CN108483528B - Recovery device and recovery method for cellulose in papermaking wastewater - Google Patents
Recovery device and recovery method for cellulose in papermaking wastewater Download PDFInfo
- Publication number
- CN108483528B CN108483528B CN201810366159.3A CN201810366159A CN108483528B CN 108483528 B CN108483528 B CN 108483528B CN 201810366159 A CN201810366159 A CN 201810366159A CN 108483528 B CN108483528 B CN 108483528B
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- Prior art keywords
- hopper
- cellulose
- paraffin
- papermaking
- waste water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Abstract
The invention discloses a recovery device and a recovery method of cellulose in papermaking wastewater, comprising a reservoir, a paraffin block and a hopper; the papermaking waste water under the normal atmospheric temperature is equipped with in the cistern, contain a large amount of cellulose material in the papermaking waste water, the paraffin piece includes normal atmospheric temperature state and heated state, and under the normal atmospheric temperature state, the paraffin piece floats in the papermaking waste water surface of water, and under the heated state, the paraffin piece gets into in the papermaking waste water gradually, the hopper includes feeder hopper and play hopper, the feeder hopper is linked together with a play hopper, be provided with high pressure nozzle and heating rod in the feeder hopper, the high pressure nozzle tail end is connected with outside air feeder. The invention can effectively recycle the cellulose in the papermaking wastewater, has simple structure, good recycling effect and low cost, and can not cause secondary pollution.
Description
Technical Field
The invention belongs to the technical field of recovery of cellulose in papermaking wastewater, and particularly relates to a recovery device and a recovery method for cellulose in papermaking wastewater.
Background
The papermaking waste water is waste water produced in the papermaking process, the papermaking waste water has great harm, wherein the black liquor has the greatest harm, the pollutants contained in the black liquor account for more than 90 percent of the total pollution discharge amount of the papermaking industry, and the black liquor has great alkalinity, dark color, heavy odor and much foam, consumes a great amount of dissolved oxygen in water, seriously pollutes water sources and brings harm to the environment and human health. The most serious environmental pollution of the middle-section water is chlorine-containing waste water generated in the bleaching process, such as chlorine bleaching waste water, hypochlorite bleaching waste water and the like. In addition, the bleaching waste liquid contains carcinogen dioxin with extremely strong toxicity, which also poses serious threats to the ecological environment and human health.
In the paper making industrial sewage, harmful chemical inorganic substances are contained, and organic substances such as volatile phenol, precipitated solid, suspended matters, cellulose and the like are also contained, wherein the cellulose is a raw material required in the paper making process, so the cellulose needs to be recycled.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the recovery device and the recovery method of the cellulose in the papermaking wastewater, can effectively recycle the cellulose in the papermaking wastewater, and has the advantages of simple structure, good recovery effect, low cost and no secondary pollution.
In order to achieve the purpose, the invention adopts the technical scheme that: a recovery device for cellulose in papermaking wastewater comprises a reservoir, a paraffin block and a hopper; the papermaking waste water under the normal atmospheric temperature is equipped with in the cistern, contain a large amount of cellulose material in the papermaking waste water, the paraffin piece includes normal atmospheric temperature state and heated state, and under the normal atmospheric temperature state, the paraffin piece floats in the papermaking waste water surface of water, and under the heated state, the paraffin piece gets into in the papermaking waste water gradually, the hopper includes feeder hopper and play hopper, the feeder hopper is linked together with a play hopper, be provided with high pressure nozzle and heating rod in the feeder hopper, the high pressure nozzle tail end is connected with outside air feeder.
In a preferred embodiment of the invention, flow control plates are arranged on two sides of the position where the feed hopper is communicated with the discharge hopper.
In a preferred embodiment of the present invention, the paraffin block is a fine particle block.
In a preferred embodiment of the present invention, the feeding hopper and the discharging hopper are sequentially arranged from top to bottom, the feeding hopper is in a funnel shape, and the discharging hopper is in a cylindrical shape.
In a preferred embodiment of the invention, the feed hopper and the discharge hopper are double-layer hoppers, the outer layer hopper is a stainless steel part, and the inner layer hopper is a wear-resistant part.
