CN210048505U - Device for producing calcium chloride by leaching mother liquor - Google Patents
Device for producing calcium chloride by leaching mother liquor Download PDFInfo
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- CN210048505U CN210048505U CN201920750364.XU CN201920750364U CN210048505U CN 210048505 U CN210048505 U CN 210048505U CN 201920750364 U CN201920750364 U CN 201920750364U CN 210048505 U CN210048505 U CN 210048505U
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Abstract
The utility model discloses a device for producing calcium chloride by leaching mother liquor, which comprises a plate-and-frame filter press, a liquid storage tank, a primary evaporator, a secondary evaporator, a spray drying tank and a cyclone separator; the spray drying tank also comprises a cleaning component and a guide plate; the cleaning assembly comprises a cleaning paddle assembly, a connecting piece, a rotating shaft and a driving device; the cleaning paddle component comprises an inner wall cleaning paddle, a guide plate cleaning paddle, a bottom side wall cleaning paddle and a tank bottom cleaning paddle. The utility model has simple structure and convenient operation, and can quickly and effectively recover the calcium chloride in the leaching mother liquor; the guide plate in the spray drying tank ensures that the hot air can more uniformly dry the materials in the tank body; the cleaning paddle component in the spray drying tank can well clean the attached materials on the inner wall of the tank body, and the tank bottom cleaning paddle can push out the materials accumulated at the position different from the material discharge port at the bottom of the tank body from the material discharge port in the rotating process, so that the recovery efficiency of calcium chloride is improved.
Description
Technical Field
The utility model belongs to the technical field of trichlorosilane production technology and particularly relates to a device for producing calcium chloride by leaching mother liquor.
Background
In the existing trichlorosilane production process, a leaching section mainly disposes chlorosilane gas and unreacted hydrogen chloride gas generated in a previous process, and leaching mother liquor is obtained by neutralizing leaching liquor generated in the leaching section with calcium hydroxide. The neutralized rinsing mother liquor mainly contains silicon dioxide and calcium chloride. Calcium chloride is a common industrial raw material, and if the leaching mother liquor containing a large amount of calcium chloride is directly discharged, the environment is polluted (containing more chloride ions), and waste is caused, so that the leaching mother liquor is directly adopted to produce industrial-grade calcium chloride, secondary recovery is carried out on the leaching mother liquor, and the discharge of industrial wastewater and waste residues can be reduced. There is therefore a need for a calcium chloride production plant that can be used to leach mother liquor.
In the prior art, the production of calcium chloride mainly adopts the process of crystallization after concentration or drying after concentration. Spray drying jar is commonly used to the drying process, but prior art's spray drying jar inner wall can the adhesion a large amount of materials in the drying process, leads to drying efficiency greatly reduced, and the unable normal recovery of product after the drying.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the prior technical problem and providing a device for producing calcium chloride by leaching mother liquor.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
a device for producing calcium chloride by leaching mother liquor comprises a plate-and-frame filter press, a liquid storage tank, a primary evaporator, a secondary evaporator, a spray drying tank and a cyclone separator; the spray drying tank comprises a tank body and an atomizing device in the tank body; the spray drying tank also comprises a cleaning component and a guide plate;
the upper end of the tank body is provided with a feed pipe which is communicated with an atomizing device in the tank body; a hot air inlet is arranged at the left side of the tank body close to the lower part, a hot air outlet is arranged at the right side close to the upper part, and a discharge outlet is arranged at the bottom; the bottom of the tank body is in a circular truncated cone shape;
the guide plate is funnel-shaped; the upper opening of the guide plate is larger than the lower opening, and the upper opening is fixedly connected with the inner wall of the tank body; the upper opening position of the guide plate is higher than the hot air inlet; the cleaning assembly comprises a cleaning paddle assembly, a connecting piece, a rotating shaft and a driving device; the rotating shaft penetrates through the bottom of the tank body; the driving device is connected with the rotating shaft outside the tank body and drives the rotating shaft to rotate;
the cleaning paddle component comprises an inner wall cleaning paddle, a guide plate cleaning paddle, a bottom side wall cleaning paddle and a tank bottom cleaning paddle; the cleaning paddle components are fixed on the rotating shaft through connecting pieces; the inner wall cleaning paddle is in a strip shape and is parallel to the inner wall of the tank body; the mounting position of the inner wall cleaning paddle is higher than the position of the opening on the guide plate; the guide plate cleaning paddle is in a bent plate shape and comprises an upper plate and an inclined plate; the guide plate cleaning paddle is fixedly connected with the connecting piece through a supporting rod; the upper plate is parallel to the inner wall of the tank body, and the inclined plate is parallel to the guide plate; the bottom side wall cleaning paddle is in a strip shape and is parallel to the bottom side wall of the tank body; the tank bottom cleaning paddle is an arc-shaped plate; the lower end surface of the tank bottom cleaning paddle is parallel to the bottom of the tank body; a connecting block is fixed at the upper end of the tank bottom cleaning paddle; the connecting block is welded with a connecting rod; the tank bottom cleaning paddle is fixedly connected with the connecting piece through a connecting rod;
the inner wall cleaning paddle, the guide plate cleaning paddle, the bottom side wall cleaning paddle and the tank bottom cleaning paddle are fixed on the rotating shaft in a left-right staggered manner;
the plate-and-frame filter press is communicated with a feed inlet A of the liquid storage tank; a discharge port A of the liquid storage tank is communicated with a feed port B of the primary evaporator; the discharge hole B of the first-stage evaporator is communicated with the feed inlet C of the second-stage evaporator; a discharge hole C of the secondary evaporator is communicated with a feed pipe of the spray drying tank; the hot air outlet of the spray drying tank is communicated with the inlet of the cyclone separator.
