CN216303598U - System for combined alkali making device ammonia II mud integrated processing - Google Patents
System for combined alkali making device ammonia II mud integrated processing Download PDFInfo
- Publication number
- CN216303598U CN216303598U CN202122394777.9U CN202122394777U CN216303598U CN 216303598 U CN216303598 U CN 216303598U CN 202122394777 U CN202122394777 U CN 202122394777U CN 216303598 U CN216303598 U CN 216303598U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- mud
- filter press
- pipeline
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a comprehensive treatment system for ammonia II mud of a combined alkali preparation device, which comprises the following steps: the system comprises a four-in-one filter press, an air compressor, a feed pump, a water washing pump, a hot water pump, a vacuum pump, an ammonia II mud slurry tank, a filtrate tank, a hot water tank, an alkali-associated device condensed water tank, a cold separation crystallizer overflow tank, a dry material bin and a condenser. The method has the advantages of short treatment time, less equipment and simple flow, can directly treat the ammonia II mud slurry with the water content of more than 90 percent into the ammonia II mud with the water content of less than 5 percent, can reduce the discharge amount of the ammonia II mud to the maximum extent, reduces the loss of raw materials such as fixed ammonia, free ammonia, sodium chloride and the like, has the ammonia content of the treated ammonia II mud of less than 0.5 percent, has no peculiar smell, has no problems of environmental pollution, health hazard and the like, can be treated along with the salty mud, and can save land and treatment cost.
Description
Technical Field
The utility model relates to a system for comprehensively treating solid waste, in particular to a system for comprehensively treating ammonia II mud of a combined alkali preparation device.
Background
In the process of producing the soda ash by the combined soda production method, in order to ensure the product quality, although the raw material salt is subjected to a raw salt refining procedure before being added into a system, most of impurities such as calcium, magnesium, silt and the like contained in the raw material salt are transferred into the salt slurry, and a small part of impurities wrapped in sodium chloride crystals are not removed. After the impurities enter the system, a series of complex reactions occur between the impurities and substances such as ammonia, carbon dioxide and the like in the system, and the impurities are accumulated along with time to generate a mud-shaped precipitate which is ammonia II mud in an ammonia II clarifying barrel. At present, the commonly adopted treatment mode of ammonia II mud is that filter cakes are directly stacked or buried after filter pressing, and filter liquor is returned to an alkali-associated system for recycling. The traditional plate-and-frame filter press, belt filter press or horizontal screw press has longer treatment time, and the water content of the ammonia II mud after filter pressing is still up to more than 60%. The higher the moisture content is, just more along with fixed ammonia, free ammonia, raw materials such as sodium chloride of water loss are just, and need occupy more places, and in addition, II mud of ammonia that the moisture content is high can release the ammonia of a large amount of pungent smell in stacking the in-process, harm environment and operating personnel health, along with environmental protection requirement is stricter day by day, II mud of ammonia will be divided into dangerous solid useless from ordinary solid useless, and the current mode of treatment will be difficult to continue at that moment, will certainly spend more treatment cost. Therefore, in order to solve the problem of ammonia ii sludge that restricts the development of the existence of the combined alkali, it is necessary to perform a detoxification and reduction treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, provides a system for comprehensively treating ammonia II mud of a combined alkali-making device, has short treatment time, less equipment and simple flow, can directly treat ammonia II mud slurry with the water content of more than 90 percent into ammonia II mud with the water content of less than 5 percent, can reduce the discharge amount of the ammonia II mud to the maximum extent, reduces the loss of raw materials such as fixed ammonia, free ammonia, sodium chloride and the like, has the ammonia content of the treated ammonia II mud of less than 0.5 percent, has no peculiar smell, no environmental pollution, health hazard and the like, can be treated together with salt mud, and can save land and treatment cost.
The purpose of the utility model is realized by the following technical scheme.
The utility model relates to a system for comprehensively treating ammonia II mud of a combined alkali-making device, which comprises a four-in-one filter press, an air compressor, a feed pump, a water washing pump, a hot water pump, a vacuum pump, an ammonia II mud slurry tank, a filtrate tank, a hot water tank, a condensation water tank of the combined alkali-making device, a cold separation crystallizer overflow groove, a dry material bin and a condenser;
a feed inlet of the four-in-one filter press is connected with a discharge outlet of the ammonia II mud slurry tank through a pipeline, and a filtrate outlet of the four-in-one filter press is connected with a filtrate tank through a filtrate pipeline; a washing water inlet of the four-in-one filter press is connected with an outlet of the overflow groove of the cold separation crystallizer through a pipeline, and a washing water outlet of the four-in-one filter press is connected with the filtrate tank through a washing water pipeline; a purge gas inlet of the four-in-one filter press is connected with an air compressor through a pipeline, and a purge gas outlet of the four-in-one filter press is connected with an inlet of the condenser through a purge air pipeline; the hot water inlet of the four-in-one filter press is connected with the outlet of the hot water tank through a pipeline, and the hot water outlet of the four-in-one filter press is connected with the inlet of the condensed water tank of the alkali combination device through a hot water return pipeline; a dry material bin is arranged right below a dry material discharge port of the four-in-one filter press; the vacuum interface of the four-in-one filter press is connected with the air inlet of a vacuum pump through a vacuum pipeline, the air outlet of the vacuum pump is connected with the inlet of a condenser through a tail gas pipeline, the outlet at the bottom of the condenser is connected with a filtrate tank through a condensate pipeline, and the top of the condenser is provided with a non-condensable gas outlet.
The four-in-one filter press integrates four functions of concentration, filter pressing, washing and low-temperature vacuum drying, and adopts a product with the model number of STD50 of the Beijing water-length solid-liquid separation technology Limited company.
And an outlet of the filtrate tank is connected to the alkali-combining device through a pipeline, and filtrate in the filtrate tank returns to the alkali-combining device for cyclic utilization.
The outlet of the dry material bin is connected to the salt mud treatment device through a pipeline, and the dry materials in the dry material bin are sent to the salt mud treatment device to be combined and treated.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
(1) the four-in-one filter press adopted by the utility model integrates the processes of concentration, filter pressing, washing, low-temperature vacuum drying and the like of ammonia II mud into a whole, and is continuously completed on the same equipment, so that the treatment efficiency is improved, the treatment time is shortened, washing equipment and drying equipment are saved, the flow is simple, the operation is convenient, and meanwhile, the occupied area and the investment of the equipment can be saved.
(2) The water content of the ammonia II mud treated by the method can be reduced to below 5%, compared with the water content of the ammonia II mud treated by the traditional method of more than 60%, the method greatly reduces the discharge amount of the ammonia II mud, reduces the loss of raw materials such as fixed ammonia, free ammonia, sodium chloride and the like, and saves the cost. The ammonia content of the treated ammonia II mud is below 0.5 percent, and the ammonia II mud has no peculiar smell, no environmental pollution, no health hazard and other problems.
(3) The utility model has no new three wastes generated in the treatment process. The washing water pump is connected between the washing water inlet of the four-in-one filter press and the outlet of the overflow groove of the cold separation crystallizer, and the overflow liquid of the cold separation crystallizer of the alkali-combining device is used as the washing water, so the washing effect is better due to low temperature, small amount of contained fixed ammonia and free ammonia. The filtrate outlet and the washing water outlet of the four-in-one filter press are both connected with a filtrate tank, the outlet of the filtrate tank is connected with an alkali-associated device through a pipeline, and residual fixed ammonia and free ammonia in the filter cake can be returned to the alkali-associated device to be recycled as mother liquor after being washed. A vacuum pump is connected between a vacuum interface of the four-in-one filter press and an inlet of a condenser 11, a small amount of ammonia-containing tail gas generated by low-temperature vacuum drying is condensed to further recover useful component ammonia, and non-condensable gas is directly merged into a torch. According to the utility model, the dry material bin is arranged under the dry material discharge port of the four-in-one filter press, the outlet of the dry material bin is connected to the salt mud treatment device, and the treated dry material ammonia II mud can be delivered to the salt mud treatment device for combination treatment due to the similarity of the components (mainly calcium, magnesium, silt and other water insoluble substances, and a small amount of sodium chloride) of the dry material ammonia II mud, so that the land for stacking the ammonia II mud and the treatment cost are saved.
Drawings
FIG. 1 is a schematic diagram of a system for integrated treatment of ammonia II sludge in a combined soda plant.
Reference numerals: the system comprises a 1-ammonia II mud slurry tank, a 2-feeding pump, a 3-four-in-one filter press, a 4-filtrate pipeline, a 5-filtrate tank, a 6-cold crystallizer overflow tank, a 7-washing water pump, a 8-washing water pipeline, a 9-air compressor, a 10-purging air pipeline, a 11-condenser, a 12-hot water tank, a 13-hot water pump, a 14-hot water return pipeline, a 15-alkali device condensation water tank, a 16-vacuum pump, a 17-vacuum pipeline, a 18-tail gas pipeline, a 19-condensation liquid pipeline, a 20-dry material storage bin and a 21-dry material discharge port.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, the system for comprehensively treating ammonia ii sludge of a combined alkali-making device comprises a four-in-one filter press 3, an air compressor 9, a feed pump 2, a wash water pump 7, a hot water pump 13, a vacuum pump 16, an ammonia ii sludge tank 1, a filtrate tank 5, a hot water tank 12, a condensed water tank 15 of the combined alkali-making device, a cold separation crystallizer overflow tank 6, a dry material bin 20, a condenser 11 and related connecting pipelines. The four-in-one filter press 3 is a filter press integrating four functions of concentration, filter pressing, washing and low-temperature vacuum drying, and adopts a product of the model number of STD50 of the Limited Beijing water-long solid-liquid separation technology.
The four-in-one filter press 3 is connected with the ammonia II mud slurry tank 1 through a pipeline by a feed pump 2, and the filtrate outlet of the four-in-one filter press 3 is connected with a filtrate tank 5 through a filtrate pipeline 4. A washing water pump 7 is connected between a washing water inlet of the four-in-one filter press 3 and an outlet of the overflow groove 6 of the cryo-crystallizer through a pipeline, and the washing water of the four-in-one filter press 3 is overflow liquid of the cryo-crystallizer; the washing water outlet of the four-in-one filter press 3 is connected with a filtrate tank 5 through a washing water pipeline 8, the outlet of the filtrate tank 5 is connected to an alkali-combining device through a pipeline, and the filtrate in the filtrate tank 5 returns to the alkali-combining device for cyclic utilization. The inlet of the purge gas of the four-in-one filter press 3 is connected with an air compressor 9 through a pipeline, and the outlet of the purge gas of the four-in-one filter press 3 is connected with the inlet of a condenser 11 through a purge air pipeline 10. The hot water inlet of the four-in-one filter press 3 is connected with the outlet of the hot water tank 12 through a pipeline, the hot water pump 13 is connected with the hot water outlet of the four-in-one filter press 3 through a hot water return pipeline 14, and the hot water outlet is connected with the inlet of the condensation water tank 15 of the alkali-combining device. A dry material bin 20 is arranged under a dry material discharge port 21 of the four-in-one filter press 3, an outlet of the dry material bin 20 is connected to a salt mud treatment device through a pipeline, and dry materials in the dry material bin 20 are sent to the salt mud treatment device to be combined and treated. The vacuum interface of the four-in-one filter press 3 is connected with the air inlet of a vacuum pump 16 through a vacuum pipeline 17, the air outlet of the vacuum pump 16 is connected with the inlet of a condenser 11 through a tail gas pipeline 18, the outlet at the bottom of the condenser 11 is connected with a filtrate tank 5 through a condensate pipeline 19, the top of the condenser 11 is provided with a non-condensable gas outlet, and the non-condensable gas is removed to a torch.
The utility model relates to a system for comprehensively treating ammonia II mud of a combined alkali-making device, which comprises the following working steps:
(1) the mud with the water content of more than 90 percent in the mud pot 1 of ammonia II is sent to a four-in-one filter press 3 through a feed pump 2, the solid-liquid separation is carried out under the squeezing pressure of 1.0-1.6MPa, and the filtrate is sent to a filtrate pot 5. Stopping feeding when the feeding pressure rises to 0.8-1.2Mpa, and continuously squeezing for 5-15min until no filtrate flows out.
(2) Starting a water washing pump 7, boosting the pressure of overflow liquid in an overflow groove 6 of the cryo-crystallizer to 0.2-0.4MPa, and then increasing the pressure to 1.7-2.5m3The flow pump of/h is sent to a four-in-one filter press 3, the filter cake obtained after solid-liquid separation is washed for 20-30min, the fixed ammonia, free ammonia, sodium chloride and other raw materials remained in the filter cake are washed out, and then the washing effluent is sent to a filtrate tank 5.
(3) Starting the air compressor 9, and compressing 0.6-0.8MPa air by 0.5-0.9m3Introducing the flow of/h into the four-in-one filter press 3, purging the filter cake for 15-25min, and blowing out the capillary water remaining in gaps of filter cake particles under the action of strong airflow, so as to reduce the water content of the filter cake to the maximum extent. The purged compressed air enters a condenser 11, the condensate in the condenser 11 is sent to a filtrate tank 5, and the non-condensable gas is sent to a torch.
(4) After the squeezing pressure is removed, the vacuum pump 16 is started to pump the hot water to the vacuum degree of less than or equal to-0.01 MPa, then the hot water pump 13 is started to boost the hot water with the temperature of 80-90 ℃ in the hot water tank 12 to 0.2-0.5MPa, and then the pressure is increased by 3.5-4.5m3And a flow pump of the flow rate/h is used for pumping the filter cake into a four-in-one filter press 3, the filter cake is subjected to low-temperature vacuum drying for 30-40min, and hot water backwater is sent to a condensation water tank 15 of the combined alkali device. The tail gas containing ammonia pumped by the vacuum pump 16 is sent to the condenser 11, the condensate in the condenser 11 is sent to a filtrate tank, and the non-condensable gas is sent to a torch.
(5) After the drying is finished, the hot water pump 13 is stopped, the vacuum pump 16 is stopped, the exhaust valve of the four-in-one filter press 3 is opened to release the pressure, then the dry material discharge port of the four-in-one filter press 3 is opened, and the dry material ammonia II mud falls into the dry material bin 20 under the action of gravity.
The water content of the treated dry material ammonia II mud is below 5 percent, the ammonia content is below 0.5 percent, and the dry material ammonia II mud is sent to a salt mud treatment device to be combined. And returning the filtrate in the filtrate tank 5 to the alkali-associated device for recycling.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the precise functions and operations described above, and that the above-described embodiments are illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the utility model as defined by the appended claims.
Claims (4)
1. The system for comprehensively treating the ammonia II mud of the combined alkali-making device is characterized by comprising a four-in-one filter press (3), an air compressor (9), a feeding pump (2), a washing water pump (7), a hot water pump (13), a vacuum pump (16), an ammonia II mud slurry tank (1), a filtrate tank (5), a hot water tank (12), a combined alkali-making device condensation water tank (15), a cold-separation crystallizer overflow tank (6), a dry material bin (20) and a condenser (11);
a feed inlet of the four-in-one filter press (3) is connected with a discharge outlet of the ammonia II mud slurry tank (1) through a pipeline to form a feed pump (2), and a filtrate outlet of the four-in-one filter press (3) is connected with a filtrate tank (5) through a filtrate pipeline (4); a washing water inlet of the four-in-one filter press (3) is connected with an outlet of the overflow tank (6) of the cryo-crystallizer through a pipeline by a washing water pump (7), and a washing water outlet of the four-in-one filter press (3) is connected with the filtrate tank (5) through a washing water pipeline (8); a purge gas inlet of the four-in-one filter press (3) is connected with an air compressor (9) through a pipeline, and a purge gas outlet of the four-in-one filter press (3) is connected with an inlet of a condenser (11) through a purge air pipeline (10); a hot water inlet of the four-in-one filter press (3) is connected with an outlet of the hot water tank (12) through a pipeline to form a hot water pump (13), and a hot water outlet of the four-in-one filter press (3) is connected with an inlet of a condensation water tank (15) of the alkali-associated device through a hot water return pipeline (14); a dry material bin (20) is arranged right below a dry material discharge port (21) of the four-in-one filter press (3); the vacuum interface of the four-in-one filter press (3) is connected with the air inlet of a vacuum pump (16) through a vacuum pipeline (17), the air outlet of the vacuum pump (16) is connected with the inlet of a condenser (11) through a tail gas pipeline (18), the outlet at the bottom of the condenser (11) is connected with a filtrate tank (5) through a condensate pipeline (19), and the top of the condenser (11) is provided with a noncondensable gas outlet.
2. The system for comprehensively treating ammonia II mud of the combined alkali-making device according to claim 1, wherein the four-in-one filter press (3) is a filter press integrating four functions of concentration, filter pressing, washing and low-temperature vacuum drying, and adopts a product of the model STD50 of the Beijing water-length solid-liquid separation technology Limited company.
3. The system for comprehensively treating ammonia II mud of the combined alkali-making device according to claim 1, wherein the outlet of the filtrate tank (5) is connected to the alkali-making device through a pipeline, and the filtrate in the filtrate tank (5) is returned to the alkali-making device for recycling.
4. The system for the integrated treatment of ammonia II mud of an integrated alkali-making plant according to claim 1, wherein the outlet of the dry material bin (20) is connected to a salt mud treatment device through a pipeline, and dry materials in the dry material bin (20) are sent to the salt mud treatment device for combined treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122394777.9U CN216303598U (en) | 2021-09-30 | 2021-09-30 | System for combined alkali making device ammonia II mud integrated processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122394777.9U CN216303598U (en) | 2021-09-30 | 2021-09-30 | System for combined alkali making device ammonia II mud integrated processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216303598U true CN216303598U (en) | 2022-04-15 |
Family
ID=81114469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122394777.9U Active CN216303598U (en) | 2021-09-30 | 2021-09-30 | System for combined alkali making device ammonia II mud integrated processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216303598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813660A (en) * | 2021-09-30 | 2021-12-21 | 天津渤化永利化工股份有限公司 | System and method for comprehensively treating ammonia II mud of combined alkali production device |
-
2021
- 2021-09-30 CN CN202122394777.9U patent/CN216303598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813660A (en) * | 2021-09-30 | 2021-12-21 | 天津渤化永利化工股份有限公司 | System and method for comprehensively treating ammonia II mud of combined alkali production device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111214844A (en) | Clean production system and process for cellulose mixed ether | |
| CN216303598U (en) | System for combined alkali making device ammonia II mud integrated processing | |
| CN116283094A (en) | Cooperative treatment method and system for waste incineration fly ash and silicon-rich waste | |
| CN102491575B (en) | Method for performing comprehensive treatment by utilizing waste water from production of ternary monomer | |
| CN100343187C (en) | Treatment process for industrial wastewater of VB12 production and dedicated wastewater treatment machine therefor | |
| CN113546948B (en) | Method for producing soluble denitrification carbon source by enhancing thermal hydrolysis of kitchen waste and synchronously separating and recovering grease | |
| CN110813983B (en) | Method and device for recycling solid waste phenol residues produced in alkylphenol production process | |
| CN104003910B (en) | The method extracting 5-sodium sulfo isophthalate waste water is produced from three monomers | |
| CN203754551U (en) | Device for recycling and treating waste water produced during preparation of decanedioic acid by utilizing castor oil | |
| CN113023858A (en) | Method for simply and efficiently treating chromium-containing waste liquid | |
| CN115305574B (en) | Method for rapidly preparing whisker by using phosphogypsum and saline | |
| CN113813660A (en) | System and method for comprehensively treating ammonia II mud of combined alkali production device | |
| CN108726553B (en) | System for utilize carbide slag and sulfuric acid waste production calcium sulfate | |
| CN216662543U (en) | High pressure fine coal gasification black water low pressure flash distillation device | |
| KR101614326B1 (en) | Method for producing nitrite salts containing ammonia from used nitrite | |
| CN100572280C (en) | The method that a kind of mother liquor floating material during production of aluminum oxide is handled | |
| CN211035258U (en) | Aluminum ash recovery system | |
| CN112897489A (en) | Novel phosphoric acid filtering method in dihydrate wet-process phosphoric acid | |
| CN214891287U (en) | Recycling device for purifying salt-making mother liquor slurry by flue gas method | |
| CN218903034U (en) | Reutilization system for waste carbon dioxide and steel slag | |
| CN115057568B (en) | Method for treating ammonium paratungstate crystallization mother liquor | |
| CN203922752U (en) | A kind of device that removes ammonium sulfate and calcium carbonate mixture slurry free ammonia | |
| CN202201854U (en) | Waste water reusing system during production process of polyether polyol | |
| CN217377609U (en) | Concentrated solution evaporation salt manufacturing system | |
| CN103043693B (en) | Bayer-method-based aluminum oxide production system using carbide slag instead of lime |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |