | 排放技术有限公司 | Metal fibers, production method and application field thereof |
| CN102290582A (en) * | 2011-06-20 | 2011-12-21 | 华南理工大学 | Stainless steel fiber felt used for fuel battery bipolar plate and manufacturing method thereof |
| CN103611366A (en) * | 2013-12-01 | 2014-03-05 | 苏州百海金属有限公司 | Bacteriostatic copper fiber air filtering material and preparation method thereof |
| KR20150075238A (en) * | 2013-12-24 | 2015-07-03 | 재단법인 포항산업과학연구원 | Silica fiber fabric filters and manufacturing the same |
| CN104436860A (en) * | 2014-12-31 | 2015-03-25 | 安徽省元琛环保科技有限公司 | Copper fiber filter screen for load photocatalyst and manufacturing method thereof |
| CN105999857A (en) * | 2016-06-27 | 2016-10-12 | 含山县科宇环境工程有限公司 | Composite polytetrafluoroethylene fiber filter material and preparing method thereof |
| CN106237712A (en) * | 2016-08-31 | 2016-12-21 | 朱正秋 | A kind of nano metal fiber filter material |
| CN210420018U (en) * | 2019-08-16 | 2020-04-28 | 内蒙古博通科技有限公司 | Metal felt dust remover for converter steelmaking flue gas and converter steelmaking device |
| CN111643980A (en) * | 2020-06-22 | 2020-09-11 | 中电华创电力技术研究有限公司 | Low-cost metal filter bag for dust removal |
Non-Patent Citations (1)
| Title |
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| 翟光智: "《金属材料知识》", 30 April 1977, 湖北人民出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113088738A (en) * | 2021-03-25 | 2021-07-09 | 福建强纶新材料股份有限公司 | Metal fiber porous material and manufacturing method thereof |
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Application publication date: 20210122 |
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