CN116999889B - Magnesium sulfate crystallization separation system and process - Google Patents
Magnesium sulfate crystallization separation system and process Download PDFInfo
- Publication number
- CN116999889B CN116999889B CN202311277112.7A CN202311277112A CN116999889B CN 116999889 B CN116999889 B CN 116999889B CN 202311277112 A CN202311277112 A CN 202311277112A CN 116999889 B CN116999889 B CN 116999889B
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- tank
- magnesium sulfate
- crystallization
- crystallization separation
- pipe
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 title claims abstract description 262
- 238000002425 crystallisation Methods 0.000 title claims abstract description 246
- 230000008025 crystallization Effects 0.000 title claims abstract description 246
- 238000000926 separation method Methods 0.000 title claims abstract description 222
- 229910052943 magnesium sulfate Inorganic materials 0.000 title claims abstract description 131
- 235000019341 magnesium sulphate Nutrition 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 238000003756 stirring Methods 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000013078 crystal Substances 0.000 claims description 41
- 239000000110 cooling liquid Substances 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 14
- 230000008021 deposition Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000012452 mother liquor Substances 0.000 description 9
- 230000007306 turnover Effects 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- 239000002826 coolant Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/02—Crystallisation from solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/075—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements located in a closed housing and comprising scrapers or agitators on the cake side of the filtering elements, e.g. Nutsche- or Rosenmund-type filters for performing multiple step operations such as chemical reactions, filtering and cake treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/204—Systems for applying vacuum to filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention relates to the technical field of crystallization separation, and discloses a magnesium sulfate crystallization separation system and a process, wherein the magnesium sulfate crystallization separation system comprises an upper crystallization separation tank and a lower crystallization separation tank for storing magnesium sulfate solution, wherein the top end of the upper crystallization separation tank is provided with a feed pipe, the upper crystallization separation tank is arranged right above the lower crystallization separation tank, the tank walls of the upper crystallization separation tank and the lower crystallization separation tank are jointly provided with a C-shaped tank body connecting rod, the magnesium sulfate crystallization separation system further comprises a separation unit, a sealing unit and a pouring unit, the magnesium sulfate crystallization separation process generates negative pressure suction through the operation of a negative pressure fan, the magnesium sulfate solution can be filtered by a separation filter screen through the action of negative pressure, a stirring shaft drives a spiral blade and a stirring rod to rotate, the spiral blade can generate downward thrust, the filtration of the magnesium sulfate solution is accelerated, the movement of the stirring rod can uniformly disperse particles in the solution, and the deposition and blocking phenomena of the particles on the separation filter screen are reduced.
Description
Technical Field
The invention relates to the technical field of crystallization separation, in particular to a magnesium sulfate crystallization separation system and a magnesium sulfate crystallization separation process.
Background
The magnesium sulfate crystallization is usually carried out by heating magnesium sulfate solution to 80-90 deg.C, then placing the solution in environment below 10 deg.C, precipitating magnesium sulfate crystal, i.e. magnesium sulfate crystallization, and separating magnesium sulfate crystal from mother liquor by solid-liquid separation.
The invention discloses a crystallization separation device for magnesium sulfate production, which comprises a separation tank, a crystallization bin, a mother liquor conveying pipe, a communication bin, a ceramic membrane and a partition plate, wherein two partition plates are sequentially arranged from top to bottom, a liquid storage cavity for storing mother liquor is enclosed between one partition plate below and the inner bottom wall of the separation tank, and the crystallization bin is shaped like a beam opening which is gradually narrowed from top to bottom through the arrangement of the crystallization bin, so that magnesium sulfate mother liquor in the conveying pipe can flow downwards along the inner wall of the crystallization bin, and spiral water flow is formed. The design can effectively wash the magnesium sulfate crystals attached on the inner wall of the crystallization bin, and prevent the magnesium sulfate crystals from affecting the crystal yield.
The above patent suffers from the following drawbacks:
1. the separating device comprises a separating tank, a crystallization bin, a mother liquor conveying pipe, a communicating bin, a ceramic membrane and a partition plate, wherein the two partition plates are sequentially arranged from top to bottom, a liquid storage cavity for storing mother liquor is formed between one partition plate at the lower part and the inner bottom wall of the separating tank, the arc plate is driven to rotate by spiral water flow generated when the mother liquor flows on the inner wall of the crystallization bin, the arc plate can drive a rotating disc to rotate, so that stirring and pressurizing effects are generated on the mother liquor in the communicating bin, the pressurizing plate shields the upper part of the ceramic membrane, the solid-liquid separation efficiency of the mother liquor is also influenced, and the solid-liquid separation effect is not ideal;
2. after crystallization separation is finished, magnesium sulfate crystals generated by crystallization are accumulated on the surface of the ceramic membrane, the cover plate is required to be opened, the magnesium sulfate crystals can be taken out after entering the crystallization bin, and the space in the crystallization bin is smaller, so that the magnesium sulfate crystals accumulated on the surface of the ceramic membrane cannot be taken out conveniently.
Disclosure of Invention
In view of the problems that magnesium sulfate crystals generated by crystallization in the prior art are accumulated on the surface of a ceramic membrane, a cover plate is required to be opened and the magnesium sulfate crystals can be taken out after entering a crystallization bin, and the magnesium sulfate crystals accumulated on the surface of the ceramic membrane cannot be taken out conveniently, a magnesium sulfate crystallization separation system and a magnesium sulfate crystallization separation process are provided.
The application provides a magnesium sulfate crystallization separation system, its aim at: can realize convenient taking out of the magnesium sulfate crystals piled after crystallization.
The technical scheme of the invention is as follows: the magnesium sulfate crystallization separation system comprises an upper crystallization separation tank and a lower crystallization separation tank for storing magnesium sulfate solution, wherein a feed pipe is arranged at the top end of the upper crystallization separation tank, the upper crystallization separation tank is arranged right above the lower crystallization separation tank, a C-shaped tank body connecting rod is arranged on the tank walls of the upper crystallization separation tank and the lower crystallization separation tank together, and the magnesium sulfate crystallization separation system further comprises a separation unit, a sealing unit and a dumping unit;
the separation unit comprises a separation part, is arranged on the upper crystallization separation tank and the lower crystallization separation tank and is used for separating magnesium sulfate solution;
the separating component comprises a collecting disc, the collecting disc is arranged between an upper crystallization separating tank and a lower crystallization separating tank, a separating filter screen is arranged on the collecting disc, an arc plate is arranged on the outer disc wall of the collecting disc, the arc plate is fixedly connected to the tank wall of the lower crystallization separating tank, the outlet end of the lower crystallization separating tank is communicated with the collecting tank, a liquid discharge pipe is arranged on the collecting tank, a valve is arranged on the liquid discharge pipe, a cooling liquid circulating pipe is arranged in the upper crystallization separating tank, two ends of the cooling liquid circulating pipe extend out of the upper crystallization separating tank, a conveying pump is arranged on the tank wall of the collecting tank, the inlet end of the conveying pump is communicated with a liquid inlet pipe, one end of the liquid inlet pipe is communicated with the collecting tank, the outlet end of the conveying pump is communicated with a liquid outlet pipe, and one end of the liquid outlet pipe is communicated with the upper crystallization separating tank;
the negative pressure component is arranged on the separation component and used for accelerating the flow of the magnesium sulfate solution;
the stirring component is arranged on the separating component and is used for accelerating the flow of the magnesium sulfate solution and preventing excessive accumulation of magnesium sulfate crystal particles on the separating component;
the sealing unit is arranged on the upper crystallization separation tank and the lower crystallization separation tank and is used for improving the sealing performance among the separation unit, the upper crystallization separation tank and the lower crystallization separation tank;
the pouring unit is arranged on the separating unit and is used for taking out magnesium sulfate crystal particles from the separating unit.
The utility model provides a magnesium sulfate crystallization separation system, correspond the outside coolant circulation equipment of connection through the pipeline respectively with the both ends of coolant circulation pipe, carry the coolant liquid to the coolant circulation intraductal by outside coolant circulation equipment continuous circulation, the collecting tray withstands on the arc, carry the magnesium sulfate solution after heating to the upper crystallization knockout drum through the inlet pipe on the upper crystallization knockout drum in, get into the magnesium sulfate solution in the upper crystallization knockout drum, under the cooling effect of coolant circulation pipe, the magnesium sulfate solution cools off, make the magnesium sulfate in the magnesium sulfate solution gradually form the crystal, the magnesium sulfate crystal is left in the collecting tray, the solution then falls into in the lower crystallization knockout drum after passing through the separation filter screen, the solution reentrant is in the collecting drum, then carry by the delivery pump, solution in the collecting drum reentrant to the upper crystallization knockout drum through feed pipe and drain pipe, solution rethread cooling liquid circulation pipe in the upper crystallization knockout drum carries out crystallization, carry out cyclic crystallization.
Preferably, the negative pressure component comprises a negative pressure fan, the negative pressure fan is arranged on the tank wall of the upper crystallization separation tank, an air inlet pipe is communicated with the air inlet end of the negative pressure fan, an air suction ring pipe is sleeved outside the outlet end of the lower crystallization separation tank, the air suction ring pipe is communicated with the lower crystallization separation tank through an air hole, the air inlet pipe is communicated with the air suction ring pipe, an air outlet pipe is communicated with the air outlet end of the negative pressure fan, an air collecting cover is arranged at the top of the upper crystallization separation tank, one end of the air outlet pipe is communicated with the air collecting cover, and a guide hopper is arranged inside the outlet end of the lower crystallization separation tank.
Through the cooperation of induced draft ring canal, air-supply line, negative pressure fan, outlet duct, negative pressure fan work produces the negative pressure to the inside below that is located the collecting tray of crystallization knockout drum down produces the negative pressure, thereby can accelerate the magnesium sulfate solution and be filtered by the separation filter screen through the negative pressure.
Preferably, the stirring component comprises a stirring shaft, a helical blade is arranged on the stirring shaft, a stirring rod is arranged on the stirring shaft, and a wind wheel is fixedly connected to the top end of the stirring shaft after penetrating through the wind collecting cover and extending into the stirring shaft.
Negative pressure fan exhaust air enters into the wind collecting cover through the outlet duct, and then rotates through wind-force promotion wind wheel, and the wind wheel is rotatory to drive the (mixing) shaft and rotate, and the (mixing) shaft drives helical blade and puddler and rotates, produces a thrust through helical blade is rotatory, can further accelerate the filtration of magnesium sulfate solution, and can drive the puddler and rotate when the (mixing) shaft rotates, stir through the puddler, make the granule in the magnesium sulfate solution evenly disperse, reduce the deposit and the jam condition of magnesium sulfate crystallization granule on the separation filter screen, reduce the magnesium sulfate crystallization jam and influence filterable condition on the separation filter screen.
Preferably, the sealing unit comprises a sealing reinforcing part, the sealing reinforcing part is arranged on the upper crystallization separation tank and the lower crystallization separation tank, the sealing reinforcing part comprises a communicating pipe, the opposite sides of the upper crystallization separation tank and the lower crystallization separation tank are respectively provided with a hollow sealing ring, one end of the communicating pipe is communicated with the inner part of the wind collecting cover, and the other end of the communicating pipe is communicated with the inner part of the sealing ring through a connecting pipe.
Exhaust air in the wind collecting cover enters into the sealing ring through the communicating pipe, the air pressure in the sealing ring is increased, so that the sealing ring positioned on the upper crystallization separation tank is tightly attached to the top surface of the collecting disc, the sealing ring positioned on the lower crystallization separation tank is tightly attached to the bottom surface of the collecting disc, the tightness between the collecting disc and the upper crystallization separation tank and between the collecting disc and the lower crystallization separation tank is improved, and the outflow of magnesium sulfate solution is prevented.
Preferably, the pressure relief part is arranged on the sealing reinforcing part, the pressure relief part comprises a pressure relief exhaust pipe, one end of the pressure relief exhaust pipe is communicated with the inside of the sealing ring, a long-strip exhaust outlet is formed in the other end of the pressure relief exhaust pipe, a pressure relief valve plate is arranged in the pressure relief exhaust pipe in a sliding mode, a reset piece is arranged in the pressure relief exhaust pipe, and the reset piece is a spring.
When the air pressure in the sealing ring is large, the reset piece is lengthened when the thrust of the air pressure to the pressure relief valve plate is larger than the elastic force of the reset piece, so that a gap is formed between the pressure relief valve plate and the inner wall of the pressure relief exhaust pipe, and then the air in the sealing ring is exhausted to the outside through the exhaust outlet by the pressure relief exhaust pipe.
Preferably, the pouring unit comprises a rotating part, the rotating part is arranged on the separating part, the rotating part comprises a rotating rod, one end of the rotating rod is fixedly connected with a tray wall of the collecting tray, a bracket is fixedly connected with a tank wall of the lower crystallization separating tank, a vertical shaft is fixedly connected to the bracket, a rotating sleeve is rotationally connected to the top end of the vertical shaft, the rotating rod is rotationally connected to the rotating sleeve, and a pushing handle is arranged on the rotating sleeve.
After crystallization filtration separation is finished, the pushing handle is held and pushed to drive the rotating sleeve to rotate along the vertical shaft, the rotating sleeve drives the rotating rod to enable the collecting disc to rotate, and at the moment, the rotating rod slides on the arc-shaped rod through the sliding through hole, so that the collecting disc moves out of the upper crystallization separation tank and the lower crystallization separation tank.
Preferably, the turning part comprises an arc-shaped rod, a sliding through hole matched with the arc-shaped rod is formed in the turning rod, the turning rod is arranged on the arc-shaped rod in a sliding mode through the sliding through hole, a bevel gear is fixedly connected to one end, far away from the collecting disc, of the turning rod, a bevel gear disc is fixedly sleeved on a vertical shaft, a bevel tooth groove portion is formed in the bevel tooth disc, and a receiving hopper is arranged on the tank wall of the collecting tank.
After the collecting tray moves out of the upper crystallization separating tank and the lower crystallization separating tank, the rotating rod is separated from the arc-shaped rod, the bevel gear is just meshed with the bevel gear groove part on the bevel gear plate after separation, the bevel gear can drive the rotating rod to overturn in the meshing motion process of the bevel gear and the bevel gear groove part, the rotating rod drives the collecting tray to synchronously overturn, the collecting tray is located above the receiving hopper when in overturning, and the magnesium sulfate crystals located in the collecting tray are poured into the receiving hopper along with overturning of the collecting tray.
The application also provides a magnesium sulfate crystallization separation process, which aims at: can realize convenient taking out of the magnesium sulfate crystals piled after crystallization.
The technical scheme of the invention is as follows: a magnesium sulfate crystallization separation process comprises the following steps,
conveying the heated magnesium sulfate solution into an upper crystallization separation tank, cooling by heat exchange of cooling liquid in a cooling liquid circulation pipe, crystallizing the magnesium sulfate solution in a cooling mode, enabling the magnesium sulfate crystals to stay in a collecting tray, enabling the solution to fall into a lower crystallization separation tank after passing through a separation filter screen, enabling the solution to enter the collecting tank again, and then carrying out circulating conveying by a conveying pump, and enabling the solution entering the upper crystallization separation tank to be crystallized by the cooling liquid circulation pipe;
the negative pressure fan works to generate negative pressure suction force, so that the filtration of the magnesium sulfate solution by the separation filter screen can be accelerated through the negative pressure, the wind wheel is driven by wind power to rotate, a thrust force is generated through the rotation of the spiral blade, and the stirring rod is used for stirring, so that particles in the magnesium sulfate solution are uniformly dispersed;
air exhausted from the air collecting cover enters the sealing ring through the communicating pipe, the air pressure in the sealing ring is increased, and the tightness among the collecting disc, the upper crystallization separation tank and the lower crystallization separation tank is improved;
when the air pressure in the sealing ring is larger, the air in the sealing ring is discharged to the outside through the air outlet by the pressure relief exhaust pipe.
According to the magnesium sulfate crystallization separation process, the cooling liquid in the cooling liquid circulation pipe is used for cooling to promote crystallization of magnesium sulfate solution, the separation filter screen is used for filtering separation, the conveying pump is used for circulating conveying, the solution entering the upper crystallization separation tank is crystallized through the cooling liquid circulation pipe, and the crystallization rate of the magnesium sulfate solution is improved
Preferably, the pushing handle is held and pushed to drive the rotating sleeve to rotate along the vertical shaft, the rotating sleeve drives the rotating rod to enable the collecting tray to rotate, and at the moment, the rotating rod slides on the arc-shaped rod through the sliding through hole, so that the collecting tray moves out of the upper crystallization separation tank and the lower crystallization separation tank.
The collecting tray is rotated by pushing the pushing handle, so that the collecting tray can be conveniently moved out of the upper crystallization separating tank and the lower crystallization separating tank.
Preferably, after the collecting tray is moved out of the upper crystallization separating tank and the lower crystallization separating tank, the rotating rod is separated from the arc-shaped rod, and the rotating rod drives the collecting tray to turn over in the process of meshing movement of the bevel gear and the bevel gear groove part, so that magnesium sulfate crystals in the collecting tray are poured into the receiving hopper.
By overturning the collecting tray, the magnesium sulfate crystals in the collecting tray can be conveniently poured into the receiving hopper.
Compared with the prior art, the invention has the following beneficial effects:
1. the negative pressure fan works to generate negative pressure suction, the magnesium sulfate solution can be accelerated to be filtered by the separation filter screen through the action of negative pressure, the filtering efficiency is improved, meanwhile, air in the lower crystallization separation tank is conveyed into the wind collecting cover through the air suction ring pipe, the air inlet pipe, the negative pressure fan and the air outlet pipe, wind power entering the wind collecting cover drives the wind wheel to rotate, the stirring shaft is driven to rotate, the stirring shaft drives the spiral blades and the stirring rod to rotate, the spiral blades rotate to generate downward thrust, the magnesium sulfate solution is accelerated to be filtered, in addition, particles in the solution can be uniformly dispersed through the movement of the stirring rod, the deposition and blocking phenomena of the particles on the separation filter screen are reduced, the filtering separation effect is further improved, and the solid-liquid separation efficiency is ensured;
2. the air exhausted from the air collecting cover enters the sealing ring through the communicating pipe to increase the internal air pressure, so that the respective sealing rings on the upper crystallization separation tank and the lower crystallization separation tank are tightly attached to the top surface and the bottom surface of the collecting tray, the tightness among the collecting tray, the upper crystallization separation tank and the lower crystallization separation tank is improved, and the magnesium sulfate solution can be prevented from running off through the gaps in the way;
3. when the air pressure in the sealing ring is large, the thrust of the air pressure on the pressure relief valve plate is larger than the elastic force of the resetting piece, so that the resetting piece is lengthened, a gap is formed between the pressure relief valve plate and the inner wall of the pressure relief exhaust pipe, and through the gap, air in the sealing ring is exhausted from the pressure exhaust pipe to the outside through the exhaust port;
4. the pushing handle is held and pushed to drive the rotating sleeve to rotate along the vertical shaft, and the rotating sleeve is connected with the rotating rod, so that the collecting tray horizontally rotates, the rotating rod slides on the arc-shaped rod through the sliding through hole, the collecting tray is controlled and moved, and in the process, the collecting tray is moved out of the upper crystallization separating tank and the lower crystallization separating tank;
5. after the collecting tray moves out of the upper crystallization separating tank and the lower crystallization separating tank completely, the rotating rod is separated from the arc-shaped rod, at the moment, the bevel gear is just meshed with the bevel gear groove part on the bevel gear disc, in the meshing motion between the bevel gear and the bevel gear groove part, the bevel gear can drive the rotating rod to overturn, the rotating rod can drive the collecting tray to synchronously overturn, and in the overturning process of the collecting tray, magnesium sulfate crystals above the collecting tray are poured into the receiving hopper, so that the magnesium sulfate crystals are conveniently taken out.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of a wind collection housing of the present invention;
FIG. 4 is an enlarged view of the invention at A in FIG. 2;
FIG. 5 is an enlarged view of the invention at B in FIG. 2;
FIG. 6 is a schematic view of a first view angle of the present invention;
FIG. 7 is a schematic view of a pouring unit according to the invention;
FIG. 8 is a schematic view of a rotating member of the present invention;
fig. 9 is a schematic view of the invention at the inverted discharge element.
The figure shows: 1. a crystallization separation tank is arranged; 2. a lower crystallization separation tank; 3. a tank connecting rod; 4. a separation unit; 41. a separation member; 411. a collection tray; 412. separating a filter screen; 413. an arc-shaped plate; 414. a collection tank; 415. a liquid discharge pipe; 416. a cooling liquid circulation pipe; 417. a transfer pump; 418. a liquid inlet pipe; 419. a liquid outlet pipe; 42. a negative pressure member; 421. a negative pressure fan; 422. an air inlet pipe; 423. an air suction ring pipe; 424. an air outlet pipe; 425. a wind collecting hood; 426. a guide hopper; 43. a stirring member; 431. a stirring shaft; 432. a helical blade; 433. a stirring rod; 434. a wind wheel; 5. a sealing unit; 51. a seal reinforcing member; 511. a communicating pipe; 512. a seal ring; 52. a pressure relief member; 521. a pressure relief exhaust pipe; 522. an air outlet; 523. a pressure relief valve plate; 524. a reset member; 6. a pouring unit; 61. a rotating member; 611. a rotating lever; 612. a bracket; 613. a vertical axis; 614. a rotating sleeve; 615. a push handle; 62. turning over the discharging component; 621. an arc-shaped rod; 622. a sliding through hole; 623. bevel gears; 624. conical fluted disc; 625. a tapered tooth slot portion; 626. and (5) receiving a hopper.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Embodiment 1, refer to fig. 1-4, in order to provide a magnesium sulfate crystallization separation system for a first embodiment of the present invention, the system includes an upper crystallization separation tank 1 and a lower crystallization separation tank 2 for storing magnesium sulfate solution, a feed pipe is disposed at the top end of the upper crystallization separation tank 1, the upper crystallization separation tank 1 is disposed right above the lower crystallization separation tank 2, a "C" tank connecting rod 3 is disposed on tank walls of the upper crystallization separation tank 1 and the lower crystallization separation tank 2 together, and the system further includes a separation unit 4, a sealing unit 5 and a pouring unit 6, wherein the sealing unit 5 may be an inflatable sealing ring; the material pouring unit 6 can be a material pouring machine, and the sealing unit 5 is arranged on the upper crystallization separation tank 1 and the lower crystallization separation tank 2 and is used for improving the sealing performance between the separation unit 4 and the upper crystallization separation tank 1 and the lower crystallization separation tank 2; a pouring unit 6 is provided on the separation unit 4 for taking out magnesium sulfate crystal particles from the separation unit 4.
Referring to fig. 1 to 4, the separation unit 4 is disposed on the upper crystallization separation tank 1 and the lower crystallization separation tank 2, for accelerating the separation of the magnesium sulfate solution, the separation unit 4 includes a separation member 41 disposed on the upper crystallization separation tank 1 and the lower crystallization separation tank 2, for separating the magnesium sulfate solution, the separation member 41 includes a collection tray 411, the collection tray 411 is disposed between the upper crystallization separation tank 1 and the lower crystallization separation tank 2, a separation screen 412 is disposed on the collection tray 411, the separation screen 412 is a ceramic membrane, an arc plate 413 is disposed on an outer tray wall of the collection tray 411, the arc plate 413 is fixedly connected to a tank wall of the lower crystallization separation tank 2, an outlet end of the lower crystallization separation tank 2 is communicated with a collection tank 414, a drain pipe 415 is disposed on the collection tank 414, the drain pipe 415 is communicated with the collection tank 414, a valve is disposed on the drain pipe 415, a cooling liquid 416 is disposed in the upper crystallization separation tank 1, both ends of the cooling liquid 416 extend out of the upper crystallization separation tank 1, a delivery pump 412 is disposed on a tank wall of the collection tank 414, a delivery pump 417 is disposed on a tank wall of the delivery pump 417, an inlet end of the delivery pump 417 is fixedly connected to the collection tank 417, and an inlet end of the delivery pump 417 is fixedly connected to the delivery pump 419 is disposed on the delivery tank 417.
Specifically, the cooling liquid is conveyed into the cooling liquid circulation pipe 416, the collecting tray 411 is kept against the arc plate 413, the heated magnesium sulfate solution is conveyed into the upper crystallization separation tank 1 through the feeding pipe on the upper crystallization separation tank 1, the magnesium sulfate solution enters the upper crystallization separation tank 1, the magnesium sulfate solution is cooled and crystallized under the cooling action of the cooling liquid circulation pipe 416, the magnesium sulfate crystals are remained in the collecting tray 411, the solution falls into the lower crystallization separation tank 2 after passing through the separation filter screen 412, the solution enters the collecting tank 414 again, the conveying pump 417 is used for conveying, the solution in the collecting tank 414 enters the upper crystallization separation tank 1 again through the liquid inlet pipe 418 and the liquid outlet pipe 419, and the solution entering the upper crystallization separation tank 1 is crystallized through the cooling liquid circulation pipe 416.
Referring to fig. 1-4, a negative pressure component 42 is disposed on the separating component 41 and is used for accelerating the flow of the magnesium sulfate solution, the negative pressure component 42 comprises a negative pressure fan 421, the negative pressure fan 421 is disposed on the tank wall of the upper crystallization separating tank 1, the negative pressure fan 421 is fixedly mounted on the tank wall of the upper crystallization separating tank 1, an air inlet pipe 422 is communicated with the air inlet end of the negative pressure fan 421, an air suction ring pipe 423 is sleeved outside the outlet end of the lower crystallization separating tank 2, the air inlet pipe 422 is communicated with the air suction ring pipe 423 through an opened vent hole, the air outlet end of the negative pressure fan 421 is communicated with an air outlet pipe 424, the top of the upper crystallization separating tank 1 is provided with an air collecting cover 425, the air collecting cover 425 is fixedly connected with the upper crystallization separating tank 1, one end of the air outlet pipe 424 is communicated with the air collecting cover 425, and the inner side of the outlet end of the lower crystallization separating tank 2 is provided with a guide hopper 426.
Specifically, through the cooperation of the air suction ring pipe 423, the air inlet pipe 422, the negative pressure fan 421 and the air outlet pipe 424, the negative pressure fan 421 works to generate negative pressure, so that the negative pressure is generated below the collecting tray 411 in the lower crystallization separation tank 2.
Referring to fig. 2-3, a stirring member 43 is disposed on the separating member 41, for accelerating the flow of the magnesium sulfate solution and preventing excessive accumulation of magnesium sulfate crystal particles on the separating member 41, the stirring member 43 includes a stirring shaft 431, the stirring shaft 431 is rotatably connected to the upper crystal separating tank 1, a spiral blade 432 is disposed on the stirring shaft 431, the spiral blade 432 is fixedly sleeved on the stirring shaft 431, a stirring rod 433 is disposed on the stirring shaft 431, the stirring rod 433 is fixedly connected to a shaft wall of the stirring shaft 431, and a wind wheel 434 is fixedly connected after the top end of the stirring shaft 431 passes through the wind collecting cover 425 and stretches into the stirring shaft.
Specifically, the air discharged by the negative pressure fan 421 enters the wind collecting cover 425 through the air outlet pipe 424, and then pushes the wind wheel 434 to rotate through wind force, the wind wheel 434 rotates to drive the stirring shaft 431 to rotate, the stirring shaft 431 drives the spiral blade 432 and the stirring rod 433 to rotate, a thrust is generated through the rotation of the spiral blade 432, the filtration of magnesium sulfate solution can be further accelerated, and the stirring rod 433 can be driven to rotate when the stirring shaft 431 rotates, and stirring is performed through the stirring rod 433.
In the use process, two ends of a cooling liquid circulation pipe 416 are correspondingly connected with external cooling liquid circulation equipment through pipelines respectively, the external cooling liquid circulation equipment continuously circulates to convey cooling liquid into the cooling liquid circulation pipe 416, a heated magnesium sulfate solution is conveyed into the upper crystallization separation tank 1 through a feeding pipe on the upper crystallization separation tank 1, the magnesium sulfate solution in the upper crystallization separation tank 1 is cooled under the cooling effect of the cooling liquid circulation pipe 416, magnesium sulfate in the magnesium sulfate solution gradually forms crystals, the magnesium sulfate crystals are left in a collecting tray 411, the solution falls into a lower crystallization separation tank 2 after passing through a separation filter screen 412, the solution enters a collecting tank 414 again, then is conveyed by a conveying pump 417, the solution in the collecting tank 414 enters the upper crystallization separation tank 1 through a liquid inlet pipe 418 and a liquid outlet pipe 419, and the solution entering the upper crystallization separation tank 1 is crystallized through the cooling liquid circulation pipe 416 again, and the circulating crystallization is carried out; through the cooperation of induced draft ring canal 423, air-supply line 422, negative pressure fan 421, outlet duct 424, negative pressure fan 421 work produces the negative pressure, thereby the inside below that is located collecting tray 411 of crystallization knockout drum 2 produces the negative pressure, thereby can accelerate the magnesium sulfate solution by separating filter screen 412 filtration through the negative pressure, the air of negative pressure fan 421 exhaust passes through outlet duct 424 and gets into to collecting fan housing 425, and then through wind-force promotion wind wheel 434, wind wheel 434 rotation drive (mixing) shaft 431 rotates, the (mixing) shaft 431 drives helical blade 432 and puddler 433 rotate, produce a thrust through helical blade 432 rotation, can further accelerate the filtration of magnesium sulfate solution, and can drive puddler 433 and rotate when stirring shaft 431 rotates, stir through puddler 433, make the granule in the magnesium sulfate solution evenly disperse, reduce the deposit and the jam condition on separating filter screen 412 of magnesium sulfate crystallization granule, reduce the condition that the magnesium sulfate crystallization is blockked up on separating filter screen 412 and influence the filtration.
Embodiment 2, referring to fig. 1-2 and 5-6, is a second embodiment of the present invention, which differs from the first embodiment in that: the sealing unit 5 includes a sealing reinforcing member 51, the sealing reinforcing member 51 is disposed on the upper and lower crystallization separation tanks 1 and 2, the sealing reinforcing member 51 includes a communication pipe 511, hollow sealing rings 512 are disposed on opposite sides of the upper and lower crystallization separation tanks 1 and 2, grooves for mounting the sealing rings 512 are formed in the upper and lower crystallization separation tanks 1 and 2, the sealing rings 512 are fixedly mounted in the grooves, one end of the communication pipe 511 is communicated with the inside of the air collecting hood 425, and the other end of the communication pipe 511 is communicated with the inside of the sealing rings 512 through the communication pipe.
Specifically, the air discharged from the air collecting hood 425 enters the sealing ring 512 through the communicating pipe 511, and the air pressure in the sealing ring 512 is increased, so that the sealing ring 512 on the upper crystallization separation tank 1 is tightly attached to the top surface of the collecting tray 411, and the sealing ring 512 on the lower crystallization separation tank 2 is tightly attached to the bottom surface of the collecting tray 411.
Referring to fig. 5-6, the pressure relief component 52 is provided on the seal reinforcing component 51, the pressure relief component 52 includes a pressure relief exhaust pipe 521, one end of the pressure relief exhaust pipe 521 is communicated with the inside of the seal ring 512, the other end of the pressure relief exhaust pipe 521 is provided with a long-shaped exhaust outlet 522, a pressure relief valve plate 523 is slidably provided in the pressure relief exhaust pipe 521, a reset piece 524 is provided in the pressure relief exhaust pipe 521, the reset piece 524 is a spring, one end of the reset piece 524 is fixedly connected with the pressure relief valve plate 523, and the other end of the reset piece 524 is fixedly connected with the pressure relief exhaust pipe 521.
Specifically, when the air pressure in the sealing ring 512 is greater, the thrust of the air pressure to the pressure relief valve plate 523 is greater than the elastic force of the restoring member 524, and the restoring member 524 is elongated, so that a gap is generated between the pressure relief valve plate 523 and the inner wall of the pressure relief exhaust pipe 521.
In the use, in-process exhaust air in the collection fan housing 425 gets into sealing washer 512 through communicating pipe 511 in the use, the atmospheric pressure in the sealing washer 512 increases, thereby make the sealing washer 512 that is located on last crystallization knockout drum 1 closely laminate with the collecting tray 411 top surface, make the sealing washer 512 that is located on lower crystallization knockout drum 2 closely laminate with collecting tray 411 bottom surface, realize improving the leakproofness between collecting tray 411 and last crystallization knockout drum 1 and lower crystallization knockout drum 2, thereby prevent the outflow of magnesium sulfate solution, when atmospheric pressure in the sealing washer 512 is great, the thrust of atmospheric pressure to the pressure release valve plate 523 is greater than the elastic force of return member 524 when return member 524, thereby make the clearance between pressure release valve plate 523 and the inner wall of pressure release exhaust pipe 521, and then make the air in the sealing washer 512 discharge outside by pressure release exhaust pipe 521 rethread air exit 522.
The rest of the structure is the same as that of embodiment 1.
Embodiment 3, referring to fig. 1-2 and fig. 6-9, is a third embodiment of the present invention, which differs from the second embodiment in that: the pouring unit 6 comprises a rotating part 61, the rotating part 61 is arranged on the separating part 41, the rotating part 61 comprises a rotating rod 611, one end of the rotating rod 611 is fixedly connected with a tray wall of the collecting tray 411, a bracket 612 is fixedly connected to the tray wall of the lower crystallization separating tank 2, a vertical shaft 613 is fixedly connected to the bracket 612, the top end of the vertical shaft 613 is rotatably connected with a rotating sleeve 614, the rotating rod 611 is rotatably connected to the rotating sleeve 614, a push handle 615 is arranged on the rotating sleeve 614, and the push handle 615 is fixedly connected to the sleeve wall of the rotating sleeve 614.
Specifically, by holding and pushing the push handle 615 to rotate the rotating sleeve 614 along the vertical shaft 613, the rotating sleeve 614 drives the rotating rod 611 to rotate the collecting tray 411, and at this time, the rotating rod 611 slides on the arc-shaped rod 621 through the sliding through hole 622, thereby moving the collecting tray 411 to the outside of the upper and lower crystallization separation tanks 1 and 2.
Referring to fig. 6 to 9, a turnover discharging part 62 is provided on a rotating part 61, the turnover discharging part 62 includes an arc rod 621, a sliding through hole 622 adapted to the arc rod 621 is provided on the rotating rod 611, the rotating rod 611 is slidably provided on the arc rod 621 through the sliding through hole 622, a bevel gear 623 is fixedly connected to one end of the rotating rod 611 far away from the collecting tray 411, a bevel gear tray 624 is fixedly sleeved on a vertical shaft 613, a bevel tooth groove portion 625 is provided on the bevel gear tray 624, and a receiving hopper 626 is provided on the tank wall of the collecting tank 414.
Specifically, the rotating rod 611 is separated from the arc rod 621, the bevel gear 623 is just meshed with the bevel gear groove 625 on the bevel gear plate 624 after separation, the bevel gear 623 drives the rotating rod 611 to turn over in the process of meshing movement of the bevel gear 623 and the bevel gear groove 625, the rotating rod 611 drives the collecting plate 411 to synchronously turn over, the collecting plate 411 is located above the receiving hopper 626 when turned over, and magnesium sulfate crystals located in the collecting plate 411 are poured into the receiving hopper 626 along with the turning over of the collecting plate 411.
In the use process, after crystallization filtering separation is finished, the push handle 615 is held and pushed to drive the rotating sleeve 614 to rotate along the vertical shaft 613, the rotating sleeve 614 drives the rotating rod 611 to enable the collecting tray 411 to rotate, at the moment, the rotating rod 611 slides on the arc-shaped rod 621 through the sliding through hole 622, so that the collecting tray 411 moves out of the upper crystallization separation tank 1 and the lower crystallization separation tank 2, after the collecting tray 411 moves out of the upper crystallization separation tank 1 and the lower crystallization separation tank 2, the rotating rod 611 is separated from the arc-shaped rod 621, the bevel gear 623 just meshes with the bevel groove 625 on the bevel gear plate 624 after separation, the bevel gear 623 drives the rotating rod 611 to turn over in the meshing motion process of the bevel gear 623 and the bevel groove 625, the rotating rod drives the collecting tray 411 to synchronously turn over, the collecting tray 411 is positioned above the receiving hopper 626 when turned over, and then magnesium sulfate crystals positioned in the collecting tray 411 are poured into the receiving hopper 626 along with the turning over of the collecting tray 411.
The rest of the structure is the same as that of embodiment 2.
Embodiment 4, referring to fig. 1-9, for a fourth embodiment of the present invention, there is provided: a magnesium sulfate crystallization separation process comprises the following steps,
s1: the heated magnesium sulfate solution is conveyed into the upper crystallization separation tank 1, is cooled through heat exchange of cooling liquid in a cooling liquid circulation pipe 416, is crystallized in a cooling mode, when the magnesium sulfate solution is cooled below a certain temperature, the solubility is reduced due to the fact that the saturation degree of the magnesium sulfate solution is reduced, the magnesium sulfate crystals are formed by crystallization, the magnesium sulfate crystals are remained in a collecting tray 411, the solution falls into a lower crystallization separation tank 2 after passing through a separation filter 412, the solution enters a collecting tank 414 again, is circularly conveyed by a conveying pump 417, the solution in the collecting tank 414 enters the upper crystallization separation tank 1 again through a liquid inlet pipe 418 and a liquid outlet pipe 419, the solution entering the upper crystallization separation tank 1 is crystallized through the cooling liquid circulation pipe 416, and the conveying pump 417 is turned off when conveying needs to be stopped;
s2: the negative pressure fan 421 works to generate negative pressure suction, so that the lower crystallization separation tank 2 is positioned below the collecting tray 411 to generate negative pressure, the magnesium sulfate solution can be accelerated to be filtered by the separating filter screen 412 through the negative pressure, air in the lower crystallization separation tank 2 is sequentially conveyed into the air collecting cover 425 through the air suction ring pipe 423, the air inlet pipe 422, the negative pressure fan 421 and the air outlet pipe 424, the wind wheel 434 is pushed by wind force to rotate, the stirring shaft 431 is driven to rotate by the wind wheel 434, the stirring shaft 431 drives the spiral blade 432 and the stirring rod 433 to rotate, downward thrust is generated by the rotation of the spiral blade 432, the magnesium sulfate solution can be further accelerated to be filtered, the stirring rod 433 is driven to rotate when the stirring shaft 431 rotates, particles in the magnesium sulfate solution are uniformly dispersed, the deposition and blockage of magnesium sulfate crystal particles on the separating filter screen 412 are reduced, and the situation that the magnesium sulfate crystals are blocked on the separating filter screen 412 to influence the filtration is reduced;
s3: air discharged from the air collecting cover 425 enters the sealing ring 512 through the communicating pipe 511, and the air pressure in the sealing ring 512 is increased, so that the sealing ring 512 positioned on the upper crystallization separation tank 1 is tightly attached to the top surface of the collecting disc 411, the sealing ring 512 positioned on the lower crystallization separation tank 2 is tightly attached to the bottom surface of the collecting disc 411, the tightness between the collecting disc 411 and the upper crystallization separation tank 1 and the lower crystallization separation tank 2 is improved, and the magnesium sulfate solution is prevented from flowing out through gaps between the collecting disc 411 and the upper crystallization separation tank 1 and the lower crystallization separation tank 2;
s4: when the air pressure in the sealing ring 512 is large, the thrust of the air pressure to the pressure relief valve plate 523 is larger than the elastic force of the reset piece 524, and the reset piece 524 is lengthened, so that a gap is generated between the pressure relief valve plate 523 and the inner wall of the pressure relief exhaust pipe 521, and then the air in the sealing ring 512 is exhausted to the outside through the exhaust outlet 522 by the pressure relief exhaust pipe 521;
s5: after the crystallization filtration separation is finished, the equipment is closed, then the push handle 615 is held and pushed to drive the rotating sleeve 614 to rotate along the vertical shaft 613, the rotating sleeve 614 drives the rotating rod 611 to rotate the collecting tray 411, at this time, the rotating rod 611 slides on the arc-shaped rod 621 through the sliding through hole 622, and thus the collecting tray 411 moves out of the upper crystallization separation tank 1 and the lower crystallization separation tank 2;
s6: when the collecting tray 411 is moved out of the upper crystallization separation tank 1 and the lower crystallization separation tank 2, the rotating rod 611 is separated from the arc-shaped rod 621, the bevel gear 623 is just meshed with the bevel gear groove 625 on the bevel gear plate 624 after separation, the bevel gear 623 is meshed with the bevel gear groove 625 in the process of movement, the bevel gear 623 drives the rotating rod 611 to turn over, the rotating rod 611 drives the collecting tray 411 to synchronously turn over, the collecting tray 411 is positioned above the receiving hopper 626 when turned over, then the magnesium sulfate crystals in the collecting tray 411 are poured into the receiving hopper 626 along with the turning over of the collecting tray 411, then the fallen magnesium sulfate crystals are collected at the outlet end of the receiving hopper 626, after the pouring is finished, the pushing handle 615 is pushed reversely to enable the collecting tray 411 to enter the upper crystallization separation tank 1 and the lower crystallization separation tank 2, filtered and separated solution is stored in the collecting tank 414, and the liquid can be discharged through the liquid discharge pipe 415 by opening a valve.
Claims (7)
1. The utility model provides a magnesium sulfate crystallization separation system, is including last crystallization knockout drum (1) and lower crystallization knockout drum (2) that are used for depositing magnesium sulfate solution, go up crystallization knockout drum (1) and set up directly over crystallization knockout drum (2) down, be provided with "C" shape jar body connecting rod (3) on the tank wall of last crystallization knockout drum (1) and lower crystallization knockout drum (2) jointly, its characterized in that: the device also comprises a separation unit (4), a sealing unit (5) and a pouring unit (6);
the separation unit (4) comprises a separation component (41) which is arranged on the upper crystallization separation tank (1) and the lower crystallization separation tank (2) and is used for separating magnesium sulfate solution;
the separating component (41) comprises a collecting tray (411), the collecting tray (411) is arranged between an upper crystallization separating tank (1) and a lower crystallization separating tank (2), a separating filter screen (412) is arranged on the collecting tray (411), an arc-shaped plate (413) is arranged on the outer tray wall of the collecting tray (411), the arc-shaped plate (413) is fixedly connected to the tank wall of the lower crystallization separating tank (2), the outlet end of the lower crystallization separating tank (2) is communicated with a collecting tank (414), a liquid discharge pipe (415) is arranged on the collecting tank (414), a valve is arranged on the liquid discharge pipe (415), a cooling liquid circulating pipe (416) is arranged in the upper crystallization separating tank (1), two ends of the cooling liquid circulating pipe (416) extend out of the upper crystallization separating tank (1), a conveying pump (417) is arranged on the tank wall of the collecting tank (414), the inlet end of the conveying pump (417) is communicated with a liquid inlet pipe (418), one end of the liquid inlet pipe (418) is communicated with the collecting tank (414), and one end of the conveying pump (417) is communicated with the liquid discharge pipe (419).
A negative pressure member (42) provided on the separation member (41) for accelerating the flow of the magnesium sulfate solution;
a stirring member (43) provided on the separation member (41) for accelerating the flow of the magnesium sulfate solution and preventing excessive accumulation of magnesium sulfate crystal particles on the separation member (41);
the sealing unit (5) is arranged on the upper crystallization separation tank (1) and the lower crystallization separation tank (2) and is used for improving the sealing performance between the separation unit (4) and the upper crystallization separation tank (1) and the lower crystallization separation tank (2);
the pouring unit (6) is arranged on the separation unit (4) and is used for taking out magnesium sulfate crystal particles from the separation unit (4);
the pouring unit (6) comprises a rotating part (61), the rotating part (61) is arranged on a separating part (41), the rotating part (61) comprises a rotating rod (611), one end of the rotating rod (611) is fixedly connected with a tray wall of a collecting tray (411), a bracket (612) is fixedly connected to the tray wall of the lower crystallization separating tank (2), a vertical shaft (613) is fixedly connected to the bracket (612), a rotating sleeve (614) is rotationally connected to the top end of the vertical shaft (613), the rotating rod (611) is rotationally connected to the rotating sleeve (614), and a pushing handle (615) is arranged on the rotating sleeve (614);
be provided with upset row material part (62) on rotating member (61), upset row material part (62) include arc pole (621), set up on rotating rod (611) with arc pole (621) looks adaptation slide through-hole (622), rotating rod (611) slide through-hole (622) set up on arc pole (621), keep away from on rotating rod (611) with the one end fixedly connected with bevel gear (623) of collecting tray (411), fixed cup joint on vertical axis (613) awl tooth dish (624), be provided with awl tooth groove portion (625) on awl tooth dish (624), be provided with on the tank wall of collecting tank (414) and connect hopper (626).
2. The magnesium sulfate crystallization separation system according to claim 1, wherein: the negative pressure component (42) comprises a negative pressure fan (421), the negative pressure fan (421) is arranged on the tank wall of the upper crystallization separation tank (1), an air inlet pipe (422) is communicated with the air inlet end of the negative pressure fan (421), an air suction ring pipe (423) is sleeved outside the outlet end of the lower crystallization separation tank (2), the air suction ring pipe (423) is communicated with the lower crystallization separation tank (2) through an air vent arranged on the air inlet pipe (422) and the air suction ring pipe (423), an air outlet pipe (424) is communicated with the air outlet end of the negative pressure fan (421), an air collecting cover (425) is arranged at the top of the upper crystallization separation tank (1), one end of the air outlet pipe (424) is communicated with the air collecting cover (425), and a guide hopper (426) is arranged inside the outlet end of the lower crystallization separation tank (2); the stirring part (43) comprises a stirring shaft (431), a spiral blade (432) is arranged on the stirring shaft (431), a stirring rod (433) is arranged on the stirring shaft (431), and the top end of the stirring shaft (431) penetrates through the wind collecting cover (425) and stretches into the inside of the wind collecting cover to be fixedly connected with a wind wheel (434).
3. The magnesium sulfate crystallization separation system according to claim 2, wherein: the sealing unit (5) comprises a sealing reinforcing part (51), the sealing reinforcing part (51) is arranged on the upper crystallization separation tank (1) and the lower crystallization separation tank (2), the sealing reinforcing part (51) comprises a communicating pipe (511), hollow sealing rings (512) are arranged on opposite sides of the upper crystallization separation tank (1) and the lower crystallization separation tank (2), one end of the communicating pipe (511) is communicated with the inside of the air collecting cover (425), and the other end of the communicating pipe (511) is communicated with the inside of the sealing rings (512) through the connecting pipe.
4. A magnesium sulfate crystallization separation system according to claim 3, wherein: the sealing reinforcing component (51) is provided with a pressure relief component (52), the pressure relief component (52) comprises a pressure relief exhaust pipe (521), one end of the pressure relief exhaust pipe (521) is communicated with the inside of the sealing ring (512), the other end of the pressure relief exhaust pipe (521) is provided with a long-strip exhaust outlet (522), a pressure relief valve plate (523) is arranged in the pressure relief exhaust pipe (521) in a sliding mode, and a reset piece (524) is arranged in the pressure relief exhaust pipe (521).
5. A magnesium sulfate crystallization separation process, which adopts the magnesium sulfate crystallization separation system as claimed in claim 4, and is characterized in that: the method comprises the following steps:
conveying the heated magnesium sulfate solution into an upper crystallization separation tank (1), cooling the heated magnesium sulfate solution through heat exchange of cooling liquid in a cooling liquid circulation pipe (416), crystallizing the magnesium sulfate solution in a cooling mode, enabling the magnesium sulfate crystals to stay in a collecting tray (411), enabling the solution to fall into a lower crystallization separation tank (2) after passing through a separation filter screen (412), enabling the solution to enter into a collecting tank (414), and then circularly conveying the solution by a conveying pump (417), and crystallizing the solution entering into the upper crystallization separation tank (1) through the cooling liquid circulation pipe (416);
the negative pressure fan (421) works to generate negative pressure suction, so that the magnesium sulfate solution can be quickened to be filtered by the separation filter screen (412) through negative pressure, the wind wheel (434) is pushed by wind power to rotate, a thrust force is generated through the rotation of the spiral blade (432), and the stirring rod (433) is used for stirring, so that particles in the magnesium sulfate solution are uniformly dispersed;
air exhausted from the air collecting cover (425) enters the sealing ring (512) through the communicating pipe (511), the air pressure in the sealing ring (512) is increased, and the tightness between the collecting disc (411) and the upper crystallization separation tank (1) and the lower crystallization separation tank (2) is improved;
when the air pressure in the sealing ring (512) is large, the air in the sealing ring (512) is discharged to the outside through the air outlet (522) by the pressure relief air outlet pipe (521).
6. The magnesium sulfate crystallization separation process according to claim 5, wherein: the rotating sleeve (614) is driven to rotate along the vertical shaft (613) by holding and pushing the push handle (615), the rotating sleeve (614) drives the rotating rod (611) to rotate the collecting tray (411), and at the moment, the rotating rod (611) slides on the arc-shaped rod (621) through the sliding through hole (622), so that the collecting tray (411) moves out of the upper crystallization separating tank (1) and the lower crystallization separating tank (2).
7. The magnesium sulfate crystallization separation process according to claim 6, wherein: when the collecting tray (411) is moved out of the upper crystallization separating tank (1) and the lower crystallization separating tank (2), the rotating rod (611) is separated from the arc-shaped rod (621), and in the process of meshing movement of the bevel gear (623) and the bevel gear groove part (625), the rotating rod (611) drives the collecting tray (411) to overturn, and magnesium sulfate crystals in the collecting tray (411) are poured into the receiving hopper (626).
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Address after: 2156 Zhuyou Street, Laizhou City, Yantai City, Shandong Province, 261400 Patentee after: Shandong Laiyu Chemical Co.,Ltd. Country or region after: China Address before: 2156 Zhuyou Street, Laizhou City, Yantai City, Shandong Province, 261400 Patentee before: LAIZHOU CITY LAIYU CHEMICAL Co.,Ltd. Country or region before: China |