CN110498398A - A kind of waste hydrochloric acid differential pressure regeneration treatment system and regeneration treating method - Google Patents
A kind of waste hydrochloric acid differential pressure regeneration treatment system and regeneration treating method Download PDFInfo
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- CN110498398A CN110498398A CN201910724689.5A CN201910724689A CN110498398A CN 110498398 A CN110498398 A CN 110498398A CN 201910724689 A CN201910724689 A CN 201910724689A CN 110498398 A CN110498398 A CN 110498398A
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- C01—INORGANIC CHEMISTRY
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- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
- C01B7/0712—Purification ; Separation of hydrogen chloride by distillation
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Abstract
The present invention relates to a kind of waste hydrochloric acid differential pressure regeneration treatment system and regeneration treating methods, the waste hydrochloric acid differential pressure regeneration treatment system includes resolution system, concentration systems and surplus heat treatment system, and the resolution system includes concentrated hydrochloric acid storage tank, concentrated hydrochloric acid preheater, hydrochloric acid cooler, Analytic Tower, parsing tower reboiler, hydrochloric acid first-stage condenser, hydrochloric acid secondary condenser and condenses sour tank；The concentration systems include dilute hydrochloric acid storage tank, dilute hydrochloric acid flash tank, concentration tower, concentration tower reboiler, concentration acid cooler, gelled acid storage tank, concentration overhead condenser, vacuum buffer tank and water flow jet pump vacuum pump set；The surplus heat treatment system includes condensate water pot A, condensate water pot B, recycling sink and hot water storgae.The present invention has the advantages that waste hydrochloric acid differential pressure regeneration treatment system of the present invention, it can be realized the recycling utilization of waste hydrochloric acid and recyclable obtain concentrated hydrochloric acid.
Description
Technical field
The invention belongs to waste hydrochloric acid processing technology field, in particular to a kind of waste hydrochloric acid differential pressure regeneration treatment system and regeneration
Processing method.
Background technique
Hydrochloric acid is a kind of important inorganic chemical product, be widely used in dyestuff, organic synthesis, food processing, printing and dyeing rinsing,
The industries such as leather, metallurgy, steel.
Hydrochloric acid has strong corrosivity, can also be to environment if waste liquid is not only the waste to resource without processing
Cause serious influence.The processing method of spent acid is to add spent acid alkali neutralization to discharge again to neutrality.For many years, vast scientific and technical research
Person is to realize that waste acid recycling has done very big effort, and main method has roasting method, extraction and evaporation.Wherein roasting method institute
It needs that unit scale is big, investment is big, energy consumption is high, while will lead to secondary pollution；Extraction is complicated for operation, investment is larger；Evaporation
Although method small investment, easy to operate, the concentration of hydrochloric acid that recycling obtains is low, can not directly use.
Therefore, it researches and develops a kind of recycling utilization that can be realized waste hydrochloric acid and recyclable obtains the abraum salt of concentrated hydrochloric acid
Sour differential pressure regeneration treatment system and regeneration treating method.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of recycling utilization that can be realized waste hydrochloric acid and can be recycled
Obtain the waste hydrochloric acid differential pressure regeneration treatment system and regeneration treating method of concentrated hydrochloric acid
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of waste hydrochloric acid differential pressure regeneration treatment system, feature exist
In: the waste hydrochloric acid differential pressure regeneration treatment system include resolution system, concentration systems and surplus heat treatment system,
The resolution system include concentrated hydrochloric acid storage tank, concentrated hydrochloric acid preheater, hydrochloric acid cooler, Analytic Tower, parsing tower reboiler,
Hydrochloric acid first-stage condenser, hydrochloric acid secondary condenser and the sour tank of condensation；
The top of the concentrated hydrochloric acid storage tank is respectively equipped with useless concentrated hydrochloric acid feed pipe, the hydrogen chloride gas being connected to concentrated hydrochloric acid storage tank
Discharge pipe A and concentrated hydrochloric acid discharge pipe A is also provided with and communicated with concentrated hydrochloric acid feed pipe on the waste hydrochloric acid feed pipe；Institute
The side for stating concentrated hydrochloric acid storage tank lower end has the concentrated hydrochloric acid discharge pipe B that setting is connected to concentrated hydrochloric acid storage tank, concentrated hydrochloric acid storage tank
Another side of lower end has the concentrated hydrochloric acid discharge pipe C that setting is connected to concentrated hydrochloric acid storage tank；The concentrated hydrochloric acid discharge pipe C's
The other end is connected to setting with concentrated hydrochloric acid discharge pipe A, and has also been arranged in series concentrated hydrochloric acid pump on concentrated hydrochloric acid discharge pipe C；
One side of the concentrated hydrochloric acid preheater is connected to setting with concentrated hydrochloric acid discharge pipe A, and the top of concentrated hydrochloric acid preheater is equipped with
The dilute hydrochloric acid discharge pipe A being connected to concentrated hydrochloric acid preheater, the bottom end of concentrated hydrochloric acid preheater is equipped with to be connected to concentrated hydrochloric acid preheater
Dilute hydrochloric acid discharge pipe B, another side of concentrated hydrochloric acid preheater is equipped with the concentrated hydrochloric acid discharge nozzle being connected to concentrated hydrochloric acid preheater
Road D；
The top of the hydrochloric acid cooler is connected to setting, the bottom end tool of the hydrochloric acid cooler with dilute hydrochloric acid discharge pipe B
There is the dilute hydrochloric acid discharge pipe C that setting is connected to hydrochloric acid cooler, a side lower part of hydrochloric acid cooler is equipped with and dilute salt
The recirculated water water supply pipeline A of acid cooler connection, another side top of hydrochloric acid cooler is equipped with to be connected with hydrochloric acid cooler
Logical recirculated water water return pipeline A；
One side top of the Analytic Tower is connected to setting with concentrated hydrochloric acid discharge pipe D, a side lower part of Analytic Tower have with
The dilute hydrochloric acid discharge pipe D of Analytic Tower connection setting, and the other end of dilute hydrochloric acid discharge pipe D and dilute hydrochloric acid discharge pipe B connect
Logical setting；The bottom center of the Analytic Tower is equipped with the dilute hydrochloric acid for being connected to setting with Analytic Tower and parsing tower reboiler bottom end and feeds
Pipeline A, another side lower part of the Analytic Tower be equipped be connected to Analytic Tower and parsing tower reboiler top the hydrogen chloride that is arranged/
Water mixed gas discharge pipe A, the top of Analytic Tower are equipped with the hydrogen chloride/water mixed gas discharge pipe B being connected to Analytic Tower；
One side of the parsing tower reboiler is disposed with the saturated vapor being connected to parsing tower reboiler from top to bottom
Admission line A, condensed water water inlet line A and condensed water outlet conduit A；
The top of the hydrochloric acid first-stage condenser is connected to setting, the hydrochloric acid level-one with hydrogen chloride/water mixed gas discharge pipe B
The bottom end of condenser has a concentrated hydrochloric acid discharge pipe E for be connected to and being arranged with hydrochloric acid first-stage condenser, and the one of hydrochloric acid first-stage condenser
Side top is provided with the circulating backwater pipeline B being connected to hydrochloric acid first-stage condenser, and another side of hydrochloric acid first-stage condenser is certainly
The circulation water supply pipeline B being connected to hydrochloric acid first-stage condenser and hydrogen chloride/water mixed gas discharge nozzle are disposed under above
Road C；
The top of the hydrochloric acid secondary condenser is connected to setting, the hydrochloric acid second level with hydrogen chloride/water mixed gas discharge pipe C
The bottom end of condenser has the concentrated hydrochloric acid discharge pipe F for be connected to and being arranged with hydrochloric acid secondary condenser, and concentrated hydrochloric acid discharge pipe F
The other end is connected to setting with concentrated hydrochloric acid discharge pipe E；One side top of the hydrochloric acid secondary condenser is provided with and hydrochloric acid two
The circulating backwater pipeline C of grade condenser connection, another side of hydrochloric acid secondary condenser is disposed with from top to bottom and hydrochloric acid
The circulation water supply pipeline C and hydrogen chloride gas discharge pipe B of secondary condenser connection；
The top for condensing sour tank is connected to setting with concentrated hydrochloric acid discharge pipe E, and the top for condensing sour tank is additionally provided with and condenses
The hydrogen chloride gas discharge pipe C of sour tank connection, and hydrogen chloride gas discharge pipe C is connected to hydrogen chloride gas discharge pipe B
Setting；The side lower part for condensing sour tank is connected to setting with the concentrated hydrochloric acid feed pipe on the waste hydrochloric acid feed pipe；
The concentration systems include dilute hydrochloric acid storage tank, dilute hydrochloric acid flash tank, concentration tower, concentration tower reboiler, concentration acid cooler,
Gelled acid storage tank, concentration overhead condenser, vacuum buffer tank and water flow jet pump vacuum pump set；
The top of the dilute hydrochloric acid storage tank is connected to setting, the dilute hydrochloric acid with the dilute hydrochloric acid discharge pipe C in hydrochloric acid cooler
The top of storage tank further respectively has the hydrogen chloride gas discharge pipe D being connected to dilute hydrochloric acid storage tank and dilute hydrochloric acid discharge pipe E；Institute
The side for stating dilute hydrochloric acid storage tank lower end has the dilute hydrochloric acid discharge pipe F that setting is connected to dilute hydrochloric acid storage tank, dilute hydrochloric acid storage tank
Another side of lower end has the dilute hydrochloric acid discharge pipe G that setting is connected to dilute hydrochloric acid storage tank；The dilute hydrochloric acid discharge pipe G's
The other end is connected to setting with dilute hydrochloric acid discharge pipe E, and has also been arranged in series dilute hydrochloric acid pump on dilute hydrochloric acid discharge pipe G；
One side of the dilute hydrochloric acid flash tank is connected to setting, and concentrated hydrochloric acid with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank
Dilute hydrochloric acid discharge pipe A on preheater is also connected to setting with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank；The dilute hydrochloric acid
The bottom end of flash tank is equipped with the dilute hydrochloric acid feed pipe B that setting is connected to dilute hydrochloric acid flash tank, the top of the dilute hydrochloric acid flash tank
End is equipped with the sour gas feed pipe A that setting is connected to dilute hydrochloric acid flash tank；
The top center of the concentration tower is equipped with the sour gas discharge pipe A being connected to concentration tower, the bottom center of concentration tower
It is sequentially connected in series equipped with the concentrated hydrochloric acid discharge pipe H being connected to concentration tower, and on concentrated hydrochloric acid discharge pipe H and is provided with concentration tower discharging
Pump and concentration acid cooler；One side of the concentration tower from top to bottom successively with sour gas feed pipe A and dilute hydrochloric acid into
Pipe material B connection setting, and the acidity that setting is connected to concentration tower is additionally provided on the concentration tower of the lower end dilute hydrochloric acid feed pipe B
Gas discharge pipeline B；The top of another side of the concentration tower is equipped with the acid waste water discharge pipe A being connected to concentration tower
(removing recycling sink)；
One side of the concentration acid cooler is disposed with the recirculation return pipe being connected to concentration acid cooler from top to bottom
Road D and circulation water supply pipeline D；
The upper end of the gelled acid storage tank is connected to setting, the concentration with the other end of the concentrated hydrochloric acid discharge pipe H on concentration tower
The upper end of sour storage tank further respectively has the hydrogen chloride gas discharge pipe E being connected to gelled acid storage tank and concentrated hydrochloric acid discharge pipe I；
One side of gelled acid storage tank lower end has the concentrated hydrochloric acid discharge pipe J that setting is connected to gelled acid storage tank, gelled acid storage
Another side of slot lower end has the concentrated hydrochloric acid discharge pipe K that setting is connected to gelled acid storage tank；The concentrated hydrochloric acid discharge pipe K
The other end setting is connected to concentrated hydrochloric acid discharge pipe I, and be also arranged in series gelled acid conveying on concentrated hydrochloric acid discharge pipe K
Pump；
The top of the concentration tower reboiler is connected to setting with sour gas discharge pipe B, and the bottom center of tower reboiler is concentrated
Equipped with the concentrated hydrochloric acid discharge pipe L being connected to concentration tower reboiler, and concentrated hydrochloric acid discharge pipe L and concentrated hydrochloric acid discharge pipe H connects
Logical setting；One side of the concentration tower reboiler is disposed with the saturated vapor being connected to concentration tower reboiler from top to bottom
Admission line B, condensed water water inlet line B and condensed water outlet conduit B；
The top center of the concentration overhead condenser is connected to setting, concentration tower with the sour gas discharge pipe A on concentration tower
The bottom center of top condenser is equipped with the acid waste water discharge pipe B being connected to concentration overhead condenser；The concentration tower top is cold
One side of condenser is disposed with the circulating backwater pipeline E being connected to concentration overhead condenser, circulation upper hose from top to bottom
Road E and vacuum lead A, and the other end of the vacuum lead A is connected to setting with water flow jet pump vacuum pump set；
The top of the vacuum buffer tank is connected to setting with acid waste water discharge pipe B, the top of vacuum buffer tank be additionally provided with
The vacuum lead B of vacuum buffer tank connection, and the other end of vacuum lead B is connected to setting with vacuum lead A；It is described true
The bottom center of empty buffer tank is equipped with the acid waste water discharge pipe C being connected to vacuum buffer tank, and the acid waste water discharges
The other end of pipeline C is connected to setting with acid waste water discharge pipe A, has also been arranged in series on the acid waste water discharge pipe C
Vacuum condensation water pump；
The surplus heat treatment system includes condensate water pot A, condensate water pot B, recycling sink and hot water storgae；
The condensate water pot A is arranged in series on condensed water outlet conduit A, and the top of condensate water pot A and condensed water water inlet pipe
Road A connection setting；
The condensate water pot B is arranged in series on condensed water outlet conduit B, and the top of condensate water pot B and condensed water water inlet pipe
Road B connection setting, a side of condensate water pot B is also connected to setting with the condensed water outlet conduit A on condensate water pot A；
The top of the recycling sink is connected to setting with acid waste water discharge pipe A, and the top for recycling sink is additionally provided with and recycles
The acid waste water discharge pipe D of sink connection；One side of the recycling sink lower end is equipped with the acidity being connected to recycling sink
The other end of waste water discharge pipe E, the acid waste water discharge pipe E are connected to setting with acid waste water discharge pipe D, and acid
Recovered water pump has also been arranged in series on waste water discharge pipe E；Another side of the recycling sink lower end is equipped with and recycling sink
The recycle-water pipeline of connection；
The top of the hot water storgae is connected to setting with the condensed water outlet conduit B on condensate water pot B, and the top of hot water storgae is additionally provided with
The hot water effluent's pipeline A being connected to hot water storgae；One side of the hot water storgae lower end is equipped with the hot water effluent being connected to hot water storgae
The other end of pipeline B, the hot water effluent's pipeline B are connected to setting with hot water effluent's pipeline A, and also go here and there on hot water effluent's pipeline B
Connection is provided with heat-exchanger pump；Another side of the hot water storgae lower end is equipped with the condensed water outlet conduit C being connected to hot water storgae.
There are two the concentrated hydrochloric acid pumps, is arranged in parallel on concentrated hydrochloric acid discharge pipe C.
There are two the dilute hydrochloric acid pumps, is arranged in parallel on dilute hydrochloric acid discharge pipe G.
There are two the concentration tower discharging pumps, is arranged in parallel on concentrated hydrochloric acid discharge pipe H.
There are two the gelled acid delivery pumps, is arranged in parallel on concentrated hydrochloric acid discharge pipe K.
There are two the vacuum condensation water pumps, is arranged in parallel on acid waste water discharge pipe C.
There are two the recovered water pumps, is arranged in parallel on acid waste water discharge pipe E.
There are two the heat-exchanger pumps, is arranged in parallel on hot water effluent's pipeline B.
The regeneration treating method includes the following steps:
A) preheating for carrying out useless concentrated hydrochloric acid first, the waste hydrochloric acid that concentration is 31% is passed through in concentrated hydrochloric acid preheater and high-temperature medium
Heat exchange carries out being heated to 65-85 DEG C, and the waste hydrochloric acid that the concentration after preheating is 31% is passed through Analytic Tower；
B) concentration be 31% waste hydrochloric acid in Analytic Tower positive pressure parse, generate concentration be 19% dilute hydrochloric acid, hydrogen chloride gas and
Hydrogen chloride/water mixed gas, hydrogen chloride/water mixed gas in hydrochloric acid that mass percentage concentration is 19% pass through parsing tower bottom
Parsing reboiler evaporate and be precipitated, and condensed by condensed water, condensed hydrogen chloride gas is passed into Analytic Tower again
Middle iterative cycles parsing；
C) that hydrogen chloride/water mixed gas that Analytic Tower in b) generates is passed sequentially through hydrochloric acid first-stage condenser, hydrochloric acid second level again is cold
Condenser and the sour tank condensation of condensation, the hydrochloric acid that the mass percentage concentration of generation is 31% is passed through concentrated hydrochloric acid storage tank and stores, in condensation process
The hydrogen chloride gas of generation is exported by hydrogen chloride gas discharge pipe B；
D) dilute hydrochloric acid that the concentration that Analytic Tower in b) generates is 19% is sent to dilute hydrochloric acid flash tank, under the action of pressure difference, into
Row gas-liquid separation, the sour gas after separation are sent to the top of concentration tower, and dilute hydrochloric acid is then sent to the middle part of concentration tower, and 19% salt
Acid opens water flow jet before entering concentration tower and pumps vacuum pump set, so that sour gas is carried out concentration with dilute hydrochloric acid and reacts；
E) after the reaction was completed, concentration tower tower bottom generates the hydrochloric acid and heavy constituent gas that mass percentage concentration is 23% for concentration, then will
The hydrochloric acid that mass percentage concentration is 23% is delivered to concentration acid cooler device cooling by concentration tower discharging pump 20, then send to concentration
Sour storage tank storage；Heavy constituent gas is passed through in concentration tower reboiler, is concentrated and is boiled again, and obtaining mass percentage concentration is 23%
Hydrochloric acid simultaneously passes through the conveying storage of concentration tower discharging pump；
F) after the reaction was completed, concentration column overhead generates acid waste water and light-component gas for concentration, then passes through light-component gas
Overhead condenser is concentrated and carries out condensation process, and combines vacuumize process, in the treatment process, the acid waste water of generation and concentration
Column overhead generates acid waste water centralized collection together, send to recycling sink and carries out subsequent processing；
G) hydrochloric acid that the concentration in e) step in gelled acid storage tank is 23% is sent out by concentrated hydrochloric acid discharge pipe J, concentration is
23% waste hydrochloric acid is sent by concentrated hydrochloric acid discharge pipe I to combined absorbing tower and 1% acid waste water of concentration < from recycling sink
31% hydrochloric acid is absorbed into, then send to concentrated hydrochloric acid storage tank and carries out iterative cycles, obtains effective concentrated hydrochloric acid finished product.
The present invention has the advantages that
(1) waste hydrochloric acid differential pressure regeneration treatment system and regeneration treating method of the present invention send the waste hydrochloric acid that concentration is 31% to parsing
System carries out positive pressure heating parsing, obtains the dilute hydrochloric acid that concentration is 19%, then again send obtained dilute hydrochloric acid into concentration systems
Concentration tower carry out negative pressure concentration, obtain concentration be 23% concentrated hydrochloric acid, finally again by concentration be 23% concentrated hydrochloric acid pass sequentially through
Tower reboiler is concentrated in concentration systems and concentration acid cooler carries out water evaporation, obtains concentrated hydrochloric acid that concentration is 23% and concentration is
31% waste hydrochloric acid, the waste hydrochloric acid that concentration is 31% passes sequentially through resolution system again and concentration systems carry out iterative cycles, is had
The concentrated hydrochloric acid finished product of effect；Meanwhile hydrogen chloride/water mixed gas obtained in resolving is sufficiently recycled, Neng Gou great
The big concentration for guaranteeing concentrated hydrochloric acid finished product, improves the utilization of resources；
(2) waste hydrochloric acid differential pressure regeneration treatment system of the present invention, wherein concentrated hydrochloric acid pump, dilute hydrochloric acid pump, concentration tower discharging pump, concentration
Sour delivery pump, vacuum condensation water pump, recovered water pump and heat-exchanger pump be it is multiple be arranged in parallel, and then can greatly improve entire useless
The treatment effeciency of hydrochloric acid differential pressure regeneration treatment system；
(3) waste hydrochloric acid differential pressure regeneration treatment system of the present invention, wherein the setting of residual heat system can make resolution system and dense
The heat generated in compression system is recycled, and resource utilization is further increased.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of vapo(u)rization system in waste hydrochloric acid differential pressure regeneration treatment system of the present invention.
Fig. 2 is the structural schematic diagram of concentration systems in waste hydrochloric acid differential pressure regeneration treatment system of the present invention.
Fig. 3 is the structural schematic diagram of residual heat system in waste hydrochloric acid differential pressure regeneration treatment system of the present invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment
The present embodiment waste hydrochloric acid differential pressure regeneration treatment system, including resolution system, concentration systems and surplus heat treatment system.
Resolution system, as shown in Figure 1, including concentrated hydrochloric acid storage tank 1, concentrated hydrochloric acid preheater 2, hydrochloric acid cooler 3, Analytic Tower
4, tower reboiler 5, hydrochloric acid first-stage condenser 6, hydrochloric acid secondary condenser 7 are parsed and condenses sour tank 8.
The top of concentrated hydrochloric acid storage tank 1 is respectively equipped with useless concentrated hydrochloric acid feed pipe, the hydrogen chloride gas being connected to concentrated hydrochloric acid storage tank 1
Body discharge pipe A and concentrated hydrochloric acid discharge pipe A is also provided with and communicated with concentrated hydrochloric acid feed pipe on waste hydrochloric acid feed pipe；Dense salt
One side of sour 1 lower end of storage tank has the concentrated hydrochloric acid discharge pipe B that setting is connected to concentrated hydrochloric acid storage tank 1,1 lower end of concentrated hydrochloric acid storage tank
Another side have be connected to concentrated hydrochloric acid storage tank 1 be arranged concentrated hydrochloric acid discharge pipe C；The other end of concentrated hydrochloric acid discharge pipe C
It is connected to setting with concentrated hydrochloric acid discharge pipe A, and has also been arranged in series concentrated hydrochloric acid pump 9 on concentrated hydrochloric acid discharge pipe C；Specific implementation
When, there are two concentrated hydrochloric acid pumps 9, is arranged in parallel on concentrated hydrochloric acid discharge pipe C.
One side of concentrated hydrochloric acid preheater 2 is connected to setting with concentrated hydrochloric acid discharge pipe A, and the top of concentrated hydrochloric acid preheater 2 is set
There is the dilute hydrochloric acid discharge pipe A being connected to concentrated hydrochloric acid preheater 2, the bottom end of concentrated hydrochloric acid preheater 2 is equipped with and concentrated hydrochloric acid preheater 2
The dilute hydrochloric acid discharge pipe B of connection, another side of concentrated hydrochloric acid preheater 2 are equipped with the concentrated hydrochloric acid being connected to concentrated hydrochloric acid preheater 2
Discharge pipe D.
The top of hydrochloric acid cooler 3 is connected to setting with dilute hydrochloric acid discharge pipe B, and the bottom end of hydrochloric acid cooler 3 has
The dilute hydrochloric acid discharge pipe C of setting is connected to hydrochloric acid cooler 3, a side lower part of hydrochloric acid cooler 3 is equipped with and dilute salt
Another side top of the recirculated water water supply pipeline A that acid cooler 3 is connected to, hydrochloric acid cooler 3 are equipped with and hydrochloric acid cooler 3
The recirculated water water return pipeline A of connection.
One side top of Analytic Tower 4 is connected to setting with concentrated hydrochloric acid discharge pipe D, and a side lower part of Analytic Tower 4 has
The dilute hydrochloric acid discharge pipe D of setting, and the other end of dilute hydrochloric acid discharge pipe D and dilute hydrochloric acid discharge pipe B are connected to Analytic Tower 4
Connection setting；The bottom center of Analytic Tower 4 be equipped with Analytic Tower 4 and parsing 5 bottom end of tower reboiler be connected to be arranged dilute hydrochloric acid into
Pipe material A, another side lower part of Analytic Tower 4 are equipped with the chlorination that setting is connected to Analytic Tower 4 and parsing 5 top of tower reboiler
Hydrogen/water mixed gas discharge pipe A, the top of Analytic Tower 4 are equipped with the hydrogen chloride/water mixed gas discharging being connected to Analytic Tower 4
Pipeline B.
One side of parsing tower reboiler 5 is disposed with the saturation being connected to parsing tower reboiler 5 from top to bottom and steams
Vapour admission line A, condensed water water inlet line A and condensed water outlet conduit A.
The top of hydrochloric acid first-stage condenser 6 is connected to setting with hydrogen chloride/water mixed gas discharge pipe B, and hydrochloric acid level-one is cold
The bottom end of condenser 6 has a concentrated hydrochloric acid discharge pipe E for be connected to and being arranged with hydrochloric acid first-stage condenser 6, and the one of hydrochloric acid first-stage condenser 6
Side top is provided with the circulating backwater pipeline B being connected to hydrochloric acid first-stage condenser 6, another side of hydrochloric acid first-stage condenser 6
It is disposed with the circulation water supply pipeline B being connected to hydrochloric acid first-stage condenser 6 and hydrogen chloride/water mixed gas discharging from top to bottom
Pipeline C.
The top of hydrochloric acid secondary condenser 7 is connected to setting with hydrogen chloride/water mixed gas discharge pipe C, and hydrochloric acid second level is cold
The bottom end of condenser 7 has the concentrated hydrochloric acid discharge pipe F for be connected to and being arranged with hydrochloric acid secondary condenser 7, and concentrated hydrochloric acid discharge pipe F
The other end is connected to setting with concentrated hydrochloric acid discharge pipe E；One side top of hydrochloric acid secondary condenser 7 is provided with cold with hydrochloric acid second level
The circulating backwater pipeline C that condenser 7 is connected to, another side of hydrochloric acid secondary condenser 7 is disposed with and hydrochloric acid two from top to bottom
The circulation water supply pipeline C and hydrogen chloride gas discharge pipe B that grade condenser 7 is connected to.
The top for condensing sour tank 8 be connected to setting with concentrated hydrochloric acid discharge pipe E, the top of condensation acid tank 8 be additionally provided with it is cold
The hydrogen chloride gas discharge pipe C that solidifying acid tank 8 is connected to, and hydrogen chloride gas discharge pipe C and hydrogen chloride gas discharge pipe B connects
Logical setting；The side lower part for condensing sour tank 8 is connected to setting with the concentrated hydrochloric acid feed pipe on waste hydrochloric acid feed pipe.
Concentration systems, as shown in Fig. 2, again including dilute hydrochloric acid storage tank 10, dilute hydrochloric acid flash tank 11, concentration tower 12, concentration tower
Boil device 13, concentration acid cooler 14, gelled acid storage tank 15, concentration overhead condenser 16, vacuum buffer tank 17 and water flow jet
Pump vacuum pump set 18.
The top of dilute hydrochloric acid storage tank 10 is connected to setting, dilute hydrochloric acid storage with the dilute hydrochloric acid discharge pipe C in hydrochloric acid cooler 3
The top of slot 10 further respectively has the hydrogen chloride gas discharge pipe D and dilute hydrochloric acid discharge pipe being connected to dilute hydrochloric acid storage tank 10
E；One side of 10 lower end of dilute hydrochloric acid storage tank has the dilute hydrochloric acid discharge pipe F that setting is connected to dilute hydrochloric acid storage tank 10, dilute hydrochloric acid
Another side of 10 lower end of storage tank has the dilute hydrochloric acid discharge pipe G that setting is connected to dilute hydrochloric acid storage tank 10；Dilute hydrochloric acid discharge nozzle
The other end of road G is connected to setting with dilute hydrochloric acid discharge pipe E, and has also been arranged in series dilute hydrochloric acid pump on dilute hydrochloric acid discharge pipe G
19；When it is implemented, being arranged in parallel on dilute hydrochloric acid discharge pipe G there are two dilute hydrochloric acid pumps 19.
One side of dilute hydrochloric acid flash tank 11 is connected to setting with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank 10, and dense
Dilute hydrochloric acid discharge pipe A on hydrochloric acid preheater 2 is also connected to setting with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank 10；It is dilute
The bottom end of hydrochloric acid flash tank 11 is equipped with the dilute hydrochloric acid feed pipe B that setting is connected to dilute hydrochloric acid flash tank 11, dilute hydrochloric acid flash tank
11 top is equipped with the sour gas feed pipe A that setting is connected to dilute hydrochloric acid flash tank 11.
The top center of concentration tower 12 is equipped with the sour gas discharge pipe A being connected to concentration tower 12, the bottom of concentration tower 12
End center is equipped with the concentrated hydrochloric acid discharge pipe H that is connected to concentration tower 12, and be sequentially connected in series on concentrated hydrochloric acid discharge pipe H be provided with it is dense
Contracting tower discharging pump 20 and concentration acid cooler 14；There are two concentration tower discharging pumps 20, is arranged in parallel in concentrated hydrochloric acid discharge pipe H
On；One side of concentration tower 12 is successively connected to setting with sour gas feed pipe A and dilute hydrochloric acid feed pipe B from top to bottom,
And the sour gas discharge pipe B that setting is connected to concentration tower 12 is additionally provided on the concentration tower of the lower end dilute hydrochloric acid feed pipe B；
The top of another side of concentration tower 12 is equipped with the acid waste water discharge pipe A being connected to concentration tower 12.
One side of concentration acid cooler 14 is disposed with from top to bottom to be recycled back to what concentration acid cooler 14 was connected to
Waterpipe D and circulation water supply pipeline D；The upper end of gelled acid storage tank 15 is another with the concentrated hydrochloric acid discharge pipe H's on concentration tower 12
End connection setting, the upper end of gelled acid storage tank 15 further respectively has the hydrogen chloride gas discharge pipe being connected to gelled acid storage tank 15
E and concentrated hydrochloric acid discharge pipe I；One side of 15 lower end of gelled acid storage tank has the concentrated hydrochloric acid that setting is connected to gelled acid storage tank 15
Discharge pipe J, another side of 15 lower end of gelled acid storage tank have the concentrated hydrochloric acid discharge nozzle that setting is connected to gelled acid storage tank 15
Road K；The other end of concentrated hydrochloric acid discharge pipe K is connected to setting with concentrated hydrochloric acid discharge pipe I, and also goes here and there on concentrated hydrochloric acid discharge pipe K
Connection is provided with gelled acid delivery pump 21；In embodiment, there are two gelled acid delivery pumps 21, is arranged in parallel in concentrated hydrochloric acid discharge pipe
On K.
The top of concentration tower reboiler 13 is connected to setting with sour gas discharge pipe B, and the bottom end of tower reboiler 13 is concentrated
Center is equipped with the concentrated hydrochloric acid discharge pipe L being connected to concentration tower reboiler 13, and concentrated hydrochloric acid discharge pipe L and concentrated hydrochloric acid discharge nozzle
Road H connection setting；One side of concentration tower reboiler 13 is disposed with from top to bottom satisfies with what concentration tower reboiler 13 was connected to
With steam inlet pipeline B, condensed water water inlet line B and condensed water outlet conduit B.
The top center of concentration overhead condenser 16 is connected to setting with the sour gas discharge pipe A on concentration tower 12, dense
The bottom center of contracting overhead condenser 16 is equipped with the acid waste water discharge pipe B being connected to concentration overhead condenser 16；Concentration tower
One side of top condenser 16 is disposed with the circulating backwater pipeline E being connected to concentration overhead condenser 16 from top to bottom, follows
Ring water supply pipeline E and vacuum lead A, and the other end of vacuum lead A is connected to setting with water flow jet pump vacuum pump set 18.
The top of vacuum buffer tank 17 is connected to setting with acid waste water discharge pipe B, and the top of vacuum buffer tank 17 is also set
There is the vacuum lead B being connected to vacuum buffer tank 17, and the other end of vacuum lead B is connected to setting with vacuum lead A；
The bottom center of vacuum buffer tank 17 is equipped with the acid waste water discharge pipe C being connected to vacuum buffer tank 17, and acid waste water goes out
The other end of pipe material C is connected to setting with acid waste water discharge pipe A, has also been arranged in series on acid waste water discharge pipe C true
Air-cooled condensate pump 22；In embodiment, there are two vacuum condensation water pumps 22, is arranged in parallel on acid waste water discharge pipe C.
Surplus heat treatment system, as shown in Figure 1, Figure 2 and Figure 3, including condensate water pot A23, condensate water pot B24, recycling sink
25 and hot water storgae 26.
Condensate water pot A23 is arranged in series on condensed water outlet conduit A, and the top of condensate water pot A23 and condensed water into
Waterpipe A connection setting；Condensate water pot B24 is arranged in series on condensed water outlet conduit B, and the top of condensate water pot B24 with
Condensed water water inlet line B connection setting, a side of condensate water pot B24 also with the condensed water outlet conduit A on condensate water pot A23
Connection setting.
The top of recycling sink 25 be connected to setting with acid waste water discharge pipe A, the top for recycling sink 25 be additionally provided with and
Recycle the acid waste water discharge pipe D that sink 25 is connected to；One side of recycling 25 lower end of sink is equipped with to be connected to recycling sink 25
Acid waste water discharge pipe E, the other end of acid waste water discharge pipe E is connected to setting with acid waste water discharge pipe D, and acid
Recovered water pump 27 has also been arranged in series on property waste water discharge pipe E；In embodiment, there are two recovered water pumps 27, is arranged in parallel
On acid waste water discharge pipe E, another side of recycling 25 lower end of sink is equipped with the recycle-water pipeline being connected to recycling sink 25.
The top of hot water storgae 26 is connected to setting, the top of hot water storgae 26 with the condensed water outlet conduit B on condensate water pot B24
It is additionally provided with the hot water effluent's pipeline A being connected to hot water storgae 26；One side of 26 lower end of hot water storgae is equipped with and is connected to hot water storgae 26
The other end of hot water effluent's pipeline B, hot water effluent's pipeline B are connected to setting with hot water effluent's pipeline A, and on hot water effluent's pipeline B
Also it has been arranged in series heat-exchanger pump 28；There are two heat-exchanger pumps 28, is arranged in parallel on hot water effluent's pipeline B, 26 lower end of hot water storgae
Another side is equipped with the condensed water outlet conduit C being connected to hot water storgae 26.
The present embodiment uses the regeneration treating method of waste hydrochloric acid differential pressure regeneration treatment system, and regeneration treating method includes as follows
Step:
A) preheating for carrying out useless concentrated hydrochloric acid first, the waste hydrochloric acid that concentration is 31% is passed through in concentrated hydrochloric acid preheater 2 and high-temperature medium
Heat exchange carries out being heated to 65-85 DEG C, and the waste hydrochloric acid that the concentration after preheating is 31% is passed through Analytic Tower；
B) concentration be 31% waste hydrochloric acid in Analytic Tower 4 positive pressure parse, generate concentration be 19% dilute hydrochloric acid, hydrogen chloride gas and
Hydrogen chloride/water mixed gas, hydrogen chloride/water mixed gas in hydrochloric acid that mass percentage concentration is 19% pass through 4 bottom of Analytic Tower
Parsing reboiler 5 evaporate and be precipitated, and condensed by condensed water, condensed hydrogen chloride gas is passed into Analytic Tower again
Middle iterative cycles parsing；
C) hydrogen chloride/water mixed gas that Analytic Tower 4 in b) generates is passed sequentially through into hydrochloric acid first-stage condenser 6, hydrochloric acid second level again
Condenser 7 and the sour tank 8 of condensation condense, and the hydrochloric acid that the mass percentage concentration of generation is 31% is passed through the storage of concentrated hydrochloric acid storage tank 1, condenses
The hydrogen chloride gas generated in the process is exported by hydrogen chloride gas discharge pipe B；
D) dilute hydrochloric acid that the concentration that Analytic Tower 4 in b) generates is 19% is sent to dilute hydrochloric acid flash tank 11, in the effect of pressure difference
Under, gas-liquid separation is carried out, the sour gas after separation is sent to the top of concentration tower 12, and dilute hydrochloric acid is then sent into concentration tower 12
Portion, and 19% hydrochloric acid enters unlatching water flow jet pump vacuum pump set 18 before concentration tower, and sour gas is concentrated with dilute hydrochloric acid
Reaction；
E) after the reaction was completed, 12 tower bottom of concentration tower generates the hydrochloric acid and heavy constituent gas that mass percentage concentration is 23%, then for concentration
It is cooling that the hydrochloric acid that mass percentage concentration is 23% by concentration tower discharging pump 20 is delivered to concentration acid cooler device 14, then send to
Gelled acid storage tank 15 stores；Heavy constituent gas is passed through in concentration tower reboiler 13, is concentrated and is boiled again, it is dense to obtain quality percentage
Spend the hydrochloric acid for 23% and by the conveying storage of concentration tower discharging pump 20；
F) after the reaction was completed, 12 tower top of concentration tower generates acid waste water and light-component gas for concentration, then leads to light-component gas
Cross concentration overhead condenser 16 and carry out condensation process, and combine vacuumize process, in the treatment process, the acid waste water of generation with
12 tower top of concentration tower generates acid waste water centralized collection together, send to recycling sink 25 and carries out subsequent processing；
G) hydrochloric acid that the concentration in e) step in gelled acid storage tank 15 is 23% is sent out by concentrated hydrochloric acid discharge pipe J, concentration is
23% waste hydrochloric acid is sent by concentrated hydrochloric acid discharge pipe I to combined absorbing tower and 1% spent acidic of concentration < from recycling sink 25
Water is absorbed into 31% hydrochloric acid, then is sent to concentrated hydrochloric acid storage tank 1 and carried out iterative cycles, and effective concentrated hydrochloric acid finished product is obtained.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (9)
1. a kind of waste hydrochloric acid differential pressure regeneration treatment system, it is characterised in that: the waste hydrochloric acid differential pressure regeneration treatment system includes solution
Analysis system, concentration systems and surplus heat treatment system,
The resolution system include concentrated hydrochloric acid storage tank, concentrated hydrochloric acid preheater, hydrochloric acid cooler, Analytic Tower, parsing tower reboiler,
Hydrochloric acid first-stage condenser, hydrochloric acid secondary condenser and the sour tank of condensation；
The top of the concentrated hydrochloric acid storage tank is respectively equipped with useless concentrated hydrochloric acid feed pipe, the hydrogen chloride gas being connected to concentrated hydrochloric acid storage tank
Discharge pipe A and concentrated hydrochloric acid discharge pipe A is also provided with and communicated with concentrated hydrochloric acid feed pipe on the waste hydrochloric acid feed pipe；Institute
The side for stating concentrated hydrochloric acid storage tank lower end has the concentrated hydrochloric acid discharge pipe B that setting is connected to concentrated hydrochloric acid storage tank, concentrated hydrochloric acid storage tank
Another side of lower end has the concentrated hydrochloric acid discharge pipe C that setting is connected to concentrated hydrochloric acid storage tank；The concentrated hydrochloric acid discharge pipe C's
The other end is connected to setting with concentrated hydrochloric acid discharge pipe A, and has also been arranged in series concentrated hydrochloric acid pump on concentrated hydrochloric acid discharge pipe C；
One side of the concentrated hydrochloric acid preheater is connected to setting with concentrated hydrochloric acid discharge pipe A, and the top of concentrated hydrochloric acid preheater is equipped with
The dilute hydrochloric acid discharge pipe A being connected to concentrated hydrochloric acid preheater, the bottom end of concentrated hydrochloric acid preheater is equipped with to be connected to concentrated hydrochloric acid preheater
Dilute hydrochloric acid discharge pipe B, another side of concentrated hydrochloric acid preheater is equipped with the concentrated hydrochloric acid discharge nozzle being connected to concentrated hydrochloric acid preheater
Road D；
The top of the hydrochloric acid cooler is connected to setting, the bottom end tool of the hydrochloric acid cooler with dilute hydrochloric acid discharge pipe B
There is the dilute hydrochloric acid discharge pipe C that setting is connected to hydrochloric acid cooler, a side lower part of hydrochloric acid cooler is equipped with and dilute salt
The recirculated water water supply pipeline A of acid cooler connection, another side top of hydrochloric acid cooler is equipped with to be connected with hydrochloric acid cooler
Logical recirculated water water return pipeline A；
One side top of the Analytic Tower is connected to setting with concentrated hydrochloric acid discharge pipe D, a side lower part of Analytic Tower have with
The dilute hydrochloric acid discharge pipe D of Analytic Tower connection setting, and the other end of dilute hydrochloric acid discharge pipe D and dilute hydrochloric acid discharge pipe B connect
Logical setting；The bottom center of the Analytic Tower is equipped with the dilute hydrochloric acid for being connected to setting with Analytic Tower and parsing tower reboiler bottom end and feeds
Pipeline A, another side lower part of the Analytic Tower be equipped be connected to Analytic Tower and parsing tower reboiler top the hydrogen chloride that is arranged/
Water mixed gas discharge pipe A, the top of Analytic Tower are equipped with the hydrogen chloride/water mixed gas discharge pipe B being connected to Analytic Tower；
One side of the parsing tower reboiler is disposed with the saturated vapor being connected to parsing tower reboiler from top to bottom
Admission line A, condensed water water inlet line A and condensed water outlet conduit A；
The top of the hydrochloric acid first-stage condenser is connected to setting, the hydrochloric acid level-one with hydrogen chloride/water mixed gas discharge pipe B
The bottom end of condenser has a concentrated hydrochloric acid discharge pipe E for be connected to and being arranged with hydrochloric acid first-stage condenser, and the one of hydrochloric acid first-stage condenser
Side top is provided with the circulating backwater pipeline B being connected to hydrochloric acid first-stage condenser, and another side of hydrochloric acid first-stage condenser is certainly
The circulation water supply pipeline B being connected to hydrochloric acid first-stage condenser and hydrogen chloride/water mixed gas discharge nozzle are disposed under above
Road C；
The top of the hydrochloric acid secondary condenser is connected to setting, the hydrochloric acid second level with hydrogen chloride/water mixed gas discharge pipe C
The bottom end of condenser has the concentrated hydrochloric acid discharge pipe F for be connected to and being arranged with hydrochloric acid secondary condenser, and concentrated hydrochloric acid discharge pipe F
The other end is connected to setting with concentrated hydrochloric acid discharge pipe E；One side top of the hydrochloric acid secondary condenser is provided with and hydrochloric acid two
The circulating backwater pipeline C of grade condenser connection, another side of hydrochloric acid secondary condenser is disposed with from top to bottom and hydrochloric acid
The circulation water supply pipeline C and hydrogen chloride gas discharge pipe B of secondary condenser connection；
The top for condensing sour tank is connected to setting with concentrated hydrochloric acid discharge pipe E, and the top for condensing sour tank is additionally provided with and condenses
The hydrogen chloride gas discharge pipe C of sour tank connection, and hydrogen chloride gas discharge pipe C is connected to hydrogen chloride gas discharge pipe B
Setting；The side lower part for condensing sour tank is connected to setting with the concentrated hydrochloric acid feed pipe on the waste hydrochloric acid feed pipe；
The concentration systems include dilute hydrochloric acid storage tank, dilute hydrochloric acid flash tank, concentration tower, concentration tower reboiler, concentration acid cooler,
Gelled acid storage tank, concentration overhead condenser, vacuum buffer tank and water flow jet pump vacuum pump set；
The top of the dilute hydrochloric acid storage tank is connected to setting, the dilute hydrochloric acid with the dilute hydrochloric acid discharge pipe C in hydrochloric acid cooler
The top of storage tank further respectively has the hydrogen chloride gas discharge pipe D being connected to dilute hydrochloric acid storage tank and dilute hydrochloric acid discharge pipe E；Institute
The side for stating dilute hydrochloric acid storage tank lower end has the dilute hydrochloric acid discharge pipe F that setting is connected to dilute hydrochloric acid storage tank, dilute hydrochloric acid storage tank
Another side of lower end has the dilute hydrochloric acid discharge pipe G that setting is connected to dilute hydrochloric acid storage tank；The dilute hydrochloric acid discharge pipe G's
The other end is connected to setting with dilute hydrochloric acid discharge pipe E, and has also been arranged in series dilute hydrochloric acid pump on dilute hydrochloric acid discharge pipe G；
One side of the dilute hydrochloric acid flash tank is connected to setting, and concentrated hydrochloric acid with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank
Dilute hydrochloric acid discharge pipe A on preheater is also connected to setting with the dilute hydrochloric acid discharge pipe E on dilute hydrochloric acid storage tank；The dilute hydrochloric acid
The bottom end of flash tank is equipped with the dilute hydrochloric acid feed pipe B that setting is connected to dilute hydrochloric acid flash tank, the top of the dilute hydrochloric acid flash tank
End is equipped with the sour gas feed pipe A that setting is connected to dilute hydrochloric acid flash tank；
The top center of the concentration tower is equipped with the sour gas discharge pipe A being connected to concentration tower, the bottom center of concentration tower
It is sequentially connected in series equipped with the concentrated hydrochloric acid discharge pipe H being connected to concentration tower, and on concentrated hydrochloric acid discharge pipe H and is provided with concentration tower discharging
Pump and concentration acid cooler；One side of the concentration tower from top to bottom successively with sour gas feed pipe A and dilute hydrochloric acid into
Pipe material B connection setting, and the acidity that setting is connected to concentration tower is additionally provided on the concentration tower of the lower end dilute hydrochloric acid feed pipe B
Gas discharge pipeline B；The top of another side of the concentration tower is equipped with the acid waste water discharge pipe A being connected to concentration tower；
One side of the concentration acid cooler is disposed with the recirculation return pipe being connected to concentration acid cooler from top to bottom
Road D and circulation water supply pipeline D；
The upper end of the gelled acid storage tank is connected to setting, the concentration with the other end of the concentrated hydrochloric acid discharge pipe H on concentration tower
The upper end of sour storage tank further respectively has the hydrogen chloride gas discharge pipe E being connected to gelled acid storage tank and concentrated hydrochloric acid discharge pipe I；
One side of gelled acid storage tank lower end has the concentrated hydrochloric acid discharge pipe J that setting is connected to gelled acid storage tank, gelled acid storage
Another side of slot lower end has the concentrated hydrochloric acid discharge pipe K that setting is connected to gelled acid storage tank；The concentrated hydrochloric acid discharge pipe K
The other end setting is connected to concentrated hydrochloric acid discharge pipe I, and be also arranged in series gelled acid conveying on concentrated hydrochloric acid discharge pipe K
Pump；
The top of the concentration tower reboiler is connected to setting with sour gas discharge pipe B, and the bottom center of tower reboiler is concentrated
Equipped with the concentrated hydrochloric acid discharge pipe L being connected to concentration tower reboiler, and concentrated hydrochloric acid discharge pipe L and concentrated hydrochloric acid discharge pipe H connects
Logical setting；One side of the concentration tower reboiler is disposed with the saturated vapor being connected to concentration tower reboiler from top to bottom
Admission line B, condensed water water inlet line B and condensed water outlet conduit B；
The top center of the concentration overhead condenser is connected to setting, concentration tower with the sour gas discharge pipe A on concentration tower
The bottom center of top condenser is equipped with the acid waste water discharge pipe B being connected to concentration overhead condenser；The concentration tower top is cold
One side of condenser is disposed with the circulating backwater pipeline E being connected to concentration overhead condenser, circulation upper hose from top to bottom
Road E and vacuum lead A, and the other end of the vacuum lead A is connected to setting with water flow jet pump vacuum pump set；
The top of the vacuum buffer tank is connected to setting with acid waste water discharge pipe B, the top of vacuum buffer tank be additionally provided with
The vacuum lead B of vacuum buffer tank connection, and the other end of vacuum lead B is connected to setting with vacuum lead A；It is described true
The bottom center of empty buffer tank is equipped with the acid waste water discharge pipe C being connected to vacuum buffer tank, and the acid waste water discharges
The other end of pipeline C is connected to setting with acid waste water discharge pipe A, has also been arranged in series on the acid waste water discharge pipe C
Vacuum condensation water pump；
The surplus heat treatment system includes condensate water pot A, condensate water pot B, recycling sink and hot water storgae；
The condensate water pot A is arranged in series on condensed water outlet conduit A, and the top of condensate water pot A and condensed water water inlet pipe
Road A connection setting；
The condensate water pot B is arranged in series on condensed water outlet conduit B, and the top of condensate water pot B and condensed water water inlet pipe
Road B connection setting, a side of condensate water pot B is also connected to setting with the condensed water outlet conduit A on condensate water pot A；
The top of the recycling sink is connected to setting with acid waste water discharge pipe A, and the top for recycling sink is additionally provided with and recycles
The acid waste water discharge pipe D of sink connection；One side of the recycling sink lower end is equipped with the acidity being connected to recycling sink
The other end of waste water discharge pipe E, the acid waste water discharge pipe E are connected to setting with acid waste water discharge pipe D, and acid
Recovered water pump has also been arranged in series on waste water discharge pipe E；Another side of the recycling sink lower end is equipped with and recycling sink
The recycle-water pipeline of connection；
The top of the hot water storgae is connected to setting with the condensed water outlet conduit B on condensate water pot B, and the top of hot water storgae is additionally provided with
The hot water effluent's pipeline A being connected to hot water storgae；One side of the hot water storgae lower end is equipped with the hot water effluent being connected to hot water storgae
The other end of pipeline B, the hot water effluent's pipeline B are connected to setting with hot water effluent's pipeline A, and also go here and there on hot water effluent's pipeline B
Connection is provided with heat-exchanger pump；Another side of the hot water storgae lower end is equipped with the condensed water outlet conduit C being connected to hot water storgae.
2. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the concentrated hydrochloric acid pump has two
It is a, it is arranged in parallel on concentrated hydrochloric acid discharge pipe C.
3. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the dilute hydrochloric acid pump has two
It is a, it is arranged in parallel on dilute hydrochloric acid discharge pipe G.
4. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the concentration tower discharging pump
There are two, it is arranged in parallel on concentrated hydrochloric acid discharge pipe H.
5. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the gelled acid delivery pump has
It two, is arranged in parallel on concentrated hydrochloric acid discharge pipe K.
6. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the vacuum condensation water pump has
It two, is arranged in parallel on acid waste water discharge pipe C.
7. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: the recovered water pump has two
It is a, it is arranged in parallel on acid waste water discharge pipe E.
8. waste hydrochloric acid differential pressure regeneration treatment system according to claim 1, it is characterised in that: there are two the heat-exchanger pumps,
It is arranged in parallel on hot water effluent's pipeline B.
9. a kind of regeneration treating method using waste hydrochloric acid differential pressure regeneration treatment system described in claim 1, it is characterised in that:
The regeneration treating method includes the following steps:
A) preheating for carrying out useless concentrated hydrochloric acid first, the waste hydrochloric acid that concentration is 31% is passed through in concentrated hydrochloric acid preheater and high-temperature medium
Heat exchange carries out being heated to 65-85 DEG C, and the waste hydrochloric acid that the concentration after preheating is 31% is passed through Analytic Tower；
B) concentration be 31% waste hydrochloric acid in Analytic Tower positive pressure parse, generate concentration be 19% dilute hydrochloric acid, hydrogen chloride gas and
Hydrogen chloride/water mixed gas, hydrogen chloride/water mixed gas in hydrochloric acid that mass percentage concentration is 19% pass through parsing tower bottom
Parsing reboiler evaporate and be precipitated, and condensed by condensed water, condensed hydrogen chloride gas is passed into Analytic Tower again
Middle iterative cycles parsing；
C) that hydrogen chloride/water mixed gas that Analytic Tower in b) generates is passed sequentially through hydrochloric acid first-stage condenser, hydrochloric acid second level again is cold
Condenser and the sour tank condensation of condensation, the hydrochloric acid that the mass percentage concentration of generation is 31% is passed through concentrated hydrochloric acid storage tank and stores, in condensation process
The hydrogen chloride gas of generation is exported by hydrogen chloride gas discharge pipe B；
D) dilute hydrochloric acid that the concentration that Analytic Tower in b) generates is 19% is sent to dilute hydrochloric acid flash tank, under the action of pressure difference, into
Row gas-liquid separation, the sour gas after separation are sent to the top of concentration tower, and dilute hydrochloric acid is then sent to the middle part of concentration tower, and 19% salt
Acid opens water flow jet before entering concentration tower and pumps vacuum pump set, so that sour gas is carried out concentration with dilute hydrochloric acid and reacts；
E) after the reaction was completed, concentration tower tower bottom generates the hydrochloric acid and heavy constituent gas that mass percentage concentration is 23% for concentration, then will
The hydrochloric acid that mass percentage concentration is 23% is delivered to concentration acid cooler device cooling by concentration tower discharging pump 20, then send to concentration
Sour storage tank storage；Heavy constituent gas is passed through in concentration tower reboiler, is concentrated and is boiled again, and obtaining mass percentage concentration is 23%
Hydrochloric acid simultaneously passes through the conveying storage of concentration tower discharging pump；
F) after the reaction was completed, concentration column overhead generates acid waste water and light-component gas for concentration, then passes through light-component gas
Overhead condenser is concentrated and carries out condensation process, and combines vacuumize process, in the treatment process, the acid waste water of generation and concentration
Column overhead generates acid waste water centralized collection together, send to recycling sink and carries out subsequent processing；
G) hydrochloric acid that the concentration in e) step in gelled acid storage tank is 23% is sent out by concentrated hydrochloric acid discharge pipe J, concentration is
23% waste hydrochloric acid is sent by concentrated hydrochloric acid discharge pipe I to combined absorbing tower and 1% acid waste water of concentration < from recycling sink
31% hydrochloric acid is absorbed into, then send to concentrated hydrochloric acid storage tank and carries out iterative cycles, obtains effective concentrated hydrochloric acid finished product.
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| CN2019105992684 | 2019-07-04 | ||
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| CN201910665608.9A Active CN110407173B (en) | 2019-07-04 | 2019-07-23 | Waste acid treatment system and method for treating waste acid by using same |
| CN201910665960.2A Active CN110642228B (en) | 2019-07-04 | 2019-07-23 | Calcium carbide method PVC mercury-containing waste acid treatment system and method for treating waste acid by using same |
| CN201921160576.9U Active CN210683206U (en) | 2019-07-04 | 2019-07-23 | Waste acid treatment system |
| CN201921160101.XU Withdrawn - After Issue CN211111047U (en) | 2019-07-04 | 2019-07-23 | Calcium carbide method PVC mercury-containing waste acid treatment system |
| CN201910724689.5A Active CN110498398B (en) | 2019-07-04 | 2019-08-07 | Waste hydrochloric acid differential pressure regeneration treatment system and regeneration treatment method |
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| CN201910665960.2A Active CN110642228B (en) | 2019-07-04 | 2019-07-23 | Calcium carbide method PVC mercury-containing waste acid treatment system and method for treating waste acid by using same |
| CN201921160576.9U Active CN210683206U (en) | 2019-07-04 | 2019-07-23 | Waste acid treatment system |
| CN201921160101.XU Withdrawn - After Issue CN211111047U (en) | 2019-07-04 | 2019-07-23 | Calcium carbide method PVC mercury-containing waste acid treatment system |
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| CN110407173B (en) * | 2019-07-04 | 2023-06-30 | 南通星球石墨股份有限公司 | Waste acid treatment system and method for treating waste acid by using same |
| CN111606304B (en) * | 2020-06-02 | 2024-08-16 | 贵州兰鑫石墨机电设备制造有限公司 | Dilute hydrochloric acid dechlorination concentration system |
| CN111825062A (en) * | 2020-07-28 | 2020-10-27 | 安徽东至广信农化有限公司 | Method for recovering waste sulfuric acid |
| CN111777041B (en) * | 2020-08-26 | 2024-07-30 | 伊犁南岗化工有限责任公司 | Dilute acid concentration deep analysis device |
| CN111943141A (en) * | 2020-09-02 | 2020-11-17 | 南通山剑防腐科技有限公司 | Hydrochloric acid analysis device with negative pressure dehydration function and analysis process |
| CN115180594B (en) * | 2022-07-11 | 2023-12-26 | 新疆西部合盛硅业有限公司 | Recovery process of wastewater from organosilicon slurry residue treatment |
| CN115385303A (en) * | 2022-08-31 | 2022-11-25 | 鲁西化工集团股份有限公司硅化工分公司 | Dilute hydrochloric acid analysis system and process method thereof |
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| Publication number | Publication date |
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| CN110642228B (en) | 2023-07-21 |
| CN110498398B (en) | 2022-07-19 |
| CN110642228A (en) | 2020-01-03 |
| CN210683206U (en) | 2020-06-05 |
| CN110407173B (en) | 2023-06-30 |
| CN110407173A (en) | 2019-11-05 |
| CN211111047U (en) | 2020-07-28 |
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