CN1422806A - Ammonia sulfate production method - Google Patents
Ammonia sulfate production method Download PDFInfo
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- CN1422806A CN1422806A CN 01131599 CN01131599A CN1422806A CN 1422806 A CN1422806 A CN 1422806A CN 01131599 CN01131599 CN 01131599 CN 01131599 A CN01131599 A CN 01131599A CN 1422806 A CN1422806 A CN 1422806A
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- crystallizer
- well heater
- temperature
- stiff device
- effect evaporator
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Abstract
The invention discloses an ammonium sulphate producing method. It features: the ammonium sulphate solution circulates to and fro in second-effect heater, second-effect evaporator and crystallization pot, when the crystal ratio of solid to liquid reaches 30-40%, is sent by pump stiffening instrument, the flooding clean liquid on top of the stiffening instrument returning to the crystallization pot, the material under which going to separation equipment and drying device, and processed by repacking procedure to obtain ammonium sulphate crystal, entry temperature of second-effect heater 74-79 C degree, that of crystallization pot 60-62 degree.
Description
Technical field
The present invention relates to a kind of ammonium sulfate preparation method.
Background technology
Ammonium sulfate production is to utilize the by product ammoniumsulphate soln of upstream to be sent to one from storage tank to imitate the ammonia sulfate crystal that obtains after operations such as well heater, 1st effective evaporator, two effect well heaters, 2nd effect evaporator, crystallizer, separating device, drying plant are handled.In process of production, often occur runner being stopped up because of evaporation and crystallization system equipment wall adheres to crystallisate, circulation reduces, cause building to wave, therefore must once dilute every 2～3 days, thereby imitate to evaporate and make the higher adjusting water temperature of sending to the upstream of ammoniumsulphate soln temperature be difficult to control etc. to influence the phenomenon of device ordinary production because of one simultaneously.
By retrieval, find no and imitate to solve that evaporation and crystallization system equipment wall adheres to crystallisate and runner is stopped up in the ammonium sulfate production process, the unmanageable method of adjusting water temperature that circulation reduces and sends to the upstream.
Summary of the invention
The purpose of this invention is to provide a kind of ammonium sulfate preparation method.
The present invention realizes like this, the ammoniumsulphate soln that concentration 41%, temperature are 30 ℃～45 ℃ directly is transported to crystallizer from storage tank, the overflow clear liquid on crystallizer top is imitated well heater, 2nd effect evaporator again to the crystallizer reciprocation cycle through recycle pump, two, when solid-liquid brilliant when reaching 30%～40% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is packed at last down to separating device, drying plant.
The two shell side thermal source media of imitating well heater are water, 74 ℃～79 ℃ of temperature ins, and 62 ℃～64 ℃ of temperature outs, tube side is an ammoniumsulphate soln, the crystallizer temperature is 60 ℃～62 ℃.
Positively effect of the present invention is to have reduced one and imitates a heating and an effect evaporization process, saved the energy, eliminated because of the evaporation and crystallization system crystallization makes runner and stopped up, circulation reduces, cause building to wave, the phenomenon that must once dilute every 2～3 days has been eliminated simultaneously because of one and has been imitated heating and and imitate to evaporate and make the higher unmanageable phenomenon of adjusting water temperature sent to the production upstream device of causing of ammoniumsulphate soln temperature, increases by 75 hours effective workings in every month.
The ammoniumsulphate soln that embodiment embodiment 1 concentration 41%, temperature are 30 ℃ directly is transported to crystallizer from storage tank, the overflow clear liquid on crystallizer top is imitated well heater, 2nd effect evaporator and crystallizer reciprocation cycle through recycle pump, two, when solid-liquid brilliant when reaching 30% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is packed at last down to separating device, drying plant.The two shell side thermal source media of imitating well heater are water, 74 ℃ of temperature ins, and 62 ℃ of temperature outs, tube side is an ammoniumsulphate soln, the crystallizer temperature is 60 ℃.The ammoniumsulphate soln that embodiment 2 concentration 41%, temperature are 35 ℃ directly is transported to crystallizer from storage tank, the overflow clear liquid on crystallizer top is imitated well heater, 2nd effect evaporator and crystallizer reciprocation cycle through recycle pump, two, when solid-liquid brilliant when reaching 35% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is packed at last down to separating device, drying plant.The two shell side thermal source media of imitating well heater are water, 76 ℃ of temperature ins, and 63 ℃ of temperature outs, tube side is an ammoniumsulphate soln, the crystallizer temperature is 61 ℃.The ammoniumsulphate soln that embodiment 3 concentration 41%, temperature are 40 ℃ directly is transported to crystallizer from storage tank, the overflow clear liquid on crystallizer top is imitated well heater, 2nd effect evaporator and crystallizer reciprocation cycle through recycle pump, two, when solid-liquid brilliant when reaching 40% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is packed at last down to separating device, drying plant.The two shell side thermal source media of imitating well heater are water, 79 ℃ of temperature ins, and 64 ℃ of temperature outs, tube side is an ammoniumsulphate soln, the crystallizer temperature is 62 ℃.
Claims (2)
1. ammonium sulfate preparation method, ammoniumsulphate soln is imitated well heater by one, 1st effective evaporator, two imitate well heater, 2nd effect evaporator, crystallizer, imitate well heater two, 2nd effect evaporator and crystallizer reciprocation cycle, when solid-liquid brilliant when reaching 30%～40% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is down to separating device, drying plant, packaging process obtains ammonia sulfate crystal after handling again, the two shell side temperature ins of imitating well heater are 70 ℃～73 ℃, the crystallizer temperature is 63 ℃～65 ℃, it is characterized in that: ammoniumsulphate soln is imitated well heater by two, 2nd effect evaporator, crystallizer, imitate well heater two, 2nd effect evaporator and crystallizer reciprocation cycle, when solid-liquid brilliant when reaching 30%～40% with being pumped to the stiff device, the overflow clear liquid on stiff device top returns crystallizer, the material of stiff device bottom is down to separating device, drying plant, operation such as packing obtains ammonia sulfate crystal after handling again, the two shell side temperature ins of imitating well heater are 74 ℃～79 ℃, and the crystallizer temperature is 60 ℃～62 ℃.
2. a kind of ammonium sulfate preparation method according to claim 1 is characterized in that: the two shell side thermal source media of imitating well heater are water, and tube side is an ammoniumsulphate soln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131599 CN1422806A (en) | 2001-12-07 | 2001-12-07 | Ammonia sulfate production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131599 CN1422806A (en) | 2001-12-07 | 2001-12-07 | Ammonia sulfate production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1422806A true CN1422806A (en) | 2003-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01131599 Pending CN1422806A (en) | 2001-12-07 | 2001-12-07 | Ammonia sulfate production method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1422806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537108A (en) * | 2013-10-23 | 2014-01-29 | 中冶长天国际工程有限责任公司 | Method for evaporating ammonium sulfate solution containing ammonium sulfite and system thereof |
| CN106145450A (en) * | 2016-08-09 | 2016-11-23 | 刘荣臣 | Ammonium sulfate crystallization mother liquor waste water recycling processing method in MMA production technology |
| CN111408157A (en) * | 2020-04-14 | 2020-07-14 | 中石化南京工程有限公司 | Ammonium sulfate crystallization method and device thereof |
| CN111530119A (en) * | 2020-04-14 | 2020-08-14 | 中石化南京工程有限公司 | Tandem ammonium sulfate crystallization method and device thereof |
-
2001
- 2001-12-07 CN CN 01131599 patent/CN1422806A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537108A (en) * | 2013-10-23 | 2014-01-29 | 中冶长天国际工程有限责任公司 | Method for evaporating ammonium sulfate solution containing ammonium sulfite and system thereof |
| CN103537108B (en) * | 2013-10-23 | 2015-07-29 | 中冶长天国际工程有限责任公司 | A kind of evaporation contains method and the system thereof of the ammonium sulfate of ammonium sulfite |
| CN106145450A (en) * | 2016-08-09 | 2016-11-23 | 刘荣臣 | Ammonium sulfate crystallization mother liquor waste water recycling processing method in MMA production technology |
| CN106145450B (en) * | 2016-08-09 | 2019-07-26 | 刘荣臣 | The clear mother liquor waste water recycling processing method of ammonium sulfate crystallization in MMA production technology |
| CN111408157A (en) * | 2020-04-14 | 2020-07-14 | 中石化南京工程有限公司 | Ammonium sulfate crystallization method and device thereof |
| CN111530119A (en) * | 2020-04-14 | 2020-08-14 | 中石化南京工程有限公司 | Tandem ammonium sulfate crystallization method and device thereof |
| CN111530119B (en) * | 2020-04-14 | 2021-09-14 | 中石化南京工程有限公司 | Tandem ammonium sulfate crystallization method and device thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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