CN102491296A - Method for recovering and using machine sealing water during monoammonium phosphate production - Google Patents
Method for recovering and using machine sealing water during monoammonium phosphate production Download PDFInfo
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- CN102491296A CN102491296A CN2011103854043A CN201110385404A CN102491296A CN 102491296 A CN102491296 A CN 102491296A CN 2011103854043 A CN2011103854043 A CN 2011103854043A CN 201110385404 A CN201110385404 A CN 201110385404A CN 102491296 A CN102491296 A CN 102491296A
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Abstract
The invention discloses a method for recovering and using machine sealing water during the monoammonium phosphate production, which comprises a cycle water tank and a bench of circulating pump used for collecting and supplying machine sealing water; the machine sealing water discharged by one or more pumps from a dilute acid transfer pump, a reaction circulating pump, a double-effect circulating pump, a first-effect circulating pump, a tail gas washing pump, a washing displacement pump, a double-effect condensed water circulating pump and a first-effect condensed water transfer pump; water in the cycle water tank is taken as machine sealing water and returned by the circulating pump to the above pumps, the investment is small, a lot of process water can be saved, processing amount of sewage can be also minimized and the production cost can be reduced.
Description
Technical field
The present invention relates to a kind of monoammonium phosphate produce in the machine water shutoff recoverying and utilizing method of pump and blower fan.
Background technology
Adopt slurry concentrated process to produce in the device of monoammonium phosphate and need use multiple pump and blower fan; A lot of pumps need be used machine water shutoff cooling with blower fan, such as diluted acid transferpump, reaction cycle pump, two imitate recycle pumps, imitate recycle pump, washing tail gas pump, wash displacement pump, water circulating pump, water of condensation transferpump, be used to carry slip three cylinder high-pressure oil cooling pumps, be used to carry three cylinder HPPs, drying drum blower fan and the hot air blower of slip.The whole adopting process water of machine water shutoff water coolant, and the machine water shutoff that cooler is honored as a queen directly effluxed, and reaches 30000m such as the monoammonium phosphate production line process water that water shutoff effluxed as machine in a year of producing 120kt per year
3More than, not only cause the bigger waste of process water, and increased follow-up sewage load, increased cost of sewage disposal.
Summary of the invention
The objective of the invention is to the weak point that exists in the prior art, machine water shutoff recoverying and utilizing method in a kind of monoammonium phosphate production is provided, can reduce the outer discharge capacity of machine water shutoff, reduce consumption, reduce production costs process water.
The inventor finds in production practice: in the monoammonium phosphate production line; Except the only a few pump such as the three cylinder HPPs that are used to carry slip efflux the water quality of machine water shutoff contaminated; The machine water shutoff that most pumps and blower fan efflux does not have contaminated; Can be used as the machine water shutoff and reuse, can reduce consumption and the outer discharge capacity of machine water shutoff process water.
The present invention has adopted following technical scheme: a circulating water channel and a recycle pump that is used for collecting with the dispenser device water shutoff is set; The machine water shutoff of diluted acid transferpump, reaction cycle pump, two effect recycle pumps, being imitated one or more pump discharge in recycle pump, washing tail gas pump, washing displacement pump, two effect water of condensation recycle pumps and the effect water of condensation transferpump is collected in the circulating water channel with pipeline; With recycle pump with the water in the circulating water channel as the machine water shutoff return and deliver to above-mentioned each pump.
Qualified each the pump machine water shutoff of water quality does not need directly to efflux through recycling, only discharging regularly again after repeatedly recycling, thereby do not consume process water, do not increase sewage load.
Though the drying drum blower fan of the oil cooler pump of slip transferpump, hotblast stove and the machine water shutoff that hot air blower effluxes do not have contaminated; Can recycle; Because the machine water shutoff has certain requirement to water temperature, water temperature can not too high (about 40 ℃), too highly can not reach cooling purpose.Therefore, preferred version of the present invention is: the machine water shutoff that the machine water shutoff rising pipe of the drying drum blower fan of the oil cooler pump of slip transferpump, hotblast stove and hot air blower is discharged is supplemented in the circulating water channel, and the effect of certain reduction water temperature is arranged simultaneously.
In like manner; The machine water shutoff that the slip transferpump effluxes is contaminated; Not can be recycled; But the machine water shutoff of its use there is not requirement to water temperature, can use water in the circulating water channel as its machine water shutoff, can consume by the oil cooler pump of slip transferpump, the drying drum blower fan and the hot air blower of hotblast stove and bring the water yield unnecessary in the recycle system into.
Can know by technique scheme; The present invention only need set up a circulating water channel and a recycle pump; Can realize that disposable input cost is little with the discarded qualified machine water shutoff recycling that effluxes originally, and with the machine water shutoff that must consume with the part pump of process water and the qualified machine water shutoff of blower fan, additional contaminated the effluxing of part; Process water consumption and externally discharged waste water amount that the water shutoff of whole production line machine consumes greatly reduce; Not only can practice thrift a large amount of process waters, but also reduce sewage load, can reduce production costs.Monoammonium phosphate production line to produce 120kt per year is an example, and 1 year can reduce the outer discharge capacity of process water and reach 30000m
3More than, the about 32000m of annual water saving
3, be roughly equal to 48000 yuan of Renminbi, the annual 32000m that reduces
3Cost of sewage disposal can be obtained than remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is another embodiment of the present invention process flow sheet.
Embodiment
As shown in Figure 1; The present invention includes circulating water channel 1, recycle pump 2, water main 4 and return main 5; Recycle pump 2 is delivered to the recirculated water in the circulating water channel 1 among the water main 4 through pipeline 3, and the machine water shutoff that each pump is discharged is collected through return main 5 and is back in the circulating water channel 1 through pipeline 6.
The machine water shutoff water-in and water-out pipeline that diluted acid transferpump 9, reaction cycle pump 10, two are imitated recycle pump 11, an effect recycle pump 12, washing tail gas pump 14, washing displacement pump 15, two effect water of condensation recycle pumps 16 and an effect water of condensation transferpump 17 communicates with water main 4, return main 5 respectively.
Recirculated water replenishes pipe 7 one ends and communicates with process water pipeline 8; The other end divides two-way respectively to the oil cooler pump 18 and drying drum blower fan 19, hot air blower 20 dispenser device water shutoffs of slip transferpump, and oil cooler pump 18 is supplemented in the circulating water channel 1 through return main 5 and pipeline 6 with the machine water shutoff of drying drum blower fan 19, hot air blower 20 drainings.Wherein the machine water shutoff pipeline of drying drum blower fan 19, hot air blower 20 is connected in series, and drying drum blower fan 19 and hot air blower 20 are passed through in the machine water shutoff successively among the figure, also can flow to drying drum blower fan 19 from hot blast gas blower 20 and flow out to return main 5.
Carry the machine water shutoff water inlet pipe of the HPP 13 of slip to communicate with water main 4, the machine water shutoff of its discharge gets into Sewage treatment systems as the directly outer trench 21 that drains into of sewage.
Diluted acid transferpump 9, reaction cycle pump 10, two are imitated recycle pump 11, an effect recycle pump 12, washing tail gas pump 14, washing displacement pump 15, two effect water of condensation recycle pumps 16 and an effect water of condensation transferpump 17 according to the distance distance; Its machine water shutoff pipeline can be two or many series connections of pumps connections, can economize on pipe.
Its principle of work is following: recycle pump 2 is delivered to the recirculated water in the circulating water channel 1 among the water main 4 through pipeline 3; Flowing to diluted acid transferpump 9, reaction cycle pump 10, two again imitates recycle pumps 11, and imitates recycle pump 12, slip transferpump 13, washing tail gas pump 14, washing displacement pump 15, two and imitate water of condensation recycle pumps 16 and and imitate water of condensation transferpump 17; Except that the machine water shutoff of slip transferpump 13, be discharged to outside the trench 21, the machine water shutoff that all the other each pumps are discharged is collected through return main 5 and is back in the circulating water channel 1 through pipeline 6.Process water flow to return main's 5 entering recycle systems from drying drum blower fan 19, the hot air blower 20 that process water pipeline 8, recirculated water replenish pipeline 7 and oil cooler pump 18 and hotblast stove.
As shown in Figure 2, whole flow process and Fig. 1 are basic identical, because two effect recycle pumps 11 and are imitated recycle pump 12 close together, the water temperature of sealing for cooler can reach standard, therefore can connect.Equally, washing tail gas pump 14 also is the same can the series connection with washing displacement pump 15, still can not influence the cooling performance of machine envelope, can also save pipeline.
This example is for producing the monoammonium phosphate production line of 120kt per year, and the process water of 12 pumps and the water shutoffs of blower fan machine consumption in 1 year is 40000m only
3, 1 year can reduce the outer discharge capacity of process water and reach 32000m
3More than, the about 32000m of annual water saving
3, be roughly equal to 48000 yuan of Renminbi, the annual 32000m that reduces
3Cost of sewage disposal can be obtained than remarkable economic efficiency and social benefit.
Claims (3)
1. machine water shutoff recoverying and utilizing method during monoammonium phosphate is produced is characterized in that: a circulating water channel (1) and a recycle pump (2) that is used for collecting with the dispenser device water shutoff is set; The machine water shutoff of diluted acid transferpump (9), reaction cycle pump (10), two effect recycle pumps (11), being imitated one or more pump discharge in recycle pump (12), washing tail gas pump (14), washing displacement pump (15), two effect water of condensation recycle pumps (16) and the effect water of condensation transferpump (17) is collected in the circulating water channel (1) with pipeline; With recycle pump (2) with the water in the circulating water channel (1) as the machine water shutoff return and deliver to above-mentioned each pump.
2. machine water shutoff recoverying and utilizing method during monoammonium phosphate according to claim 1 is produced is characterized in that: the machine water shutoff of the machine water shutoff rising pipe discharge of the drying drum blower fan (19) of the oil cooler pump (18) of slip transferpump, hotblast stove and hot air blower (20) is supplemented in the circulating water channel (1).
3. machine water shutoff recoverying and utilizing method during monoammonium phosphate according to claim 2 is produced, it is characterized in that: the machine water shutoff of slip transferpump (13) is by the water supply in the circulating water channel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103854043A CN102491296A (en) | 2011-11-28 | 2011-11-28 | Method for recovering and using machine sealing water during monoammonium phosphate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103854043A CN102491296A (en) | 2011-11-28 | 2011-11-28 | Method for recovering and using machine sealing water during monoammonium phosphate production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102491296A true CN102491296A (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103854043A Pending CN102491296A (en) | 2011-11-28 | 2011-11-28 | Method for recovering and using machine sealing water during monoammonium phosphate production |
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| CN (1) | CN102491296A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044814A (en) * | 2016-07-15 | 2016-10-26 | 广西田东锦鑫化工有限公司 | Mechanical seal water circulation system for alumina decomposition system and mechanical seal water circulation method |
| CN114534455A (en) * | 2022-02-11 | 2022-05-27 | 天津渤化永利化工股份有限公司 | Method for recycling machine-sealed water in polyformaldehyde device |
-
2011
- 2011-11-28 CN CN2011103854043A patent/CN102491296A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 曹新峰等: "离子膜法烧碱生产中废水回收利用", 《氯碱工业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044814A (en) * | 2016-07-15 | 2016-10-26 | 广西田东锦鑫化工有限公司 | Mechanical seal water circulation system for alumina decomposition system and mechanical seal water circulation method |
| CN114534455A (en) * | 2022-02-11 | 2022-05-27 | 天津渤化永利化工股份有限公司 | Method for recycling machine-sealed water in polyformaldehyde device |
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Application publication date: 20120613 |