CN102344188A - Permanent magnet composite filter screen grid - Google Patents
Permanent magnet composite filter screen grid Download PDFInfo
- Publication number
- CN102344188A CN102344188A CN2011101791567A CN201110179156A CN102344188A CN 102344188 A CN102344188 A CN 102344188A CN 2011101791567 A CN2011101791567 A CN 2011101791567A CN 201110179156 A CN201110179156 A CN 201110179156A CN 102344188 A CN102344188 A CN 102344188A
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- permanent magnet
- filter screen
- grid
- screen grid
- composite screen
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Abstract
The invention relates to a permanent magnet composite filter screen grid, comprising a support, a permanent magnet grid and a filter screen. The permanent magnet grid and the filter screen are parallelly arranged on the support. The permanent magnet grid is composed of permanent magnet filtering rods in parallel arrangement, and the permanent magnet filtering rods are at a distance of 5-15cm from each other. The filter screen is a metal mesh or nylon mesh. Each permanent magnet filtering rod includes a jacket pipe and segmented permanent magnet rods inside the pipe, and the permanent magnet rod sections are mutually isolated and connected by ordinary steel pipe sections. Two end faces of the jacket pipe are respectively sealed by sheet iron. When the permanent magnet composite filter screen grid is inserted into a sewage treatment channel, the filter screen plane and the grid plane are inclined to the ground at a 75-degree angle. The invention has the advantages of simple structure, easy manufacturing, low cost and high treatment efficiency.
Description
The present invention relates to sewage treatment area, be specifically related to a kind of permanent magnet composite screen grid that is used for WWT.
Background technology
Iron and steel manufacturing and metal material processing industry all must eliminate rust to the metallic surface; Derusting method commonly used has the water under high pressure jet stream rust cleaning method, the rust removal method that sandblasts, away rust by laser method, pickling degreasing rust removal method, alkali cleaning degreasing rust removal method, heat treated method, ultrasonic degreasing rust removal method etc.; No matter that a kind of surface derusting method all can produce impurity such as a large amount of iron rust, dust, grease, if do not handle the waste liquid that contains these impurity; Time one is long, and liquid can smelly, blackening.The method of traditional separation rust cleaning impurity has filtration method, the precipitator method, rotational flow separation method etc., and wherein the precipitator method are consuming time long, and the volume of settling tower is big, and the facility investment price is high; Filtration method need consume a large amount of filtering materials on the one hand; Because the iron rust particle is smaller; The easy blocking filtering material, the replacing frequency of filter material is high, remote effect production; Need equipment such as pipe laying, valve, unit, water pump or gas blower on the other hand, facility investment and overhead charges are bigger.
Grid is a device commonly used in the sewage treatment process, and its effect is that bigger solid matter is removed in interception, and the sump pump in the subsequent technique is shielded, and prevents that process pipeline from stopping up.The grid that is applied to water treatment in the market mainly contains the coarse rack and the fine fack of wire netting, uses grid can only filter out the bigger impurity of particle diameter merely, can't remove for the impurity that particle in the sewage of metal material processing industry is less.
Summary of the invention
To the problems referred to above of prior art, the applicant provides a kind of permanent magnet composite screen grid, permanent magnet grid and wire netting or nylon wire is combined filter the sewage that contains ferromegnetism impurity.The present invention is simple in structure, and is easy to manufacture, with low cost, and processing efficiency is high.
Technical scheme of the present invention is following:
Permanent magnet composite screen grid comprises support, filter screen and permanent magnet grid, and said permanent magnet grid and filter screen are set in parallel on the support, and wherein filter screen is arranged on the outside of support, and the permanent magnet grid is arranged on the inboard of filter screen; Said permanent magnet grid is installed on the support by permanent magnet filter stick employing mode side by side to be formed; Said permanent magnet filter stick comprises outer tube and is installed on sectional permanent magnet bar in the outer tube, is isolated and is connected by the ordinary steel pipeline section between each section permanent magnet bar, and two end faces of telescopic are sealed by iron plate respectively outside, and adopts the sealing-ring sealing.
Said filter screen is 20 ~ 80 purpose nylon wires.
Said filter screen is 20 ~ 80 purpose wire nettings.
Spacing between the permanent magnet filter stick of said permanent magnet grid is 5 ~ 15cm.
Said outer tube is a stainless-steel pipe.
The hop count of said sectional permanent magnet bar is 4 ~ 29 sections.
The length of said ordinary steel pipeline section is that 8 ~ 10mm, diameter are 6 ~ 30mm.
Said sectional permanent magnet bar is respectively Nd-Fe-B permanent magnet, and the length of said Nd-Fe-B permanent magnet is that 20 ~ 100mm, diameter are 6 ~ 30mm.
One of them iron plate Closed End of said permanent magnet filter stick outer tube is welded with suspension ring.
When permanent magnet composite screen grid was inserted the WWT passage, said filter screen plane and permanent magnet grille plane and effluent stream were to being inclined to 75 degree angles respectively.
Beneficial technical effects of the present invention is:
(1) permanent magnet filter stick employing stainless-steel pipe of the present invention is that outer tube has following reason: the one, because in process to metal-derusting; The pH value changes greatly in waste liquid or the dust; Particularly pickling or alkali cleaning rust removal method; Can produce serious corrosion to Nd-Fe-Bo permanent magnet material, so the present invention is wrapped in permanent magnet in the stainless steel tube, can protects permanent magnet material.The 2nd, because the magnetic of Nd-Fe-Bo permanent magnet material is more intense; Up to 8000 ~ 10000 Gausses, the magnetic impurity that is adsorbed be difficult to be removed, and adopts the sleeve type structure device can be with impurity absorption outside on the sleeve pipe; In the needs scarfing cinder; Only need extract the stainless steel permanent magnet, after outer tube lost magnetism, impurity can be removed rapidly.
(2) sectional permanent magnet bar of the present invention is connected with iron plate being positioned at the outer tube two ends, is gas explosion, the seepage flow phenomenon that does not thoroughly cause because of the argon arc welding welding in order to prevent.
(3) permanent magnet grid of the present invention can not only utilize the magnetic of permanent magnet that the magnetic impurity in the sewage is adsorbed; And since many impurity like oil, dust etc.; What have has a certain viscosity, and the material that has itself is the negative ion state, so the permanent magnet grid can adsorb above material equally.
(4) filter screen of the present invention can filter the impurity of nonferromagnetic, and the bigger impurity of most particles in the sewage is removed by filter screen earlier, and then carries out second time impurity by the permanent magnet grid and hold back.
When (5) permanent magnet composite screen grid being inserted the WWT passage; Said filter screen plane and permanent magnet grille plane and effluent stream are to being inclined to 75 degree angles respectively; The impurity that strainer filtering is fallen can slide into the bottom of filter screen under the impact of current, help clearing up impurity.
Description of drawings
Fig. 1 is the front view of permanent magnet filter stick in this permanent magnet composite screen grid, among the figure: 1, outer tube; 2, permanent magnet bar; 3, common steel tube; 4, sealing-ring; 5, iron plate.
Fig. 2 is the left view of permanent magnet filter stick in this permanent magnet composite screen grid, among the figure: 1, outer tube; 4, sealing-ring; 5, iron plate.
Fig. 3 is the front view of this permanent magnet composite screen grid.Among the figure: 1, outer tube; 6, suspension ring; 7, filter screen; 8, support.
Fig. 4 is the left view of this permanent magnet composite screen grid.Among the figure: 1, outer tube; 6, suspension ring; 7, filter screen; 8, support.
Fig. 5 is the vertical view of this permanent magnet composite screen grid.Among the figure: 1, outer tube; 4, sealing-ring; 5, iron plate; 6, suspension ring; 7, filter screen; 8, support; 9, bracket holes.
The practical implementation method
Shown in Fig. 1 ~ 5, permanent magnet composite screen grid comprises support 8, filter screen 7 and permanent magnet grid, and permanent magnet grid and filter screen 7 are set in parallel on the support 8, and wherein filter screen 7 is arranged on the outside of support 8, and the permanent magnet grid is arranged on the inboard of filter screen 7; Said permanent magnet grid is installed on the support by permanent magnet filter stick employing mode side by side to be formed; Said permanent magnet filter stick comprises outer tube 1 and is installed on sectional permanent magnet bar 2 in the outer tube, is isolated and is connected by ordinary steel pipeline section 3 between each section permanent magnet bar 2, and two of sleeve pipe 1 end faces are sealed by iron plate 5 respectively outside, and adopts sealing-ring 4 sealings.
Wherein, filter screen 7 is 60 purpose nylon wires; Spacing between the permanent magnet filter stick of permanent magnet grid is 8cm; Outer tube 1 is the SUS316L stainless-steel pipe; The hop count of sectional permanent magnet bar 2 is 10 sections; The length of ordinary steel pipeline section 3 is that 10mm, diameter are 20mm; The sectional permanent magnet bar is respectively Nd-Fe-B permanent magnet, and the length of Nd-Fe-B permanent magnet is that 30mm, diameter are 20mm; The Closed End of one of them iron plate 5 of permanent magnet filter stick outer tube 1 is welded with suspension ring 6.
During use, when permanent magnet composite screen grid was inserted the WWT passage, that one side that makes filter screen was towards the next direction of current stream; Most of impurity is held back by filter screen; Behind filter screen, the magnetic impurity in the residual impurity is held back by the permanent magnet grid, and filtration efficiency is very high.Filter screen plane and permanent magnet grille plane and effluent stream slide into the bottom of filter screen to being inclined to 75 degree angles respectively, being provided with like this impurity that strainer filtering is fallen under the impact of current, help clearing up impurity.
Claims (10)
1. permanent magnet composite screen grid, it is characterized in that: comprise support, filter screen and permanent magnet grid, said permanent magnet grid and filter screen are set in parallel on the support, and wherein filter screen is arranged on the outside of support, and the permanent magnet grid is arranged on the inboard of filter screen; Said permanent magnet grid is installed on the support by permanent magnet filter stick employing mode side by side to be formed; Said permanent magnet filter stick comprises outer tube and is installed on sectional permanent magnet bar in the outer tube, is isolated and is connected by the ordinary steel pipeline section between each section permanent magnet bar, and two end faces of telescopic are sealed by iron plate respectively outside, and adopts the sealing-ring sealing.
2. a kind of permanent magnet composite screen grid according to claim 1 is characterized in that said filter screen is 20 ~ 80 purpose nylon wires.
3. a kind of permanent magnet composite screen grid according to claim 1 is characterized in that said filter screen is 20 ~ 80 purpose wire nettings.
4. a kind of permanent magnet composite screen grid according to claim 1 is characterized in that the spacing between the permanent magnet filter stick of said permanent magnet grid is 5 ~ 15cm.
5. a kind of permanent magnet composite screen grid according to claim 1 is characterized in that said outer tube is a stainless-steel pipe.
6. a kind of permanent magnet composite screen grid according to claim 1, the hop count that it is characterized in that said sectional permanent magnet bar is 4 ~ 29 sections.
7. a kind of permanent magnet composite screen grid according to claim 1, the length that it is characterized in that said ordinary steel pipeline section are that 8 ~ 10mm, diameter are 6 ~ 30mm.
8. a kind of permanent magnet composite screen grid according to claim 6 is characterized in that said sectional permanent magnet bar is respectively Nd-Fe-B permanent magnet, and the length of said Nd-Fe-B permanent magnet is that 20 ~ 100mm, diameter are 6 ~ 30mm.
9. a kind of permanent magnet composite screen grid according to claim 1 is characterized in that being welded with suspension ring at one of them iron plate Closed End of said permanent magnet filter stick outer tube.
10. a kind of permanent magnet composite screen grid according to claim 1, when it is characterized in that being inserted into the WWT passage, said filter screen plane and permanent magnet grille plane and effluent stream are to being inclined to 75 degree angles respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101791567A CN102344188B (en) | 2011-06-29 | 2011-06-29 | Permanent magnet composite filter screen grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101791567A CN102344188B (en) | 2011-06-29 | 2011-06-29 | Permanent magnet composite filter screen grid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102344188A true CN102344188A (en) | 2012-02-08 |
| CN102344188B CN102344188B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101791567A Active CN102344188B (en) | 2011-06-29 | 2011-06-29 | Permanent magnet composite filter screen grid |
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| Country | Link |
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| CN (1) | CN102344188B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198051A (en) * | 2015-10-15 | 2015-12-30 | 苏州大学 | Squirrel-cage water magnetizing equipment |
| CN113060891A (en) * | 2021-03-30 | 2021-07-02 | 宁波磁性材料应用技术创新中心有限公司 | Heavy metal filtering device and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175755Y (en) * | 1993-06-30 | 1994-08-31 | 太原化学工业公司供销铁运公司劳动服务公司磁性材料厂 | High efficiency liquid magnetizing device |
| CN2251555Y (en) * | 1995-12-01 | 1997-04-09 | 申宝恒 | Grille plate type magnetic device |
| CN202131140U (en) * | 2011-06-29 | 2012-02-01 | 无锡光旭新材料科技有限公司 | Permanent-magnet combined filter screen grate |
-
2011
- 2011-06-29 CN CN2011101791567A patent/CN102344188B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175755Y (en) * | 1993-06-30 | 1994-08-31 | 太原化学工业公司供销铁运公司劳动服务公司磁性材料厂 | High efficiency liquid magnetizing device |
| CN2251555Y (en) * | 1995-12-01 | 1997-04-09 | 申宝恒 | Grille plate type magnetic device |
| CN202131140U (en) * | 2011-06-29 | 2012-02-01 | 无锡光旭新材料科技有限公司 | Permanent-magnet combined filter screen grate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198051A (en) * | 2015-10-15 | 2015-12-30 | 苏州大学 | Squirrel-cage water magnetizing equipment |
| CN105198051B (en) * | 2015-10-15 | 2018-07-31 | 苏州大学 | A kind of squirrel-cage magnetization wetting system |
| CN113060891A (en) * | 2021-03-30 | 2021-07-02 | 宁波磁性材料应用技术创新中心有限公司 | Heavy metal filtering device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102344188B (en) | 2012-11-28 |
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