CN210595649U - Special equipment for miscellaneous salt drying process - Google Patents
Special equipment for miscellaneous salt drying process Download PDFInfo
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- CN210595649U CN210595649U CN201921302034.0U CN201921302034U CN210595649U CN 210595649 U CN210595649 U CN 210595649U CN 201921302034 U CN201921302034 U CN 201921302034U CN 210595649 U CN210595649 U CN 210595649U
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Abstract
The utility model discloses a professional equipment of miscellaneous salt mummification technology, its characterized in that: the device comprises a stirring tank (1), a roller scraper dryer (2), a condenser (3), a scrubbing tower (4), a liquid collecting tank (5), a water inlet tank (6), a salt collecting system (7), a condensed water recycling system (8), a waste liquid discharging and collecting system (9), a first water inlet pump (10), a second water inlet pump (11), a circulating pump (12) and an induced draft fan (13); the utility model discloses an effective combination of stirring, drying, condensation, scrubbing process, simple process is easily controlled, can effectively reduce environmental pollution, realizes the water resource retrieval and utilization, has reduced the energy consumption of system.
Description
Technical Field
The utility model belongs to the technical field of the useless salt processing of industry, specifically say that relate to a professional equipment of miscellaneous salt mummification technology.
Background
With the stricter environmental protection policy, the treatment requirement of industrial wastewater is higher and higher, such as industrial production wastewater of petrochemical industry, coal chemical industry, metallurgy, pharmacy, printing and dyeing, papermaking and the like, all the industrial production wastewater meets the treatment requirement of zero emission, and a large amount of mixed salt can not be disposed after the industrial wastewater is treated by the process at present. The miscellaneous salt contains a large amount of organic or inorganic impurities, cannot be recycled, generally can be treated only as hazardous waste, is harmful to the environment if not treated, and causes resource waste.
The existing treatment methods for miscellaneous salt at home and abroad generally comprise: safe landfill method, salt washing method, pyrolysis method, etc. The safe landfill method occupies a large amount of fields and can cause irreversible damage to the surrounding environment, and most dangerous landfill sites do not adopt the method. The salt washing method utilizes saturated salt solution for washing, is suitable for the condition that organic matter in mixed salt is single in composition and easy to dissolve in water, but can generate high-salt wastewater at the same time, and increases the treatment difficulty. The pyrolysis method carbonizes, cracks or volatilizes the organic matters in the miscellaneous salt through a heating furnace, a cracking furnace and the like, so as to achieve the purpose of removing the organic matters. However, the process is subject to strict operating conditions, high energy consumption, complex operation and may also transfer pollutants to the atmosphere. In specific application, the impurities in the industrial waste salt are generally removed by a heating drying mode, but the treatment efficiency is low and the running cost is high. Therefore, how to carry out the high-efficiency low-cost drying treatment of the miscellaneous salt is a development trend of various industries and is also an inevitable requirement for environmental protection.
Chinese patent CN 201621459463.5 discloses a waste salt heating and drying device, which is composed of a burner, a negative pressure fan and a drying tower. Compared with the prior art, the process increases the contact time of the salt particles and the flue gas, fully exposes the organic matters in the salt particles by repeatedly stir-frying, so that the treatment effect is stable, but the energy consumption of the whole system is higher.
Chinese patent CN 201720523345.9 discloses a waste salt recycling process and a special device thereof, wherein the waste salt drying process utilizes natural gas combustion to realize waste salt drying and preheating and organic matter burning in the waste salt; filtering and alkali washing the waste gas containing a small part of organic matters from the top of the molten salt furnace, then feeding the waste gas into a heat accumulating type thermal oxidation furnace for further thermal destruction, and discharging the organic waste gas subjected to thermal destruction into the atmosphere after alkali washing and purification. The waste salt drying process is complex, high in energy consumption and difficult to control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a miscellaneous salt mummification technology professional equipment to the above-mentioned difficult problem that current miscellaneous salt mummification process efficiency is low, the energy consumption is high, the running cost is high, through the effective combination of stirring, drying, condensation, scrubbing process, simple process is easily controlled, can effectively reduce environmental pollution, realizes the water resource retrieval and utilization, has reduced the energy consumption of system to investment operation cost and danger waste disposal expense have been reduced.
Technical scheme
In order to realize the technical purpose, the utility model provides a pair of professional equipment of miscellaneous salt mummification technology which characterized in that: the device comprises a stirring tank, a roller scraper dryer, a condenser, a gas washing tower, a liquid collecting tank, a water inlet tank, a salt collecting system, a condensed water recycling system, a waste liquid discharging and collecting system, a first water inlet pump, a second water inlet pump, a circulating pump and an induced draft fan;
the water inlet tank is connected with the feed end of the stirring tank, and a first water inlet pump is arranged on the connecting pipeline; a discharge port of the stirring tank is connected with a feed port of the roller scraper dryer, and a second water inlet pump is arranged on a connecting pipeline; a discharge port of the roller scraper dryer is connected with a salt collecting system, a condensed water outlet of the roller scraper dryer is connected with an inlet of a condensed water recycling system, a steam outlet of the roller scraper dryer is connected with a steam inlet of a condenser, a water outlet of the condenser is connected with a liquid collecting tank, and the bottom of the liquid collecting tank is connected with the condensed water recycling system; the steam outlet of the condenser is connected with the inlet of the gas washing tower; the gas outlet at the top of the gas washing tower is connected with the induced draft fan, and the water outlet at the bottom of the gas washing tower is connected with a sewage discharge and collection system.
Further, the roller scraper dryer is provided with an overflow port for returning the feed liquid to the stirring tank, and the bottom of the roller scraper dryer is provided with an aeration port for introducing compressed air; meanwhile, a steam inlet is arranged for introducing hot steam to heat the saline liquid film on the surface of the cylinder body;
further, the condenser is provided with a circulating cooling water inlet and a circulating cooling water outlet;
furthermore, the gas washing tower is provided with a circulating pump for circulating the solvent for gas washing to achieve the purpose of removing organic matters.
Advantageous effects
The utility model provides a pair of professional equipment of miscellaneous salt mummification technology, the utility model discloses an effective combination of stirring, drying, condensation, scrubbing process, simple process is easily controlled, can effectively reduce environmental pollution, realizes the water resource retrieval and utilization, has reduced the energy consumption of system to investment operation cost and the useless expense of handling of danger have been reduced.
Drawings
Fig. 1 is a process flow diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of the connection relationship of the dedicated device in the embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Examples
As shown in the attached figure 2, the special equipment for the miscellaneous salt drying process comprises a stirring tank 1, a roller scraper dryer 2, a condenser 3, a scrubber tower 4, a liquid collecting tank 5, a water inlet tank 6, a salt collecting system 7, a condensed water recycling system 8, a dirty liquid discharging and collecting system 9, a first water inlet pump 10, a second water inlet pump 11, a circulating pump 12 and an induced draft fan 13;
the water inlet tank 6 is connected with the feed end of the stirring tank 1, and a first water inlet pump 10 is arranged on the connecting pipeline; a discharge hole of the stirring tank 1 is connected with a feed hole of the roller scraper dryer 2, and a second water inlet pump 11 is arranged on a connecting pipeline; a discharge hole of the roller scraper dryer 2 is connected with a salt collecting system 7, a condensed water outlet of the roller scraper dryer 2 is connected with an inlet of a condensed water recycling system 8, and a steam outlet of the roller scraper dryer 2 is connected with a steam inlet of the condenser 3; the water outlet of the condenser 3 is connected with the liquid collecting tank 5, and the bottom of the liquid collecting tank 5 is connected with the condensed water recycling system 8; the steam outlet of the condenser (3) is connected with the inlet of the scrubber tower 4; the gas outlet at the top of the gas washing tower 4 is connected with a draught fan 13, and the water outlet at the bottom of the gas washing tower 4 is connected with a sewage discharge and collection system 9.
The roller scraper dryer 2 is provided with an overflow port for feeding liquid to flow back into the stirring tank, and the bottom of the roller scraper dryer is provided with an aeration port 2a for introducing compressed air; meanwhile, a steam inlet 2b is arranged for introducing hot steam to heat the saline liquid film on the surface of the cylinder body;
the condenser 3 is provided with a circulating cooling water inlet 3a and a circulating cooling water outlet 3 b;
the scrubber 4 is equipped with a circulating pump 12 for circulating a solvent for scrubbing to remove organic substances.
As shown in the attached figure 1, the process for drying the miscellaneous salt by using the special equipment comprises the following steps:
step one, continuously stirring the water, controlling the rotating speed at 15-50r/min, reacting for 30-90min, and carrying out the next step on the obtained fully and uniformly mixed produced water.
And step two, carrying out a heating and drying process on the produced water obtained in the step one, controlling the temperature at 60-110 ℃, collecting the obtained salt, discharging the obtained condensed water for recycling, and feeding the generated steam into the next step.
And thirdly, condensing the first steam in the second step, controlling the temperature to be between 60 and 100 ℃, discharging and recycling the obtained second produced water, and enabling the second steam to enter the next step.
And fourthly, performing a washing process on the second steam in the third step, and reacting water or alkali liquor with organic matters to wash and remove the organic matters in the second steam to obtain third steam and discharge the third steam.
The utility model provides a pair of professional equipment of miscellaneous salt mummification technology, the utility model discloses an effective combination of stirring, drying, condensation, scrubbing process, simple process is easily controlled, can effectively reduce environmental pollution, realizes the water resource retrieval and utilization, has reduced the energy consumption of system to investment operation cost and the useless expense of handling of danger have been reduced.
Claims (2)
1. A special device for a miscellaneous salt drying process is characterized in that: the device comprises a stirring tank (1), a roller scraper dryer (2), a condenser (3), a scrubbing tower (4), a liquid collecting tank (5), a water inlet tank (6), a salt collecting system (7), a condensed water recycling system (8), a waste liquid discharging and collecting system (9), a first water inlet pump (10), a second water inlet pump (11), a circulating pump (12) and an induced draft fan (13);
the water inlet box (6) is connected with the feed end of the stirring tank (1), a first water inlet pump (10) is arranged on a connecting pipeline, the discharge port of the stirring tank (1) is connected with the feed port of the roller scraper dryer (2), a second water inlet pump (11) is arranged on the connecting pipeline, the discharge port of the roller scraper dryer (2) is connected with the salt collecting system (7), the condensed water outlet of the roller scraper dryer (2) is connected with the inlet of the condensed water recycling system (8), the steam outlet of the roller scraper dryer (2) is connected with the steam inlet of the condenser (3), the water outlet of the condenser (3) is connected with the liquid collecting tank (5), the bottom of the liquid collecting tank (5) is connected with the condensed water recycling system (8), the steam outlet of the condenser (3) is connected with the inlet of the gas washing tower (4), the gas outlet at the top of the gas washing tower (4) is connected with the induced draft fan (13), the bottom water outlet of the gas washing tower (4) is connected with a sewage discharge and collection system (9).
2. The special equipment for the miscellaneous salt drying process of claim 1, wherein the special equipment comprises: the roller scraper dryer (2) is provided with an overflow port for feeding liquid back to the stirring tank, the bottom of the roller scraper dryer is provided with an aeration port (2a) for introducing compressed air, and the inlet side of the roller scraper dryer is provided with a steam inlet (2b) for introducing hot steam to heat a saline liquid film on the surface of the cylinder;
the condenser (3) is provided with a circulating cooling water inlet (3a) and a circulating cooling water outlet (3 b);
the gas washing tower (4) is provided with a circulating pump (12) for circulating a solvent for gas washing to achieve the purpose of removing organic matters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302034.0U CN210595649U (en) | 2019-08-08 | 2019-08-08 | Special equipment for miscellaneous salt drying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302034.0U CN210595649U (en) | 2019-08-08 | 2019-08-08 | Special equipment for miscellaneous salt drying process |
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| Publication Number | Publication Date |
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| CN210595649U true CN210595649U (en) | 2020-05-22 |
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| CN201921302034.0U Active CN210595649U (en) | 2019-08-08 | 2019-08-08 | Special equipment for miscellaneous salt drying process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342719A (en) * | 2019-08-08 | 2019-10-18 | 上海晶宇环境工程股份有限公司 | A kind of technique and special equipment of carnallite desiccation |
-
2019
- 2019-08-08 CN CN201921302034.0U patent/CN210595649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342719A (en) * | 2019-08-08 | 2019-10-18 | 上海晶宇环境工程股份有限公司 | A kind of technique and special equipment of carnallite desiccation |
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