CN206126864U - It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water - Google Patents
It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water Download PDFInfo
- Publication number
- CN206126864U CN206126864U CN201621125254.7U CN201621125254U CN206126864U CN 206126864 U CN206126864 U CN 206126864U CN 201621125254 U CN201621125254 U CN 201621125254U CN 206126864 U CN206126864 U CN 206126864U
- Authority
- CN
- China
- Prior art keywords
- entrance
- ammonia
- outlet
- pipeline
- absorption tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a containing ammonia transform lime set waste water and preparing the method of pure liquid ammonia, it adopts the mode of addding the rectifying column to prepare qualified pure liquid ammonia on single tower pressure side line extraction strip + absorptive basis of cooling. This method has been solved and has been contained ammonia transform lime set in the conventional transform lime set air stripping flow and handle not up to standardly, and useless ammonia can only go the difficult problem that the low reaches burning discharged nitrogen oxide. The utility model also discloses an it prepares device of pure liquid ammonia to contain ammonia transform lime set waste water.
Description
Technical field
This utility model is related to a kind of ammonia that contains and converts lime set waste water making pure liquefied ammonia technical field, more particularly to a kind of to contain ammonia
The method and device of conversion lime set waste water making pure liquefied ammonia.
Background technology
China is a few country of many gas of coal, and at present, most of chemical enterprises adopt coal for raw material, and conversion section is
The requisite workshop section of each coal chemical engineering equipment.Due to containing a small amount of ammonia in the gas after coal gasification, in the high temperature of conversion section
Gas produces substantial amounts of ammonia-containing water after heat exchange cooling.The conversion lime set waste water for especially producing in coal-water slurry gasification
In ammonia content will to be higher by fine coal gasification process a lot.
Process in the coal plant being currently in operation to lime set waste water is converted containing ammonia mainly has single column steam air stripping, double
Tower is stripped and single column pressurization side line takes out the modes such as ammonia is stripped, single column pressurization lateral line withdrawal function stripping+cooling absorbs.
As shown in figure 1, single column steam air stripping main flow is described as follows：The condensed device of all of condensed fluid in conversion section
2 top of conversion stripper is delivered to after 1 heating, the bottom of towe for converting stripper 2 is passed through a certain amount of low-pressure steam.In conversion lime set
Light component is separated in the presence of steam air stripping from conversion lime set, is discharged from stripper top, after condensed device 1 is condensed
Send into gas-liquid separator 3 and be separated into sour gas and condensation sewage.Sour gas enters torch or sulfur recovery unit, the Jing of liquid containing ammonia condensing
After condenser 4 is condensed, return to stripper top or do not flow back by pump 5 and be used as wastewater disposition.
This flow process exists following not enough：
(1) H in coal is typically contained in the conversion lime set of conversion section2S、CO2, ammonia, Cl-、CN-Etc. component.
These components are not if being acted upon being fed directly to convert in stripper, it will to converting stripper, tower internals and its auxiliary device
Produce corrosion.Numerous coal plants have all occurred problems at present.
(2) as processed conversion lime set using above-mentioned single column steam gas stripping process, if the liquid containing ammonia condensing of dephlegmator of top of the tower
Do not flow back, then have stripping sewage to need outer row.If condensed fluid return stripper in participate in washing, carbon dioxide, hydrogen sulfide and
Ammonia then can be accumulated in reflux process, cause equipment, the corrosion of pipeline and blocking.
(3) as using above-mentioned single column steam gas stripping process process conversion lime set, stripper overhead discharge be carbon dioxide,
The gaseous mixture of hydrogen sulfide and ammonia, in follow-up condensation process, vapor delivery line is because during cooling, carbon dioxide, hydrogen sulfide and ammonia is easily
Generate NH4HS and NH4HCO3Ammonium salt crystallization, causes stripper overhead column plate, the corrosion of overhead condenser and line clogging.
(4) as processed conversion lime set using above-mentioned single column steam gas stripping process, ammonia carries out burning disposal as harmful substance,
Not only waste of resource, also result in environmental pollution.
As shown in Fig. 2 double tower stripping main flow is described as follows：Urea carbon dioxide stripper is entered after conversion lime set is heated
10 tops, 10 bottom of towe of urea carbon dioxide stripper are passed through the secondary low-voltage steam of 20 top output of aminoacid stripping tower.Carbon dioxide and sulfur
Change hydrogen to discharge from the top of urea carbon dioxide stripper 10, condensed device 30 is sent into gas-liquid separator 40 after condensing and is separated into acidity
Gas and condensation sewage, at the top of gas-liquid separator 40, solidifying sour gas does not enter torch or sulfur recovery workshop section, urea carbon dioxide stripper
10 bottom lime set waste water enter 20 top of aminoacid stripping tower, and aminoacid stripping tower 20 is passed through a certain amount of low-pressure steam, and ammonia steam is from ammonia vapour
20 tower top of stripper is discharged, and after condenser 50 is once condensed, sending in gas-liquid separator 60 carries out gas-liquid separation, obtains rich ammonia
Gas and condensation sewage, condensation sewage are returned in aminoacid stripping tower 20 as one-level condensed fluid, and rich ammonia is cold through condenser 70 2 times
Gas-liquid separator 80 is sent into after solidifying carries out gas-liquid separation, and the detached condensation sewage of gas-liquid separator 80 is used as B-grade condensation liquid conduct
Wastewater disposition, rich ammonia enter torch or sulfur recovery workshop section.
This flow process overcomes the segmental defect in single column steam air stripping, but still assigns ammonia as detoxication, does not have
There is recovery, in flow process, have sewage to need outer row.
As shown in figure 3, single column pressurization lateral line withdrawal function stripping main flow is described as follows：
Conversion lime set is divided to hot and cold two stock not from vapour after condenser 10a and heater 20a are condensed respectively and heated
The top and middle and upper part of stripper 30a enters stripper 30a, the CO being stripped off2、H2The sour gas such as S and Ammonia, vapor by
Send at the top of stripper 30a, be sent directly into torch or sulfur recovery unit.Ammonia in conversion lime set is rich at the middle part of stripper 30a
Collection, Jing condensers 40a, 40b, 40c, 40d and gas-liquid separator 50a, 50b, 50c after coming are produced by side to carry out three-level condensation and divides
The thick ammonia of higher concentration after liquid, is obtained, ammonia refining part is delivered to and is further processed.Raw material is returned after three-level fractional condensation liquid mixing
Tank.
This flow scheme improvements double tower stripping process, but there is also following deficiency：
(1) ammonia steam is condensed through three-level, can obtain the rich ammonia that concentration is 99% or so, wherein CO2Content is about
20ppm, H2S contents are about 1000ppm, but still can not be used directly to prepare H2The content of S is less than 100ppm, and concentration is
20% qualified weak ammonia.
(2) second level condensation temperature generally in three-level condenser system is controlled at 70-90 DEG C, certain so as to further condense
The water and hydrogen sulfide of amount and in improving gas phase ammonia concentration.But, corrosion of the hydrogen sulfide to steel strengthens with the rising of temperature,
80 DEG C of corrosion rates reach highest, and after temperature is raised again, corrosion rate starts to reduce, and at 110-120 DEG C, corrosion rate reaches
It is minimum.
(3) three-level condensation flow process includes three heat exchangers and three points of flow containers, takes up an area big.
As shown in figure 4, single column pressurization lateral line withdrawal function strips+cools down absorption process main flow and is described as follows：
It is divided into two parts from converting means lime set containing ammonia conversion, a part heats up through thermal converter E1, E2 heat exchange
Afterwards into the middle and upper part of stripper T1.Another part is sent directly into the top of stripper T1；Stripper T1 tower bottom reboilers E3 leads to
Enter a certain amount of low pressure steam, the conversion lime set to entering tower is stripped.Stripper T1 bottom of towe is qualified purification and condensation liquid
Downstream unit is delivered to after pump P1, thermal converter E2, E4 cooling.Most of H2S、CO2Evaporate from stripper T1 tower tops etc. component
Go out, part H2S、NH3、H2Then the components such as O enter back into heat exchanger E1 and are cooled to 115 DEG C or so and from stripper T1 lateral line withdrawal functions
Enter the I sections bottom to ammonia absorption tower T2.Liquid phase from ammonia absorption tower T2 ii sections bottom is entered by action of gravity
To at the top of ammonia absorption tower T2 I sections.Cooling is absorbed from ammonia absorption tower T2 I sections bottom rising part H2S.Through cooling
The gas phase of absorption enters into ammonia absorption tower T2 ii sections bottom by chimney plate, delivers to ammonia suction from Partial cleansing condensed fluid
Receive cooling at the top of tower T2 ii sections and absorb ammonia absorption tower T2 ii sections bottom rising part H2S.Through the gas phase that cooling absorbs
Ammonia absorption tower T2 ii I sections bottom is entered into by chimney plate.Then ammonia absorption is delivered to using Partial cleansing condensed fluid again
Cooling at the top of tower T2 ii I sections absorbs the part NH that ammonia absorption tower ii section bottom rises3.Qualified dilute ammonia is produced finally
Water.Due to absorbing heat release, now from ammonia absorption tower ii I section bottom, weak ammonia temperature is higher, finally by aqua ammonia pump P3
Deliver to ammonia cooler E5 coolings and send battery limit (BL).Weak ammonia after another part cooling is as refrigerant circulation to ammonia absorption tower
At the top of T2 ii I sections, the cleaning mixture from ammonia absorption tower T2 I sections bottom sends into the middle and upper part of stripper T1 by pump P2.
This flow process improves to some extent, but there is also following deficiency：
(1) Jing after air stripping and cooling absorb, only production concentration is 20% qualified weak ammonia, and the product of this kind of specification
Market purposes is few, and market potential is low, it is impossible to effectively utilizes.
(2) such as stripper operation fluctuation, it is susceptible to the exceeded problem of hydrogen sulfide in weak ammonia.
Utility model content
Technical problem to be solved in the utility model be for single column pressurization lateral line withdrawal function strip+cool down absorption process
The problems of and provide it is a kind of containing ammonia convert lime set waste water making pure liquefied ammonia device, the device single column pressurization side line take out
On the basis of going out stripping+cooling absorption, qualified pure liquefied ammonia is produced by the way of rectifying column is set up.Often this method solve
In rule conversion lime set air stripping flow process, the conversion lime set containing ammonia processes not up to standard, and useless ammonia can only remove fired downstream discharge nitrogen oxides
A difficult problem.
