CN112403096B - Waste salt refining method - Google Patents
Waste salt refining method Download PDFInfo
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- CN112403096B CN112403096B CN202011342957.6A CN202011342957A CN112403096B CN 112403096 B CN112403096 B CN 112403096B CN 202011342957 A CN202011342957 A CN 202011342957A CN 112403096 B CN112403096 B CN 112403096B
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- dissolving tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
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- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to the field of waste salt processing, in particular to a waste salt refining method, which comprises the following steps: the method comprises the following steps: preparing a high-temperature molten waste salt dissolving device, which comprises a dissolving tank, a circulating water pipe and a filtering mechanism, wherein the filtering mechanism comprises a filter screen, a rotary pushing unit and a plugging unit; step two: the molten waste salt enters a dissolving tank and is dissolved to form a solution, the solution enters a circulating water pipe, a filter screen adsorbs impurities, a rotary pushing unit enables the solution to flow in a vortex shape, and an adsorbent is dispersed; step three: when the filter screen is blocked by impurities, the rotary pushing unit moves and prompts the solution to impact the filter screen, so that the impurities adhered to the filter screen fall off; step four: the plugging unit moves while the rotary pushing unit moves, and the solution and the fallen impurities are discharged; step five: after the filter screen is dredged, the solution drives the rotary pushing unit to reset through the filter screen, so that the plugging unit is driven to reset to plug the water outlet; step six: the crystals were evaporated and dried. When the technical scheme is adopted, the crushing, dissolving and impurity treatment are integrated.
Description
Technical Field
The invention relates to the field of waste salt processing, in particular to a waste salt refining method.
Background
The commonly used method for refining waste salt is to cool and crystallize molten waste salt burned in an incinerator, crush, dissolve and filter the crystallized waste salt to obtain a pure waste salt solution, evaporate and dry the waste salt solution to obtain pure salt.
Present waste salt processing apparatus need be broken the waste salt of crystallization before dissolving, need filter the impurity in the solution after dissolving, and the process is more loaded down with trivial details, and this application aims at researching and developing one kind and can be with breakage, dissolve and impurity treatment collection in the method of an organic whole to simplify the refined process of waste salt.
Disclosure of Invention
The invention aims to provide a waste salt refining method integrating crushing, dissolving and impurity treatment.
In order to achieve the purpose, the technical scheme of the invention provides a waste salt refining method, which comprises the following steps:
the method comprises the following steps: preparing a high-temperature molten waste salt dissolving device, which comprises a dissolving tank, a settling tank, a circulating water pipe and a filtering mechanism, wherein the circulating water pipe comprises a U-shaped filtering and adsorbing section, one end of the filtering and adsorbing section is provided with a feed inlet, the bottom of the filtering and adsorbing section is provided with a water outlet, the filtering mechanism is arranged in the filtering and adsorbing section and comprises a filter screen, a rotary pushing unit and a plugging unit for plugging the water outlet, a drain pipe is arranged on the dissolving tank, and the drain pipe is communicated with the settling tank;
step two: the molten waste salt enters a dissolving tank and is dissolved to form a solution and enters a circulating water pipe, a filter screen adsorbs impurities in the solution, a rotary pushing unit enables the solution to flow in a vortex shape, and an adsorbent thrown from a feeding port is dispersed;
step three: when the filter screen is blocked by impurities, the rotary pushing unit moves and prompts the solution to impact the filter screen, so that the impurities adhered to the filter screen fall off;
step four: the plugging unit is enabled to release the plugging of the water outlet while the rotary pushing unit moves, and the solution and the fallen impurities at the water outlet are discharged from the water outlet;
step five: after the filter screen is dredged, the solution drives the rotary pushing unit to reset through the filter screen, so that the plugging unit is driven to reset to plug the water outlet;
step six: and conveying the solution in the dissolving tank to a settling tank through a drain pipe, settling, taking a clear solution, evaporating, crystallizing to obtain granular salt, and drying the granular salt.
The technical effect of the scheme is as follows: the waste salt is dissolved into a solution after entering the dissolving tank, and then directly enters the circulating water pipe for filtering, so that the step of crushing the waste salt is omitted, and the working procedures are saved; meanwhile, the formed vortex-shaped solution is convenient for fully dispersing the adsorbent, is beneficial to fully separating out impurities in the solution and then settling in the dissolving tank, and improves the treatment effect of the impurities; and when the filter screen was blockked up by impurity seriously, can make the impurity of adhesion drop on the filter screen automatically, effectively avoided impurity to block up the filter screen and frequently change the condition of filter screen and take place.
Furthermore, a covering is covered on the dissolving tank, an exhaust fan is arranged outside the dissolving tank, and the exhaust fan is communicated with the inside of the dissolving tank. The technical effect of the scheme is as follows: is favorable for keeping the water temperature in the dissolving tank.
Furthermore, a water pump is arranged at the tail end of the circulating water pipe. The technical effect of the scheme is as follows: is beneficial to the water in the dissolving tank to keep flowing fully.
Furthermore, a water guide pipe is arranged below the water outlet, and a gap is reserved between the water guide pipe and the circulating water pipe. The technical effect of the scheme is as follows: the water at the water outlet in the circulating water pipe can flow out quickly under the atmospheric pressure.
Furthermore, the plugging unit comprises a plugging plate, and a push-pull block is fixedly connected to the plugging plate. The technical effect of the scheme is as follows: the plugging plate is convenient to push manually to move through the push-pull block.
Further, be provided with air compressor on the lateral wall of dissolving tank, air compressor can communicate with the dog-house. The technical effect of the scheme is as follows: the air compressor delivers high-pressure air to the circulating water pipe through the feed inlet, so that the impact rotary block is driven to move towards the direction close to the filter screen.
Drawings
FIG. 1 is a schematic three-dimensional view of a dissolution tank in accordance with an embodiment of the present invention;
FIG. 2 is a front sectional view of a circulating water pipe at one side of the dissolving tank;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a dissolving tank 1, a circulating water pipe 2, a smelting furnace 3, a liquid discharge pipe 4, a filtering and adsorbing section 5, a feeding port 6, a water discharge port 7, a filter screen 8, a water guide pipe 9, a rotating block 10, a connecting rod 11, an annular block 12, an inclined hole 13, an annular groove 14, a plugging plate 15, an arc-shaped cavity 16, a clamping block 17 and a push-pull block 18.
The first embodiment is as follows:
the waste salt refining process includes the following steps:
the method comprises the following steps: a high-temperature melting waste salt dissolving device shown in the attached figure 1 is prepared, and comprises a dissolving tank 1, a circulating water pipe 2 and a filtering mechanism, wherein a smelting furnace 3 is arranged on a rack above the dissolving tank 1, a plurality of liquid discharge pipes 4 arranged side by side are connected to the smelting furnace 3, and the water flow of all the liquid discharge pipes 4 is 1.5T/h.
The dissolving tank 1 is positioned below the liquid discharge pipe 4, the water containing quantity of the dissolving tank 1 is 30T, the water temperature in the dissolving tank 1 is kept between 50 and 60 ℃, and the temperature rising range of the molten waste salt after entering the dissolving tank 1 is kept below 15 ℃. The lateral wall of dissolving tank 1 is opened has delivery port and water inlet, and circulating pipe 2 is located dissolving tank 1's outside and with the lateral wall contact of dissolving tank 1, and circulating pipe 2's both ends communicate with delivery port and water inlet respectively.
As shown in fig. 2, the circulating water pipe 2 comprises a U-shaped filtering and adsorbing section 5, a feed port 6 is arranged at the right end of the filtering and adsorbing section 5, and the feed port 6 is used for feeding an adsorbent; an air compressor is fixed on the outer side wall of the dissolving tank 1 through bolts, a hose is connected to the air compressor and communicated with the feed inlet 6 when the hose is inserted into the feed inlet 6, and a drain outlet 7 is formed in the bottom of the filtering and adsorbing section 5.
As shown in fig. 3, the filtering mechanism is arranged in the filtering and adsorbing section 5, the filtering mechanism comprises a filter screen 8, a rotary pushing unit and a plugging unit, an annular ring is arranged on the inner side wall of the circulating water pipe 2, a stabilizing ring is arranged in the annular ring in a rotating manner, and the filter screen 8 is circular and is welded with the inner side wall of the stabilizing ring.
The rotary pushing unit comprises a rotary block 10, a connecting rod 11 and an annular block 12, the rotary block 10 and the annular block 12 are connected through the connecting rod 11, namely the right end of the connecting rod 11 is welded with the rotary block 10, the left end of the connecting rod 11 penetrates through a hole in the edge of the filter screen 8 and then is welded with the annular block 12, and the rotary block 10 and the annular block 12 are positioned on the left side and the right side of the filter screen 8; the rotary block 10 is provided with a plurality of inclined holes 13, and the outer side wall of the annular block 12 is provided with an annular groove 14.
The plugging unit comprises a plugging plate 15, the plugging plate 15 is arc-shaped when viewed from left and right visual angles, an arc-shaped cavity 16 is formed in the side wall of the circulating water pipe 2, and the plugging plate 15 is slidably arranged in the arc-shaped cavity 16 and can plug the water outlet 7; a spring is welded on the plugging plate 15, and the left end of the spring is welded with the bottom of the arc-shaped cavity 16; the inner side wall of the plugging plate 15 is welded with a clamping block 17, the clamping block 17 is rotatably arranged in the annular groove 14, and the outer side wall of the plugging plate 15 is welded with a push-pull block 18.
In addition, the dissolving tank 1 is covered with a covering object, such as a film, an exhaust fan is arranged outside the dissolving tank 1, the exhaust fan is communicated with the space without water inside the dissolving tank 1, and a water pump is arranged at the tail end of the circulating water pipe 2. A water guide pipe 9 is arranged below the water outlet 7, a gap is reserved between the water guide pipe 9 and the circulating water pipe 2, the water guide pipe 9 is communicated with a first sedimentation tank, and clear liquid in the first sedimentation tank can flow into the dissolving tank 1. Still install inlet tube and drain pipe on the dissolving tank 1, the diameter of drain pipe is greater than the diameter of inlet tube, and the drain pipe intercommunication has the second settling basin, and the clarified liquid in the second settling basin is used for the evaporation crystallization.
Step two: melting waste salt gets into and dissolves formation solution behind dissolving tank 1 and gets into in circulating pipe 2, filter screen 8 filters the impurity in the solution when solution process filter screen 8, the solution after the filtration flows through in the inclined hole 13 on rotatory piece 10, thrust is exerted in the lateral wall of inclined hole 13 to solution process inclined hole 13's in-process, thereby it is rotatory to drive rotatory piece 10, and then the solution after driving inclined hole 13 forms swirl form and upwards flows, be convenient for fully will follow the absorbent dispersion that dog-house 6 drops into, be favorable to subsiding in dissolving tank 1 after impurity in the solution fully separates out, the treatment effect of impurity has been improved.
Step three: when the filter screen 8 is seriously blocked by impurities, the flow of the solution passing through the filter screen 8 is reduced, the rotation speed of the rotating block 10 is reduced, namely, the rotating block 10 provides insufficient power for the solution to flow upwards, the solution at the right end of the filtering and adsorbing section 5 flows downwards, the rotating block 10 is impacted to move leftwards, and the solution impacts the filter screen 8 leftwards, so that the impurities adhered to the filter screen 8 fall off.
Step four: the rotating block 10 moves and simultaneously drives the annular block 12, the clamping block 17 and the blocking plate 15 to move leftwards through the connecting rod 11, the spring is compressed in the process, and after the blocking plate 15 releases the blocking of the water outlet 7, the solution at the water outlet 7 and the fallen impurities are discharged from the water outlet 7 and flow into the first sedimentation tank through the water guide pipe 9.
Step five: after the filter screen 8 is dredged, the solution drives the rotating block 10 to rotate after passing through the filter screen 8 and enables the rotating block 10 to move rightwards for resetting, so that the annular block 12, the clamping block 17 and the plugging plate 15 are driven to move rightwards for resetting to plug the water outlet 7, and the blockage of impurities to the filter screen 8 can be automatically removed.
Step six: and conveying the solution in the dissolving tank 1 to a second settling tank through a drain pipe, settling, taking clear liquid, evaporating, crystallizing to obtain granular salt, and drying the granular salt to obtain pure salt.
Example two:
different from the first embodiment, the position of the melting furnace 3 is replaced by a crusher, and the molten waste salt is cooled to be blocks, crushed by the crusher to be powder and then enters the dissolving tank 1.
Example three:
unlike the first embodiment, the melting furnace 3 is provided with a scraper in a sliding manner, and the melting furnace 3 comprises a flame projecting port and a feeding port. The top of smelting pot 3 is made with high temperature resistant thermal insulation material, and the top fixed mounting of smelting pot 3 has the cylinder, and the top of smelting pot 3 is opened has the bar groove moreover, and vertical welding has the support bar on the scraper blade, and the support bar pass the bar groove and with bar groove sliding connection, the upper end of support bar and the output shaft welding of cylinder.
After the waste salt enters the smelting furnace 3 through the feeding hole, the cylinder is started, and the scraping plate is driven to move in the process of extending the output shaft of the cylinder, so that the waste salt accumulated at the feeding hole is favorably and uniformly dispersed in the smelting furnace 3, and the high-temperature flame sprayed from the fire-jet port uniformly melts the waste salt; meanwhile, the method is also beneficial to avoiding the accumulated waste salt from blocking the spread of flame and ensuring the melting quality of the waste salt in the melting furnace 3; but the scraper movement also facilitates scraping off the waste salt stuck at the bottom of the furnace 3.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. The waste salt refining method is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: preparing a high-temperature molten waste salt dissolving device, which comprises a dissolving tank, a settling tank, a circulating water pipe and a filtering mechanism, wherein the circulating water pipe comprises a U-shaped filtering and adsorbing section, one end of the filtering and adsorbing section is provided with a feed inlet, the bottom of the filtering and adsorbing section is provided with a water outlet, the filtering mechanism is arranged in the filtering and adsorbing section and comprises a filter screen, a rotary pushing unit and a plugging unit for plugging the water outlet, a drain pipe is arranged on the dissolving tank, and the drain pipe is communicated with the settling tank; the rotary pushing unit comprises a rotary block, a connecting rod and an annular block, the rotary block and the annular block are connected through the connecting rod, a plurality of inclined holes are formed in the rotary block, and an annular groove is formed in the outer side wall of the annular block;
step two: the molten waste salt enters a dissolving tank and is dissolved to form a solution and enters a circulating water pipe, a filter screen adsorbs impurities in the solution, a rotary pushing unit enables the solution to flow in a vortex shape, and an adsorbent thrown from a feeding port is dispersed;
step three: when the filter screen is blocked by impurities, the rotary pushing unit moves and prompts the solution to impact the filter screen, so that the impurities adhered to the filter screen fall off;
step four: the plugging unit is enabled to release the plugging of the water outlet while the rotary pushing unit moves, and the solution and the fallen impurities at the water outlet are discharged from the water outlet;
step five: after the filter screen is dredged, the solution drives the rotary pushing unit to reset through the filter screen, so that the plugging unit is driven to reset to plug the water outlet;
step six: and conveying the solution in the dissolving tank to a settling tank through a drain pipe, settling, taking a clear solution, evaporating, crystallizing to obtain granular salt, and drying the granular salt.
2. The waste salt refining method according to claim 1, characterized in that: the upper cover of the dissolving tank is provided with a covering object, an exhaust fan is arranged outside the dissolving tank, and the exhaust fan is communicated with the inside of the dissolving tank.
3. The waste salt refining method according to claim 2, characterized in that: the tail end of the circulating water pipe is provided with a water pump.
4. The waste salt refining method according to claim 3, characterized in that: a water guide pipe is arranged below the water outlet, and a gap is reserved between the water guide pipe and the circulating water pipe.
5. The waste salt refining method according to claim 4, characterized in that: the plugging unit comprises a plugging plate, and a push-pull block is fixedly connected to the plugging plate.
6. The waste salt refining method according to claim 5, characterized in that: the outer side wall of the dissolving tank is provided with an air compressor which can be communicated with the feed opening.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011342957.6A CN112403096B (en) | 2020-11-25 | 2020-11-25 | Waste salt refining method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011342957.6A CN112403096B (en) | 2020-11-25 | 2020-11-25 | Waste salt refining method |
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| CN112403096A CN112403096A (en) | 2021-02-26 |
| CN112403096B true CN112403096B (en) | 2021-12-14 |
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| CN114570101B (en) * | 2022-02-28 | 2023-04-04 | 江西省巴斯夫生物科技有限公司 | Natural vitamin E filter equipment |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207891999U (en) * | 2018-02-11 | 2018-09-21 | 陈梦华 | A kind of pipeline configuration of drainage construction |
| CN209557216U (en) * | 2018-12-23 | 2019-10-29 | 陈武 | A kind of fairing of water conservancy pumping plant water inlet flow channel |
| CN209630711U (en) * | 2019-01-07 | 2019-11-15 | 庞国强 | A kind of drainage arrangement of coal mine gob |
| CN109911917A (en) * | 2019-01-16 | 2019-06-21 | 江苏盛勤环境工程有限公司 | The dangerous waste of organic matter containing complicated ingredient consolidates the process of salt resource regeneration |
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