CN102418297A - Papermaking pulp concentrating device - Google Patents
Papermaking pulp concentrating device Download PDFInfo
- Publication number
- CN102418297A CN102418297A CN2011104267380A CN201110426738A CN102418297A CN 102418297 A CN102418297 A CN 102418297A CN 2011104267380 A CN2011104267380 A CN 2011104267380A CN 201110426738 A CN201110426738 A CN 201110426738A CN 102418297 A CN102418297 A CN 102418297A
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- Prior art keywords
- circular screen
- waste water
- pulp
- centrifugal pump
- concentrating device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a papermaking pulp concentrating device, which comprises a circular screen concentrator, wherein a waste water buffer tank is connected to the circular screen concentrator by a pipeline; and a dewatering centrifugal pump is arranged on a water outlet pipe of the waste water buffer tank. In the papermaking pulp concentrating device, the vacuum pulp washing principle is applied to the circular screen concentrator, and the dewatering acceleration is accelerated by the waste water buffer tank and the dewatering centrifugal pump which are arranged on the original circular screen concentrator additionally under negative pressure formed by pumping of the centrifugal pump to enhance a circular screen concentrating effect effectively, reduce residual alkali before bleaching and establish the foundation for the chemical consumption using amount of a bleaching machine for papermaking pulp. By the detection, the pulp outlet concentration can be improved by about 35 to 40 percent by utilizing the concentrating device.
Description
Technical field
The invention belongs to the papermaking equipment technical field, particularly relate to a kind of paper making pulp enrichment facility.
Background technology
In the pulping and paper-making industry; Decker be mainly used in slurry dehydration, concentrate; Its principle one relies on the inside and outside liquid level difference of cylinder mould to carry out, and secondly is to utilize the extruding force between pressure roller and the cylinder mould to dewater, but unsatisfactory on result of use; Its cylinder concentrated effect is poor, and discharging concentration is merely 3-4%.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, providing a kind of can effectively increase concentrated effect, reduces the paper making pulp enrichment facility of residual alkali before floating, and can discharging concentration be increased to 7-8%.
The present invention realizes through following technical scheme:
A kind of paper making pulp enrichment facility comprises decker, it is characterized in that on said decker, being connected with the waste water surge tank through pipeline, and the draining centrifugal pump is installed on the outlet pipe of this waste water surge tank.
Paper making pulp enrichment facility of the present invention uses vacuum pulp washing principle on the decker; Through setting up waste water surge tank and draining centrifugal pump at original decker; The negative pressure of utilizing the suction of centrifugal pump and forming increases the draining acceleration; Thereby effectively increased the cylinder concentrated effect, and reduced float before residual alkali, established favourable basis for the bleaching machine chemical industry of paper making pulp consumes consumption.Through detecting, adopt enrichment facility of the present invention, pulp concentration can improve about 35-40%.
Description of drawings
Fig. 1 is the concentration flow path sketch map of prior art decker;
Fig. 2 is the structural representation sketch of paper making pulp enrichment facility of the present invention.
The specific embodiment
Paper making pulp enrichment facility of the present invention is the improvement of on the basis of existing decker, carrying out, and promptly on decker 1, connects a waste water surge tank 2 through pipeline 5, and draining centrifugal pump 4 is installed on the outlet pipe 3 of waste water surge tank 2.
After above-mentioned paper making pulp enrichment facility application, conveying end slurry 25g is diluted to 100g, gets rid of to over dry with centrifuge, and the slurry after the drying multiply by centrifuge and dries coefficient, then divided by 25g, obtains pulp concentration machine raising degree.Experiment shows, use this device after, pulp concentration can improve 35-40%.
Claims (1)
1. paper making pulp enrichment facility; Comprise decker (1); It is characterized in that upward being connected with waste water surge tank (2), on the outlet pipe (3) of this waste water surge tank (2) draining centrifugal pump (4) is installed through pipeline (5) at said decker (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104267380A CN102418297A (en) | 2011-12-19 | 2011-12-19 | Papermaking pulp concentrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104267380A CN102418297A (en) | 2011-12-19 | 2011-12-19 | Papermaking pulp concentrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418297A true CN102418297A (en) | 2012-04-18 |
Family
ID=45942929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104267380A Pending CN102418297A (en) | 2011-12-19 | 2011-12-19 | Papermaking pulp concentrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115726213A (en) * | 2022-11-18 | 2023-03-03 | 江苏天成纸业有限公司 | Pulp thickener |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061823A (en) * | 1991-12-21 | 1992-06-10 | 天津市水利科学研究所 | Fast drying and consolidating method with vacuum precompression for blown soil fill |
| CN2183461Y (en) * | 1993-12-15 | 1994-11-23 | 熊福达 | Centrifugal pump |
| CN201704576U (en) * | 2010-05-05 | 2011-01-12 | 河南省江河纸业有限责任公司 | Round net concentrating machine |
-
2011
- 2011-12-19 CN CN2011104267380A patent/CN102418297A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061823A (en) * | 1991-12-21 | 1992-06-10 | 天津市水利科学研究所 | Fast drying and consolidating method with vacuum precompression for blown soil fill |
| CN2183461Y (en) * | 1993-12-15 | 1994-11-23 | 熊福达 | Centrifugal pump |
| CN201704576U (en) * | 2010-05-05 | 2011-01-12 | 河南省江河纸业有限责任公司 | Round net concentrating machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115726213A (en) * | 2022-11-18 | 2023-03-03 | 江苏天成纸业有限公司 | Pulp thickener |
| CN115726213B (en) * | 2022-11-18 | 2023-11-28 | 江苏天成纸业有限公司 | Pulp thickener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |