CN210521987U - Acid-base production system for phosphogypsum - Google Patents
Acid-base production system for phosphogypsum Download PDFInfo
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- CN210521987U CN210521987U CN201920666236.7U CN201920666236U CN210521987U CN 210521987 U CN210521987 U CN 210521987U CN 201920666236 U CN201920666236 U CN 201920666236U CN 210521987 U CN210521987 U CN 210521987U
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- rotary drum
- acid
- electrolytic cell
- solution pool
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Abstract
An acid-base system for producing phosphogypsum comprises a reaction tank (50), a three-leg centrifuge (51), a sodium sulfate solution tank (52), an electrolytic cell (53), an acid solution tank (54) and an alkali solution tank (55), wherein a sodium hydroxide solution inlet and a phosphogypsum inlet are formed in the top of the reaction tank (50), an electric stirring device is arranged in the reaction tank (50), a discharging pipe is arranged at the bottom of the reaction tank (50), the three-leg centrifuge (51) comprises a three-leg support (1), a shell (2), a rotary drum (3), a scraper discharging device and a blocking discharging device, a feeding hole is formed in the top of the shell (2), a liquid outlet is formed in the bottom of the shell (2), the shell (2) is installed on the three-leg support (1), a servo motor (4) is arranged on one side of the shell (2), and a; the advantages are that: the acid and alkali production speed is high, the filtering performance of the three-leg centrifuge is good, and blockage cannot occur.
Description
Technical Field
The utility model relates to an acid-base production facility field, concretely relates to ardealite production acid-base system.
Background
At present, on a production line for producing acid and alkali from phosphogypsum, sodium hydroxide and pretreated phosphogypsum are decomposed into sodium sulfate, a byproduct is calcium hydroxide, calcium hydroxide particles are very fine, and a common three-leg centrifuge cannot separate water.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned not enough, and provide an acid-base system is produced to ardealite.
The utility model comprises a reaction tank, a three-leg centrifuge, a sodium sulfate solution pool, an electrolytic cell, an acid solution pool and an alkali solution pool,
the top of the reaction tank is provided with a sodium hydroxide solution inlet and a phosphogypsum inlet, the reaction tank is internally provided with an electric stirring device, the bottom of the reaction tank is provided with a discharging pipe,
the three-foot centrifuge comprises a three-foot bracket, a shell, a rotary drum, a scraper discharging device and a blocking discharging device,
the top of the shell is provided with a feeding hole, the bottom of the shell is provided with a liquid outlet, the shell is arranged on a tripod, one side of the shell is provided with a servo motor, the bottom of the rotary drum is provided with a main shaft and is movably arranged on the tripod through the main shaft and a bearing, the servo motor drives the main shaft to rotate through a belt pulley, the rotary drum is positioned in the shell,
a water filtering area is formed between the inner wall of the shell and the outer wall of the rotary drum, a group of cleaning pipelines are arranged on the shell in vertical sequence, the water outlet ends of the cleaning pipelines are communicated with the water filtering area,
the scraper discharging device comprises a screw rod lifter, a first motor and a guide vertical plate,
the top of the shell is provided with a through hole, one end of the screw rod lifter is provided with a guide sliding block, the other end of a screw rod of the screw rod lifter penetrates through the through hole at the top of the shell and is positioned in the rotary drum, the end part of the other end of the screw rod lifter is provided with a scraper, the screw rod lifter is arranged at the top surface of the shell through a screw, a first motor is arranged at the top of the shell through a bracket, a power output shaft of the first motor is in transmission connection with a worm of the screw rod lifter, a guide groove is arranged on a guide vertical plate, the guide vertical plate is fixedly arranged at the top of the,
the blocking and discharging device comprises a baffle and a return spring, the bottom surface of the rotary drum is provided with a chute, a deslagging hole is arranged in the chute, the bottom of the baffle is provided with a first spring connecting plate, the baffle is slidably arranged in the chute and is positioned below the deslagging hole, the bottom surface of the rotary drum positioned at one side of the chute is provided with a second connecting plate, the first spring connecting plate is connected with the second connecting plate through the return spring,
a liquid inlet is arranged at the top of the sodium sulfate solution pool, a liquid outlet is arranged at the bottom of the sodium sulfate solution pool, a liquid inlet is arranged at the top of the electrolytic cell, an acid solution outlet and an alkaline solution outlet are respectively arranged at the bottom of the electrolytic cell, liquid inlets are respectively arranged on the acid solution pool and the alkaline solution pool,
the discharge pipe of the reaction tank is communicated with the feed inlet of the shell, the liquid outlet of the shell is communicated with the liquid inlet of the sodium sulfate solution pool through a conveying pipeline, the liquid outlet of the sodium sulfate solution pool is communicated with the liquid inlet of the electrolytic cell, the acid solution outlet of the electrolytic cell is communicated with the acid solution pool, and the alkaline solution outlet of the electrolytic cell is communicated with the alkaline solution pool.
The outer wall of the rotary drum is made of a stainless steel sintering net.
The blade of the scraper is in clearance fit with the inner wall of the rotary drum.
An O-shaped sealing ring used for sealing the top surface of the baffle is arranged on the discharge hole of the slag discharge hole.
The electrolytic cell is a bipolar membrane electrodialysis electrolytic cell.
The utility model has the advantages that: the acid and alkali production speed is high, the filtering performance of the three-leg centrifuge is good, and blockage cannot occur.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the three-leg centrifuge of the present invention.
Fig. 3 is a schematic top view of the three-leg centrifuge of the present invention.
Fig. 4 is a schematic sectional view of a-a of fig. 3 according to the present invention.
Fig. 5 is a schematic diagram of a partially enlarged structure of fig. 4 according to the present invention.
Fig. 6 is a schematic view of the drum in a bottom view.
Detailed Description
As shown in the attached drawings, the utility model comprises a reaction tank 50, a three-leg centrifuge 51, a sodium sulfate solution pool 52, an electrolytic cell 53, an acid solution pool 54 and an alkali solution pool 55,
the top of the reaction tank 50 is provided with a sodium hydroxide solution inlet and a phosphogypsum inlet, an electric stirring device is arranged in the reaction tank 50, the bottom of the reaction tank 50 is provided with a discharging pipe,
the three-leg centrifuge 51 comprises a three-leg bracket 1, a shell 2, a rotary drum 3, a scraper discharging device and a blocking discharging device,
the top of the shell 2 is provided with a feeding hole, the bottom of the shell 2 is provided with a liquid outlet, the shell 2 is arranged on the tripod bracket 1, one side of the shell 2 is provided with a servo motor 4, the bottom of the rotary drum 3 is provided with a main shaft and is movably arranged on the tripod bracket 1 through the main shaft and a bearing, the servo motor 4 drives the main shaft to rotate through a belt pulley, the rotary drum 3 is positioned in the shell 2,
a water filtering area is formed between the inner wall of the shell 2 and the outer wall of the rotary drum 3, a group of cleaning pipelines 5 are arranged on the shell 2, the group of cleaning pipelines 5 are vertically arranged in sequence, the water outlet end of each cleaning pipeline 5 is communicated with the water filtering area,
the scraper discharging device comprises a screw rod lifter 7, a first motor 8 and a guide vertical plate 9,
the top of the shell 2 is provided with a through hole, one end of a screw rod elevator 7 is provided with a guide sliding block 10, the other end of a screw rod of the screw rod elevator 7 penetrates through the through hole at the top of the shell 2 and is positioned in the rotary drum 3, the end part of the other end of the screw rod elevator 7 is provided with a scraper 11, the screw rod elevator 7 is arranged on the top surface of the shell 2 through a screw, a first motor 8 is arranged at the top of the shell 2 through a bracket, a power output shaft of the first motor 8 is in transmission connection with a worm of the screw rod elevator 7, a guide groove is arranged on a guide vertical plate 9, the guide vertical plate 9 is fixedly arranged at the top of the shell 2 and is,
the blocking and discharging device comprises a baffle 12 and a return spring 13, a chute 14 is arranged on the bottom surface of the rotary drum 3, a deslagging hole 15 is arranged in the chute 14, a first spring connecting plate 16 is arranged at the bottom of the baffle 12, the baffle 12 is slidably arranged in the chute 14 and is positioned below the deslagging hole 15, a second connecting plate 17 is arranged on the bottom surface of the rotary drum 3 at one side of the chute 14, the first spring connecting plate 16 is connected with the second connecting plate 17 through the return spring 13,
a liquid inlet is arranged at the top of the sodium sulfate solution pool 52, a liquid outlet is arranged at the bottom of the sodium sulfate solution pool 52, a liquid inlet is arranged at the top of the electrolytic cell 53, an acid solution outlet and an alkali solution outlet are respectively arranged at the bottom of the electrolytic cell 53, liquid inlets are respectively arranged on the acid solution pool 54 and the alkali solution pool 55,
the discharge pipe of the reaction tank 50 is communicated with the feed inlet of the shell 2, the liquid outlet of the shell 2 is communicated with the liquid inlet of the sodium sulfate solution tank 52 through a conveying pipeline, the liquid outlet of the sodium sulfate solution tank 52 is communicated with the liquid inlet of the electrolytic cell 53, the acid solution outlet of the electrolytic cell 53 is communicated with the acid solution tank 54, and the alkali solution outlet of the electrolytic cell 53 is communicated with the alkali solution tank 55.
The outer wall of the rotary drum 3 is made of stainless steel sintering net.
The blade of the scraper 11 is in clearance fit with the inner wall of the rotary drum 3.
An O-shaped sealing ring for sealing the top surface of the baffle plate 12 is arranged on the discharge hole of the slag discharge hole 15.
The electrolytic cell 53 is a bipolar membrane electrodialysis electrolytic cell.
The working mode is as follows: adding a sodium hydroxide solution and phosphogypsum into a reaction tank 50, stirring and mixing to decompose the sodium hydroxide solution and the phosphogypsum into a mixed solution of sodium sulfate and calcium hydroxide, separating calcium hydroxide from the mixed solution of sodium sulfate and calcium hydroxide by a three-leg centrifuge 51, adding the sodium sulfate solution into a sodium sulfate solution tank 52 for temporary storage, then adding the sodium sulfate solution into an electrolytic cell 53 to decompose sodium hydroxide and sulfuric acid, discharging the sodium hydroxide into an alkaline solution tank 55, and adding the sulfuric acid into an acid solution tank 54.
Calcium hydroxide solution is added into the rotary drum 3 from a feeding hole at the top of the shell 2, the servo motor 4 drives the rotary drum 3 to rotate, the baffle plate 12 slides along the chute 14 to block the slag discharge hole 15 under the action of centrifugal force, water is discharged into a water filtering area through meshes of the stainless steel sintering net and then is discharged from a water discharge pipe of the water filtering area, calcium hydroxide is remained in the rotary drum 3 after the filtration is finished, the rotary drum 3 is changed from high-speed rotation to low-speed rotation, the baffle plate 12 is pulled back by the reset spring 13, the slag discharge hole 15 is opened, and the calcium hydroxide in the rotary drum 3 is discharged,
the screw rod of the screw rod lifter 7 is driven by the first motor 8 to slide downwards along the guide vertical plate 9, and the scraper 11 scrapes off calcium hydroxide attached to the inner wall of the rotary drum 3.
When the rotary drum 3 needs to be cleaned, water is sprayed towards the rotary drum 3 through the group of cleaning pipelines 5 to wash the outer wall of the rotary drum 3, and the rotary drum 3 slowly rotates in the cleaning process until the cleaning is finished.
Claims (5)
1. An acid-base system for producing phosphogypsum is characterized by comprising a reaction tank (50), a three-leg centrifuge (51), a sodium sulfate solution pool (52), an electrolytic cell (53), an acid solution pool (54) and an alkali solution pool (55),
the top of the reaction tank (50) is provided with a sodium hydroxide solution inlet and a phosphogypsum inlet, an electric stirring device is arranged in the reaction tank (50), the bottom of the reaction tank (50) is provided with a discharging pipe,
the three-leg centrifuge (51) comprises a three-leg bracket (1), a shell (2), a rotary drum (3), a scraper discharging device and a blocking discharging device,
the top of the shell (2) is provided with a feeding hole, the bottom of the shell (2) is provided with a liquid outlet, the shell (2) is arranged on the tripod bracket (1), one side of the shell (2) is provided with a servo motor (4), the bottom of the rotary drum (3) is provided with a main shaft and is movably arranged on the tripod bracket (1) through the main shaft and a bearing, the servo motor (4) drives the main shaft to rotate through a belt pulley, the rotary drum (3) is positioned in the shell (2),
a water filtering area is formed between the inner wall of the shell (2) and the outer wall of the rotary drum (3), a group of cleaning pipelines (5) are arranged on the shell (2), the group of cleaning pipelines (5) are vertically and sequentially arranged, the water outlet end of each cleaning pipeline (5) is communicated with the water filtering area,
the scraper discharging device comprises a screw rod lifter (7), a first motor (8) and a guide vertical plate (9),
the top of the shell (2) is provided with a through hole, one end of a screw rod elevator (7) is provided with a guide sliding block (10), the other end of a screw rod of the screw rod elevator (7) penetrates through the through hole at the top of the shell (2) and is positioned in the rotary drum (3), the end part of the other end of the screw rod elevator (7) is provided with a scraper (11), the screw rod elevator (7) is arranged on the top surface of the shell (2) through a screw, a first motor (8) is arranged on the top of the shell (2) through a bracket, a power output shaft of the first motor (8) is connected with a worm of the screw rod elevator (7) in a transmission way, a guide groove is formed in the guide vertical plate (9), the guide vertical plate (9) is fixedly arranged at the top of the shell (2) and is positioned at one side of the,
the material blocking and discharging device comprises a baffle (12) and a return spring (13), a chute (14) is arranged on the bottom surface of the rotary drum (3), a slag discharge hole (15) is formed in the chute (14), a first spring connecting plate (16) is arranged at the bottom of the baffle (12), the baffle (12) is slidably mounted in the chute (14) and is positioned below the slag discharge hole (15), a second connecting plate (17) is arranged on the bottom surface of the rotary drum (3) positioned on one side of the chute (14), the first spring connecting plate (16) is connected with the second connecting plate (17) through the return spring (13),
a liquid inlet is arranged at the top of the sodium sulfate solution pool (52), a liquid outlet is arranged at the bottom of the sodium sulfate solution pool (52), a liquid inlet is arranged at the top of the electrolytic cell (53), an acid solution outlet and an alkali solution outlet are respectively arranged at the bottom of the electrolytic cell (53), liquid inlets are respectively arranged on the acid solution pool (54) and the alkali solution pool (55),
the discharge pipe of the reaction tank (50) is communicated with the feed inlet of the shell (2), the liquid outlet of the shell (2) is communicated with the liquid inlet of the sodium sulfate solution pool (52) through a conveying pipeline, the liquid outlet of the sodium sulfate solution pool (52) is communicated with the liquid inlet of the electrolytic cell (53), the acid solution outlet of the electrolytic cell (53) is communicated with the acid solution pool (54), and the alkali solution outlet of the electrolytic cell (53) is communicated with the alkali solution pool (55).
2. The phosphogypsum production acid-base system according to claim 1, characterized in that the outer wall of the rotating drum (3) is made of stainless steel sintered mesh.
3. The phosphogypsum production acid-base system according to claim 1, wherein the blade edge of the scraper (11) is in clearance fit with the inner wall of the rotary drum (3).
4. The system for producing acid and alkali by ardealite according to claim 1, characterized in that an O-shaped sealing ring for sealing the top surface of the baffle plate (12) is arranged on the discharge hole of the slag discharge hole (15).
5. The phosphogypsum acid-base production system according to claim 1, characterized in that the electrolytic cell (53) is a bipolar membrane electrodialysis electrolytic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666236.7U CN210521987U (en) | 2019-05-10 | 2019-05-10 | Acid-base production system for phosphogypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666236.7U CN210521987U (en) | 2019-05-10 | 2019-05-10 | Acid-base production system for phosphogypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210521987U true CN210521987U (en) | 2020-05-15 |
Family
ID=70593097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920666236.7U Expired - Fee Related CN210521987U (en) | 2019-05-10 | 2019-05-10 | Acid-base production system for phosphogypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210521987U (en) |
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2019
- 2019-05-10 CN CN201920666236.7U patent/CN210521987U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 Termination date: 20210510 |