CN105174334A - Evaporation and concentration system for medical wastewater - Google Patents

Evaporation and concentration system for medical wastewater Download PDF

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Publication number
CN105174334A
CN105174334A CN201510536432.9A CN201510536432A CN105174334A CN 105174334 A CN105174334 A CN 105174334A CN 201510536432 A CN201510536432 A CN 201510536432A CN 105174334 A CN105174334 A CN 105174334A
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China
Prior art keywords
separator
preheater
connects
pipeline
evaporation
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Pending
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CN201510536432.9A
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Chinese (zh)
Inventor
代超
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SHENZHEN CRYSTAL ENERGY TECH Co Ltd
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SHENZHEN CRYSTAL ENERGY TECH Co Ltd
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Priority to CN201510536432.9A priority Critical patent/CN105174334A/en
Publication of CN105174334A publication Critical patent/CN105174334A/en
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Abstract

The present invention discloses an evaporation and concentration system for medical wastewater. The system comprises a preheating device, a distillation apparatus, an evaporation device and a crystallization separation device. The preheating device comprises a buffer adjustment tank, a pre-heater and a feeding pump. The distillation apparatus comprises a distillation column. The evaporation device comprises a heat exchanger, a separator, a circulation pump, a steam compressor and a cooling water tank. The crystallization separation device comprises a crystallizer, a centrifugal machine device and a discharging pump. According to the evaporation and concentration system for medical wastewater provided by the present invention, heating vapor recycle is realized through self circulation between the heat exchanger and the separator, so that a conventional medical wastewater evaporation and concentration process is replaced, the energy consumption is reduced, and the wastewater treatment efficiency is improved.

Description

A kind of evaporation concentration system of pharmaceutical wastewater
Technical field
The invention belongs to technical field of chemical, relate to a kind of condensing crystal system of solution, be specifically related to a kind of evaporation concentration system of pharmaceutical wastewater.
Background technology
Pharmaceutical industries waste component is complicated, usually containing carnallite and organic content high, quite serious to the pollution of environment, and treatment capacity is large.Pharmaceutical wastewater process adopts evaporating and concentrating process usually, and steam consumption is high, and steam price especially is in recent years high gradually, causes the energy consumption cost height enterprise of this kind of evaporative process, operation cost of enterprises is increased severely.
Summary of the invention
In order to overcome the technological deficiency of traditional medicine waste water evaporating and concentrating process, realizing reducing energy consumption, cost-saving object, the invention provides a kind of evaporation concentration system of pharmaceutical wastewater.This novel system instead of traditional steam-heated evaporation and crystallization mode, for pharmaceutical wastewater treating processes reduce costs, save energy opens a new way.
Pharmaceutical wastewater evaporation concentration system of the present invention, comprises primary heater unit, water distilling apparatus, evaporation unit and Crystallization Separation device.
Described primary heater unit comprises dash adjustment tank and preheater, and dash adjustment tank is connected with preheater by pipeline, and fresh feed pump installed by the pipeline between dash adjustment tank and preheater.
Described water distilling apparatus comprises distillation tower, and the material inlet of distillation tower connects the discharge port of preheater, and the material outlet of distillation tower connects the interchanger of evaporation unit.
Described evaporation unit comprises interchanger, separator, recycle pump, vapour compressor and chilled water tank, the feed end of interchanger connects the material outlet of distillation tower, interchanger, separator form loop line by pipeline communication, on the loop line that recycle pump is arranged on interchanger, separator is formed, the vapour outlet of separator connects the inlet mouth of vapour compressor, the air outlet of vapour compressor connects interchanger, and the condensation-water drain of interchanger connects chilled water tank.
Described Crystallization Separation device comprises crystallizer and centrifuge apparatus, and crystallizer and centrifuge apparatus are connected to the discharge end of separator in turn by discharging pump.
As the optimization of pharmaceutical wastewater evaporation concentration system, described chilled water tank is connected with preheater by pipeline, distilled water pump installed by pipeline between chilled water tank and preheater, the feed-water end of distilled water pump connects the cooling water outlet of chilled water tank by pipeline, the water side of distilled water pump connects preheater by pipeline.
As the optimization of pharmaceutical wastewater evaporation concentration system, described centrifuge apparatus connects separator by pipeline, the pipeline between centrifuge apparatus and separator is installed mother liquor pump.
As the optimization of pharmaceutical wastewater evaporation concentration system, described preheater is provided with condensation-water drain, and condensation-water drain is connected with the rising pipe for discharging water of condensation.
As the optimization of pharmaceutical wastewater evaporation concentration system, described distillation tower is arranged for reclaiming the organic organism recovery port of light constituent in pharmaceutical wastewater.
Compared with traditional medicine waste water evaporation concentration equipment and technique, beneficial effect of the present invention or advantage are mainly reflected in:
(1) pharmaceutical wastewater evaporation concentration system of the present invention instead of traditional steam-heated evaporation and crystallization mode, adopt the secondary steam that compressor compresses separator gives off, use the secondary steam after compression as heating steam, and the circulation of equipment self is achieved by arranging loop, accomplish without the need to raw steam heating, without the need to condensing equipment, only need a small amount of electric energy just can reach the effect of good evaporation, thus be reduce costs in pharmaceutical wastewater treating processes, save energy opens a new way.
(2) pharmaceutical wastewater evaporation concentration system of the present invention, is divided into distillation and concentration and evaporative crystallization two benches by split by evaporative process, improves stable equipment operation, is conducive to the automatic control of equipment.
Below with reference to drawings and Examples, the present invention is elaborated further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of pharmaceutical wastewater evaporation concentration system of the present invention.
Description of reference numerals: 1, dash adjustment tank; 2, fresh feed pump; 3, preheater; 4, distillation tower; 5, interchanger; 6, separator; 7, vapour compressor; 8, recycle pump; 9, chilled water tank; 10, distilled water pump; 11, discharging pump; 12, crystallizer; 13, centrifuge apparatus; 14, mother liquor pump.
Embodiment
As shown in Figure 1, this gives a kind of evaporation concentration system of pharmaceutical wastewater, it comprises primary heater unit, water distilling apparatus, evaporation unit and Crystallization Separation device.
Described primary heater unit comprises dash adjustment tank 1, preheater 3, and dash adjustment tank 1 is connected by one section of carrier pipe with preheater 3, described carrier pipe is provided with fresh feed pump 2.
Described water distilling apparatus comprises distillation tower 4, and the material inlet of distillation tower 4 connects the discharge port of preheater 3, and the material outlet of distillation tower 4 connects the interchanger 5 of evaporation unit.
Described evaporation unit comprises interchanger 5, separator 6, recycle pump 8, vapour compressor 7 and chilled water tank 9.The feed end pipeline of described interchanger 5 connects the discharge end of distillation tower 4.Separator 6 and interchanger 5 are connected to form loop line by pipeline, described loop line are provided with recycle pump 8.Concentrated solution after separator 6 is separated to be entered by recycle pump 8 in interchanger 5 after heating, then enters into separator 6 and isolate concentrated solution, and concentrated solution is circulated between interchanger 5 and separator 6 by loop line.The vapour outlet of described separator 6 connects the inlet mouth of vapour compressor 7 by one section of pneumatic tube, the air outlet of vapour compressor 7 is communicated with interchanger 5, and the condensation-water drain of interchanger 5 connects chilled water tank 9 by hydraulic pipe.
Described Crystallization Separation device comprises crystallizer 12, centrifuge apparatus 13, and crystallizer 12 is connected to the discharge end of separator 6 by a discharging pump 11.
Adopt the technique of the system condensing crystal pharmaceutical wastewater described in the present embodiment as follows:
Temperature in dash adjustment tank 1 is room temperature, and pharmaceutical wastewater stoste pumps into preheater 3 through fresh feed pump 2, and produces heat exchange with water coolant in preheater 3, and after preheater 3, temperature rises.Pharmaceutical wastewater solution after preheating enters into distillation tower 4 and distills, after isolating lightweight organism, heat material enters in interchanger 5, circulated in interchanger 5 and separator 6 by recycle pump 8, with heating steam heat exchange in interchanger 5, the pharmaceutical wastewater solution absorbing heat enters flash distillation in separator 6, and isolate secondary steam and concentrated solution, secondary steam enters vapour compressor 7 from separator 6 vapour outlet, and after the adiabatic compression of vapour compressor 7, temperature and pressure gets a promotion.Secondary steam after increasing temperature and pressure enters interchanger 5 and the heat exchange of pharmaceutical wastewater solution as heating steam, is condensed into water, and enters chilled water tank 9 after heat release.The pharmaceutical wastewater solution absorbing heat enters flash distillation in separator 6 and isolates secondary steam and concentrated solution, pump into crystallisation by cooling in crystallizer 12 through discharging pump 11 during pharmaceutical wastewater strong solution predetermined concentration, then isolate pharmaceutical wastewater and crystal through crystallizer 12 and centrifuge apparatus 13.Described preheater 3 is provided with condensation-water drain, and condensation-water drain is connected with the rising pipe for discharging water of condensation, and from preheating, 3 last water coolants out can reuse or qualified discharge.
The preferred scheme of one as the present embodiment, described chilled water tank 9 is provided with cooling water outlet, and the feed-water end of a distilled water pump 10 is connected to the cooling water outlet of chilled water tank 9 by hydraulic pipe, and the water side of distilled water pump 10 is connected on preheater 3.Because water out also has certain temperature from chilled water tank 9, if directly discharge can cause the waste of thermal source, the water in chilled water tank 9 is incorporated in preheater 3, as the thermal source of preheater 3, thus the object making full use of heat can be reached.
The preferred scheme of one as the present embodiment, distillation tower 4 opening for feed of described water distilling apparatus connects preheater 3 discharge port, and the discharge port of distillation tower 4 connects the feed pipe of interchanger 5.In addition, distillation tower 4 is arranged for reclaiming the organic organism recovery port of light constituent in pharmaceutical wastewater.By the distillation of distillation tower 4, light constituent organism can be isolated recycle from material, the effluent characteristics of evaporation unit can be improved again.
The preferred scheme of one as the present embodiment, described centrifuge apparatus 13 and be provided with loop between separator 6, loop is provided with mother liquor pump 14.The mother liquor obtained after whizzer is sent in separator 6 through mother liquor pump 14 and continues circular treatment.Mother liquor after separation is saturated pharmaceutical wastewater solution, direct discharge may cause pharmaceutical wastewater to reclaim not exclusively, discharge after stain environment, therefore after designing second servo loop, mother liquor enters into separator 6 by second servo loop, and then between separator 6 and interchanger 5, circulation is concentrated, to reach after predetermined concentration Crystallization Separation again, circulation like this, finally realizes the process completely of pharmaceutical wastewater.
The preferred scheme of one as the present embodiment, the condensation-water drain of described preheater 3 is connected with rising pipe, and the water of condensation eventually passed after preheater 3 heat exchange is discharged through rising pipe.
The pharmaceutical wastewater evaporation concentration system that the present embodiment relates to is by the self-circulation between interchanger and separator, adopt the secondary steam that compressor compresses separator gives off, the secondary steam after compression is used to use as heating steam, realize the object of evaporation concentration, thus save energy, reduce costs, enhance productivity.By sectional type evaporative process, evaporative process is divided into distillation and evaporative crystallization again, guarantees efficient stable in system cloud gray model.
Further describe invention has been above, but the present invention is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept in conjunction with the embodiments.

Claims (5)

1. an evaporation concentration system for pharmaceutical wastewater, is characterized in that, comprises primary heater unit, water distilling apparatus, evaporation unit and Crystallization Separation device;
Described primary heater unit comprises dash adjustment tank and preheater, and dash adjustment tank is connected with preheater by pipeline, and fresh feed pump installed by the pipeline between dash adjustment tank and preheater;
Described water distilling apparatus comprises distillation tower, and the material inlet of distillation tower connects the discharge port of preheater, and the material outlet of distillation tower connects the interchanger of evaporation unit;
Described evaporation unit comprises interchanger, separator, recycle pump, vapour compressor and chilled water tank, the feed end of interchanger connects the material outlet of distillation tower, interchanger, separator form loop line by pipeline communication, on the loop line that recycle pump is arranged on interchanger, separator is formed, the vapour outlet of separator connects the inlet mouth of vapour compressor, the air outlet of vapour compressor connects interchanger, and the condensation-water drain of interchanger connects chilled water tank;
Described Crystallization Separation device comprises crystallizer and centrifuge apparatus, and crystallizer and centrifuge apparatus are connected to the discharge end of separator in turn by discharging pump.
2. the evaporation concentration system of pharmaceutical wastewater according to claim 1, it is characterized in that, described chilled water tank is connected with preheater by pipeline, distilled water pump installed by pipeline between chilled water tank and preheater, the feed-water end of distilled water pump connects the cooling water outlet of chilled water tank by pipeline, the water side of distilled water pump connects preheater by pipeline.
3. the evaporation concentration system of pharmaceutical wastewater according to claim 1, is characterized in that, described centrifuge apparatus connects separator by pipeline, the pipeline between centrifuge apparatus and separator is installed mother liquor pump.
4. the evaporation concentration system of pharmaceutical wastewater according to claim 1 and 2, is characterized in that, described preheater is provided with condensation-water drain, and condensation-water drain is connected with the rising pipe for discharging water of condensation.
5. the evaporation concentration system of pharmaceutical wastewater according to claim 1, is characterized in that, described distillation tower is arranged for reclaiming the organic organism recovery port of light constituent in pharmaceutical wastewater.
CN201510536432.9A 2015-08-28 2015-08-28 Evaporation and concentration system for medical wastewater Pending CN105174334A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107324423A (en) * 2017-08-09 2017-11-07 湖南华腾制药有限公司 A kind of pharmacy waste water evaporation equipment
CN107381689A (en) * 2017-08-23 2017-11-24 湖南华腾制药有限公司 A kind of medicine intermediate synthetic reaction sewage treatment equipment
CN107935293A (en) * 2018-01-08 2018-04-20 山东特保罗环保节能科技有限公司 A kind of high-salt wastewater processing equipment
CN108840509A (en) * 2018-09-12 2018-11-20 广州市迈源科技有限公司 A kind of cephalo waste water treatment system and the processing method using the system
CN109224484A (en) * 2018-11-06 2019-01-18 中盐工程技术研究院有限公司 A kind of medical salt mechanical compression type thermo-compression evaporation concentration or evaporated crystallization device
CN110817996A (en) * 2019-11-27 2020-02-21 营口晨光植物提取设备有限公司 Refined oil type wastewater re-steaming recycling device system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395946A (en) * 2002-12-05 2004-06-09 Thomas Altmann Extracting sodium chloride from seawater, using nanofiltration
CN103539299A (en) * 2012-07-10 2014-01-29 南京大学 Process for recycling wastewater containing low boiling-point organism such as formaldehyde and high-concentration inorganic salt
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution
CN204981212U (en) * 2015-08-28 2016-01-20 深圳市捷晶能源科技有限公司 Evaporative concentration system of medicine waste water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395946A (en) * 2002-12-05 2004-06-09 Thomas Altmann Extracting sodium chloride from seawater, using nanofiltration
CN103539299A (en) * 2012-07-10 2014-01-29 南京大学 Process for recycling wastewater containing low boiling-point organism such as formaldehyde and high-concentration inorganic salt
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution
CN204981212U (en) * 2015-08-28 2016-01-20 深圳市捷晶能源科技有限公司 Evaporative concentration system of medicine waste water

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107324423A (en) * 2017-08-09 2017-11-07 湖南华腾制药有限公司 A kind of pharmacy waste water evaporation equipment
CN107381689A (en) * 2017-08-23 2017-11-24 湖南华腾制药有限公司 A kind of medicine intermediate synthetic reaction sewage treatment equipment
CN107935293A (en) * 2018-01-08 2018-04-20 山东特保罗环保节能科技有限公司 A kind of high-salt wastewater processing equipment
CN108840509A (en) * 2018-09-12 2018-11-20 广州市迈源科技有限公司 A kind of cephalo waste water treatment system and the processing method using the system
CN109224484A (en) * 2018-11-06 2019-01-18 中盐工程技术研究院有限公司 A kind of medical salt mechanical compression type thermo-compression evaporation concentration or evaporated crystallization device
CN110817996A (en) * 2019-11-27 2020-02-21 营口晨光植物提取设备有限公司 Refined oil type wastewater re-steaming recycling device system and method

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