CN205473157U - Acrylonitrile effluent treatment plant - Google Patents
Acrylonitrile effluent treatment plant Download PDFInfo
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- CN205473157U CN205473157U CN201620220324.0U CN201620220324U CN205473157U CN 205473157 U CN205473157 U CN 205473157U CN 201620220324 U CN201620220324 U CN 201620220324U CN 205473157 U CN205473157 U CN 205473157U
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- storage tank
- waste water
- triple effect
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- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 157
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229920000642 polymer Polymers 0.000 claims abstract description 54
- 238000000926 separation method Methods 0.000 claims abstract description 54
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 33
- 238000002425 crystallisation Methods 0.000 claims abstract description 29
- 230000008025 crystallization Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 230000008020 evaporation Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 48
- -1 acrylic nitrile Chemical class 0.000 claims description 31
- 239000002562 thickening agent Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 230000008719 thickening Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 238000003672 processing method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Cyclones (AREA)
Abstract
The utility model provides an acrylonitrile effluent treatment plant, its structure includes: filter, storage tank, comdenstion water pre -heater, consecutive triple effect following current evaporation crystallization device, hydrocyclone, stiff ware, centrifuge, desiccator and the polymer storage tank that connects. Come from the acrylonitrile waste water of acrylonitrile production line and get rid of some heavy metal ion and organic matter through the filter, preheat through the comdenstion water pre -heater again to evaporating the crystallization device through the triple effect following current in proper order and carrying out evaporative concentration, the evaporation crystallization material that obtains gets into the centrifuge separation after passing through hydrocyclone and the thickening of stiff ware again, carries out the drying to the wet product that obtains at last. Store in the polymer storage tank is carried to the polymer export exhaust polymer of triple effect following current evaporation crystallization device at this in -process to carry the polymer by polymer extraction pump and carry out incineration disposal to the external world. The utility model provides acrylonitrile waste water can be handled in succession, steadily to the high quality of crystallization product.
Description
Technical field
This utility model relates to a kind of device for processing the waste water that chemical process produces, specifically a kind of acrylic nitrile waste water processing means.
Background technology
Acrylonitrile is a kind of important organic synthesis monomer, is the important industrial chemicals of three big synthetic materials.In the production process of acrylonitrile, can produce substantial amounts of industrial wastewater, acrylic nitrile waste water is except water quality organic classes of compounds complicated, contained is various, in addition to COD concentration height, possibly together with a small amount of acrylonitrile (AN) and oligomer thereof.Therefore, acrylic nitrile waste water not only has certain toxicity, and its viscosity is big, be not readily separated.For the acrylic nitrile waste water of low concentration, the problem that presently, there are is that water outlet COD is the most up to standard, and AN is difficult to biochemical degradation, owing to molecular weight is higher, uses the extremely difficult removal of conventional biological treatment.
The processing method of acrylic nitrile waste water has a lot, and wherein catalytic wet oxidation-biochemical treatment process, pressurized hydrolysis-biochemical treatment process, burning method are extensively applied in China, but these conventional production processing methods all also exist certain defect.
Although catalytic wet oxidation-biochemical treatment process is largely effective for removing cyanide, but this method requires that to equipment material height, investment are big, and after process, heavy metal and ammonia-nitrogen content can be the highest.
Although pressurizing hydrolysis investment greatly reduces relatively, but needs to consume substantial amounts of fresh water, final outflow water salinity is high, it may appear that secondary soda acid environmental pollution, water outlet ammonia nitrogen is difficult to up to standard.
Burning method is a kind of eco-friendly processing method, substantially can realize the zero-emission of pollutant, but the fuel oil mass burning consumption is the most surprising, and cost for wastewater treatment is higher, and environment can be exerted an adverse impact by the directly emptying of the waste gas after burning.
Utility model content
The purpose of this utility model is just to provide a kind of acrylic nitrile waste water processing means, to solve the problem that poor processing effect and processing procedure produce secondary pollution present in prior art.
This utility model is achieved in that
A kind of acrylic nitrile waste water processing means, including:
Filter, for carrying out adsorption filtration to acrylic nitrile waste water；
Storage tank, is connected with the discharge end of described filter, for storing the acrylic nitrile waste water from filter；
Condensed water preheater, its feed end is connected with the discharge end of described storage tank, for preheating the acrylic nitrile waste water from storage tank；
Being sequentially connected the system of three-effect downstream evaporator crystallization apparatus connect, its feed end is connected with the discharge end of described condensed water preheater, for the acrylic nitrile waste water from described condensed water preheater is carried out following current evaporation, obtains evaporative crystallization material；
Cyclone hydraulic separators, is connected with the discharge end of described system of three-effect downstream evaporator crystallization apparatus, for by evaporative crystallization material enrichment；
Thickener, is connected with the discharge end of described cyclone hydraulic separators, for by the material concentration from cyclone hydraulic separators；
Centrifuge, is connected with the discharge end of described thickener, for by the material centrifugation from thickener, obtains solid wet feed；
Drying machine, is connected with the discharge end of described centrifuge, for being dried by the solid wet feed from centrifuge；And
Polymer storage tank, is connected with the polymer exit of described system of three-effect downstream evaporator crystallization apparatus, for collecting by the isolated polymer of system of three-effect downstream evaporator crystallization apparatus.
Described system of three-effect downstream evaporator crystallization apparatus includes an effect heating chamber, an effect separation chamber, two effect heating chambers, two effect separation chambers and triple effect heating chamber and triple effect separation chamber；
Imitating described one and install an effect axial-flow pump on the connecting pipeline between heating chamber bottom and an effect bottom, separation chamber, connecting at described one steam (vapor) outlet imitating separation chamber has an effect demister, and connecting at the described one concentration material outlet imitating separation chamber has an effect separator；The condensation-water drain of a described effect heating chamber is connected with the condensed water import of described condensed water preheater；
Imitating described two and install two effect axial-flow pumps on the connecting pipeline between heating chamber bottom and two effect bottoms, separation chamber, connecting at described two steam (vapor) outlets imitating separation chamber has two effect demisters, and connecting at the described two concentration material outlets imitating separation chamber has two effect separators；The steam inlet of described two effect heating chambers is connected with the steam (vapor) outlet of a described effect demister；
Installing triple effect axial-flow pump on connecting pipeline between described triple effect heating chamber bottom and bottom, triple effect separation chamber, the steam (vapor) outlet in described triple effect separation chamber connects triple effect demister, and the concentration material outlet in described triple effect separation chamber connects triple effect separator；The steam inlet of described triple effect heating chamber is connected with the steam (vapor) outlet of described two effect demisters, the condensed water import of described triple effect heating chamber is connected with the condensation-water drain of described two effect heating chambers, and the steam (vapor) outlet of described triple effect demister is connected with indirect condenser；
A described effect separator, described two effect separators are connected with described polymer storage tank respectively with the polymer exit of described triple effect separator three.
This utility model also includes that condensate water pot, the condensation-water drain of described indirect condenser are connected with described condensate water pot respectively with the condensation-water drain of described triple effect heating chamber.
This utility model also includes polymer produced pump, is arranged on the discharge nozzle of described polymer storage tank, for the polymer in polymer storage tank is delivered to extraneous burning disposal.
It is provided with agitating device and attemperator in described polymer storage tank.
Described drying machine is that air-flow adds conduction type drying machine.
This utility model also includes that feeding pump, described feeding pump are arranged on the pipeline between described storage tank and described condensed water preheater.
This utility model also includes that discharging pump, described discharging pump are arranged on the pipeline between described triple effect separation chamber and described cyclone hydraulic separators.
Acrylic nitrile waste water from acrylonitrile process line removes part heavy metal ion and Organic substance through filter, the most condensed water preheater preheats, and sequentially pass through system of three-effect downstream evaporator crystallization apparatus be evaporated concentrate, the evaporative crystallization material obtained is again after cyclone hydraulic separators and thickener thickening, entrance centrifuge separates, and is finally dried the wet product obtained.The polymer discharged from the polymer exit of system of three-effect downstream evaporator crystallization apparatus in the process stores in being transported to polymer storage tank, and by polymer produced pump, polymer is delivered to the external world and carries out burning disposal.
This utility model is by being repeatedly removed the Organic substance in acrylic nitrile waste water, not only substantially increase the quality of crystalline product, reach the purpose of the fully clear production of recovery and whole device of polymer in waste water, the operational efficiency of whole system can also be improved, reduce the maintenance expense of equipment to a certain extent.This utility model uses multistage evaporation and condensed water preheating to reduce the consumption of raw steam to a great extent, improves the heat utilization efficiency of system, has reached the purpose of energy-saving and emission-reduction.
This utility model decreases the probability of equipment, line clogging, it is achieved that serialization steady production.The airtight operation of whole device of the present utility model, the no pollution achieving air discharges, and reduces the COD content of condensed water to a great extent, and raw steam, raw steam condensate (SC), recirculated water three divide Cheng Yunhang, ensure that no cross contamination between water, vapour, it is achieved that sewage zero-discharge.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, filter, 2, storage tank, 3, feeding pump, 4, condensed water preheater, 5, one effect heating chamber, 6, one effect separation chamber, 7, one effect demister, 8, one effect separator, 9, one effect axial-flow pump, 10, two effect heating chambers, 11, two effect separation chambers, 12, two effect demisters, 13, two effect separators, 14, two effect axial-flow pumps, 15, triple effect heating chamber, 16, triple effect separation chamber, 17, triple effect demister, 18, triple effect separator, 19, triple effect axial-flow pump, 20, indirect condenser, 21, discharging pump, 22, condensate water pot, 23, condensate pump, 24, cyclone hydraulic separators, 25, thickener, 26, polymer storage tank, 27, polymer produced pump, 28, centrifuge, 29, drying machine.
Detailed description of the invention
As it is shown in figure 1, this utility model includes filter 1, storage tank 2, condensed water preheater 4, system of three-effect downstream evaporator crystallization apparatus, cyclone hydraulic separators 24, thickener 25, centrifuge 28 and the drying machine 29 being sequentially connected by pipeline.
The inside of filter 1 is provided with adsorbent, for adsorbing the heavy metal ion in acrylic nitrile waste water and partial organic substances, after absorption is saturated, utilizes compressed air or other solvent to process, can Reusability.
The charging aperture of storage tank 2 is connected with the discharge end of filter 1, for storing the acrylic nitrile waste water after filter 1 adsorption filtration.
The charging aperture of condensed water preheater 4 is connected by pipeline with the discharging opening of storage tank 2, is provided with feeding pump 3 on pipeline, and the acrylic nitrile waste water in storage tank 2 is delivered in condensed water preheater 4 by feeding pump 3.Condensed water preheater 4 is by preheating entering material therein from the condensed water of system of three-effect downstream evaporator crystallization apparatus, taking full advantage of the heat of condensed water.
Waste water after preheating enters and is sequentially connected the system of three-effect downstream evaporator crystallization apparatus connect, system of three-effect downstream evaporator crystallization apparatus includes being sequentially connected an effect crystallizing evaporator, two effect crystallizing evaporator and the triple effect evaporation crystallizers connect, by pressure differential punishment in advance between each effect crystallizing evaporator, the probability of material conveying blocking between equipment investment and effect can be reduced.
One effect crystallizing evaporator includes effect heating chamber 5 and an effect separation chamber 6, the charging aperture of one effect heating chamber 5 is connected with the discharging opening of condensed water preheater 4, the condensation-water drain of one effect heating chamber 5 is connected with the condensed water import of condensed water preheater 4, and the connecting pipeline between effect heating chamber 5 bottom and an effect bottom, separation chamber 6 is installed an effect axial-flow pump 9.Connecting in an effect separation chamber 6 and have effect demister 7 and an effect separator 8, wherein, the inlet end of an effect demister 7 and the indirect steam outlet of an effect separation chamber 6 are connected, and the charging aperture of an effect separator 8 and the concentration material outlet of an effect separation chamber 6 are connected.
Two effect crystallizing evaporators include two effect heating chamber 10 and two effect separation chambers 11, and the connecting pipeline between two effect heating chamber 10 bottoms and two effect bottoms, separation chamber 11 is installed two effect axial-flow pumps 14.Two effect separation chambers 11 connect and has two effect demister 12 and two effect separators 13, wherein, the inlet end of two effect demisters 12 and the indirect steam outlet of two effect separation chambers 11 are connected, and the charging aperture of two effect separators 13 and the concentration material outlet of two effect separation chambers 11 are connected.
Triple effect evaporation crystallizer includes triple effect heating chamber 15 and triple effect separation chamber 16, the discharging opening of triple effect separation chamber 16 is connected with the charging aperture of cyclone hydraulic separators 24, and the connecting pipeline between triple effect heating chamber 15 bottom and bottom, triple effect separation chamber 16 is installed triple effect axial-flow pump 19.Triple effect separation chamber 16 connects and has triple effect demister 17 and triple effect separator 18, wherein, the inlet end of triple effect demister 17 exports with the indirect steam of triple effect separation chamber 16 and is connected, and the charging aperture of triple effect separator 18 is connected with the concentration material outlet of triple effect separation chamber 16.
Between each effect crystallizing evaporator, the condensed water of an effect heating chamber 5 returns condensed water preheater 4；The indirect steam of one effect separation chamber 6 delivers to two effect heating chambers 10 after an effect demister 7；Indirect steam in two effect separation chambers 11 delivers to triple effect heating chamber 15 after two effect demisters 12, and the condensed water of two effect heating chambers 10 enters triple effect heating chamber 15；The indirect steam of triple effect separation chamber 16 enters indirect condenser 20 after triple effect demister 17；One effect separator 8, two effect separator 13 is connected with polymer storage tank 26 respectively with the polymer exit of triple effect separator 18 three.
In each effect crystallizing evaporator, axial-flow pump is in order to improve circulation power, it is achieved feed liquid forced circulation between heating chamber and separation chamber.The big flow of axial-flow pump can guarantee that concentration solution has higher flow velocity in the heat exchanger tube of heating chamber, even if there being mass crystallization separate out or have number of polymers to separate out in evaporating concentration process, it also is able to ensure that material is less scaling in heating chamber heat exchanger tube, scab, it is ensured that continuous, the stable operation of device.
In each effect crystallizing evaporator, demister can effectively intercept from the mist entrained by the indirect steam of separation chamber, and mist is back in separation chamber after collecting in demister cylinder.Thus it can be prevented that indirect steam to enter after next stage heating chamber to occur in the outer accumulation of heating chamber tube bank, fouling, the phenomenon that scabs, thus extend the cleaning frequency of heating chamber, the heat exchange efficiency of raising heating chamber.Meanwhile, demister decreases the COD content in condensed water the most to a great extent.
In each effect crystallizing evaporator, separator is in order to separate the oil reservoir (i.e. polymer) on liquid phase surface in separation chamber, to reduce the polymer content entered in next stage crystallizing evaporator, reduce the polymer accumulation at low-temperature space, and then reduce the polymer impact on later product quality.From each effect separator, isolated polymer is pooled to polymer storage tank 26 from polymer discharge line by liquid level difference, attemperator and agitating device it is provided with in polymer storage tank 26, to ensure that polymer is heated evenly in tank and can keep constant temperature, it is to avoid due to temperature relatively low and cause polymer viscosity to increase, the problem of difficult conveying.The discharge nozzle of polymer storage tank 26 is provided with polymer produced pump 27, in order to polymer is delivered to the external world and carries out burning disposal.
The discharge pipe of triple effect separation chamber 16 is provided with discharging pump 21, for the material containing crystalline polypropylene nitrile after evaporation and concentration, remove impurity is delivered to cyclone hydraulic separators 24, the further concentration of thickener 25 sent in cyclone hydraulic separators 24 by material after enrichment, it is then fed into centrifuge 28 to be centrifuged separating, obtains solid wet feed.
Solid wet feed is sent in drying machine 29 and is dried process, drying machine 29 adds conduction type drying machine for air-flow, owing to acrylic nitrile waste water containing low polymer, although cutting out partial polymer in evaporation process, but still have residual, during crystallization is formed, the polymer of residual can be coated with at crystal surface, the viscosity of polymer makes crystalline particle unite, and causes uneven drying.Using air-flow to add conduction type drying machine and can solve the problems referred to above, the crystalline particle united can be broken up in dry run by this drying machine so that it is keeps uniform, loose state in basin, so that it is heated evenly, is dried thoroughly.
This utility model is additionally provided with indirect condenser 20 and condensate water pot 22, and indirect condenser 20 is connected with the steam (vapor) outlet of triple effect demister 17, for being condensed, in the water condensate storage obtained after condensation to condensate water pot 22 by the steam from triple effect demister 17.The condensation-water drain of triple effect heating chamber 15 is also connected with condensate water pot 22, in order to by the condensing hot air furnace in system of three-effect downstream evaporator crystallization apparatus to condensate water pot 22, the outlet conduit of condensate water pot 22 is provided with condensate pump 23, for the condensed water in tank being delivered in sewage-treatment plant recycling.
Claims (8)
1. an acrylic nitrile waste water processing means, it is characterised in that including:
Filter, for carrying out adsorption filtration to acrylic nitrile waste water；
Storage tank, is connected with the discharge end of described filter, for storing the acrylic nitrile waste water from filter；
Condensed water preheater, its feed end is connected with the discharge end of described storage tank, for preheating the acrylic nitrile waste water from storage tank；
Being sequentially connected the system of three-effect downstream evaporator crystallization apparatus connect, its feed end is connected with the discharge end of described condensed water preheater, for the acrylic nitrile waste water from described condensed water preheater is carried out following current evaporation, obtains evaporative crystallization material；
Cyclone hydraulic separators, is connected with the discharge end of described system of three-effect downstream evaporator crystallization apparatus, for by evaporative crystallization material enrichment；
Thickener, is connected with the discharge end of described cyclone hydraulic separators, for by the material concentration from cyclone hydraulic separators；
Centrifuge, is connected with the discharge end of described thickener, for by the material centrifugation from thickener, obtains solid wet feed；
Drying machine, is connected with the discharge end of described centrifuge, for being dried by the solid wet feed from centrifuge；And
Polymer storage tank, is connected with the polymer exit of described system of three-effect downstream evaporator crystallization apparatus, for collecting by the isolated polymer of system of three-effect downstream evaporator crystallization apparatus.
Acrylic nitrile waste water processing means the most according to claim 1, is characterized in that, described system of three-effect downstream evaporator crystallization apparatus includes an effect heating chamber, an effect separation chamber, two effect heating chambers, two effect separation chambers and triple effect heating chamber and triple effect separation chamber；
Imitating described one and install an effect axial-flow pump on the connecting pipeline between heating chamber bottom and an effect bottom, separation chamber, connecting at described one steam (vapor) outlet imitating separation chamber has an effect demister, and connecting at the described one concentration material outlet imitating separation chamber has an effect separator；The condensation-water drain of a described effect heating chamber is connected with the condensed water import of described condensed water preheater；
Imitating described two and install two effect axial-flow pumps on the connecting pipeline between heating chamber bottom and two effect bottoms, separation chamber, connecting at described two steam (vapor) outlets imitating separation chamber has two effect demisters, and connecting at the described two concentration material outlets imitating separation chamber has two effect separators；The steam inlet of described two effect heating chambers is connected with the steam (vapor) outlet of a described effect demister；
Installing triple effect axial-flow pump on connecting pipeline between described triple effect heating chamber bottom and bottom, triple effect separation chamber, the steam (vapor) outlet in described triple effect separation chamber connects triple effect demister, and the concentration material outlet in described triple effect separation chamber connects triple effect separator；The steam inlet of described triple effect heating chamber is connected with the steam (vapor) outlet of described two effect demisters, the condensed water import of described triple effect heating chamber is connected with the condensation-water drain of described two effect heating chambers, and the steam (vapor) outlet of described triple effect demister is connected with indirect condenser；
A described effect separator, described two effect separators are connected with described polymer storage tank respectively with the polymer exit of described triple effect separator three.
Acrylic nitrile waste water processing means the most according to claim 2, is characterized in that, also includes that condensate water pot, the condensation-water drain of described indirect condenser are connected with described condensate water pot respectively with the condensation-water drain of described triple effect heating chamber.
Acrylic nitrile waste water processing means the most according to claim 1, is characterized in that, also includes polymer produced pump, is arranged on the discharge nozzle of described polymer storage tank, for the polymer in polymer storage tank is delivered to extraneous burning disposal.
Acrylic nitrile waste water processing means the most according to claim 1, is characterized in that, is provided with agitating device and attemperator in described polymer storage tank.
Acrylic nitrile waste water processing means the most according to claim 1, is characterized in that, described drying machine is that air-flow adds conduction type drying machine.
Acrylic nitrile waste water processing means the most according to claim 1, is characterized in that, also includes that feeding pump, described feeding pump are arranged on the pipeline between described storage tank and described condensed water preheater.
Acrylic nitrile waste water processing means the most according to claim 2, is characterized in that, also includes that discharging pump, described discharging pump are arranged on the pipeline between described triple effect separation chamber and described cyclone hydraulic separators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220324.0U CN205473157U (en) | 2016-03-22 | 2016-03-22 | Acrylonitrile effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220324.0U CN205473157U (en) | 2016-03-22 | 2016-03-22 | Acrylonitrile effluent treatment plant |
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| Publication Number | Publication Date |
|---|---|
| CN205473157U true CN205473157U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620220324.0U Expired - Fee Related CN205473157U (en) | 2016-03-22 | 2016-03-22 | Acrylonitrile effluent treatment plant |
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| CN (1) | CN205473157U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325227A (en) * | 2018-04-10 | 2018-07-27 | 上海优华系统集成技术股份有限公司 | A kind of system and its processing method to heat recovery and utilization in multi-effect evaporation system |
| CN112174413A (en) * | 2020-09-01 | 2021-01-05 | 上海易湃富得环保科技有限公司 | Method for realizing zero discharge of MVR evaporation mother liquor |
| CN114044597A (en) * | 2021-10-12 | 2022-02-15 | 铜陵有色金属集团股份有限公司 | Sodium sulfate evaporation crystallization device and use method thereof |
| CN114273098A (en) * | 2021-12-29 | 2022-04-05 | 上海赛科石油化工有限责任公司 | System and method for separating polymer in acrylonitrile production process |
-
2016
- 2016-03-22 CN CN201620220324.0U patent/CN205473157U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325227A (en) * | 2018-04-10 | 2018-07-27 | 上海优华系统集成技术股份有限公司 | A kind of system and its processing method to heat recovery and utilization in multi-effect evaporation system |
| CN108325227B (en) * | 2018-04-10 | 2024-04-16 | 上海优华系统集成技术股份有限公司 | System for recycling heat in multi-effect evaporation system and treatment method thereof |
| CN112174413A (en) * | 2020-09-01 | 2021-01-05 | 上海易湃富得环保科技有限公司 | Method for realizing zero discharge of MVR evaporation mother liquor |
| CN114044597A (en) * | 2021-10-12 | 2022-02-15 | 铜陵有色金属集团股份有限公司 | Sodium sulfate evaporation crystallization device and use method thereof |
| CN114273098A (en) * | 2021-12-29 | 2022-04-05 | 上海赛科石油化工有限责任公司 | System and method for separating polymer in acrylonitrile production process |
| CN114273098B (en) * | 2021-12-29 | 2024-04-26 | 上海赛科石油化工有限责任公司 | System and method for separating polymer in acrylonitrile production flow |
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Address after: 050000 10-1201, Fangda Science Park, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Dingwei Chemical Equipment Engineering Co.,Ltd. Address before: 050000 3rd floor, building 6, Fangda science and Technology Park, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG DINGWEI CHEMICAL EQUIPMENT ENGINEERING Co.,Ltd. |
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