CN112892064A - Chloride ion removing equipment used in process of industrially producing nickel nitrate - Google Patents
Chloride ion removing equipment used in process of industrially producing nickel nitrate Download PDFInfo
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- CN112892064A CN112892064A CN201911220165.9A CN201911220165A CN112892064A CN 112892064 A CN112892064 A CN 112892064A CN 201911220165 A CN201911220165 A CN 201911220165A CN 112892064 A CN112892064 A CN 112892064A
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- nickel nitrate
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- reaction tank
- pipe
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- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 title claims abstract description 48
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 18
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 7
- 229910001431 copper ion Inorganic materials 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 57
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000006298 dechlorination reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- -1 nitrate ions Chemical class 0.000 description 3
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229940045803 cuprous chloride Drugs 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 1
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses chloride ion removing equipment used in the process of industrially producing nickel nitrate, and relates to the technical field of recovery treatment of waste nickel nitrate solution, comprising a treatment tank, a reaction tank and a filter tank, wherein the left side wall of the reaction tank is communicated with a waste nickel nitrate solution inlet pipe, the inner wall of the reaction tank is provided with a pH value sensor, and the right side wall of the reaction tank is communicated with the side wall of the reaction tank through a first conduit; the top of the reaction tank is provided with a second stirring mechanism and a solid matter feeding pipe, the bottom of the reaction tank is communicated with the side wall of the filtering tank through a second conduit, and a second liquid feeding pump and a second electronic valve are arranged on the second conduit; the inner wall of the filtering tank is provided with a filtering mechanism, the left side wall and the right side wall of the filtering tank are respectively communicated with a third guide pipe and a fourth guide pipe, the inner wall of the filtering tank is provided with a chloride ion concentration detector, and the top of the filtering tank is provided with a flushing mechanism; the method can completely remove chloride ions in the waste nickel nitrate solution, is simple to operate and environment-friendly, is convenient for cleaning the filter screen, and can be repeatedly used.
Description
Technical Field
The invention belongs to the technical field of recovery treatment of waste nickel nitrate solution, and particularly relates to chloride ion removal equipment used in a process of industrially producing nickel nitrate.
Background
In the recovery process of the electroplating hanger, deplating solution (waste nickel nitrate solution) is an important pollution source causing environmental pollution, and the deplating solution (waste nickel nitrate solution) comprises the following main components: 60-80g/L of nickel ions, 20-40g/L of copper ions, 50g/L of nitrate ions, 3-20g/L of chloride ions and 0.3-0.1g/L of iron ions, so that in order to recover the waste nickel nitrate solution and directly prepare a pure nickel nitrate product, the waste nickel nitrate solution needs to be refined, and the problem can be basically solved by extracting cationic impurities by using a P204 or P507 extracting agent, but anions such as chloride ions are difficult to treat.
Recrystallization is frequently used conventionally: chloride ions are left in the mother liquor, then soda solution is added into the mother liquor, water-insoluble nickel carbonate is generated by precipitation, and the chloride ions and sodium ions are removed by washing with deionized water for multiple times, but the method generates waste water, is not environment-friendly and has high cost; and when filtering and precipitating, can often block up the mesh of filter screen, and the filter effect is unsatisfactory, and the filter screen also can not used repeatedly many times.
Disclosure of Invention
Aiming at the problems, the invention provides chloride ion removing equipment used in the process of industrially producing nickel nitrate, which can completely remove chloride ions in the waste nickel nitrate solution, has simple operation, environmental protection and low treatment cost, is convenient for cleaning a filter screen and can be repeatedly used.
In order to achieve the purpose, the invention adopts the technical scheme that: a chloride ion removal device used in the process of industrially producing nickel nitrate comprises a treatment tank, a reaction tank and a filter tank, wherein the top of the reaction tank is provided with a first stirring mechanism, the top of the reaction tank is communicated with an alkali solution cylinder and an acid solution cylinder, the left side wall of the reaction tank is communicated with a waste nickel nitrate solution inlet pipe, the inner wall of the reaction tank is provided with a pH value sensor, the right side wall of the reaction tank is communicated with the side wall of the reaction tank through a first guide pipe, and the first guide pipe is provided with a first liquid feeding pump and a first electronic valve; the top of the reaction tank is provided with a second stirring mechanism and a solid matter feeding pipe, the inner wall of the reaction tank is provided with a temperature sensor and a heating mechanism, the bottom of the reaction tank is communicated with the side wall of the filtering tank through a second conduit, and the second conduit is provided with a second liquid feeding pump and a second electronic valve; the inner wall of filtering tank is equipped with filtering mechanism, the left and right lateral wall of filtering tank communicates respectively has third pipe and fourth pipe, be equipped with the third on the third pipe and send liquid pump and third electronic valve, be equipped with the fourth on the fourth pipe and send liquid pump and fourth electronic valve, the inner wall of filtering tank is equipped with chloride ion concentration detector, the top of filtering tank is equipped with washes the mechanism, the bottom intercommunication of filtering tank has the soil cleaning pipe, be equipped with the valve of decontaminating on the soil cleaning pipe.
As a further improvement of the above technical solution: the utility model discloses a filter tank, including filter mechanism, the both ends of filter screen all are fixed with the pivot, the pivot all rotate install in inside the retainer plate, be located the right side the pivot passes the filter tank lateral wall is connected with the turbine, the outer wall meshing of turbine has the worm, the outside of worm is fixed with the hand wheel through the connecting rod.
As a further improvement of the above technical solution: the outer wall of filter screen has cup jointed the sealing washer, the lower port of retainer plate is fixed with and is used for reminding to rotate the stopper that targets in place.
As a further improvement of the above technical solution: the worm wheel and the worm are both installed inside the fixing seat, the hand wheel is arranged outside the fixing seat, and the fixing seat is fixed on the outer wall of the filter tank.
As a further improvement of the above technical solution: the washing mechanism comprises a main water pipe, the outside of the main water pipe is connected with a water pump through a water pipe, the water pump is connected with a water storage tank on the outer wall, the bottom end of the water pump is communicated with a plurality of branch pipes, and the bottom end of each branch pipe is provided with a high-pressure spray head.
As a further improvement of the above technical solution: first rabbling mechanism with second rabbling mechanism all includes agitator motor, (mixing) shaft and stirring leaf, the (mixing) shaft install in agitator motor's output, the stirring leaf weld in the outer wall of (mixing) shaft.
As a further improvement of the above technical solution: the heating mechanism comprises a heating core rod and a sleeve, the sleeve is made of an anticorrosive material and sleeved on the outer wall of the heating core rod, and the heating core rod and the sleeve are both spiral.
As a further improvement of the above technical solution: the outlets of the third conduit and the fourth conduit are both arranged above the filtering mechanism.
As a further improvement of the above technical solution: the tail end of the third conduit is communicated with the side wall of the treatment tank, and the solution led out by the fourth conduit is subjected to copper ion removal, extraction, evaporation, cooling, crystallization and spin-drying to obtain a nickel nitrate product.
Compared with the prior art, the invention has the advantages that:
1. the method comprises the steps of firstly introducing the waste nickel nitrate solution into a treatment tank 1, adjusting the waste nickel nitrate solution by acid and alkali, then introducing the waste nickel nitrate solution into a reaction tank 2, heating the waste nickel nitrate solution to a certain temperature, and then adding a nickel screen for reaction until chloride ions in the waste nickel nitrate solution are completely removed.
2. The inner wall of the filter tank is provided with the filter mechanism, and the filter mechanism can filter out precipitates generated by reaction, and the precipitates are collected at the bottom of the filter tank and can be subjected to centralized recovery treatment; in addition, the top of the filter tank is provided with a washing mechanism which can carry out back washing on the filter screen in the filter mechanism, so that the mesh of the filter screen is prevented from being blocked, and the filter efficiency is improved; in addition, the angle of the filter screen can be adjusted by rotating the hand wheel, so that the filter screen can be cleaned at multiple angles, and the cleaning effect is improved.
3. The inner wall of the filtering tank is provided with the chloride ion concentration detector, the chloride ion concentration detector can detect the filtered solution, when the concentration of the filtered solution meets the requirement, the fourth liquid feeding pump and the fourth electronic valve are opened, the solution enters the next step of copper ion removal, and if the filtered solution does not meet the discharge requirement of the chloride ion concentration, the third liquid feeding pump and the third electronic valve are opened, and the filtered solution is conveyed into the treating tank again, so that the chloride ions in the waste nickel nitrate solution can be removed circularly, and the dechlorination effect is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic view of the external connection of the water pipe according to the present invention.
Fig. 4 is a schematic view of the internal structure of the filter mechanism of the present invention.
Fig. 5 is a top view of the filter mechanism of the present invention.
In the figure: 1. a treatment tank; 2. a reaction tank; 3. a filter tank; 4. a first stirring mechanism; 5. an alkaline liquid cylinder; 6. an acid liquid cylinder; 7. feeding the waste nickel nitrate solution into a pipe; 8. a pH value sensor; 9. a first conduit; 10. a first liquid feeding pump; 11. a first electronic valve; 12. a second stirring mechanism; 13. a solid matter feed pipe; 14. a temperature sensor; 15. a heating mechanism; 16. a second conduit; 17. a second liquid feeding pump; 18. a second electronic valve; 19. a filtering mechanism; 20. a third conduit; 21. a fourth conduit; 22. a third liquid feeding pump; 23. a third electronic valve; 24. a fourth liquid feeding pump; 25. a fourth electronic valve; 26. a chloride ion concentration detector; 27. a flushing mechanism; 28. cleaning a sewage pipe; 29. a decontamination valve;
41. a stirring motor; 42. a stirring shaft; 43. stirring blades;
151. fixing the screw to heat the core rod; 152. a sleeve;
191. a stationary ring; 192. a filter screen; 193. a rotating shaft; 194. a turbine; 195. a worm; 196. a hand wheel; 197. a seal ring; 198. a limiting block; 199. a fixed seat;
271. a main water pipe; 272. a water delivery pipe; 273. a water pump; 274. a water storage tank; 275. a branch pipe; 276. a high-pressure spray head.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1:
a chloride ion removing device used in the process of industrially producing nickel nitrate is shown in figures 1-4 and comprises a treatment tank 1, a reaction tank 2 and a filter tank 3, wherein the top of the reaction tank 2 is provided with a first stirring mechanism 4, the top of the reaction tank 2 is communicated with an alkaline solution cylinder 5 and an acid solution cylinder 6, the left side wall of the reaction tank 2 is communicated with a waste nickel nitrate solution inlet pipe 7, the inner wall of the reaction tank 2 is provided with a pH value sensor 8, the right side wall of the reaction tank 2 is communicated with the side wall of the reaction tank 2 through a first conduit 9, and the first conduit 9 is provided with a first liquid feeding pump 10 and a first electronic valve 11; the top of the reaction tank 2 is provided with a second stirring mechanism 12 and a solid substance feeding pipe 13, the inner wall of the reaction tank 2 is provided with a temperature sensor 14 and a heating mechanism 15, the bottom of the reaction tank 2 is communicated with the side wall of the filter tank 3 through a second conduit 16, and the second conduit 16 is provided with a second liquid feeding pump 17 and a second electronic valve 18; the inner wall of the filter tank 3 is provided with a filter mechanism 19, the left side wall and the right side wall of the filter tank 3 are respectively communicated with a third conduit 20 and a fourth conduit 21, the outlets of the third conduit 20 and the fourth conduit 21 are respectively arranged above the filter mechanism 19, the third conduit 20 is provided with a third liquid sending pump 22 and a third electronic valve 23, the fourth conduit 21 is provided with a fourth liquid sending pump 24 and a fourth electronic valve 25, the inner wall of the filter tank 3 is provided with a chlorine ion concentration detector 26, the chlorine ion concentration detector 26 can detect the filtered solution, when the requirements are met, the fourth liquid sending pump 24 and the fourth electronic valve 25 are opened, the solution enters the next step of copper ion removal, if the filtered solution does not meet the discharge requirement of the chlorine ion concentration, the third liquid sending pump 22 and the third electronic valve 23 are opened, the filtered solution is conveyed into the treatment tank 1 again, so that the chlorine ions in the waste nickel nitrate solution can be removed circularly, and improves the dechlorination effect.
The top of the filtering tank 3 is provided with a flushing mechanism 27, the bottom of the filtering tank 3 is communicated with a sewage cleaning pipe 28, the sewage cleaning pipe 28 is provided with a sewage cleaning valve 29, the tail end of the third conduit 20 is communicated with the side wall of the treatment tank 1, and the solution led out by the fourth conduit 21 is subjected to copper ion removal, extraction, evaporation, cooling, crystallization and spin-drying to obtain a nickel nitrate product.
The washing mechanism 27 comprises a main water pipe 271, the outside of the main water pipe 271 is connected with a water pump 273 through a water pipe 272, the water pump 273 is connected with a water storage tank 274 on the outer wall, the bottom end of the water pump 273 is communicated with a plurality of branch pipes 275, the bottom end of each branch pipe 275 is provided with a high-pressure spray head 276, and water sprayed by the high-pressure spray heads 276 can clean the filtering mechanism 19; the first stirring mechanism 4 and the second stirring mechanism 12 both comprise a stirring motor 41, a stirring shaft 42 and a stirring blade 43, the stirring shaft 42 is installed at the output end of the stirring motor 41, the stirring blade 43 is welded on the outer wall of the stirring shaft 42, and the first stirring mechanism 4 and the second stirring mechanism 12 can respectively stir the solution in the treatment tank 1 and the reaction tank 2 after being electrified, thereby accelerating the mixing and reaction speed; the heating mechanism 15 includes a heating core rod 151 and a sleeve 152, the sleeve 152 is made of an anticorrosive material and is sleeved on the outer wall of the heating core rod 151, the heating core rod 151 and the sleeve 152 are both spiral, and the reaction solution inside the reaction tank 2 can be heated after the heating core rod 151 is electrified.
Example 2:
further optimization was performed on the basis of example 1 above: the filtering mechanism 19 comprises a fixing ring 191 and a filtering net 192, rotating shafts 193 are fixed at two ends of the filtering net 192, the rotating shafts 193 are rotatably installed inside the fixing ring 191, the rotating shafts 193 on the right side penetrate through the side wall of the filtering tank 3 to be connected with a turbine 194, a worm 195 is meshed with the outer wall of the turbine 194, a hand wheel 196 is fixed outside the worm 195 through a connecting rod, the worm 195 can be further driven to rotate by rotating the hand wheel 196, and the worm 195 can be driven to rotate by rotating the worm 195, so that the filtering net 192 can be further driven to rotate; a sealing ring 197 is sleeved on the outer wall of the filter screen 192, the sealing ring 197 prevents a gap from being formed between the fixing ring 191 and the filter screen 192, and a limiting block 198 for reminding the user to rotate in place is fixed at the lower port of the fixing ring 191; the worm 194 and the worm 195 are both installed inside the fixing seat 199, the hand wheel 196 is arranged outside the fixing seat 199, and the fixing seat 199 is fixed on the outer wall of the filter tank 3.
When the filter screen 192 needs to be washed, on one hand, the washing mechanism 27 can directly back wash the filter screen 192 in the filter mechanism 19, so that the mesh of the filter screen 192 is prevented from being blocked, and the filter efficiency is improved; in addition, the angle of the filter screen 192 can be adjusted by rotating the hand wheel 196, so that the filter screen 192 can be cleaned in multiple angles, and the cleaning effect is improved.
The chemical principle of the invention is as follows: under the condition of certain PH and temperature, adding nickel skin or nickel net into the waste nickel nitrate solution to make the nickel simple substance and the bivalent copper in the nickel nitrate solution generate displacement reaction to generate copper powder, and then the copper powder reacts with the bivalent copper in the nickel nitrate solution and the chloride ions in the solution to generate insoluble cuprous chloride precipitate (CuCl) and remove the chloride ions; the working principle of the invention is as follows: firstly, waste nickel nitrate solution is led into a treatment tank 1, after acid-base regulation, the waste nickel nitrate solution is led into a reaction tank 2 and heated to a certain temperature, then a nickel screen is added for reaction until chloride ions in the waste nickel nitrate solution are completely removed, after the reaction is finished, a first liquid sending pump 10 and a first electronic valve 11 are opened, the mixed solution after the reaction is led into a filter tank 3 by the first liquid sending pump 10, a filter mechanism 19 is arranged on the inner wall of the filter tank 3, precipitates can be filtered by the filter mechanism 19 and are collected at the bottom of the filter tank 3, and the pollution cleaning valve 29 on a pollution cleaning pipe 28 is opened for centralized recovery treatment; the filtered solution can reach the upper part of the filtering mechanism 19, the chloride ion concentration detector 26 can detect the filtered solution, and if the filtered solution does not meet the discharge requirement of chloride ion concentration, the third liquid sending pump 22 and the third electronic valve 23 can be opened to send the filtered solution to the inside of the treatment tank 1 again, so that chloride ions in the waste nickel nitrate solution can be removed circularly, and the dechlorination effect is improved; when the requirement is met, the fourth liquid sending pump 24 and the fourth electronic valve 25 are opened, and the solution led out by the fourth conduit 21 is subjected to copper ion removal, extraction, evaporation, cooling, crystallization and spin-drying to obtain a nickel nitrate product; thus, compared with the traditional process, the method has the advantages of simple operation, environmental protection and low treatment cost.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (9)
1. A chloride ion removing device used in the process of industrially producing nickel nitrate comprises a treatment tank (1), a reaction tank (2) and a filter tank (3), and is characterized in that a first stirring mechanism (4) is arranged at the top of the reaction tank (2), the top of the reaction tank (2) is communicated with an alkali liquor cylinder (5) and an acid liquor cylinder (6), the left side wall of the reaction tank (2) is communicated with a waste nickel nitrate solution inlet pipe (7), the inner wall of the reaction tank (2) is provided with an acidity and alkalinity sensor (8), the right side wall of the reaction tank (2) is communicated with the side wall of the reaction tank (2) through a first conduit (9), and a first liquid feeding pump (10) and a first electronic valve (11) are arranged on the first conduit (9); a second stirring mechanism (12) and a solid substance feeding pipe (13) are arranged at the top of the reaction tank (2), a temperature sensor (14) and a heating mechanism (15) are arranged on the inner wall of the reaction tank (2), the bottom of the reaction tank (2) is communicated with the side wall of the filtering tank (3) through a second conduit (16), and a second liquid feeding pump (17) and a second electronic valve (18) are arranged on the second conduit (16); the inner wall of filter tank (3) is equipped with filtering mechanism (19), the left and right lateral wall of filter tank (3) communicates respectively has third pipe (20) and fourth pipe (21), be equipped with third liquid feeding pump (22) and third electronic valve (23) on third pipe (20), be equipped with fourth liquid feeding pump (24) and fourth electronic valve (25) on fourth pipe (21), the inner wall of filter tank (3) is equipped with chloride ion concentration detector (26), the top of filter tank (3) is equipped with washes mechanism (27), the bottom intercommunication of filter tank (3) has clean pipe (28), be equipped with on clean pipe (28) clean valve (29).
2. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1, wherein the filtering mechanism (19) comprises a fixed ring (191) and a filtering net (192), rotating shafts (193) are fixed at both ends of the filtering net (192), the rotating shafts (193) are rotatably installed inside the fixed ring (191), the rotating shaft (193) located on the right side penetrates through the side wall of the filtering tank (3) to be connected with a turbine (194), a worm (195) is meshed with the outer wall of the turbine (194), and a hand wheel (196) is fixed outside the worm (195) through a connecting rod.
3. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 2, wherein the outer wall of the filter screen (192) is sleeved with a sealing ring (197), and a lower port of the fixing ring (191) is fixed with a limiting block (198) for reminding the rotation in place.
4. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1 or 2, wherein the turbine (194) and the worm (195) are both installed inside a fixed seat (199), the hand wheel (196) is arranged outside the fixed seat (199), and the fixed seat (199) is fixed on the outer wall of the filter tank (3).
5. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1, wherein the washing mechanism (27) comprises a main water pipe (271), the outside of the main water pipe (271) is connected with a water pump (273) through a water pipe (272), the water pump (273) is connected with a water storage tank (274) on the outer wall, the bottom end of the water pump (273) is communicated with a plurality of branch pipes (275), and the bottom end of each branch pipe (275) is provided with a high-pressure spray head (276).
6. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1, wherein the first stirring mechanism (4) and the second stirring mechanism (12) each comprise a stirring motor (41), a stirring shaft (42) and a stirring blade (43), the stirring shaft (42) is installed at the output end of the stirring motor (41), and the stirring blade (43) is welded on the outer wall of the stirring shaft (42).
7. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1, wherein the heating mechanism (15) comprises a heating core rod (151) and a sleeve (152), the sleeve (152) is made of an anticorrosive material and is sleeved on the outer wall of the heating core rod (151), and the heating core rod (151) and the sleeve (152) are both in a spiral shape.
8. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 1, wherein the outlets of the third conduit (20) and the fourth conduit (21) are both arranged above the filtering mechanism (19).
9. The chloride ion removal equipment used in the process of industrially producing nickel nitrate according to claim 8, wherein the end of the third conduit (20) is communicated with the side wall of the treatment tank (1), and the solution led out by the fourth conduit (21) is subjected to copper ion removal, extraction, evaporation, cooling, crystallization and spin-drying to obtain a nickel nitrate product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220165.9A CN112892064A (en) | 2019-12-03 | 2019-12-03 | Chloride ion removing equipment used in process of industrially producing nickel nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220165.9A CN112892064A (en) | 2019-12-03 | 2019-12-03 | Chloride ion removing equipment used in process of industrially producing nickel nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112892064A true CN112892064A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911220165.9A Withdrawn CN112892064A (en) | 2019-12-03 | 2019-12-03 | Chloride ion removing equipment used in process of industrially producing nickel nitrate |
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