Preferably, the driving device comprises a driving motor and a chain; the driving motor drives the chain to drive the rotating shaft.
Preferably, the inner wall cleaning paddle, the guide plate cleaning paddle, the bottom side wall cleaning paddle and the tank bottom cleaning paddle are all provided with cleaning bristles.
The utility model discloses an action principle:
the utility model discloses a plate and frame filter press, liquid storage pot, one-level evaporimeter, second grade evaporimeter, spray drying jar, cyclone. And leaching liquor is obtained in the leaching working section after leaching, and leaching mother liquor mainly containing silicon dioxide and calcium chloride is obtained after the leaching liquor is neutralized by calcium hydroxide. The utility model discloses at first filter the silica in the drip washing mother liquor through the plate and frame filter press, obtain the solution that contains calcium chloride. The calcium chloride solution enters the liquid storage tank through the feed inlet A for storage. In the process of producing calcium chloride, calcium chloride solution in a liquid storage tank is evaporated and concentrated by a primary evaporator and a secondary evaporator, and then enters a spray drying tank for drying to obtain a calcium chloride solid finished product. The spray drying tank adopts hot air to provide a drying heat source, and the hot air is inevitably carried with part of calcium chloride when being discharged from the spray drying tank, so that a cyclone separator is arranged to be communicated with a hot air outlet of the spray drying tank to separate the calcium chloride carried by the hot air, and the loss of the calcium chloride is avoided. The filter press, the liquid storage tank, the primary evaporator, the secondary evaporator and the cyclone separator adopted in the utility model are the prior art, and are not described in detail herein for space reasons, wherein and the connection method of the above devices is also the prior art.
The utility model discloses a spray drying jar has and cleans subassembly, deflector. The guide plate is used for guiding hot air input from the hot air inlet firstly, and the hot air enters the upper part of the tank body from the lower opening of the guide plate, so that the materials in the tank body can be dried more uniformly; secondly, the guide plate can also make the material fall into the bottom of the tank body along the guide plate. The flow rate control of the hot air entering the tank body and the size of the fog drops atomized by the atomizing device are all the prior art, can be set according to actual needs, are well known to those skilled in the art, and are not limited in technical parameters.
The cleaning paddle component comprises an inner wall cleaning paddle, a guide plate cleaning paddle, a bottom side wall cleaning paddle and a tank bottom cleaning paddle. The inner wall cleaning paddle and the guide plate cleaning paddle mainly clean materials which can be adhered to and remain on the inner wall of the tank body and the guide plate, so that the drying efficiency is prevented from being influenced by excessive materials accumulated on the inner wall of the tank body, the dried materials can be collected and used as much as possible, and the loss is reduced; the guide plate cleaning paddle can also prevent materials from being accumulated on the guide plate. The bottom side wall cleaning paddle and the tank bottom cleaning paddle are mainly used for cleaning materials at the bottom of the tank body below the guide plate, and the tank bottom cleaning paddle also has the function of auxiliary discharging. The tank bottom cleaning paddle is an arc-shaped plate and can push out materials accumulated at the bottom of the tank body, which are different from the material discharge port, from the material discharge port in the rotating process; and the arc promotes the material, can make the material pile up to the center of arc, cleans and the efficiency that promotes higher, and the material volume that promotes is bigger.
Utility model's beneficial effect:
the utility model has simple structure and convenient operation, and can quickly and effectively recover the calcium chloride in the leaching mother liquor; the guide plate in the spray drying tank ensures that the hot air can more uniformly dry the materials in the tank body; the cleaning paddle component in the spray drying tank can well clean the attached materials on the inner wall of the tank body, and the tank bottom cleaning paddle can push out the materials accumulated at the position different from the material discharge port at the bottom of the tank body from the material discharge port in the rotating process, so that the recovery efficiency of calcium chloride is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the spray drying tank of FIG. 1;
FIG. 3 is a top view of the tank bottom sweeping paddle of FIG. 2.
In the figure: 1. a plate-and-frame filter press; 2. a liquid storage tank; 3. a first-stage evaporator; 4. a secondary evaporator; 5. a spray drying tank; 6. a cyclone separator; 7. a tank body; 8. an atomizing device; 9. a guide plate; 10. a feed pipe; 11. a hot air inlet; 12. a hot air outlet; 13. a discharge outlet; 14. an upper opening; 15. a lower opening; 16. a connecting member; 17. a rotating shaft; 18. a drive device; 19. an inner wall cleaning paddle; 20. a guide plate cleaning paddle; 21. bottom side wall cleaning paddles; 22. a tank bottom cleaning paddle; 23. an upper plate; 24. a sloping plate; 25. a strut; 26. connecting blocks; 27. a connecting rod; 28. a feed inlet A; 29. a discharge hole A; 30. a feed inlet B; 31. a discharge hole B; 32. a feed inlet C; 33. a discharge port C; 34. and cleaning the bristles.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, illustrative embodiments and description of which are provided herein to explain the invention, but not as a limitation thereof.
As shown in fig. 1 to 3, a device for producing calcium chloride by leaching mother liquor comprises a plate-and-frame filter press 1, a liquid storage tank 2, a primary evaporator 3, a secondary evaporator 4, a spray drying tank 5 and a cyclone separator 6. The spray drying tank 5 comprises a tank body 7, an atomizing device 8 in the tank body 7, a cleaning assembly and a guide plate 9.
A feeding pipe 10 is arranged at the upper end of the tank body 7, and the feeding pipe 10 is communicated with an atomizing device 8 in the tank body 7; a hot air inlet 11 is arranged at the left side of the tank body 7 close to the lower part, a hot air outlet 12 is arranged at the right side close to the upper part, and a discharge outlet 13 is arranged at the bottom; the bottom of the tank body 7 is in a round table shape.
The guide plate 9 is funnel-shaped; the upper opening 14 of the guide plate 9 is larger than the lower opening 15, and the upper opening 14 is fixedly connected with the inner wall of the tank body 7; the upper opening 14 of the guide plate 9 is higher than the hot air inlet 11; the sweeping assembly comprises a sweeping paddle assembly, a connecting piece 16, a rotating shaft 17 and a driving device 18; the rotating shaft 17 penetrates through the bottom of the tank body 7; the driving device 18 is connected with the rotating shaft 17 outside the tank 7 and drives the rotating shaft 17 to rotate.
The cleaning paddle component comprises an inner wall cleaning paddle 19, a guide plate cleaning paddle 20, a bottom side wall cleaning paddle 21 and a tank bottom cleaning paddle 22; the sweeping paddle components are all fixed on a rotating shaft 17 through a connecting piece 16. The inner wall cleaning paddle 19 is in a strip shape and is parallel to the inner wall of the tank body 7; the inner wall sweeping paddles 19 are mounted at a position higher than the position of the opening 14 in the guide plate 9. The guide plate cleaning paddle 20 is a bent plate and comprises an upper plate 23 and an inclined plate 24; the guide plate cleaning paddle 20 is fixedly connected with the connecting piece 16 through a supporting rod 25; the upper plate 23 is parallel to the inner wall of the tank 7, and the inclined plate 24 is parallel to the guide plate 9. The bottom side wall cleaning paddle 21 is in a strip shape and is parallel to the bottom side wall of the tank body 7. The tank bottom cleaning paddle 22 is an arc-shaped plate; the lower end surface of the tank bottom cleaning paddle 22 is parallel to the bottom of the tank body; the upper end of the tank bottom cleaning paddle 22 is fixed with a connecting block 26; a connecting rod 27 is welded on the connecting block 26; the tank bottom sweeping paddle 22 is fixedly connected with the connecting piece 16 through a connecting rod 27.
The inner wall cleaning paddle 19, the guide plate cleaning paddle 20, the bottom side wall cleaning paddle 21 and the tank bottom cleaning paddle 22 are fixed on the rotating shaft 17 in a left-right staggered mode.
The plate-and-frame filter press 1 is communicated with a feed inlet A28 of the liquid storage tank 2; a discharge port A29 of the liquid storage tank 2 is communicated with a feed port B30 of the primary evaporator 3; the discharge hole B31 of the primary evaporator 3 is communicated with the feed hole C32 of the secondary evaporator 4; the discharge port C33 of the secondary evaporator 4 is communicated with the feeding pipe 10 of the spray drying tank 5; the hot air outlet 12 of the spray drying tank 5 is communicated with the inlet of the cyclone separator 6.
Wherein, the inner wall cleaning paddle 19, the guide plate cleaning paddle 20, the bottom side wall cleaning paddle 21 and the tank bottom cleaning paddle 22 are all provided with cleaning bristles 34.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (3)
1. A device for producing calcium chloride by leaching mother liquor comprises a plate-and-frame filter press, a liquid storage tank, a primary evaporator, a secondary evaporator, a spray drying tank and a cyclone separator; the spray drying tank comprises a tank body and an atomizing device in the tank body; the method is characterized in that: the spray drying tank also comprises a cleaning component and a guide plate;
the upper end of the tank body is provided with a feed pipe which is communicated with an atomizing device in the tank body; a hot air inlet is arranged at the left side of the tank body close to the lower part, a hot air outlet is arranged at the right side close to the upper part, and a discharge outlet is arranged at the bottom; the bottom of the tank body is in a circular truncated cone shape;
the guide plate is funnel-shaped; the upper opening of the guide plate is larger than the lower opening, and the upper opening is fixedly connected with the inner wall of the tank body; the upper opening position of the guide plate is higher than the hot air inlet; the cleaning assembly comprises a cleaning paddle assembly, a connecting piece, a rotating shaft and a driving device; the rotating shaft penetrates through the bottom of the tank body; the driving device is connected with the rotating shaft outside the tank body and drives the rotating shaft to rotate;
the cleaning paddle component comprises an inner wall cleaning paddle, a guide plate cleaning paddle, a bottom side wall cleaning paddle and a tank bottom cleaning paddle; the cleaning paddle components are fixed on the rotating shaft through connecting pieces; the inner wall cleaning paddle is in a strip shape and is parallel to the inner wall of the tank body; the mounting position of the inner wall cleaning paddle is higher than the position of the opening on the guide plate; the guide plate cleaning paddle is in a bent plate shape and comprises an upper plate and an inclined plate; the guide plate cleaning paddle is fixedly connected with the connecting piece through a supporting rod; the upper plate is parallel to the inner wall of the tank body, and the inclined plate is parallel to the guide plate; the bottom side wall cleaning paddle is in a strip shape and is parallel to the bottom side wall of the tank body; the tank bottom cleaning paddle is an arc-shaped plate; the lower end surface of the tank bottom cleaning paddle is parallel to the bottom of the tank body; a connecting block is fixed at the upper end of the tank bottom cleaning paddle; the connecting block is welded with a connecting rod; the tank bottom cleaning paddle is fixedly connected with the connecting piece through a connecting rod;
the inner wall cleaning paddle, the guide plate cleaning paddle, the bottom side wall cleaning paddle and the tank bottom cleaning paddle are fixed on the rotating shaft in a left-right staggered manner;
the plate-and-frame filter press is communicated with a feed inlet A of the liquid storage tank; a discharge port A of the liquid storage tank is communicated with a feed port B of the primary evaporator; the discharge hole B of the first-stage evaporator is communicated with the feed inlet C of the second-stage evaporator; a discharge hole C of the secondary evaporator is communicated with a feed pipe of the spray drying tank; the hot air outlet of the spray drying tank is communicated with the inlet of the cyclone separator.
2. The device for producing calcium chloride by leaching mother liquor according to claim 1, characterized in that: the driving device comprises a driving motor and a chain; the driving motor drives the chain to drive the rotating shaft.
3. The device for producing calcium chloride by leaching mother liquor according to claim 1, characterized in that: the inner wall cleaning paddle, the guide plate cleaning paddle, the bottom side wall cleaning paddle and the tank bottom cleaning paddle are all provided with cleaning bristles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750364.XU CN210048505U (en) | 2019-05-23 | 2019-05-23 | Device for producing calcium chloride by leaching mother liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750364.XU CN210048505U (en) | 2019-05-23 | 2019-05-23 | Device for producing calcium chloride by leaching mother liquor |
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| Publication Number | Publication Date |
|---|---|
| CN210048505U true CN210048505U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920750364.XU Active CN210048505U (en) | 2019-05-23 | 2019-05-23 | Device for producing calcium chloride by leaching mother liquor |
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| CN (1) | CN210048505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2819829C1 (en) * | 2023-08-22 | 2024-05-27 | Общество с ограниченной ответственностью "ИРКУТСКАЯ НЕФТЯНАЯ КОМПАНИЯ" | Method of producing calcium chloride from calcium chloride type brines |
-
2019
- 2019-05-23 CN CN201920750364.XU patent/CN210048505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2819829C1 (en) * | 2023-08-22 | 2024-05-27 | Общество с ограниченной ответственностью "ИРКУТСКАЯ НЕФТЯНАЯ КОМПАНИЯ" | Method of producing calcium chloride from calcium chloride type brines |
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Effective date of registration: 20230710 Granted publication date: 20200211 |