CN103949336A - Method for separating heavy residues from papermaking raw materials - Google Patents
Method for separating heavy residues from papermaking raw materials Download PDFInfo
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- CN103949336A CN103949336A CN201410178906.2A CN201410178906A CN103949336A CN 103949336 A CN103949336 A CN 103949336A CN 201410178906 A CN201410178906 A CN 201410178906A CN 103949336 A CN103949336 A CN 103949336A
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- slag
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Abstract
The invention provides a method for separating heavy residues from papermaking raw materials. The method comprises the following steps: (1) breaking the papermaking raw materials by a pulper to obtain pulp, primarily separating the pulp in a residue depositing well of the pulper, and depositing the heavy residues mingled with light residues in the bottom of the residue depositing well; (2) taking out the heavy residues mingled with the light residues, performing secondary separation in an elutriation device, and depositing the heavy residues in the bottom of the elutriation device, wherein a plurality of water spraying pipes with nozzles are arranged at the bottom and the upper part of the elutriation device respectively, the water spraying pipes at the bottom are used for floating out the light residues by flushing, and the water spraying pipes at the upper part are used for flushing the floated light residues out of the elutriation device; (3) taking out the heavy residues at the bottom of the elutriation device. The method is easy and convenient to operate, good in separation effect and low in cost, and can be automatically operated. According to the method, the heavy residues can be completely separated, so that the light residues are directly used for papermaking, the heavy residues are recycled, and the papermaking raw material consumption is greatly reduced.
Description
Technical field
the present invention relates to pulp technology for making paper, relate more specifically to a kind of from paper making raw material the method for separating heavy slag.
Background technology
at present, the paper mill of domestic production craft paper is all to take various waste paper as raw material substantially, waste paper after pulper size degradation, can produce much cannot papermaking light slag, heavy slag.Heavy slag in sediment bottom can utilize hydraulic grab to catch, but in actual mechanical process, grab bucket can catch many available slurries together, this has just caused the waste of raw material, and heavy slag is mainly the metal material that copper scrap, scrap iron etc. can utilize again, in heavy slag, mixes waste plastics, slurry etc. and be unfavorable for the collection of heavy slag and again utilize.Therefore, traditional heavy slag is collected flow process and is unfavorable for heavy slag classification, raw material has been caused to serious waste, thereby needed a kind of effectively method of separating heavy slag badly.
Summary of the invention
in order to overcome the problems referred to above of the prior art, the invention provides a kind of from paper making raw material the method for separating heavy slag, the method is simple, can realize automation mechanized operation, and good separating effect, cost is low.
the technical solution used in the present invention is: a kind of from paper making raw material the method for separating heavy slag, comprise the following steps:
(1) utilize pulper to carry out fragmentation to paper making raw material and obtain slurry, slurry carries out initial gross separation in the sediment well of pulper, and the heavy slag that is mingled with light slag sinks to the bottom of sediment well;
(2) the heavy slag that is mingled with light slag in step (1) is taken out and put into washing device and carry out secondary separation, the bottom of described washing device and top are respectively arranged with a plurality of sparge pipes with nozzle, the sparge pipe of bottom rinses light slag emersion for passing through, the sparge pipe on top is for the light slag of emersion is gone out to washing device, and heavy slag sinks to the bottom of washing device;
(3) the heavy slag of washing device bottom in step (2) is taken out.
further, in step (2), utilize grab bucket that the heavy slag that is mingled with light slag is taken out.
preferably, hydraulic-driven is passed through in above-mentioned grab bucket.
preferably, the top of washing device is also provided with the overflow pipe being connected with pulper, for the light slag from washing device emersion is transported to pulper.Like this, whole method can realize by automation mechanized operation.
compared with prior art, the present invention has the following advantages: the invention discloses a kind of from paper making raw material the method for separating heavy slag, the method by having added elutriation separating step in traditional separation method, heavy slag after initial gross separation has been carried out to secondary separation, the a small amount of light slag that the sparge pipe that washing device bottom arranges is mingled with heavy slag rinses and emersion, the sparge pipe on washing device top is for the light slag of emersion is poured to overflow pipe, and light slag enters in pulper for papermaking by overflow pipe again.Method of the present invention is easy and simple to handle, and cost is low, gets back to pulper continue on for papermaking through elutriation light slag slurry out, has reduced consumption of raw materials.Heavy slag after eluriating is very clean, is beneficial to follow-up screening recycling.
The specific embodiment
below in conjunction with specific embodiment, the present invention is described in further detail, so that those skilled in the art can understand the present invention better, thereby protection scope of the present invention is made to more explicit defining.
in a specific embodiment of the present invention, provide a kind of from paper making raw material the method for separating heavy slag, comprise the following steps:
(1) paper making raw material is dropped into and in pulper, carry out fragmentation and obtain slurry, slurry carries out initial gross separation in the sediment well of pulper, and the heavy slag that is mingled with light slag sinks to the bottom of sediment well;
(2) use hydraulically powered grab bucket that the heavy slag that is mingled with light slag in step (1) is taken out and put into washing device and carry out secondary separation, the bottom of washing device and top are respectively arranged with a plurality of sparge pipes with nozzle, the top of washing device is also provided with the overflow pipe that pre-pulper is connected, the sparge pipe of bottom rinses light slag emersion for passing through, the sparge pipe on top is for rushing in overflow pipe by the light slag of emersion, by overflow pipe, from the light slag of washing device emersion, directly enter pulper and continue on for papermaking, and heavy slag sinks to the bottom of washing device;
(3) the heavy slag of washing device bottom in step (2) is taken out, so that recycling.
of the present invention from paper making raw material the method for separating heavy slag, easy and simple to handle, can realize automation mechanized operation, and cost is lower, good separating effect.By secondary separation, effectively will weigh slag completely separated with light slag, light slag can be got back in pulper for papermaking, and the old metal mainly comprising in heavy slag can utilize again, has reduced wastage of material.The method of the separating heavy slag of the application of the invention, approximately can save every year a large amount of consumption of raw materials.
above specific embodiment of the present invention is illustrated; but protection content of the present invention is not only limited to above embodiment; under of the present invention, in technical field, the common knowledge of a GPRS just can be carried out diversified change within the scope of its technology main idea.
