CN105457449A - Ammonium phosphate tail gas washing system and washing technology - Google Patents
Ammonium phosphate tail gas washing system and washing technology Download PDFInfo
- Publication number
- CN105457449A CN105457449A CN201510923402.3A CN201510923402A CN105457449A CN 105457449 A CN105457449 A CN 105457449A CN 201510923402 A CN201510923402 A CN 201510923402A CN 105457449 A CN105457449 A CN 105457449A
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- Prior art keywords
- scrubbing tower
- washing
- gas
- communicated
- phosphorus ammonium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1406—Multiple stage absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2027—Fluorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to the technical field of fertilizer production, in particular to an ammonium phosphate tail gas washing system and washing technology. The washing system comprises a gas washer, a first washing tower and a second washing tower. A gas outlet of the gas washer is communicated with a gas inlet of the second washing tower through the first washing tower. A water outlet of the second washing tower is communicated with a water inlet of the gas washer through the first washing tower. According to the ammonium phosphate tail gas washing system, ammonium phosphate tail gas sequentially passes through the gas washer, the first washing tower and the second washing tower to be washed. Washing water of the second washing tower is circulated into the first washing tower to be reutilized, and washing water of the first washing tower is circulated to the gas washer to be reutilized. The system is remarkable in effect of purifying and washing ammonium phosphate tail gas, and environmentally friendly, and can fully recycle water resources, and save energy.
Description
Technical field
The present invention relates to technical field of fertilizer production, especially relate to a kind of phosphorus ammonium vent gas washing system and washing process.
Background technology
In field of fertilizer production, be obtained phosphorus ammonium, first prepare phosphoric acid by rock phosphate in powder and the concentrated sulfuric acid.In this course, have a large amount of fluorinated tail gas generate, these tail gas have to pass through washing up to standard after could discharge.At present, be scrubber washing to the main process of phosphorus ammonium tail gas, but need to consume a large amount of water in this washing process, cause the waste of water resource, be unfavorable for energy-conserving and environment-protective.
Summary of the invention
The object of the present invention is to provide a kind of phosphorus ammonium vent gas washing system, to solve the technical problems such as the water resource waste that exists in prior art.
Phosphorus ammonium vent gas washing system provided by the invention, comprises Drechsel system, the first scrubbing tower and the second scrubbing tower; The gas outlet of Drechsel system is communicated with the air inlet of the second scrubbing tower by the first scrubbing tower; The delivery port of the second scrubbing tower is communicated with the water inlet of Drechsel system by the first scrubbing tower.
Further, phosphorus ammonium vent gas washing system also comprises cyclone demister, and the gas outlet of the first scrubbing tower is communicated with by the air inlet of cyclone demister with the second scrubbing tower, and cyclone demister is used for making gas-liquid separation; The delivery port of cyclone demister is communicated with the water inlet of the second scrubbing tower.
Further, phosphorus ammonium vent gas washing system also comprises the first tank, and the delivery port of the second scrubbing tower is communicated with the water inlet of the first scrubbing tower by the first tank.
Further, phosphorus ammonium vent gas washing system also comprises the second tank, and the delivery port of cyclone demister is communicated with the water inlet of the second scrubbing tower by the second tank.
Further, phosphorus ammonium vent gas washing system also comprises air-introduced machine, and the gas outlet of cyclone demister is communicated with by the air inlet of air-introduced machine with the second scrubbing tower, and air-introduced machine is for accelerating the flowing of gas.
The present invention also provides a kind of phosphorus ammonium washing tail gas technique, it is characterized in that, phosphorus ammonium tail gas is disposed in air through the washing of Drechsel system, the first scrubbing tower, cyclone demister and the second scrubbing tower successively; The washings of the second scrubbing tower are circulated to the first scrubbing tower, and the washings of the first scrubbing tower are circulated to Drechsel system; The isolated water of cyclone demister enters in the second scrubbing tower.
Phosphorus ammonium vent gas washing system provided by the invention, phosphorus ammonium tail gas washs through Drechsel system, the first scrubbing tower and the second scrubbing tower successively, the washings of the second scrubbing tower are circulated in the first scrubbing tower and again utilize simultaneously, the washings of the first scrubbing tower are circulated in Drechsel system and again utilize, the Be very effective of this system not only purification and washing phosphorus ammonium tail gas, and fully can recycle water resource, economical environment-protective.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the phosphorus ammonium vent gas washing system that Fig. 1 provides for the embodiment of the present invention.
Reference numeral:
1-Drechsel system; 2-first scrubbing tower; 3-second scrubbing tower;
4-cyclone demister; 5-first tank; 6-second tank;
7-air-introduced machine.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The schematic diagram of the phosphorus ammonium vent gas washing system that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the phosphorus ammonium vent gas washing system that the present embodiment provides, comprises Drechsel system 1, first scrubbing tower 2 and the second scrubbing tower 3; The gas outlet of Drechsel system 1 is communicated with the air inlet of the second scrubbing tower 3 by the first scrubbing tower 2; The delivery port of the second scrubbing tower 3 is communicated with the water inlet of Drechsel system 1 by the first scrubbing tower 2.
As shown in Figure 1, the direction of arrow represents exhaust gas flow direction.Phosphorus ammonium tail gas is mainly fluorinated tail gas, i.e. fluorine gas (F in figure
2), successively through Drechsel system 1, first scrubbing tower 2, second scrubbing tower 3, through the washing, purifying of tri-layer, reach emission request, finally discharged by the gas outlet of the second scrubbing tower 3.
In this washing system, the circulation of washings is such: the washings of the second scrubbing tower 3 are circulated in the first scrubbing tower 2 and use, the washings of the first scrubbing tower 2 are circulated in Drechsel system 1 and use, the washings of Drechsel system 1 are owing to being the water washing initial phosphorus ammonium tail gas, again should not utilize, directly discharge.
On the basis of above-described embodiment, further, phosphorus ammonium vent gas washing system also comprises cyclone demister 4, and the gas outlet of the first scrubbing tower 2 is communicated with the air inlet of the second scrubbing tower 3 by cyclone demister 4, and cyclone demister 4 is for making gas-liquid separation; The delivery port of cyclone demister 4 is communicated with the water inlet of the second scrubbing tower 3.
See Fig. 1, phosphorus ammonium tail gas after the washing of Drechsel system 1, first scrubbing tower 2, is now the gas of gas-liquid coexisting state, utilizes cyclone demister 4 to make gas-liquid separation successively, gas flow second scrubbing tower 3, is utilized in liquid-circulating to the second scrubbing tower 3 again.
On the basis of above-described embodiment, further, the delivery port that phosphorus ammonium vent gas washing system also comprises the first tank 5, second scrubbing tower 3 is communicated with the water inlet of the first scrubbing tower 2 by the first tank 5.
Can be supplemented by the first tank 5 when the washings of the first scrubbing tower 2 are not enough.
On the basis of above-described embodiment, further, phosphorus ammonium vent gas washing system also comprises the second tank 6, and the delivery port of cyclone demister 4 is communicated with the water inlet of the second scrubbing tower 3 by the second tank 6.
Can be supplemented by the second tank 6 when the washings of the second scrubbing tower 3 are not enough.
On the basis of above-described embodiment, further, phosphorus ammonium vent gas washing system also comprises air-introduced machine 7, and the gas outlet of cyclone demister 4 is communicated with the air inlet of the second scrubbing tower 3 by air-introduced machine 7, and air-introduced machine 7 is for accelerating the flowing of gas.
The embodiment of the present invention additionally provides a kind of phosphorus ammonium washing tail gas technique, it is characterized in that, phosphorus ammonium tail gas is disposed in air through the washing of Drechsel system 1, first scrubbing tower 2, cyclone demister 4 and the second scrubbing tower 3 successively;
The washings that the washings of the second scrubbing tower 3 are circulated to the first scrubbing tower 2, first scrubbing tower 2 are circulated to Drechsel system 1; The isolated water of cyclone demister 4 enters in the second scrubbing tower 3.
See Fig. 1, phosphorus ammonium tail gas is successively through three washings of the once washing of Drechsel system 1, the secondary washing of the first scrubbing tower 2, the gas-liquid separation of cyclone demister 4 and the second scrubbing tower 3, and last gas discharging is in air;
Meanwhile, the washings of the second scrubbing tower 3 are circulated in the first scrubbing tower 2 and again utilize, and the washings of the first scrubbing tower 2 are circulated in Drechsel system 1 and again utilize; The isolated water of cyclone demister 4 also enters in the second scrubbing tower 3 and again utilizes.
By above embodiment, the phosphorus ammonium vent gas washing system that the embodiment of the present invention provides and washing process, can make full use of water resource, economical environment-protective, reduces production cost, and the washing, purifying Be very effective to phosphorus ammonium tail gas.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a phosphorus ammonium vent gas washing system, is characterized in that, comprising: Drechsel system, the first scrubbing tower and the second scrubbing tower;
The gas outlet of described Drechsel system is communicated with the air inlet of described second scrubbing tower by described first scrubbing tower; The delivery port of described second scrubbing tower is communicated with the water inlet of described Drechsel system by described first scrubbing tower.
2. phosphorus ammonium vent gas washing system according to claim 1, it is characterized in that, also comprise cyclone demister, the gas outlet of described first scrubbing tower is communicated with the air inlet of described second scrubbing tower by described cyclone demister, and described cyclone demister is used for making gas-liquid separation; The delivery port of described cyclone demister is communicated with the water inlet of described second scrubbing tower.
3. phosphorus ammonium vent gas washing system according to claim 1, is characterized in that, also comprise the first tank, and the delivery port of described second scrubbing tower is communicated with the water inlet of described first scrubbing tower by described first tank.
