CN212669228U - Titanium white waste acid water production white gypsum equipment - Google Patents
Titanium white waste acid water production white gypsum equipment Download PDFInfo
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- CN212669228U CN212669228U CN202021090413.0U CN202021090413U CN212669228U CN 212669228 U CN212669228 U CN 212669228U CN 202021090413 U CN202021090413 U CN 202021090413U CN 212669228 U CN212669228 U CN 212669228U
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Abstract
The utility model discloses a titanium dioxide waste acid water production white gypsum equipment, which relates to the technical field of waste acid water treatment, and comprises a raw material tank for containing waste acid water, a microfiltration device for filtering suspended matters in the waste acid water, a membrane separation device for filtering metal ions in the waste acid water, a neutralization device and a centrifugal device, wherein the microfiltration device is communicated with the raw material tank, the membrane separation device is communicated with the microfiltration device, and dilute sulfuric acid in the waste acid water permeates the membrane separation device; the neutralization device comprises a calcium hydroxide tank for containing calcium hydroxide and a neutralization and precipitation tank, and the neutralization and precipitation tank is communicated with the calcium hydroxide tank and the membrane separation device so that the dilute sulfuric acid and the calcium hydroxide are subjected to neutralization reaction in the neutralization and precipitation tank; the centrifugal device is used for separating calcium sulfate and neutral water generated by the neutralization reaction and is communicated with the neutralization and sedimentation tank. By the arrangement, white gypsum is generated after the waste acid water treatment, can be used as building gypsum, and cannot pollute the environment; the membrane technology has relatively simple purification process flow and low operation cost.
Description
Technical Field
The utility model relates to a spent acid water treatment technical field, more specifically say, relate to a titanium dioxide spent acid water production gypsum equipment.
Background
The sulfuric acid method is a mainstream process for producing titanium dioxide in China, and a large amount of waste acid water can be produced while producing the titanium dioxide by the sulfuric acid method, wherein the sulfuric acid content in the waste acid water is about 4 percent, and the ferrous ion content is 5 g/L. For the treatment of waste acid water, the traditional treatment method is to discharge the waste acid water through lime neutralization, but because iron ions are more, a large amount of red gypsum is generated by the neutralization, and the red gypsum can not be used as building gypsum and has certain pollution to the environment. On the other hand, purification and recovery of washing water and waste acid water through a membrane technology are industrialized, but the process is complex, an acid-resistant reaction head needs to be used and extends into sulfuric acid, the sulfuric acid is evaporated to the residual 60%, the cost of the evaporation process is too high, the cost of the recovered sulfuric acid is far higher than the market value of the sulfuric acid, the operation cost is high, the sulfuric acid has no recovery significance, and therefore the technology cannot be effectively popularized. In order to reduce the operation cost and help enterprises to realize environmental protection, an economically feasible titanium dioxide waste acid water treatment device needs to be found.
Therefore, how to solve the problems of the prior art that red gypsum is generated by neutralizing and treating the waste acid water, the waste acid water cannot be used as building gypsum, the environment is polluted, the waste acid water purification process by the membrane technology is complicated, and the operation cost is too high becomes an important technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a titanium dioxide spent acid water production gypsum equipment produces red gypsum, can't use as building gypsum, polluted environment with solving among the prior art and handling the spent acid water, and the membrane technology purifies the technical problem that the spent acid water flow is complicated, the running cost is too high. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
The utility model provides a titanium dioxide spent acid water production gypsum equipment, include:
the raw material tank is used for containing waste acid water;
the microfiltration device is used for filtering suspended matters in the waste acid water and communicated with the raw material tank;
the membrane separation device is used for filtering metal ions in the waste acid water, dilute sulfuric acid in the waste acid water permeates the membrane separation device, and the membrane separation device is communicated with the microfiltration device;
the neutralization device comprises a calcium hydroxide tank for containing calcium hydroxide and a neutralization and precipitation tank, and the neutralization and precipitation tank is communicated with the calcium hydroxide tank and the membrane separation device so that the dilute sulfuric acid and the calcium hydroxide are subjected to neutralization reaction in the neutralization and precipitation tank;
and the centrifugal device is used for separating calcium sulfate and neutral water generated by the neutralization reaction and is communicated with the neutralization settling tank.
Preferably, the membrane separation device comprises a secondary acid-resistant nanofiltration membrane, a feeding tank is arranged between the membrane separation device and the microfiltration device, and the feeding tank is communicated with the microfiltration device and the membrane separation device.
Preferably, the microfiltration device is connected with a CN filter, the CN filter is communicated with the microfiltration device and the raw material tank, the concentrated water of the microfiltration device enters the CN filter, the CN filter separates the suspended matter and the clear water in the concentrated water, the lower end of the CN filter is communicated with a titanium dioxide powder tank for recovering the suspended matter, and the CN filter is communicated with the raw material tank so that the clear water returns to the raw material tank.
Preferably, a feeding pump is arranged between the raw material tank and the microfiltration device.
Preferably, the membrane separation device is communicated with a concentrated water tank for containing the solution of the metal ions.
Preferably, a cartridge filter is arranged between the feeding tank and the membrane separation device.
Preferably, a booster pump is arranged between the feeding tank and the cartridge filter.
Preferably, a high-pressure pump is arranged between the cartridge filter and the membrane separation device.
Preferably, the centrifugal device is a centrifuge, the inlet end of the centrifuge is communicated with the neutralization and precipitation tank, the outlet end of the centrifuge is communicated with a reclaimed water recycling tank for recycling the neutral water, and the lower end of the centrifuge is connected with a white gypsum tank for recycling the calcium sulfate.
Preferably, a mortar pump is arranged between the neutralization and sedimentation tank and the centrifugal device.
The utility model provides an among the technical scheme, titanium dioxide waste acid water production white gypsum equipment includes the head tank, the microfiltration device, membrane separation device, neutralization apparatus and centrifugal device, wherein, the head tank is used for splendid attire waste acid water, the microfiltration device is used for filtering the suspended solid in the waste acid water, the microfiltration device is linked together with the head tank, membrane separation device is linked together with the microfiltration device, membrane separation device is used for filtering the metal ion in the waste acid water, dilute sulphuric acid in the waste acid water sees through membrane separation device, metal ion can not see through membrane separation device, neutralization apparatus is including the calcium hydroxide jar and the neutralization settling tank that are used for splendid attire calcium hydroxide, neutralization settling tank and calcium hydroxide jar, membrane separation device all communicates, thereby make dilute sulphuric acid and calcium hydroxide take place neutralization reaction in the neutralization settling tank, and then generate calcium sulfate and neutral water; the centrifugal device is communicated with the neutralization settling tank, and the product of the neutralization reaction enters the centrifugal device which is used for separating calcium sulfate and neutral water generated by the neutralization reaction. According to the arrangement, the waste acid water is sequentially treated by the microfiltration device, the membrane separation device, the neutralization reaction and the centrifugal device to generate white gypsum and neutral water, and the white gypsum can be used as building gypsum and cannot pollute the environment; and compared with the treatment process in the prior art, the membrane technology has simple process flow, does not need to evaporate sulfuric acid, and has low operation cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for producing white gypsum from titanium dioxide waste acid water in the embodiment of the present invention.
In fig. 1:
1. a raw material tank; 2. a feed pump; 3. a microfiltration device; 4. a CN filter; 5. a titanium white powder tank; 6. a feed tank; 7. a booster pump; 8. a cartridge filter; 9. a high pressure pump; 10. a membrane separation device; 11. a dense water tank; 12. a calcium hydroxide tank; 13. a neutralization and precipitation tank; 14. a mortar pump; 15. a centrifuge; 16. a white gypsum tank; 17. a reclaimed water recycling tank; 18. a pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The purpose of this embodiment is to provide a titanium dioxide waste acid water production white gypsum equipment, solves among the prior art and neutralizes and handle waste acid water and produce red gypsum, can't regard as building gypsum to use, polluted environment, and the membrane technology purifies waste acid water flow complicacy, the too high problem of running cost.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1, in the present embodiment, an apparatus for producing white gypsum from titanium dioxide waste acid water includes a raw material tank 1, a microfiltration device 3, a membrane separation device 10, a neutralization device and a centrifugal device, wherein the raw material tank 1 is used for containing waste acid water, the waste acid water generally contains 4% of sulfuric acid and 5g/L of ferrous ions, the microfiltration device 3 is communicated with the raw material tank 1, the waste acid water enters the microfiltration device 3, the microfiltration device 3 filters suspended matters in the waste acid water, and the membrane separation device 10 is prevented from being blocked by the suspended matters in the waste acid water at a later stage; the membrane separation device 10 is communicated with the microfiltration device 3, the waste acid water after suspended matters are filtered enters the membrane separation device 10, the membrane separation device 10 is used for filtering metal ions in the waste acid water, dilute sulfuric acid in the waste acid water permeates the membrane separation device 10, the metal ions cannot permeate the membrane separation device 10, a large amount of ferrous sulfate is contained in a membrane concentrated solution which does not pass through the membrane separation device 10, the membrane concentrated solution can return to a titanium dioxide production acidolysis process, the ferrous sulfate can be recovered through a disc filter, and the ferrous sulfate can be used as a water purifying agent raw material; the neutralization device comprises a calcium hydroxide tank 12 for containing calcium hydroxide and a neutralization and precipitation tank 13, wherein the neutralization and precipitation tank 13 is communicated with the calcium hydroxide tank 12 and the membrane separation device 10, so that dilute sulfuric acid penetrating through the membrane separation device 10 and calcium hydroxide in the calcium hydroxide tank 12 can enter the neutralization and precipitation tank 13, and the dilute sulfuric acid and the calcium hydroxide are subjected to neutralization reaction in the neutralization and precipitation tank 13 to generate calcium sulfate and neutral water; the centrifugal device is communicated with the neutralization settling tank 13, calcium sulfate and neutral water which are products of neutralization reaction enter the centrifugal device, the centrifugal device can separate the calcium sulfate and the neutral water which are generated by the neutralization reaction, after separation, the calcium sulfate is the white gypsum which can be directly used as building gypsum, and the neutral water can be reused as reclaimed water.
Specifically, the microfiltration device 3 adopts a sand filtration process, and the sand filtration is a water filtration treatment process taking natural quartz sand, usually manganese sand and anthracite as filter materials, and mainly has the function of intercepting macromolecular solid particles and colloids in water to clarify the water. Preferably, the microfiltration device 3 may employ a sand filter.
According to the arrangement, the waste acid water is sequentially treated by the microfiltration device 3, the membrane separation device 10, the neutralization reaction and the centrifugal device to generate white gypsum and neutral water, ferrous sulfate in the waste acid water is intercepted by a membrane technology, namely iron ions and sulfuric acid are filtered and separated, the membrane produced water is dilute sulfuric acid, wherein the iron ions are less than 200ppm, then the lime is used for neutralizing the dilute sulfuric acid to produce the white gypsum, and the produced white gypsum meets the standards of related building gypsum, can be used as the building gypsum and does not pollute the environment; and compared with the treatment process in the prior art, the membrane technology has simple process flow, does not need to evaporate sulfuric acid, and has low operation cost. The whole titanium dioxide waste acid water that will carry out of this equipment is synthesized to be retrieved, and the running cost is low, is favorable to titanium white powder enterprise to eliminate titanium white red gypsum, realizes resource recovery and zero release.
As an optional embodiment, the membrane separation device 10 includes a second-stage acid-resistant nanofiltration membrane, the pore diameters of the two-stage acid-resistant nanofiltration membrane are the same, a feeding tank 6 is arranged between the membrane separation device 10 and the microfiltration device 3, and the feeding tank 6 is communicated with the microfiltration device 3 and the membrane separation device 10 through a pipeline 18, that is, the waste acid water coarsely filtered by the microfiltration device 3 firstly enters the feeding tank 6 and then enters the membrane separation device 10 through the feeding tank 6. Specifically, the acid-resistant nanofiltration membrane is specially used in the continuous operation working condition of the acid environment, divalent ions and multivalent ions can be preferentially removed from the membrane, monovalent ions and inorganic acid can permeate completely, the permeability of the monovalent ions and the inorganic acid is high, and osmotic pressure cannot be generated. After being filtered by a secondary acid-resistant nanofiltration membrane, the concentration of iron ions in the dilute sulfuric acid is less than 200 ppm.
Preferably, the microfiltration device 3 is connected with the CN filter 4, the CN filter 4 all is linked together through pipeline 18 with microfiltration device 3, head tank 1, in the dense water entering CN filter 4 of microfiltration device 3, contain suspended solid and clear water in the dense water, the suspended solid and the clear water separation of CN filter 4 in with the dense water, and the lower extreme intercommunication of CN filter 4 has the titanium dioxide powder jar 5 that is used for retrieving the suspended solid, and CN filter 4 communicates head tank 1 to make the clear water return in the head tank 1. Of course, in other embodiments, the titanium dioxide powder tank 5 can be replaced by a tank body, and the suspended matters can be recovered. Specifically, the CN filter 4 is a solid-liquid separation device, which adopts a polymer particle adsorption filtration technology, and utilizes a layer of suspended filter medium to absorb suspended matters in the filtered liquid, so as to clear the discharged liquid, ensure the efficiency of removing suspended matters by the device to be more than 98.5%, and avoid filter blockage and scaling by adopting a unique backwashing technology, so as to ensure a long-term filtration effect; the device is made of FRP materials, and has the advantages of corrosion resistance, less maintenance workload, high use reliability and long service life. In other embodiments, other filtering devices capable of separating suspended matters from clean water can be communicated between the microfiltration device 3 and the raw material tank 1.
So set up, through CN filter 4 with the suspended solid recovery use, produce titanium white powder and clear water, make the microfiltration process not produce the waste.
As an optional embodiment, a feed pump 2 is arranged between the raw material tank 1 and the microfiltration device 3, and the feed pump 2 is communicated with the raw material tank 1 and the microfiltration device 3 through pipelines 18.
So set up, make the sour water of spent acid in the head tank 1 carry to in the microfiltration device 3 fast evenly through charge pump 2.
In a preferred embodiment, the membrane separation device 10 is connected to a concentrate tank 11 for containing a solution of metal ions, that is, the concentrated membrane solution of the membrane separation device 10 is introduced into the concentrate tank 11, and the concentration of iron ions in the concentrated membrane solution is about 60g/L, so that the concentrated membrane solution is collected and then returned to the acidolysis process for titanium dioxide production.
In the preferred embodiment, a cartridge filter 8 is provided between feed tank 6 and membrane separation device 10, feed tank 6 is in communication with the inlet end of cartridge filter 8 via conduit 18, and the outlet end of cartridge filter 8 is in communication with membrane separation device 10 via conduit 18. Specifically, the cartridge filter 8 is mostly made of an anticorrosive material as a housing, and a filter element such as PP cotton is arranged in the cartridge filter, and is mainly used after multi-medium pretreatment filtration and before membrane filtration equipment such as reverse osmosis and ultrafiltration; the filter element is used for filtering fine substances filtered by a plurality of media so as to ensure the water quality filtering precision and protect the membrane filter element from being damaged by large-particle substances.
In this way, the cartridge filter 8 is used for performing a precise filtration on the mixed liquid of the sulfuric acid and the ferrous sulfate, namely the waste acid water, so as to meet the requirements of the subsequent processes on the mixed liquid of the sulfuric acid and the ferrous sulfate.
In the preferred embodiment, a booster pump 7 is provided between feed tank 6 and the canister filter 8. Specifically, the inlet ends of the feed tank 6 and the booster pump 7, and the outlet end of the booster pump 7 are communicated with the cartridge filter 8 through the pipeline 18.
So set up, booster pump 7 can increase the pressure of the pipeline 18 between feed tank 6 and the cartridge filter 8 effectively, makes cartridge filter 8 carry out quick abundant filtration to the spent acid water after the microfiltration, has improved work efficiency.
Preferably, a high pressure pump 9 is provided between the cartridge filter 8 and the membrane separation device 10. Specifically, the cartridge filter 8 is communicated with the inlet end of the high-pressure pump 9, and the outlet end of the high-pressure pump 9 is communicated with the membrane separation device 10 through pipelines 18.
So set up, high-pressure pump 9 can provide high-pressure power, further improves work efficiency.
In an alternative embodiment, the centrifugal device is a centrifuge 15, an inlet end of the centrifuge 15 is communicated with the neutralization and precipitation tank 13, so that calcium sulfate and neutral water in the neutralization and precipitation tank 13 enter the centrifuge 15, an outlet end of the centrifuge 15 is communicated with a reclaimed water recycling tank 17 for recycling the neutral water, the neutral water enters the reclaimed water recycling tank 17, a white gypsum tank 16 for recycling the calcium sulfate is connected to a lower end of the centrifuge 15, and the calcium sulfate enters the white gypsum tank 16.
So set up, through reuse of reclaimed water jar 17 and white gypsum groove 16 respectively with neutral water and calcium sulfate collection, white gypsum in white gypsum groove 16 is in order to be used for building gypsum, neutral water in reuse of reclaimed water jar 17 is in order to be used for the reuse of reclaimed water.
In the preferred embodiment, a mortar pump 14 is provided between the neutralization settling tank 13 and the centrifuge. Specifically, the neutralization settling tank 13 is communicated with the inlet end of the mortar pump 14, and the outlet end of the mortar pump 14 is communicated with the inlet end of the centrifugal device through a pipeline 18.
With this arrangement, the mortar pump 14 has excellent corrosion resistance and abrasion resistance, and can efficiently pump calcium sulfate and neutral water in the neutralization settling tank 13 into the centrifugal device.
In a preferred embodiment, the material of the raw material tank 1 and the material of the feeding tank 6 can be set according to a specific use environment, and in this embodiment, the material of the raw material tank 1 and the material of the feeding tank 6 are both preferably acid-resistant materials, so that a chemical reaction between an acidic substance in the tank body and the tank body itself is effectively avoided.
The apparatus for producing white gypsum from titanium dioxide waste acid water is specifically described with reference to the above embodiments, in this embodiment, the apparatus for producing white gypsum from titanium dioxide waste acid water comprises a raw material tank 1 for containing waste acid water, a microfiltration device 3 for filtering suspended matters in the waste acid water, a membrane separation device 10 for filtering metal ions in the waste acid water, a neutralization device and a centrifuge 15, the raw material tank 1 is sequentially communicated with the microfiltration device 3, a feed pump 2 and the membrane separation device 10, the membrane separation device 10 comprises a secondary acid-resistant nanofiltration membrane, the microfiltration device 3 is connected with a CN filter 4, the CN filter 4 is communicated with the microfiltration device 3 and the raw material tank 1, and the lower end of the CN filter 4 is communicated with a titanium dioxide powder tank 5 for recovering the suspended matters; a feeding tank 6 is communicated between the membrane separation device 10 and the microfiltration device 3, a booster pump 7, a cartridge filter 8 and a high-pressure pump 9 are sequentially communicated between the feeding tank 6 and the membrane separation device 10, and the membrane separation device 10 is communicated with a concentrated water tank 11 for containing metal ion solution; the neutralization device comprises a calcium hydroxide tank 12 for containing calcium hydroxide and a neutralization and precipitation tank 13, wherein the neutralization and precipitation tank 13 is communicated with the calcium hydroxide tank 12 and the membrane separation device 10; the centrifugal machine 15 is used for separating calcium sulfate and neutral water generated by neutralization reaction, a mortar pump 14 is arranged between the inlet end of the centrifugal machine 15 and the neutralization settling tank 13 and is communicated with the inlet end of the centrifugal machine 15, the outlet end of the centrifugal machine 15 is communicated with a reclaimed water recycling tank 17 for recycling the neutral water, and the lower end of the centrifugal machine 15 is connected with a white gypsum tank 16.
So set up, this equipment is whole to carry out the synthesis with titanium white waste acid water and retrieves, and the running cost is low, is favorable to titanium white powder enterprise to eliminate titanium white red gypsum, realizes resource recovery and zero release.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The utility model provides a plurality of schemes contain the basic scheme of itself, mutual independence to restrict each other, but it also can combine each other under the condition of not conflicting, reaches a plurality of effects and realizes jointly.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a titanium dioxide waste acid water production gypsum equipment which characterized in that includes:
the raw material tank (1) is used for containing waste acid water;
the microfiltration device (3) is used for filtering suspended matters in the waste acid water, and the microfiltration device (3) is communicated with the raw material tank (1);
the membrane separation device (10) is used for filtering metal ions in the waste acid water, dilute sulfuric acid in the waste acid water permeates through the membrane separation device (10), and the membrane separation device (10) is communicated with the microfiltration device (3);
the neutralization device comprises a calcium hydroxide tank (12) for containing calcium hydroxide and a neutralization precipitation tank (13), wherein the neutralization precipitation tank (13) is communicated with the calcium hydroxide tank (12) and the membrane separation device (10) so that the dilute sulfuric acid and the calcium hydroxide are subjected to neutralization reaction in the neutralization precipitation tank (13);
and the centrifugal device is used for separating calcium sulfate and neutral water generated by the neutralization reaction, and is communicated with the neutralization settling tank (13).
2. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein the membrane separation device (10) comprises a secondary acid-resistant nanofiltration membrane, a feed tank (6) is arranged between the membrane separation device (10) and the microfiltration device (3), and the feed tank (6) is communicated with the microfiltration device (3) and the membrane separation device (10).
3. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein the microfiltration device (3) is connected with a CN filter (4), the CN filter (4) is communicated with the microfiltration device (3) and the raw material tank (1), the concentrated water of the microfiltration device (3) enters the CN filter (4), the CN filter (4) separates the suspended matter and the clean water in the concentrated water, the lower end of the CN filter (4) is communicated with a titanium dioxide powder tank (5) for recovering the suspended matter, and the CN filter (4) is communicated with the raw material tank (1) to return the clean water to the raw material tank (1).
4. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein a feed pump (2) is arranged between the raw material tank (1) and the microfiltration device (3).
5. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein said membrane separation device (10) is connected to a concentrated water tank (11) for containing said solution of metal ions.
6. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 2, wherein a cartridge filter (8) is arranged between the feed tank (6) and the membrane separation device (10).
7. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 6, wherein a booster pump (7) is arranged between the feed tank (6) and the cartridge filter (8).
8. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 6, wherein a high-pressure pump (9) is arranged between the cartridge filter (8) and the membrane separation device (10).
9. The equipment for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein the centrifugal device is a centrifuge (15), the inlet end of the centrifuge (15) is communicated with the neutralization and precipitation tank (13), the outlet end of the centrifuge (15) is communicated with a reclaimed water recycling tank (17) for recycling the neutral water, and the lower end of the centrifuge (15) is connected with a white gypsum tank (16) for recycling the calcium sulfate.
10. The apparatus for producing white gypsum from titanium dioxide waste acid water according to claim 1, wherein a mortar pump (14) is provided between the neutralization and precipitation tank (13) and the centrifugal device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021090413.0U CN212669228U (en) | 2020-06-12 | 2020-06-12 | Titanium white waste acid water production white gypsum equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021090413.0U CN212669228U (en) | 2020-06-12 | 2020-06-12 | Titanium white waste acid water production white gypsum equipment |
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| CN212669228U true CN212669228U (en) | 2021-03-09 |
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