In a preferred embodiment of the present invention, the method comprises the following steps:
(1) pouring the papermaking wastewater cooled to the normal temperature into a reservoir, and pouring enough fine paraffin block particles into the reservoir;
(2) because the density of the paraffin is less than that of water, the paraffin blocks float on the surface of the papermaking wastewater, and the paraffin blocks are moved to be uniformly distributed on the surface of the papermaking wastewater;
(3) the spraying material in the feed hopper is heated by a heating rod and sprayed out of the discharge hopper under the acceleration action of a high-pressure spray head, after the spraying material with high temperature is contacted with the paraffin block, the paraffin block enters the papermaking wastewater along with the spraying material, and the paraffin block enters the papermaking wastewater and then is combined with cellulose contained in the papermaking wastewater;
(4) after the sand blasting operation is finished, standing the papermaking wastewater for 15-30 min, recovering the paraffin block to normal temperature, floating the cellulose carried by the paraffin block to the water surface of the papermaking wastewater, and fishing out the cellulose by using an industrial strainer;
(5) repeating the steps for 1-2 times, and recovering the cellulose to the maximum extent.
In a preferred embodiment of the present invention, the amount of paraffin blocks is proportional to the amount of paper-making wastewater.
In a preferred embodiment of the invention, the paraffin block is replaceable.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) the sand blasting process is used for recovering the cellulose in the papermaking wastewater, the operation is simple, and the repeated circulating operation can be carried out, so that the optimal recovery effect is achieved;
(2) the paraffin block is used as a carrier for recovering cellulose, so that the cost is low, the recovery effect is good, and the paraffin block can be repeatedly utilized;
(3) through the use of flow control board to can control the flow of spouting the material according to the quantity of paraffin piece, make the recovery effect reach the best.
Drawings
The invention is further explained below with reference to the figures and examples;
FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
in the figure: 1. a reservoir; 2. papermaking wastewater; 3. a paraffin block; 4. a feed hopper; 5. a discharge hopper; 6. a high pressure spray head; 7. a heating rod; 8. a flow control panel; 9. a stainless steel member; 10. a wear part.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.
As shown in fig. 1 and 2, a recovery device for cellulose in paper making wastewater comprises a reservoir 1, a paraffin block 3 and a hopper; the paper making waste water 2 under the normal atmospheric temperature is equipped with in the cistern 1, contain a large amount of cellulose material in the paper making waste water 2, paraffin piece 3 includes normal atmospheric temperature state and heated state, under the normal atmospheric temperature state, paraffin piece 3 floats in the paper making waste water surface of water, under the heated state, paraffin piece 3 gets into in the paper making waste water 2 gradually, paraffin piece 3 gets into in the paper making waste water 2 after, can combine with the cellulose in the paper making waste water 2, when the temperature of paraffin piece 3 resumes to under the normal atmospheric temperature condition, paraffin piece 3 can carry the cellulose and float to the paper making waste water 2 surface of water, the hopper includes feeder hopper 4 and play hopper 5, feeder hopper 4 is linked together with play hopper 5 to guaranteed the ejection of compact smoothly, be provided with high pressure nozzle 6 and heating rod 7 in the feeder hopper 4, the high pressure gas that spouts the material through high pressure nozzle 6 accelerates to a higher injection velocity rapidly, heating rod 7 heats the spouting, make and spout the material and have a certain temperature when getting into papermaking waste water 2, can bring into papermaking waste water 2 with paraffin block 3 smoothly in, 6 tail ends of high pressure nozzle are connected with outside air feeder.
When the device is used, the flow control plates 8 are arranged on two sides of the position where the feed hopper 4 is communicated with the discharge hopper 5, and the flow control plates 8 are used, so that the flow of sprayed materials can be controlled according to the quantity of the paraffin blocks 3, and the recovery effect is the best.
When the invention is used, the paraffin block 3 is a fine particle block, thereby increasing the area of the paraffin block 3 combined with cellulose and improving the recovery effect.
When the feeding hopper is used, the feeding hopper 4 and the discharging hopper 5 are sequentially arranged from top to bottom, the feeding hopper 4 is in a funnel shape, and the discharging hopper 5 is in a cylindrical shape.
When the feeding hopper and the discharging hopper are used, the feeding hopper 4 and the discharging hopper 5 are double-layer hoppers, the outer layer hopper is a stainless steel part 9, the inner layer hopper is a wear-resistant part 10, and the inner wall of the hopper is prevented from being scratched by spraying materials moving at a high speed by using the wear-resistant part 10.
When the invention is used, the method comprises the following steps:
(1) pouring the papermaking wastewater 2 cooled to the normal temperature into a reservoir 1, and pouring enough fine paraffin blocks 3 into the reservoir 1;
(2) because the density of the paraffin is less than that of water, the paraffin blocks 3 float on the surface of the papermaking wastewater 2, and the paraffin blocks 3 are moved to be uniformly distributed on the water surface of the papermaking wastewater 2;
(3) the spraying material in the feed hopper 4 is heated by a heating rod 7 and sprayed out from the discharge hopper 5 under the acceleration action of a high-pressure spray head 6, after the spraying material with high temperature is contacted with the paraffin block 3, the paraffin block 3 enters the papermaking wastewater 2 along with the spraying material, and the paraffin block 3 enters the papermaking wastewater 2 and then is combined with cellulose contained in the papermaking wastewater 2;
(4) after the sand blasting operation is finished, standing the papermaking wastewater 2 for 15-30 min, recovering the paraffin block 3 to normal temperature, floating the cellulose carried by the paraffin block to the water surface of the papermaking wastewater 2, and fishing out the cellulose by using an industrial strainer;
(5) repeating the steps for 1-2 times, and recovering the cellulose to the maximum extent. The recovery method of the invention uses the paraffin as the carrier for recovering the cellulose, reduces the use cost and can be repeatedly used while ensuring the recovery effect, and the sand blasting process is used for recovering the cellulose in the papermaking wastewater 2, so that the operation is simple, and the repeated circulating operation can be carried out, thereby achieving the best recovery effect.
When the invention is used, the quantity of the paraffin blocks 3 is in direct proportion to the quantity of the papermaking wastewater 2, thereby ensuring the recovery effect,
when the invention is used, the paraffin block 3 can be replaced, and the paraffin block 3 can be replaced by substance particles which have lower density than water, are insoluble in water, do not react with cellulose and can be combined with cellulose.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a recovery unit of cellulose in papermaking waste water which characterized in that: comprises a reservoir, a paraffin block and a hopper; the papermaking waste water under the normal atmospheric temperature is equipped with in the cistern, contain a large amount of cellulose material in the papermaking waste water, the paraffin piece includes normal atmospheric temperature state and heated state, and under the normal atmospheric temperature state, the paraffin piece floats in the papermaking waste water surface of water, and under the heated state, the paraffin piece gets into in the papermaking waste water gradually, the hopper includes feeder hopper and play hopper, the feeder hopper is linked together with a play hopper, be provided with high pressure nozzle and heating rod in the feeder hopper, the high pressure nozzle tail end is connected with outside air feeder.
2. The recycling device of cellulose in paper making wastewater according to claim 1, characterized in that: the both sides of the position where the feed hopper is communicated with the discharge hopper are both provided with flow control plates.
3. The recycling device of cellulose in paper making wastewater according to claim 1, characterized in that: the paraffin block is a fine particle block.
4. The recycling device of cellulose in paper making wastewater according to claim 2, characterized in that: the feeding hopper and the discharging hopper are sequentially arranged from top to bottom, the feeding hopper is in a funnel shape, and the discharging hopper is in a cylindrical shape.
5. The recycling device of cellulose in paper making wastewater according to claim 4, characterized in that: the feed hopper and the discharge hopper are double-layer hoppers, the outer layer hopper is a stainless steel part, and the inner layer hopper is a wear-resistant part.
6. The method for recycling the cellulose in the papermaking wastewater by the recycling device according to claim 1, characterized by comprising the following steps:
(1) pouring the papermaking wastewater cooled to the normal temperature into a reservoir, and pouring enough fine paraffin block particles into the reservoir;
(2) because the density of the paraffin is less than that of water, the paraffin blocks float on the surface of the papermaking wastewater, and the paraffin blocks are moved to be uniformly distributed on the surface of the papermaking wastewater;
(3) the spraying material in the feed hopper is heated by a heating rod and sprayed out of the discharge hopper under the acceleration action of a high-pressure spray head, after the spraying material with high temperature is contacted with the paraffin block, the paraffin block enters the papermaking wastewater along with the spraying material, and the paraffin block enters the papermaking wastewater and then is combined with cellulose contained in the papermaking wastewater;
(4) after the sand blasting operation is finished, standing the papermaking wastewater for 15-30 min, recovering the paraffin block to normal temperature, floating the cellulose carried by the paraffin block to the water surface of the papermaking wastewater, and fishing out the cellulose by using an industrial strainer;
(5) repeating the steps for 1-2 times, and recovering the cellulose to the maximum extent.
7. The method for recycling cellulose in papermaking wastewater according to claim 6, wherein: the number of paraffin blocks is in direct proportion to the amount of paper-making wastewater.
8. The method for recycling cellulose in papermaking wastewater according to claim 6, wherein: the paraffin block can be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366159.3A CN108483528B (en) | 2018-04-23 | 2018-04-23 | Recovery device and recovery method for cellulose in papermaking wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366159.3A CN108483528B (en) | 2018-04-23 | 2018-04-23 | Recovery device and recovery method for cellulose in papermaking wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN108483528A CN108483528A (en) | 2018-09-04 |
| CN108483528B true CN108483528B (en) | 2021-02-05 |
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| CN201810366159.3A Active CN108483528B (en) | 2018-04-23 | 2018-04-23 | Recovery device and recovery method for cellulose in papermaking wastewater |
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| WO2002055628A3 (en) * | 2000-11-01 | 2002-09-19 | Isolyser Co | Oil absorption and reclamation methods |
| CN1715384A (en) * | 2004-07-02 | 2006-01-04 | 宏润(聊城)印染有限公司 | Device and method for dewaxing textile and recovering wax |
| CN101067289A (en) * | 2007-06-27 | 2007-11-07 | 张书荣 | Method for papermaking utilizing waste paper containing wax |
| CN201722236U (en) * | 2010-07-28 | 2011-01-26 | 日进教学器材(昆山)有限公司 | Sedimentation filter box |
| CN102886299A (en) * | 2012-10-15 | 2013-01-23 | 福建省民爆化工股份有限公司 | Method for recovering paraffin from waste explosive paper tubes |
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| CN104276738A (en) * | 2014-09-29 | 2015-01-14 | 西安建筑科技大学 | Rapid harmless biological degradation method against waxy oil sludge |
| CN105051170A (en) * | 2013-03-26 | 2015-11-11 | 标准品牌（英国）有限公司 | Firelog and method of making firelog |
| CN105499255A (en) * | 2015-12-29 | 2016-04-20 | 北京京诚新星造纸工程技术有限公司 | Plastic fiber separator and separating method |
| CN106734914A (en) * | 2017-01-05 | 2017-05-31 | 重庆市九明机械制造有限公司 | Dewaxing structure of wax mold |
| CN107841898A (en) * | 2017-12-07 | 2018-03-27 | 福建省联盛纸业有限责任公司 | A kind of paper machine paper slag grading plant |
-
2018
- 2018-04-23 CN CN201810366159.3A patent/CN108483528B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002055628A3 (en) * | 2000-11-01 | 2002-09-19 | Isolyser Co | Oil absorption and reclamation methods |
| CN1715384A (en) * | 2004-07-02 | 2006-01-04 | 宏润(聊城)印染有限公司 | Device and method for dewaxing textile and recovering wax |
| CN101067289A (en) * | 2007-06-27 | 2007-11-07 | 张书荣 | Method for papermaking utilizing waste paper containing wax |
| CN201722236U (en) * | 2010-07-28 | 2011-01-26 | 日进教学器材(昆山)有限公司 | Sedimentation filter box |
| CN102886299A (en) * | 2012-10-15 | 2013-01-23 | 福建省民爆化工股份有限公司 | Method for recovering paraffin from waste explosive paper tubes |
| CN105051170A (en) * | 2013-03-26 | 2015-11-11 | 标准品牌（英国）有限公司 | Firelog and method of making firelog |
| CN103981292A (en) * | 2014-05-04 | 2014-08-13 | 陕西科技大学 | Resource utilization method of wax-containing waste paper |
| CN104276738A (en) * | 2014-09-29 | 2015-01-14 | 西安建筑科技大学 | Rapid harmless biological degradation method against waxy oil sludge |
| CN105499255A (en) * | 2015-12-29 | 2016-04-20 | 北京京诚新星造纸工程技术有限公司 | Plastic fiber separator and separating method |
| CN106734914A (en) * | 2017-01-05 | 2017-05-31 | 重庆市九明机械制造有限公司 | Dewaxing structure of wax mold |
| CN107841898A (en) * | 2017-12-07 | 2018-03-27 | 福建省联盛纸业有限责任公司 | A kind of paper machine paper slag grading plant |
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| CN108483528A (en) | 2018-09-04 |
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