CN101428825B - Method and equipment for recycling powder salt in industrial salt washing process - Google Patents
Method and equipment for recycling powder salt in industrial salt washing process Download PDFInfo
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- CN101428825B CN101428825B CN 200810153627 CN200810153627A CN101428825B CN 101428825 B CN101428825 B CN 101428825B CN 200810153627 CN200810153627 CN 200810153627 CN 200810153627 A CN200810153627 A CN 200810153627A CN 101428825 B CN101428825 B CN 101428825B
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Abstract
The invention provides a powder salt recovery method and an equipment thereof, which are used in an industrial salt washing process. The powder salt recovery method in the industrial salt washing process comprises the steps as follows: raw materials in a material feeding tank is washed and spayed by saturated brine; after screw washing, the powder salt with the grain diameter larger than 0.4 mm is sent to a salt stacker for stacking, and the powder salt with the grain diameter larger than 0.18 mm but not larger than 0.4mm is subjected to solid-liquid separation, so that the solid powder salt is sent to the salt stacker for stacking, and the liquid after throwing flows automatically into a clarification tank for cyclic utilization after solid-liquid separation. The invention further provides the equipment using the powder salt recovery method in the industrial salt washing process. The invention has the advantages that not only the washing ability and the quality of industrial salt areimproved, but also the powder salt loss amount in the washing process is reduced. The uptime salt washing ability can reach 250 t salt per hour, the powder salt with the grain diameter larger than 0.18 is recovered, and the quality of the washed industrial salt can achieve the national top grade salt standard. At the same time, the purposes such as low equipment investment, low running cost, energy conservation and the like are achieved.
Description
Technical field
The present invention is to provide powder salt recovery method and equipment thereof in the Industrial Salt large-tonnage industrial salt washing process, the technology that sticks together is piled in concentrated washing in the suitable Industrial Salt production process, can improve Industrial Salt washability and quality greatly, reduce the powder salt number of dropouts in the washing process.
Background technology
In Industrial Salt is produced, lifting along with the production technique level, throughput steadily improves, the output of centralized crystalline element also further increases, what originally adopt is that Industrial Salt is after feeding trough is transported to centrifuge dewatering by the washing of 4 set of tubes, by the desalinization of soil by flooding or leaching method that the conveyor heap sticks together, it is low to exist desalinization of soil by flooding or leaching throughput; Desalinization of soil by flooding or leaching weak effect does not reach national top grade salt quality standard; Do not have the powder salt retrieving arrangement, problem such as the powder salt number of dropouts is big does not satisfy Industrial Salt and produces growing needs.
Summary of the invention
In order to satisfy manufacturing technique requirent, need to increase desalinization of soil by flooding or leaching ability, improve the washing salt quality, reduce the powder salt number of dropouts.By constantly perfect to the test of distinct device and technology for many years, formed powder salt recovery method in the advanced industrial salt washing process of a cover.Present method provides rational equipment configuration, the washing of optimizing and powder salt and reclaims technical process.By the installations and facilities up time desalinization of soil by flooding or leaching ability of present method can reach 250 tons of salt/hour, particle diameter can all reclaim greater than the powder salt of 0.18mm, washs postindustrial salt quality and reaches national top grade salt standard.Also can increase work efficiency greatly.
For achieving the above object, the purpose of this invention is to provide powder salt recovery method in a kind of industrial salt washing process.
Another object of the present invention provides a kind of equipment that is used for industrial salt washing process powder salt recovery method.
The objective of the invention is to be achieved through the following technical solutions:
Powder salt recovery method in a kind of industrial salt washing process of the present invention, this method comprises in the washing process particle diameter〉Industrial Salt of 0.4mm directly heap stick together, and 0.4mm 〉=particle diameter heap sticks together through reclaiming again for the powder salt of 0.18mm, Industrial Salt is in the peace and quiet saturated bittern flushing of desalinization of soil by flooding or leaching machine back warp, spray, be transported to vibratory screening apparatus after the spiral washing, washing salt is being transported to salt stacker on the vibratory screening apparatus after spraying dehydration once more afterwards, have the back liquid gravity flow of washing that has powder salt under the overflowing liquid of powder salt and the vibratory screening apparatus on the desalinization of soil by flooding or leaching machine and enter the powder salt collecting tank, be transported to the whizzer solid-liquid separation through portable vacuum primingpump again, wherein obtaining powder salt carries heap to stick together, get rid of back liquid from flowing back to settling pond, treat recycle after the solid-liquid separation.
The degree Beaume of described peace and quiet saturated bittern is 25～26.
A kind of equipment that is used for described industrial salt washing process powder salt recovery method also is provided, comprises feeding trough, rotary conveyor, desalinization of soil by flooding or leaching machine, vibratory screening apparatus, salt stacker, powder salt collecting tank, header tank, whizzer, settling pond, vacuum primingpump; Described feeding trough links to each other by rotary conveyor with desalinization of soil by flooding or leaching machine, and desalinization of soil by flooding or leaching machine directly docks with vibratory screening apparatus, and vibratory screening apparatus links to each other with salt stacker by rotary conveyor; The overflow port of desalinization of soil by flooding or leaching machine is connected the powder salt collecting tank with the undersized back liquid of washing of vibration by transfer line, be provided with portable vacuum primingpump in the powder salt collecting tank, portable vacuum primingpump links to each other with header tank, whizzer successively by transfer line, and whizzer is connected by rotary conveyor with salt stacker; The transfer line that passes through of header tank and whizzer is connected settling pond.
In the described rotary conveyor belt wide be 600～800mm.
The screen cloth of described vibratory screening apparatus is the strip screen cloth, horizontal positioned, and the gap of screen cloth is 0.4mm.
Its material of described whizzer is a stainless steel, and is preferred 304, mesh size width 0.18mm in the whizzer.
Effect of the present invention is to compare with original method, and advantage of the present invention is a desalinization of soil by flooding or leaching ability height, and the powder salt number of dropouts is little, washes postindustrial salt steady quality.This method not only has washability and the quality that improves Industrial Salt, and has reduced the powder salt number of dropouts in the washing process.Desalinization of soil by flooding or leaching ability can reach 250 tons/hour, and particle diameter all reclaims greater than the powder salt of 0.18mm, washs postindustrial salt quality and reaches national top grade salt standard.It is few to reach facility investment simultaneously, and running cost is low, purposes such as save energy.
Description of drawings
Fig. 1 is the device structure synoptic diagram of recovery of the present invention.
Among the figure:
1, feeding trough 2, rotary conveyor 3, desalinization of soil by flooding or leaching machine
4, vibratory screening apparatus 5, salt stacker 6, powder salt collecting tank
7, header tank 8, whizzer 9, settling pond
10, vacuum primingpump
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated powder salt recovery method and equipment thereof in the industrial salt washing process of the present invention.
The invention provides powder salt recovery method in a kind of industrial salt washing process, be achieved in that Industrial Salt is in the peace and quiet saturated bittern flushing of desalinization of soil by flooding or leaching machine 3 back warps, spray, be transported to vibratory screening apparatus 4 after the spiral washing, washing salt is being transported to salt stacker 5 on the vibratory screening apparatus after spraying dehydration once more afterwards, have the back liquid gravity flow of washing that has powder salt under the overflowing liquid of powder salt and the vibratory screening apparatus on the desalinization of soil by flooding or leaching machine and enter powder salt collecting tank 6, be transported to whizzer 8 solid-liquid separation through portable vacuum primingpump 10 again, wherein obtaining powder salt carries heap to stick together, get rid of back liquid from flowing back to settling pond 9, treat recycle after the solid-liquid separation.
The degree Beaume of described peace and quiet saturated bittern is 25～26.
Of the present invention to be used for described industrial salt washing process powder salt recovery method be to realize in such equipment, and this device structure includes feeding trough 1, rotary conveyor 2, desalinization of soil by flooding or leaching machine 3, vibratory screening apparatus 4, salt stacker 5, powder salt collecting tank 6, header tank 7, whizzer 8, settling pond 9, vacuum primingpump 10; Described feeding trough 1 links to each other by rotary conveyor 2 with desalinization of soil by flooding or leaching machine 3, and desalinization of soil by flooding or leaching machine 3 directly docks with vibratory screening apparatus 4, and vibratory screening apparatus 4 links to each other with salt stacker 5 by rotary conveyor; The back liquid of washing under the overflow port of desalinization of soil by flooding or leaching machine 3 and the vibratory screening apparatus 4 is connected powder salt collecting tank 6 by transfer line, be provided with portable vacuum primingpump 10 in the powder salt collecting tank 6, portable vacuum primingpump 10 links to each other with header tank 7, whizzer 8 successively by transfer line, and whizzer 8 and salt stacker 5 are connected by rotary conveyor; The transfer line that passes through of header tank 7 and whizzer 8 is connected settling pond 9.
The belt of the rotary conveyor that this equipment is used is wide to be 600～800mm, used vibratory screening apparatus horizontal positioned, and screen cloth is the strip screen cloth, the gap of screen cloth is 0.4mm.
The interior mesh size width 0.18mm of whizzer that this equipment is used, the material of whizzer is preferred 304 stainless steel.
As shown in Figure 1, Industrial Salt enters feeding trough 1, sending into 25.5 ° of peace and quiet Be ' saturated bitterns of spiral desalinization of soil by flooding or leaching machine 3 usefulness through the rotary conveyor 2 of bandwidth 650mm washs, Industrial Salt after the washing promotes the vibratory screening apparatus 4 of sending into screen cloth slit 0.4mm through desalinization of soil by flooding or leaching machine 3 spirals and carries out solid-liquid separation, the washing salt particle diameter after the separation〉the sending into salt stacker 5 heaps through rotary conveyor 2 and stick together of 0.4mm.Washing salt particle diameter≤0.4mm after the separation flows into powder salt collecting tank 6 certainly with parting liquid, powder salt in the powder salt collecting tank 6 is raised into header tank 7 by pipeline through vacuum primingpump 10, powder salt is 0.18mm whizzer 8 by pipeline from flowing into the mesh size width at header tank 7, with the powder salt particle diameter〉powder salt of 0.18mm reclaims, sends into salt stacker 5 heaps through rotary conveyor 2 and stick together.Liquid flows back to settling pond 9 by transfer line and recycles after the getting rid of of whizzer 8.
Claims (3)
1. powder salt recovery method in the industrial salt washing process, this method comprise in the washing process with the Industrial Salt of particle diameter＞0.4mm directly heap stick together, heap sticks together and the powder salt of 0.4mm 〉=particle diameter＞0.18mm is through reclaiming again, it is characterized in that: Industrial Salt is 25～26 peace and quiet saturated bittern flushing at desalinization of soil by flooding or leaching machine (3) back warp degree Beaume, spray, be transported to vibratory screening apparatus (4) after the spiral washing, washing salt is being transported to salt stacker (5) on the vibratory screening apparatus after spraying dehydration once more afterwards, have the back liquid gravity flow of washing that has powder salt under the overflowing liquid of powder salt and the vibratory screening apparatus on the desalinization of soil by flooding or leaching machine and enter powder salt collecting tank (6), be transported to whizzer (8) solid-liquid separation through portable vacuum primingpump (10) again, wherein obtaining powder salt carries heap to stick together, get rid of back liquid from flowing back to settling pond (9), treat recycle after the solid-liquid separation.
2. one kind is used for the equipment that the described industrial salt washing process powder salt of claim 1 reclaims, and it is characterized in that: this equipment comprises feeding trough (1), rotary conveyor (2), desalinization of soil by flooding or leaching machine (3), vibratory screening apparatus (4), salt stacker (5), powder salt collecting tank (6), header tank (7), whizzer (8), settling pond (9), vacuum primingpump (10); Described feeding trough (1) links to each other by rotary conveyor (2) with desalinization of soil by flooding or leaching machine (3), and desalinization of soil by flooding or leaching machine (3) directly docks with vibratory screening apparatus (4), and vibratory screening apparatus (4) links to each other with salt stacker (5) by rotary conveyor; The back liquid of washing under the overflow port of desalinization of soil by flooding or leaching machine (3) and the vibratory screening apparatus (4) is connected powder salt collecting tank (6) by transfer line, be provided with portable vacuum primingpump (10) in the powder salt collecting tank (6), portable vacuum primingpump (10) links to each other with header tank (7), whizzer (8) successively by transfer line, and whizzer (8) is connected by rotary conveyor with salt stacker (5); Header tank (7) is connected settling pond (9) with whizzer (8) by transfer line.
3. according to the described powder salt recovery system of claim 2, it is characterized in that: the wide 600～800mm of being of belt in the described rotary conveyor, the screen cloth of described vibratory screening apparatus (4) is the strip screen cloth, horizontal positioned, the gap of screen cloth is 0.4mm; Described whizzer (8) is made the interior mesh size width of whizzer (8) 0.18mm for stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810153627 CN101428825B (en) | 2008-11-28 | 2008-11-28 | Method and equipment for recycling powder salt in industrial salt washing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810153627 CN101428825B (en) | 2008-11-28 | 2008-11-28 | Method and equipment for recycling powder salt in industrial salt washing process |
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| Publication Number | Publication Date |
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| CN101428825A CN101428825A (en) | 2009-05-13 |
| CN101428825B true CN101428825B (en) | 2011-07-20 |
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| CN 200810153627 Active CN101428825B (en) | 2008-11-28 | 2008-11-28 | Method and equipment for recycling powder salt in industrial salt washing process |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106343516B (en) * | 2016-08-28 | 2020-01-07 | 云南盐化股份有限公司 | Salt production system |
| CN109896536B (en) * | 2017-12-11 | 2021-09-07 | 江苏苏盐井神股份有限公司 | Process for producing quality salt product by powder salt crystal transformation |
| CN108211413B (en) * | 2017-12-27 | 2020-07-21 | 地矿集团格尔木盐湖资源开发有限公司 | Solid-liquid separation and heaping-emptying technical method for purifying mineral salt blocks |
| CN108840352A (en) * | 2018-08-17 | 2018-11-20 | 唐山三友盐化有限公司 | Desalinization of soil by flooding or leaching machine |
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