CN105132042B - A kind of crude benzene regenerator slag-draining device and Slagoff method - Google Patents

A kind of crude benzene regenerator slag-draining device and Slagoff method Download PDF

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Publication number
CN105132042B
CN105132042B CN201510548359.7A CN201510548359A CN105132042B CN 105132042 B CN105132042 B CN 105132042B CN 201510548359 A CN201510548359 A CN 201510548359A CN 105132042 B CN105132042 B CN 105132042B
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residue
tar
tank
spray column
regenerator
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CN105132042A (en
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吴盛海
宁俊凡
高朋
邵存璐
孔鲁慧
李朝维
刘宝亮
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Shandong HENGWEI Chemical Technology Co., Ltd.
SHANDONG TIEXIONG XINSHA ENERGY CO., LTD.
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Shandong Tiexiong Xinsha Energy Co Ltd
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Abstract

The invention discloses a kind of crude benzene regenerator slag-draining device and Slagoff method, by the way that tar is injected into residue tank, mixed with the washing oil from regenerator, the waste gas of generation enters spray column and recirculated water condensation by contact, and condensed water enters circulating water chennel, does not coagulate waste gas recovery;Opening sends valve outside, and tar is delivered in tar groove, and the present invention can optimize washing oil quality, reduces steam consumption, it is to avoid Residue extraction pipeline is blocked, and script is discharged into aerial waste gas is changed to recycle in closed container, reduces the harm caused to environment.

Description

A kind of crude benzene regenerator slag-draining device and Slagoff method
Technical field
Regenerating wash oil field in coking production of the present invention, a kind of crude benzene regenerator slag-draining device and Slagoff method.
Background technology
Coke-oven plant Hua Chan workshops crude benzol workshop section deslagging is to control washing oil quality as principle, for the purpose of raising crude benzol recovery rate Technological operation.A part of circulating washing oil is generally sent into regenerator by the operation, is carried out blowing steaming with superheated steam, is blown the oil steamed Gas enters debenzolizing tower as thermal source, and the remaining polymer substance of circulating washing oil is discharged as residue;Regenerator deslagging generally has:1. Steam blowing method;2. washing oil dissolution method;3. artificial dredging method.Country chemical plant is general at present is changing the regeneration of production workshop crude benzol workshop section Device deslagging uses traditional dry cinder discharging, although the method can save the consumption of washing oil, is easily made in tapping process Into dry slag aging, regenerator Residue extraction pipeline, washing oil deterioration are blocked;Need to consume a large amount of superheated steam (higher pressures during deslagging Power), gas is discharged into air that Dark smoke billows, and peculiar smell is unpleasant, and environment is caused harm;The residue of discharge is generally as waste residue simultaneously Again it is incorporated in coal or sale at low prices, causes economic loss.
The content of the invention
The invention provides a kind of crude benzene regenerator slag-draining device and Slagoff method, washing oil quality can be optimized, reduction is steamed Vapour consumption, it is to avoid Residue extraction pipeline is blocked, discharges aerial waste gas by script and is changed to recycle in closed container, reduce The harm caused to environment.
The complete technical scheme of the present invention includes:
Crude benzene regenerator slag-draining device, including tar tank, residue tank, residue pump, heater, regenerator, spray column, air inducing Machine, circulating water chennel, spray pump, tar pipeline, steam blowing equipment, exhaust stack;
Described tar tank receives the tar for coming autocondensation workshop section, and bottom is connected by tar pipeline with residue tank, Ash pit is provided with residue tank, residue tank is connected at the top of tar tank by another road tar pipeline, on another road tar pipeline Provided with residue pump and valve is sent outside, the residue after being diluted by tar is sent back to tar tank, residue tank passes through Residue extraction pipeline connection regeneration Device bottom valve, described Residue extraction pipeline is provided with steam blowing equipment, and residue pot bottom is provided with heater, and regenerator overhead connects Debenzolizing tower is connect, residue tank is connected at the top of spray column bottom, described spray column at the top of connection air-introduced machine, spray column by exhaust stack Waste gas recovering device is connected, circulating water chennel is connected at the top of spray column by spray pump, and recirculated water is sent at the top of spray column, spray Tower bottom connects circulating water chennel by water circulating pump.
A kind of method that deslagging is carried out using above-mentioned slag-draining device, is comprised the following steps:
(1) spray column recirculated water is opened, and starts air-introduced machine and starts spray, spray flow is 10m3/ h, treats that state is steady After fixed, the tar of workshop section will be condensed by tar tank injection residue tank, and to ash pit, heater, and in deslagging Process is heated always, it is ensured that temperature is not less than 60-80 DEG C, to prevent residue from condensing, preheating pipe, and opens steam blowing equipment Clear and coherent tar pipeline, superheated steam pressure is 3.0MPa;
(2) regenerating wash oil in regenerator, addition is oil-poor, is purged by superheated steam, and light component is discharged from top, heavy constituent I.e. tar residue is discharged from scum pipe, and the tar in residue tank is mixed with the tar residue from regenerator, produces waste gas, institute The waste gas stated enters spray column bottom, and the recirculated water condensation by contact from circulating water chennel by exhaust stack, and condensed water is by following Ring water pump enters circulating water chennel;Do not coagulate waste gas and then enter waste gas recovering device recovery;
(3) after deslagging with superheated steam clear and coherent Residue extraction pipeline again, purging is finished, and first closes slag-discharging valve, then close steam valve Door;Then drive residue pump and return valve, it is ensured that after whole system circulation 30min, close air-introduced machine and spray column recirculated water, close Return valve, opening sends valve outside, and tar is delivered in tar groove.
In the step (2), the tar in residue tank and the tar residue mixed proportion from regenerator are 7:1.
The present invention is relative to the advantage of prior art:
Increase residue tank, spray column and circulating pump, lay tar pipeline, change the multinomial measures such as slag-discharging valve so that be System in the case of not with contacting external air, is just pumped to tar groove by residue, washed so as to optimize when discharging wet slag Oil quality, reduces steam consumption, it is to avoid deslagging pipeline is blocked, and script is discharged into aerial waste gas is changed to waste gas in closed appearance Recycled in device, reduce the harm caused to environment.
Brief description of the drawings
Fig. 1 is crude benzene regenerator slag-draining device structural representation.
1 is tar tank in figure, and 2 be tar pipeline, and 3 be residue tank, and 4 be residue pump, and 5 is send valve outside, and 6 be Residue extraction pipeline, 7 It is heater for regenerator, 8,9 be exhaust stack, and 10 be spray column, and 11 be air-introduced machine, and 12 be circulating water chennel, and 13 be spray pump.
Embodiment
With reference to embodiment, the present invention will be further described.
As shown in Figure 1, a kind of crude benzene regenerator slag-draining device, including tar tank 1, tar pipeline 2, residue tank 3, residue Pump 4, sends valve 5, Residue extraction pipeline 6, regenerator 7, heater 8, exhaust stack 9, spray column 10, air-introduced machine 11, circulating water chennel 12, spray outside Drench pump 13, steam blowing equipment;
Described tar tank 1 receives the tar for coming autocondensation workshop section, and bottom is connected by tar pipeline 2 with residue tank 3 Connect, ash pit is provided with residue tank, residue tank is connected at the top of tar tank by another road tar pipeline, another road tar pipeline It is provided with residue pump 4 and sends valve 5 outside, sends the residue after being diluted by tar back to tar tank 1, residue tank is connected by Residue extraction pipeline 6 The bottom valve of regenerator 7 is connect, described Residue extraction pipeline is provided with steam blowing equipment, and residue pot bottom is provided with heater 8, regeneration The top of device 7 connection debenzolizing tower, residue tank 3 connects the bottom of spray column 10 by exhaust stack 9, and the described top of spray column 10 connection is drawn Connection waste gas recovering device at the top of blower fan 11, spray column, circulating water chennel 12 connects the top of spray column 10 by spray pump 13, will follow The top of ring water feeding spray column 10, the bottom of spray column 10 connects circulating water chennel 12 by water circulating pump.
Concrete technology flow process is:
(1) spray column recirculated water is opened, spray column size is:High 2500mm, and start air-introduced machine and start Spray, spray flow is 10m3/ h, after in stable condition, the tar for condensing workshop section is injected in residue tank by tar tank, and To ash pit, heater, and heated always in tapping process, it is ensured that temperature is not less than 60-80 DEG C, to prevent residue from coagulating Knot, preheating pipe, and the clear and coherent tar pipeline of steam blowing equipment is opened, superheated steam pressure is 3.0MPa;
(2) regenerating wash oil in regenerator, addition is oil-poor, is purged by superheated steam, and light component is discharged from top, heavy constituent I.e. tar residue is discharged from scum pipe, the tar in residue tank is mixed with the tar residue from regenerator, in residue tank Tar is 7 with the tar residue mixed proportion from regenerator:1, waste gas is produced, described waste gas enters spray by exhaust stack Tower bottom, and the recirculated water condensation by contact from circulating water chennel, condensed water enter circulating water chennel by water circulating pump;Do not coagulate waste gas Then enter waste gas recovering device to reclaim;
(3) after deslagging with superheated steam clear and coherent Residue extraction pipeline again, purging is finished, and first closes slag-discharging valve, then close steam valve Door;Then drive residue pump and return valve, it is ensured that after whole system circulation 30min, close air-introduced machine and spray column recirculated water, close Return valve, opening sends valve outside, and tar is delivered in tar groove.

Claims (3)

1. a kind of method that deslagging is carried out using crude benzene regenerator slag-draining device, it is characterised in that described crude benzene regenerator row Slag device includes tar tank, and residue tank, residue pump, heater, regenerator, spray column, air-introduced machine, circulating water chennel, spray pump is burnt Oil-piping, steam blowing equipment, exhaust stack;
Described tar tank receives the tar for coming autocondensation workshop section, and bottom is connected by tar pipeline with residue tank, residue Ash pit is provided with tank, residue tank is connected at the top of tar tank by another road tar pipeline, and another road tar pipeline is provided with Residue pump and send valve outside, send the residue after being diluted by tar back to tar tank, residue tank passes through Residue extraction pipeline and connects regenerator bottom Portion's valve, described Residue extraction pipeline is provided with steam blowing equipment, and residue pot bottom is provided with heater, and regenerator overhead connection is de- Benzene column, residue tank is connected by exhaust stack and connected at the top of spray column bottom, described spray column at the top of connection air-introduced machine, spray column Waste gas recovering device, circulating water chennel is connected at the top of spray column by spray pump, recirculated water is sent at the top of spray column, spray column bottom Portion connects circulating water chennel by water circulating pump;
Described method specifically includes following steps:
(1) spray column recirculated water is opened, and starts air-introduced machine and starts spray, spray flow is 10m3/ h, after in stable condition, The tar of workshop section will be condensed by tar tank injection residue tank, and to ash pit, heater, and in tapping process one Straight heating, it is ensured that temperature is not less than 60 DEG C, to prevent residue from condensing, preheating pipe, and opens the clear and coherent tar of steam blowing equipment Pipeline, superheated steam pressure is 3.0MPa;
(2) regenerating wash oil in regenerator, addition is oil-poor, is purged by superheated steam, and light component is discharged from top, and heavy constituent is Jiao Oil residue is discharged from scum pipe, and the tar in residue tank is mixed with the tar residue from regenerator, produces waste gas, described Waste gas enters spray column bottom, and the recirculated water condensation by contact from circulating water chennel by exhaust stack, and condensed water passes through recirculated water Pump enters circulating water chennel;Do not coagulate waste gas and then enter waste gas recovering device recovery;
(3) after deslagging with superheated steam clear and coherent Residue extraction pipeline again, purging is finished, and first closes slag-discharging valve, then close steam valve;With After drive residue pump and return valve, it is ensured that after whole system circulation 30min, close air-introduced machine and spray column recirculated water, closing volume Valve, opening sends valve outside, and tar is delivered in tar groove.
2. a kind of method that deslagging is carried out using crude benzene regenerator slag-draining device, it is characterised in that described crude benzene regenerator row Slag device includes tar tank, and residue tank, residue pump, heater, regenerator, spray column, air-introduced machine, circulating water chennel, spray pump is burnt Oil-piping, steam blowing equipment, exhaust stack;
Described tar tank receives the tar for coming autocondensation workshop section, and bottom is connected by tar pipeline with residue tank, residue Ash pit is provided with tank, residue tank is connected at the top of tar tank by another road tar pipeline, and another road tar pipeline is provided with Residue pump and send valve outside, send the residue after being diluted by tar back to tar tank, residue tank passes through Residue extraction pipeline and connects regenerator bottom Portion's valve, described Residue extraction pipeline is provided with steam blowing equipment, and residue pot bottom is provided with heater, and regenerator overhead connection is de- Benzene column, residue tank is connected by exhaust stack and connected at the top of spray column bottom, described spray column at the top of connection air-introduced machine, spray column Waste gas recovering device, circulating water chennel is connected at the top of spray column by spray pump, recirculated water is sent at the top of spray column, spray column bottom Portion connects circulating water chennel by water circulating pump;
Described method specifically includes following steps:
(1) spray column recirculated water is opened, and starts air-introduced machine and starts spray, spray flow is 10m3/ h, after in stable condition, The tar of workshop section will be condensed by tar tank injection residue tank, and to ash pit, heater, and in tapping process one Straight heating, it is ensured that temperature is not less than 80 DEG C, to prevent residue from condensing, preheating pipe, and opens the clear and coherent tar of steam blowing equipment Pipeline, superheated steam pressure is 3.0MPa;
(2) regenerating wash oil in regenerator, addition is oil-poor, is purged by superheated steam, and light component is discharged from top, and heavy constituent is Jiao Oil residue is discharged from scum pipe, and the tar in residue tank is mixed with the tar residue from regenerator, produces waste gas, described Waste gas enters spray column bottom, and the recirculated water condensation by contact from circulating water chennel by exhaust stack, and condensed water passes through recirculated water Pump enters circulating water chennel;Do not coagulate waste gas and then enter waste gas recovering device recovery;
(3) after deslagging with superheated steam clear and coherent Residue extraction pipeline again, purging is finished, and first closes slag-discharging valve, then close steam valve;With After drive residue pump and return valve, it is ensured that after whole system circulation 30min, close air-introduced machine and spray column recirculated water, closing volume Valve, opening sends valve outside, and tar is delivered in tar groove.
3. method as claimed in claim 2, it is characterised in that in the step (2), the tar in residue tank is with coming from regeneration The tar residue mixed proportion of device is 7:1.
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CN105920972B (en) * 2016-06-02 2018-08-03 江苏华兴橡胶科技有限公司 A kind of waste gas recovery purification system for tyre reclaim production
CN110368710A (en) * 2018-04-14 2019-10-25 广东韶钢松山股份有限公司 A kind of residue oil groove exhaust gas treating method
CN109604307A (en) * 2018-12-07 2019-04-12 山西焦化股份有限公司 A kind of equipment that two recovery systems crude benzol regeneration slag recycles

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Inventor after: Wu Shenghai

Inventor after: Wei Yunhua

Inventor after: Ning Junfan

Inventor after: Gao Peng

Inventor after: Shao Cunlu

Inventor after: Kong Luhui

Inventor after: Li Chaowei

Inventor after: Liu Baoliang

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Inventor before: Ning Junfan

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Effective date of registration: 20170915

Address after: 274900 resident coal chemical industry park of Tian Zhen Town, Juye County, Shandong City, Heze province (327 National Road North)

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Patentee after: Shandong HENGWEI Chemical Technology Co., Ltd.

Address before: 274900 Shandong city of Heze province Juye County Tian Qiao Zhen Shandong Tiexiong Xinsha Energy Co. Ltd.

Patentee before: SHANDONG TIEXIONG XINSHA ENERGY CO., LTD.