Claims (4)
1. a method for separating heavy slag from paper making raw material, is characterized in that, comprises the following steps:
(1) utilize pulper to carry out fragmentation to paper making raw material and obtain slurry, slurry carries out initial gross separation in the sediment well of pulper, and the heavy slag that is mingled with light slag sinks to the bottom of sediment well;
(2) the heavy slag that is mingled with light slag in step (1) is taken out and put into washing device and carry out secondary separation, the bottom of described washing device and top are respectively arranged with a plurality of sparge pipes with nozzle, the sparge pipe of bottom rinses light slag emersion for passing through, the sparge pipe on top is for the light slag of emersion is gone out to washing device, and heavy slag sinks to the bottom of washing device;
(3) the heavy slag of washing device bottom in step (2) is taken out.
According to claim 1 from paper making raw material the method for separating heavy slag, it is characterized in that, in step (2), utilize grab bucket will be mingled with the heavy slag taking-up of light slag.
According to claim 2 from paper making raw material the method for separating heavy slag, it is characterized in that, hydraulic-driven is passed through in described grab bucket.
According to claim 1 from paper making raw material the method for separating heavy slag, it is characterized in that, the top of described washing device is also provided with the overflow pipe being connected with described pulper, for forming the passage that flow to pulper from the light slag of washing device emersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178906.2A CN103949336A (en) | 2014-04-30 | 2014-04-30 | Method for separating heavy residues from papermaking raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178906.2A CN103949336A (en) | 2014-04-30 | 2014-04-30 | Method for separating heavy residues from papermaking raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103949336A true CN103949336A (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410178906.2A Pending CN103949336A (en) | 2014-04-30 | 2014-04-30 | Method for separating heavy residues from papermaking raw materials |
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| CN (1) | CN103949336A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192520A (en) * | 2016-07-26 | 2016-12-07 | 联盛纸业（龙海）有限公司 | A kind of production method of OCC Pulping Line light slag clean and reuse fiber |
| CN106436405A (en) * | 2015-08-10 | 2017-02-22 | 玖龙纸业(天津)有限公司 | Waste paper raw material light slag processing equipment |
| CN108160351A (en) * | 2017-11-28 | 2018-06-15 | 玖龙纸业（东莞）有限公司 | A kind of light slag weight slag separator of rotary drum pulping machine |
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|---|---|---|---|---|
| JP2002138379A (en) * | 2000-10-31 | 2002-05-14 | Takashi Tawarazumita | Washing dehydrator for small piece of recovered paper cup, milk carton, or the like, and recycling treatment apparatus |
| CN1834340A (en) * | 2005-03-18 | 2006-09-20 | 曾碚凯 | Separating method and system for waste paper and waste plastic mixture |
| CN201109887Y (en) * | 2007-08-08 | 2008-09-03 | 李风宁 | Discontinuous pressure strainer |
| CN102733215A (en) * | 2012-07-17 | 2012-10-17 | 广东理文造纸有限公司 | System for papermaking pulping |
| CN203411842U (en) * | 2013-05-14 | 2014-01-29 | 广东理文造纸有限公司 | Continuous slag removal system |
-
2014
- 2014-04-30 CN CN201410178906.2A patent/CN103949336A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138379A (en) * | 2000-10-31 | 2002-05-14 | Takashi Tawarazumita | Washing dehydrator for small piece of recovered paper cup, milk carton, or the like, and recycling treatment apparatus |
| CN1834340A (en) * | 2005-03-18 | 2006-09-20 | 曾碚凯 | Separating method and system for waste paper and waste plastic mixture |
| CN201109887Y (en) * | 2007-08-08 | 2008-09-03 | 李风宁 | Discontinuous pressure strainer |
| CN102733215A (en) * | 2012-07-17 | 2012-10-17 | 广东理文造纸有限公司 | System for papermaking pulping |
| CN203411842U (en) * | 2013-05-14 | 2014-01-29 | 广东理文造纸有限公司 | Continuous slag removal system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436405A (en) * | 2015-08-10 | 2017-02-22 | 玖龙纸业(天津)有限公司 | Waste paper raw material light slag processing equipment |
| CN106192520A (en) * | 2016-07-26 | 2016-12-07 | 联盛纸业（龙海）有限公司 | A kind of production method of OCC Pulping Line light slag clean and reuse fiber |
| CN106192520B (en) * | 2016-07-26 | 2017-06-06 | 联盛纸业（龙海）有限公司 | A kind of production method of the light slag clean and reuse fiber of OCC Pulping Lines |
| CN108160351A (en) * | 2017-11-28 | 2018-06-15 | 玖龙纸业（东莞）有限公司 | A kind of light slag weight slag separator of rotary drum pulping machine |
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Application publication date: 20140730 |
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| RJ01 | Rejection of invention patent application after publication |