CN103007696B - Device and method for treating carbon black tail gas and application of tail gas - Google Patents
Device and method for treating carbon black tail gas and application of tail gas Download PDFInfo
- Publication number
- CN103007696B CN103007696B CN201310001685.7A CN201310001685A CN103007696B CN 103007696 B CN103007696 B CN 103007696B CN 201310001685 A CN201310001685 A CN 201310001685A CN 103007696 B CN103007696 B CN 103007696B
- Authority
- CN
- China
- Prior art keywords
- tail gas
- carbon black
- gas
- black tail
- dehydrating 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a device and a method for treating carbon black tail gas and an application of the tail gas. The device comprises a carbon black tail gas pressurizing fan, a dehydration tower and a dehydrated tail gas fan, which are connected in sequence, wherein the upper part of the dehydration tower is further connected with a spraying water pump; the lower part of the dehydration tower is further connected with a circulating cooling water system; the circulating cooling water system is further connected with the spraying water pump; and the dehydration tower sequentially comprises a de-foaming device, a liquid distributor, a gas-liquid distributor and a gas initial distributor from top to bottom. According to the device disclosed by the invention, a lot of water in the carbon black tail gas can be effectively removed, the calorific value of the carbon black tail gas is improved, the dew point of the tail gas is reduced, the corrosion to equipment is relieved, harmful substances including carbon black dust are removed, the quality of the carbon black tail gas is improved, national energy conservation and emission reduction are met, and an industrial policy of the circular economy is developed; the device has obvious economic benefits and social benefits; and the treated carbon black tail gas replaces melted-down coal gas of a coke furnace and the replaced melted-down coal gas with the high calorific value is supplied for cities, so that effective and recycled utilization of resources is achieved.
Description
Technical field
The present invention relates to a kind of carbon black tail gas treatment technology, particularly a kind of dewatered clean process of carbon black tail gas.
Background technology
Carbon black tail gas is the low heat value pernicious gas containing combustible component discharged in carbon black process, CO, H in tail gas
2, CmHn, H
2the gases such as S are directly discharged in air will cause severe contamination to atmospheric environment.
At present, the domestic process to carbon black tail gas mainly contains following two kinds of approach.A kind of approach is direct high altitude discharge after incinerator burns, although the basic meet the requirement of environmental protection of this way, effectively do not utilize thermal source, tail gas low heat value is about 510Kcal/Nm
3~ 630Kcal/Nm
3(carbon black tail gas low heat value is different with the kind of carbon black difference of producing), economy is bad.Another kind of by boiler combustion, produce steam for producing, living or drive turbine LP rotors generating, better economy, but high humidity carbon black tail gas water content is about 38% ~ 41%, tail gas low heat value is about 510Kcal/Nm
3~ 630Kcal/Nm
3(carbon black tail gas composition is different with the kind of carbon black difference of producing), ignition temperature is low, and exhaust combustion is incomplete, and efficiency of utilization is low, e-quipment and pipe seriously corroded.
Summary of the invention
One of goal of the invention of the present invention is: for above-mentioned Problems existing, provides a kind of brand-new carbon black tail gas treating apparatus, dewaters to carbon black tail gas, purified treatment, improves carbon black tail gas quality and calorific value.
The technical solution used in the present invention is such:
A kind of carbon black tail gas treating apparatus, comprise the carbon black tail gas booster fan, dehydrating tower and the dehydration tail-gas blower fan that connect successively, described carbon black tail gas booster fan is connected with dehydrating tower bottom, dehydrating tower top is also connected with feeding spraying pump, dehydrating tower bottom is also connected with recirculating cooling water system, institute's circulating water cooling system is also connected with feeding spraying pump, and described dehydrating tower comprises demister, liquid distribution trough, gas-liquid distributor and gas initial distribution device from top to bottom successively;
Demister preferably adopts heavy duty detergent wire mesh demister, for separating of the drop that tail gas in dehydrating tower is carried secretly, ensures mass-transfer efficiency, improves tail gas quality; Liquid distribution trough preferably adopts gravity-type circular groove type distributor, and liquid distribution trough can ensure to be evenly distributed in gas-liquid distributor from the feed liquor of feeding spraying pump, and avoids charging and directly contact with uprising gas, thus reduces the entrainment of gas; Gas-liquid distributor preferably adopts Box-type Gas-liquid Distributor, and improve material handling capacity and reduce pressure drop, enhance pouring and fall mass-and heat-transfer function, rectangle riser makes uniform gas-liquid distribution, reduces spray hole count, improves its anti-clogging; Gas initial distribution device ensure that carbon black tail gas enters tower and stablizes, and improves carbon black tail gas and is evenly distributed, reduce liquid entrainment and Pressure Drop.
As preferably, lightweight structured packing is set in described dehydrating tower, such as light ceramics structured packing, lightweight structured packing has light specific gravity, good, anticorrosive, anti-aging, the resistance to temperature of compression strength is high, filler specific surface large, the performances such as mass transfer effect is superior, throughput is large, resistance is little, pressure drop is low.
As preferably, described dehydrating tower is also provided with steam blowing equipment.Steam blowing equipment removes carbon powder dust and other impurity of filling surface in dehydrating tower, ensures filler heat and mass effect.
As preferably, between dehydrating tower and carbon black tail gas booster fan, be provided with electric water gate sealing valve.During exhaust gas processing device fault, electric water gate sealing valve cuts off tail gas automatically, ensures whole exhaust system safety.
As preferably, cyclone separator is set between dehydrating tower and dehydration tail-gas blower fan, water droplet and dust in carbon black tail gas can be removed further, further increase carbon black tail gas quality.
As preferably: described dehydration tail-gas blower fan adopts roots blower.
Two of goal of the invention of the present invention is, improve the method that said apparatus carries out carbon black tail gas process, the technical scheme adopted is: the carbon black tail gas inlet pressure controlling dehydrating tower is 2.5 ~ 3.5kPa, the carbon black tail gas outlet pressure of dehydrating tower is 0.5 ~ 1.5kPa, the carbon black tail gas outlet temperature of dehydrating tower 35 ~ 45 DEG C, feeding spraying pump outlet temperature 29 ~ 33 DEG C, feeding spraying pump outlet pressure 0.3 ~ 0.4MPa, dehydrating tower leaving water temperature 38 ~ 42 DEG C, dehydrating tower liquid level 1400 ~ 1600mm, exhaust flow 30000 ~ 50000 Nm
3/ h.Carbon black tail gas is made to enter another hypersaturated state (carbon black tail gas temperature 35 ~ 45 DEG C) from a hypersaturated state (carbon black tail gas temperature 200 ~ 220 DEG C) by the control of above major parameter, steam in tail gas starts from carbon black tail gas, to separate liquefy water with the form of dew point, and carbon black tail gas obtains dewatered clean.
Three of goal of the invention of the present invention is, improve the application of said apparatus and method, the technical scheme of employing is: treated tail gas passes into coke oven device as coke oven fuel.
As preferably, during treated carbon black tail gas, also after dehydration tail-gas blower fan, set gradually gas holder and row pressure machine, the outlet of row pressure machine and coke oven device.The setting of gas holder mainly ensures the stable supply of tail gas, and reduce air feed fluctuation, row pressure machine ensures that tail gas discharge pressure is stablized, and ensures that coke oven combustion is stablized, improves combustion thermal efficiency.
As preferably, between described dehydration tail-gas blower fan and gas holder, be also provided with water seal, the condensed water in exhaust pipe can be discharged like this, ensure tail gas induction system safety simultaneously.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: the carbon black tail gas treatment technology of the present invention's exploitation and equipment, effectively can remove the large quantity of moisture in carbon black tail gas, improve the calorific value of carbon black tail gas, and reduce tail gas dew point, alleviate the corrosion to equipment, application is more extensive.The technology of the present invention is also stripped of the harmful substances such as carbon powder dust, improves the quality of carbon black tail gas, meet country energy-saving and emission-reduction, the industrial policy of developing a circular economy, economic benefit and social benefit remarkable.
Carbon black tail gas after dehydration, purified treatment is replaced the firing tunnel in coking furnace of coke oven by the present invention, and burning dehydration carbon black tail gas heats coke oven.The high heating value firing tunnel in coking furnace of replacing out supplies city outward, reaches the effective of resource and recycles.
Device of the present invention and technique have the advantages such as disposal ability is large, energy-saving and cost-reducing, the device continuous and steady operation cycle is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Mark in figure: 1 is dehydrating tower; 2 is gas initial distribution device; 3 is gas-liquid distributor; 4 is liquid distribution trough; 5 is demister; 6 is cyclone separator; 7 is feeding spraying pump; 8 is carbon black tail gas booster fan; 9 is roots blower; 10 is steam blowing equipment; 11 is circulating water cooling system; 12 is water seal; 13 is gas holder; 14 is row pressure machine; 15 is coke oven device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1:
As shown in Figure 1, a kind of carbon black tail gas dewater unit, carbon black tail gas booster fan 8, dehydrating tower 1, cyclone separator 6, roots blower 9, water seal 12, gas holder 13, row pressure machine 14 and coke oven device 15 is set gradually by exhaust gas flow direction, set gradually feeding spraying pump 7, liquid distribution trough 4, gas-liquid distributor 3, circulating water cooling system 11 by water flow direction, in dehydrating tower 1, comprise demister 5, liquid distribution trough 4, gas-liquid distributor 3 and gas initial distribution device 2 from top to bottom successively, carbon black tail gas booster fan 8 is connected with the gas initial distribution device 2 of dehydrating tower 1 bottom, feeding spraying pump 7 is connected with liquid distribution trough 4, circulating water cooling system 11 comprises cooling tower and cooling bay, the entrance point of cooling tower is connected with dehydrating tower bottom, the port of export of cooling tower is connected with cooling bay, cooling bay is connected with feeding spraying pump 7 again, recirculated cooling water is delivered to carbon black tail gas dehydrating tower 1 top by spray-pond cooler and is sprayed into after atomization after feeding spraying pump 7 pressurizes, shower water and carbon black tail gas mass transfer and after conducting heat, temperature raises, enter cooling tower through dehydrating tower 1 bottom and be pooled to the use of cooling bay cooling Posterior circle.
Embodiment 2
A kind of carbon black tail gas processing method and technique for applying, comprise following key step:
(1) carbon black tail gas booster fan 8 and feeding spraying pump 7 is opened, high temperature carbon black tail gas carries out heat and mass by gas initial distribution device 2 and the shower water carrying out distributing through liquid distribution trough 4, after dehydration, carbon black tail gas enters cyclone separator 6 through demister 5, the carbon black tail gas inlet pressure of dehydrating tower is 2.5kPa, the carbon black tail gas outlet pressure of dehydrating tower is 0.5kPa, feeding spraying pump outlet temperature 29 DEG C, feeding spraying pump outlet pressure 0.3MPa, dehydrating tower leaving water temperature 38 DEG C, dehydrating tower liquid level 1400mm;
(2) start cyclone separator 6, get rid of carbon powder dust and water droplet;
(3) adjust shower water flow, pressure and exhaust flow, pressure, make dehydrating tower 1 export exhaust temperature and control at about 45 DEG C;
(4) start roots blower 9, after dehydration, carbon black tail gas is delivered to gas holder 13, controls tail gas discharge pressure by roots blower 9, ensures the stable conveying of tail gas;
(5) start gas down machine 14 and dehydration carbon black tail gas is delivered to coke oven device 15 as coke oven fuel, displace high heating value coke oven firing tunnel in coking furnace;
(low heat value is about 1200kcal/Nm for dehydration carbon black tail gas and producer gas
3) blending burning; Utilize carbon black tail gas to carry out peak regulation to firing tunnel in coking furnace, be conducive to coke quality steady;
The carbon black tail gas of the present embodiment is soft carbon tail gas, and treating capacity is 30000Nm
3/ h, before dehydration, carbon black tail gas low heat value is about 540 ~ 630kcal/Nm
3(carbon black tail gas low heat value is different with the soft carbon kind difference of producing); After dehydration, carbon black tail gas low heat value is about 910 ~ 970kcal/Nm
3.
Embodiment 3
A kind of carbon black dewatering process, comprises following key step:
(1) carbon black tail gas booster fan 8 and feeding spraying pump 7 is opened, high temperature carbon black tail gas carries out heat and mass by gas initial distribution device 2 and the shower water carrying out distributing through feed liquor distribution apparatus 4, after dehydration, carbon black tail gas enters cyclone separator 6 through demister 5, the carbon black tail gas inlet pressure of dehydrating tower is 3.5kPa, the carbon black tail gas outlet pressure of dehydrating tower is 1.5kPa, feeding spraying pump outlet temperature 33 DEG C, feeding spraying pump outlet pressure 0.4MPa, dehydrating tower leaving water temperature 42 DEG C, dehydrating tower liquid level 1600mm;
(2) start cyclone separator 6, get rid of carbon powder dust and water droplet;
(3) adjust shower water flow, pressure and exhaust flow, pressure, make dehydrating tower 1 export exhaust temperature and control at about 35 DEG C;
(4) start roots blower 9, after dehydration, carbon black tail gas is delivered to gas holder 13, controls tail gas discharge pressure by roots blower 9, ensures the stable conveying of tail gas;
(5) start gas down machine 14 and dehydration carbon black tail gas is delivered to coke oven device 15 as coke oven fuel, displace high heating value coke oven firing tunnel in coking furnace;
(low heat value is about 4000kcal/Nm for dehydration carbon black tail gas and a small amount of firing tunnel in coking furnace
3) blending burning, utilize carbon black tail gas to carry out peak regulation to firing tunnel in coking furnace, be conducive to coke quality steady;
The carbon black tail gas of the present embodiment is hard (carbon) black and soft carbon tail gas gaseous mixture, and treating capacity is 50000Nm
3/ h, before dehydration, carbon black tail gas low heat value is about 520 ~ 610kcal/Nm
3(carbon black tail gas low heat value is different with the kind of carbon black difference of producing), after dehydration, carbon black tail gas low heat value is about 910 ~ 960kcal/Nm
3.
Embodiment 4
(1) carbon black tail gas booster fan 8 and feeding spraying pump 7 is opened, high temperature carbon black tail gas carries out heat and mass by gas initial distribution device 2 and the shower water carrying out distributing through feed liquor distribution apparatus 4, after dehydration, carbon black tail gas enters cyclone separator 6 through demister 5, the carbon black tail gas inlet pressure of dehydrating tower is 3.0kPa, the carbon black tail gas outlet pressure of dehydrating tower is 1.0kPa, feeding spraying pump outlet temperature 32 DEG C, feeding spraying pump outlet pressure 0.35MPa, dehydrating tower leaving water temperature 40 DEG C, dehydrating tower liquid level 1500mm;
(2) start cyclone separator 6, get rid of carbon powder dust and water droplet;
(3) adjust shower water flow, pressure and exhaust flow, pressure, make dehydrating tower 1 export exhaust temperature and control at about 40 DEG C;
(4) start roots blower 9, after dehydration, carbon black tail gas is delivered to gas holder 13, controls tail gas discharge pressure by roots blower 9, ensures the stable conveying of tail gas;
(5) start gas down machine 14 and dehydration carbon black tail gas is delivered to coke oven device 15 as coke oven fuel, displace high heating value coke oven firing tunnel in coking furnace;
(low heat value is about 4000kcal/Nm for dehydration carbon black tail gas and a small amount of firing tunnel in coking furnace
3) blending burning, utilize carbon black tail gas to carry out peak regulation to firing tunnel in coking furnace, be conducive to coke quality steady;
The carbon black tail gas of the present embodiment is hard carbon tail gas, and treating capacity is 40000Nm
3/ h, before dehydration, carbon black tail gas low heat value is about 510 ~ 600kcal/Nm
3(carbon black tail gas low heat value is different with the hard (carbon) black kind difference of producing), after dehydration, carbon black tail gas low heat value is about 890 ~ 950kcal/Nm
3.
Claims (8)
1. a carbon black tail gas treating apparatus, comprise the carbon black tail gas booster fan, dehydrating tower and the dehydration tail-gas blower fan that connect successively, described carbon black tail gas booster fan is connected with dehydrating tower bottom, dehydrating tower top is also connected with feeding spraying pump, dehydrating tower bottom is also connected with recirculating cooling water system, described circulating water cooling system is also connected with feeding spraying pump, it is characterized in that: described dehydrating tower comprises demister, liquid distribution trough, gas-liquid distributor and gas initial distribution device from top to bottom successively; Described dehydrating tower is also provided with steam blowing equipment; Between dehydrating tower and dehydration tail-gas blower fan, cyclone separator is set.
2. carbon black tail gas treating apparatus according to claim 1, is characterized in that: in described dehydrating tower, arrange lightweight structured packing.
3. carbon black tail gas treating apparatus according to claim 1, is characterized in that: between dehydrating tower and carbon black tail gas booster fan, be provided with electric water gate sealing valve.
4. carbon black tail gas treating apparatus according to claim 1, is characterized in that: described dehydration tail-gas blower fan is roots blower.
5. adopt the device of claim 1-4 any one to carry out the method for carbon black tail gas process, it is characterized in that: the carbon black tail gas inlet pressure controlling dehydrating tower is 2.5 ~ 3.5kPa, the carbon black tail gas outlet pressure of dehydrating tower is 0.5 ~ 1.5kPa, the carbon black tail gas outlet temperature of dehydrating tower 35 ~ 45 DEG C, feeding spraying pump outlet temperature 29 ~ 33 DEG C, feeding spraying pump outlet pressure 0.3 ~ 0.4MPa, dehydrating tower leaving water temperature 38 ~ 42 DEG C, dehydrating tower liquid level 1400 ~ 1600mm.
6. the application of the tail gas after method process according to claim 5, is characterized in that: treated tail gas passes into coke oven device as coke oven fuel.
7. application according to claim 6, is characterized in that: also after dehydration tail-gas blower fan, set gradually gas holder and row pressure machine during treated carbon black tail gas, and the outlet of row pressure machine is connected with coke oven device.
8. application according to claim 7, is characterized in that: between described dehydration tail-gas blower fan and gas holder, be also provided with water seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001685.7A CN103007696B (en) | 2013-01-05 | 2013-01-05 | Device and method for treating carbon black tail gas and application of tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001685.7A CN103007696B (en) | 2013-01-05 | 2013-01-05 | Device and method for treating carbon black tail gas and application of tail gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103007696A CN103007696A (en) | 2013-04-03 |
| CN103007696B true CN103007696B (en) | 2015-07-01 |
Family
ID=47957135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310001685.7A Active CN103007696B (en) | 2013-01-05 | 2013-01-05 | Device and method for treating carbon black tail gas and application of tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103007696B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624018B (en) * | 2015-02-04 | 2016-11-23 | 青岛黑猫炭黑科技有限责任公司 | In carbon black tail gas gas separate and comprehensive utilization method and the device of implementation method |
| CN105597501B (en) * | 2016-01-04 | 2019-01-01 | 中橡集团炭黑工业研究设计院 | A kind of method of exhuast gas desulfurization, denitration in carbon black process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5777004A (en) * | 1980-10-28 | 1982-05-14 | Kureha Chem Ind Co Ltd | Drying tower for chlorine coping with problem of static electricity |
| CN2465135Y (en) * | 2001-02-19 | 2001-12-12 | 唐大勇 | Evaporation type condenser |
| CN102229806B (en) * | 2011-05-24 | 2013-03-27 | 金能科技股份有限公司 | Green circular economy technology with coal coking as the main part |
| CN102688663B (en) * | 2012-06-14 | 2016-01-13 | 华电重工股份有限公司 | A kind of method and device reclaiming steam in the useless moisture of coal drying |
| CN203108399U (en) * | 2013-01-05 | 2013-08-07 | 中橡集团炭黑工业研究设计院 | Carbon black tail gas treatment device |
-
2013
- 2013-01-05 CN CN201310001685.7A patent/CN103007696B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103007696A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103575068B (en) | Lignite drying water recycling and drying tail gas recycling system | |
| CN104772114B (en) | A kind of organic adsorption saturated activity charcoal regenerating unit | |
| CN108237143A (en) | A kind of low energy consumption organic polluted soil dystopy thermal desorption processes | |
| CN108977247B (en) | Integrated TEG dehydration integrated process device and method | |
| CN104109545A (en) | Process and device for carbonizing coal in indirect heating and direct gas heating ways | |
| CN102964884B (en) | Hot cracking method process for preparing carbon black by using co-production of tail gas | |
| CN107400526A (en) | A kind of small particle low order low-temperature pyrolysis of coal method | |
| CN203561148U (en) | Lignite dry water recovering and dry tail gas recycling system | |
| CN103693643A (en) | Bamboo-based activated carbon for flue gas desulfurization | |
| CN103007696B (en) | Device and method for treating carbon black tail gas and application of tail gas | |
| CN205328941U (en) | Pyrolysis equipment | |
| CN203108399U (en) | Carbon black tail gas treatment device | |
| CN103939158B (en) | A kind of low-order coal purification power generation system | |
| CN102786951A (en) | Crude gas guiding device for coal pyrolyzing furnace | |
| CN103292303A (en) | System and method for recycling latent heat of water steam in tail gas of Slapple activating furnace | |
| CN102678195B (en) | Yellow phosphorus tail gas multiple gas-source combustion power generation system | |
| CN204897829U (en) | Cogeneration system of coal gas, tar and active carbon | |
| CN103571508A (en) | Continuous heat accumulating type dry distillation technology and dry distillation furnace | |
| CN203947067U (en) | A kind of novel controlled environmental protection and energy saving coke quenching auxiliary | |
| CN103265976B (en) | Method and device for ordinary-pressure oxygen-enriched continuous gasification-gas-steam combined cycle power-generation heat supply | |
| CN101993735B (en) | Biomass dry gasification centralized air supply system | |
| CN113185991B (en) | System and method for extracting volatile matters from pot-type calcining furnace and application of system and method | |
| CN201908075U (en) | Centralized gas supply system adopting biomass dry gasification method | |
| CN206089561U (en) | Utilize carbonization device of gas circulation heating | |
| CN204897695U (en) | Processing apparatus of oil field discarded object |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 643000 Zigong city of Sichuan Province, Ziliujing District Hing Road No. 168 Patentee after: Hao Yuan black Research & Design Institute of Chemical Industry Co. Ltd. Address before: 643000, 568, Hui Xing Road, Huili Eastern Road, Sichuan, Zigong Patentee before: China Rubber Group Carbon Black Research & Design Institute |