CN212450617U - Waste hydrochloric acid differential pressure regeneration treatment system - Google Patents
Waste hydrochloric acid differential pressure regeneration treatment system Download PDFInfo
- Publication number
- CN212450617U CN212450617U CN201921268588.3U CN201921268588U CN212450617U CN 212450617 U CN212450617 U CN 212450617U CN 201921268588 U CN201921268588 U CN 201921268588U CN 212450617 U CN212450617 U CN 212450617U
- Authority
- CN
- China
- Prior art keywords
- hydrochloric acid
- communicated
- pipeline
- concentrated
- discharge pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a waste hydrochloric acid differential pressure regeneration processing system, waste hydrochloric acid differential pressure regeneration processing system includes analytic system, concentrated system and surplus heat treatment system, analytic system includes concentrated hydrochloric acid storage tank, concentrated hydrochloric acid preheater, dilute hydrochloric acid cooler, analytic tower reboiler, hydrochloric acid one-level condenser, hydrochloric acid second grade condenser and condensation acid tank; the concentration system comprises a dilute hydrochloric acid storage tank, a dilute hydrochloric acid flash tank, a concentration tower reboiler, a concentrated acid cooler, a concentrated acid storage tank, a concentration tower top condenser, a vacuum buffer tank and a water flow injection pump vacuum unit; the waste heat treatment system comprises a condensed water tank A, a condensed water tank B, a recovery water tank and a hot water tank. The utility model has the advantages that: the utility model discloses useless hydrochloric acid differential pressure regeneration processing system can realize the regeneration cyclic utilization of useless hydrochloric acid and recoverable high concentration hydrochloric acid that obtains.
Description
Technical Field
The invention belongs to the technical field of waste hydrochloric acid treatment, and particularly relates to a waste hydrochloric acid differential pressure regeneration treatment system.
Background
Hydrochloric acid is an important inorganic chemical product and is widely used in the industries of dye, organic synthesis, food processing, printing, dyeing and rinsing, leather, metallurgy, steel and the like.
Hydrochloric acid is highly corrosive, and if waste liquid is not treated, not only is resources wasted, but also the environment is seriously affected. The waste acid is neutralized to be neutral by adding alkali and then is discharged. For many years, great efforts have been made by the majority of technologists to realize the recycling of waste acid, and the main methods include a roasting method, an extraction method and an evaporation method. Wherein the roasting method needs large-scale devices, large investment and high energy consumption, and can cause secondary pollution; the extraction method has complex operation and large investment; although the evaporation method has the advantages of low investment and convenient operation, the concentration of the hydrochloric acid obtained by recovery is low, and the hydrochloric acid cannot be directly used.
Therefore, it is necessary to develop a differential pressure regeneration treatment system for waste hydrochloric acid, which can recycle waste hydrochloric acid and recover high-concentration hydrochloric acid.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a waste hydrochloric acid differential pressure regeneration treatment system which can realize the regeneration and recycling of waste hydrochloric acid and can recover and obtain high-concentration hydrochloric acid.
In order to solve the technical problems, the technical scheme of the invention is as follows: a differential pressure regeneration treatment system for waste hydrochloric acid comprises an analytic system, a concentration system and a waste heat treatment system,
the analysis system comprises a concentrated hydrochloric acid storage tank, a concentrated hydrochloric acid preheater, a dilute hydrochloric acid cooler, an analysis tower reboiler, a hydrochloric acid first-stage condenser, a hydrochloric acid second-stage condenser and a condensed acid tank;
the top end of the concentrated hydrochloric acid storage tank is respectively provided with a waste concentrated hydrochloric acid feeding pipeline, a hydrogen chloride gas discharging pipeline A and a concentrated hydrochloric acid discharging pipeline A which are communicated with the concentrated hydrochloric acid storage tank, and the waste concentrated hydrochloric acid feeding pipeline is also communicated with a concentrated hydrochloric acid feeding pipeline; one side end of the lower end of the concentrated hydrochloric acid storage tank is provided with a concentrated hydrochloric acid discharging pipeline B communicated with the concentrated hydrochloric acid storage tank, and the other side end of the lower end of the concentrated hydrochloric acid storage tank is provided with a concentrated hydrochloric acid discharging pipeline C communicated with the concentrated hydrochloric acid storage tank; the other end of the concentrated hydrochloric acid discharge pipeline C is communicated with the concentrated hydrochloric acid discharge pipeline A, and a concentrated hydrochloric acid pump is also connected in series on the concentrated hydrochloric acid discharge pipeline C;
one side end of the concentrated hydrochloric acid preheater is communicated with a concentrated hydrochloric acid discharge pipeline A, the top end of the concentrated hydrochloric acid preheater is provided with a dilute hydrochloric acid discharge pipeline A communicated with the concentrated hydrochloric acid preheater, the bottom end of the concentrated hydrochloric acid preheater is provided with a dilute hydrochloric acid discharge pipeline B communicated with the concentrated hydrochloric acid preheater, and the other side end of the concentrated hydrochloric acid preheater is provided with a concentrated hydrochloric acid discharge pipeline D communicated with the concentrated hydrochloric acid preheater;
the top end of the dilute hydrochloric acid cooler is communicated with a dilute hydrochloric acid discharge pipeline B, the bottom end of the dilute hydrochloric acid cooler is provided with a dilute hydrochloric acid discharge pipeline C communicated with the dilute hydrochloric acid cooler, the lower part of one side end of the dilute hydrochloric acid cooler is provided with a circulating water upper water pipeline A communicated with the dilute hydrochloric acid cooler, and the upper part of the other side end of the dilute hydrochloric acid cooler is provided with a circulating water return pipeline A communicated with the dilute hydrochloric acid cooler;
the upper part of one side end of the desorption tower is communicated with a concentrated hydrochloric acid discharge pipeline D, the lower part of one side end of the desorption tower is provided with a dilute hydrochloric acid discharge pipeline D communicated with the desorption tower, and the other end of the dilute hydrochloric acid discharge pipeline D is communicated with a dilute hydrochloric acid discharge pipeline B; a dilute hydrochloric acid feeding pipeline A communicated with the bottom of the desorption tower and the bottom of a reboiler of the desorption tower is arranged in the center of the bottom end of the desorption tower, a hydrogen chloride/water mixed gas discharging pipeline A communicated with the top of the reboiler of the desorption tower is arranged at the lower part of the other side end of the desorption tower, and a hydrogen chloride/water mixed gas discharging pipeline B communicated with the desorption tower is arranged at the top end of the desorption tower;
a saturated steam inlet pipeline A, a condensed water inlet pipeline A and a condensed water outlet pipeline A which are communicated with the desorption tower reboiler are sequentially arranged at one side end of the desorption tower reboiler from top to bottom;
the top end of the hydrochloric acid primary condenser is communicated with a hydrogen chloride/water mixed gas discharging pipeline B, the bottom end of the hydrochloric acid primary condenser is provided with a concentrated hydrochloric acid discharging pipeline E communicated with the hydrochloric acid primary condenser, the upper part of one side end of the hydrochloric acid primary condenser is provided with a circulating water returning pipeline B communicated with the hydrochloric acid primary condenser, and the other side end of the hydrochloric acid primary condenser is sequentially provided with a circulating water feeding pipeline B and a hydrogen chloride/water mixed gas discharging pipeline C from top to bottom, wherein the circulating water feeding pipeline B is communicated with the hydrochloric acid primary condenser;
the top end of the hydrochloric acid secondary condenser is communicated with a hydrogen chloride/water mixed gas discharging pipeline C, the bottom end of the hydrochloric acid secondary condenser is provided with a concentrated hydrochloric acid discharging pipeline F communicated with the hydrochloric acid secondary condenser, and the other end of the concentrated hydrochloric acid discharging pipeline F is communicated with a concentrated hydrochloric acid discharging pipeline E; a circulating water return pipeline C communicated with the hydrochloric acid secondary condenser is arranged at the upper part of one side end of the hydrochloric acid secondary condenser, and a circulating water feeding pipeline C and a hydrogen chloride gas discharging pipeline B communicated with the hydrochloric acid secondary condenser are sequentially arranged at the other side end of the hydrochloric acid secondary condenser from top to bottom;
