CN207498095U - A kind of raw coke oven gas washes comprehensive utilization device - Google Patents
A kind of raw coke oven gas washes comprehensive utilization device Download PDFInfo
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- CN207498095U CN207498095U CN201721509902.3U CN201721509902U CN207498095U CN 207498095 U CN207498095 U CN 207498095U CN 201721509902 U CN201721509902 U CN 201721509902U CN 207498095 U CN207498095 U CN 207498095U
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Abstract
The utility model is related to a kind of raw coke oven gas washes comprehensive utilization devices, include at least：Gas compression pump, the first gas-liquid separator, scrubbing tower, ammonia-containing water accumulator tank, the second gas-liquid separator, ammonia still, ammonium hydroxide collecting box, ammonia scrubber and reuse water tank；The gas compression pump gas outlet is connected with the air inlet of the first gas-liquid separator bottom, and gas outlet is connected with scrubbing tower air inlet at the top of the first gas-liquid separator, and scrubbing tower gas outlet is connected with the second gas-liquid separator air inlet；The sewage draining exit of first gas-liquid separator, scrubbing tower and the second gas-liquid separator is connected by pipeline with Sewage treatment slot entrance；The outlet of Sewage treatment slot is connected with ammonia still inlet, and ammonia still gas outlet is connected with ammonia scrubber air inlet, and the liquid outlet of ammonia scrubber is connected with ammonium hydroxide collecting box；Ammonia still liquid outlet is connected with reuse tank entry, and reuse tank outlet connects respectively with gas-liquid separator inlet and the first inlet of scrubbing tower.It reduces production cost.
Description
Technical field
The utility model is related to a kind of waste water utilization device, particularly a kind of raw coke oven gas washes comprehensive utilization device.
Belong to coal chemical industry machinery equipment field.
Background technology
For the raw coke oven gas extraction hydrogen of current semi-coke device production for coal tar hydrogenating raw materials for production, stripping gas is used as gold
Belong to magnesium production fuel, stripping gas more than needed mixes burning for electricity generation boiler.In process of production, ammonia and amounts of ammonium salt are higher in coal gas,
More than highest ammonia content 2000ppm causes PSA device for producing hydrogen ammonia and ammonium salt scrubbing tower water-washing desalting load to increase, and demineralized water disappears
Consumption is big.In coal gas treating capacity increase, a large amount of demineralized water is needed to carry out raw coke oven gas water-washing desalting, ammonia-containing water is used after washing
It in semi-coke ammonia water replenishment, is limited by ammonium hydroxide pond rate of water make-up, demineralized water can not be used largely, and the raw coke oven gas ammonia after washing is caused to contain
Amount is higher, and potential threat is caused to PSA hydrogen generating systems, if ammonia content cannot be controlled effectively, adsorbent can be caused to block, absorption effect
The problems such as fruit reduces, and hydrogen manufacturing load can not be promoted, influences hydrocracking unit production run load.It is produced simultaneously in gas washing
Raw ammonia-containing water reuse semi-coke ammonia water replenishment, increases semi-coke ammonium hydroxide pond ammonium salt concentration, long-term reuse can cause semi-coke ammonia
The problems such as pond grease does not detach, and the water content in the coal tar of extraction is exceeded.
Utility model content
To solve the above-mentioned problems, a kind of raw coke oven gas washes comprehensive utilization device of the purpose of this utility model, the dress
It puts and utilizes the highly concentrated ammonia after gas washing and ammonium salt washings through ammonia still process Posterior circle, the use of demineralized water can be reduced, hence it is evident that drop
Low production cost, the ammonia and ammonium salt steamed use for the power plant ammonia process of desulfurization, increase the yield of sulfate of ammoniac, saved liquefied ammonia
Use, while saved sewage disposal expense.
The technical solution of the utility model is：A kind of raw coke oven gas washes comprehensive utilization device, it is characterized in that：At least wrap
It includes：Gas compression pump, the first gas-liquid separator, scrubbing tower, ammonia-containing water accumulator tank, the second gas-liquid separator, ammonia still, ammonium hydroxide
Collecting box, ammonia scrubber and reuse water tank；The air inlet of the gas compression pump gas outlet and the first gas-liquid separator bottom
Mouth connection, the first gas-liquid separator top gas outlet are connected with scrubbing tower air inlet, scrubbing tower gas outlet and the second gas-liquid separation
Device air inlet connects；The sewage draining exit of first gas-liquid separator, scrubbing tower and the second gas-liquid separator is returned by pipeline and waste water
Receive the connection of slot entrance；The outlet of Sewage treatment slot is connected with ammonia still inlet, ammonia still gas outlet and ammonia scrubber air inlet
Connection, the liquid outlet of ammonia scrubber are connected with ammonium hydroxide collecting box；Ammonia still liquid outlet is connected with reuse tank entry, recycle-water
Case outlet connects respectively with gas-liquid separator inlet and the first inlet of scrubbing tower.
Ammonium hydroxide collecting box row tucks in mouth and is connected with power plant desulfurizer by pipeline, and ammonium hydroxide collecting box is also associated with the
Two production water pipes.
The ammonia scrubber is connected with the first production water pipe.
It is set on the pipeline connected between the gas compression pump gas outlet and the air inlet of the first gas-liquid separator bottom
There is pressure gauge.
The first gas-liquid separator lower end gas outlet is pumped by 1# and is connected with gas compression pump air inlet.
The sewage draining exit of the scrubbing tower is connected by 2# the second inlets pumped respectively with Sewage treatment slot and scrubbing tower.
The Sewage treatment slot outlet is connected between ammonia still inlet by 3# pumps；The ammonia still is also associated with steaming
Steam pipe road, the jet chimney are low-pressure steam pipeline, and pressure is less than 6MPa, and feed temperature is 150 degree.
The reuse tank outlet is connected by 4# pumps with gas-liquid separator inlet and the first inlet of scrubbing tower respectively.
The exit of the 4# pumps is connected with desalination waterpipe by check valve.
Between first gas-liquid separator, the sewage draining exit of scrubbing tower and the second gas-liquid separator and Sewage treatment slot entrance
Connecting pipe is arranged at underground.
The advantages of the utility model：The utility model utilizes ammonia-containing water after gas washing through ammonia still process Posterior circle, will be former
Waste water washs after design desalination water washing is changed to ammonia still process, can substantially reduce the consumption of demineralized water, while extract in ammonia-containing water water
Ammonia, through cooling recycling 10%-15% ammonia liquor, for power plant desulfurization denitration use, reduce production cost.
The utility model is transformed in the case where fully considering production cost, operational safety by rational technique, realizes drop
Low raw coke oven gas ammonia content ensures hydrogen producer safe operation, while reaches semi-coke ammonium hydroxide pit level security control object, realizes useless
The purpose that water recycles.
The utility model is described in further details, but not as to the utility model below by specific embodiment
It limits.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
In figure:1st, gas compression pump；2nd, pressure gauge；3rd, 1# is pumped；4th, the first gas-liquid separator；5th, check valve；6th, scrubbing tower；
7th, 2# is pumped；8th, Sewage treatment slot；9th, 3# is pumped；10th, the second gas-liquid separator；11st, ammonia still；12nd, ammonium hydroxide collecting box；13rd, ammonia
Absorber；14th, reuse water tank；15th, 4# is pumped；16th, the first production water pipe；17th, the second production water pipe；18th, jet chimney；19th, it removes
Brine pipeline；20th, power plant desulfurizer.
Specific embodiment
Embodiment 1
A kind of raw coke oven gas washes comprehensive utilization device includes at least：Gas compression pump 1, is washed first gas-liquid separator 4
It washs tower 6, ammonia-containing water accumulator tank 8, the second gas-liquid separator 10, ammonia still 11, ammonium hydroxide collecting box 12, ammonia scrubber 13 and returns
With water tank 14；1 gas outlet of gas compression pump is connected with the air inlet of 4 bottom of the first gas-liquid separator, the first gas-liquid point
It is connected from 4 top gas outlet of device with 6 air inlet of scrubbing tower, 6 gas outlet of scrubbing tower is connected with 10 air inlet of the second gas-liquid separator；
First gas-liquid separator 4,6 and second gas-liquid separator 10 of scrubbing tower sewage draining exit pass through 8 entrance of pipeline and Sewage treatment slot
Connection；The outlet of Sewage treatment slot 8 is connected with 11 inlet of ammonia still, and 11 gas outlet of ammonia still connects with 13 air inlet of ammonia scrubber
Logical, the liquid outlet of ammonia scrubber 13 is connected with ammonium hydroxide collecting box 12；11 liquid outlet of ammonia still is connected with 14 entrance of reuse water tank,
Reuse water tank 14 exports to be connected respectively with 4 inlet of gas-liquid separator and 6 first inlet of scrubbing tower.
Embodiment 2
As shown in Figure 1, a kind of raw coke oven gas washes comprehensive utilization device includes：Gas compression pump 1, the first gas-liquid separation
Device 4, scrubbing tower 6, ammonia-containing water accumulator tank 8, the second gas-liquid separator 10, ammonia still 11, ammonium hydroxide collecting box 12, ammonia scrubber
13 and reuse water tank 14；1 gas outlet of gas compression pump is connected with the air inlet of 4 bottom of the first gas-liquid separator, and first
4 top gas outlet of gas-liquid separator is connected with 6 air inlet of scrubbing tower, 6 gas outlet of scrubbing tower and 10 air inlet of the second gas-liquid separator
Mouth connection；First gas-liquid separator 4,6 and second gas-liquid separator 10 of scrubbing tower sewage draining exit pass through pipeline and Sewage treatment
8 entrance of slot connects；The outlet of Sewage treatment slot 8 is connected with 11 inlet of ammonia still, 11 gas outlet of ammonia still and ammonia scrubber 13
Air inlet connects, and the liquid outlet of ammonia scrubber 13 is connected with ammonium hydroxide collecting box 12；11 liquid outlet of ammonia still and reuse water tank 14
Entrance connects, and reuse water tank 14 exports to be connected respectively with 4 inlet of gas-liquid separator and 6 first inlet of scrubbing tower.
12 row of ammonium hydroxide collecting box tucks in mouth and is connected with power plant desulfurizer 20 by pipeline, and ammonium hydroxide collecting box 12 also connects
It is connected to the second production water pipe 17.
The ammonia scrubber 13 is connected with the first production water pipe 16.
It is set on the pipeline connected between 1 gas outlet of gas compression pump and the air inlet of 4 bottom of the first gas-liquid separator
It is equipped with pressure gauge 2.Convenient for monitoring pressure.
First gas-liquid separator, the 4 lower end gas outlet is connected by 1# pumps 3 with 1 air inlet of gas compression pump.
The sewage draining exit of the scrubbing tower 6 is connected by 2# pumps 7 with the second inlet of Sewage treatment slot 8 and scrubbing tower 6 respectively
It is logical.The scrubbing tower 6 is ammonium salt scrubbing tower.
The Sewage treatment slot 8 is exported to be connected between 11 inlet of ammonia still by 3# pumps 9；The ammonia still 11 also connects
Jet chimney 18 is connected to, the jet chimney 18 is low-pressure steam pipeline, and pressure is less than 6MPa, and feed temperature is 150 degree.It adopts
Ammonia still process is stripped with low-pressure steam, since the boiling point of ammonia is relatively low, is easily vaporized, therefore good using low-pressure steam heating energy-saving effect,
Security performance is high.
The reuse water tank 14 outlet by 4# pump 15 respectively with 6 first feed liquor of 4 inlet of gas-liquid separator and scrubbing tower
Mouth connection.
The exit of the 4# pumps 15 is connected with desalination waterpipe by check valve 5.
First gas-liquid separator 4, the sewage draining exit of 6 and second gas-liquid separator 10 of scrubbing tower and Sewage treatment slot 8 enter
Connecting pipe is arranged at underground between mouthful.Ground space is saved in this way, and safe and reliable.
The course of work：Raw coke oven gas carries out gas-liquid separation after gas compression pump compresses, by the first gas-liquid separator, point
The ammonia-containing water of ammonia-containing water and the first gas-liquid separator after the washed tower washing of raw coke oven gas separated out flows automatically through underground piping
It is recycled to Sewage treatment slot；Coal gas after scrubbing tower washing is detached again into the second gas-liquid separator, the coal gas isolated
Into gas piping, the ammonia-containing water isolated is recycled to Sewage treatment slot through underground piping gravity flow；Sewage treatment slot contains ammonia
Waste water, which enters after ammonia still carries out ammonia still process, will contain ammonia density reduction, then send the waste water after reduction to reuse water tank；Ammonia still
Thick ammonia out enters ammonia scrubber, enters back into ammonium hydroxide collecting box, and passes through and produce water and be deployed into a concentration of 10-15% ammonia
After water, send to power plant desulfurizer.Power plant desulfurizer belongs to the prior art.Reuse water tank waste water is after desalination waterpipe
It is respectively fed to the first gas-liquid separator and scrubbing tower moisturizing, scrubber effluent is entered after moisturizing and is carried out by being recycled in scrubbing tower
Washing, is recycled after moisturizing into the first gas-liquid separator waste water by gas-liquid separator, to the ammonia in raw coke oven gas and ammonium salt group
Divide and carry out washing removing, after washing reaches certain index containing ammonia density, ammonia-containing water drains into underground sewage tube by blow-off pipe
Road is sent to underground Sewage treatment slot, realizes that ammonia-containing water recycles.
The device of the utility model carries out ammonia still process processing by the ammonia-containing water after being washed to raw coke oven gas, realizes ammonia-containing water
Comprehensive reutilization, reduce the consumption of demineralized water, reduce production cost.Demineralized water 18-20 ton hours can be saved per hour,
Demineralized water cost is about 20 yuan/ton, and day saves 9600 yuan/day of production cost；Ammonia-containing water saves sewage disposal link, dirt per ton
Cost of water treatment saves 38400 yuan/day of sewage disposal expense day according to 80 yuan/ton of calculating；The ammonia liquor of ammonia still process recycling is used to send out
Electric subsidiary factory's ammonia desulfuration equipment, flap portion export trade, produce daily 15% about 30 tons of ammonia liquor, 360 yuan/ton of ton ammonia liquor increases day by day
Add beneficial 10800 yuan/day；7.5 tons of ammonium sulfate yield can be increased daily, day increase by 2250 yuan of benefit, in summary benefit, daily
61050 yuan of effect can be created.
Highly concentrated ammonia-containing water does not need to be sent into semi-coke ammonium hydroxide pond simultaneously, and reaching, which reduces ammonium hydroxide pit level, controls risk, profit
Carrying out water-washing desalting with waste water after ammonia still process can effectively control raw coke oven gas ammonia content to be no more than 200ppm, ensure that hydrogen manufacturing adsorption system is long
Cycle stability is run.
The component and the well-known components and common structure of the structure category industry or common hand that the present embodiment does not describe in detail
Section, does not describe one by one here.
Claims (10)
1. a kind of raw coke oven gas washes comprehensive utilization device, it is characterized in that：It includes at least：Gas compression pump (1), the first gas-liquid
Separator (4), scrubbing tower (6), ammonia-containing water accumulator tank (8), the second gas-liquid separator (10), ammonia still (11), ammonium hydroxide are collected
Case (12), ammonia scrubber (13) and reuse water tank (14)；Gas compression pump (1) gas outlet and the first gas-liquid separator
(4) the air inlet connection of bottom, the first gas-liquid separator (4) top gas outlet are connected with scrubbing tower (6) air inlet, scrubbing tower
(6) gas outlet is connected with the second gas-liquid separator (10) air inlet；First gas-liquid separator (4), scrubbing tower (6) and the second gas-liquid
The sewage draining exit of separator (10) is connected by pipeline with Sewage treatment slot (8) entrance；Sewage treatment slot (8) exports and ammonia still
(11) inlet connects, and ammonia still (11) gas outlet is connected with ammonia scrubber (13) air inlet, and ammonia scrubber (13) go out
Liquid mouth is connected with ammonium hydroxide collecting box (12)；Ammonia still (11) liquid outlet is connected with reuse water tank (14) entrance, reuse water tank (14)
Outlet connects respectively with gas-liquid separator (4) inlet and (6) first inlet of scrubbing tower.
2. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The ammonium hydroxide is collected
Case (12) row tucks in mouth and is connected with power plant desulfurizer (20) by pipeline, and ammonium hydroxide collecting box (12) is also associated with the second production water
It manages (17).
3. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The ammonia absorbs
Device (13) is connected with the first production water pipe (16).
4. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The gas compression
Pressure gauge (2) is provided on the pipeline connected between machine (1) gas outlet and the air inlet of the first gas-liquid separator (4) bottom.
5. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：First gas-liquid
Separator (4) lower end gas outlet pumps (3) by 1# and is connected with gas compression pump (1) air inlet.
6. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The scrubbing tower
(6) sewage draining exit pumps second inlet of (7) respectively with Sewage treatment slot (8) and scrubbing tower (6) by 2# and connects.
7. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The Sewage treatment
Slot (8) outlet is connected with pumping (9) by 3# between ammonia still (11) inlet；The ammonia still (11) is also associated with jet chimney
(18), the jet chimney (18) is low-pressure steam pipeline, and pressure is less than 6MPa, and feed temperature is 150 degree.
8. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：The reuse water tank
(14) outlet is connected by 4# pumps (15) with gas-liquid separator (4) inlet and (6) first inlet of scrubbing tower respectively.
9. a kind of raw coke oven gas washes comprehensive utilization device according to claim 8, it is characterized in that：The 4# pumps (15)
Exit desalination waterpipe is connected with by check valve (5).
10. a kind of raw coke oven gas washes comprehensive utilization device according to claim 1, it is characterized in that：First gas
It is connected between the sewage draining exit of liquid/gas separator (4), scrubbing tower (6) and the second gas-liquid separator (10) and Sewage treatment slot (8) entrance
Pipeline is arranged at underground.
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| CN201721509902.3U CN207498095U (en) | 2017-11-14 | 2017-11-14 | A kind of raw coke oven gas washes comprehensive utilization device |
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| CN201721509902.3U CN207498095U (en) | 2017-11-14 | 2017-11-14 | A kind of raw coke oven gas washes comprehensive utilization device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726602A (en) * | 2018-08-06 | 2018-11-02 | 陕西东鑫垣化工有限责任公司 | Coal tar hydrogenating production wastewater treatment system |
| CN114854459A (en) * | 2022-03-29 | 2022-08-05 | 广东韶钢松山股份有限公司 | Raw coke oven gas treatment device and treatment system |
| CN108726602B (en) * | 2018-08-06 | 2024-08-02 | 陕西东鑫垣化工有限责任公司 | Coal tar hydrogenation wastewater treatment system |
-
2017
- 2017-11-14 CN CN201721509902.3U patent/CN207498095U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726602A (en) * | 2018-08-06 | 2018-11-02 | 陕西东鑫垣化工有限责任公司 | Coal tar hydrogenating production wastewater treatment system |
| CN108726602B (en) * | 2018-08-06 | 2024-08-02 | 陕西东鑫垣化工有限责任公司 | Coal tar hydrogenation wastewater treatment system |
| CN114854459A (en) * | 2022-03-29 | 2022-08-05 | 广东韶钢松山股份有限公司 | Raw coke oven gas treatment device and treatment system |
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