CN1081259C - Method for removing spots on mica papermaking paper surface and its equipment - Google Patents
Method for removing spots on mica papermaking paper surface and its equipment Download PDFInfo
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- CN1081259C CN1081259C CN96102958A CN96102958A CN1081259C CN 1081259 C CN1081259 C CN 1081259C CN 96102958 A CN96102958 A CN 96102958A CN 96102958 A CN96102958 A CN 96102958A CN 1081259 C CN1081259 C CN 1081259C
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Abstract
The present invention relates to a manufacturing method for removing spots on mica paper making paper surface and a device of the manufacturing method. The manufacturing method comprises that mica raw material containing ferric oxide spots is put in a hydraulic pulper and pulverized to manufacture pulp after being sieved and cleaned; mica pulp passes through magnetic separators made of permanent magnets, is respectively arranged in pulp outlets of a tank classifier and a riffler, and is absorbed to remove ferric oxide in the mica pulp; then, the mica pulp is prepared to manufacture mica paper. A magnetic separation technique and devices thereof are added to the present invention on the basis of the original mica paper making technique, and the mica raw material containing spots can be used for manufacturing first grade mica paper. The present invention has the advantages of simple manufacturing process, little investment and obvious economic benefit.
Description
The invention belongs to the mica pulp technology for making paper, particularly remove the production method and the equipment thereof of the mica papermaking paper surface spot of thinking of a way.
At present, traditional non-calcinated type is produced the method for mica paper, generally claims to think of a way production technology, and the mica raw material is screened, clean, and slurrying, classification is joined slurry and is manufactured paper with pulp into mica paper.The mica paper paper that goes out with the pure mica raw material production of quality is fair and clear, and immaculate is the first class mica paper, and its dielectric strength is 18-23kv/mm, and export price is ten thousand yuan/ton of 1.2-1.4.But the pure mica raw material of quality is in short supply day by day, the existing MICA of China is most of for containing the MICA of spottiness, contain spottiness on the mica paper that goes out with the mica raw material production that contains spottiness, the spot on the mica paper is the iron oxide glomeration through chemical examination, is conductive materials.Therefore, the dielectric strength that contains the mica paper of spottiness descends greatly, and dielectric strength is 14-16kv/mm only after tested, and the mica paper that contains spottiness can not be for export, and market sale is also very difficult at home, and selling price is low, only is ten thousand yuan/ton of 0.75-0.95.But the existing mica papermaking production technology of thinking of a way can't be removed spot on the mica paper paper, and also not having by literature search finds to think of a way produces production method and the equipment thereof that mica paper can be removed spot on the mica paper paper.
The object of the present invention is to provide a kind of production method and equipment thereof of removing mica papermaking paper surface spot, in the technical process of production mica paper of thinking of a way, use this invention can remove iron oxide in the mica raw material, can be with the mica raw material that contains the iron oxide spot of inferior quality, the iron oxide that contains in removing the mica raw material can be produced colory first class mica paper.
The present invention is achieved in that the production method of removing mica papermaking paper surface spot is, 1, screening: remove the foreign material in the mica raw material that contains spottiness, 2, clean: flush away contains dirt and the floating thing in the mica raw material of spottiness, 3, slurrying: the mica raw material that contains spottiness that will clean up enters hydro-pulping mechanism slurry, 4, magnetic separation: concentration is 0.20%-0.40%, flow velocity is that the mica slurries in 2-4 rice/time are removed iron oxide in the mica slurries by concentration equipment absorption, 5, join slurry and manufacture paper with pulp into mica paper.The device of removing mica papermaking paper surface spot production method is provided with concentration equipment at the grout outlet place of log washer concentration equipment to be set at the grout outlet place of riffler.The mica raw material that contains spottiness is screened, clean, during concentration equipment that the classified groove grout outlet of mica slurry stream place after the slurrying is provided with, iron oxide in the mica slurries is adsorbed by concentration equipment, when concentration equipment that the mica slurry stream is provided with through the grout outlet place of riffler, through second level magnetic separation, with iron oxide adsorption removal residual in the mica slurries, through above two-stage magnetic separation, the mica paper of manufacturing paper with pulp out with the mica slurries of having removed iron oxide is speckless, pure fair and clear, reached the standard of first class mica paper.This invention increases magnetic separation process and device thereof on the basis of the former mica paper technology of thinking of a way, its technology is simple, and less investment can be produced the first class mica paper with the mica raw material that contains spottiness of inferior quality, its economic benefit highly significant.
Fig. 1 is a process equipment schematic diagram of the present invention, and Fig. 2 is the concentration equipment front view, and Fig. 3 is a concentration equipment A-A cutaway view.Below in conjunction with accompanying drawing the present invention is further described, the production method of removing mica papermaking paper surface spot is: 1, screening, removal contains the silt particle in the mica raw material of spottiness, foreign material such as waste residue, 2, clean, flush away contains the dirt in the mica raw material of spottiness, leaf, the grass bits wait floating thing, 3, slurrying, water under high pressure through the hydro-pulping machine cuts into tiny scale with the impact of mica raw material, mix formation mica slurries with water, 4, magnetic separation, making concentration is 0.20%-0.40%, the flow velocity in log washer is that the mica slurries in 2-4 rice/time pass through concentration equipment, the iron oxide in the mica slurries, 5 are removed in concentration equipment absorption, join slurry and manufacture paper with pulp into mica paper.The device of removing mica papermaking paper surface spot production method is for to be provided with concentration equipment (6) respectively at the grout outlet of log washer (4) and the grout outlet place of riffler (5), concentration equipment (6) is the grid (6) of the shutter shape made with permanent magnet, the crossbeam (7) that is being fixedly connected on the top of grid (8), the grid face of concentration equipment (6) grid (8) becomes 30 °-60 ° with horizontal angle.
When producing with the present invention, be delivered to hydro-pulping machine (2) through the mica raw material that contains spottiness that screens and clean up through belt feeder (1), high-pressure nozzle (3) will fall into ramentum that the mica raw material impact cutting that contains spottiness of pulper bottom is broken into along with the current that rise enter log washer (4), when concentration equipment (6) that the grout outlet place of the classified groove of mica slurry stream (4) is provided with, iron oxide in the mica slurries is adsorbed by concentration equipment, when concentration equipment (6) that the mica slurry stream is provided with through the grout outlet place of riffler (5), through second level magnetic separation with iron oxide adsorption removal residual in the mica slurries.The mica paper paper of manufacturing paper with pulp out with the mica slurries of having removed iron oxide is speckless, the pure fair and clear standard that reaches the first class mica paper.
Use contains the mica paper that the mica raw material of spottiness is produced with the production method of traditional mica papermaking of thinking of a way, and after tested: dielectric strength is 14-16kv/mm, outward appearance paper spottiness.
Use contains the mica raw material of spottiness and produces mica paper with method of the present invention and device:
(1) through screening, the concentration of the mica slurries that cleaning and slurrying form is 0.35%, flow velocity in log washer is 3 meters/hour, behind the iron oxide in concentration equipment (6) absorption removal mica slurries, the mica paper of manufacturing paper with pulp, after tested: dielectric strength is 21-23kv/mm, and outward appearance is fair and clear, immaculate on the paper.
(2) through screening, the concentration of the mica slurries that cleaning and slurrying form is 0.25%, flow velocity in log washer is 2 meters/hour, behind the iron oxide in concentration equipment (6) absorption removal mica slurries, manufacture paper with pulp into mica paper, after tested: dielectric strength is 18-20kv/mm, and outward appearance is fair and clear, immaculate on the paper.
Claims (5)
1, a kind of production method of removing mica papermaking paper surface spot, at first through screening the foreign material of removing in the mica raw material that contains spottiness, clean again, flush away contains dirt and the floating thing in the mica raw material of spottiness, the mica raw material that contains spottiness that will clean up then enters the hydro-pulping machine and carries out slurrying, it is characterized in that concentration is 0.20%-0.40%, flow velocity is that the mica slurries in 2-4 rice/time are removed iron oxide in the mica slurries by concentration equipment (6) absorption, joins slurry at last and manufactures paper with pulp into mica paper.
2, remove the device of the production method of mica papermaking paper surface spot, it is characterized in that concentration equipment (6) being set respectively at the grout outlet of a minute log washer (4) and the grout outlet place of riffler (5).
3, device according to claim 2 is characterized in that the grid (8) of concentration equipment (6) for the shutter shape made with permanent magnet, and crossbeam (7) is being fixedly connected on the top of grid (8).
4, device according to claim 2 is characterized in that the grid face of concentration equipment (6) grid (8) becomes 30 °-60 ° with horizontal angle.
5, method according to claim 1 is characterized in that the concentration of mica slurries is 0.35%, and the flow velocity in log washer is 3 meters/hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102958A CN1081259C (en) | 1996-03-22 | 1996-03-22 | Method for removing spots on mica papermaking paper surface and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102958A CN1081259C (en) | 1996-03-22 | 1996-03-22 | Method for removing spots on mica papermaking paper surface and its equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163960A CN1163960A (en) | 1997-11-05 |
| CN1081259C true CN1081259C (en) | 2002-03-20 |
Family
ID=5117812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96102958A Expired - Fee Related CN1081259C (en) | 1996-03-22 | 1996-03-22 | Method for removing spots on mica papermaking paper surface and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081259C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996053A (en) * | 2017-03-17 | 2017-08-01 | 湖北平安电工材料有限公司 | A kind of high heat conduction mica paper manufacture method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071982A (en) * | 1992-12-03 | 1993-05-12 | 泰州市纸绝缘材料研究所 | Process for producing bast fiber pulp by oxygen-alkali method for electric insulation paper |
| CN1122151A (en) * | 1993-04-21 | 1996-05-08 | 化溶有限公司 | Improvements in or relating to deinking of paper |
-
1996
- 1996-03-22 CN CN96102958A patent/CN1081259C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071982A (en) * | 1992-12-03 | 1993-05-12 | 泰州市纸绝缘材料研究所 | Process for producing bast fiber pulp by oxygen-alkali method for electric insulation paper |
| CN1122151A (en) * | 1993-04-21 | 1996-05-08 | 化溶有限公司 | Improvements in or relating to deinking of paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163960A (en) | 1997-11-05 |
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