CN116116529B - Limestone pretreatment system for wet desulfurization of aluminum electrolysis - Google Patents
Limestone pretreatment system for wet desulfurization of aluminum electrolysis Download PDFInfo
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- CN116116529B CN116116529B CN202211525219.4A CN202211525219A CN116116529B CN 116116529 B CN116116529 B CN 116116529B CN 202211525219 A CN202211525219 A CN 202211525219A CN 116116529 B CN116116529 B CN 116116529B
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- rotating cylinder
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- 235000019738 Limestone Nutrition 0.000 title claims abstract description 114
- 239000006028 limestone Substances 0.000 title claims abstract description 114
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 18
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 238000007599 discharging Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000003139 buffering effect Effects 0.000 claims description 10
- 238000007790 scraping Methods 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Electrolytic Production Of Metals (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of desulfurization material treatment, in particular to a limestone pretreatment system for aluminum electrolysis wet desulfurization, which comprises a rolling mechanism for rolling limestone, wherein the lower end of the rolling mechanism is provided with a conveying mechanism for conveying limestone slurry. The existing limestone slurry preparation method is simple and convenient to operate, a large amount of limestone slurry can be prepared at one time, the preparation efficiency is high, but the existing method cannot crush or remove limestone with larger particles, the prepared limestone slurry has inconsistent density, and the quality of the limestone slurry is reduced. The rolling unit adopted by the invention can carry out preliminary rolling treatment on the limestone slurry, pulverize the limestone with larger particles, facilitate the mixing of the limestone and water, improve the mixing efficiency of the limestone and ensure the consistency of the density in the limestone slurry.
Description
Technical Field
The invention relates to the technical field of desulfurization material treatment, in particular to a limestone pretreatment system for aluminum electrolysis wet desulfurization.
Background
With the great importance of society on environmental protection, a large amount of flue gas generated by electrolytic aluminum needs to be filtered so as to reach the standard capable of being discharged, thereby avoiding the influence on the environment.
The existing flue gas desulfurization is mostly carried out by adopting a wet desulfurization process, and can be divided into a calcium method, an alkali method and the like according to different absorption agents, so that the cost problem is considered, enterprises usually adopt the calcium method for desulfurization, the limestone slurry is required to be prepared in the calcium method desulfurization process, the existing preparation method is to pour limestone and water into a stirring tank for stirring treatment, and the limestone and the water are mixed to form limestone slurry.
The limestone slurry preparation method is simple and convenient to operate, a large amount of limestone slurry can be prepared at one time, the preparation efficiency is high, but the method cannot crush or remove limestone with larger particles, the prepared limestone slurry has inconsistent density, and impurities mixed in the limestone cannot be removed, so that the quality of the limestone slurry is reduced.
Disclosure of Invention
The technical problem to be solved is that the limestone pretreatment system for aluminum electrolysis wet desulfurization can solve the problems existing in the pretreatment of the limestone.
The limestone pretreatment system for aluminum electrolysis wet desulfurization comprises a rolling mechanism for rolling limestone, wherein a conveying mechanism for conveying limestone slurry is arranged at the lower end of the rolling mechanism.
The utility model provides a feeding frame is installed to rolling mechanism including rolling the frame, rolling frame upper end is close to right side department, rolls frame right frame wall and installs the unit of intaking, rolls and installs the sliding plate that is located feeding frame below in the joint slope between the two interior terminal surfaces around the frame, and sliding plate upper left side is provided with the baffle that separates with rolling frame interior terminal surface fixed connection, and rolling unit is installed to sliding plate left end, rolls the unit and rolls the frame and be connected, rolls frame lower extreme and is close to right side department and runs through and install the ejection of compact frame.
As a preferable technical scheme of the invention, the rolling unit comprises an arc-shaped frame arranged at the left end of the sliding plate, a plurality of semicircular openings which are uniformly distributed are arranged on the inner cambered surface of the arc-shaped frame, a rotating cylinder is arranged above the arc-shaped frame, the rotating cylinder penetrates through and is rotationally connected with the front frame wall and the rear frame wall of the rolling frame, a plurality of connecting through holes which are uniformly distributed in the circumferential direction are formed in the annular wall of the rotating cylinder, a plurality of scraping plates which are uniformly distributed in the circumferential direction are arranged on the outer surface of the annular wall of the rotating cylinder, a pushing column is arranged in the rotating cylinder, the lower end of the pushing column is fixedly connected with the rolling frame, a plurality of auxiliary plates which are uniformly distributed in the circumferential direction are arranged on the inner surface of the annular wall of the rotating cylinder, a rolling branched chain is connected in the connecting through holes, a connecting spring is arranged between the rolling branched chain and the auxiliary plates, a buffer branched chain is arranged on the outer cambered surface of the arc-shaped frame, the front end of the rotating cylinder is fixedly connected with an output shaft of a driving motor, and the driving motor is fixedly connected with the rolling frame.
As a preferable technical scheme of the invention, the conveying mechanism comprises a conveying pipe which is arranged at the lower end of the rolling frame through a mounting plate, the right side wall of the conveying pipe penetrates through and is rotationally connected with a threaded conveying rod, the right end of the threaded conveying rod is fixedly connected with a driving motor which is arranged at the right end of the conveying pipe, the upper side of the circular pipe wall of the conveying pipe is provided with a feeding hole which is fixedly connected with a discharging frame, the lower side of the circular pipe wall of the conveying pipe is provided with a discharging hole, a filter plate is arranged in the discharging hole, a discharging frame which is arranged on the conveying pipe is arranged below the filter plate, the left end of the conveying pipe is provided with a discharging pipe, and the lower end of the discharging pipe is provided with a collecting net.
As a preferable technical scheme of the invention, the rolling branched chain comprises a rotary plate rotatably connected in the connecting through hole, a connecting groove is formed in one end of the rotary plate, far away from the inside of the rotary cylinder, a filter screen plate is slidably connected in the connecting groove, a reset spring is arranged between the filter screen plate and the connecting groove, a plurality of semicircular grooves are formed in one end, far away from the rotary plate, of the filter screen plate, a connecting column is arranged at one end, far away from the rotary plate, of the filter screen plate, a plurality of rolling beads positioned in the semicircular grooves are rotatably connected on the connecting column, and a protective rubber film is arranged between the rotary plate and the wall of the connecting through hole.
As a preferable technical scheme of the invention, the water inlet unit comprises a water collecting frame arranged on the upper side of the right frame wall of the rolling frame, a plurality of evenly distributed water outlet pipes are arranged at the left end of the water collecting frame, and a water inlet pipe is arranged at the right end of the water collecting frame.
As a preferable technical scheme of the invention, the buffer branched chain comprises a buffer support plate arranged on the outer cambered surface of the arc-shaped frame, a plurality of buffer rods which are uniformly distributed from left to right are arranged at the lower end of the buffer support plate, the lower ends of the buffer rods are contacted with the inner end of the rolling frame, a plurality of buffer rods at two adjacent sides are distributed in a staggered manner, and the buffer rods are in a triangular structure.
As a preferable technical scheme of the invention, one end of the scraping plate, which is far away from the rotating cylinder, is integrally formed with a plurality of semicircular plates which are uniformly distributed, and the semicircular plates are in sliding fit with the semicircular openings.
As a preferable technical scheme of the invention, one end of the rotating plate, which is close to the center of the rotating cylinder, is provided with an inclined plane which is in sliding fit with the pushing column.
As a preferable technical scheme of the invention, the middle part of the filter screen plate is provided with a rectangular opening, and a leak hole net is arranged in the rectangular opening.
As a preferable technical scheme of the invention, a splash guard is arranged at the inner end surface of the left side wall of the rolling frame.
The limestone pretreatment system for aluminum electrolysis wet desulfurization has the beneficial effects that 1. The rolling unit adopted by the limestone pretreatment system for aluminum electrolysis wet desulfurization can carry out preliminary rolling treatment on limestone slurry, so that limestone with larger particles is crushed, the mixing of limestone and water is facilitated, the limestone mixing efficiency is improved, and the consistency of the density in the limestone slurry is ensured.
2. The rolling unit adopted by the limestone pretreatment system for aluminum electrolysis wet desulfurization provided by the invention can be used for primarily mixing limestone with water to form slurry and removing impurities contained in the slurry, so that the rapid forming of limestone slurry is facilitated, and the quality of the limestone slurry is improved.
3. The conveying mechanism adopted by the limestone pretreatment system for aluminum electrolysis wet desulfurization can remove sundries and limestone with larger particles mixed in limestone slurry, and can recycle the limestone, so that the waste of the limestone is avoided.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of a first view of the present invention.
Fig. 2 is a schematic view of a second perspective structure of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a left side view of the present invention.
Figure 5 is a cross-sectional view of A-A of figure 4 in accordance with the present invention.
Fig. 6 is an enlarged view of the invention at N in fig. 5.
Fig. 7 is a partial perspective view of the roll stand and the roll stand unit of the present invention.
FIG. 8 is a schematic perspective view of a buffer arm according to the present invention.
In the figure: 1. a rolling mechanism; 11. rolling a frame; 111. a splash shield; 12. a feed frame; 13. a water inlet unit; 131. a water collecting frame; 132. a water outlet pipe; 133. a water inlet pipe; 14. a slide plate; 15. a rolling unit; 151. an arc frame; 152. a rotating cylinder; 153. a connecting through hole; 154. a scraping plate; 155. pushing the column; 156. an auxiliary plate; 157. a connecting spring; 158. rolling the branched chain; 1581. a rotating plate; 1582. a screen plate; 1583. a connecting column; 1584. rolling the beads; 1585. a return spring; 1586. a protective rubber film; 159. buffer branched chain; 1591. a buffer support plate; 1592. a buffer rod; 150. a driving motor; 16. a discharging frame; 17. a baffle plate; 2. a conveying mechanism; 21. a transmission tube; 22. a threaded transfer rod; 23. a drive motor; 24. a filter plate; 25. a discharging frame; 26. a discharge pipe; 27. and (5) collecting the net.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Referring to fig. 1-4, the invention adopts the following technical scheme that the limestone pretreatment system for wet desulfurization by aluminum electrolysis comprises a rolling mechanism 1 for rolling limestone, and a conveying mechanism 2 for conveying limestone slurry is arranged at the lower end of the rolling mechanism 1.
Referring to fig. 1 and 5, the rolling mechanism 1 comprises a rolling frame 11, a feeding frame 12 is installed at the upper end of the rolling frame 11 near the right side, a water inlet unit 13 is installed on the right frame wall of the rolling frame 11, a sliding plate 14 positioned below the feeding frame 12 is installed between the front end and the rear end of the rolling frame 11 in a common inclined mode, a baffle 17 fixedly connected with the inner end surface of the rolling frame 11 is arranged at the upper left side of the sliding plate 14, a rolling unit 15 is installed at the left end of the sliding plate 14, the rolling unit 15 is connected with the rolling frame 11, a discharging frame 16 is installed at the lower end of the rolling frame 11 near the right side in a penetrating mode, and a splash guard 111 is installed at the inner end surface of the left side wall of the rolling frame 11.
Referring to fig. 1 and 5, in specific operation, the rolling frame 11 is clamped above the existing stirring pool through the existing clamping equipment, the water inlet unit 13 is manually connected with an external water pump, the rolling unit 15 is restarted, then the existing limestone collecting bin continuously discharges limestone, the discharged limestone enters the sliding plate 14 in the rolling frame 11 through the feeding frame 12, the water pump is started, the water pump contacts with the limestone through the water inlet unit 13 and mixes the limestone into slurry, meanwhile, the limestone is driven to move towards the rolling unit 15, the rolling unit 15 rolls and breaks the limestone with larger particles, the mixing efficiency of the limestone and water is improved, the rolling unit 15 discharges the rolled limestone slurry into the rolling frame 11 and then falls into the conveying mechanism 2 through the discharging frame 16, the baffle 17 plays a role of blocking the limestone, the phenomenon of dispersing the limestone is avoided, and the splash-proof plate 111 plays a role of splash-proof on the limestone slurry.
Referring to fig. 5, the water inlet unit 13 includes a water collecting frame 131 mounted on the upper side of the right frame wall of the rolling frame 11, a plurality of water outlet pipes 132 uniformly distributed are mounted at the left end of the water collecting frame 131, and a water inlet pipe 133 is mounted at the right end of the water collecting frame 131.
Referring to fig. 5, in a specific operation, an existing water pump is manually connected with a water inlet pipe 133, the water pump is started, water is injected into a water collecting frame 131 through the water inlet pipe 133, and then discharged through a plurality of water outlet pipes 132, and the discharged water is mixed with limestone to form slurry.
Referring to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, the rolling unit 15 includes an arc frame 151 installed at the left end of the sliding plate 14, a plurality of semicircular openings uniformly distributed are provided on the inner arc surface of the arc frame 151, a rotating cylinder 152 is provided above the arc frame 151, the rotating cylinder 152 penetrates through and is rotationally connected with the front and rear frame walls of the rolling frame 11, a plurality of connecting through holes 153 uniformly distributed in the circumferential direction are provided on the circumferential wall of the rotating cylinder 152, a plurality of scraping plates 154 uniformly distributed in the circumferential direction are installed on the outer surface of the circumferential wall of the rotating cylinder 152, a plurality of semicircular plates uniformly distributed are integrally formed at one end of the scraping plates 154 far away from the rotating cylinder 152, the semicircular plates are in sliding fit with the semicircular openings, a pushing column 155 is provided in the rotating cylinder 152, the lower end of the pushing column 155 is fixedly connected with the rolling frame 11, a plurality of auxiliary plates 156 uniformly distributed in the circumferential direction are installed on the inner surface of the circumferential wall of the rotating cylinder 152, rolling branches 158 are connected with auxiliary plates 156 in the connecting through holes 153, a connecting spring 157 is installed between the rolling branches 158 and the auxiliary plates 156, a buffer branched chain 159 is installed on the outer arc surface of the arc frame 151, a motor 159 is fixedly connected with the front end of the rotating cylinder 152, and the driving motor 150 is fixedly connected with the rolling frame 11.
Referring to fig. 6 and 7, the rolling branched chain 158 includes a rotating plate 1581 rotatably connected in the connecting through hole 153, a connecting groove is formed at one end of the rotating plate 1581, which is far away from the inside of the rotating cylinder 152, an inclined surface is formed at one end of the rotating plate 1581, which is close to the center of the rotating cylinder 152, the inclined surface is slidably matched with the pushing column 155, a filter screen plate 1582 is slidably connected in the connecting groove, a return spring 1585 is installed between the filter screen plate 1582 and the connecting groove, a plurality of semicircular grooves are formed at one end of the filter screen plate 1582, which is far away from the rotating plate 1581, a rectangular opening is formed in the middle of the filter screen plate 1582, a leak hole net is installed inside the rectangular opening, a plurality of rolling beads 1584 located in the semicircular grooves are rotatably connected to the connecting column 1583, and a protective rubber film 1586 is installed between the rotating plate 1581 and the wall of the connecting through hole 153.
Referring to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, specifically during operation, the driving motor 150 is started, driving motor 150 drives the striking off plate 154 and the rotor plate 1581 through the rotary cylinder 152 and rotates, lime stone and water fall to the arc frame 151 along with the slide plate 14, two adjacent striking off plates 154 and the arc frame 151 cooperate to form a closed cavity, two striking off plates 154 drive lime stone and water in the cavity and remove, lime stone and water mix into thick liquid, simultaneously the rotary cylinder 152 drives the inclined plane on the rotor plate 1581 and the contact of the push column 155, the push column 155 carries out the push to the rotary plate 1581, the roller 1581 atress drives the rolling beads 1584 of filter screen plate 1582 tip and rolls in the semicircle opening and rolls the great lime stone of granule, the lime stone is convenient for the better mixture of lime stone and water, when the filter screen plate 1582 rotates, the weeping screen mesh on the filter screen plate 1582 is convenient for the flow of lime stone, along with the rotation of 1581 and the rotation of rotary cylinder 152, lime stone and push column 155 separation, connecting spring 157 drives the rotor plate 1581 to reset, the inclined plane on the rotor plate 1581 drives the rotor plate and drives the inclined plane on the rotor plate 1581 to contact with push column 155, the roller 1584 contacts, the roller 1584 returns to the lime stone, the lime stone is carried out the lime stone is separated from the arc frame 151, and the lime stone is rolled into the arc frame is carried out to the arc frame 151, and the lime stone is separated from the arc frame is rolled into the lime stone after the lime stone is separated into the lime stone, and the lime stone is separated into the lime-is separated.
Referring to fig. 5 and 8, the buffer branched chain 159 includes a buffer support plate 1591 installed on the outer arc surface of the arc-shaped frame 151, a plurality of buffer rods 1592 uniformly distributed from front to back are installed at the lower end of the buffer support plate 1591 from left to right, the lower end of the buffer rod 1592 contacts with the inner end of the rolling frame 11, the plurality of buffer rods 1592 at two adjacent sides are distributed in a staggered manner, and the buffer rods 1592 are in a triangular structure.
Referring to fig. 8, in particular operation, after the limestone slurry flows to the buffer rods 1592, the buffer rods 1592 distributed in a staggered manner play a role in buffering the limestone slurry, and the limestone slurry collides with the buffer rods 1592 to facilitate further mixing of the limestone and water, so that the slurry forming effect is improved.
Referring to fig. 5, the conveying mechanism 2 includes a conveying pipe 21 mounted at the lower end of the rolling frame 11 through a mounting plate, a threaded conveying rod 22 is penetrated and rotatably connected to the right side wall of the conveying pipe 21, a driving motor 23 fixedly connected to the right end of the threaded conveying rod 22 is mounted at the right end of the conveying pipe 21, a feeding hole fixedly connected to the discharging frame 16 is formed in the upper side of the circular pipe wall of the conveying pipe 21, a discharging hole is formed in the lower side of the circular pipe wall of the conveying pipe 21, a filter plate 24 is mounted in the discharging hole, a discharging frame 25 mounted on the conveying pipe 21 is arranged below the filter plate 24, a discharging pipe 26 is mounted at the left end of the conveying pipe 21, and a collecting net 27 is mounted at the lower end of the discharging pipe 26.
Referring to fig. 5, in specific operation, the transmission motor 23 is started, the transmission motor 23 drives the screw transmission rod 22 to rotate, the limestone slurry falls into the transmission pipe 21 through the discharging frame 16, the rotating screw transmission rod 22 moves the limestone slurry towards the discharge port, the limestone slurry falls into the stirring pool through the filter plate 24 in the discharge port to be further stirred into slurry, the filter plate 24 separates the limestone with larger particles, the screw transmission rod 22 continues to drive the limestone with larger particles or other impurities to move to the discharge pipe 26, the limestone with larger particles or other impurities falls into the collecting net 27 through the discharge pipe 26, and the larger limestone or other impurities in the collecting net 27 are cleaned and recovered manually, so that the pretreatment is completed.
The pretreatment comprises the following steps: s1: the grinding frame 11 is clamped above the existing stirring pool through the existing clamping equipment, the water inlet unit 13 is manually connected with an external water pump, the grinding unit 15 is restarted, then the limestone is continuously discharged from the existing limestone collecting bin, and discharged limestone enters the sliding plate 14 in the grinding frame 11 through the feeding frame 12.
S2: starting a water pump, enabling the water pump to contact with the limestone through the water inlet unit 13 and mix the water pump with the limestone to form slurry, driving the limestone to move towards the rolling unit 15, and rolling and crushing the limestone with larger particles by the rolling unit 15, so that the limestone and water can be conveniently mixed.
S3: limestone slurry falls into the rolling frame 11, flows through the buffering branched chain 159 and then falls into the transmission pipe 21 through the discharging frame 16, the limestone slurry moves towards the discharge port through the rotating screw transmission rod 22, the limestone slurry falls into the stirring pool through the filter plate 24 in the discharge port to be further stirred into slurry, the filter plate 24 separates the limestone with larger particles, the screw transmission rod 22 continuously drives the limestone with larger particles or other sundries to move to the discharge pipe 26, and the limestone with larger particles or other sundries fall into the collecting net 27 through the discharge pipe 26.
S4: the larger limestone or other sundries in the collecting net 27 are manually cleaned and recovered, and the pretreatment is completed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A limestone pretreatment system for wet desulfurization of aluminum electrolysis is characterized in that: comprises a rolling mechanism (1) for rolling limestone, wherein the lower end of the rolling mechanism (1) is provided with a conveying mechanism (2) for conveying limestone slurry; wherein:
the rolling mechanism (1) comprises a feeding frame (12) arranged at the position, close to the right, of the upper end of a rolling frame (11), a water inlet unit (13) is arranged on the right frame wall of the rolling frame (11), a sliding plate (14) positioned below the feeding frame (12) is obliquely arranged between the front end and the rear end of the rolling frame (11), a baffle plate (17) fixedly connected with the inner end surface of the rolling frame (11) is arranged at the upper left of the sliding plate (14), a rolling unit (15) is arranged at the left end of the sliding plate (14), the rolling unit (15) is connected with the rolling frame (11), and a discharging frame (16) is arranged at the position, close to the right, of the lower end of the rolling frame (11) in a penetrating manner;
the rolling unit (15) comprises an arc-shaped frame (151) arranged at the left end of the sliding plate (14), a plurality of semicircular openings which are uniformly distributed are formed in the inner cambered surface of the arc-shaped frame (151), a rotating cylinder (152) is arranged above the arc-shaped frame (151), the front and rear frame walls of the rotating cylinder (152) and the rolling frame (11) are penetrated and rotationally connected, a plurality of connecting through holes (153) which are uniformly distributed in the circumferential direction are formed in the annular wall of the rotating cylinder (152), a plurality of scraping plates (154) which are uniformly distributed in the circumferential direction are arranged on the outer surface of the annular wall of the rotating cylinder (152), a pushing column (155) is arranged in the rotating cylinder (152), the lower end of the pushing column (155) is fixedly connected with the rolling frame (11), a plurality of auxiliary plates (156) which are uniformly distributed in the circumferential direction are arranged on the inner surface of the annular wall of the rotating cylinder (152), a rolling branched chain (158) is arranged in the connecting through holes (153), a connecting spring (157) is arranged between the rolling branched chain (158) and the auxiliary plates (156), a buffering branched chain (159) is arranged in the outer cambered surface of the arc-shaped frame (151), the front end of the rotating cylinder (152) is fixedly connected with an output shaft (150), and the driving frame (150) is fixedly connected with the rolling frame (11); one end of the rotating plate (1581) close to the center of the rotating cylinder (152) is provided with an inclined plane which is in sliding fit with the pushing column (155);
the rolling branched chain (158) comprises a rotating plate (1581) which is rotatably connected in the connecting through hole (153), a connecting groove is formed in one end, away from the inside of the rotating cylinder (152), of the rotating plate (1581), a filter screen plate (1582) is slidably connected in the connecting groove, a reset spring (1585) is arranged between the filter screen plate (1582) and the connecting groove, a plurality of semicircular grooves are formed in one end, away from the rotating plate (1581), of the filter screen plate (1582), connecting columns (1583) are arranged at one end, away from the rotating plate (1581), of the filter screen plate (1582), a plurality of rolling beads (1584) which are located in the semicircular grooves are rotatably connected on the connecting columns (1583), and protective rubber films (1586) are arranged between the rotating plate (1581) and the wall of the connecting through hole (153);
the buffering branched chain (159) comprises a buffering support plate (1591) arranged on the outer cambered surface of the arc-shaped frame (151), a plurality of buffering rods (1592) which are evenly distributed from left to right are arranged at the lower end of the buffering support plate (1591), the lower end of each buffering rod (1592) is in contact with the inner end of the rolling frame (11), the plurality of buffering rods (1592) at two adjacent sides are distributed in a staggered mode, and each buffering rod (1592) is of a triangular structure.
2. The limestone pretreatment system for wet desulfurization by aluminum electrolysis according to claim 1, wherein: the conveying mechanism (2) comprises a transmission pipe (21) which is installed at the lower end of the rolling frame (11) through an installation plate, the right side wall of the transmission pipe (21) penetrates through and is rotationally connected with a threaded transmission rod (22), the right end of the threaded transmission rod (22) is fixedly connected with a transmission motor (23) which is installed at the right end of the transmission pipe (21), a feeding hole which is fixedly connected with a discharging frame (16) is formed in the upper side of a circular pipe wall of the transmission pipe (21), a discharging hole is formed in the lower side of the circular pipe wall of the transmission pipe (21), a filter plate (24) is installed in the discharging hole, a discharging frame (25) which is installed on the transmission pipe (21) is arranged below the filter plate (24), a discharging pipe (26) is installed at the left end of the transmission pipe (21), and a collecting net (27) is installed at the lower end of the discharging pipe (26).
3. The limestone pretreatment system for wet desulfurization by aluminum electrolysis according to claim 1, wherein: the water inlet unit (13) comprises a water collecting frame (131) arranged on the upper side of the right frame wall of the rolling frame (11), a plurality of evenly distributed water outlet pipes (132) are arranged at the left end of the water collecting frame (131), and a water inlet pipe (133) is arranged at the right end of the water collecting frame (131).
4. The limestone pretreatment system for wet desulfurization by aluminum electrolysis according to claim 1, wherein: one end of the scraping plate (154) far away from the rotating cylinder (152) is integrally formed with a plurality of semicircular plates which are uniformly distributed, and the semicircular plates are in sliding fit with the semicircular openings.
5. The limestone pretreatment system for wet desulfurization by aluminum electrolysis according to claim 1, wherein: the middle part of filter screen board (1582) is provided with the rectangle opening, and rectangle opening internally mounted has the weeping net.
6. The limestone pretreatment system for wet desulfurization by aluminum electrolysis according to claim 1, wherein: and a splash-proof plate (111) is arranged on the inner end surface of the left side wall of the rolling frame (11).
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