CN108148637A - A kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process - Google Patents
A kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process Download PDFInfo
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- CN108148637A CN108148637A CN201810163962.7A CN201810163962A CN108148637A CN 108148637 A CN108148637 A CN 108148637A CN 201810163962 A CN201810163962 A CN 201810163962A CN 108148637 A CN108148637 A CN 108148637A
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- slag
- tail gas
- crude benzol
- slag ladle
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/16—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids
- C10K1/18—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids hydrocarbon oils
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/02—Removal of water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of environment-friendly type clean manufacturing crude benzol slag-draining device and processes, be related to regenerating wash oil technical field, solve the problems, such as the pollution of deslagging in the prior art environment, the pernicious gas of discharge and high-temperature steam endanger employee personal safety and deslagging utilization rate it is low.The technical solution used for：High pressure sprinkler is provided in the tank body of slag ladle；Slag ladle bottom end side is also associated with retracting device；The top of slag ladle connects tail gas cleaning system by exhaust pipe；The process includes the following steps：Start-up, process operation stage and shutdown phase；The discharge of pernicious gas can be effectively reduced by the device and process, has not only ensured the personal safety of employee, but also increase the performance of enterprises.
Description
Technical field
The present invention relates to regenerating wash oil technical field, specifically a kind of environment-friendly type clean manufacturing crude benzol slag-draining device and
Process.
Background technology
In coke oven gas purification Product recycling technique, the benzene absorbed in coal gas is inversely contacted with coal gas using washing oil, is inhaled
Washing oil after receipts benzene is known as rich oil, and rich oil is beaten with slightly rich oil pump to rich oil slot in tower, cold with big rich oil pumped warp let-off crude benzol
Solidifying cooler exchanges heat with the crude benzene vapor that debenzolizing tower is ejected, and rich oil is preheated to 60 DEG C, into poor oil-rich heat exchanger, with de- benzene
The oil-poor heat exchange of heat afterwards is warming up to 130 DEG C, then is distilled through diamond heating to entering debenzolizing tower after 185 DEG C, tower top effusion it is thick
Benzene vapour is after the cooling of crude benzol condensate cooler, into crude benzol oil water separator.The crude benzol isolated enters crude benzol backflash, portion
Divide by the use of crude benzol reflux and be pumped to tower top as reflux, remaining enters crude benzol medial launder, then is pumped to oil depot workshop section with crude benzol product.
Traditional coke-oven plant Hua Chan workshops to crude benzol recovery process in washing benzene and taking off the operating process of benzene, the quality of circulating washing oil
It runs down.To ensure that circulating washing oil keeps required quality standard, using wash oil regenerator will the oil-poor progress of part heat again
It is raw.Oil-poor middle crude benzol mass fraction 0.4% (oil-poor middle crude benzol composition mass fraction：Benzene 2.7%；Toluene 19%；Dimethylbenzene
31%；Solvent naphtha 47.3%), the 1.5-2% of oil-poor amount of regeneration for circulating washing oil amount or so is heated with 350 DEG C of superheated steams, steamed
The oil and gas gone out enters debenzolizing tower, the higher boiling polymer of regenerator bottoms and crude benzol residue, is periodically discharged by pressure in equipment residual
Slag bath is sent to the use of coal yard reflux coking.When deslagging is carried out in this production process, slag-discharging valve opening is immediately discharged to residue
The components such as non-methane total hydrocarbons, phenols, benzo [a] pyrene, hydrogen cyanide, ammonia, hydrogen sulfide, benzene are contained in pond in deslagging steam.Existing equipment
It is had the disadvantage that in tapping process：1st, traditional deslagging is outdoor discharge, and deslagging steam diffusion area is wide, peculiar smell is big,
In containing various air pollutants, odorant pollutant, water environment pollution object, site environment can be polluted；2nd, mistake during deslagging
For hot steam temperature up to 250 DEG C or so, employee be easy to cause scald when operating；Meanwhile wherein contain hydrogen cyanide (MAC 1mg), ammonia
The harmful substance such as (PC-STEL 30mg), hydrogen sulfide (MAC 10mg), benzene (PC-STEL 10mg), according to practical inspection
It surveys as a result, more than 3 to 5 times of the occupational hazards limit value of national Specification, there is the risk for causing employee's cooupational intoxication, no
Conducive to the health of produced on-site worker；3rd, by crude benzol residue deliver coal field return match, can cause scene generate solid waste, formed it is secondary
Pollution, and crude benzol residue recycles the heavy constituent substance of generation for washing oil for a long time, washing oil is gained after tar fractionation, and crude benzol residue is used
It is returned in coal yard with comprehensive utilization not enough, leads to the problem of waste.
Invention content
The technical assignment of the present invention is for above deficiency, provides a kind of environment-friendly type clean manufacturing crude benzol slag-draining device and work
Process can solve the person that deslagging pollution environment, the pernicious gas of discharge and high-temperature steam in the prior art endanger employee
The problem of safety and low deslagging utilization rate.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of environment-friendly type clean manufacturing crude benzol slag-draining device, including regenerator, slag ladle, slag-discharging valve and residue collecting pit,
It is connected between the slag-drip opening of regenerator and slag ladle by scum pipe, the bottom end of slag ladle is by connecting scum pipe and residue collecting pit phase
Even, it is additionally provided with slag-discharging valve on scum pipe；Oil inlet valve is provided on regenerator, steam-heating pipe is provided in regenerator；
High pressure sprinkler is provided in the tank body of slag ladle；Slag ladle bottom end side is also associated with retracting device；Pass through tail at the top of slag ladle
Feed channel connects tail gas cleaning system.
High pressure sprinkler includes spray line, high-pressure spraying pump and closed underground pond, multipair spray line and is symmetrically mounted on slag
The both sides of top tank structure；Spray line, high-pressure spraying pump, which are connected with closed underground pond by pipe gravity flow pipeline, to be formed high pressure sprinkling and closes back
Road.
Multiple corrosion-resistant stainless steel spiral nozzles are mounted on spray line.
Retracting device includes tar extraction element and crude benzol Slag recovering device, under tar extraction element is included hermetically
Pond, submerged pump and mechanical settling tank, closed underground pond, submerged pump and mechanical settling tank are by recycling spray water conveyance conduit
Connection forms tar extraction loop；Crude benzol Slag recovering device includes residue collecting pit, residue conveys steam jacket pipe,
Slag recovering pumps and tar ammonia underground tank, passes through residue between residue collecting pit, Slag recovering pump and tar ammonia underground tank
Conveying steam jacket pipe connects to form crude benzol Slag recovering loop.
The top of slag ladle is tapered or pyramid type structure the slag ladle in side, is provided with blowdown stack at the top of slag ladle, discharges cigarette
Chimney is connected with exhaust pipe；On blowdown stack exhaust pipe valve is additionally provided with the junction of exhaust pipe.
Tail gas cleaning system includes tail gas air-introduced machine, cleans circulated sprinkling pump and tail gas washing column, and tail gas air-introduced machine drives
Lower part of the tail gas discharged from blowdown stack through exhaust pipe sucking tail gas washing column；At least two clean circulated sprinkling pumps point
It does not connect to form closed circulation with tail gas washing column by pipeline.
Demister and light porcelain packing are additionally provided with inside tail gas washing column, demister is located at the exhaust emissions of tail gas washing column
At mouthful；Light porcelain packing is located at the lower section of demister, and is arranged on the middle part of tail gas washing column.
The pipeline input terminal that each clean circulated sprinkling pump is connected is arranged on the lower part of tail gas washing column, output terminal setting
On the top of tail gas washing column.
A kind of environment-friendly type crude benzol deslagging process, the crude benzol slag-draining device are clear for any environment-friendly type in above-mentioned
Clean production crude benzol slag-draining device, the process include the following steps：
(1), start-up；
(2), the process operation stage；
(3), shutdown phase.
In the step (1), start-up includes the following steps：
1., check slag ladle sealing it is intact；
2., check that high-pressure spraying pump is intact, check spray line and corrosion-resistant stainless steel spiral nozzle without blocking；
3., check exhaust gas purification system operation it is intact；
4., before deslagging, it is intact to check that each equipment in crude benzol slag-draining device checks, and close the slag ladle door on slag ladle；
5., to residue conveying steam jacket pipe preheat, and carry out steam blowing；
In the step (2), the process operation stage includes the following steps：
1., be first shut off the oil inlet valve of regenerator, superheated steam is passed through into regenerator, gradually by temperature in regenerator
250 DEG C are heated to, reaches deslagging conditions；
2., open tail gas cleaning system exhaust pipe valve, tail gas air-introduced machine work, ensure slag ladle in be negative pressure
5kPa；
3., open high-pressure spraying pump, extract 10 meters locate closed underground pond in crude benzol separation water as flushing liquor, flushing liquor
Water temperature is 25 DEG C, and pressure is controlled in 0.3MPa ranges, and flow control is in 25m3/ h, the flushing liquor of extraction is through spray line from corrosion-resistant
It is sprayed in stainless steel spiral nozzle, continuous high pressure sprinkling is carried out to slag ladle；
4., while continuous high pressure is sprayed, open regenerator slag-discharging valve, start the deslagging into slag ladle, tapping process
The tail gas containing peculiar smell of middle generation introduces tail gas washing column by tail gas air-introduced machine, at the same time, starts two and cleans cycle spray
Leaching pump cleans the tail gas that circulated sprinkling pumping takes detergent remover to introduce in tail gas washing column tail gas air-introduced machine and carries out sprinkling washing,
Tail gas is by light porcelain packing and the filtering qualified discharge of demister；Residue after cooling is discharged into residue collecting pit
It is interior；
5., the cycle collected for closed underground pond spray mixed liquor, open submerged pump, be periodically sent to mechanization coke
Breakdown of oil slot extracts tar；
6., by residue collecting pit crude benzol residue collect, with Slag recovering pump through residue conveying steam jacket pipe give
To tar ammonia underground tank, and carry into tar pan tank after the static dehydration of high temperature melt and selling outside；
In the step (3), shutdown phase includes the following steps：
1., deslagging finish, close crude benzol slag-draining device in high pressure sprinkler and retracting device, regenerator is incorporated to de-
Benzene series is united, and is returned to normal production；
2., close tail gas cleaning system after five minutes, treat that temperature in slag ladle is down to 30 DEG C hereinafter, opening the slag ladle on slag ladle
Door, the recrement cleared up in slag ladle and the stopping state for checking spray line and corrosion-resistant stainless steel spiral nozzle；
3., close crude benzol slag-draining device.
The present invention a kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process compared to the prior art, have with
Lower advantageous effect：
1st, tail gas qualified discharge；Closed deslagging has prevented pollution of the outdoor discharge gas with foreign flavor to surrounding air, through excessively high
Deslagging steam after pressure sprinkling, cooling, peculiar smell obtain elimination early period, the row up to standard after top enters the processing of tail gas cleaning system
It puts, discharge gas meets related specification；
Specific testing result is as follows：
2nd, direct labor's safety and health guarantee；Deslagging finishes after ten minutes, and superheat steam temperature passes through closed height
Pressure sprinkling, temperature is down to 30 DEG C hereinafter, peculiar smell, the gas that is pernicious to people are down within standard prescribed limit in slag ladle in slag ladle,
Safety and health of the operative employee when clearing up residue are protected；
Air pollutants monitoring result is as follows in slag ladle：
3rd, subsidiary economic benefit；According to the crude benzol Production rate for producing 600000 tons of coke production scales per year, regenerating wash oil is calculated
Deslagging number can monthly increase by 15 tons or so of tar yield after transformation, can be monthly that company creates by 3500 yuan/ton of the market price
5.25 ten thousand yuan of benefit is made, is increased benefit in year more than 630,000 yuan.
Description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Attached drawing 1 is a kind of structure diagram of environment-friendly type clean manufacturing crude benzol slag-draining device.
In figure：1st, regenerator, 2, slag ladle, 3, slag-discharging valve, 4, residue collecting pit, 5, spray line, 6, high-pressure spraying pump, 7,
Closed underground pond, 8, corrosion-resistant stainless steel spiral nozzle, 9, submerged pump, 10, mechanical settling tank, 11, Slag recovering pump, 12,
Tar ammonia underground tank, 13, blowdown stack, 14, exhaust pipe valve, 15, tail gas air-introduced machine, 16, clean circulated sprinkling pump,
17th, tail gas washing column, 18, demister, 19, light porcelain packing, 20, residue conveying steam jacket pipe.
Specific embodiment
The invention will be further described in the following with reference to the drawings and specific embodiments.
Embodiment 1：
A kind of environment-friendly type clean manufacturing crude benzol slag-draining device of the present invention, including regenerator 1, slag ladle 2,3 and of slag-discharging valve
Residue collecting pit 4 is connected between the slag-drip opening of regenerator 1 and slag ladle 2 by scum pipe, and the bottom end of slag ladle 2 is by connecting deslagging
Pipe is connected with residue collecting pit 4, and slag-discharging valve 3 is additionally provided on scum pipe；Oil inlet valve, regenerator 1 are provided on regenerator 1
Inside it is provided with steam jacket pipe；Top is is provided with high pressure sprinkler, high pressure sprinkling in 2 tank body of slag ladle of pyramid type structure
Device includes the both sides that spray line 5, high-pressure spraying pump 6 and 7,2 pairs of spray lines 5 of closed underground pond are symmetrically mounted on 2 inner wall of slag ladle,
And 3 corrosion-resistant stainless steel spiral nozzles 8 are mounted on every spray line 5, spray line 5, high-pressure spraying pump 6 and hermetically under
Pond 7 connects to form high pressure sprinkling loop by pipe gravity flow pipeline；2 bottom end side of slag ladle is also associated with retracting device；Recycling dress
It puts including tar extraction element and crude benzol Slag recovering device, tar extraction element includes closed underground pond 7, submerged pump 9 and machine
Tool defecator 10, closed underground pond 7, submerged pump 9 and mechanical settling tank 10 connect shape by recycling spray water conveyance conduit
Coking oil extract loop；Crude benzol Slag recovering device includes residue collecting pit 4, Slag recovering pump 11, residue conveying steam
Heating muff 20 and tar ammonia underground tank 12 lead between residue collecting pit 4, Slag recovering pump 11 and tar ammonia underground tank 12
It crosses 20 connection of residue conveying steam jacket pipe and forms crude benzol Slag recovering loop；The top of slag ladle 2 is provided with discharge cigarette
Chimney 13, blowdown stack 13 are connected with exhaust pipe, and exhaust pipe is additionally provided with the junction of exhaust pipe on blowdown stack 13
Valve 14, exhaust pipe connection tail gas cleaning system, tail gas cleaning system include tail gas air-introduced machine 15, clean circulated sprinkling pump 16
With tail gas washing column 17, demister 18 and light porcelain packing 19 are additionally provided with inside tail gas washing column 17, demister 18 is located at tail gas
At the exhaust port of washing column 17；Light porcelain packing 19 is located at the lower section of demister 18, and is arranged in tail gas washing column 17
Portion；Tail gas air-introduced machine 15 drives lower part of the tail gas through exhaust pipe sucking tail gas washing column 17 discharged from blowdown stack 13；
Two clean circulated sprinkling pumps 16 connect to form closed circulation, and each clean by pipeline with tail gas washing column 17 respectively
The pipeline input terminal that circulated sprinkling pump 16 is connected is arranged on the lower part of tail gas washing column 17, and output terminal is arranged on tail gas washing column
17 top.
Embodiment 2：
A kind of environment-friendly type crude benzol deslagging process of the present invention, the process include start-up, process operation rank
Section and shutdown phase；
Start-up includes the following steps：
1., check slag ladle 2 seal it is intact；
2., check that high-pressure spraying pump is 6 intact, check spray line 5 and corrosion-resistant stainless steel spiral nozzle 8 without blocking；
3., check exhaust gas purification system operation it is intact；
4., before deslagging, it is intact to check that each equipment in crude benzol slag-draining device checks, and close the slag ladle door on slag ladle 2；
5., residue conveying steam jacket pipe 20 is preheated, and carry out steam blowing；
The process operation stage includes the following steps：
1., be first shut off the oil inlet valve of regenerator 1, superheated steam is passed through into regenerator 1, gradually will be in regenerator 1
Temperature is heated to 250 DEG C, reaches deslagging conditions；
2., open the exhaust pipe valve 14 of tail gas cleaning system, tail gas air-introduced machine 15 works, and ensures that in slag ladle 2 be negative
Press 5kPa；
3., open high-pressure spraying pump 6, extract the 10 meters of crude benzol located in closed underground pond 7 separation water as flushing liquor, spray
Liquid water temperature is 25 DEG C, and pressure is controlled in 0.3MPa ranges, and flow control is in 25m3/ h, the flushing liquor of extraction is through spray line 5 from resistance to
It is sprayed in corrosion stainless steel spiral nozzle 8, continuous high pressure sprinkling is carried out to slag ladle 2；
4., while continuous high pressure is sprayed, open regenerator 1 slag-discharging valve 3, start the deslagging into slag ladle 2, deslagging
The tail gas containing peculiar smell generated in the process introduces tail gas washing column 17 by tail gas air-introduced machine 15, at the same time, starts two and washes
Net circulation spray pump 16 cleans circulated sprinkling pump 16 and extracts the tail that detergent remover introduces tail gas air-introduced machine 15 in tail gas washing column 17
Gas carries out sprinkling washing, and tail gas is by light porcelain packing 19 and the filtering qualified discharge of demister 18；It is residual after cooling
Slag is discharged into residue collecting pit 4；
5., mixed liquor is sprayed for the obtained cycle of closed underground pond 7 collection, open submerged pump 9, be periodically sent to mechanization
Tar defecator 10 extracts tar；
6., by residue collecting pit 4 crude benzol residue collect, with Slag recovering pump 11 through residue convey steam jacket pipe
20 send to tar ammonia underground tank 12, and carry into tar pan tank after the static dehydration of high temperature melt and selling outside；
Shutdown phase includes the following steps：
1., deslagging finish, close crude benzol slag-draining device in high pressure sprinkler and retracting device, regenerator 1 is incorporated to
De- benzene series system, returns to normal production；
2., close tail gas cleaning system after five minutes, treat that temperature in slag ladle 2 is down to 30 DEG C hereinafter, opening the slag on slag ladle 2
Tank door, the recrement cleared up in slag ladle 2 and the stopping state for checking spray line 5 and corrosion-resistant stainless steel spiral nozzle 8；
3., close crude benzol slag-draining device.
The those skilled in the art can readily realize the present invention with the above specific embodiments,.It but should
Work as understanding, the present invention is not limited to above-mentioned 2 kinds of specific embodiments.On the basis of the disclosed embodiments, the technology neck
The technical staff in domain can arbitrarily combine different technical characteristics, so as to fulfill different technical solutions.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (10)
1. a kind of environment-friendly type clean manufacturing crude benzol slag-draining device, including regenerator, slag ladle, slag-discharging valve and residue collecting pit, then
It is connected between the slag-drip opening and slag ladle of raw tower by scum pipe, the bottom end of slag ladle is by connecting scum pipe and residue collecting pit phase
Even, it is additionally provided with slag-discharging valve on scum pipe；Oil inlet valve is provided on regenerator, steam jacket is provided in regenerator
Pipe；It is characterized in that it is provided with high pressure sprinkler in the tank body of slag ladle；Slag ladle bottom end side is also associated with retracting device；Slag ladle
Top pass through exhaust pipe connect tail gas cleaning system.
A kind of 2. environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 1, it is characterised in that high pressure sprinkling dress
It puts and is symmetrically mounted on the both sides of slag ladle inner wall including spray line, high-pressure spraying pump and closed underground pond, multipair spray line；Sprinkling
Pipe, high-pressure spraying pump connect to form high pressure sprinkling loop by pipe gravity flow pipeline with closed underground pond.
3. a kind of environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 2, it is characterised in that on spray line
Multiple corrosion-resistant stainless steel spiral nozzles are installed.
A kind of 4. environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 1, it is characterised in that retracting device packet
Tar extraction element and crude benzol Slag recovering device are included, it is clear that tar extraction element includes closed underground pond, submerged pump and mechanization
Clear slot, closed underground pond, submerged pump and mechanical settling tank connect to form tar extraction envelope by recycling spray water conveyance conduit
Loop circuit；Crude benzol Slag recovering device includes residue collecting pit, Slag recovering pump, residue conveying steam jacket pipe and tar ammonia
Water underground tank conveys steam jacket Guan Lian between residue collecting pit, Slag recovering pump and tar ammonia underground tank by residue
It connects to form crude benzol Slag recovering loop.
A kind of 5. environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 1, it is characterised in that the top of slag ladle
For tapered or pyramid type structure the slag ladle in side, blowdown stack is provided at the top of slag ladle, blowdown stack is connected with exhaust pipe；Row
It puts and is additionally provided with exhaust pipe valve with the junction of exhaust pipe on chimney.
6. a kind of environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 1, it is characterised in that tail gas, which is cleaned, is
System includes tail gas air-introduced machine, cleans circulated sprinkling pump and tail gas washing column, and the drive of tail gas air-introduced machine is discharged from blowdown stack
Lower part of the tail gas through exhaust pipe sucking tail gas washing column；At least two clean circulated sprinkling pumps are washed respectively by pipeline and tail gas
Net tower connects to form closed circulation.
A kind of 7. environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 6, it is characterised in that tail gas washing column
Inside is additionally provided with demister and light porcelain packing, and demister is located at the exhaust port of tail gas washing column；Light porcelain packing is located at
The lower section of demister, and it is arranged on the middle part of tail gas washing column.
8. a kind of environment-friendly type clean manufacturing crude benzol slag-draining device according to claim 6, it is characterised in that each clean is followed
The pipeline input terminal that ring spray pump is connected is arranged on the lower part of tail gas washing column, and output terminal is arranged on the upper of tail gas washing column
Portion.
9. a kind of environment-friendly type crude benzol deslagging process, it is characterised in that the crude benzol slag-draining device is in claim 1-8
Any environment-friendly type clean manufacturing crude benzol slag-draining device, the process include the following steps：
（1）, start-up；
（2）, the process operation stage；
（3）, shutdown phase.
A kind of 10. environment-friendly type crude benzol deslagging process according to claim 9, it is characterised in that the step（1）In,
Start-up includes the following steps：
, check slag ladle sealing it is intact；
, check that high-pressure spraying pump is intact, check spray line and corrosion-resistant stainless steel spiral nozzle without blocking；
, check exhaust gas purification system operation it is intact；
, before deslagging, it is intact to check that each equipment in crude benzol slag-draining device checks, and close the slag ladle door on slag ladle；
, to residue conveying steam jacket pipe preheat, and carry out steam blowing；
The step（2）In, the process operation stage includes the following steps：
, be first shut off the oil inlet valve of regenerator, superheated steam is passed through into regenerator, gradually heats temperature in regenerator
To 250 DEG C, reach deslagging conditions；
, open tail gas cleaning system exhaust pipe valve, tail gas air-introduced machine work, ensure slag ladle in be negative pressure 5kPa；
, open high-pressure spraying pump, extract 10 meters locate closed underground pond in crude benzol separation water as flushing liquor, flushing liquor water temperature
It it is 25 DEG C, pressure control is in 0.3MPa ranges, and flow control is in 25m3/h, and the flushing liquor of extraction is through spray line from corrosion-resistant stainless
It is sprayed in steel spiral nozzle, continuous high pressure sprinkling is carried out to slag ladle；
, while continuous high pressure is sprayed, open regenerator slag-discharging valve, start the deslagging into slag ladle, generated in tapping process
The tail gas containing peculiar smell tail gas washing column is introduced by tail gas air-introduced machine, at the same time, start two clean circulated sprinklings pumps, wash
Net circulation spray pump extracts the tail gas that detergent remover introduces in tail gas washing column tail gas air-introduced machine and carries out sprinkling washing, and tail gas passes through
The filtering qualified discharge of light porcelain packing and demister；Residue after cooling is discharged into residue collecting pit；
, the cycle collected for closed underground pond spray mixed liquor, open submerged pump, it is clear to be periodically sent to mechanization tar
Clear slot extraction tar；
, by residue collecting pit crude benzol residue collect, with Slag recovering pump through residue conveying steam jacket pipe send to tar
Ammonium hydroxide underground tank, and carry into tar pan tank after the static dehydration of high temperature melt and selling outside；
The step（3）In, shutdown phase includes the following steps：
, deslagging finish, close crude benzol slag-draining device in high pressure sprinkler and retracting device, regenerator is incorporated to de- benzene series
System, returns to normal production；
, close tail gas cleaning system after five minutes, treat that temperature in slag ladle is down to 30 DEG C hereinafter, opening the slag ladle door on slag ladle, clearly
It manages the recrement in slag ladle and checks the stopping state of spray line and corrosion-resistant stainless steel spiral nozzle；
, close crude benzol slag-draining device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163962.7A CN108148637A (en) | 2018-02-27 | 2018-02-27 | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163962.7A CN108148637A (en) | 2018-02-27 | 2018-02-27 | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process |
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| Publication Number | Publication Date |
|---|---|
| CN108148637A true CN108148637A (en) | 2018-06-12 |
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ID=62456358
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|---|---|---|---|
| CN201810163962.7A Pending CN108148637A (en) | 2018-02-27 | 2018-02-27 | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device and process |
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| CN (1) | CN108148637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173673A (en) * | 2018-10-25 | 2019-01-11 | 山东环达环保科技有限公司 | Tar slag-drip opening slag-draining device and exhaust gas treating method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847363A (en) * | 2006-01-24 | 2006-10-18 | 通化钢铁股份有限公司焦化厂 | Slag discharging and smoke eliminating method for crude benzene regenerator |
| CN207891314U (en) * | 2018-02-27 | 2018-09-21 | 山东恒信高科能源有限公司 | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device |
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2018
- 2018-02-27 CN CN201810163962.7A patent/CN108148637A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847363A (en) * | 2006-01-24 | 2006-10-18 | 通化钢铁股份有限公司焦化厂 | Slag discharging and smoke eliminating method for crude benzene regenerator |
| CN207891314U (en) * | 2018-02-27 | 2018-09-21 | 山东恒信高科能源有限公司 | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173673A (en) * | 2018-10-25 | 2019-01-11 | 山东环达环保科技有限公司 | Tar slag-drip opening slag-draining device and exhaust gas treating method and device |
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