the top end of the condensed acid tank is communicated with a concentrated hydrochloric acid discharge pipeline E, the top end of the condensed acid tank is also provided with a hydrogen chloride gas discharge pipeline C communicated with the condensed acid tank, and the hydrogen chloride gas discharge pipeline C is communicated with a hydrogen chloride gas discharge pipeline B; the lower part of one side end of the condensed acid tank is communicated with a concentrated hydrochloric acid feeding pipeline on the waste concentrated hydrochloric acid feeding pipeline;
the concentration system comprises a dilute hydrochloric acid storage tank, a dilute hydrochloric acid flash tank, a concentration tower reboiler, a concentrated acid cooler, a concentrated acid storage tank, a concentration tower top condenser, a vacuum buffer tank and a water flow injection pump vacuum unit;
the top end of the dilute hydrochloric acid storage tank is communicated with a dilute hydrochloric acid discharge pipeline C on the dilute hydrochloric acid cooler, and a hydrogen chloride gas discharge pipeline D and a dilute hydrochloric acid discharge pipeline E which are communicated with the dilute hydrochloric acid storage tank are respectively arranged at the top end of the dilute hydrochloric acid storage tank; one side end of the lower end of the dilute hydrochloric acid storage tank is provided with a dilute hydrochloric acid discharging pipeline F communicated with the dilute hydrochloric acid storage tank, and the other side end of the lower end of the dilute hydrochloric acid storage tank is provided with a dilute hydrochloric acid discharging pipeline G communicated with the dilute hydrochloric acid storage tank; the other end of the dilute hydrochloric acid discharge pipeline G is communicated with the dilute hydrochloric acid discharge pipeline E, and a dilute hydrochloric acid pump is also connected in series on the dilute hydrochloric acid discharge pipeline G;
one side end of the dilute hydrochloric acid flash tank is communicated with a dilute hydrochloric acid discharge pipeline E on a dilute hydrochloric acid storage tank, and a dilute hydrochloric acid discharge pipeline A on a concentrated hydrochloric acid preheater is also communicated with a dilute hydrochloric acid discharge pipeline E on the dilute hydrochloric acid storage tank; the bottom end of the dilute hydrochloric acid flash tank is provided with a dilute hydrochloric acid feeding pipeline B communicated with the dilute hydrochloric acid flash tank, and the top end of the dilute hydrochloric acid flash tank is provided with an acid gas feeding pipeline A communicated with the dilute hydrochloric acid flash tank;
an acid gas discharge pipeline A communicated with the concentration tower is arranged in the center of the top end of the concentration tower, a concentrated hydrochloric acid discharge pipeline H communicated with the concentration tower is arranged in the center of the bottom end of the concentration tower, and a concentration tower discharge pump and a concentrated acid cooler are sequentially and serially connected to the concentrated hydrochloric acid discharge pipeline H; one side end of the concentration tower is sequentially communicated with the acid gas feeding pipeline A and the dilute hydrochloric acid feeding pipeline B from top to bottom, and an acid gas discharging pipeline B communicated with the concentration tower is further arranged on the concentration tower at the lower end of the dilute hydrochloric acid feeding pipeline B; the upper part of the other side end of the concentration tower is provided with an acidic wastewater discharge pipeline A communicated with the concentration tower;
a circulating water return pipeline D and a circulating water feeding pipeline D which are communicated with the concentrated acid cooler are sequentially arranged at one side end of the concentrated acid cooler from top to bottom;
the upper end of the concentrated acid storage tank is communicated with the other end of a concentrated hydrochloric acid discharge pipeline H on the concentration tower, and the upper end of the concentrated acid storage tank is also respectively provided with a hydrogen chloride gas discharge pipeline E and a concentrated hydrochloric acid discharge pipeline I which are communicated with the concentrated acid storage tank; one side end of the lower end of the concentrated acid storage tank is provided with a concentrated hydrochloric acid discharge pipeline J communicated with the concentrated acid storage tank, and the other side end of the lower end of the concentrated acid storage tank is provided with a concentrated hydrochloric acid discharge pipeline K communicated with the concentrated acid storage tank; the other end of the concentrated hydrochloric acid discharging pipeline K is communicated with a concentrated hydrochloric acid discharging pipeline I, and a concentrated acid delivery pump is also connected in series on the concentrated hydrochloric acid discharging pipeline K;
the top end of the reboiler of the concentration tower is communicated with the acid gas discharge pipeline B, the center of the bottom end of the reboiler of the concentration tower is provided with a concentrated hydrochloric acid discharge pipeline L communicated with the reboiler of the concentration tower, and the concentrated hydrochloric acid discharge pipeline L is communicated with a concentrated hydrochloric acid discharge pipeline H; a saturated steam inlet pipeline B, a condensed water inlet pipeline B and a condensed water outlet pipeline B which are communicated with the reboiler of the concentration tower are sequentially arranged at one side end of the reboiler of the concentration tower from top to bottom;
the center of the top end of the condenser at the top of the concentration tower is communicated with an acid gas discharge pipeline A on the concentration tower, and the center of the bottom end of the condenser at the top of the concentration tower is provided with an acid wastewater discharge pipeline B communicated with the condenser at the top of the concentration tower; a circulating water return pipeline E, a circulating water supply pipeline E and a vacuumizing pipeline A which are communicated with the concentration tower top condenser are sequentially arranged at one side end of the concentration tower top condenser from top to bottom, and the other end of the vacuumizing pipeline A is communicated with a water flow jet pump vacuum unit;
the top end of the vacuum buffer tank is communicated with the acidic wastewater discharge pipeline B, the top end of the vacuum buffer tank is also provided with a vacuumizing pipeline B communicated with the vacuum buffer tank, and the other end of the vacuumizing pipeline B is communicated with the vacuumizing pipeline A; an acidic wastewater discharge pipeline C communicated with the vacuum buffer tank is arranged in the center of the bottom end of the vacuum buffer tank, the other end of the acidic wastewater discharge pipeline C is communicated with the acidic wastewater discharge pipeline A, and a vacuum condensate pump is further connected in series on the acidic wastewater discharge pipeline C;
the waste heat treatment system comprises a condensed water tank A, a condensed water tank B, a recovery water tank and a hot water tank;
the condensed water tank A is arranged on the condensed water outlet pipeline A in series, and the top end of the condensed water tank A is communicated with the condensed water inlet pipeline A;
the condensed water tank B is arranged on the condensed water outlet pipeline B in series, the top end of the condensed water tank B is communicated with the condensed water inlet pipeline B, and one side end of the condensed water tank B is also communicated with the condensed water outlet pipeline A on the condensed water tank A;
the top end of the recovery water tank is communicated with the acidic wastewater discharge pipeline A, and the top end of the recovery water tank is also provided with an acidic wastewater discharge pipeline D communicated with the recovery water tank; an acidic wastewater discharge pipeline E communicated with the recovery water tank is arranged at one side end of the lower end of the recovery water tank, the other end of the acidic wastewater discharge pipeline E is communicated with the acidic wastewater discharge pipeline D, and a recovery water pump is further connected in series on the acidic wastewater discharge pipeline E; a reclaimed water pipeline communicated with the reclaimed water tank is arranged at the other side end of the lower end of the reclaimed water tank;
the top end of the hot water tank is communicated with a condensed water outlet pipeline B on the condensed water tank B, and the top end of the hot water tank is also provided with a hot water outlet pipeline A communicated with the hot water tank; a hot water outlet pipeline B communicated with the hot water tank is arranged at one side end of the lower end of the hot water tank, the other end of the hot water outlet pipeline B is communicated with the hot water outlet pipeline A, and a hot water pump is further arranged on the hot water outlet pipeline B in series; and a condensed water outlet pipeline C communicated with the hot water tank is arranged at the other side end of the lower end of the hot water tank.
Two concentrated hydrochloric acid pumps are arranged on the concentrated hydrochloric acid discharge pipeline C in parallel.
Two dilute hydrochloric acid pumps are arranged on the dilute hydrochloric acid discharge pipeline G in parallel.
Two discharge pumps of the concentration tower are arranged on a concentrated hydrochloric acid discharge pipeline H in parallel.
The concentrated acid delivery pumps are arranged on the concentrated hydrochloric acid discharge pipeline K in parallel.
Two vacuum condensate pumps are arranged on the acidic wastewater discharge pipeline C in parallel.
And the two recovery water pumps are arranged on the acidic wastewater discharge pipeline E in parallel.
The two hot water pumps are arranged on the hot water outlet pipeline B in parallel.
The invention has the advantages that:
(1) the waste hydrochloric acid differential pressure regeneration treatment system comprises a desorption system, an absorption system and a concentration system, wherein the waste hydrochloric acid with the concentration of 31% is sent to the desorption system to be subjected to positive pressure heating desorption, dilute hydrochloric acid with the concentration of 19% is obtained, then the obtained dilute hydrochloric acid is sent to a concentration tower in the concentration system to be subjected to negative pressure concentration, concentrated hydrochloric acid with the concentration of 23% is obtained, finally, the concentrated hydrochloric acid with the concentration of 23% is subjected to water evaporation sequentially through a concentration tower reboiler and a concentrated acid cooler in the concentration system, concentrated hydrochloric acid with the concentration of 23% and waste hydrochloric acid with the concentration of 31% are obtained, and the waste hydrochloric acid with the concentration of 31% is subjected to repeated circulation sequentially through the desorption system and the concentration system, so that an effective concentrated; meanwhile, the hydrogen chloride/water mixed gas obtained in the resolving process is fully recycled, so that the concentration of a concentrated hydrochloric acid finished product can be greatly ensured, and the resource utilization is improved;
(2) according to the waste hydrochloric acid differential pressure regeneration treatment system, a concentrated hydrochloric acid pump, a dilute hydrochloric acid pump, a concentration tower discharge pump, a concentrated acid delivery pump, a vacuum condensate pump, a recovery water pump and a hot water pump are all arranged in parallel, so that the treatment efficiency of the whole waste hydrochloric acid differential pressure regeneration treatment system can be greatly improved;
(3) according to the waste hydrochloric acid differential pressure regeneration treatment system, the waste heat system is arranged, so that heat generated in the analysis system and the concentration system can be recycled, and the resource utilization rate is further improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of an evaporation system in a waste hydrochloric acid differential pressure regeneration treatment system according to the present invention.
FIG. 2 is a schematic structural diagram of a concentration system in the waste hydrochloric acid differential pressure regeneration treatment system of the present invention.
FIG. 3 is a schematic structural diagram of a waste heat system in the waste hydrochloric acid differential pressure regeneration treatment system of the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
Examples
The waste hydrochloric acid differential pressure regeneration treatment system comprises an analysis system, a concentration system and a waste heat treatment system.
The desorption system, as shown in fig. 1, includes a concentrated hydrochloric acid storage tank 1, a concentrated hydrochloric acid preheater 2, a dilute hydrochloric acid cooler 3, a desorption tower 4, a desorption tower reboiler 5, a hydrochloric acid primary condenser 6, a hydrochloric acid secondary condenser 7, and a condensed acid tank 8.
The top end of the concentrated hydrochloric acid storage tank 1 is respectively provided with a waste concentrated hydrochloric acid feeding pipeline, a hydrogen chloride gas discharging pipeline A and a concentrated hydrochloric acid discharging pipeline A which are communicated with the concentrated hydrochloric acid storage tank 1, and the waste concentrated hydrochloric acid feeding pipeline is also communicated with a concentrated hydrochloric acid feeding pipeline; one side end of the lower end of the concentrated hydrochloric acid storage tank 1 is provided with a concentrated hydrochloric acid discharging pipeline B communicated with the concentrated hydrochloric acid storage tank 1, and the other side end of the lower end of the concentrated hydrochloric acid storage tank 1 is provided with a concentrated hydrochloric acid discharging pipeline C communicated with the concentrated hydrochloric acid storage tank 1; the other end of the concentrated hydrochloric acid discharging pipeline C is communicated with the concentrated hydrochloric acid discharging pipeline A, and a concentrated hydrochloric acid pump 9 is also connected in series on the concentrated hydrochloric acid discharging pipeline C; in specific implementation, two concentrated hydrochloric acid pumps 9 are arranged on the concentrated hydrochloric acid discharge pipeline C in parallel.
Concentrated hydrochloric acid preheater 2's a side and concentrated hydrochloric acid ejection of compact pipeline A intercommunication setting, concentrated hydrochloric acid preheater 2's top is equipped with the dilute hydrochloric acid ejection of compact pipeline A with concentrated hydrochloric acid preheater 2 intercommunication, and concentrated hydrochloric acid preheater 2's bottom is equipped with the dilute hydrochloric acid ejection of compact pipeline B with concentrated hydrochloric acid preheater 2 intercommunication, and another side of concentrated hydrochloric acid preheater 2 is equipped with the concentrated hydrochloric acid ejection of compact pipeline D with concentrated hydrochloric acid preheater 2 intercommunication.
The top end of the dilute hydrochloric acid cooler 3 is communicated with the dilute hydrochloric acid discharge pipeline B, the bottom end of the dilute hydrochloric acid cooler 3 is provided with a dilute hydrochloric acid discharge pipeline C communicated with the dilute hydrochloric acid cooler 3, the lower part of one side end of the dilute hydrochloric acid cooler 3 is provided with a circulating water upper water pipeline A communicated with the dilute hydrochloric acid cooler 3, and the upper part of the other side end of the dilute hydrochloric acid cooler 3 is provided with a circulating water return pipeline A communicated with the dilute hydrochloric acid cooler 3.
The upper part of one side end of the desorption tower 4 is communicated with a concentrated hydrochloric acid discharge pipeline D, the lower part of one side end of the desorption tower 4 is provided with a dilute hydrochloric acid discharge pipeline D communicated with the desorption tower 4, and the other end of the dilute hydrochloric acid discharge pipeline D is communicated with a dilute hydrochloric acid discharge pipeline B; the center of the bottom end of the analysis tower 4 is provided with a dilute hydrochloric acid feeding pipeline A communicated with the bottom ends of the analysis tower 4 and the analysis tower reboiler 5, the lower part of the other side end of the analysis tower 4 is provided with a hydrogen chloride/water mixed gas discharging pipeline A communicated with the top ends of the analysis tower 4 and the analysis tower reboiler 5, and the top end of the analysis tower 4 is provided with a hydrogen chloride/water mixed gas discharging pipeline B communicated with the analysis tower 4.
A saturated steam inlet pipeline A, a condensed water inlet pipeline A and a condensed water outlet pipeline A which are communicated with the desorption tower reboiler 5 are sequentially arranged at one side end of the desorption tower reboiler 5 from top to bottom.
The top of hydrochloric acid one-level condenser 6 and hydrogen chloride/water mist discharge pipeline B intercommunication set up, the bottom of hydrochloric acid one-level condenser 6 has the concentrated hydrochloric acid discharge pipeline E who sets up with hydrochloric acid one-level condenser 6 intercommunication, one side of hydrochloric acid one-level condenser 6 is served the upper portion and is provided with the circulation return water pipeline B with hydrochloric acid one-level condenser 6 intercommunication, another side top-down of hydrochloric acid one-level condenser 6 has set gradually the circulation water feeding pipeline B and the hydrogen chloride/water mist discharge pipeline C with hydrochloric acid one-level condenser 6 intercommunication.
The top end of the hydrochloric acid secondary condenser 7 is communicated with a hydrogen chloride/water mixed gas discharging pipeline C, the bottom end of the hydrochloric acid secondary condenser 7 is provided with a concentrated hydrochloric acid discharging pipeline F communicated with the hydrochloric acid secondary condenser 7, and the other end of the concentrated hydrochloric acid discharging pipeline F is communicated with a concentrated hydrochloric acid discharging pipeline E; a circulating water return pipeline C communicated with the hydrochloric acid secondary condenser 7 is arranged at the upper part of one side end of the hydrochloric acid secondary condenser 7, and a circulating water feeding pipeline C and a hydrogen chloride gas discharging pipeline B communicated with the hydrochloric acid secondary condenser 7 are sequentially arranged at the other side end of the hydrochloric acid secondary condenser 7 from top to bottom.
The top end of the condensed acid tank 8 is communicated with a concentrated hydrochloric acid discharge pipeline E, the top end of the condensed acid tank 8 is also provided with a hydrogen chloride gas discharge pipeline C communicated with the condensed acid tank 8, and the hydrogen chloride gas discharge pipeline C is communicated with a hydrogen chloride gas discharge pipeline B; the lower part of one side end of the condensed acid tank 8 is communicated with a concentrated hydrochloric acid feeding pipeline on a waste hydrochloric acid feeding pipeline.
The concentration system, as shown in fig. 2, includes a dilute hydrochloric acid storage tank 10, a dilute hydrochloric acid flash tank 11, a concentration tower 12, a concentration tower reboiler 13, a concentrated acid cooler 14, a concentrated acid storage tank 15, a concentrated overhead condenser 16, a vacuum buffer tank 17, and a water jet ejector vacuum unit 18.
The top end of the dilute hydrochloric acid storage tank 10 is communicated with a dilute hydrochloric acid discharge pipeline C on the dilute hydrochloric acid cooler 3, and the top end of the dilute hydrochloric acid storage tank 10 is also respectively provided with a hydrogen chloride gas discharge pipeline D and a dilute hydrochloric acid discharge pipeline E which are communicated with the dilute hydrochloric acid storage tank 10; one side end of the lower end of the dilute hydrochloric acid storage tank 10 is provided with a dilute hydrochloric acid discharge pipeline F communicated with the dilute hydrochloric acid storage tank 10, and the other side end of the lower end of the dilute hydrochloric acid storage tank 10 is provided with a dilute hydrochloric acid discharge pipeline G communicated with the dilute hydrochloric acid storage tank 10; the other end of the dilute hydrochloric acid discharge pipeline G is communicated with the dilute hydrochloric acid discharge pipeline E, and a dilute hydrochloric acid pump 19 is also connected in series on the dilute hydrochloric acid discharge pipeline G; in specific implementation, two dilute hydrochloric acid pumps 19 are arranged on the dilute hydrochloric acid discharge pipeline G in parallel.
One side end of the dilute hydrochloric acid flash tank 11 is communicated with a dilute hydrochloric acid discharge pipeline E on the dilute hydrochloric acid storage tank 10, and a dilute hydrochloric acid discharge pipeline A on the concentrated hydrochloric acid preheater 2 is also communicated with a dilute hydrochloric acid discharge pipeline E on the dilute hydrochloric acid storage tank 10; the bottom end of the dilute hydrochloric acid flash tank 11 is provided with a dilute hydrochloric acid feeding pipeline B communicated with the dilute hydrochloric acid flash tank 11, and the top end of the dilute hydrochloric acid flash tank 11 is provided with an acid gas feeding pipeline A communicated with the dilute hydrochloric acid flash tank 11.
An acid gas discharge pipeline A communicated with the concentration tower 12 is arranged in the center of the top end of the concentration tower 12, a concentrated hydrochloric acid discharge pipeline H communicated with the concentration tower 12 is arranged in the center of the bottom end of the concentration tower 12, and a concentration tower discharge pump 20 and a concentrated acid cooler 14 are sequentially and serially arranged on the concentrated hydrochloric acid discharge pipeline H; two discharge pumps 20 of the concentration tower are arranged on a concentrated hydrochloric acid discharge pipeline H in parallel; one side end of the concentration tower 12 is sequentially communicated with the acid gas feeding pipeline A and the dilute hydrochloric acid feeding pipeline B from top to bottom, and an acid gas discharging pipeline B communicated with the concentration tower 12 is further arranged on the concentration tower at the lower end of the dilute hydrochloric acid feeding pipeline B; the upper part of the other side end of the concentration tower 12 is provided with an acid wastewater discharge pipeline A communicated with the concentration tower 12.
A circulating water return pipeline D and a circulating water feeding pipeline D which are communicated with the concentrated acid cooler 14 are sequentially arranged at one side end of the concentrated acid cooler 14 from top to bottom; the upper end of the concentrated acid storage tank 15 is communicated with the other end of a concentrated hydrochloric acid discharge pipeline H on the concentration tower 12, and the upper end of the concentrated acid storage tank 15 is also respectively provided with a hydrogen chloride gas discharge pipeline E and a concentrated hydrochloric acid discharge pipeline I which are communicated with the concentrated acid storage tank 15; one side end of the lower end of the concentrated acid storage tank 15 is provided with a concentrated hydrochloric acid discharging pipeline J communicated with the concentrated acid storage tank 15, and the other side end of the lower end of the concentrated acid storage tank 15 is provided with a concentrated hydrochloric acid discharging pipeline K communicated with the concentrated acid storage tank 15; the other end of the concentrated hydrochloric acid discharging pipeline K is communicated with the concentrated hydrochloric acid discharging pipeline I, and a concentrated acid delivery pump 21 is also connected in series on the concentrated hydrochloric acid discharging pipeline K; in the embodiment, two concentrated acid delivery pumps 21 are arranged on the concentrated hydrochloric acid discharge pipeline K in parallel.
The top end of the concentration tower reboiler 13 is communicated with the acid gas discharge pipeline B, the center of the bottom end of the concentration tower reboiler 13 is provided with a concentrated hydrochloric acid discharge pipeline L communicated with the concentration tower reboiler 13, and the concentrated hydrochloric acid discharge pipeline L is communicated with a concentrated hydrochloric acid discharge pipeline H; a saturated steam inlet pipeline B, a condensed water inlet pipeline B and a condensed water outlet pipeline B which are communicated with the reboiler 13 of the concentration tower are sequentially arranged at one side end of the reboiler 13 of the concentration tower from top to bottom.
The center of the top end of the concentration tower top condenser 16 is communicated with an acid gas discharge pipeline A on the concentration tower 12, and the center of the bottom end of the concentration tower top condenser 16 is provided with an acid wastewater discharge pipeline B communicated with the concentration tower top condenser 16; one side end of the concentration tower top condenser 16 is sequentially provided with a circulating water return pipeline E, a circulating water feeding pipeline E and a vacuumizing pipeline A from top to bottom, wherein the circulating water return pipeline E is communicated with the concentration tower top condenser 16, and the other end of the vacuumizing pipeline A is communicated with a water flow injection pump vacuum unit 18.
The top end of the vacuum buffer tank 17 is communicated with the acidic wastewater discharge pipeline B, the top end of the vacuum buffer tank 17 is also provided with a vacuumizing pipeline B communicated with the vacuum buffer tank 17, and the other end of the vacuumizing pipeline B is communicated with the vacuumizing pipeline A; an acidic wastewater discharge pipeline C communicated with the vacuum buffer tank 17 is arranged in the center of the bottom end of the vacuum buffer tank 17, the other end of the acidic wastewater discharge pipeline C is communicated with the acidic wastewater discharge pipeline A, and a vacuum condensate pump 22 is further arranged on the acidic wastewater discharge pipeline C in series; in the embodiment, two vacuum condensate pumps 22 are arranged in parallel on the acidic wastewater discharge pipeline C.
The waste heat treatment system, as shown in fig. 1, 2 and 3, includes a condensed water tank a23, a condensed water tank B24, a recovered water tank 25 and a hot water tank 26.
The condensed water tank A23 is arranged on the condensed water outlet pipeline A in series, and the top end of the condensed water tank A23 is communicated with the condensed water inlet pipeline A; the condensed water tank B24 is serially connected to the condensed water outlet pipe B, the top end of the condensed water tank B24 is communicated with the condensed water inlet pipe B, and one side end of the condensed water tank B24 is also communicated with the condensed water outlet pipe A of the condensed water tank A23.
The top end of the recovery water tank 25 is communicated with the acidic wastewater discharge pipeline A, and the top end of the recovery water tank 25 is also provided with an acidic wastewater discharge pipeline D communicated with the recovery water tank 25; an acidic wastewater discharge pipeline E communicated with the recovery water tank 25 is arranged at one side end of the lower end of the recovery water tank 25, the other end of the acidic wastewater discharge pipeline E is communicated with the acidic wastewater discharge pipeline D, and a recovery water pump 27 is also connected in series on the acidic wastewater discharge pipeline E; in the embodiment, two recovery water pumps 27 are provided, and are connected in parallel to the acidic wastewater discharge pipe E, and the other side end of the lower end of the recovery water tank 25 is provided with a recovery water pipe communicated with the recovery water tank 25.
The top end of the hot water tank 26 is communicated with a condensed water outlet pipeline B on a condensed water tank B24, and the top end of the hot water tank 26 is also provided with a hot water outlet pipeline A communicated with the hot water tank 26; a hot water outlet pipeline B communicated with the hot water tank 26 is arranged at one side end of the lower end of the hot water tank 26, the other end of the hot water outlet pipeline B is communicated with the hot water outlet pipeline A, and a hot water pump 28 is also arranged on the hot water outlet pipeline B in series; two hot water pumps 28 are arranged in parallel on the hot water outlet pipe B, and the other side end of the lower end of the hot water tank 26 is provided with a condensed water outlet pipe C communicated with the hot water tank 26.
The working principle of the waste hydrochloric acid differential pressure regeneration treatment system of the embodiment is as follows:
a) preheating waste concentrated hydrochloric acid, introducing the waste hydrochloric acid with the concentration of 31% into a concentrated hydrochloric acid preheater 1 to exchange heat with a high-temperature medium for heating, and introducing the preheated waste hydrochloric acid with the concentration of 31% into an analytical tower 4;
b) the waste hydrochloric acid with the concentration of 31% is subjected to positive pressure heating desorption in the desorption tower 4 to generate dilute hydrochloric acid with the concentration of 19%, hydrogen chloride gas and hydrogen chloride/water mixed gas, the hydrogen chloride/water mixed gas in the hydrochloric acid with the mass percentage concentration of 19% is evaporated and separated out through a desorption reboiler 5 at the bottom of the desorption tower 4 and is condensed through condensed water, and the condensed hydrogen chloride gas is introduced into the desorption tower 4 again for repeated cycle desorption;
c) the hydrogen chloride/water mixed gas generated by the desorption tower 4 in the step B) is condensed by a hydrochloric acid primary condenser 6, a hydrochloric acid secondary condenser 7 and a condensed acid tank 8 in sequence, the generated hydrochloric acid with the mass percentage concentration of 31 percent is introduced into a concentrated hydrochloric acid storage tank 1 for storage, and the hydrogen chloride gas generated in the condensation process is output through a hydrogen chloride gas discharge pipeline B;
d) sending the 19% dilute hydrochloric acid generated by the resolving tower 4 in b) to a dilute hydrochloric acid flash tank 11, carrying out gas-liquid separation under the action of pressure difference, sending the separated acid gas to the upper part of a concentration tower 12, sending the dilute hydrochloric acid to the middle part of the concentration tower 12, and starting a water flow injection pump vacuum unit 18 before the 19% hydrochloric acid enters the concentration tower so as to carry out concentration reaction on the acid gas and the dilute hydrochloric acid;
e) after the concentration reaction is finished, hydrochloric acid with the mass percentage concentration of 23% and heavy component gas are generated at the bottom of the concentration tower 12, then the hydrochloric acid with the mass percentage concentration of 23% is conveyed to a concentrated acid cooler 14 through a discharge pump 20 of the concentration tower for cooling, and then the hydrochloric acid is conveyed to a concentrated acid storage tank 15 for storage; introducing the heavy component gas into a reboiler 13 of a concentration tower, concentrating and reboiling to obtain hydrochloric acid with the mass percentage concentration of 23%, and conveying and storing the hydrochloric acid through a discharge pump 20 of the concentration tower;
f) after the concentration reaction is finished, generating acid wastewater and light component gas at the top of the concentration tower 12, then condensing the light component gas through a concentration tower top condenser 16, and performing vacuum pumping treatment, wherein in the treatment process, the generated acid wastewater and the acid wastewater generated at the top of the concentration tower 12 are collected together in a centralized manner and are sent to a recovery water tank 25 for subsequent treatment;
g) and (3) sending out hydrochloric acid with the concentration of 23% in the concentrated acid storage tank 15 in the step e) through a concentrated hydrochloric acid discharge pipeline J, sending waste hydrochloric acid with the concentration of 23% to a combined absorption tower through a concentrated hydrochloric acid discharge pipeline I, absorbing acid wastewater with the concentration of less than 1% from a recovery water tank 25 into 31% hydrochloric acid, and sending to a concentrated hydrochloric acid storage tank 1 for repeated circulation to obtain an effective concentrated hydrochloric acid finished product.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a waste hydrochloric acid differential pressure regeneration processing system which characterized in that: the waste hydrochloric acid differential pressure regeneration treatment system comprises an analysis system, a concentration system and a waste heat treatment system,
the analysis system comprises a concentrated hydrochloric acid storage tank, a concentrated hydrochloric acid preheater, a dilute hydrochloric acid cooler, an analysis tower reboiler, a hydrochloric acid first-stage condenser, a hydrochloric acid second-stage condenser and a condensed acid tank;
the top end of the concentrated hydrochloric acid storage tank is respectively provided with a waste concentrated hydrochloric acid feeding pipeline, a hydrogen chloride gas discharging pipeline A and a concentrated hydrochloric acid discharging pipeline A which are communicated with the concentrated hydrochloric acid storage tank, and the waste concentrated hydrochloric acid feeding pipeline is also communicated with a concentrated hydrochloric acid feeding pipeline; one side end of the lower end of the concentrated hydrochloric acid storage tank is provided with a concentrated hydrochloric acid discharging pipeline B communicated with the concentrated hydrochloric acid storage tank, and the other side end of the lower end of the concentrated hydrochloric acid storage tank is provided with a concentrated hydrochloric acid discharging pipeline C communicated with the concentrated hydrochloric acid storage tank; the other end of the concentrated hydrochloric acid discharge pipeline C is communicated with the concentrated hydrochloric acid discharge pipeline A, and a concentrated hydrochloric acid pump is also connected in series on the concentrated hydrochloric acid discharge pipeline C;
one side end of the concentrated hydrochloric acid preheater is communicated with a concentrated hydrochloric acid discharge pipeline A, the top end of the concentrated hydrochloric acid preheater is provided with a dilute hydrochloric acid discharge pipeline A communicated with the concentrated hydrochloric acid preheater, the bottom end of the concentrated hydrochloric acid preheater is provided with a dilute hydrochloric acid discharge pipeline B communicated with the concentrated hydrochloric acid preheater, and the other side end of the concentrated hydrochloric acid preheater is provided with a concentrated hydrochloric acid discharge pipeline D communicated with the concentrated hydrochloric acid preheater;
the top end of the dilute hydrochloric acid cooler is communicated with a dilute hydrochloric acid discharge pipeline B, the bottom end of the dilute hydrochloric acid cooler is provided with a dilute hydrochloric acid discharge pipeline C communicated with the dilute hydrochloric acid cooler, the lower part of one side end of the dilute hydrochloric acid cooler is provided with a circulating water upper water pipeline A communicated with the dilute hydrochloric acid cooler, and the upper part of the other side end of the dilute hydrochloric acid cooler is provided with a circulating water return pipeline A communicated with the dilute hydrochloric acid cooler;
the upper part of one side end of the desorption tower is communicated with a concentrated hydrochloric acid discharge pipeline D, the lower part of one side end of the desorption tower is provided with a dilute hydrochloric acid discharge pipeline D communicated with the desorption tower, and the other end of the dilute hydrochloric acid discharge pipeline D is communicated with a dilute hydrochloric acid discharge pipeline B; a dilute hydrochloric acid feeding pipeline A communicated with the bottom of the desorption tower and the bottom of a reboiler of the desorption tower is arranged in the center of the bottom end of the desorption tower, a hydrogen chloride/water mixed gas discharging pipeline A communicated with the top of the reboiler of the desorption tower is arranged at the lower part of the other side end of the desorption tower, and a hydrogen chloride/water mixed gas discharging pipeline B communicated with the desorption tower is arranged at the top end of the desorption tower;
a saturated steam inlet pipeline A, a condensed water inlet pipeline A and a condensed water outlet pipeline A which are communicated with the desorption tower reboiler are sequentially arranged at one side end of the desorption tower reboiler from top to bottom;
the top end of the hydrochloric acid primary condenser is communicated with a hydrogen chloride/water mixed gas discharging pipeline B, the bottom end of the hydrochloric acid primary condenser is provided with a concentrated hydrochloric acid discharging pipeline E communicated with the hydrochloric acid primary condenser, the upper part of one side end of the hydrochloric acid primary condenser is provided with a circulating water returning pipeline B communicated with the hydrochloric acid primary condenser, and the other side end of the hydrochloric acid primary condenser is sequentially provided with a circulating water feeding pipeline B and a hydrogen chloride/water mixed gas discharging pipeline C from top to bottom, wherein the circulating water feeding pipeline B is communicated with the hydrochloric acid primary condenser;
the top end of the hydrochloric acid secondary condenser is communicated with a hydrogen chloride/water mixed gas discharging pipeline C, the bottom end of the hydrochloric acid secondary condenser is provided with a concentrated hydrochloric acid discharging pipeline F communicated with the hydrochloric acid secondary condenser, and the other end of the concentrated hydrochloric acid discharging pipeline F is communicated with a concentrated hydrochloric acid discharging pipeline E; a circulating water return pipeline C communicated with the hydrochloric acid secondary condenser is arranged at the upper part of one side end of the hydrochloric acid secondary condenser, and a circulating water feeding pipeline C and a hydrogen chloride gas discharging pipeline B communicated with the hydrochloric acid secondary condenser are sequentially arranged at the other side end of the hydrochloric acid secondary condenser from top to bottom;
the top end of the condensed acid tank is communicated with a concentrated hydrochloric acid discharge pipeline E, the top end of the condensed acid tank is also provided with a hydrogen chloride gas discharge pipeline C communicated with the condensed acid tank, and the hydrogen chloride gas discharge pipeline C is communicated with a hydrogen chloride gas discharge pipeline B; the lower part of one side end of the condensed acid tank is communicated with a concentrated hydrochloric acid feeding pipeline on the waste concentrated hydrochloric acid feeding pipeline;
the concentration system comprises a dilute hydrochloric acid storage tank, a dilute hydrochloric acid flash tank, a concentration tower reboiler, a concentrated acid cooler, a concentrated acid storage tank, a concentration tower top condenser, a vacuum buffer tank and a water flow injection pump vacuum unit;
the top end of the dilute hydrochloric acid storage tank is communicated with a dilute hydrochloric acid discharge pipeline C on the dilute hydrochloric acid cooler, and a hydrogen chloride gas discharge pipeline D and a dilute hydrochloric acid discharge pipeline E which are communicated with the dilute hydrochloric acid storage tank are respectively arranged at the top end of the dilute hydrochloric acid storage tank; one side end of the lower end of the dilute hydrochloric acid storage tank is provided with a dilute hydrochloric acid discharging pipeline F communicated with the dilute hydrochloric acid storage tank, and the other side end of the lower end of the dilute hydrochloric acid storage tank is provided with a dilute hydrochloric acid discharging pipeline G communicated with the dilute hydrochloric acid storage tank; the other end of the dilute hydrochloric acid discharge pipeline G is communicated with the dilute hydrochloric acid discharge pipeline E, and a dilute hydrochloric acid pump is also connected in series on the dilute hydrochloric acid discharge pipeline G;
one side end of the dilute hydrochloric acid flash tank is communicated with a dilute hydrochloric acid discharge pipeline E on a dilute hydrochloric acid storage tank, and a dilute hydrochloric acid discharge pipeline A on a concentrated hydrochloric acid preheater is also communicated with a dilute hydrochloric acid discharge pipeline E on the dilute hydrochloric acid storage tank; the bottom end of the dilute hydrochloric acid flash tank is provided with a dilute hydrochloric acid feeding pipeline B communicated with the dilute hydrochloric acid flash tank, and the top end of the dilute hydrochloric acid flash tank is provided with an acid gas feeding pipeline A communicated with the dilute hydrochloric acid flash tank;
an acid gas discharge pipeline A communicated with the concentration tower is arranged in the center of the top end of the concentration tower, a concentrated hydrochloric acid discharge pipeline H communicated with the concentration tower is arranged in the center of the bottom end of the concentration tower, and a concentration tower discharge pump and a concentrated acid cooler are sequentially and serially connected to the concentrated hydrochloric acid discharge pipeline H; one side end of the concentration tower is sequentially communicated with the acid gas feeding pipeline A and the dilute hydrochloric acid feeding pipeline B from top to bottom, and an acid gas discharging pipeline B communicated with the concentration tower is further arranged on the concentration tower at the lower end of the dilute hydrochloric acid feeding pipeline B; the upper part of the other side end of the concentration tower is provided with an acidic wastewater discharge pipeline A communicated with the concentration tower;
a circulating water return pipeline D and a circulating water feeding pipeline D which are communicated with the concentrated acid cooler are sequentially arranged at one side end of the concentrated acid cooler from top to bottom;
the upper end of the concentrated acid storage tank is communicated with the other end of a concentrated hydrochloric acid discharge pipeline H on the concentration tower, and the upper end of the concentrated acid storage tank is also respectively provided with a hydrogen chloride gas discharge pipeline E and a concentrated hydrochloric acid discharge pipeline I which are communicated with the concentrated acid storage tank; one side end of the lower end of the concentrated acid storage tank is provided with a concentrated hydrochloric acid discharge pipeline J communicated with the concentrated acid storage tank, and the other side end of the lower end of the concentrated acid storage tank is provided with a concentrated hydrochloric acid discharge pipeline K communicated with the concentrated acid storage tank; the other end of the concentrated hydrochloric acid discharging pipeline K is communicated with a concentrated hydrochloric acid discharging pipeline I, and a concentrated acid delivery pump is also connected in series on the concentrated hydrochloric acid discharging pipeline K;
the top end of the reboiler of the concentration tower is communicated with the acid gas discharge pipeline B, the center of the bottom end of the reboiler of the concentration tower is provided with a concentrated hydrochloric acid discharge pipeline L communicated with the reboiler of the concentration tower, and the concentrated hydrochloric acid discharge pipeline L is communicated with a concentrated hydrochloric acid discharge pipeline H; a saturated steam inlet pipeline B, a condensed water inlet pipeline B and a condensed water outlet pipeline B which are communicated with the reboiler of the concentration tower are sequentially arranged at one side end of the reboiler of the concentration tower from top to bottom;
the center of the top end of the condenser at the top of the concentration tower is communicated with an acid gas discharge pipeline A on the concentration tower, and the center of the bottom end of the condenser at the top of the concentration tower is provided with an acid wastewater discharge pipeline B communicated with the condenser at the top of the concentration tower; a circulating water return pipeline E, a circulating water supply pipeline E and a vacuumizing pipeline A which are communicated with the concentration tower top condenser are sequentially arranged at one side end of the concentration tower top condenser from top to bottom, and the other end of the vacuumizing pipeline A is communicated with a water flow jet pump vacuum unit;
the top end of the vacuum buffer tank is communicated with the acidic wastewater discharge pipeline B, the top end of the vacuum buffer tank is also provided with a vacuumizing pipeline B communicated with the vacuum buffer tank, and the other end of the vacuumizing pipeline B is communicated with the vacuumizing pipeline A; an acidic wastewater discharge pipeline C communicated with the vacuum buffer tank is arranged in the center of the bottom end of the vacuum buffer tank, the other end of the acidic wastewater discharge pipeline C is communicated with the acidic wastewater discharge pipeline A, and a vacuum condensate pump is further connected in series on the acidic wastewater discharge pipeline C;
the waste heat treatment system comprises a condensed water tank A, a condensed water tank B, a recovery water tank and a hot water tank;
the condensed water tank A is arranged on the condensed water outlet pipeline A in series, and the top end of the condensed water tank A is communicated with the condensed water inlet pipeline A;
the condensed water tank B is arranged on the condensed water outlet pipeline B in series, the top end of the condensed water tank B is communicated with the condensed water inlet pipeline B, and one side end of the condensed water tank B is also communicated with the condensed water outlet pipeline A on the condensed water tank A;
the top end of the recovery water tank is communicated with the acidic wastewater discharge pipeline A, and the top end of the recovery water tank is also provided with an acidic wastewater discharge pipeline D communicated with the recovery water tank; an acidic wastewater discharge pipeline E communicated with the recovery water tank is arranged at one side end of the lower end of the recovery water tank, the other end of the acidic wastewater discharge pipeline E is communicated with the acidic wastewater discharge pipeline D, and a recovery water pump is further connected in series on the acidic wastewater discharge pipeline E; a reclaimed water pipeline communicated with the reclaimed water tank is arranged at the other side end of the lower end of the reclaimed water tank;
the top end of the hot water tank is communicated with a condensed water outlet pipeline B on the condensed water tank B, and the top end of the hot water tank is also provided with a hot water outlet pipeline A communicated with the hot water tank; a hot water outlet pipeline B communicated with the hot water tank is arranged at one side end of the lower end of the hot water tank, the other end of the hot water outlet pipeline B is communicated with the hot water outlet pipeline A, and a hot water pump is further arranged on the hot water outlet pipeline B in series; and a condensed water outlet pipeline C communicated with the hot water tank is arranged at the other side end of the lower end of the hot water tank.
2. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: two concentrated hydrochloric acid pumps are arranged on the concentrated hydrochloric acid discharge pipeline C in parallel.
3. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: two dilute hydrochloric acid pumps are arranged on the dilute hydrochloric acid discharge pipeline G in parallel.
4. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: two discharge pumps of the concentration tower are arranged on a concentrated hydrochloric acid discharge pipeline H in parallel.
5. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: the concentrated acid delivery pumps are arranged on the concentrated hydrochloric acid discharge pipeline K in parallel.
6. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: two vacuum condensate pumps are arranged on the acidic wastewater discharge pipeline C in parallel.
7. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: and the two recovery water pumps are arranged on the acidic wastewater discharge pipeline E in parallel.
8. The waste hydrochloric acid differential pressure regeneration treatment system of claim 1, characterized in that: the two hot water pumps are arranged on the hot water outlet pipeline B in parallel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598874 | 2019-07-04 | ||
| CN2019105988744 | 2019-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212450617U true CN212450617U (en) | 2021-02-02 |
Family
ID=68288403
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910724613.2A Pending CN110386591A (en) | 2019-07-04 | 2019-08-07 | A kind of waste hydrochloric acid differential pressure regeneration treatment system |
| CN201921268588.3U Active CN212450617U (en) | 2019-07-04 | 2019-08-07 | Waste hydrochloric acid differential pressure regeneration treatment system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910724613.2A Pending CN110386591A (en) | 2019-07-04 | 2019-08-07 | A kind of waste hydrochloric acid differential pressure regeneration treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110386591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386591A (en) * | 2019-07-04 | 2019-10-29 | 南通星球石墨设备有限公司 | A kind of waste hydrochloric acid differential pressure regeneration treatment system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100554821B1 (en) * | 2004-04-21 | 2006-02-22 | 최일완 | Process and apparatus for recovering hydrochloric acid from waste hydrochloric acid |
| CN101214923A (en) * | 2008-01-04 | 2008-07-09 | 新疆天业（集团）有限公司 | Combined absorption analytical method for hydrochloric acid |
| CN102285641B (en) * | 2010-06-21 | 2013-07-10 | 南通星球石墨设备有限公司 | Recycling process of waste hydrochloric acid |
| DE102013013214A1 (en) * | 2013-08-09 | 2015-02-12 | Logos-Innovationen Gmbh | "Apparatus for recovering water from atmospheric air" |
| CN107161950B (en) * | 2017-06-29 | 2019-04-23 | 天津黄埔盐化工程技术有限公司 | A kind of thickening device and method of low concentration waste hydrochloric acid |
| CN108383085B (en) * | 2018-05-15 | 2023-05-26 | 杭州东日节能技术有限公司 | Device and method for preparing hydrogen chloride gas by full-resolution of hydrochloric acid by continuous method |
| CN108483399A (en) * | 2018-05-29 | 2018-09-04 | 杭州东日节能技术有限公司 | A kind of VCM purification hydrochloric acid full stripping device and technique |
| CN110386591A (en) * | 2019-07-04 | 2019-10-29 | 南通星球石墨设备有限公司 | A kind of waste hydrochloric acid differential pressure regeneration treatment system |
-
2019
- 2019-08-07 CN CN201910724613.2A patent/CN110386591A/en active Pending
- 2019-08-07 CN CN201921268588.3U patent/CN212450617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386591A (en) * | 2019-07-04 | 2019-10-29 | 南通星球石墨设备有限公司 | A kind of waste hydrochloric acid differential pressure regeneration treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110386591A (en) | 2019-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110498398B (en) | Waste hydrochloric acid differential pressure regeneration treatment system and regeneration treatment method | |
| CN110054164B (en) | Concentrated recovery system of dilute sulfuric acid | |
| CN102190341A (en) | Stripping ammonia-removing method based on flash evaporation and heat pump technologies | |
| CN111410251A (en) | Industrial wastewater treatment system based on low-temperature mass transfer concentration technology | |
| CN101664627B (en) | Method and equipment for purifying tail gas generated in producing sodium cyanide by cracking light oil | |
| CN212450617U (en) | Waste hydrochloric acid differential pressure regeneration treatment system | |
| CN202849288U (en) | DMF (dimethyl formamide) rectifying, recovering and recycling system | |
| CN212450615U (en) | Useless hydrochloric acid recovery processing system | |
| CN101913669A (en) | Multi-effect energy-saving ammonia recovery process and device | |
| CN111004144A (en) | Low-concentration DMF concentration recovery process | |
| CN217264857U (en) | Concentration and reuse device for chlorine gas drying waste acid | |
| CN211536560U (en) | Regeneration system containing tar waste acid | |
| CN211255244U (en) | Recycling system of hydrogen chloride water mixed gas | |
| CN113175664B (en) | Recycling device and method for mixed working medium of feed water heating system | |
| CN106809896B (en) | A kind of organic wastewater treating system and method | |
| CN106000009B (en) | A kind of double-tower type MEDA handles landfill gas system | |
| CN110395691B (en) | Regeneration system and regeneration method for waste acid containing tar | |
| CN211111527U (en) | Waste acid treatment system containing organic matters | |
| CN212298944U (en) | Rich oil debenzolization condensate water circulation system of recycling | |
| CN211060451U (en) | Waste heat recovery device in xylose production | |
| CN210595271U (en) | Waste sulfuric acid recycling device for drying chlorine | |
| CN210506160U (en) | NMP retrieves and hypergravity rectification purification system in lithium cell production | |
| CN211536559U (en) | Recovery processing system containing tar waste acid | |
| CN204111354U (en) | A kind of sour water steam stripping at reduced pressure device | |
| CN109368601B (en) | Device and method for producing chlorosulfonic acid from m/p-phthaloyl chloride tail gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |