CN104860460A - Processing device for aniline intermediate production waste water - Google Patents
Processing device for aniline intermediate production waste water Download PDFInfo
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- CN104860460A CN104860460A CN201410739943.6A CN201410739943A CN104860460A CN 104860460 A CN104860460 A CN 104860460A CN 201410739943 A CN201410739943 A CN 201410739943A CN 104860460 A CN104860460 A CN 104860460A
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- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000002351 wastewater Substances 0.000 title abstract description 23
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 238000001179 sorption measurement Methods 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000001704 evaporation Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims description 71
- 239000007788 liquid Substances 0.000 claims description 66
- 238000010521 absorption reaction Methods 0.000 claims description 31
- 238000005406 washing Methods 0.000 claims description 26
- 238000007670 refining Methods 0.000 claims description 12
- 239000012452 mother liquor Substances 0.000 claims description 11
- 239000013505 freshwater Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000006200 vaporizer Substances 0.000 claims description 2
- 238000003795 desorption Methods 0.000 abstract description 15
- 238000011084 recovery Methods 0.000 abstract 3
- 229920006395 saturated elastomer Polymers 0.000 description 17
- 239000000243 solution Substances 0.000 description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- NHNUFAASKXPOQA-UHFFFAOYSA-N (3-acetamido-2-hydroxyphenyl)arsonic acid Chemical compound C(C)(=O)NC=1C(=C(C=CC1)[As](O)(=O)O)O NHNUFAASKXPOQA-UHFFFAOYSA-N 0.000 description 1
- TYTBUABAZPLEIG-UHFFFAOYSA-N C(C)N(C1=CC=CC=C1)CC.C(C)(=O)NC=1C(=C(C=CC1)[As](O)(O)=O)O Chemical compound C(C)N(C1=CC=CC=C1)CC.C(C)(=O)NC=1C(=C(C=CC1)[As](O)(O)=O)O TYTBUABAZPLEIG-UHFFFAOYSA-N 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002168 alkylating agent Substances 0.000 description 1
- 229940100198 alkylating agent Drugs 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Provided is a processing device for aniline intermediate production waste water. The processing device comprises a raw water tank, a filtering device F1, a filtering device F2, an N-staged series connection resin adsorption device, a refined water tank, a multiple-effect evaporation device, a desorption agent storage tank and a desorbed solution recovery tank. The N-staged series connection resin adsorption device is a (N+1)-tower N-staged series connection resin adsorption device composed of (N+1) adsorption towers filled with resin columns through series connection. One of the adsorption towers is a standby tower. An outlet of the upper stage adsorption tower is connected with an inlet of a next stage adsorption tower. The outlet of the raw water tank is connected with the inlet of the filtering device F1. The inlet of each adsorption tower is connected with the outlet of the filtering device F1 and the outlet of the desorption agent storage tank. The outlet of each adsorption tower is connected with the inlet of the filtering device F2 and the inlet of the desorbed solution recovery tank. Valves are arranged between each adsorption tower and the filtering device F1, between each adsorption tower and the desorption agent storage tank, between each adsorption tower and the filtering device F2 and between each adsorption tower and the desorbed solution recovery tank. The outlet of the filtering device F2 is connected with the inlet of the refined water tank. The outlet of the refined water tank is connected with the inlet of the multiple-effect evaporation device.
Description
(1) technical field
The present invention relates to a kind for the treatment of unit of aniline intermediate factory effluent, the treatment unit of containing ammonium chloride or sodium chloride waste water in especially a kind of aniline intermediate factory effluent.
(2) background technology
Aniline intermediate is the important intermediate of synthetic dyestuff, as 3-acetylaminohydroxyphenylarsonic acid N, N-Diethyl Aniline, 2-methoxyl group-5-acetylaminohydroxyphenylarsonic acid N, in N-Diethyl Aniline preparation process, monochloroethane is adopted to make alkylating agent, when liquefied ammonia or ammoniacal liquor make acid binding agent, the organic waste water of a large amount of containing ammonium chloride can be produced; In the preparation process of and for example 3-acetylaminohydroxyphenylarsonic acid N-cyanoethyl-Phenhenzamine, adopting Benzyl Chloride for replacing reagent, when alkali lye is as acid binding agent, then can produce the organic waste water of a large amount of sodium chloride-containing.The existing processing mode of such waste water is many to be reclaimed the inorganic salt in waste water by evaporation concentration device, but easily produces tar or blocking pipe in concentration process, and the inorganic salt quality obtained is not high yet.Therefore, a kind of effective waste water cleaning device of exploitation seems particularly necessary.
(3) summary of the invention
The object of this invention is to provide a kind ofly can realize serialization clean, the treatment unit of the aniline intermediate factory effluent with remarkable Social and economic benef@.
For achieving the above object, the present invention adopts following technical scheme:
A treatment unit for aniline intermediate factory effluent, comprising:
Former pond, filtration unit F1, filtration unit F2, N level series connection resin absorption device, refining pond, multi-effect evaporating device, desorbing agent storage tank and desorbed solution withdrawing can;
Described N level series connection resin absorption device is the N+1 tower N level series connection resin absorption device be composed in series by N+1 the adsorption tower being filled with resin column, be designated as adsorption tower 1 to adsorption tower N+1, one of them adsorption tower is stand-by still, and the outlet of upper level adsorption tower connects the entrance of next stage adsorption tower;
Described former basin outlet is connected with filtration unit F1 entrance, the entrance of each adsorption tower exports with filtration unit F1 respectively, the outlet of desorbing agent storage tank is connected, the outlet of each adsorption tower connects the entrance of another filtration unit F2 entrance and desorbed solution withdrawing can respectively, a valve is provided with between each adsorption tower and filtration unit F1, desorbing agent storage tank, filtration unit F2, desorbed solution withdrawing can, the outlet of filtration unit F2 connects refining basin inlet, and refining basin outlet connects the entrance of multi-effect evaporating device.
Further, described treatment unit also comprises fresh water storage tank and washing water withdrawing can, and the entrance of each adsorption tower connects the outlet of fresh water storage tank by a valve, and the outlet of each adsorption tower connects the entrance of washing water withdrawing can by a valve.
Further, described treatment unit also comprises crystallization tank, whizzer, centrifuge mother liquor groove, condenser and steams tank, the outlet of multi-effect evaporating device is connected with crystallizer tank entrance and condenser inlet respectively, crystallizer tank outlet is connected with whizzer, centrifuge mother liquor groove more successively, condensator outlet with steam tank and be connected, the not solidifying gas in condenser is extracted out by vacuum pump.
Further, described filtration unit F1 and F2, is made up of the micro-filter of 1 ~ 3 grade of series connection respectively, and the outlet of upper level micro-filter connects the import of next stage micro-filter, the like.The entrance of described filtration unit F1 and the entrance of first step micro-filter, the outlet of described filtration unit F1 and the outlet of last step micro-filter, the entrance and exit of described filtration unit F2 by that analogy.
Further, the adsorption tower that described N level series connection resin absorption device is preferably filled with resin column by three to five is composed in series, and namely the value of N is 2 ~ 4, specifically, adopt 3 tower, 2 grades of series models, 4 tower, 3 grades of series models or 5 towers, 4 grades of series models, particularly preferably four tower thtee-stage shiplock compositions.
Further, described multi-effect evaporating device is made up of M vaporizer, be designated as the first single-effect evaporator to M single-effect evaporator, every single-effect evaporator is all made up of well heater and gas-liquid separator, often imitates between well heater and gas-liquid separator and is provided with the circulation connecting pipe (being beneficial to feed liquid circulate between well heater and separator) connected by pump, and, often imitate on well heater and be all provided with steam-in, often imitate gas-liquid separator and be all provided with overhead vapor outlet and bottom discharge mouth, steam-in on first effect well heater connects raw steam, overhead vapor outlet on first effect gas-liquid separator is connected with the second steam-in of imitating on well heater, first effect gas-liquid separator bottom discharge mouth by pump be connected with the second entrance of imitating gas-liquid separator (first imitate concentrate after waste water, in the first effect gas-liquid separator after vapor-liquid separation, liquid enters the second effect gas-liquid separator, squeezing into the second effect well heater at this by recycle pump continues concentrated, gas then enters the second effect well heater as secondary steam), the steam-in of the overhead vapor outlet connection triple effect well heater of the second effect gas-liquid separator, second effect gas-liquid separator bottom discharge mouth by pump be connected with the entrance of triple effect gas-liquid separator (two imitate concentrate after waste water, in the second effect gas-liquid separator after vapor-liquid separation, liquid enters triple effect gas-liquid separator, squeezing into triple effect well heater at this by recycle pump continues concentrated, gas then enters triple effect well heater as secondary steam), by that analogy, the overhead vapor outlet that M-1 is imitated on gas-liquid separator is connected with the steam-in that M is imitated on well heater, M-1 imitate gas-liquid separator bottom discharge mouth by pump be connected with the entrance that M imitates gas-liquid separator (M-1 imitate concentrate after waste water, in M-1 effect gas-liquid separator after vapor-liquid separation, liquid enters M and imitates gas-liquid separator, squeezing into M effect well heater at this by recycle pump continues concentrated, gas then enters M and imitates well heater as secondary steam).The overhead vapor outlet that M imitates gas-liquid separator connects condenser inlet, and the bottom discharge mouth that M imitates gas-liquid separator connects crystallizer tank entrance.
Further, well heater is imitated until be equipped with connecting pipe between the first effect well heater and connect successively through the top of often imitating well heater at M, and this connecting pipe continues to extend connection first and imitates well heater and the first effect gas-liquid separator (from the waste water in refining pond by this connecting pipe, imitate well heater top by M to enter, flow through M-1 successively and imitate well heater top until the first effect is after well heater top carries out preheating, enter the first effect gas-liquid separator, at this, pumped in the first effect well heater by recycle pump, start evaporating concentration process).
Multi-effect evaporating device of the present invention preferably adopts triple-effect evaporation plant, and triple-effect evaporation plant is made up of the first effect falling-film evaporator, the second effect pump feed evaporator and triple effect pump feed evaporator.
Apparatus of the present invention operational process is for 3 grades, 4 towers (being designated as adsorption tower A, B, C, D) series connection absorption mode, other ranks series connection absorption mode can the rest may be inferred (as 3 towers 2 connect time, i.e. AB tower series connection absorption, after the absorption of A tower is saturated, switch to BC tower series connection absorption, simultaneously, A tower is resolved for subsequent use, after the absorption of B tower is saturated, switch to CA tower series connection absorption, B tower is resolved for subsequent use simultaneously, after the absorption of C tower is saturated, switch to AB tower series connection absorption, move in circles successively, carry out the continuous adsorption parse operation of waste water):
Particularly, the application art of described device in aniline intermediate production wastewater treatment is as follows:
1) aniline intermediate produces the wastewater collection of sodium chloride-containing or the ammonium chloride produced to former pond, after device F1 filters after filtration, be pumped into the three tower cascade connected resin absorption device of A, B, C (4 towers 3 are connected, and D tower is for subsequent use), carry out adsorption operations;
2) tower A upon adsorption adsorb saturated after, stop charging, waste water from filtration unit F1 carries out adsorption operations by valve transfer to the resin absorption device that B, C, D are three tower cascade connected, simultaneously, desorbing agent in desorbing agent storage tank is pumped into saturated adsorption tower A, resolve saturated resin post, desorbed solution enters desorbed solution withdrawing can, and after desorption, adsorption tower A is as stand-by still.And saturated adsorption tower A the most handy clear water (or upper level washs the lower concentration desorbed solution that the washing water that obtain or upper level desorption obtain) before and after desorption carries out one or many washing, and the washing water of generation can reuse.Generally speaking, upper level washs the washing water obtained and can be used as next stage bath water, washing water reusable edible, when carrying out 1 time adsorption tower A or repeatedly wash before desorption, wash the washing water that obtain 1st time and enter refining pond, follow-up the 2nd time or repeatedly wash the washing water obtained and enter washings withdrawing can; When carrying out 1 time adsorption tower A or repeatedly wash after desorption, residual desorbing agent in 1st washing water on meeting wash-out resin column, concentration is slightly higher, can directly enter desorbed solution withdrawing can, follow-up the 2nd time or in repeatedly washing the washing water that obtain, desorbing agent concentration is low, enters washings withdrawing can.
3) after B absorption tower adsorbs is saturated, stop charging, waste water from filtration unit F1 carries out adsorption operations by valve transfer to the resin absorption device that C, D, A are three tower cascade connected, simultaneously, the desorption of saturated adsorption tower B, washing step are with step 2) in saturated adsorption tower A, after desorption, absorption tower B is as stand-by still;
4) after C absorption tower adsorbs is saturated, stop charging, from the waste water of filtration unit F1 by valve transfer to the three tower cascade connected adsorption unit of D, A, B, the desorption of saturated adsorption tower C, washing step are with step 2) in saturated adsorption tower A, after desorption, absorption tower C is as stand-by still;
5) after D absorption tower adsorbs is saturated, stop charging, from the waste water of filtration unit F1 by valve transfer to the three tower cascade connected adsorption unit of A, B, C, the desorption of saturated adsorption tower D, washing step are with step 2) in saturated adsorption tower A, after desorption, absorption tower D is as stand-by still;
6) above 1 is repeated) ~ 5) step, this device can realize the continuous adsorption parse operation of waste water.Desorbed solution in desorbed solution withdrawing can, can optionally, and direct reuse in the synthesis of further dye, or by rectifying separation, reclaims desorbing agent and phenyl amines organism.
7) waste water after 3 tower series connection absorption, device F2 enters Purified Water pond after filtering after filtration, reclaim ammonium chloride wherein or sodium-chlor by triple-effect evaporation plant condensing crystal, centrifuge mother liquor returns triple-effect evaporation plant, and vapor condensation becomes Water circulation and makes process water.
8) washing water in washing water withdrawing can, after visual washing, organic concentration carries out categorised collection and cyclically utilizing washing, such as can be used for carrying out gradient circulation cleaning to the resin column in adsorption tower, until wherein desorbing agent concentration higher after enter desorbed solution withdrawing can, desorbing agent is reclaimed in rectifying, goes round and begins again.
Wastewater treatment equipment of the present invention, its beneficial effect is embodied in:
1, the resin absorption device of multitower series connection is adopted, connected and Valve controlling by the pipeline between adsorption tower, the series and parallel connections realized between adsorption tower connects, be connected in series and can realize waste water continuous print adsorption treatment, organism in waste water is adsorbed more fully, and is connected in parallel when realization does not affect absorption and makes saturated resin successful switch carry out desorption and regeneration to resin regenerating device;
2, the top of each effect well heater of multi-effect evaporating device is equipped with connecting pipe, without the need to independent warm, thus can make full use of heating medium, reduces steam consumption, reduces running cost;
3, the centrifuge mother liquor that whizzer separates can return multi-effect evaporating device and continue evaporation concentration, ensures non-wastewater discharge.
To sum up, wastewater treatment equipment of the present invention, realizes effective process and the comprehensive utilization of resources of waste water, is a kind of real serialization cleaning device, has significant economic benefit and social benefit.
(4) accompanying drawing explanation
Fig. 1 is the structural representation of wastewater treatment equipment of the present invention;
Fig. 2 is the structural representation of triple-effect evaporation plant of the present invention;
In figure: in figure: A, B, C, D are adsorption tower, 1,2 is washings withdrawing can, and 3 is fresh water storage tank, 4 is desorbing agent storage tank, and 5 is desorbed solution withdrawing can, and 6 is the first effect well heater, 7 is the first effect gas-liquid separator, and 8 is the second effect well heater, and 9 is the second effect gas-liquid separator, 10 is triple effect well heater, and 11 is triple effect gas-liquid separator, and 12 is condenser, P1 ~ P4 is transferpump, and P5, P6, P8 are recycle pump, and P7, P9 are discharging pump, P12 is vacuum pump, and F1, F2 are microfilter device.
(5) embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but protection scope of the present invention is not limited to this.
Please refer to Fig. 1 and Fig. 2, a special purpose device for the treatment process of aniline intermediate synthetic wastewater, this device comprises former pond, microfilter device F1, microfilter device F2, resin absorption device, refining pond, triple-effect evaporation plant, desorbing agent storage tank 4 and desorbed solution withdrawing can 5, fresh water storage tank 3, washing water withdrawing can 1 and 2, crystallizer tank, whizzer, centrifuge mother liquor groove, condenser and steams tank;
Described resin absorption device is made up of the adsorption tower A ~ D being filled with resin column, is provided with connecting pipe between each adsorption tower, upper level outlet next stage entrance, realizes series connection absorption;
Former pond is connected with microfilter device F1, microfilter device F1 outlet is connected with pump P1, the outlet of pump P1 is in parallel with four entrances of adsorption tower A ~ D, the entrance of adsorption tower A ~ D is connected with the outlet of fresh water tank 3 and desorbing agent storage tank 4 separately by pump P4, four outlets of adsorption tower A ~ D are connected with the entrance of washings withdrawing can 1,2 and desorbed solution withdrawing can 5 separately, and the outlet of desorbed solution withdrawing can 5 is connected with aftertreatment device (such as rectifying tower) (not shown) by pump P3; Four outlets of adsorption tower A ~ D are also connected with microfilter device F2 separately, and the outlet of microfilter device F2 is connected with refining pond, and the outlet in refining pond is connected with pump P2, and the outlet of pump P2 is connected with triple-effect evaporation plant;
Described triple-effect evaporation plant is made up of the first effect well heater 6, first effect gas-liquid separator 7, second effect well heater 8, second effect gas-liquid separator 9, triple effect well heater 10, triple effect gas-liquid separator 11, often imitate between well heater and gas-liquid separator and be all provided with the circulation connecting pipe connected by pump, circulating of streams is realized by recycle pump, namely well heater 6 to be circulated with gas-liquid separator 7 by pump P5 and is connected by the first single-effect evaporator, well heater 8 to be circulated with gas-liquid separator 9 by pump P6 and is connected by the second single-effect evaporator, and well heater 10 to be circulated with gas-liquid separator 11 by pump P8 and is connected by third effect evaporator, at the first effect well heater 6, second effect well heater 8, be equipped with material connecting pipe between triple effect well heater 10 and connect successively through the top of often imitating well heater, and well heater and the first effect gas-liquid separator are imitated in this connecting pipe continuation extension connection first, brine waste from refining pond is entered by triple effect well heater 10 upper pipe, advection is through the second effect well heater 8, after first effect well heater 6, enter in the first effect gas-liquid separator 7 (flow through in process, by the pipeline waste heat be arranged in well heater, preheating is carried out to material), pump to (the first effect well heater 6 is connected with raw steam-in) in the first effect well heater 6 by recycle pump, carry out heat exchange with raw steam to concentrate,
The bottom of the first effect gas-liquid separator 7 is provided with discharge port, top is provided with vapour outlet, its bottom discharge mouth is connected with the second entrance of imitating gas-liquid separator 9 by pump P5, overhead vapor outlet connects with the second steam-in of imitating well heater 8 (imitates the brine waste after concentrating through first to be separated in gas-liquid separator, liquid enters in the second effect gas-liquid separator to be pumped by recycle pump and continues evaporation concentration to the second effect well heater, and gas enters the second effect well heater and is used as secondary steam); The bottom discharge mouth of the second effect gas-liquid separator 9 is connected with the entrance of triple effect gas-liquid separator 11 by pump P7, overhead vapor outlet connects with the steam-in of triple effect well heater 10 (imitates the brine waste after concentrating through second to be separated in gas-liquid separator, liquid enters in triple effect gas-liquid separator to be pumped by recycle pump and continues evaporation concentration to triple effect well heater, and gas enters triple effect well heater and is used as secondary steam); The bottom discharge mouth of triple effect gas-liquid separator 11 is connected with crystallizer tank by pump P9, crystallizer tank outlet is connected with pump P10, the outlet of pump P10 is connected with whizzer, and the outlet of whizzer is connected with centrifuge mother liquor groove, and the outlet of centrifuge mother liquor groove turns back to triple-effect evaporation plant again by pump P11; Overhead vapor outlet on triple effect gas-liquid separator 11 is connected with condenser 12 entrance, two of condenser 12 outlets respectively with pump P12 with steam tank and be connected, the gas that do not coagulate in condenser is extracted out by pump P12.
Claims (9)
1. a treatment unit for aniline intermediate factory effluent, comprising:
Former pond, filtration unit F1, filtration unit F2, N level series connection resin absorption device, refining pond, multi-effect evaporating device, desorbing agent storage tank and desorbed solution withdrawing can;
Described N level series connection resin absorption device is the N+1 tower N level series connection resin absorption device be composed in series by N+1 the adsorption tower being filled with resin column, be designated as adsorption tower 1 to adsorption tower N+1, one of them adsorption tower is stand-by still, and the outlet of upper level adsorption tower connects the entrance of next stage adsorption tower;
Described former basin outlet is connected with filtration unit F1 entrance, the entrance of each adsorption tower exports with filtration unit F1 respectively, the outlet of desorbing agent storage tank is connected, the outlet of each adsorption tower connects the entrance of another filtration unit F2 entrance and desorbed solution withdrawing can respectively, a valve is provided with between each adsorption tower and filtration unit F1, desorbing agent storage tank, filtration unit F2, desorbed solution withdrawing can, the outlet of filtration unit F2 connects refining basin inlet, and refining basin outlet connects the entrance of multi-effect evaporating device.
2. treatment unit as claimed in claim 1, it is characterized in that: described treatment unit also comprises fresh water storage tank and washing water withdrawing can, the entrance of each adsorption tower connects the outlet of fresh water storage tank by a valve, the outlet of each adsorption tower connects the entrance of washing water withdrawing can by a valve.
3. treatment unit as claimed in claim 1, it is characterized in that: described treatment unit also comprises crystallization tank, whizzer, centrifuge mother liquor groove, condenser and steams tank, the outlet of multi-effect evaporating device is connected with crystallizer tank entrance and condenser inlet respectively, crystallizer tank outlet is connected with whizzer, centrifuge mother liquor groove more successively, condensator outlet with steam tank and be connected.
4. treatment unit as claimed in claim 2, it is characterized in that: described treatment unit also comprises crystallization tank, whizzer, centrifuge mother liquor groove, condenser and steams tank, the outlet of multi-effect evaporating device is connected with crystallizer tank entrance and condenser inlet respectively, crystallizer tank outlet is connected with whizzer, centrifuge mother liquor groove more successively, condensator outlet with steam tank and be connected.
5. the treatment unit as described in one of Claims 1 to 4, is characterized in that: described filtration unit F1 and F2, is made up of respectively the micro-filter of 1 ~ 3 grade of series connection, and the outlet of upper level micro-filter connects the import of next stage micro-filter.
6. the treatment unit as described in one of Claims 1 to 4, is characterized in that: the value of N is 2 ~ 4.
7. the treatment unit as described in claim 3 or 4, it is characterized in that: described multi-effect evaporating device is made up of M vaporizer, be designated as the first single-effect evaporator to M single-effect evaporator, every single-effect evaporator is all made up of well heater and gas-liquid separator, often imitates between well heater and gas-liquid separator and is provided with the circulation connecting pipe connected by pump, and, often imitate on well heater and be all provided with steam-in, often imitate gas-liquid separator and be all provided with overhead vapor outlet and bottom discharge mouth, steam-in on first effect well heater connects raw steam, overhead vapor outlet on first effect gas-liquid separator is connected with the second steam-in of imitating on well heater, the bottom discharge mouth of the first effect gas-liquid separator is connected with the second entrance of imitating gas-liquid separator by pump, the steam-in of the overhead vapor outlet connection triple effect well heater of the second effect gas-liquid separator, the bottom discharge mouth of the second effect gas-liquid separator is connected by the entrance of pump with triple effect gas-liquid separator, by that analogy, the overhead vapor outlet that M-1 is imitated on gas-liquid separator is connected with the steam-in that M is imitated on well heater, the bottom discharge mouth that M-1 imitates gas-liquid separator is connected with the entrance that M imitates gas-liquid separator by pump.
8. treatment unit as claimed in claim 7, it is characterized in that: at M effect well heater until be equipped with connecting pipe between the first effect well heater and connect successively through the top of often imitating well heater, and well heater and the first effect gas-liquid separator are imitated in this connecting pipe continuation extension connection first.
9. the treatment unit as described in one of Claims 1 to 4 or 8, is characterized in that: described multi-effect evaporating device adopts triple-effect evaporation plant.
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| CN201410739943.6A CN104860460A (en) | 2014-12-05 | 2014-12-05 | Processing device for aniline intermediate production waste water |
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| CN201410739943.6A CN104860460A (en) | 2014-12-05 | 2014-12-05 | Processing device for aniline intermediate production waste water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948293A (en) * | 2016-06-16 | 2016-09-21 | 山东同源和环境工程有限公司 | Wastewater resourceful treatment process based on nanocomposite targeted separation |
| CN106268003A (en) * | 2016-08-29 | 2017-01-04 | 黎志春 | A kind of device utilizing resin column isolating chondroitin sulfate |
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| CN105948293A (en) * | 2016-06-16 | 2016-09-21 | 山东同源和环境工程有限公司 | Wastewater resourceful treatment process based on nanocomposite targeted separation |
| CN105948293B (en) * | 2016-06-16 | 2019-05-03 | 山东同源和环境工程有限公司 | It is a kind of to target isolated waste water reclaiming treatment process based on nanocomposite |
| CN106268003A (en) * | 2016-08-29 | 2017-01-04 | 黎志春 | A kind of device utilizing resin column isolating chondroitin sulfate |
| CN106268004A (en) * | 2016-08-29 | 2017-01-04 | 黎志春 | A kind of chondroitin sulfate segregation apparatus with filtration |
| CN106310778A (en) * | 2016-08-29 | 2017-01-11 | 黎志春 | Chondroitin sulfate separation device |
| CN106345173A (en) * | 2016-08-29 | 2017-01-25 | 黎志春 | Separating instrument for filtering chondroitin sulfate |
| CN110194721A (en) * | 2019-06-06 | 2019-09-03 | 浙江工业大学 | A kind of hydroxyphenylglycine centrifuge mother liquor processing unit and method |
| CN110194721B (en) * | 2019-06-06 | 2022-05-24 | 浙江工业大学 | Hydroxyphenylglycine centrifugal mother liquor treatment device and method |
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