CN102249359A - Waste water recycling device for paper making vacuum system and water saving method - Google Patents
Waste water recycling device for paper making vacuum system and water saving method Download PDFInfo
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- CN102249359A CN102249359A CN2011101076926A CN201110107692A CN102249359A CN 102249359 A CN102249359 A CN 102249359A CN 2011101076926 A CN2011101076926 A CN 2011101076926A CN 201110107692 A CN201110107692 A CN 201110107692A CN 102249359 A CN102249359 A CN 102249359A
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Abstract
The invention discloses a waste water recycling device for a paper making vacuum system and a water saving method. The device consists of a gas-water separator, a vacuum pump, a filtrate pump, a header box, a white water pool and pipelines, wherein the air outlet of the gas-water separator is connected with the inlet of the vacuum pump; the liquid draining outlet of the vacuum pump is connected with the white water pool; the pumping port of the gas-water separator is connected with the inlet of the filtrate pump; the outlet of the filtrate pump is connected with the header box; the lower part of the header box is provided with a liquid outlet; the liquid outlet is connected with the working liquid inlet of the vacuum pump; the upper part of the header box is provided with an overflow port; and the overflow port is connected with the white water pool. In the working process, the mixture of gas and white water of a vacuum dehydrating element is collected into the gas-water separator, the separated gas enters the vacuum pump from the air outlet of the gas-water separator and is emitted into the atmosphere through the vacuum pump, the white water enters the filtrate pump form the pumping port of the gas-water separator and is conveyed into the header box through the filtrate pump, and a part of white water of the header box enters the vacuum pump and is taken as a working liquid instead of clear water.
Description
Technical field
The present invention relates to the device that a kind of paper waste is recycled, especially relate to the device that paper machine vacuum system waste water reclamation utilizes.The invention still further relates to a kind of water-saving method that utilizes this device.
Background technology
In paper-making process, suction flat box, suction couch roll, suction press and woollen blanket vacuum furnace all need be kept certain vacuum tightness, Wet-end Vacuum System of Paper Machine mainly by: vacuum hydro-extraction element, air water separator, vacuum pump, vacuum pipe etc. are formed, vacuum pump need use working fluid in the course of the work, the general at present clear water that uses.
Chinese patent application number is CN200920313700.0, notification number is CN201650879U, name is called: the patent of " gas-liquid separation device ", disclose a kind of gas-liquid separation device on November 24th, 2010, this device is applied to the gas-liquid separation device in the vacuum dewatering system in the light industry paper industry.When under vacuum tightness is lower than the vacuum state of 0.08MPa, working, the gas that comes from wet end of machine etc. and liquid pass through the gas-liquid import in the gas-liquid separator, through spiral dash device of special construction etc. gas and most of liquid being carried out forced action type separates, few partially liq then utilizes the velocity contrast of gas and liquid to carry out free style with weight difference to separate, gas is then taken away by wet vacuum pump from air, and by the filtrate pump that is located at downside liquid or the plain boiled water of separating is carried out discharge opeing, recovery and cycling and reutilization by pump discharge.Effectively improve separation rate, the cyclic utilization rate height cuts down the consumption of energy, and reduces environmental pollution, improves paper machine making rate and paper machine speed simultaneously.Yet, this apparatus structure complexity, also few in the application of existing Wet-end Vacuum System of Paper Machine.
It is generally acknowledged and contain multiple organism, inorganics and microorganism in the plain boiled water, easily produce precipitation and dirt, be not suitable for the working fluid of vacuum pump, vacuum pump often uses clear water as working fluid in the course of the work at present, consume more water resources, part enterprise has carried out recycle and reuse to working fluid, but brings the working fluid temperature to rise, and recovery system need increase extra problems such as energy consumption.
Summary of the invention:
Technical problem to be solved by this invention is on the basis of existing technology, and the waste water that provides a kind of and economize on water more, reclaim is easy to realize recycle, the paper machine vacuum system waste water reclamation use device that energy consumption is low; For this reason, the present invention also will provide a kind of water-saving method that utilizes this device.
In order to solve the problems of the technologies described above, basic technical scheme of the present invention is: a kind of paper machine vacuum system waste water reclamation use device, comprise air water separator, vacuum pump, the negative pump of gram, header box, white water chest, pipeline etc., described air water separator comprises cylindrical shell, side in the cylindrical shell middle and upper part is provided with the gas-liquid import, top at cylindrical shell is provided with air, be provided with pumping outlet in the cylindrical shell bottom, air is connected with the vacuum pump import by pipeline, vacuum pump discharge opeing outlet is connected with white water chest by pipeline, the vacuum pump steam drain leads to atmosphere, described air water separator pumping outlet is connected by the negative pump inlet of pipeline and gram, the negative pump discharge of gram is connected with header box by pipeline, described header box bottom is provided with liquid outlet, liquid outlet is connected with the import of vacuum pump working fluid by pipeline, described header box top is provided with overflow port, and overflow port is connected with white water chest by pipeline.
In order to reduce the air content in the plain boiled water, stablize the production of paper machine, improve the quality of paper, improvement project as described paper machine vacuum system water saving fixtures basic technical scheme, also be provided with second air water separator between vacuum pump outlet and the white water chest, described second air water separator comprises that cylindrical shell, the side in the cylindrical shell middle and upper part are provided with the gas-liquid import, are provided with air on the top of cylindrical shell, are provided with liquid outlet in the cylindrical shell bottom, described air communicates with atmosphere, and described liquid outlet is connected with white water chest by pipeline.In this preferred version,, reduced the air content that enters plain boiled water in the white water chest, helped the normal operation of paper machine and the raising of quality product by the effect of air water separator.
In order to utilize this paper machine vacuum system waste water reclamation use device to realize water saving, the present invention also provides a kind of water-saving method.The basic technical scheme of this water-saving method is: may further comprise the steps: gas, the plain boiled water mixture of vacuum hydro-extraction element are collected in the air water separator, separate through air water separator, the gas that contains plain boiled water enters vacuum pump from the air of air water separator cylinder top, the plain boiled water that enters vacuum pump enters white water chest with the working fluid of vacuum pump through vacuum pump discharge opeing outlet, and the gas that enters vacuum pump enters atmosphere through the vacuum pump steam drain; The plain boiled water of separating through air water separator enters the negative pump of gram from the pumping outlet bottom the air water separator cylindrical shell, is pumped into header box through restraining to bear, and the plain boiled water some of header box enters vacuum pump as working fluid, and remainder flows in the white water chest.
Improvement project as described basic water-saving method, the described gas of plain boiled water that contains is behind vacuum pump, plain boiled water is wherein sent into second air water separator with the working fluid of vacuum pump through vacuum pump discharge opeing outlet and is separated, after the separation, gas from the air of the second air water separator cylinder top enter the atmosphere, the working fluid of plain boiled water and vacuum pump enters the white water chest from the liquid outlet of second air water separator cylindrical shell bottom.The plain boiled water of vacuum pump discharge opeing outlet, after second air water separator separated, gas entered the atmosphere from the air of cylinder top, played the effect of removing micro-bubble in the plain boiled water, help reducing the gas content in the plain boiled water, reach the purpose of stablizing the paper machine operation, improving quality of paper products.
The invention has the beneficial effects as follows: gas that vacuum unit comes out and plain boiled water, plain boiled water after air water separator separates is directly taken away by restraining negative pump, significantly reduced the plain boiled water content that enters vacuum pump, stablize the vacuum pump load, thereby reach the purpose that cuts down the consumption of energy, stablizes wet end of machine vacuum tightness, improves water separation capability; The plain boiled water that the negative pump of gram is taken away substitutes the working fluid of clear water as vacuum pump, thereby reaches water-saving purpose.
Description of drawings
Fig. 1 is structural representation and the water-saving method schema of waste water reclamation use device embodiment of the present invention;
Fig. 2 is the structural representation and the water-saving method schema of waste water reclamation use device embodiment improvement project of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of paper machine waste water reclamation use device of the present invention.Paper machine waste water reclamation use device comprises vacuum hydro-extraction element 1, air water separator 2, vacuum pump 3, header box 4, the negative pump 5 of gram, white water chest 6, pipeline etc., described air water separator 2 comprises cylindrical shell, side in the cylindrical shell middle and upper part is provided with the gas-liquid import, top at cylindrical shell is provided with air, be provided with pumping outlet in the cylindrical shell bottom, the gas-liquid import is connected with vacuum hydro-extraction element 1 by pipeline, air is connected by the import of pipeline with vacuum pump 3, vacuum pump discharge opeing outlet 3 is connected with white water chest 6 by pipeline, vacuum pump steam drain (not shown) leads to atmosphere, the pumping outlet of air water separator 2 is connected by pipeline with the import of the negative pump 5 of gram, the outlet of the negative pump 5 of gram and header box 4 are connected by pipeline, described header box 4 bottoms are provided with liquid outlet, pipe connection is passed through in the working fluid import of liquid outlet and vacuum pump 3, described header box 4 tops are provided with overflow port, and overflow port and white water chest 6 are connected by pipeline.Realize water saving in this device working process by the following method: gas, plain boiled water mixture that vacuum hydro-extraction element 1 produces, vacuum gravitation by vacuum pump 3 generations, collect in the air water separator 2, in air water separator 2, separate, the gas that contains plain boiled water enters vacuum pump 3 from the air of air water separator 2 cylinder tops, its plain boiled water enters in the white water chest 6 through vacuum pump discharge opeing outlet 3 with the working fluid of vacuum pump, and the gas that enters vacuum pump enters atmosphere through the vacuum pump steam drain; The plain boiled water that air water separator 2 is separated enters the negative pump 5 of gram from the pumping outlet of air water separator 2 cylindrical shells bottom, sends into header box 4 through restraining negative pump 5, and a part of vacuum pump 3 that flows into of the plain boiled water of header box 4 is as working fluid, and remainder flows in the white water chest 6.
Fig. 2 is the structural representation of improvement project paper machine waste water reclamation use device of the present invention.Paper machine waste water reclamation use device comprises vacuum hydro-extraction element 1, air water separator 2, vacuum pump 3, header box 4, the negative pump 5 of gram, white water chest 6, second air water separator 7, pipeline etc., described air water separator 2 comprises cylindrical shell, side in the cylindrical shell middle and upper part is provided with the gas-liquid import, top at cylindrical shell is provided with air, be provided with pumping outlet in the cylindrical shell bottom, the gas-liquid import of air water separator 2 is connected with vacuum hydro-extraction element 1 by pipeline, air is connected by the import of pipeline with vacuum pump 3, vacuum pump discharge opeing outlet 3 is connected by the gas-liquid import of pipeline with second air water separator, 7 cylindrical shells, one side, the top of second air water separator, 7 cylindrical shells is provided with air, air communicates with atmosphere, be provided with leakage fluid dram in the cylindrical shell bottom, the leakage fluid dram of second air water separator 7 is connected with white water chest 6 by pipeline, the pumping outlet of air water separator 2 is connected by the import of pipeline with the negative pump 5 of gram, the outlet of the negative pump 5 of gram is connected with header box 4 by pipeline, described header box 4 bottoms are provided with liquid outlet, liquid outlet is connected with the working fluid import of vacuum pump 3 by pipeline, described header box 4 tops are provided with overflow port, and overflow port is connected with white water chest 6 by pipeline.Realize water saving in this device working process by the following method: the gas that vacuum hydro-extraction element 1 produces, the plain boiled water mixture, vacuum gravitation by vacuum pump 3 generations, collect in the air water separator 2, in air water separator 2, separate, the gas that contains plain boiled water enters vacuum pump 3 from the air of air water separator 2 cylinder tops, its plain boiled water enters in second air water separator 7 through vacuum pump discharge opeing outlet 3 with the working fluid of vacuum pump, in second air water separator 7, separate, gas enters atmosphere by the air of second air water separator, 7 cylinder tops, and plain boiled water enters in the white water chest 6 by the leakage fluid dram of cylindrical shell bottom; Plain boiled water enters the negative pump 5 of gram from the pumping outlet of air water separator 2 cylindrical shells bottom, sends into header box 4 through restraining negative pump 5, and the plain boiled water some of header box 4 enters vacuum pump 3 as working fluid, and remainder flows in the white water chest 6.
The present invention is not limited only to above embodiment and embodiment, as long as it has adopted know-why identical with claim and thinking, also belongs to protection scope of the present invention.
Claims (4)
1. papermaking vacuum system waste water reclamation use device, comprise air water separator, vacuum pump, the negative pump of gram, header box, white water chest, pipeline, described air water separator comprises cylindrical shell, side in the cylindrical shell middle and upper part is provided with the gas-liquid import, top at cylindrical shell is provided with air, be provided with pumping outlet in the cylindrical shell bottom, air is connected with the vacuum pump import by pipeline, it is characterized in that: vacuum pump discharge opeing outlet is connected with white water chest by pipeline, the vacuum pump steam drain leads to atmosphere, the air water separator pumping outlet is connected by pipeline with the negative pump inlet of gram, the negative pump discharge of gram is connected by pipeline with header box, described header box bottom is provided with liquid outlet, liquid outlet is connected with the import of vacuum pump working fluid by pipeline, described header box top is provided with overflow port, and overflow port is connected with white water chest by pipeline.
2. papermaking vacuum system waste water reclamation use device according to claim 1, it is characterized in that: also be provided with second air water separator between vacuum pump discharge opeing outlet and the white water chest, described second air water separator comprises that cylindrical shell, the side in the cylindrical shell middle and upper part are provided with the gas-liquid import, are provided with air on the top of cylindrical shell, are provided with liquid outlet in the cylindrical shell bottom, described air communicates with atmosphere, and described liquid outlet is connected with white water chest by pipeline.
3. water-saving method that utilizes claim 1 or 2 described papermaking vacuum system waste water reclamation use devices, it is characterized in that: may further comprise the steps: gas, the plain boiled water mixture of vacuum hydro-extraction element are collected in the air water separator, separate through air water separator, the gas that contains plain boiled water enters vacuum pump from the air of air water separator cylinder top, the plain boiled water in the gas and the working fluid of vacuum pump enter in the white water chest through vacuum pump discharge opeing outlet, and the gas that enters vacuum pump enters atmosphere through the vacuum pump steam drain; The plain boiled water that air water separator is separated enters the negative pump of gram from the pumping outlet of air water separator cylindrical shell bottom, is pumped into header box through restraining to bear, and the plain boiled water some of header box enters vacuum pump as working fluid, and remainder flows in the white water chest.
4. water-saving method according to claim 3, it is characterized in that: the described gas of plain boiled water that contains is behind vacuum pump, also separate through second air water separator, gas from the air of cylinder top enter the atmosphere, plain boiled water enters the white water chest from the liquid outlet of cylindrical shell bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101076926A CN102249359A (en) | 2011-04-28 | 2011-04-28 | Waste water recycling device for paper making vacuum system and water saving method |
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| CN2011101076926A CN102249359A (en) | 2011-04-28 | 2011-04-28 | Waste water recycling device for paper making vacuum system and water saving method |
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| CN102249359A true CN102249359A (en) | 2011-11-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593464A (en) * | 2020-12-10 | 2021-04-02 | 东莞市加隆纸塑包装有限公司 | Shoe stretcher production system without emission |
| CN113107812A (en) * | 2021-04-30 | 2021-07-13 | 重庆市南川区金鑫纸业有限公司 | Vacuum system dewatering device for papermaking |
| CN113217479A (en) * | 2021-06-09 | 2021-08-06 | 苏州轰天炮光电科技有限公司 | Bath water recovery system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201333355Y (en) * | 2008-12-10 | 2009-10-28 | 杭州萧山美特轻工机械有限公司 | Gas-liquid separator |
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2011
- 2011-04-28 CN CN2011101076926A patent/CN102249359A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201333355Y (en) * | 2008-12-10 | 2009-10-28 | 杭州萧山美特轻工机械有限公司 | Gas-liquid separator |
Non-Patent Citations (3)
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| 《中国造纸》 20020630 赵生 造纸机湿部真空系统的工艺设计 , 第6期 * |
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| 赵生: "造纸机湿部真空系统的工艺设计", 《中国造纸》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593464A (en) * | 2020-12-10 | 2021-04-02 | 东莞市加隆纸塑包装有限公司 | Shoe stretcher production system without emission |
| CN113107812A (en) * | 2021-04-30 | 2021-07-13 | 重庆市南川区金鑫纸业有限公司 | Vacuum system dewatering device for papermaking |
| CN113107812B (en) * | 2021-04-30 | 2022-08-30 | 重庆市南川区金鑫纸业有限公司 | Vacuum system dewatering device for papermaking |
| CN113217479A (en) * | 2021-06-09 | 2021-08-06 | 苏州轰天炮光电科技有限公司 | Bath water recovery system |
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Application publication date: 20111123 |