CN112047545B - Automatic adding system for regeneration continuous circulation of acid liquid - Google Patents
Automatic adding system for regeneration continuous circulation of acid liquid Download PDFInfo
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- CN112047545B CN112047545B CN202010775813.3A CN202010775813A CN112047545B CN 112047545 B CN112047545 B CN 112047545B CN 202010775813 A CN202010775813 A CN 202010775813A CN 112047545 B CN112047545 B CN 112047545B
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- tank body
- acid
- acid liquor
- filter
- pool
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- 239000002253 acid Substances 0.000 title claims abstract description 158
- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 230000008929 regeneration Effects 0.000 title claims abstract description 22
- 238000011069 regeneration method Methods 0.000 title claims abstract description 22
- 239000002699 waste material Substances 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 40
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 239000008394 flocculating agent Substances 0.000 claims abstract description 31
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 64
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 60
- 238000003756 stirring Methods 0.000 claims description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 41
- 229960002089 ferrous chloride Drugs 0.000 description 9
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C01B7/0712—Purification ; Separation of hydrogen chloride by distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an automatic adding system for continuous circulation of acid liquid regeneration, which belongs to the technical field of acid liquid regeneration, and comprises an acid liquid pool, a No. 1 pump, a filter, a flocculating agent storage tank, a negative pressure evaporator, a condenser, an acid liquid storage tank, a crystallizer and a centrifugal dehydrator, wherein the acid liquid pool is connected with the No. 1 pump; the system comprises an acid liquor pool, a No. 1 pump, a filter and a negative pressure evaporator which are sequentially connected through pipelines, wherein waste acid is filled in the acid liquor pool, the filter is used for filtering solid impurities in the waste acid, a flocculating agent inlet pipe is arranged on the filter, and a flocculating agent storage tank is connected with the filter through the flocculating agent inlet pipe; the invention solves the problem that the acid liquid in the acid liquid tank can not be subjected to regeneration circulation in an electroplating production line.
Description
Technical Field
The invention relates to the technical field of acid liquid regeneration, in particular to an automatic adding system for continuous circulation of acid liquid regeneration.
Background
The electroplating process is characterized in that a workpiece to be plated is used as a cathode and is placed in an electrolyte solution containing certain metal ions, and the metal ions are deposited on the surface of the workpiece when the power is on. The electroplating production is mainly divided into pretreatment, electroplating and post-treatment processes.
The pretreatment of electroplating production comprises the steps of carrying out metal surface treatment by using acid and alkali; pretreatment of the workpiece surface with a surfactant, and the like. The acid used for surface treatment of the existing electroplating production line is generally hydrochloric acid, and after the acid washing frequency is too high, the hydrochloric acid concentration in a hydrochloric acid tank is gradually reduced, and the hydrochloric acid contains a large amount of impurities such as iron ions, organic oil and the like. The mass fraction of the hydrochloric acid solution in the hydrochloric acid tank is about 5-20%, and when the mass fraction of the hydrochloric acid is less than 5%, the hydrochloric acid tank cannot work and cannot be subjected to acid treatment.
In view of this, the present invention provides an automatic adding system for continuous circulation of acid solution regeneration.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic adding system for continuous regeneration circulation of acid liquid, which solves the problem that the acid liquid in an acid liquid tank cannot be regenerated and circulated in an electroplating production line.
In order to realize the purpose, the invention provides the following technical scheme:
an automatic adding system for continuous regeneration circulation of acidic liquid comprises an acidic liquid pool, a No. 1 pump, a filter, a flocculating agent storage tank, a negative pressure evaporator, a condenser, an acidic liquid storage tank, a crystallizer and a centrifugal dehydrator, wherein the acidic liquid pool is connected with the acidic liquid pool;
the acid liquor pool, the No. 1 pump, the filter and the negative pressure evaporator are sequentially connected through pipelines, waste acid is filled in the acid liquor pool, the filter is used for filtering solid impurities in the waste acid, a flocculating agent inlet pipe is arranged on the filter, and the flocculating agent storage tank is connected with the filter through the flocculating agent inlet pipe;
the negative pressure evaporator is provided with a gas outlet and a waste liquid outlet, the negative pressure evaporator passes through the gas outlet and is connected with the condenser pipeline, the negative pressure evaporator passes through the waste liquid outlet and is connected with the crystallizer, the crystallizer and the centrifugal dehydrator pipeline connection, the condenser, the acid liquor storage tank and the acid liquor pool are sequentially connected through pipelines.
More preferably: the acid liquor storage tank is connected with an external water pipe, the acid liquor storage tank is provided with a water inlet, and the external water pipe is communicated with the acid liquor storage tank through the water inlet.
More preferably: the acid liquor storage tank is provided with a hydrochloric acid solution inlet and a regenerated acid inlet, the acid liquor storage tank is connected with the condenser outlet through the regenerated acid inlet, and the hydrochloric acid solution inlet is used for supplementing a hydrochloric acid solution to the acid liquor storage tank.
More preferably: the acid liquor pool comprises a 1# acid liquor pool, a 2# acid liquor pool, a 3# acid liquor pool and a 4# acid liquor pool, wherein the 1# acid liquor pool, the 2# acid liquor pool, the 3# acid liquor pool and the 4# acid liquor pool are respectively connected with the 1# pump pipeline.
More preferably: the filter comprises a tank body, a filtering piece, a stirring device, a sealing plate and a driving device for driving the sealing plate to move up and down;
the tank body comprises an upper tank body and a lower tank body, the upper tank body is connected above the lower tank body in a flange mode, two filtering pieces are arranged, the two filtering pieces are arranged up and down, the upper layer of the filtering piece is located in the upper tank body, and the lower layer of the filtering piece is located in the lower tank body;
the stirring device is positioned below the filtering piece, the sealing plate is positioned below the stirring device, the stirring device and the sealing plate are both arranged on the upper tank body, and a through hole for communicating the upper tank body with the lower tank body is formed in the sealing plate;
a sealing column is arranged in the lower tank body, the sealing column is fixed on the lower filtering piece, and the sealing column is used for plugging the through hole;
the top of the upper tank body is provided with a feeding pipe, the bottom of the lower tank body is provided with a liquid outlet pipe, the lower end of the flocculating agent inlet pipe is positioned below the upper filtering piece, and the upper end of the flocculating agent inlet pipe penetrates through the top of the upper tank body;
agitating unit includes motor, (mixing) shaft and paddle, the motor is installed go up external portion of jar, the (mixing) shaft is located go up internal and one end of jar and pass go up jar body and with motor output shaft, the other end with go up jar body and rotate the connection, the paddle is fixed on the (mixing) shaft and with the coaxial rotation of (mixing) shaft sets up, the paddle with the (mixing) shaft all is located the upper strata filter with between the closing plate.
More preferably: the filter element comprises a fixed frame arranged in the tank body and a filter bag arranged in the tank body;
a supporting plate is fixed in the tank body, the supporting plate is fixed on the inner walls of the upper tank body and the lower tank body, mounting holes are formed in the supporting plate, the fixing frame penetrates through the mounting holes and is mounted in the mounting holes, and the filter bag is located below the supporting plate and is sleeved on the outer surface of the fixing frame;
the guide plate is arranged in the filter bag and fixed on the fixing frame, the top surface of the guide plate is an arc surface, the highest position of the top surface of the guide plate is located in the middle of the guide plate, the lowest position of the top surface of the guide plate is located at the peripheral edge of the top surface of the guide plate, and the peripheral edge of the guide plate is close to the inner side of the filter bag.
More preferably: the inlet pipe includes feeding house steward and feeding branch pipe, the feeding branch pipe is located the feeding house steward lower extreme, feeding branch pipe upper end with the feeding house steward intercommunication, the lower extreme points to the upper strata filter the filter bag just is close to the guide plate.
More preferably: the fixing frame comprises a support ring, a connecting rod and a circular ring;
the upper ends of the connecting rods are fixed on the supporting ring, the lower ends of the connecting rods are fixed on the circular ring, a plurality of connecting rods are arranged, and the connecting rods are uniformly distributed between the supporting ring and the circular ring;
the filter bag cover the connecting rod with on the ring, the guide plate is fixed on the connecting rod and be located a plurality of between the connecting rod.
More preferably: the lower end of the sealing column is fixed on the lower layer and the filtering piece is arranged on the supporting plate, the upper end of the sealing column is fixed with a sealing ring, and the sealing ring is sleeved on the sealing column and used for abutting against the outer surface of the sealing ring and between the inner walls of the through holes.
More preferably: the driving device comprises an air cylinder and a magnet ring, the air cylinder is arranged on one side of the lower part of the upper tank body, and the magnet ring is sleeved on the upper tank body and is in contact with the outer surface of the upper tank body;
the inside iron plate that is provided with of closing plate, the iron plate with magnet circle magnetism is connected, the cylinder is used for driving the iron plate with the magnet circle reciprocates.
In conclusion, the invention has the following beneficial effects: by using the evaporative crystallization technology, gas (HCL) generated by evaporation of the negative pressure evaporator is condensed into dilute hydrochloric acid by the condenser so as to return to the acid liquor pool for reuse. After the waste acid liquor is evaporated and concentrated to make ferrous chloride reach a certain concentration (the ferrous chloride concentration can be raised by adding ferrous chloride-containing liquid into the waste acid liquor), cooling and concentrating to make ferrous chloride be separated out in the form of crystal, then making centrifugal separation by means of centrifugal dewatering machine so as to obtain the crystal of ferrous chloride.
The filter can filter fixed impurities and suspended impurities in the waste acid, the upper filtering piece is primary filtering, the lower filtering piece is secondary filtering, the waste acid liquid passes through the upper filtering piece firstly when being filtered, so that the solid impurities in the waste acid liquid are filtered, then the waste acid liquid is mixed with the flocculating agent, and after the flocculating agent flocculates suspended matters (organic oil, scum and the like) in the waste acid liquid, the waste acid liquid is secondarily filtered through the lower filtering piece, so that the clean waste acid liquid is obtained.
Drawings
FIG. 1 is a block flow diagram of an embodiment, primarily for an automatic addition system embodying continuous circulation of acid liquor regeneration;
FIG. 2 is a schematic sectional view of an embodiment, which is mainly used for embodying the specific structure of the filter;
FIG. 3 is a schematic sectional view of the embodiment, which is mainly used for embodying the internal structure of the upper tank body;
FIG. 4 is a schematic sectional view of the embodiment, which is mainly used for embodying the internal structure of the lower tank body;
FIG. 5 is a schematic view, partly in section, of an embodiment, primarily used to embody a mating structure between a seal plate and a seal post;
FIG. 6 is an enlarged view of the structure A of FIG. 5, primarily illustrating the mating arrangement between the seal plate and the seal post;
FIG. 7 is a schematic structural view of an embodiment, mainly for embodying the structure of the filter element;
fig. 8 is a schematic structural diagram of the embodiment, which is mainly used for embodying the structure of the fixing frame.
In the figure, 1# acid liquor pool; 2. a No. 2 acid liquid pool; 3. a 3# acid liquor pool; 4. 4# acid liquor pool; 5. a filter; 51. a tank body; 511. feeding the tank body; 512. a tank body is arranged; 52. a filter member; 521. a support plate; 522. a filter bag; 523. a fixed mount; 5231. a support ring; 5232. a connecting rod; 5233. a circular ring; 524. a baffle; 53. sealing the column; 54. a liquid outlet pipe; 55. a feed pipe; 551. a feed header; 552. a feed branch pipe; 56. a flocculating agent inlet pipe; 57. a stirring device; 571. a motor; 572. a stirring shaft; 573. a paddle; 58. a drive device; 581. a cylinder; 582. a magnetic ring; 59. a sealing plate; 6. a flocculant storage tank; 7. a negative pressure evaporator; 8. a condenser; 9. an acid liquor storage tank; 10. a crystallizer; 11. a centrifugal dehydrator; 12. a seal ring; 13. a pump # 1; 14. a # 2 pump; 15. a # 3 pump; 16. 4# pump; 17. a through hole; 18. a reinforcing plate; 19. a chute.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): an automatic adding system for continuous circulation of acid liquid regeneration is shown in figures 1-8 and comprises an acid liquid pool, a 1# pump 13, a 2# pump 14, a 3# pump 15, a 4# pump 16, a filter 5, a flocculating agent storage tank 6, a negative pressure evaporator 7, a condenser 8, an acid liquid storage tank 9, a crystallizer 10 and a centrifugal dehydrator 11. The acid liquor pool, the 1# pump 13, the filter 5 and the negative pressure evaporator 7 are connected in sequence through pipelines. The acid liquid pool is filled with waste acid, which is typically sulfuric acid waste liquid or hydrochloric acid waste liquid. The acid liquor pool comprises a 1# acid liquor pool 1, a 2# acid liquor pool 2, a 3# acid liquor pool 3 and a 4# acid liquor pool 4,1# acid liquor pool 1, a 2# acid liquor pool 2, a 3# acid liquor pool 3 and a 4# acid liquor pool 4, and valves are arranged on connecting pipelines of inlets and outlets. 1# sour liquid pond 1, 2# sour liquid pond 2, 3# sour liquid pond 3 and 4# sour liquid pond 4 are parallelly connected setting, 1# sour liquid pond 1, 2# sour liquid pond 2, 3# sour liquid pond 3 and 4# sour liquid pond 4 respectively with 13 pipe connection of 1# pump.
Referring to fig. 1-8, the filter 5 is used to filter out solid impurities in the spent acid, including solid impurities that are not soluble in hydrochloric acid and some suspended particles. The filter 5 is provided with a flocculating agent inlet pipe 56, a flocculating agent is arranged in the flocculating agent storage tank 6, and the flocculating agent storage tank 6 is connected with the filter 5 through the flocculating agent inlet pipe 56. The negative pressure evaporator 7 is provided with a gas outlet and a waste liquid outlet, the negative pressure evaporator 7 is connected with the condenser 8 through a gas outlet and a pipeline, and the negative pressure evaporator 7 is connected with the crystallizer 10 through the waste liquid outlet. The crystallizer 10 is connected with the centrifugal dehydrator 11 through a pipeline, and the condenser 8, the acid liquor storage tank 9 and the acid liquor pool are sequentially connected through a pipeline.
In the technical scheme, by utilizing an evaporative crystallization technology, gas (HCL) generated by evaporation of the negative pressure evaporator 7 is condensed into dilute hydrochloric acid through the condenser 8 so as to return to the acid liquor pool for reuse. After the waste acid solution is evaporated and concentrated to a certain concentration (a liquid containing ferrous chloride can be added into the waste acid solution to increase the concentration of the ferrous chloride), the waste acid solution is cooled and concentrated to separate out the ferrous chloride in a crystallized form, and then the waste acid solution is centrifugally separated by a centrifugal dehydrator 11 to obtain crystals of the ferrous chloride.
Referring to fig. 1-8, an external water pipe is connected to the acid storage tank 9, and a water inlet is provided in the acid storage tank 9, and the external water pipe is communicated with the acid storage tank 9 through the water inlet. The acid liquor storage tank 9 is provided with a hydrochloric acid solution inlet and a regenerated acid inlet, the acid liquor storage tank 9 is connected with the outlet of the condenser 8 through the regenerated acid inlet, and the hydrochloric acid solution inlet is used for supplementing a hydrochloric acid solution into the acid liquor storage tank 9. The No. 2 pump 14 is installed on the connecting pipeline of the acid liquor pool and the acid liquor storage tank 9, the No. 3 pump 15 is installed on the pipeline used for connecting the hydrochloric acid solution inlet, and the No. 4 pump 16 is installed on the external water receiving pipe.
In the above technical solution, after the hydrochloric acid solution is continuously regenerated and circulated, the hydrochloric acid solution in the acid solution storage tank 9 is less and less, and therefore, the hydrochloric acid solution inlet is formed in the acid solution storage tank 9, so that hydrochloric acid is supplemented to the acid solution storage tank 9 through the hydrochloric acid solution inlet, and the acid washing requirement is met. The hydrochloric acid solution for acid cleaning is generally 5-20% hydrochloric acid, and with continuous regeneration circulation of the hydrochloric acid solution, as the regenerated acid is the acid solution obtained by condensing HCL gas, the regenerated acid basically contains no other impurities and has higher concentration, therefore, water needs to be supplemented for the purpose, so that the acidic solution for acid cleaning is about 5-20% hydrochloric acid.
Referring to fig. 1 to 8, the filter 5 includes a tank 51, a filter member 52, a stirring device 57, a flocculant inlet pipe 56, a sealing plate 59, and a driving device 58 for driving the sealing plate 59 to move up and down. The tank 51 comprises an upper tank 511 and a lower tank 512, the bottom of the upper tank 511 is open, the top of the lower tank 512 is open, and the upper tank 511 is connected above the lower tank 512 by a flange, so that the upper tank 511 is communicated with the lower tank 512. The bottom of the lower tank body 512 is fixed with three support legs, and the three support legs are uniformly distributed around the center of the bottom of the lower tank body 512. The filter members 52 are provided in two, two filter members 52 are arranged up and down, the upper filter member 52 is positioned in the upper tank 511, and the lower filter member 52 is positioned in the lower tank 512. The top of the upper tank 511 is provided with a feeding pipe 55, the bottom of the lower tank 512 is provided with a liquid outlet pipe 54, the lower end of the flocculating agent inlet pipe 56 is positioned below the upper filter element 52, and the upper end of the flocculating agent inlet pipe penetrates through the top of the upper tank 511.
In the above technical solution, the upper filtering member 52 is used for primary filtering, the lower filtering member 52 is used for secondary filtering, and when filtering the waste acid solution, the waste acid solution passes through the upper filtering member 52 to remove solid impurities in the waste acid solution, and then is mixed with the flocculating agent, and after the flocculating agent flocculates suspended matters (organic oil, scum, etc.) in the waste acid solution, the waste acid solution is filtered secondarily through the lower filtering member 52, so as to obtain a clean waste acid solution. In order to facilitate the disassembly and assembly of the upper filter element 52 and the lower filter element 52 and the later maintenance, the upper tank 511 and the lower tank 512 are connected by flanges. The lower end of the flocculating agent inlet pipe 56 extends to the lower part of the upper filtering piece 52, and is mainly used for enabling waste acid liquid filtered by the upper filtering piece 52 to be rapidly mixed with flocculating agent so as to carry out secondary filtration through the lower filtering piece 52.
Referring to fig. 1 to 8, the stirring device 57 is located below the filter member 52, and the stirring device 57 and the sealing plate 59 are mounted on the upper tank 511. Stirring device 57 includes a motor 571, a stirring shaft 572, and paddles 573. The motor 571 is arranged at one side of the lower part of the outer part of the upper tank body 511, the stirring shaft 572 is positioned in the upper tank body 511, one end of the stirring shaft 572 penetrates through the upper tank body 511 and is connected with the output shaft of the motor 571, and the other end of the stirring shaft 572 is rotatably connected with the upper tank body 511. Paddle 573 is fixed to stirring shaft 572 and is disposed coaxially with stirring shaft 572, and both paddle 573 and stirring shaft 572 are located between upper filter element 52 and sealing plate 59.
In the above technical solution, the flocculant enters the upper tank 511 through the flocculant inlet pipe 56, and in order to quickly and sufficiently mix the flocculant with the waste acid solution filtered by the upper filter 52, the invention is provided with the stirring device 57. When motor 571 is started, stirring shaft 572 will drive paddles 573 to rotate, so that the flocculant will fully flocculate the suspended matters (organic oil, scum, etc.) in the waste acid solution.
Referring to fig. 1-8, seal plate 59 is positioned below agitator 57, and in particular, seal plate 59 is positioned below agitator shaft 572 and paddles 573 and at the bottom of upper tank 511. In order to move the sealing plate 59 up and down smoothly, it is preferable that a reinforcing plate 18 is fixed to an inner wall of the upper tank 511, a sliding groove 19 is formed in the reinforcing plate 18, and the sealing plate 59 slides up and down in the sliding groove 19. The sealing plate 59 is used to seal the upper tank 511 to prevent the waste acid liquid in the upper tank 511 from entering the lower tank 512. The sealing plate 59 is provided with a circular through hole 17 for communicating the upper tank 511 with the lower tank 512, a sealing column 53 is arranged in the lower tank 512, and the sealing column 53 is used for plugging the through hole 17 to block the upper tank 511 and the lower tank 512. The lower end of the sealing column 53 is fixed on the lower filtering piece 52, and the upper end is used for penetrating in the through hole 17. The lower end of the sealing column 53 is fixed on the lower filtering piece 52, the upper end is fixed with the sealing ring 12, and the sealing ring 12 is sleeved on the sealing column 53 and is used for being tightly propped between the outer surface of the sealing ring 12 and the inner wall of the through hole 17.
In the above technical solution, the driving device 58 drives the sealing plate 59 to move up and down in the sliding groove 19, so as to separate the sealing post 53 from the through hole 17, or insert the sealing plate 59 in the through hole 17. The sealing ring 12 is provided to enhance the connection tightness between the sealing post 53 and the through hole 17, and for the convenience of inserting the sealing post 53, the top of the sealing post 53 is preferably tapered.
Referring to fig. 1 to 8, the driving means 58 includes a cylinder 581 and a magnet ring 582, and the cylinder 581 is installed at a lower side of the outside of the upper case 511 and serves to move the sealing plate 59 and the magnet ring 582 upward and downward. Magnet ring 582 is sleeved on upper tank 511 and contacts with the outer surface of upper tank 511, and magnet ring 582 is positioned below cylinder 581 and fixed on the piston rod of cylinder 581. The inside of the sealing plate 59 is provided with iron blocks which are close to the peripheral edge of the sealing plate 59 and magnetically connected to the magnet ring 582.
In the technical scheme, the magnet ring 582 is magnetically connected with the sealing plate 59 in a magnetic soft connection manner, so that when the air cylinder 581 drives the magnet ring 582 to move up and down, the sealing plate 59 can also move up and down along with the magnet ring 582 to realize the communication or the blockage of the upper tank 511 and the lower tank 512, the communication of the waste acid liquid between the upper tank 511 and the lower tank 512 is controlled, and the upper tank 511 and the lower tank 512 are opened for maintenance, assembly and the like. The surface of the sealing plate 59 needs to be subjected to acid-resistant treatment, and can be sprayed with anticorrosive materials or subjected to other anticorrosive and acid-resistant treatments.
