CN104107613A - Asphalt flue gas processing system and processing technology - Google Patents

Asphalt flue gas processing system and processing technology Download PDF

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Publication number
CN104107613A
CN104107613A CN201410282260.2A CN201410282260A CN104107613A CN 104107613 A CN104107613 A CN 104107613A CN 201410282260 A CN201410282260 A CN 201410282260A CN 104107613 A CN104107613 A CN 104107613A
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CN
China
Prior art keywords
flue gas
cooling
cooling tank
treatment
gas
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Pending
Application number
CN201410282260.2A
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Chinese (zh)
Inventor
苏醒
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SHANGHAI AOTI NEW MATERIAL TECHNOLOGY CONSULTING Co Ltd
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SHANGHAI AOTI NEW MATERIAL TECHNOLOGY CONSULTING Co Ltd
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Priority to CN201410282260.2A priority Critical patent/CN104107613A/en
Publication of CN104107613A publication Critical patent/CN104107613A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an asphalt flue gas processing system, which is characterized by comprising a cyclone separator used for separating and removing solid substance in flue gas, wherein the residual gas and liquid substance in the flue gas can be introduced in a first-level cooling tank; the first-level cooling tank used for cooling a gas/liquid mixture processed by the cyclone separator, wherein a part of oil gas in the flue gas is cooled and then changed into a liquid state, and then is deposited with the liquid substance together at the bottom of the first-level cooling tank, and then the residual flue gas is continuously introduced to a second-level cooling tank; the second-level cooling tank used for cooling the flue gas processed by the first-level cooling tank, wherein other oil gas in the residual flue gas is cooled and deposited at the bottom of the second-level cooling tank, and the residual flue gas is introduced into a plasma generator set; the plasma generator set used for decomposing the harmful substance in the flue gas processed by the second-level cooling tank; and an induced draft fan for discharging the processed flue gas. The asphalt flue gas processing system and the processing technology can effectively process the harmful substance in the flue gas and can fully recover the volatile matter.

Description

A kind of bitumen flue gas treatment system and treatment process thereof
Technical field
The present invention relates to a kind of technical field of smoke processing system, be specifically related to a kind of bitumen flue gas treatment system and treatment process thereof, particularly its system syndeton.
Background technology
In the discharge bitumen flue gas of pitch batch plant, be conventionally mixed with the material such as dust, low molecule oil smoke.The main method that solves asphalt smoke gas purifying is at present by mechanical collision formula, activated carbon filtration formula and electrostatic adsorption type, although they can reduce bitumen flue gas to a certain extent, not thorough, environmental pollution still has following problem:
1, for mechanical collision formula, windage is large, and purification efficiency is low, can not remove molecule, can not eliminate the unusual smell and the shortcoming such as pernicious gas;
2, for activated carbon filtration formula, very easily saturated, the replacement cycle is short, and the proportion of goods damageds and cost improve;
3, for Electrostatic Absorption mode, pure absorption smoke particle, efficiently traps by soot is charged, but exists in actual applications pole plate to be difficult to clean, effectively dispelling abnormal flavor, the shortcomings such as the flue gas of can not degrading molecule.
The application number that Jiangyin Keya Environmental Protection Equipment Co., Ltd submitted on December 18th, 2012 is CN201220701204.4, the utility model that name is called plasma asphalt smoke gas purifying equipment discloses a kind of plasma asphalt smoke gas purifying equipment, it is characterized in that it comprises scrubbing tower, plasma for purification machine and chimney, the gas outlet of described scrubbing tower is connected with plasma for purification machine by flue, the import of described scrubbing tower connects flue gas collecting pipe, in described purification casing, from air inlet to gas outlet, be disposed with homogenizing plate, smoke separator, oil water separator, coated by high-molecular film filter screen, multiple plasma electric field purification layer and activated carbon granule layer, the gas outlet of described purification casing is connected with centrifugal blower, the outlet of described centrifugal blower is connected with chimney by escape pipe.This utility model medium pitch flue gas adopts scrubbing tower to reduce flue-gas temperature, and dilution flue gas concentration, still exists the harm of secondarily polluted water, and the water washing also needs to carry out water-oil separating.
Summary of the invention
The object of the present invention is to provide a kind of bitumen flue gas treatment system, do not have the phenomenon of secondarily polluted water, and recyclable fugitive constituent.
For achieving the above object, technical scheme of the present invention is as follows: a kind of bitumen flue gas treatment system, it is characterized in that described equipment comprises cyclone separator, and for separating of the solid matter of removing in flue gas, in flue gas, remaining gas-liquid material leads to one-level cooling tank; One-level cooling tank, carry out cooling to cyclone separator gas-liquid mixture after treatment, wherein the part oil gas in flue gas be cooled after liquefy, with the bottom that is deposited on described one-level cooling tank together with liquid substance wherein, residue flue gas continues to lead to secondary cooling tank; Secondary cooling tank, cooling to carrying out again through one-level cooling tank flue gas after treatment, after being cooled, all the other oil gas in described residue flue gas are deposited on the bottom of described secondary refrigerated cylinder, and remaining flue gas leads to plasma unit; Plasma unit, for decomposing the harmful substance through secondary cooling tank flue gas after treatment; Air-introduced machine, discharges flue gas after treatment.Wherein one-level cooling tank adopts the recirculated cooling water of normal temperature as cooling media, and secondary cooling tank adopts the frozen water of 0 ~ 5 DEG C as cooling media.
Another object of the present invention is to provide a kind of bitumen flue gas treatment process, do not have the phenomenon of secondarily polluted water, and recyclable fugitive constituent.
To achieve these goals, technical scheme of the present invention is as follows: a kind of bitumen flue gas treatment process, is characterized in that this technique comprises the following steps: A, cyclone separator separate the solid matter of removing in flue gas; B, one-level cooling tank carry out cooling to cyclone separator gas-liquid mixture after treatment, wherein the part oil gas in flue gas be cooled after liquefy, with the bottom that is deposited on described one-level cooling tank together with liquid substance wherein, residue flue gas continues to lead to secondary cooling tank; C, secondary cooling tank are cooling to carrying out again through one-level cooling tank flue gas after treatment, are deposited on the bottom of described secondary refrigerated cylinder after all the other oil gas in described residue flue gas are cooled, and remaining flue gas leads to plasma unit; D, plasma unit adsorb, decompose the harmful substance in secondary cooling tank flue gas after treatment; E, air-introduced machine are discharged flue gas after treatment.
The present invention adopts cyclone separator to remove the solid matter in flue gas, adopts the cooling mode of two-stage cooling tank by cooling oil gas wherein collection, finally utilizes plasma unit to adsorb, decompose the harmful substance in two-stage cooling tank flue gas after treatment.From the recovered oil of two-stage cooling tank and plasma group bottom deposition reclaims, can return to batch plant uses.The invention has the advantages that the harmful substance in effective smoke treatment, and fully reclaim fugitive constituent wherein.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of cooling tank.
Fig. 3 is the top view of cooling tank.
Detailed description of the invention
As shown in Figure 1, a kind of bitumen flue gas treatment system, is characterized in that described equipment comprises cyclone separator 2, discharges the solid matter in flue gas for separating of removing batch plant 1, and in flue gas, remaining gas-liquid material leads to one-level cooling tank 3; One-level cooling tank 3, carry out cooling to cyclone separator 2 gas-liquid mixture after treatment, wherein the part oil gas in flue gas be cooled after liquefy, with the bottom that is deposited on described one-level cooling tank 3 together with liquid substance wherein, residue flue gas continues to lead to secondary cooling tank 4; Secondary cooling tank 4, cooling to carrying out again through one-level cooling tank 3 flue gas after treatment, after being cooled, all the other oil gas in described residue flue gas are deposited on the bottom of described secondary cooling tank 4, and remaining flue gas leads to plasma unit 5; Plasma unit 5, for decomposing the harmful substance through secondary cooling tank 4 flue gases after treatment.Air-introduced machine 6, discharges flue gas after treatment; The recovered oil of described one-level cooling tank 3, secondary cooling tank 4 and plasma group 5 bottom depositions flows back to batch plant through pipeline.One-level cooling tank, secondary cooling tank all can be in series by multiple cooling tanks.
Be provided with the T/RH probe 7 of measuring temperature and relative humidity and the TVOC thieff hatch 8 of measuring TOVC concentration at the input of cyclone separator 2 and the output of output, one-level cooling tank 3 outputs, secondary cooling tank 4 outputs and plasma group 5.One-level cooling tank 3 is also connected with circulating cooling water pump 9, adopts the recirculated cooling water of normal temperature as cooling media, and secondary cooling tank 4 is connected with frozen water refrigerator 10, adopts the frozen water of 0 ~ 5 DEG C as cooling media.
As shown in Figures 2 and 3, described cooling tank comprises tank body 11, the top of described tank body 11 offers air inlet 12, the below of air inlet is air-inlet cavity 13, the below of air-inlet cavity 13 is cooling zone, in cooling zone, be provided with the some cooling tubes that are communicated with air-inlet cavity 14, cooling zone is also provided with water inlet pipe 15 and outlet pipe 16, below, cooling zone is provided with the dirt colleceting area being communicated with cooling tube, the bottom of dirt colleceting area is slope, the low side on slope is provided with blow-off pipe 17, and described cooling tank is also provided with air outlet 18 above dirt colleceting area.First the flue gas that enters tank body 11 enters in air-inlet cavity 13 by air inlet 12, because the sectional area of air-inlet cavity 13 is much larger than the sectional area of air inlet 12, therefore the flue gas wind speed that enters air-inlet cavity 13 declines rapidly, then enter in cooling tube 14, by passing into cooling media water in cooling zone, to carry out heat exchange cooling, the cooling rear tube wall sedimentation along cooling tube of oil gas wherein, drop down onto the dirt colleceting area of below, cooling zone, under the slope current of bottom, dirt colleceting area, discharge from blow-off pipe 17, utilize the remaining flue gas of recovery tube to discharge from air outlet.Wherein cooling tank adopts the stainless steel tube of diameter 25 ~ 80mm, not sticky inside and outside wall, and inwall fineness reaches mirror effect, is convenient to cleaning and the recycling of oil gas in flue gas.
In the present invention, one-level cooling tank all adopts the same cooling tank with secondary cooling tank, and one-level cooling tank is connected with circulating cooling water pump 9, adopts the recirculated cooling water of normal temperature as cooling media; Secondary cooling tank 4 is connected with frozen water refrigerator 10, adopts the frozen water of 0 ~ 5 DEG C as cooling media.Cooling by flue gas being carried out to secondary, remove oil gas wherein, and realize the wherein recycling of oil gas.In the time that outdoor environment temperature is lower, refrigerator needn't be opened, by circulating water.
The flue gas of discharging from secondary cooling tank, finally enter plasma unit 5, the utmost point bar that plasma unit comprises some pole plates and matches with described pole plate, described utmost point bar both sides are provided with zigzag tip, utilize the point discharge of utmost point bar, air to the high-voltage electrostatic field by between pole plate and utmost point bar ionizes and produces certain density ozone, thereby the harmful substance in flue gas is taken off as bioxin, BaP decile, and utilize flat pole plate to adsorb remaining light oil in flue gas, light oil, after pole plate landing, can reclaim and drop into batch plant again.Pole plate can be connected with high-voltage positive electrode or negative pole with utmost point bar, becomes corresponding positive plate and cathode strip or minus plate and anode strap.Pole plate and utmost point bar both positive and negative polarity each other.Or pole plate is that anode, utmost point bar are negative electrodes.
T/RH probe 7 by temperature and relative humidity is measured temperature and the relative humidity of each nodes, can detect one-level cooling tank and the cooling effect of secondary cooling tank, for feeding back to control module to control the internal circulating load of cooling water;
Organic exhaust gas concentration TVOC probe is for the online overall process effect that detects, and feed back to control module to control the quantity of opening plasma unit, plasma unit is formed by the series-parallel connection of some groups of plasma machines, described plasma group series connection increases absorption, resolving time, and parallel connection increases effective contact area; This plasma unit adopts assembly type, and work module can easily be extracted out from casing, conveniently observes and cleans;
Plasma unit is provided with voltage alarm system, and in the time that the greasy dirt adsorbing on its pole plate, utmost point bar is stacked into a certain degree, its ionizing power can reduce, and when discharge voltage is increased to a certain setting value, system can automatic alarm prompting be cleaned and safeguard;
Asphalt flue gas treatment device of the present invention also adopts supersonic wave cleaning machine, and cleaning fluid adopts running water to add efficient low foam metal cleaner, and supersonic wave cleaning machine has filtering function, to reduce water consumption.

Claims (6)

1. a bitumen flue gas treatment system, is characterized in that described equipment comprises cyclone separator, and for separating of the solid matter of removing in flue gas, in flue gas, remaining gas-liquid material leads to one-level cooling tank; One-level cooling tank, carry out cooling to cyclone separator gas-liquid mixture after treatment, wherein the part oil gas in flue gas be cooled after liquefy, with the bottom that is deposited on described one-level cooling tank together with liquid substance wherein, residue flue gas continues to lead to secondary cooling tank; Secondary cooling tank, cooling to carrying out again through one-level cooling tank flue gas after treatment, after being cooled, all the other oil gas in described residue flue gas are deposited on the bottom of described secondary refrigerated cylinder, and remaining flue gas leads to plasma unit; Plasma unit, for decomposing the harmful substance through secondary cooling tank flue gas after treatment; Air-introduced machine, discharges flue gas after treatment.
2. a kind of bitumen flue gas treatment system as claimed in claim 1, is characterized in that being provided with the T/RH probe 7 of measuring temperature and relative humidity and the TVOC thieff hatch of measuring TOVC concentration at the input of cyclone separator and the output of output, one-level cooling tank output, secondary cooling tank output and plasma group.
3. a kind of bitumen flue gas treatment system as claimed in claim 2, it is characterized in that one-level cooling tank is also connected with circulating cooling water pump, adopt the recirculated cooling water of normal temperature as cooling media, secondary cooling tank is connected with frozen water refrigerator, adopts the frozen water of 0 ~ 5 DEG C as cooling media.
4. a kind of bitumen flue gas treatment system as claimed in claim 3, is characterized in that one-level cooling tank, secondary cooling tank all can be in series by multiple cooling tanks.
5. a kind of bitumen flue gas treatment system as described in claim 3 or 4, it is characterized in that described cooling tank comprises tank body, the top of described tank body offers air inlet, the below of air inlet is air-inlet cavity, the below of air-inlet cavity is cooling zone, in cooling zone, be provided with the some cooling tubes that are communicated with air-inlet cavity, cooling zone is also provided with water inlet pipe and outlet pipe, below, cooling zone is provided with the dirt colleceting area being communicated with cooling tube, the bottom of dirt colleceting area is slope, the low side on slope is provided with blow-off pipe, and described cooling tank is also provided with the air outlet communicating with cooling tube.
6. a bitumen flue gas treatment process, is characterized in that this technique comprises the following steps: A, cyclone separator separate the solid matter of removing in flue gas; B, one-level cooling tank carry out cooling to cyclone separator gas-liquid mixture after treatment, wherein the part oil gas in flue gas be cooled after liquefy, with the bottom that is deposited on described one-level cooling tank together with liquid substance wherein, residue flue gas continues to lead to secondary cooling tank; C, secondary cooling tank are cooling to carrying out again through one-level cooling tank flue gas after treatment, are deposited on the bottom of described secondary refrigerated cylinder after all the other oil gas in described residue flue gas are cooled, and remaining flue gas leads to plasma unit; D, plasma unit adsorb, decompose the harmful substance in secondary cooling tank flue gas after treatment; E, air-introduced machine are discharged flue gas after treatment.
CN201410282260.2A 2014-06-23 2014-06-23 Asphalt flue gas processing system and processing technology Pending CN104107613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410282260.2A CN104107613A (en) 2014-06-23 2014-06-23 Asphalt flue gas processing system and processing technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410282260.2A CN104107613A (en) 2014-06-23 2014-06-23 Asphalt flue gas processing system and processing technology

Publications (1)

Publication Number Publication Date
CN104107613A true CN104107613A (en) 2014-10-22

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CN201410282260.2A Pending CN104107613A (en) 2014-06-23 2014-06-23 Asphalt flue gas processing system and processing technology

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105126515A (en) * 2015-08-17 2015-12-09 上海台安建材科技有限公司 Asphalt smoke comprehensive environmental protection treatment system and applications thereof
CN105879549A (en) * 2016-05-17 2016-08-24 浙江省环境工程有限公司 Purification system for heavy oil and pitch flue gas in expressway maintenance station field
CN106215607A (en) * 2016-06-27 2016-12-14 绍兴立源科技信息有限公司 A kind of forming machine waste gas low grade fever generates electricity+degrades the device of VOC and technique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134148A (en) * 2006-09-01 2008-03-05 贵阳铝镁设计研究院 Bitumen flue gas purifying method and device
CN102430258A (en) * 2011-09-27 2012-05-02 江苏凯伦建材股份有限公司 Asphalt gas processing equipment
CN203002160U (en) * 2012-12-18 2013-06-19 江阴科亚环保设备有限公司 Plasma asphalt gas purification device
CN204429021U (en) * 2014-06-23 2015-07-01 上海遨提新材料技术咨询有限公司 A kind of bitumen flue gas treatment system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134148A (en) * 2006-09-01 2008-03-05 贵阳铝镁设计研究院 Bitumen flue gas purifying method and device
CN102430258A (en) * 2011-09-27 2012-05-02 江苏凯伦建材股份有限公司 Asphalt gas processing equipment
CN203002160U (en) * 2012-12-18 2013-06-19 江阴科亚环保设备有限公司 Plasma asphalt gas purification device
CN204429021U (en) * 2014-06-23 2015-07-01 上海遨提新材料技术咨询有限公司 A kind of bitumen flue gas treatment system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105126515A (en) * 2015-08-17 2015-12-09 上海台安建材科技有限公司 Asphalt smoke comprehensive environmental protection treatment system and applications thereof
CN105879549A (en) * 2016-05-17 2016-08-24 浙江省环境工程有限公司 Purification system for heavy oil and pitch flue gas in expressway maintenance station field
CN106215607A (en) * 2016-06-27 2016-12-14 绍兴立源科技信息有限公司 A kind of forming machine waste gas low grade fever generates electricity+degrades the device of VOC and technique
CN106215607B (en) * 2016-06-27 2019-05-14 绍兴立源科技信息有限公司 A kind of forming machine exhaust gas low-heat generates electricity+degrades the device and technique of VOC

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Application publication date: 20141022