4. phosphorus ammonium vent gas washing system according to claim 1, is characterized in that, also comprise the second tank, and the delivery port of described cyclone demister is communicated with the water inlet of described second scrubbing tower by described second tank.
5. the phosphorus ammonium vent gas washing system according to any one of claim 1-4, it is characterized in that, also comprise air-introduced machine, the gas outlet of described cyclone demister is communicated with the air inlet of described second scrubbing tower by described air-introduced machine, and described air-introduced machine is for accelerating the flowing of gas.
6. a phosphorus ammonium washing tail gas technique, is characterized in that, phosphorus ammonium tail gas is disposed in air through the washing of Drechsel system, the first scrubbing tower, cyclone demister and the second scrubbing tower successively;
The washings of the second scrubbing tower are circulated to described first scrubbing tower, and the washings of the first scrubbing tower are circulated to Drechsel system; The isolated water of cyclone demister enters in the second scrubbing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923402.3A CN105457449A (en) | 2015-12-14 | 2015-12-14 | Ammonium phosphate tail gas washing system and washing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923402.3A CN105457449A (en) | 2015-12-14 | 2015-12-14 | Ammonium phosphate tail gas washing system and washing technology |
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| Publication Number | Publication Date |
|---|---|
| CN105457449A true CN105457449A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923402.3A Pending CN105457449A (en) | 2015-12-14 | 2015-12-14 | Ammonium phosphate tail gas washing system and washing technology |
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| CN (1) | CN105457449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112807924A (en) * | 2021-02-08 | 2021-05-18 | 陕西陕化煤化工集团有限公司 | Phosphorus ammonia tail gas clean-up system |
Citations (9)
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|---|---|---|---|---|
| DE19733256A1 (en) * | 1997-08-01 | 1999-02-04 | Abb Research Ltd | Wet flue gas desulphurisation |
| JP4901193B2 (en) * | 2005-11-18 | 2012-03-21 | メタウォーター株式会社 | Pyrolysis gas purification method and apparatus |
| CN102390822A (en) * | 2011-08-15 | 2012-03-28 | 瓮福（集团）有限责任公司 | Method for producing phosphoric acid by using tailing eluate |
| CN202605961U (en) * | 2012-05-28 | 2012-12-19 | 云南化工设计院有限公司 | Ammonium dihydrogen phosphate production tail gas processing system |
| CN203469771U (en) * | 2013-08-16 | 2014-03-12 | 甘肃瓮福化工有限责任公司 | Washing system for ammonium phosphate offgas |
| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| CN104511233A (en) * | 2013-09-27 | 2015-04-15 | 艾伟 | Ammonium phosphate material recycling apparatus |
| CN105013310A (en) * | 2015-07-08 | 2015-11-04 | 瓮福（集团）有限责任公司 | Ammonium phosphate granulating tail gas washing device and method |
| CN205461669U (en) * | 2015-12-14 | 2016-08-17 | 湖北华毅化工有限公司 | Phosphorus ammonium tail gas washing system |
-
2015
- 2015-12-14 CN CN201510923402.3A patent/CN105457449A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733256A1 (en) * | 1997-08-01 | 1999-02-04 | Abb Research Ltd | Wet flue gas desulphurisation |
| JP4901193B2 (en) * | 2005-11-18 | 2012-03-21 | メタウォーター株式会社 | Pyrolysis gas purification method and apparatus |
| CN102390822A (en) * | 2011-08-15 | 2012-03-28 | 瓮福（集团）有限责任公司 | Method for producing phosphoric acid by using tailing eluate |
| CN202605961U (en) * | 2012-05-28 | 2012-12-19 | 云南化工设计院有限公司 | Ammonium dihydrogen phosphate production tail gas processing system |
| CN203469771U (en) * | 2013-08-16 | 2014-03-12 | 甘肃瓮福化工有限责任公司 | Washing system for ammonium phosphate offgas |
| CN104511233A (en) * | 2013-09-27 | 2015-04-15 | 艾伟 | Ammonium phosphate material recycling apparatus |
| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| CN105013310A (en) * | 2015-07-08 | 2015-11-04 | 瓮福（集团）有限责任公司 | Ammonium phosphate granulating tail gas washing device and method |
| CN205461669U (en) * | 2015-12-14 | 2016-08-17 | 湖北华毅化工有限公司 | Phosphorus ammonium tail gas washing system |
Non-Patent Citations (1)
| Title |
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| 王斌: "《化工物流管理与技术》", 30 January 2014 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112807924A (en) * | 2021-02-08 | 2021-05-18 | 陕西陕化煤化工集团有限公司 | Phosphorus ammonia tail gas clean-up system |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160725 Address after: 431999 Jingmen city of Hubei province Zhongxiang City Ying Zhen Wang Fu Road No. 27 Applicant after: Hubei Guoshute Chemical Industry Co., Ltd. Address before: Peng Jia Wan 431900 Jingmen city Hubei city in Zhongxiang Province town of Phosphorite Applicant before: HUBEI HUAYI CHEMICAL INDUSTRY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |