CN203654074U - Seam sieving drum for coarse sieving - Google Patents
Seam sieving drum for coarse sieving Download PDFInfo
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- CN203654074U CN203654074U CN201320868513.5U CN201320868513U CN203654074U CN 203654074 U CN203654074 U CN 203654074U CN 201320868513 U CN201320868513 U CN 201320868513U CN 203654074 U CN203654074 U CN 203654074U
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- sieving
- drum
- rod
- sieve
- bar
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Abstract
The utility model relates to a seam sieving drum for coarse sieving. The seam sieving drum comprises support rings, rod strips and upper and lower connecting flanges, wherein the upper and lower connecting flanges are connected with a pulp sieving machine casing, the support rings are in annular shapes and are in several groups in vertical parallel arrangement, grooves distributed at equal intervals are formed in the circumferential direction of the sieving side of the support rings, the rod strips are fixedly arranged in the groove and are made of wear-resistance high-intensity stainless steel materials, and defibering strips are welded on the sieving surfaces formed by each rod strip and are in spiral shapes. The seam sieving drum is applied to the coarse sieving on paper pulp, cellulose pulp suspension liquid in paper making industry or other similar suspension liquid, through the additional arrangement of a plurality of spiral defibering strips on the sieving surfaces of the sieving drum, the defibering strips and a pressure sieve rotating wing can generate shearing force, the defibering on small paper scraps and fiber agglomerates can be realized, and the sieve pasting phenomenon is avoided; through corrugations arranged at the sieving side of the rod strips, the micro turbulent flow can be generated on the inner surface of the sieve drum, the occurrence of sieve pasting and sieve blocking phenomena can be prevented; through the adoption of the support rings with the thicker outer sides and the thinner inner sides, the opening area is ensured, and meanwhile, the mechanical intensity of the sieve drum can also be improved.
Description
Technical field
The utility model relates to a kind of slotted screen for coarse sizing drum, is applicable to the cellulose paper mass suspension to pulp and paper industry or other similar suspension sieves, filtration, fractionation or classification.
Background technology
The coarse sizing pressurized screen adopting in paper-making process is by the rotation of drive unit rotor driven, and rotor blade produces positive pressure pulse and underbalance pulse makes qualified fiber pass through smoothly screen cylinder.
Impurity in waste paper is had everything, and sorts out from the profile of impurity, all can classify as the category of three-dimensional structure.In view of the technique position characteristics of scalping, coarse sizing screen cylinder mostly is corrugated plating hole sizer drum at present, for hole sizer drum, three-dimensional little hard impurity and the impurity that two dimension is large, one dimension is little comparatively easily pass through, impurity can be to the wearing and tearing of follow-up equipment, reduce service life of equipment, and can reduce the surface quality of paper.
The screening surface of existing rod slotted screen drum is made up of the rod of arranging as bar grid one by one, and these rods are fixed and put in place by a series of support hoop, and what have also has reinforcement to guarantee stability and the robustness of whole screen frame.It is high that it has good slurry quality, and the feature that screening effeciency is high can be removed three-dimensional less impurity with respect to hole sizer drum.But the drum of rod slotted screen in the market only send for stream before fine screen choosing and net, main cause is that rod sieve does not possess the ability of discongesting, cannot meet coarse sizing and discongest the demand of the little scraps of paper, fibrous mass, and excellent screen cylinder mechanical strength is lower, can not adapts to coarse sizing at a high speed or act on violent rotor.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of rational in infrastructure, can discongest the impurity such as the little scraps of paper, fibrous mass, improve quality of paper products and the higher slotted screen for coarse sizing of mechanical strength drum.
Slotted screen for coarse sizing drum described in the utility model, comprise support ring, rod and the upper and lower adpting flange being connected with pulp screen housing, support ring is annular and be arranged in parallel up and down many groups, the screening side circumferencial direction of support ring has the groove being equally spaced, in groove, fix rod, rod adopts wear-resisting high-intensity stainless steel, and on the screening surface that each rod forms, bar is discongested in welding, discongests bar twist.
In this slotted screen drum, rod is fixed in the groove that support ring is equally spaced, and has wide seam between each rod, stitches to realize the filtration to impurity by these.By setting up some spiral bars of discongesting on screen cylinder screening surface, discongest bar with pressurized screen rotor can form shearing force, thereby make bar type slotted screen drum possess the ability of discongesting, can discongest the little scraps of paper and fibrous mass, avoid sticking with paste and sieve phenomenon; By adopting wear-resisting high-intensity stainless steel rod, improve the mechanical strength of screen cylinder.
The screening side of described rod is corrugated.The ripple of rod screening side can form microturbulence at screen cylinder inner surface, prevents from sticking with paste the generation of screen blinding sieve phenomenon.
The outer edge thickness increase of described support ring is greater than inner side thickness, thickens under side direction.Support ring, by adopting outer thick interior thin structure, in guaranteeing aperture area, can improve the mechanical strength of screen cylinder.
The cylindrical of described lower adpting flange is provided with seal groove, fitting tight bar in seal groove, thus guarantee that the impurity in slag slurry can not enter good slurry, has guaranteed product quality.
The described bar cross section of discongesting is rectangle, and thickness is 4～7mm, and width is 4～15mm, and its spiral angle is greater than 45 degree.Wherein, the quantity of discongesting bar can be determined according to screen cylinder diameter, paper pulp raw material, production technology.
The beneficial effect that the utility model compared with prior art had is:
Cellulose paper mass suspension or other similar suspension that this slotted screen drum is applicable to pulp and paper industry carry out coarse sizing, rational in infrastructure, by setting up some spiral bars of discongesting on screen cylinder screening surface, discongest bar and pressurized screen rotor can form shearing force, thereby make bar type slotted screen drum possess the ability of discongesting, can discongest the little scraps of paper and fibrous mass, avoid sticking with paste sieve phenomenon; The ripple of rod screening side can form microturbulence at screen cylinder inner surface, prevents from sticking with paste the generation of screen blinding sieve phenomenon; By adopting outer thick interior thin support ring, in guaranteeing aperture area, also can improve the mechanical strength of screen cylinder.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is perspective view of the present utility model.
In figure: 1, upper adpting flange; 2, support ring; 3, thicken side; 4, rod; 5, discongest bar; 6, sealing strip; 7, lower adpting flange.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, 2, support ring 2, rod 4 and the upper adpting flange 1, the lower adpting flange 7 that are connected with pulp screen housing are drawn together in slotted screen bulge for coarse sizing, support ring 2 is annular and be arranged in parallel up and down many groups, the screening side circumferencial direction of support ring 2 has the groove being equally spaced, in groove, fix rod 4, rod 4 adopts wear-resisting high-intensity stainless steel, and on the screening surface that each rod 4 forms, bar 5 is discongested in welding, discongests bar 5 twist.
In this slotted screen drum, rod 4 is fixed in the groove that support ring 2 is equally spaced, and between each rod 4, has wide seam, stitches to realize the filtration to impurity by these.By setting up some spiral bars 5 of discongesting on screen cylinder screening surface, discongest bar 5 and can form shearing force with pressurized screen rotor, thereby make bar type slotted screen drum possess the ability of discongesting, can discongest the little scraps of paper and fibrous mass, avoid sticking with paste sieve phenomenon; By adopting the rod 4 of wear-resisting high-intensity stainless steel, improve the mechanical strength of screen cylinder.
Wherein:
The screening side of rod 4 is corrugated.The ripple that rod 4 screens side can form microturbulence at screen cylinder inner surface, prevents from sticking with paste the generation of screen blinding sieve phenomenon.
The outer edge thickness increase of support ring 2 is greater than inner side thickness, thickens side 3 downward.Support ring 2, by adopting outer thick interior thin structure, in guaranteeing aperture area, can improve the mechanical strength of screen cylinder.
The cylindrical of lower adpting flange 7 is provided with seal groove, fitting tight bar 6 in seal groove, thus guarantee that the impurity in slag slurry can not enter good slurry, has guaranteed product quality.
Discongesting bar 5 cross sections is rectangle, and thickness is 4～7mm, and width is 4～15mm, and its spiral angle is greater than 45 degree.Wherein, the quantity of discongesting bar 5 can be determined according to screen cylinder diameter, paper pulp raw material, production technology.
Claims (6)
1. the drum of the slotted screen for coarse sizing, it is characterized in that: comprise support ring (2), rod (4) and the upper adpting flange (1) being connected with pulp screen housing, lower adpting flange (7), support ring (2) is annular and be arranged in parallel up and down many groups, the screening side circumferencial direction of support ring (2) has the groove being equally spaced, in groove, fix rod (4), rod (4) adopts wear-resisting high-intensity stainless steel, on the screening surface that each rod (4) forms, bar (5) is discongested in welding, discongests bar (5) twist.
2. the drum of the slotted screen for coarse sizing according to claim 1, is characterized in that: the screening side of described rod (4) is corrugated.
3. the drum of the slotted screen for coarse sizing according to claim 1 and 2, is characterized in that: the outer edge thickness increase of described support ring (2) is greater than inner side thickness, thickens side (3) downward.
4. the drum of the slotted screen for coarse sizing according to claim 1, is characterized in that: the cylindrical of described lower adpting flange (7) is provided with seal groove fitting tight bar (6) in seal groove.
5. the drum of the slotted screen for coarse sizing according to claim 1, is characterized in that: the described spiral angle of discongesting bar (5) is greater than 45 degree.
6. according to claim 1 or 5 for the slotted screen drum of coarse sizing, it is characterized in that: the described cross section of discongesting bar (5) is rectangle, and thickness is 4～7mm, and width is 4～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868513.5U CN203654074U (en) | 2013-12-26 | 2013-12-26 | Seam sieving drum for coarse sieving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868513.5U CN203654074U (en) | 2013-12-26 | 2013-12-26 | Seam sieving drum for coarse sieving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203654074U true CN203654074U (en) | 2014-06-18 |
Family
ID=50920484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868513.5U Expired - Fee Related CN203654074U (en) | 2013-12-26 | 2013-12-26 | Seam sieving drum for coarse sieving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203654074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505380A (en) * | 2018-05-30 | 2018-09-07 | 山东杰锋机械制造有限公司 | Low energy consumption upward flow type pressure sieve |
| CN116446212A (en) * | 2023-06-14 | 2023-07-18 | 山西云冈纸业有限公司 | Front vibrating frame screen of pulp flow net |
-
2013
- 2013-12-26 CN CN201320868513.5U patent/CN203654074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505380A (en) * | 2018-05-30 | 2018-09-07 | 山东杰锋机械制造有限公司 | Low energy consumption upward flow type pressure sieve |
| CN116446212A (en) * | 2023-06-14 | 2023-07-18 | 山西云冈纸业有限公司 | Front vibrating frame screen of pulp flow net |
| CN116446212B (en) * | 2023-06-14 | 2023-09-01 | 山西云冈纸业有限公司 | Front vibrating frame screen of pulp flow net |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20171226 |