Referring to fig. 1 to 8, the filter member 52 includes a fixed frame 523 provided in the canister 51 and a filter bag 522 installed in the canister 51. A supporting plate 521 is fixed in the tank body 51, the supporting plate 521 is fixed on the inner walls of the upper tank body 511 and the lower tank body 512, and a mounting hole is formed in the supporting plate 521. The fixing frame 523 penetrates through the mounting hole and is mounted in the mounting hole, and the filter bag 522 is located below the support plate 521 and is sleeved on the outer surface of the fixing frame 523. Preferably, the supporting plate 521 is provided with a plurality of mounting holes, and each mounting hole is provided with a fixing frame 523 and a filter bag 522. Specifically, five mounting holes are formed in the support plate 521, and accordingly, five filter bags 522 are arranged in the upper tank body 511 and the lower tank body 512. The lower end of the sealing post 53 is fixed to the support plate 521 of the lower filter member 52. A guide plate 524 is arranged in the filter bag 522, and the guide plate 524 is fixed on the fixing frame 523. The holder 523 includes a support ring 5231, a connection rod 5232 and a circular ring 5233. The support ring 5231 corresponds to the circular ring 5233 up and down, and the support ring 5231 is supported on the support plate 521 and is bolted to the support plate 521. The connecting rods 5232 are vertically arranged, the upper ends of the connecting rods 5232 are fixed on the support ring 5231, the lower ends of the connecting rods 5232 are fixed on the circular ring 5233, the connecting rods 5232 are arranged in a plurality, and the connecting rods 5232 are uniformly distributed between the support ring 5231 and the circular ring 5233. The filter bag 522 is sleeved on the connecting rod 5232 and the circular ring 5233 and is bound and fixed by ropes, and the deflector 524 is fixed on the connecting rod 5232 and is located between the connecting rods 5232.
Referring to fig. 1 to 8, in order to make the waste acid solution flow downwards along the inner wall of the filter bag 522, specifically, the top surface of the deflector 524 is an arc surface, the highest position of the height is located in the middle of the deflector 524, the lowest position of the height is located at the peripheral edge of the top surface of the deflector 524, and the peripheral edge of the deflector 524 is close to the inner side of the filter bag 522. The forward projection of the baffle 524 from top to bottom is circular. More preferably, there are two baffles 524, two baffles 524 are disposed one above the other and the upper baffle 524 is near the bottom of the support ring 5231. In order to direct the acid solution to each filter pocket 522 of the support plate 521 of the upper filter element 52 and reduce the residence time of the spent acid solution above the support plate 521 of the upper filter element 52, specifically, the feeding pipe 55 includes a feeding manifold 551 and a feeding branch pipe 552, the feeding branch pipe 552 is located at the lower end of the feeding manifold 551, the upper end of the feeding branch pipe 552 is communicated with the feeding manifold 551, and the lower end is directed to the filter pocket 522 of the upper filter element 52 and close to the guide plate 524. The height of the lower end surface of the feed branch 552 is lower than the height of the top surface of the support ring 5231 of the upper filter 52, and the height of the lower end surface of the feed branch 552 is higher than the highest height of the top surface of the flow guide plate 524.
It is further preferred that the filter bag 522 is a PTFE filter bag with an effective filtration area of 1m 2 And are available in a variety of sizes ranging from 1 to 200 microns. In order to prevent the solution from leaking out of the gap between the support plate 521 and the support ring 5231, a sealing rubber ring should be disposed between the support plate 521 and the support ring 5231.
In the technical scheme, the waste acid enters the tank body 51 through the feed header pipe 551 and the feed branch pipe 552 and enters the filter bag 522 of the upper filter element 52, and because the guide plate 524 is arranged in the filter bag 522, and the top surface of the guide plate 524 is an arc surface, the peripheral edge of the guide plate 524 is close to the inner side of the filter bag 522, so the waste acid flows downwards along the inner side of the filter bag 522. After the waste acid enters the filter bag 522, solid impurities in the liquid cannot pass through the filter bag 522 due to large particles and can only be accumulated in the filter bag 522, the solution passes through the filter bag 522 outwards and is fully mixed with the flocculating agent under the stirring of the blades 573, the mixed solution enters the filter bag 522 of the lower filter element 52 through the through holes 17 in the sealing plate 59 for secondary filtration, and the treated waste acid is discharged outwards through the liquid outlet pipe 54. The guide plate plays a role in drainage, so that waste acid can flow down along the inner wall of the filter bag 522 to play a role in certain scouring, impurity particles are prevented from being adhered to the inner wall of the filter bag 522, and the blockage of the filter bag 522 is reduced.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.
Claims (9)
1. An automatic addition system of acid liquor regeneration continuous cycle is characterized in that: comprises an acid liquid pool, a No. 1 pump (13), a filter (5), a flocculant storage tank (6), a negative pressure evaporator (7), a condenser (8), an acid liquid storage tank (9), a crystallizer (10) and a centrifugal dehydrator (11);
the acid liquor pool, the No. 1 pump (13), the filter (5) and the negative pressure evaporator (7) are sequentially connected through pipelines, waste acid is filled in the acid liquor pool, the filter (5) is used for filtering solid impurities in the waste acid, a flocculating agent inlet pipe (56) is arranged on the filter (5), and the flocculating agent storage tank (6) is connected with the filter (5) through the flocculating agent inlet pipe (56);
a gas outlet and a waste liquid outlet are formed in the negative pressure evaporator (7), the negative pressure evaporator (7) is connected with the condenser (8) through the gas outlet in a pipeline mode, the negative pressure evaporator (7) is connected with the crystallizer (10) through the waste liquid outlet in a pipeline mode, the crystallizer (10) is connected with the centrifugal dehydrator (11) through a pipeline, and the condenser (8), the acid liquid storage tank (9) and the acid liquid pool are sequentially connected through a pipeline;
the filter (5) comprises a tank body (51), a filter element (52), a stirring device (57), a sealing plate (59) and a driving device (58) for driving the sealing plate (59) to move up and down;
the tank body (51) comprises an upper tank body (511) and a lower tank body (512), the upper tank body (511) is connected above the lower tank body (512) in a flange mode, two filter pieces (52) are arranged, the two filter pieces (52) are arranged up and down, the upper layer of the filter pieces (52) is located in the upper tank body (511), and the lower layer of the filter pieces (52) is located in the lower tank body (512);
the stirring device (57) is positioned below the filtering piece (52), the sealing plate (59) is positioned below the stirring device (57), the stirring device (57) and the sealing plate (59) are both arranged on the upper tank body (511), and a through hole (17) for communicating the upper tank body (511) with the lower tank body (512) is formed in the sealing plate (59);
a sealing column (53) is arranged in the lower tank body (512), the sealing column (53) is fixed on the lower filtering piece (52), and the sealing column (53) is used for plugging the through hole (17);
the top of the upper tank body (511) is provided with a feeding pipe (55), the bottom of the lower tank body (512) is provided with a liquid outlet pipe (54), the lower end of the flocculating agent inlet pipe (56) is positioned below the upper layer of the filtering piece (52), and the upper end of the flocculating agent inlet pipe penetrates through the top of the upper tank body (511);
the stirring device (57) comprises a motor (571), a stirring shaft (572) and a paddle (573), the motor (571) is installed outside the upper tank body (511), the stirring shaft (572) is located in the upper tank body (511), one end of the stirring shaft penetrates through the upper tank body (511) and is connected with an output shaft of the motor (571), the other end of the stirring shaft is connected with the upper tank body (511) in a rotating mode, the paddle (573) is fixed on the stirring shaft (572) and is arranged coaxially with the stirring shaft (572) in a rotating mode, and the paddle (573) and the stirring shaft (572) are located between the upper filter element (52) and the sealing plate (59).
2. The automatic addition system for acid liquor regeneration continuous circulation according to claim 1, characterized in that: the acid liquor storage tank (9) is connected with an external water pipe, the acid liquor storage tank (9) is provided with a water inlet, and the external water pipe is communicated with the acid liquor storage tank (9) through the water inlet.
3. The automatic addition system of acid liquor regeneration continuous cycle according to claim 2, characterized in that: the acid liquor storage tank (9) is provided with a hydrochloric acid solution inlet and a regenerated acid inlet, the acid liquor storage tank (9) is connected with the outlet of the condenser (8) through the regenerated acid inlet, and the hydrochloric acid solution inlet is used for supplementing a hydrochloric acid solution to the acid liquor storage tank (9).
4. The automatic addition system for acid liquor regeneration continuous circulation according to claim 1, characterized in that: the acid liquor pool comprises a 1# acid liquor pool (1), a 2# acid liquor pool (2), a 3# acid liquor pool (3) and a 4# acid liquor pool (4), wherein the 1# acid liquor pool (1), the 2# acid liquor pool (2), the 3# acid liquor pool (3) and the 4# acid liquor pool (4) are respectively connected with a 1# pump (13) through a pipeline.
5. The automatic addition system of acid liquor regeneration continuous circulation according to claim 1, characterized in that: the filter element (52) comprises a fixed frame (523) arranged in the tank body (51) and a filter bag (522) arranged in the tank body (51);
a support plate (521) is fixed in the tank body (51), the support plate (521) is fixed on the inner walls of the upper tank body (511) and the lower tank body (512), a mounting hole is formed in the support plate (521), the fixing frame (523) penetrates through the mounting hole and is mounted in the mounting hole, and the filter bag (522) is positioned below the support plate (521) and is sleeved on the outer surface of the fixing frame (523);
be provided with guide plate (524) in filter bag (522), guide plate (524) are fixed on mount (523), guide plate (524) top surface is the cambered surface and high highest point is located guide plate (524) middle part, high lowest point is located the all around edge of guide plate (524) top surface, guide plate (524) all around edge is close to filter bag (522) inboard.
6. The automatic addition system of acid liquor regeneration continuous cycle according to claim 5, characterized in that: the feeding pipe (55) comprises a feeding main pipe (551) and a feeding branch pipe (552), the feeding branch pipe (552) is positioned at the lower end of the feeding main pipe (551), the upper end of the feeding branch pipe (552) is communicated with the feeding main pipe (551), and the lower end of the feeding branch pipe (552) is directed to the filter bag (522) of the upper layer of the filter pieces (52) and is close to the guide plate (524).
7. The automatic addition system of acid liquor regeneration continuous cycle according to claim 5, characterized in that: the fixing frame (523) comprises a support ring (5231), a connecting rod (5232) and a circular ring (5233);
the upper end of the connecting rod (5232) is fixed on the supporting ring (5231), the lower end of the connecting rod is fixed on the circular ring (5233), a plurality of connecting rods (5232) are arranged, and the connecting rods (5232) are uniformly distributed between the supporting ring (5231) and the circular ring (5233);
the filter bag (522) is sleeved on the connecting rod (5232) and the circular ring (5233), and the guide plate (524) is fixed on the connecting rod (5232) and is positioned between the connecting rods (5232).
8. The automatic addition system of acid liquor regeneration continuous cycle according to claim 7, characterized in that: the lower end of the sealing column (53) is fixed on the lower layer of the filtering piece (52) on the supporting plate (521), the upper end of the sealing column is fixed with a sealing ring (12), the sealing ring (12) is sleeved on the sealing column (53) and is used for abutting against the outer surface of the sealing ring (12) and between the inner walls of the through holes (17).
9. The automatic addition system of acid liquor regeneration continuous circulation according to claim 1, characterized in that: the driving device (58) comprises an air cylinder (581) and a magnet ring (582), the air cylinder (581) is installed on one side of the lower part of the upper tank body (511), and the magnet ring (582) is sleeved on the upper tank body (511) and is in contact with the outer surface of the upper tank body (511);
an iron block is arranged in the sealing plate (59), the iron block is magnetically connected with the magnet ring (582), and the air cylinder (581) is used for driving the iron block and the magnet ring (582) to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010775813.3A CN112047545B (en) | 2020-08-05 | 2020-08-05 | Automatic adding system for regeneration continuous circulation of acid liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010775813.3A CN112047545B (en) | 2020-08-05 | 2020-08-05 | Automatic adding system for regeneration continuous circulation of acid liquid |
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| CN112047545A CN112047545A (en) | 2020-12-08 |
| CN112047545B true CN112047545B (en) | 2023-04-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137620A (en) * | 1999-11-12 | 2001-05-22 | Mitaka Kogyosho:Kk | Filter |
| CN208436544U (en) * | 2018-03-20 | 2019-01-29 | 桐乡市羔羊水泥有限公司 | A kind of cement exhaust dust device with bag |
| CN209791105U (en) * | 2019-01-25 | 2019-12-17 | 青岛浩源石墨有限公司 | Pulse dust collector |
| CN210543597U (en) * | 2019-06-10 | 2020-05-19 | 浙江正裕化学工业有限公司 | Anti-blocking chemical filter |
| CN210631760U (en) * | 2019-09-24 | 2020-05-29 | 吴斌 | Energy-saving sewage treatment system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014144401A (en) * | 2013-01-28 | 2014-08-14 | Horkos Corp | Filter bag |
| CN207175684U (en) * | 2017-08-17 | 2018-04-03 | 无锡诚尔鑫环保装备科技有限公司 | The system that hydrochloric acid and metallic compound are reclaimed from hydrochloric acid pickling waste liquor |
| CN208378639U (en) * | 2018-05-18 | 2019-01-15 | 臧小轲 | A kind of sewage treatment equipment |
| CN108905342A (en) * | 2018-09-30 | 2018-11-30 | 陕西燎原净化设备有限公司 | A kind of filter core self-cleaning filter device |
| CN110454886A (en) * | 2019-08-06 | 2019-11-15 | 安徽宽居电器有限公司 | A kind of air purifier easy to clean |
-
2020
- 2020-08-05 CN CN202010775813.3A patent/CN112047545B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137620A (en) * | 1999-11-12 | 2001-05-22 | Mitaka Kogyosho:Kk | Filter |
| CN208436544U (en) * | 2018-03-20 | 2019-01-29 | 桐乡市羔羊水泥有限公司 | A kind of cement exhaust dust device with bag |
| CN209791105U (en) * | 2019-01-25 | 2019-12-17 | 青岛浩源石墨有限公司 | Pulse dust collector |
| CN210543597U (en) * | 2019-06-10 | 2020-05-19 | 浙江正裕化学工业有限公司 | Anti-blocking chemical filter |
| CN210631760U (en) * | 2019-09-24 | 2020-05-29 | 吴斌 | Energy-saving sewage treatment system |
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| CN112047545A (en) | 2020-12-08 |
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