CN205288056U - Useless ammonia processing system of propane diamine production line - Google Patents
Useless ammonia processing system of propane diamine production line Download PDFInfo
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- CN205288056U CN205288056U CN201521005539.2U CN201521005539U CN205288056U CN 205288056 U CN205288056 U CN 205288056U CN 201521005539 U CN201521005539 U CN 201521005539U CN 205288056 U CN205288056 U CN 205288056U
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- production line
- effect
- effect well
- absorption tower
- heaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model relates to a waste gas recovery technical field discloses an useless ammonia processing system of propane diamine production line, including the ammonia absorptive unit, the unit is retrieved with the separation to concentrated unit. The ammonia absorptive unit includes absorption tower and mother liquor pond. Concentrated unit includes preheater, an effect heater, 1st effective evaporator, two effect heater and two -effect evaporation wares. The separation is retrieved the unit and is included hydrocyclone jar and centrifuge. The utility model discloses a production line can carry out recycle to the ammonia that discharges and prepare into ammonium sulfate, the cost is reduced in the propane diamine production line to whole in -process does not have the exhaust emissions completely.
Description
Technical field
The utility model relates to waste gas recovery technical field, particularly relates to the useless ammonia treatment system of a kind of propylene diamine production line.
Background technology
In China, chemical field is in high speed development state in the past few decades always, but the past is paid little attention to for the improvement of environment, causes the environmental problem polluted due to industrialization and cause this year day by day to increase the weight of, seriously have impact on the life of people. For this reason, country advocates the sustainability production of green energy conservation always in recent years.
In the production line preparing propylene diamine, a large amount of ammonias can be produced. Before for these useless ammonias, after being generally through purifying treatment, directly it is used as exhaust emissions or works as offal treatment. This not only pollutes environment to a certain extent, and wastes the resource of a large amount of recoverables.
The Chinese patent of application number CN201410413728.7 discloses a kind of recovery process discharging ammonia, it is enter the ammonia that factory discharges in the tower reactor of absorption tower to be absorbed by deionized water, a small amount of ammonia, water vapor and rare gas element can be overflowed from deionized water and be entered packing material absorbing section, and a small amount of ammonia having entered middle part packing material absorbing section with the deionized water degree of absorbing ammonia carries out washing absorption again; Water vapor containing trace ammonia and the rare gas element of effusion enter top cooling water condensation section, and micro-ammonia is also dissolved in solidifying water and is back in tower reactor, discharges rare gas element finally by mist eliminator, discharges rare gas element ammonia quantity less.
Although ammonia can be reclaimed by the discharge Ammonia recovery technique of above-mentioned patent, but containing ammonia in the last tail gas got rid of, can zero release completely.
Practical novel content
In order to solve the problems of the technologies described above, the utility model provides the useless ammonia treatment system of a kind of propylene diamine production line. The ammonia of discharge in propylene diamine production line can be carried out recycling and be prepared into ammonium sulfate by the utility model, reduces cost, and does not have exhaust emissions in whole process completely.
Concrete technical scheme of the present utility model is: the useless ammonia treatment system of a kind of propylene diamine production line, comprises ammonia absorptive unit, upgrading unit and Separation and Recovery unit. ammonia absorptive unit comprises absorption tower and mother liquor pond, and the inlet mouth on absorption tower is connected with ammonia pipe, and the fluid inlet on absorption tower stores up groove with dilute sulphuric acid and is connected, and absorption tower is provided with circulation line, and circulation line is connected with mother liquor pond, upgrading unit comprises pre-heaters, one effect well heater, 1st effective evaporator, two effect well heater and 2nd effect evaporators, the import of pre-heaters is connected with mother liquor pond, the discharge port of pre-heaters is connected with the import of an effect well heater, the outlet of one effect well heater is connected with 1st effective evaporator import, the discharge port of 1st effective evaporator is connected with the import of two effect well heaters, the vapour outlet of 1st effective evaporator is connected with the steam inlet of two effect well heaters, the vapour outlet of two effect well heaters is connected with liquid seal trough, the outlet of two effect well heaters is connected with the import of 2nd effect evaporator, the vapour outlet of 2nd effect evaporator and vacuum cooler-condenser, liquid seal trough connects successively, Separation and Recovery unit comprises rotary filter press tank and whizzer, and the discharge port of 2nd effect evaporator, rotary filter press tank, whizzer, mother liquor pond connect successively.
Principle of work of the present utility model is:
At ammonia absorptive unit, the useless ammonia discharged on propylene diamine production line enters absorption tower by ammonia pipe, dilute sulphuric acid stores up groove from dilute sulphuric acid and flows into absorption tower, dilute sulphuric acid is through circulation line, pouring is sprayed downwards from absorption tower top, useless ammonia ammonia part in uphill process is absorbed generation ammonium sulfate by dilute sulphuric acid and takes away, and a part continues circulation, and a part flows to mother liquor pond.
At upgrading unit, ammoniumsulphate soln flows into preheater from mother liquor pond, effect well heater and a 1st effective evaporator is flowed into again successively after preheater preheats, in 1st effective evaporator, the part moisture of ammoniumsulphate soln is formed by evaporation to steam, ammonium sulfate partial crystallization is mixed in ammoniumsulphate soln, ammoniumsulphate soln continues to flow into two effect well heaters from 1st effective evaporator, 2nd effect evaporator heating and separating is evaporated, the steam generated in 1st effective evaporator leads to into two effect well heaters as heating medium, steam flows out from two effect well heaters after being cooled to water again and enters liquid seal trough, the steam generated in 2nd effect evaporator is also influent sealing groove after vacuum cooler-condenser cools.
At Separation and Recovery unit, ammoniumsulphate soln in 2nd effect evaporator flows to rotary filter press tank, flows into whizzer after the further crystallization of Temperature fall, and in whizzer, ammonium sulfate crystallization is separated with ammoniumsulphate soln, ammonium sulfate crystallization is pulled out, and ammoniumsulphate soln finally flows into the continuation circulation of mother liquor pond.
As preferably, the top on described absorption tower is provided with the air outlet, top being connected with circulation line. The residual gas not absorbed by dilute sulphuric acid in absorption tower again converges with circulation line and enters in tower after discharging from tower top.
As preferably, being provided with dilute sulphuric acid charge pump between described dilute sulphuric acid storage groove and absorption tower, described circulation line is provided with absorption tower recycle pump, and the two ends of circulation line top and bottom with absorption tower are connected respectively.
As preferably, a described effect well heater and vacuum cooler-condenser being equipped with heat medium enter hose and hot matchmaker outlet.
As preferably, the pipeline between described mother liquor pond and preheater is provided with mother liquor pump and under meter, and the pipeline between the discharge port of 2nd effect evaporator and vacuum cooler-condenser is provided with discharging pump.
As preferably, it is provided with return pipeline A between the import of a described effect well heater and the discharge port of 1st effective evaporator, it is provided with return pipeline B between the import of two effect well heaters and the discharge port of 2nd effect evaporator, two effect well heaters are also provided with secondary vapour outlet, described secondary vapour outlet is connected with the steam inlet of preheater, and the vapour outlet of preheater is connected with liquid seal trough. One effect well heater and 1st effective evaporator are connected to form loop, and two effect well heaters and 2nd effect evaporator are connected to form loop, it is possible to add systemic circulation, increase heating efficiency. The vapour outlet of two or two effect well heaters is connected with preheater, it is possible to make full use of steam heat, energy-conserving and environment-protective.
As preferably, described vacuum cooler-condenser is connected with vacuum pump.
As preferably, the side wall upper part of described rotary filter press tank is provided with supernatant liquor overflow port, described supernatant liquor overflow port is connected by pipeline with mother liquor pond. Enable supernatant liquor directly flow to mother liquor pond and alleviate whizzer working strength.
As preferably, the exit of described liquid seal trough is provided with water shoot, described water shoot is provided with liquid seal trough pump.
Being compared with the prior art, the beneficial effects of the utility model are: the ammonia of discharge in propylene diamine production line can be carried out recycling and be prepared into ammonium sulfate by the utility model, reduces cost, and does not have exhaust emissions in whole process completely.
Accompanying drawing explanation
Fig. 1 is a kind of connection diagram of the present utility model.
Reference numeral is: absorption tower 1, mother liquor pond 2, ammonia pipe 3, dilute sulphuric acid storage groove 4, circulation line 5, pre-heaters 6, one effect well heater 7, 1st effective evaporator 8, two effect well heaters 9, 2nd effect evaporator 10, liquid seal trough 11, vacuum cooler-condenser 12, rotary filter press tank 13, whizzer 14, air outlet, top 15, dilute sulphuric acid charge pump 16, absorption tower recycle pump 17, mother liquor pump 18, discharging pump 19, return pipeline A20, return pipeline B21, vacuum pump 22, supernatant liquor overflow port 23, water shoot 24, liquid seal trough pump 25, under meter 26.
Embodiment
Below in conjunction with embodiment, the utility model will be further described. Device involved in the utility model, connect structure and method, if without refering in particular to, it is device well known in the art, connects structure and method.
Embodiment 1
As shown in Figure 1: the useless ammonia treatment system of a kind of propylene diamine production line, comprises ammonia absorptive unit, upgrading unit and Separation and Recovery unit.
Ammonia absorptive unit comprises absorption tower 1 and mother liquor pond 2, and the inlet mouth on absorption tower is connected with ammonia pipe 3, and the fluid inlet on absorption tower stores up groove 4 with dilute sulphuric acid and is connected, and absorption tower is provided with circulation line 5, and circulation line is connected with mother liquor pond. Being provided with dilute sulphuric acid charge pump 16 between described dilute sulphuric acid storage groove and absorption tower, described circulation line is provided with absorption tower recycle pump 17, and the two ends of circulation line top and bottom with absorption tower are connected respectively. The top on described absorption tower is provided with the air outlet, top 15 being connected with circulation line.
Upgrading unit comprises pre-heaters 6, one effect well heater 7, 1st effective evaporator 8, two effect well heater 9 and 2nd effect evaporators 10, the import of pre-heaters is connected with mother liquor pond, the discharge port of pre-heaters is connected with the import of an effect well heater, the outlet of one effect well heater is connected with 1st effective evaporator import, the discharge port of 1st effective evaporator is connected with the import of two effect well heaters, the vapour outlet of 1st effective evaporator is connected with the steam inlet of two effect well heaters, the vapour outlet of two effect well heaters is connected with liquid seal trough 11, the outlet of two effect well heaters is connected with the import of 2nd effect evaporator, the vapour outlet of 2nd effect evaporator and vacuum cooler-condenser 12, liquid seal trough connects successively.
Pipeline between described mother liquor pond and preheater is provided with mother liquor pump 18 and under meter 26, and the pipeline between the discharge port of 2nd effect evaporator and vacuum cooler-condenser is provided with discharging pump 19. A described effect well heater and vacuum cooler-condenser are equipped with heat medium enter hose and hot matchmaker outlet. Described vacuum cooler-condenser is connected with vacuum pump 22. It is provided with return pipeline A20 between the import of a described effect well heater and the discharge port of 1st effective evaporator, it is provided with return pipeline B21 between the import of two effect well heaters and the discharge port of 2nd effect evaporator, two effect well heaters are also provided with secondary vapour outlet, described secondary vapour outlet is connected with the steam inlet of preheater, and the vapour outlet of preheater is connected with liquid seal trough. The exit of described liquid seal trough is provided with water shoot 24, and described water shoot is provided with liquid seal trough pump 25.
Separation and Recovery unit comprises rotary filter press tank 13 and whizzer 14, and the discharge port of 2nd effect evaporator, rotary filter press tank, whizzer, mother liquor pond connect successively. The side wall upper part of described rotary filter press tank is provided with supernatant liquor overflow port 23, and described supernatant liquor overflow port is connected by pipeline with mother liquor pond.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1, and in embodiment 2, the secondary vapour outlet of two effect well heaters is not connected with the steam inlet of preheater.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1, is not provided with return pipeline A in embodiment 3 between an effect well heater and 1st effective evaporator, is not provided with return pipeline B between two effect well heaters and 2nd effect evaporator.
The above; it it is only better embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure conversion above embodiment done according to the utility model technical spirit, all still belongs to the protection domain of technical solutions of the utility model.
Claims (9)
1. a useless ammonia treatment system for propylene diamine production line, is characterized in that: comprise ammonia absorptive unit, upgrading unit and Separation and Recovery unit, ammonia absorptive unit comprises absorption tower (1) and mother liquor pond (2), and the inlet mouth on absorption tower is connected with ammonia pipe (3), and the fluid inlet on absorption tower stores up groove (4) with dilute sulphuric acid and is connected, and absorption tower is provided with circulation line (5), and circulation line is connected with mother liquor pond, upgrading unit comprises pre-heaters (6), one effect well heater (7), 1st effective evaporator (8), two effect well heater (9) and 2nd effect evaporators (10), the import of pre-heaters is connected with mother liquor pond, the discharge port of pre-heaters is connected with the import of an effect well heater, the outlet of one effect well heater is connected with 1st effective evaporator import, the discharge port of 1st effective evaporator is connected with the import of two effect well heaters, the vapour outlet of 1st effective evaporator is connected with the steam inlet of two effect well heaters, the vapour outlet of two effect well heaters is connected with liquid seal trough (11), the outlet of two effect well heaters is connected with the import of 2nd effect evaporator, the vapour outlet of 2nd effect evaporator and vacuum cooler-condenser (12), liquid seal trough connects successively, Separation and Recovery unit comprises rotary filter press tank (13) and whizzer (14), and the discharge port of 2nd effect evaporator, rotary filter press tank, whizzer, mother liquor pond connect successively.
2. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, is characterized in that, the top on described absorption tower is provided with the air outlet, top (15) being connected with circulation line.
3. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1 or 2, it is characterized in that, it is provided with dilute sulphuric acid charge pump (16) between described dilute sulphuric acid storage groove and absorption tower, described circulation line is provided with absorption tower recycle pump (17), and the two ends of circulation line top and bottom with absorption tower are connected respectively.
4. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, is characterized in that, a described effect well heater and vacuum cooler-condenser are equipped with heat medium enter hose and hot matchmaker outlet.
5. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, it is characterized in that, pipeline between described mother liquor pond and preheater is provided with mother liquor pump (18) and under meter (26), and the pipeline between the discharge port of 2nd effect evaporator and vacuum cooler-condenser is provided with discharging pump (19).
6. the useless ammonia treatment system of a kind of propylene diamine production line as described in claim 1 or 5, it is characterized in that, it is provided with return pipeline A(20) between the import of a described effect well heater and the discharge port of 1st effective evaporator, it is provided with return pipeline B(21) between the import of two effect well heaters and the discharge port of 2nd effect evaporator, two effect well heaters are also provided with secondary vapour outlet, described secondary vapour outlet is connected with the steam inlet of preheater, and the vapour outlet of preheater is connected with liquid seal trough.
7. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, is characterized in that, described vacuum cooler-condenser is connected with vacuum pump (22).
8. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, is characterized in that, the side wall upper part of described rotary filter press tank is provided with supernatant liquor overflow port (23), and described supernatant liquor overflow port is connected by pipeline with mother liquor pond.
9. the useless ammonia treatment system of a kind of propylene diamine production line as claimed in claim 1, is characterized in that, the exit of described liquid seal trough is provided with water shoot (24), and described water shoot is provided with liquid seal trough pump (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005539.2U CN205288056U (en) | 2015-12-07 | 2015-12-07 | Useless ammonia processing system of propane diamine production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005539.2U CN205288056U (en) | 2015-12-07 | 2015-12-07 | Useless ammonia processing system of propane diamine production line |
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| Publication Number | Publication Date |
|---|---|
| CN205288056U true CN205288056U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521005539.2U Expired - Fee Related CN205288056U (en) | 2015-12-07 | 2015-12-07 | Useless ammonia processing system of propane diamine production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205288056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395860A (en) * | 2016-08-30 | 2017-02-15 | 爱森（中国）絮凝剂有限公司 | Ammonia gas water washing evaporative crystallization recovery system |
| CN107890761A (en) * | 2017-11-14 | 2018-04-10 | 合肥创想能源环境科技有限公司 | A kind of method that the industrial waste gas containing ammonia is handled using membrane separation technique |
| CN109045830A (en) * | 2018-08-23 | 2018-12-21 | 徐翔 | Mother liquor discharge system |
-
2015
- 2015-12-07 CN CN201521005539.2U patent/CN205288056U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395860A (en) * | 2016-08-30 | 2017-02-15 | 爱森（中国）絮凝剂有限公司 | Ammonia gas water washing evaporative crystallization recovery system |
| CN107890761A (en) * | 2017-11-14 | 2018-04-10 | 合肥创想能源环境科技有限公司 | A kind of method that the industrial waste gas containing ammonia is handled using membrane separation technique |
| CN109045830A (en) * | 2018-08-23 | 2018-12-21 | 徐翔 | Mother liquor discharge system |
| CN109045830B (en) * | 2018-08-23 | 2021-02-02 | 徐翔 | Mother liquor discharge system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20211207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |