CN113387192B - Particle salt screening and conveying system - Google Patents
Particle salt screening and conveying system Download PDFInfo
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- CN113387192B CN113387192B CN202110604946.9A CN202110604946A CN113387192B CN 113387192 B CN113387192 B CN 113387192B CN 202110604946 A CN202110604946 A CN 202110604946A CN 113387192 B CN113387192 B CN 113387192B
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- salt
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- 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
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/008—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations for bulk material
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- 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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- 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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/12—Sieving bulk materials during loading or unloading
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- 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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
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- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The granular salt screening and conveying system is used for receiving and further processing wet salt obtained from the evaporative crystallization system and comprises a drying bed, a conveying belt, a distributing hopper, a distributing screw conveyor, a plurality of vibrating screening machines, a buffer bin, a cooling screw conveyor, a bucket elevator, a distributing belt and a bin which are connected in sequence; the salt grain screening machine screens salt grains into salt grains with different grains and divides the salt grains into buffering bins, the buffering bin is connected with the cooling screw conveyer, the discharge port of the cooling screw conveyer is communicated with the feed port of the bucket elevator, and the salt grains lifted by the bucket elevator are conveyed to the distributing belt and divided into bins.
Description
Technical Field
The invention relates to the technical field of salt production, in particular to a granular salt screening and conveying system.
Background
The existing well salt industry generally adopts underground brine production, and then adopts an evaporation method to prepare industrial salt and common salt by taking brine as a raw material. In order to improve the yield, the strength of an evaporation system of the evaporation crystallization is high, the total size of raw salt particles of the evaporation crystallization is smaller, and the proportion of powder salt is larger. Then the secondary crushing is carried out through pneumatic conveying, and the content of the powder salt in the crude salt is further enlarged. This causes a lot of dust in the production environment (workers complain of a bad production environment). In the prior art, powder salt is generally collected by a dust removal system and then directly dissolved into a tank, so that energy waste is large. Secondly, the salt temperature at the outlet of the drying bed is about 72 ℃, no cooling process equipment and measures are needed in the later working procedure, and natural heat dissipation and cooling are only carried out by a belt conveyor and a storage bin; the temperature of the crude salt in the roof silo is 65 ℃ on average and up to 70 ℃ in the high temperature. The high salt temperature and the high salt content of the powder easily cause the quality problems of condensation agglomeration, unqualified iodine and loose content, loose sealing, salt leakage, broken package and the like.
Disclosure of Invention
The invention aims to provide a granular salt screening production system which is used for solving the problems in the background art.
In order to solve the technical problems, the invention adopts the following technical scheme: the granular salt screening and conveying system is used for receiving and further processing wet salt obtained from the evaporative crystallization system and comprises a drying bed, a conveying belt, a distributing hopper, a distributing screw conveyor, a plurality of vibrating screening machines, a buffer bin, a cooling screw conveyor, a bucket elevator, a distributing belt and a bin which are connected in sequence; the drying bed is used for drying wet salt obtained by centrifugation of a centrifuge in the previous procedure, the wet salt is conveyed into a distributing hopper through a belt conveyor after being dried, the distributing hopper is divided into two independent areas by a baffle plate in the distributing hopper, and salt particles are directly conveyed into a first feeding port of a distributing screw conveyor and a second overflow port for overflow of the salt particles respectively; the end of the material distributing screw conveyer is provided with a first overflow port, a plurality of discharge ports of the material distributing screw conveyer are respectively communicated with the vibration screening machine, salt particles are screened into salt particles with different particles by the vibration screening machine and are subpackaged into the buffer bins, the outlet of the buffer bins is connected with the cooling screw conveyer, the discharge ports of the cooling screw conveyer are communicated with a feed port of the bucket elevator, and the salt particles lifted by the bucket elevator are conveyed to the material distributing belt and subpackaged into various bins.
Further, the surge bin comprises a bin body and a discharge opening designed at the bottom of the bin body, the discharge opening is connected with a discharge pipeline through a star discharger, the top of the bin body is sealed with a top cover, a material main inlet is formed in the top cover, a vent pipe used for communicating the inside of the bin body with the outside atmosphere is further arranged on the top cover, and the top end of the vent pipe is bent downwards and provided with a dustproof filter screen.
Still further, one side of dividing the material conveyer belt is provided with a plurality of follow divide the material conveyer belt to scrape to get to go into the scraping mechanism of feed bin, scrape and get the mechanism including for dividing the scraper blade body of conveyer belt transmission direction slope, drive the scraper blade body perpendicularly with the drive assembly of conveyer belt plane motion, and be used for with the scraper blade body sticis divide the elastic component on conveyer belt surface.
Specifically, the material distributing conveyer belt comprises at least one group of first conveyer belt and second conveyer belt which are mutually connected in series, the front end of the first conveyer belt is provided with a material feeding switching mechanism and a first bucket elevator, a second bucket elevator is arranged at the joint of the first conveyer belt and the second conveyer belt, a third bucket elevator is arranged in the middle section of the second conveyer belt, and a fourth bucket elevator is arranged at the tail end of the second conveyer belt; the conveying switching mechanism comprises a bracket and a fixed discharging plate, one end of the fixed discharging plate, which is close to the first conveying belt, is connected with an extension assembly and is used for adjusting the feeding length of the conveying switching mechanism, and the bracket is connected with an adjusting assembly and is used for adjusting the inclination of the fixed discharging plate; the extension subassembly includes movable flitch, movable flitch slides and sets up at fixed flitch inner chamber, movable flitch is close to fixed flitch one end and is connected with the stopper that is arranged in preventing movable flitch from sliding out in the fixed flitch, fixed flitch one end top is kept away from to movable flitch is connected with two sets of fixed blocks, two sets of cylinders are installed near movable flitch one end top to fixed flitch, the piston rod is connected to the cylinder output, the fixed block is connected to cylinder one end is kept away from to the piston rod.
Furthermore, the salt particles overflowed from the first overflow port and the second overflow port are directly sent to an industrial salt processing procedure through a belt conveyor.
The invention has the beneficial effects that: the system greatly reduces the proportion of powder and salt by adding processes such as screening and cooling, reduces the salt temperature entering a storage bin, creates a more suitable working environment for bagging and subsequent processes, and greatly meets the continuous operation requirement of the evaporation crystallization process if part of components still fail in the process.
Drawings
FIG. 1 is a schematic diagram of a system for producing a salt of a moisture-dispersing agent according to an embodiment of the present invention;
FIG. 2 is a schematic view of a feed hopper and feed screw conveyor of the present invention;
FIG. 3 is a schematic view of a surge bin and star discharger of the present invention;
FIG. 4 is a schematic distribution diagram of a distribution conveyor belt and a silo of the present invention;
FIG. 5 is a schematic view of a feed switching mechanism of the present invention;
FIG. 6 is a schematic view of a scraper feeding device of the distributing conveyor belt.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
It should be noted in advance that, in the present invention, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Example 1
The granular salt screening and conveying system shown in the figure 1 directly receives and further processes wet salt obtained from the evaporative crystallization system, and then enters a bin through a drying bed, a conveying belt, a distributing hopper, a distributing screw conveyor, a plurality of vibrating screening machines, a buffer bin, a cooling screw conveyor, a bucket elevator and a distributing belt; the method comprises the steps that wet salt obtained by centrifugation in a centrifuge in a preamble procedure is dried by a drying bed, the dried wet salt is conveyed into a material distributing hopper through a belt conveyor, salt particles are cooled through cold air in the conveying process of the belt, the tail end of the belt is connected with the material distributing hopper, the material distributing hopper is divided into two independent areas through a partition plate in the material distributing hopper, and the salt particles are respectively directly conveyed into a first material inlet of a material distributing screw conveyor and a second overflow port for overflow of the salt particles; when screw conveyer feed rate is less than belt conveyer's feeding rate, salt grain overflows from the second overflow mouth and enters into industrial salt's belt conveyer, still divides the material screw conveyer end to be equipped with first overflow mouth, can ensure the continuous pan feeding of screw screening machine like this and can not the clamping stagnation, a plurality of discharge gate of dividing the material screw conveyer communicates the vibration screening machine respectively, and the vibration screening machine sieves into different granule salt grain with salt grain and partial shipment into in the buffering storehouse, buffering storehouse exit linkage cooling screw conveyer, cooling screw conveyer's discharge gate intercommunication bucket elevator feed inlet, the salt grain that promotes through bucket elevator is carried to the feed belt and is partial shipment to each feed bin.
Since vibratory screening machines are operated intermittently, because in practice the screening operation is timed differently from vibratory screening machine to vibratory screening machine, which requires continuous feeding of the separating screw conveyor, it is necessary to provide a first overflow for excess salt particles.
The surge bin is arranged between the vibration screening machine and the cooling screw conveyor, and comprises a bin body and a discharge opening designed at the bottom of the bin body, wherein the discharge opening is connected with a discharge pipeline through a star discharger, the top of the bin body is sealed with a top cover, the top cover is provided with a material main inlet, the top cover is also provided with a vent pipe used for communicating the inside of the bin body with the outside atmosphere, and the top end of the vent pipe is bent downwards, and the pipe orifice of the vent pipe is provided with a dustproof filter screen.
The salt grain that carries through cooling screw conveyer is sent to the feed divider conveyer belt by bucket elevator, and feed divider conveyer belt and feed bin are closely arranged together, and one side of feed divider conveyer belt is provided with a plurality of with salt grain follow scrape on the feed divider conveyer belt get the scraping mechanism of feed bin, scrape and get the mechanism including the scraper blade body that inclines for feed divider conveyer belt direction of transmission, drive the scraper blade body is perpendicular with the drive assembly of conveyer belt plane motion, and be used for with the scraper blade body sticis in the elastic component on feed divider conveyer belt surface.
In order to ensure the redundancy and reliability of the work of the material distribution conveyer belt, the continuous operation of the preamble process, particularly the evaporation and crystallization process, is not influenced, the material distribution conveyer belt comprises at least one group of first conveyer belts and second conveyer belts which are mutually connected in series, the front end of the first conveyer belt is provided with a material feeding switching mechanism and a first bucket elevator, the lap joint of the first conveyer belt and the second conveyer belt is provided with a second bucket elevator, the middle section of the second conveyer belt is provided with a third bucket elevator, and the tail end of the second conveyer belt is provided with a fourth bucket elevator; the conveying switching mechanism comprises a bracket and a fixed discharging plate, one end of the fixed discharging plate, which is close to the first conveying belt, is connected with an extension assembly and is used for adjusting the feeding length of the conveying switching mechanism, and the bracket is connected with an adjusting assembly and is used for adjusting the inclination of the fixed discharging plate; the extension subassembly includes movable flitch, movable flitch slides and sets up at fixed flitch inner chamber, movable flitch is close to fixed flitch one end and is connected with the stopper that is arranged in preventing movable flitch from sliding out in the fixed flitch, fixed flitch one end top is kept away from to movable flitch is connected with two sets of fixed blocks, two sets of cylinders are installed near movable flitch one end top to fixed flitch, the piston rod is connected to the cylinder output, the fixed block is connected to cylinder one end is kept away from to the piston rod.
The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.
In order to facilitate understanding of the improvements of the present invention over the prior art, some of the figures and descriptions of the present invention have been simplified, and some other elements have been omitted from this document for clarity, as will be appreciated by those of ordinary skill in the art.
Claims (5)
1. A particulate salt screening transport system for receiving and further processing wet salt obtained from an evaporative crystallization system, characterized by: comprises a drying bed, a conveyer belt, a distributing hopper, a distributing screw conveyor, a plurality of vibrating screening machines, a buffer bin, a cooling screw conveyor, a bucket elevator, a distributing belt and a bin which are connected in sequence; the drying bed is used for drying wet salt obtained by centrifugation of a centrifuge in the previous procedure, the wet salt is conveyed into a distributing hopper through a belt conveyor after being dried, the distributing hopper is divided into two independent areas by a baffle plate in the distributing hopper, and salt particles are directly conveyed into a first feeding port of a distributing screw conveyor and a second overflow port for overflow of the salt particles respectively; the end of the material distribution screw conveyor is provided with a first overflow port, the material distribution screw conveyor continuously feeds, a plurality of discharge ports of the material distribution screw conveyor are respectively communicated with the vibration screening machine, the vibration screening machine screens salt particles into salt particles with different particles and the salt particles are subpackaged into a buffering bin, an outlet of the buffering bin is connected with the cooling screw conveyor, a discharge port of the cooling screw conveyor is communicated with a feed port of the bucket elevator, and the salt particles lifted by the bucket elevator are conveyed to a material distribution belt and subpackaged into various bins.
2. The particulate salt screening transportation system of claim 1, wherein: the surge bin comprises a bin body and a discharge opening designed at the bottom of the bin body, the discharge opening is connected with a discharge pipeline through a star discharger, the top of the bin body is sealed with a top cover, a material main inlet is formed in the top cover, a vent pipe used for communicating the inside of the bin body with the outside atmosphere is further arranged on the top cover, and the top end of the vent pipe is bent downwards and provided with a dustproof filter screen.
3. The particulate salt screening transportation system of claim 2, wherein: one side of the material distributing belt is provided with a plurality of scraping mechanisms which scrape materials from the material distributing belt to the storage bin, and each scraping mechanism comprises a scraper body inclined relative to the transmission direction of the material distributing belt, a driving assembly for driving the scraper body to move vertically to the plane of the conveying belt, and an elastic assembly for tightly pressing the scraper body on the surface of the material distributing belt.
4. The particulate salt screening transportation system of claim 3, wherein: the material distributing belt comprises at least one group of first conveying belts and second conveying belts which are mutually connected in series, a material feeding switching mechanism and a first bucket elevator are arranged at the front end of each first conveying belt, a second bucket elevator is arranged at the lap joint position of each first conveying belt and each second conveying belt, a third bucket elevator is arranged at the middle section of each second conveying belt, and a fourth bucket elevator is arranged at the tail end of each second conveying belt; the feeding switching mechanism comprises a bracket and a fixed discharging plate, wherein one end of the fixed discharging plate, which is close to the first conveying belt, is connected with an extension assembly for adjusting the feeding length of the feeding switching mechanism, and the bracket is connected with an adjusting assembly for adjusting the inclination of the fixed discharging plate; the extension subassembly includes movable flitch, movable flitch slides and sets up at fixed flitch inner chamber, movable flitch is close to fixed flitch one end and is connected with the stopper that is arranged in preventing movable flitch from sliding out in the fixed flitch, fixed flitch one end top is kept away from to movable flitch is connected with two sets of fixed blocks, two sets of cylinders are installed near movable flitch one end top to fixed flitch, the piston rod is connected to the cylinder output, the piston rod is kept away from cylinder one end and is connected with fixed block.
5. The particulate salt screening transportation system of claim 4, wherein: and salt particles overflowed from the first overflow port and the second overflow port are directly conveyed to an industrial salt processing procedure through a belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110604946.9A CN113387192B (en) | 2021-05-31 | 2021-05-31 | Particle salt screening and conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110604946.9A CN113387192B (en) | 2021-05-31 | 2021-05-31 | Particle salt screening and conveying system |
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| CN113387192A CN113387192A (en) | 2021-09-14 |
| CN113387192B true CN113387192B (en) | 2023-06-27 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08119627A (en) * | 1994-10-28 | 1996-05-14 | Akou Kaisui Kk | Refining of sun-dried salt |
| CN201190042Y (en) * | 2008-04-25 | 2009-02-04 | 重庆钢铁(集团)有限责任公司 | Blanking and distributing mechanisms of fuel in silo |
| CN105293530B (en) * | 2015-11-02 | 2017-03-29 | 中盐工程技术研究院有限公司 | A kind of powder desalinization of soil by flooding or leaching production method and device |
| CN105371678A (en) * | 2015-11-20 | 2016-03-02 | 湖南省湘衡盐化有限责任公司 | Mirabilite cooling device |
| CN209259067U (en) * | 2018-12-10 | 2019-08-16 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of material shunting device |
| CN210854232U (en) * | 2019-06-18 | 2020-06-26 | 湖南安化渣滓溪矿业有限公司 | Belt ore separation device capable of adjusting ore separation amount |
| CN110357127A (en) * | 2019-06-28 | 2019-10-22 | 孝感广盐华源制盐有限公司 | A kind of anti-caking eats the production method of sodium chloride |
| CN110962291B (en) * | 2019-12-04 | 2022-03-11 | 利辛县美纶纺织有限责任公司 | Unloader for injection molding machine |
| CN111838639A (en) * | 2020-07-28 | 2020-10-30 | 江苏苏盐井神股份有限公司 | Clean salt dehydrating, drying and packaging system and salt production method |
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