Technical problem to be solved in the utility model can be achieved through the following technical solutions：
A kind of device that lime set waste water making pure liquefied ammonia is converted containing ammonia, including stripper, ammonia absorption tower and ammonia rectification
Tower；
The bottom of the stripper is provided with stripper tower bottom reboiler and first outlet, middle part be provided with first entrance and
Second outlet, top are provided with second and third entrance, and top is provided with the 4th entrance and the 3rd outlet；
The ammonia absorption tower I sections bottom is provided with the 5th entrance and the 4th outlet, the top of ammonia absorption tower ii section
Portion is provided with the 6th entrance, and the 7th entrance, ammonia absorption tower ii I are provided with the middle part of the ammonia absorption tower ii I section
Section top is provided with the 8th entrance and the 5th outlet；Or the ammonia absorption tower I sections bottom is provided with the 5th entrance and
Four outlets, are provided with the 6th entrance, are provided with the middle part of the ammonia absorption tower ii section at the top of ammonia absorption tower ii section
9th entrance, is provided with the 7th entrance, sets at the top of the ammonia absorption tower ii I section in the middle part of the ammonia absorption tower ii I section
It is equipped with the 8th entrance and the 5th outlet；The ammonia absorption tower ii I section bottom is provided with the 6th outlet；
The bottom of towe of the ammonia rectifying column is provided with tower reactor reboiler and the 7th outlet, is provided with the middle part of ammonia rectifying column
Tenth entrance or the tenth entrance and the 11st entrance, are provided with the 8th outlet and the 12nd and enter at the top of the ammonia rectifying column
Mouthful；
On the one hand the first pipeline and the stripper top are passed through from converting means delivery pipe containing ammonia conversion lime set
4th entrance connects, and is on the other hand connected with the first medium entrance of first heat exchanger by the second pipeline, the first heat exchange
The first medium outlet of device is connected with the first medium entrance of second heat exchanger by the 3rd pipeline, and the of second heat exchanger
One media outlet is connected with the second entrance on the stripper top by the 4th pipeline；
The outlet of lye tank (vat) is connected with the entrance of the first pump by the 5th pipeline, the outlet of the first pump by the 6th pipeline with
First entrance connection in the middle part of the stripper；
The first outlet of stripper bottom is connected with the entrance of the second pump by the 7th pipeline, the outlet of second pump
It is connected with the second medium entrance of the second heat exchanger by the 8th pipeline, the second medium of the second heat exchanger goes out
Mouth is connected with the entrance of the 3rd heat exchanger by the 9th pipeline, the outlet connection waste water outlet tube of the 3rd heat exchanger；
3rd outlet one sour gas outlet tube of connection of stripper top, the 3rd entrance on stripper top is by the tenth pipe
Line and the 3rd pump are connected with the 4th outlet of the ammonia absorption tower I sections bottom, and the second outlet in the middle part of the stripper is led to
Cross the 11st pipeline to be connected with the second medium entrance of the first heat exchanger, the second medium of the first heat exchanger goes out
Mouth is connected with the 5th entrance of the ammonia absorption tower I sections bottom by the 12nd pipeline；
The 5th outlet one fixed gas outlet tube of connection at the top of the ammonia absorption tower ii I section；The ammonia absorption tower
The 8th entrance at the top of ii I section connects a desalination water inlet pipe；
The 7th entrance in the middle part of the ammonia absorption tower ii I section connects the of the 5th heat exchanger by the 13rd pipeline
One medium inlet, the first medium outlet of the 5th heat exchanger connect the 4th heat exchanger by the 14th pipeline
First medium entrance, the first medium outlet of the 4th heat exchanger connect the ammonia rectifying tower by the 15th pipeline
The 7th outlet connection at bottom；The 6th entrance at the top of the ammonia absorption tower ii section is connected to described by the 16th pipeline
The outlet of one pump；The 6th entrance at the top of the ammonia absorption tower ii section also connects the waste water output by the 17th pipeline
Guan Shang, the 9th entrance in the middle part of the ammonia absorption tower ii section are also connected on the 13rd pipeline by the 18th pipeline；
6th outlet of the ammonia absorption tower ii I section bottom is connected to the entrance of the 4th pump by the 19th pipeline, and the described 4th
The outlet of pump connects the second medium entrance of the 4th heat exchanger by the 20th pipeline, and the of the 4th heat exchanger
Second medium outlet connects the tenth entrance connection in the middle part of the ammonia rectifying column by the 21st pipeline；
Or, on the one hand the 7th entrance in the middle part of the ammonia absorption tower ii I section connects institute by the 22nd pipeline
Waste water outlet tube is stated, the tenth entrance in the middle part of the ammonia rectifying column is connected to by the 23rd pipeline on the other hand；It is described
The 6th entrance at the top of ammonia absorption tower ii section is connected on the 22nd pipeline by the 24th pipeline；The ammonia
6th outlet of absorption tower ii I section bottom is connected to the entrance of the 4th pump, the outlet of the 4th pump by the 19th pipeline
The entrance of the 5th heat exchanger is connected by the 25th pipeline, the outlet of the 5th heat exchanger passes through the 26th
Pipeline connects on the 23rd pipeline, and the outlet of the 5th heat exchanger also connects the ammonia by the 27th pipeline
The 11st entrance in the middle part of crystal evaporate tower；7th outlet at the ammonia rectifying tower bottom is described by the connection of the 28th pipeline
Waste water outlet tube；
The 8th outlet at the top of the ammonia rectifying column connects entering for the 6th heat exchanger by the 29th pipeline
Mouthful, the outlet of the 6th heat exchanger connects the entrance of a storage tank by the 30th pipeline, and the outlet of the storage tank is by the
31 pipelines connect the entrance of the 5th pump, and on the one hand the outlet of the 5th pump connects liquefied ammonia outlet tube, on the other hand pass through
32nd pipeline connects the 12nd entrance at the top of the ammonia rectifying column.
As a result of technical scheme as above, this utility model and existing single column pressurization lateral line withdrawal function stripping+cooling
The device for absorbing making pure liquefied ammonia is compared, and is had the advantage that：
1. ammonia absorption tower is set and replaces traditional three-level condensation flow process, cooling, Absorption Desulfurization and ammonia are produced and is combined into
Integrally, equipment investment and occupation of land are reduced.
2. the Partial Transformation lime set using process after qualified delivers to above-mentioned ammonia absorption tower ii as cooling and absorbent
Section top, the H being not only effectively reduced in gas phase2S contents, can also reduce the temperature of gas phase.Now temperature is just avoided
The optimum temperature of corrosion.
3. the Partial Transformation lime set using process after qualified delivers to above-mentioned ammonia absorption tower ii I as cooling and absorbent
Section top, compares the use that traditional ammonia absorption saves desalted water.
4. due to NH3After stripper is by lateral line withdrawal function, ammonia is substantially free of in tower top sour gas, it is to avoid ammonium salt is in stripper
The crystallization and corrosion of tower top.Downstream Crouse can be fed directly to for this tower top sour gas and reclaim sulfur.
5. as H is not contained substantially in purification and condensation liquid yet2S、NH3Deng material, gasification can be fed directly to or biochemical treatment subtracts
The light burden of wastewater disposition.
6. it is additionally arranged ammonia rectifying column to produce qualified liquefied ammonia product in tower top.
7. ammonia rectifying column pressurized operation, it is ensured that rectifying tower top condenser temperature is higher, can adopt the cold of common specification
But water can meet cooling and require, it is not necessary to consume low temperature cold.
8. pair newly upper lime set processing meanss, ammonia tower bottom of rectifying tower extraction weak ammonia, return ammonia absorption tower.Although therefore
Ammonia rectifying column pressurized operation, its bottom temperature be not also too high, can meet rectification heat demand using low-pressure steam.
9., for transformation device, absorption plant is constructed finishes for side line air stripping such as above and cooling, then increase ammonia newly
Tower bottom of rectifying tower extraction meets the waste water of environmental requirement, middle pressure steam that now rectifying column reboiler need to adopt potential temperature higher or
Process-stream is used as thermal source.
10., in order to ensure the pre- anticorrosion of product liquid ammonia quality, alkali liquor can be added in the middle part of stripper and ammonia absorption tower.
11. for small-scale device, and the condenser of ammonia rectifying column tower top can be integrated with rectifying column, so as to save
One return tank and a reflux pump.
The weak ammonia of 12. ammonia tower bottom of rectifying tower is returned in the middle part of ammonia absorption tower ii I section Jing after recuperation of heat cooling and the
Two-stage nitration top is recycled as absorbent.
This utility model, is solved at present by reconfiguring containing ammonia conversion lime set wastewater treatment process for a kind of at present
The conversion lime set waste water containing ammonia cannot be processed or ammonia quality after treatment is too low without market outlet problem.
Description of the drawings
Fig. 1 is the schematic device that existing single column steam air stripping converts lime set waste water making pure liquefied ammonia containing ammonia.
Fig. 2 is the schematic device that existing double tower stripping converts lime set waste water making pure liquefied ammonia containing ammonia.
Fig. 3 is the schematic device that existing single column pressurization lateral line withdrawal function stripping converts lime set waste water making pure liquefied ammonia containing ammonia.
Fig. 4 is that existing single column pressurization lateral line withdrawal function stripping+cooling absorbs the dress that lime set waste water making pure liquefied ammonia is converted containing ammonia
Put schematic diagram.
The schematic devices that containing ammonia convert lime set waste water making pure liquefied ammonia of the Fig. 5 for this utility model embodiment 1.
The schematic devices that containing ammonia convert lime set waste water making pure liquefied ammonia of the Fig. 6 for this utility model embodiment 2.
Specific embodiment
Embodiment 1
Referring to Fig. 5, the device that lime set waste water making pure liquefied ammonia is converted containing ammonia shown in figure, it is mainly used in newly-increased lime set
Air-lift device, which includes stripper 100, ammonia absorption tower 200 and ammonia rectifying column 300.
The bottom of stripper 100 is provided with stripper tower bottom reboiler E3 and outlet 110, and middle part is provided with 120 He of entrance
Outlet 130, top are provided with entrance 140,150, and top is provided with entrance 160 and outlet 170.
200 I sections bottom of ammonia absorption tower is provided with entrance 210 and outlet 220, the top of 200 ii section of ammonia absorption tower
Portion is provided with entrance 230, and entrance 240,200 ii I section top of ammonia absorption tower are provided with the middle part of 200 ii I section of ammonia absorption tower
Portion is provided with entrance 250 and outlet 260.Entrance 270, ammonia absorption tower 200 are provided with the middle part of 200 ii section of ammonia absorption tower
The bottom of ii I section is provided with outlet 280.
The bottom of towe of ammonia rectifying column 300 is provided with tower reactor reboiler E7 and outlet 310, and the middle part of ammonia rectifying column 300 sets
Entrance 320 is equipped with, the top of ammonia rectifying column 300 is provided with outlet 330 and entrance 340.
Pass through at the top of pipeline 402 and stripper 100 from converting means 401 one side containing ammonia conversion lime set delivery pipe
Entrance 160 connects, and is on the other hand connected with the first medium entrance of heat exchanger E1 by pipeline 403, and the of heat exchanger E1
One media outlet is connected with the first medium entrance of heat exchanger E2 by pipeline 404, the first medium outlet of heat exchanger E2
It is connected with the entrance 140 on 100 top of stripper by pipeline 405.
The outlet of lye tank (vat) V1 is connected with the entrance of pump P3 by pipeline 406, and the outlet of pump P3 is by pipeline 407 and stripping
Entrance 120 in the middle part of tower 100 connects.
The outlet 110 of 100 bottom of stripper is connected with the entrance of pump P1 by pipeline 408, and the outlet of pump P1 passes through pipeline
409 are connected with the second medium entrance of heat exchanger E2, and the second medium outlet of heat exchanger E2 is by pipeline 410 and heat exchange
The entrance connection of device E4, the outlet connection waste water outlet tube 411 of heat exchanger E4.
Outlet 170 at the top of stripper 100 connects a sour gas outlet tube 412, and the entrance 150 on 100 top of stripper leads to
The outlet 220 that pipeline 412a and pump P2 are crossed with 200 I sections bottom of ammonia absorption tower is connected, the outlet 130 in the middle part of stripper 100
It is connected with the second medium entrance of heat exchanger E1 by pipeline 413, the second medium outlet of heat exchanger E1 is by pipeline 414
It is connected with the entrance 210 of 200 I sections bottom of ammonia absorption tower.
Outlet 260 at the top of 200 ii I section of ammonia absorption tower connects a fixed gas outlet tube 415；Ammonia absorption tower
Entrance 250 at the top of III sections 200 connects a desalination water inlet pipe 416.
Entrance 240 in the middle part of 200 ii I section of ammonia absorption tower connects the first medium of heat exchanger E8 by pipeline 417
Entrance, the first medium outlet of heat exchanger E8 connect the first medium entrance of heat exchanger E5, heat exchanger by pipeline 418
The first medium outlet of E5 is connected by the outlet 310 that pipeline 419 connects 300 bottom of towe of ammonia rectifying column；Ammonia absorption tower 300
230 one side of entrance at the top of II sections is connected to the outlet of pump P3 by pipeline 420, on the other hand useless by the connection of pipeline 421
Water delivery pipe 411.
Entrance 270 in the middle part of 300 ii section of ammonia absorption tower is also by 422 connecting pipeline 417 of pipeline；Ammonia absorption tower
The outlet 280 of 300 ii I section bottoms is connected to the entrance of pump P4 by pipeline 423, and the outlet of pump P4 is connected by pipeline 424
The second medium entrance of heat exchanger E5, the second medium outlet of heat exchanger E5 connect ammonia rectifying column 300 by pipeline 425
The entrance 320 at middle part connects.
Outlet 330 at the top of ammonia rectifying column 300 connects the entrance of heat exchanger E6, heat exchanger E6 by pipeline 426
Outlet by pipeline 427 connect a storage tank V2 entrance, storage tank V2 outlet by pipeline 428 connect pump P5 entrance, pump
On the one hand the outlet of P5 connects liquefied ammonia outlet tube 429, on the other hand connects entering at the top of ammonia rectifying column 300 by pipeline 430
Mouth 340.
It is divided into two parts from converting means lime set containing ammonia conversion, a part heats up through heat exchanger E1, E2 heat exchange
100 middle and upper part of stripper is entered afterwards.100 tower bottom reboiler E3 of stripper is passed through a certain amount of low pressure steam, the change to entering tower
Change lime set to be stripped.100 bottom of towe of stripper is that qualified purification and condensation liquid delivers to downstream dress after heat exchanger E4 coolings
Put.Most of H2S、CO2Distillate from 100 tower top of stripper etc. component, part H2S、NH3、H2The components such as O from lateral line withdrawal function, then
Enter back into heat exchanger E1 and be cooled to 110～120 DEG C and enter into 300 I sections bottom of ammonia absorption tower.From ammonia absorption tower
The liquid phase of 200 ii section bottoms is entered at the top of 200 I sections of ammonia absorption tower by action of gravity.Cooling is absorbed from ammonia
200 I sections bottom rising part H of absorption tower2S.The gas phase absorbed through cooling enters into ammonia absorption tower 20 by chimney plate
Ii section bottom, delivers at the top of 200 ii section of ammonia absorption tower from Partial cleansing condensed fluid and alkali liquor, and cooling absorbs ammonia and inhales
Receive 200 ii section bottom rising part H of tower2S.The gas phase absorbed through cooling enters into ammonia absorption tower 200 by chimney plate
Ii I section bottom.Then cooling at the top of 200 ii I section of ammonia absorption tower is delivered to using desalted water again and absorbs ammonia absorption tower 300
Ii section bottom rising part NH3, 200 ii I section of ammonia absorption tower is also fed into from the weak ammonia of 300 tower reactor of ammonia rectifying column
Middle part as absorbent, so as to produce not hydrogen sulfide containing ammonia.
Qualified ammonia sends into ammonia rectifying column 300 as charging Jing after pressure-raising preheating.300 tower top ammonia of ammonia rectifying column
Steam obtains ammonia lime set Jing after cooling water condensation, and part ammonia lime set Jing pump P5 is returned to as backflow at the top of ammonia rectifying column 300,
Another part ammonia lime set is delivered to out-of-bounds as product liquefied ammonia.300 tower reactor reboiler E7 of ammonia rectifying column pass through low-pressure steam or
Process-stream cooling provides heat, the weak ammonia Jing heat exchangers E5 heat exchange of 300 tower reactor of ammonia rectifying column extraction and heat exchanger
Return in the middle part of 200 ii I section of ammonia absorption tower as absorbent and second segment top after E8 coolings.
Embodiment 2
Referring to Fig. 6, the device that lime set waste water making pure liquefied ammonia is converted containing ammonia shown in figure, it is mainly used in the solidifying of reworked
Liquid air-lift device, which includes stripper 100, ammonia absorption tower 200 and ammonia rectifying column 300.
The bottom of stripper 100 is provided with stripper tower bottom reboiler E3 and outlet 110, and middle part is provided with 120 He of entrance
Outlet 130, top are provided with entrance 140,150, and top is provided with entrance 160 and outlet 170.
200 I sections bottom of ammonia absorption tower is provided with entrance 210 and outlet 220, the top of 200 ii section of ammonia absorption tower
Portion is provided with entrance 230, and entrance 240,200 ii I section top of ammonia absorption tower are provided with the middle part of 200 ii I section of ammonia absorption tower
Portion is provided with entrance 250 and outlet 260.The bottom of 200 ii I section of ammonia absorption tower is provided with outlet 280.
The bottom of towe of ammonia rectifying column 300 is provided with tower reactor reboiler E7 and outlet 310, and the middle part of ammonia rectifying column 300 sets
Entrance 320,350 is equipped with, the top of ammonia rectifying column 300 is provided with outlet 330 and entrance 340.
Pass through at the top of pipeline 402 and stripper 100 from converting means 401 one side containing ammonia conversion lime set delivery pipe
Entrance 160 connects, and is on the other hand connected with the first medium entrance of heat exchanger E1 by pipeline 403, and the of heat exchanger E1
One media outlet is connected with the first medium entrance of heat exchanger E2 by pipeline 404, the first medium outlet of heat exchanger E2
It is connected with the entrance 140 on 100 top of stripper by pipeline 405.
The outlet of lye tank (vat) V1 is connected with the entrance of pump P3 by pipeline 406, and the outlet of pump P3 is by pipeline 407 and stripping
Entrance 120 in the middle part of tower 100 connects.
The outlet 110 of 100 bottom of stripper is connected by the second medium entrance of 408 heat exchanger E2 of pipeline, heat exchange
The second medium outlet of device E2 is connected with the entrance of pump P1 by pipeline 409, and the outlet of pump P1 passes through pipeline 410 and heat exchanger
The second medium entrance connection of E4, the second medium outlet connection waste water outlet tube 411 of heat exchanger E4.
Outlet 170 at the top of stripper 100 connects a sour gas outlet tube 412, and the entrance 150 on 100 top of stripper leads to
The outlet 220 that pipeline 412a and pump P2 are crossed with 200 I sections bottom of ammonia absorption tower is connected, the outlet 130 in the middle part of stripper 100
It is connected with the second medium entrance of heat exchanger E1 by pipeline 413, the second medium outlet of heat exchanger E1 is by pipeline 414
It is connected with the entrance 210 of 200 I sections bottom of ammonia absorption tower.
Outlet 260 at the top of 200 ii I section of ammonia absorption tower connects a fixed gas outlet tube 415；Ammonia absorption tower
Entrance 250 at the top of III sections 200 connects a desalination water inlet pipe 416.
240 one side of entrance in the middle part of 200 ii I section of ammonia absorption tower is connected in ammonia rectifying column 300 by pipeline 431
The entrance 320 in portion, on the other hand connects waste water outlet tube 411 by pipeline 432；Ammonia absorption tower 300 ii I section bottom goes out
Mouth 280 is connected to the entrance of pump P4 by pipeline 423.
On the one hand the outlet of pump P4 connects the entrance of heat exchanger E7 by pipeline 424a, and the outlet of heat exchanger E7 passes through
433 connecting pipeline 431 of pipeline, the entrance 350 on the other hand being connected in the middle part of ammonia rectifying column 300 by pipeline 425 are connected.
Outlet 330 at the top of ammonia rectifying column 300 connects the entrance of heat exchanger E6, heat exchanger E6 by pipeline 426
Outlet by pipeline 427 connect a storage tank V2 entrance, storage tank V2 outlet by pipeline 428 connect pump P5 entrance, pump
On the one hand the outlet of P5 connects liquefied ammonia outlet tube 429, on the other hand connects entering at the top of ammonia rectifying column 300 by pipeline 430
Mouth 340.
It is divided into two parts from converting means lime set containing ammonia conversion, a part heats up through heat exchanger E1, E2 heat exchange
100 middle and upper part of stripper is entered afterwards.100 tower bottom reboiler E3 of stripper is passed through a certain amount of low pressure steam, the change to entering tower
Change lime set to be stripped.100 bottom of towe of stripper is that qualified purification and condensation liquid delivers to downstream dress after heat exchanger E4 coolings
Put.
Most of H2S、CO2Distillate from stripper overhead etc. component, part H2S、NH3、H2The components such as O from lateral line withdrawal function, so
After enter back into heat exchanger E1 and be cooled to 110～120 DEG C and enter into 200 I sections bottom of ammonia absorption tower.From ammonia absorption tower
The liquid phase of 200 ii section bottoms is entered at the top of 200 I sections of ammonia absorption tower by action of gravity, and cooling is absorbed from ammonia
200 I sections bottom rising part H of absorption tower2S。
The gas phase absorbed through cooling enters into 200 ii section bottom of ammonia absorption tower by chimney plate, net from part
Change condensed fluid to deliver at the top of 200 ii section of ammonia absorption tower, cooling absorbs 200 ii section bottom rising part of ammonia absorption tower
H2S.The gas phase absorbed through cooling enters into 200 ii I section bottom of ammonia absorption tower by chimney plate.Then desalination is adopted again
Water and Partial cleansing condensed fluid are delivered to cooling at the top of ammonia absorption tower ii I section and are absorbed on 200 ii section bottom of ammonia absorption tower
Rise part NH3。
Also returned in the middle part of ii I section after cooling from the qualified partial ammonia water of 200 ii I section bottom of ammonia absorption tower
Used as absorbent, another part sends into ammonia rectifying column 300 as charging.300 overhead vapours Jing of ammonia rectifying column cools down water-cooled
Ammonia lime set is obtained after solidifying, part ammonia lime set Jing pump P5 is returned to as backflow at the top of ammonia rectifying column 300, and another part ammonia coagulates
Liquid is delivered to out-of-bounds as product liquefied ammonia.Tower reactor reboiler E7 of ammonia rectifying column 300 passes through middle pressure steam or high-temperature position technique thing
Stream provides heat, the waste water for meeting environmental requirement and stripper tower reactor waste water combination cooling of the extraction of 300 tower reactor of ammonia rectifying column
After send battery limit (BL).
This kind of flow setting is applied to transformation operating mode, when stripper 100 and ammonia absorption tower 200 is constructed finishes, such as
Factory then can individually increase ammonia rectifying column T3 for processing from ammonia absorption tower for improving product Production of Value liquefied ammonia
Ammonia can meet needs.And two Tower Systems above are substantially without transformation.Its shortcoming is that ammonia rectifying column need to be using height
The middle pressure steam of grade provides heat, it is adaptable to transform device, changes less to foregoing apparatus.
Claims (1)
1. it is a kind of containing ammonia convert lime set waste water making pure liquefied ammonia device, it is characterised in that including stripper, ammonia absorption tower and
Ammonia rectifying column；
The bottom of the stripper is provided with stripper tower bottom reboiler and first outlet, and middle part is provided with first entrance and second
Outlet, top are provided with second and third entrance, and top is provided with the 4th entrance and the 3rd outlet；
The ammonia absorption tower I sections bottom is provided with the 5th entrance and the 4th outlet, sets at the top of ammonia absorption tower ii section
The 6th entrance is equipped with, the 7th entrance, the ammonia absorption tower ii I section top in the middle part of the ammonia absorption tower ii I section, is provided with
Portion is provided with the 8th entrance and the 5th outlet；Or the ammonia absorption tower I sections bottom is provided with the 5th entrance and the 4th and goes out
Mouthful, the 6th entrance is provided with the top of ammonia absorption tower ii section, in the middle part of the ammonia absorption tower ii section, the 9th is provided with
Entrance, is provided with the 7th entrance, is provided with the top of the ammonia absorption tower ii I section in the middle part of the ammonia absorption tower ii I section
8th entrance and the 5th outlet；The ammonia absorption tower ii I section bottom is provided with the 6th outlet；
The bottom of towe of the ammonia rectifying column is provided with tower reactor reboiler and the 7th outlet, is provided with the tenth in the middle part of ammonia rectifying column
Entrance or the tenth entrance and the 11st entrance, are provided with the 8th outlet and the 12nd entrance at the top of the ammonia rectifying column；
On the one hand pass through the first pipeline and the 4th of the stripper top from converting means delivery pipe containing ammonia conversion lime set
Entrance connects, and is on the other hand connected with the first medium entrance of first heat exchanger by the second pipeline, first heat exchanger
First medium outlet is connected with the first medium entrance of second heat exchanger by the 3rd pipeline, first Jie of second heat exchanger
Matter outlet is connected with the second entrance on the stripper top by the 4th pipeline；
The outlet of lye tank (vat) is connected with the entrance of the first pump by the 5th pipeline, the outlet of the first pump by the 6th pipeline with it is described
First entrance connection in the middle part of stripper；The first outlet of stripper bottom is connected with the entrance of the second pump by the 7th pipeline,
The outlet of second pump is connected with the second medium entrance of the second heat exchanger by the 8th pipeline, and described second is hot
The second medium outlet of exchanger is connected with the entrance of the 3rd heat exchanger by the 9th pipeline, and the outlet of the 3rd heat exchanger connects
Connect waste water outlet tube；
3rd outlet one sour gas outlet tube of connection of stripper top, the 3rd entrance on stripper top by the tenth pipeline and
4th outlet of the 3rd pump and the ammonia absorption tower I sections bottom be connected, and the second outlet in the middle part of the stripper passes through the
11 pipelines are connected with the second medium entrance of the first heat exchanger, and the second medium outlet of the first heat exchanger is logical
The 5th entrance that the 12nd pipeline is crossed with the ammonia absorption tower I sections bottom is connected；
The 5th outlet one fixed gas outlet tube of connection at the top of the ammonia absorption tower ii I section；Ammonia absorption tower ii I
8th entrance at section top connects a desalination water inlet pipe；
The 7th entrance in the middle part of the ammonia absorption tower ii I section connects first Jie of the 5th heat exchanger by the 13rd pipeline
Matter entrance, the first medium outlet of the 5th heat exchanger connect the first of the 4th heat exchanger by the 14th pipeline
Medium inlet, the first medium outlet of the 4th heat exchanger connect the ammonia rectifying tower bottom by the 15th pipeline
7th outlet connection；The 6th entrance at the top of the ammonia absorption tower ii section is connected to first pump by the 16th pipeline
Outlet；The 6th entrance at the top of the ammonia absorption tower ii section also connects the waste water outlet tube by the 17th pipeline
On, the 9th entrance in the middle part of the ammonia absorption tower ii section is also connected on the 13rd pipeline by the 18th pipeline；Institute
The 6th outlet for stating ammonia absorption tower ii I section bottom is connected to the entrance of the 4th pump, the 4th pump by the 19th pipeline
Outlet connect the second medium entrance of the 4th heat exchanger by the 20th pipeline, the second of the 4th heat exchanger
Media outlet connects the tenth entrance connection in the middle part of the ammonia rectifying column by the 21st pipeline；
Or, on the one hand the 7th entrance in the middle part of the ammonia absorption tower ii I section connects described useless by the 22nd pipeline
Water delivery pipe, is on the other hand connected to the tenth entrance in the middle part of the ammonia rectifying column by the 23rd pipeline；The ammonia
The 6th entrance at the top of the ii section of absorption tower is connected on the 22nd pipeline by the 24th pipeline；The ammonia absorption
6th outlet of tower ii I section bottom is connected to the entrance of the 4th pump by the 19th pipeline, and the outlet of the 4th pump passes through
25th pipeline connects the entrance of the 5th heat exchanger, and the outlet of the 5th heat exchanger passes through the 26th pipeline
Connect on the 23rd pipeline, the outlet of the 5th heat exchanger also connects the ammonia essence by the 27th pipeline
Evaporate the 11st entrance in the middle part of tower；7th outlet at the ammonia rectifying tower bottom connects the waste water by the 28th pipeline
Outlet tube；
The 8th outlet at the top of the ammonia rectifying column connects the entrance of the 6th heat exchanger, institute by the 29th pipeline
The outlet for stating the 6th heat exchanger connects the entrance of a storage tank by the 30th pipeline, and the outlet of the storage tank passes through the 31st
Pipeline connects the entrance of the 5th pump, and on the one hand the outlet of the 5th pump connects liquefied ammonia outlet tube, on the other hand by the 30th
Two pipelines connect the 12nd entrance at the top of the ammonia rectifying column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125254.7U CN206126864U (en) | 2016-10-15 | 2016-10-15 | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125254.7U CN206126864U (en) | 2016-10-15 | 2016-10-15 | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206126864U true CN206126864U (en) | 2017-04-26 |
Family
ID=58573542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621125254.7U Withdrawn - After Issue CN206126864U (en) | 2016-10-15 | 2016-10-15 | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206126864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395858A (en) * | 2016-10-15 | 2017-02-15 | 上海国际化建工程咨询有限公司 | Device and method for preparing pure liquid ammonia from ammonia-containing conversion condensate wastewater |
| CN108264060A (en) * | 2018-03-19 | 2018-07-10 | 上海众仕工程技术有限公司 | A kind of special ammonia distillation ammonia-preparing device of energy-saving denitration |
| CN114368761A (en) * | 2022-03-23 | 2022-04-19 | 山东海科新源材料科技股份有限公司 | Combined preparation device and method for liquid ammonia and ammonia water |
-
2016
- 2016-10-15 CN CN201621125254.7U patent/CN206126864U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395858A (en) * | 2016-10-15 | 2017-02-15 | 上海国际化建工程咨询有限公司 | Device and method for preparing pure liquid ammonia from ammonia-containing conversion condensate wastewater |
| CN106395858B (en) * | 2016-10-15 | 2018-09-28 | 上海国际化建工程咨询有限公司 | A kind of method and device converting lime set waste water making pure liquefied ammonia containing ammonia |
| CN108264060A (en) * | 2018-03-19 | 2018-07-10 | 上海众仕工程技术有限公司 | A kind of special ammonia distillation ammonia-preparing device of energy-saving denitration |
| CN108264060B (en) * | 2018-03-19 | 2023-12-29 | 上海众仕环境科技股份有限公司 | Energy-saving ammonia water distillation ammonia production device special for denitration |
| CN114368761A (en) * | 2022-03-23 | 2022-04-19 | 山东海科新源材料科技股份有限公司 | Combined preparation device and method for liquid ammonia and ammonia water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101597092B (en) | Method for treating coal gasification wastewater by single tower alkali injection and pressurization steam stripping | |
| CN101597124B (en) | Method for treating coal gasification wastewater containing phenol and ammonia | |
| CN107235593A (en) | The system and method that a kind of coal gasification water system recovery ammonia is removed with sulphur | |
| CN101665309A (en) | Method for treating gasified waste water containing high-concentration phenol and ammonia | |
| CN105967425A (en) | Coal chemical industry grey water flashing treatment system capable of reducing ammonia accumulation and coal chemical industry grey water flashing treatment process capable of reducing ammonia accumulation | |
| CN104926012B (en) | Treatment process for high-concentration ammonium-nitrogen waste water | |
| CN104445272A (en) | Comprehensive recycling method of transformation gas condensation liquid containing ammonia gas and carbon dioxide | |
| CN206126864U (en) | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water | |
| CN105195005B (en) | Coking flue gas and ammonia-containing water integrated treatment economic benefits and social benefits cleaning system | |
| CN106587233A (en) | Comprehensive utilization method for coal chemical industry gasified black water high-temperature flashing steam | |
| CN105776394A (en) | Coal gas deamination and residual ammonia liquor vacuum distillation integrated production method and system | |
| CN107823906A (en) | A kind of raw gas conversion process condensate liquid stripping processing system and method | |
| CN104926009B (en) | Ammonia-nitrogen wastewater treatment system | |
| CN104445474B (en) | A kind of conversion lime set waste water containing ammonia produces method and the device of weak ammonia | |
| CN106395858B (en) | A kind of method and device converting lime set waste water making pure liquefied ammonia containing ammonia | |
| CN201545718U (en) | Urea process condensed fluid treatment device | |
| CN206408037U (en) | A kind of coal chemical industry buck flash distillation process system for reducing ammonia accumulation | |
| CN204342463U (en) | A kind of device producing weak ammonia containing ammonia conversion lime set waste water | |
| CN216712015U (en) | Circulating system for recycling waste heat of ammonia water for potassium carbonate desulfurization regeneration heat source | |
| CN208898682U (en) | A kind of circulating water for gasification high-efficiency comprehensive utilization controlling device | |
| CN203916389U (en) | Low-temperature flue gas synchronized desulfuring and denitrifying equipment | |
| CN207307614U (en) | A kind of coking ammonia water concentrate removal of impurities is used for equipment for denitrifying flue gas | |
| CN210964335U (en) | Comprehensive synergistic treatment system for calcination tail gas of titanium dioxide rotary kiln | |
| CN203612971U (en) | Ammonia distillation device | |
| CN208103980U (en) | A kind of lurgi gasifier gasifying smokeless device for coal coal gas water treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170426 Effective date of abandoning: 20180928 |