CN106395860A - Ammonia gas water washing evaporative crystallization recovery system - Google Patents
Ammonia gas water washing evaporative crystallization recovery system Download PDFInfo
- Publication number
- CN106395860A CN106395860A CN201610748931.9A CN201610748931A CN106395860A CN 106395860 A CN106395860 A CN 106395860A CN 201610748931 A CN201610748931 A CN 201610748931A CN 106395860 A CN106395860 A CN 106395860A
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- CN
- China
- Prior art keywords
- pump
- washing
- mvr
- slurry
- discharging
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/242—Preparation from ammonia and sulfuric acid or sulfur trioxide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to an ammonia gas water washing evaporative crystallization recovery system. The system consists of a washing tower, a washing circulating pump, a washing discharge pump, a slurry buffer tank, a buffer transfer tank, a preheater, a slurry tank, a preheating transfer pump, an MVR evaporator, a compressor, a heat exchanger and a forced circulation pump. The washing tower is connected to an ammonia gas feed pipe and a sulfuric acid feed pipe, the washing circulating pump is connected between the bottom and upper part of the washing tower externally, the washing tower bottom is connected to the slurry buffer tank through the washing discharge pump, the slurry buffer tank is connected to a thermal path of the preheater through the buffer transfer tank and then is connected to the slurry tank, the slurry tank is connected to the MVR evaporator through the preheating transfer pump, the MVR evaporator is externally connected to the forced circulation pump and a thermal path of the heat exchanger from the bottom up and then returns to the MVR evaporator, the top of the MVR evaporator is connected to another thermal path of the preheater through the compressor and another thermal path of the heat exchanger, and the material is discharged from the bottom of the MVR evaporator.
Description
Technical field
The present invention relates to a kind of Ammonia recovery system, specifically a kind of ammonia washing evaporative crystallization recovery system.
Background technology
For meeting environment protection emission requirement, the ammonia hydrolyzing generation afterwards can not directly discharge, and conventionally employed directly washing is formed
The method of ammoniacal liquor is absorbed, but the value of ammoniacal liquor is not high in Chemical Manufacture, is unfavorable for improving environmental protection and energy saving effect.
Content of the invention
For above-mentioned deficiency, the invention provides a kind of structure simple, can high efficiente callback, energy-conserving and environment-protective, reducing energy consumption
The quiet recovery system of ammonia washing evaporation.
The technical solution used in the present invention is：A kind of ammonia washing evaporative crystallization recovery system it is characterised in that：Including water
Wash tower, water washing cycles pump, washing discharging pump, slurry surge tank, buffering delivery pump, preheater, slurry tank, preheating delivery pump, MVR
Evaporimeter, compressor, heat exchanger and forced circulation pump, water scrubber connects ammonia feed pipe and sulfuric acid feed pipe, washing tower bottom and
External water washing cycles pump between top, washing tower bottom connects slurry separator tube through washing discharging pump, and slurry surge tank is buffered
Delivery pump connects after connecting the hot journey of preheater one and connects MVR evaporimeter to slurry tank, the preheated delivery pump of slurry tank, and MVR evaporates
External forced circulation pump and the hot journey of heat exchanger one are back to MVR evaporimeter to device from the bottom to top, MVR evaporimeter top through compressor,
Another hot journey of heat exchanger connects another hot journey of preheater, MVR base of evaporator discharging.
Also include discharging pump, centrifuge and packing machine, MVR base of evaporator discharging connects centrifuge, centrifugation through discharging pump
Machine solids exit connects packing machine.
Described centrifuge liquid discharging connects MVR evaporimeter.
Described preheating delivery pump shares MVR base of evaporator discharging charging.
The ammonia hydrolyzing generation afterwards is absorbed generation ammonium sulfate by sulfuric acid solution in water scrubber.In water-washing process, washing
Circulating pump is constantly transported to tower top sulfuric acid solution from bottom of towe and is sprayed.With drip washing carry out ammonium sulfate concentration continuous
Raise, when reaching finite concentration, ammonium sulfate is plucked out of and is pumped into expecting surge tank through washing discharging.From washing
The ammonium sulfate of tower through being pumped into slurry surge tank, then again by buffering the preheated device of delivery pump, slurry tank, pre- heated conveying
MVR evaporimeter got to by pump, adopts steam to heat, ammonium sulfate evaporates in MVR evaporimeter, reaches saturation solubility when initial
After crystallize, the material of MVR evaporimeter bottom is constantly transported to heat exchanger by forced circulation pump, and in MVR evaporimeter, steam is by compressing
Machine produces indirect steam and is transported to heat exchanger, and through the hot Cheng Huanre of heat exchanger two, the material heating to forced circulation pump conveying returns
MVR evaporimeter, improves evaporator effectiveness.Heat exchanger condensate liquid be delivered to preheater enter MVR evaporimeter before material carry out pre-
Heat, the water after heat exchange is as the secondary utilization of fresh water (FW).After evaporative crystallization, material goes centrifuge to obtain ammonia sulfate crystal, place
Reason ammonia generates ammonium sulfate byproduct simultaneously, improves corporate economy's benefit while high efficiente callback, energy-saving and environment friendly.
Produce indirect steam using high energy efficiency vapour compression machine Compression Evaporation, convert electrical current into into heat energy, improve secondary steaming
The enthalpy of vapour, the indirect steam entrance heat exchanger being enhanced heat energy carries out heating Matter Transfer in MVR evaporimeter, to reach circulation
Using the existing heat energy of indirect steam, realize the purpose of evaporative crystallization by evaporimeter self-loopa.Evaporator operation pressure is
Negative pressure, to reduce the boiling point of regeneration steam, reducing energy consumption with this.
Brief description
Fig. 1 is present configuration schematic diagram.
In figure：Water scrubber 1, water washing cycles pump 2, washing discharging pump 3, slurry surge tank 4, buffering delivery pump 5, preheater 6,
Slurry tank 7, preheating delivery pump 8, MVR evaporimeter 9, compressor 10, heat exchanger 11, forced circulation pump 12, discharging pump 13, centrifuge
14th, packing machine 15.
Specific embodiment
It is described further below in conjunction with drawings and Examples.
Shown in Fig. 1：A kind of ammonia washing evaporative crystallization recovery system includes water scrubber 1, water washing cycles pump 2, washing discharging
Pump 3, slurry surge tank 4, buffering delivery pump 5, preheater 6, slurry tank 7, preheating delivery pump 8, MVR evaporimeter 9, compressor 10,
Heat exchanger 11, forced circulation pump 12, discharging pump 13, centrifuge 14 and packing machine 15.Water scrubber 1 connects ammonia feed pipe and sulfuric acid enters
Expects pipe, external water washing cycles pump 2 between washing tower bottom and top, washing tower bottom connects slurry buffering through washing discharging pump 3
Pipe 4, the buffered delivery pump 5 of slurry surge tank 4 connects preheated defeated to slurry tank 7, slurry tank 7 after connecting the hot journey of preheater 6 one
Pump 8 is sent to connect MVR evaporimeter 9, external forced circulation pump 12 and the hot journey of heat exchanger 11 1 are back to MVR evaporimeter 9 from the bottom to top
MVR evaporimeter 9, MVR evaporimeter top connects another hot journey of preheater 6 through compressor 10, another hot journey of heat exchanger 11, and MVR steams
Send out device 9 bottom discharge, preheating delivery pump shares MVR base of evaporator discharging charging, and MVR base of evaporator discharging is through discharging pump 13
Connect centrifuge 14, centrifuge solids exit connects packing machine 15, centrifuge liquid discharging connects MVR evaporimeter.
When implementing, material preheater can be supplied using multigroup water scrubber, the cooperation of slurry surge tank, to improve material production effect
Rate.
Claims (4)
1. a kind of ammonia washing evaporative crystallization recovery system it is characterised in that：Including water scrubber, water washing cycles pump, washing discharging
Pump, slurry surge tank, buffering delivery pump, preheater, slurry tank, preheating delivery pump, MVR evaporimeter, compressor, heat exchanger and strong
Circulating pump processed, water scrubber connects ammonia feed pipe and sulfuric acid feed pipe, external water washing cycles pump between washing tower bottom and top, water
Wash tower bottom and connect slurry separator tube through washing discharging pump, the buffered delivery pump of slurry surge tank connects after connecting the hot journey of preheater one
Be connected to slurry tank, the preheated delivery pump of slurry tank connect MVR evaporimeter, MVR evaporimeter from the bottom to top external forced circulation pump and
The hot journey of heat exchanger one is back to MVR evaporimeter, and MVR evaporimeter top is another through compressor, another hot journey connection preheater of heat exchanger
One hot journey, MVR base of evaporator discharging.
2. a kind of ammonia according to claim 1 washes evaporative crystallization recovery system, it is characterized in that：Also include discharging pump,
Centrifuge and packing machine, MVR base of evaporator discharging connects centrifuge through discharging pump, and centrifuge solids exit connects packing machine.
3. a kind of ammonia according to claim 2 washes evaporative crystallization recovery system, it is characterized in that：Described centrifuge liquid
Discharging connects MVR evaporimeter.
4. a kind of ammonia washing evaporative crystallization recovery system according to claim 1 or 2 or 3, is characterized in that：Described preheating
Delivery pump shares MVR base of evaporator discharging charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748931.9A CN106395860A (en) | 2016-08-30 | 2016-08-30 | Ammonia gas water washing evaporative crystallization recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748931.9A CN106395860A (en) | 2016-08-30 | 2016-08-30 | Ammonia gas water washing evaporative crystallization recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106395860A true CN106395860A (en) | 2017-02-15 |
Family
ID=58003430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748931.9A Pending CN106395860A (en) | 2016-08-30 | 2016-08-30 | Ammonia gas water washing evaporative crystallization recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106395860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837551A (en) * | 2018-07-28 | 2018-11-20 | 湖南懋天世纪新材料有限公司 | A kind of ultra-fine ammonium paratungstate evaporated crystallization device and method for crystallising |
| CN109319998A (en) * | 2018-10-29 | 2019-02-12 | 广州新普利节能环保科技有限公司 | A kind of the near-zero release processing system and technique of ternary precursor material production waste water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447860A (en) * | 2014-12-01 | 2015-03-25 | 江西金龙化工有限公司 | Technological method for producing glyphosate and co-producing ammonium sulfate with glycine method |
| CN204384885U (en) * | 2015-01-14 | 2015-06-10 | 河北江盛环保科技有限公司 | Waste Sulfuric Acid waste water produces the treatment system of ammonium sulfate |
| CN205288056U (en) * | 2015-12-07 | 2016-06-08 | 浙江希尔化工股份有限公司 | Useless ammonia processing system of propane diamine production line |
| CN205360984U (en) * | 2015-12-07 | 2016-07-06 | 浙江希尔化工股份有限公司 | Waste discharge production line of ammonia preparation ammonium sulfate crystallization of utilization |
-
2016
- 2016-08-30 CN CN201610748931.9A patent/CN106395860A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447860A (en) * | 2014-12-01 | 2015-03-25 | 江西金龙化工有限公司 | Technological method for producing glyphosate and co-producing ammonium sulfate with glycine method |
| CN204384885U (en) * | 2015-01-14 | 2015-06-10 | 河北江盛环保科技有限公司 | Waste Sulfuric Acid waste water produces the treatment system of ammonium sulfate |
| CN205288056U (en) * | 2015-12-07 | 2016-06-08 | 浙江希尔化工股份有限公司 | Useless ammonia processing system of propane diamine production line |
| CN205360984U (en) * | 2015-12-07 | 2016-07-06 | 浙江希尔化工股份有限公司 | Waste discharge production line of ammonia preparation ammonium sulfate crystallization of utilization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837551A (en) * | 2018-07-28 | 2018-11-20 | 湖南懋天世纪新材料有限公司 | A kind of ultra-fine ammonium paratungstate evaporated crystallization device and method for crystallising |
| CN108837551B (en) * | 2018-07-28 | 2024-04-02 | 湖南懋天世纪新材料有限公司 | Superfine ammonium paratungstate evaporation crystallization device and crystallization method |
| CN109319998A (en) * | 2018-10-29 | 2019-02-12 | 广州新普利节能环保科技有限公司 | A kind of the near-zero release processing system and technique of ternary precursor material production waste water |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |