CN205948662U - Graphitizing furnace gas cleaning system in graphite product industry - Google Patents
Graphitizing furnace gas cleaning system in graphite product industry Download PDFInfo
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- CN205948662U CN205948662U CN201620981388.2U CN201620981388U CN205948662U CN 205948662 U CN205948662 U CN 205948662U CN 201620981388 U CN201620981388 U CN 201620981388U CN 205948662 U CN205948662 U CN 205948662U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
本实用新型公开了一种石墨制品工业中石墨化炉烟气净化系统，其焚烧炉的进烟口通过收集烟管与石墨化炉的出烟口连接，所述焚烧炉的出烟口与所述预热锅炉的进烟口连接，所述预热锅炉的出烟口与喷淋塔的下部连接，所述喷淋塔的上部设置有喷头，所述喷头与石灰水供应机构连通，所述喷淋塔的上端通过风机与烟囱的下部连通，所述喷淋塔的下端设置有排液管，所述焚烧炉分别与天然气管和配风管连通，所述预热锅炉内设置有换热器，所述换热器与用热器连通。本实用新型采用焚烧净化与吸收法脱硫技术相结合，可操作性强，并基本消减烟气中有害气体的排放，减少该工序对操作人员的人身侵害，达到国家环保有组织烟气排放要求。
The utility model discloses a graphitization furnace flue gas purification system in the graphite product industry. The smoke inlet of the incinerator is connected with the smoke outlet of the graphitization furnace through a collecting pipe, and the smoke outlet of the incinerator is connected to the smoke outlet of the graphitization furnace. The smoke inlet of the preheating boiler is connected, the smoke outlet of the preheating boiler is connected with the lower part of the spray tower, and the upper part of the spray tower is provided with a nozzle, and the nozzle is connected with the lime water supply mechanism. The upper end of the spray tower communicates with the lower part of the chimney through the fan, the lower end of the spray tower is provided with a liquid discharge pipe, the incinerator is respectively connected with the natural gas pipe and the air distribution pipe, and the preheating boiler is provided with a heat exchange device, and the heat exchanger communicates with the heat utilization device. The utility model adopts the combination of incineration purification and absorption desulfurization technology, which has strong operability, basically reduces the emission of harmful gases in the flue gas, reduces the personal injury of the operator in this process, and meets the national environmental protection and organized flue gas emission requirements.
Description
技术领域：Technical field:
本实用新型涉及一种石墨化炉，特别是涉及一种石墨制品工业中石墨化炉烟气净化系统。The utility model relates to a graphitization furnace, in particular to a gas purification system for the graphitization furnace in the graphite product industry.
背景技术：Background technique:
石墨制品工业中石墨化工序是由炭制品向石墨制品转变的重要工序，石墨化炉内通电加热的物质除炭制品外主要为冶金焦粒和焦粉；在其生产过程中会产生大量有害烟气，其有害成分为C及氧化物、S及氧化物，以及少量的NO、NO2等烟尘气，在传统工业中，对烟气的环保处置大部分为在炉上加罩吸走一定的烟气后简单处理就排入大气中，不能完全实现有组织无害排放。The graphitization process in the graphite product industry is an important process for the transformation from carbon products to graphite products. Except for carbon products, the materials heated by electricity in the graphitization furnace are mainly metallurgical coke particles and coke powder; a large amount of harmful smoke will be generated during the production process. Its harmful components are C and oxides, S and oxides, and a small amount of flue gas such as NO and NO 2. In traditional industries, most of the environmental protection disposal of flue gas is to add a cover to the furnace to suck away a certain amount of dust. After the flue gas is simply treated, it is discharged into the atmosphere, and the organized and harmless discharge cannot be fully realized.
实用新型内容：Utility model content:
本实用新型所要解决的技术问题是：克服现有技术的不足，提供一种设计合理、烟气净化效果好、余热利用充分且能够降低生产成本的石墨制品工业中石墨化炉烟气净化系统。The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a graphitization furnace flue gas purification system in the graphite product industry with reasonable design, good flue gas purification effect, sufficient waste heat utilization and reduced production cost.
本实用新型的技术方案是：The technical scheme of the utility model is:
一种石墨制品工业中石墨化炉烟气净化系统，包括焚烧炉和预热锅炉，所述焚烧炉的进烟口通过收集烟管与石墨化炉的出烟口连接，所述焚烧炉的出烟口与所述预热锅炉的进烟口连接，所述预热锅炉的出烟口与喷淋塔的下部连接，所述喷淋塔的上部设置有喷头，所述喷头与石灰水供应机构连通，所述喷淋塔的上端通过风机与烟囱的下部连通，所述喷淋塔的下端设置有排液管，所述焚烧炉分别与天然气管和配风管连通，所述预热锅炉内设置有换热器，所述换热器与用热器连通。A flue gas purification system for a graphitization furnace in the graphite product industry, comprising an incinerator and a preheating boiler, the smoke inlet of the incinerator is connected to the smoke outlet of the graphitization furnace through a collection pipe, and the outlet of the incinerator is The smoke outlet is connected to the smoke inlet of the preheating boiler, and the smoke outlet of the preheating boiler is connected to the lower part of the spray tower. The upper end of the spray tower communicates with the lower part of the chimney through the fan, the lower end of the spray tower is provided with a drain pipe, the incinerator is respectively connected with the natural gas pipe and the air distribution pipe, and the preheating boiler A heat exchanger is provided, which communicates with the heat consumer.
所述排液管的出液口与沉淀池连通，所述沉淀池为一个以上，多级沉淀池串接式连通，最后一级的所述沉淀池的液体与所述石灰水供应机构连通，循环利用。The liquid outlet of the discharge pipe is connected with the sedimentation tank, and there are more than one sedimentation tanks, and the multi-stage sedimentation tanks are connected in series, and the liquid of the last-stage sedimentation tank is connected with the lime water supply mechanism, Recycling.
所述天然气管和配风管上均设置有控制阀，所述烟囱内设置有净化器，所述烟囱的底部设置有排污口。Both the natural gas pipe and the air distribution pipe are provided with control valves, a purifier is provided in the chimney, and a sewage outlet is provided at the bottom of the chimney.
所述喷淋塔的下部间隔设置有篦板，所述预热锅炉的出烟口与所述喷淋塔的所述篦板的下方连接，所述喷淋塔的中部间隔设置有曲线折流板，增加烟气的流程。The lower part of the spray tower is provided with grate plates at intervals, the smoke outlet of the preheating boiler is connected with the bottom of the grate plates of the spray tower, and the middle interval of the spray tower is provided with curved baffles plate, to increase the flow of flue gas.
所述喷头为一个或多个，采用多个时，所有的所述喷头在同一高度平面或不同高度平面内间隔交错分布，所述喷头采用雾化喷头；所述换热器设置有温控器；所述焚烧炉设有燃烧自动控制器。There are one or more nozzles. When multiple nozzles are used, all the nozzles are alternately distributed in the same height plane or in different height planes. The nozzles are atomized nozzles; the heat exchanger is provided with a temperature controller ; The incinerator is provided with a combustion automatic controller.
本实用新型的有益效果是：The beneficial effects of the utility model are:
1、本实用新型采用焚烧净化与吸收法脱硫技术相结合，可操作性强，并基本消减烟气中有害气体的排放，减少该工序对操作人员的人身侵害，达到国家环保有组织烟气排放要求。1. The utility model adopts the combination of incineration purification and absorption desulfurization technology, which has strong operability, and basically reduces the emission of harmful gases in the flue gas, reduces the personal injury of the operator in this process, and achieves national environmental protection and organized flue gas emission Require.
2、本实用新型焚烧炉排出的气体送入预热锅炉加热热油或水等换热器，以便供其他用热单元使用，能够回收资源、降低生产成本。2. The gas discharged from the incinerator of the utility model is sent to the preheating boiler to heat heat exchangers such as hot oil or water, so as to be used by other heat-consuming units, which can recover resources and reduce production costs.
3、本实用新型吸收法脱硫工艺主要是使用石灰（CaO）浆液作洗涤剂，用泵打入喷淋塔，在塔中对烟气进行洗涤，从而除去烟气中的SO2以及少量的NO2。此技术比较成熟，而且具有脱硫效率高，运行费用较低和副产品易回收等优点，同时对NO2也可回收处理，降低运营成本。3. The absorption method desulfurization process of this utility model mainly uses lime (CaO) slurry as a detergent, pumps it into the spray tower, and washes the flue gas in the tower, thereby removing SO2 and a small amount of NO in the flue gas 2 . This technology is relatively mature, and has the advantages of high desulfurization efficiency, low operating costs and easy recovery of by-products. At the same time, NO 2 can also be recovered to reduce operating costs.
4、本实用新型通过配风和天然气，使石墨化炉排出的烟气在焚烧炉中充分燃烧，烟气中的C粉加热燃烧为CO2，CO加热发生氧化反应生成CO2。硫化物的氧化发生在370℃左右, 500℃裂解时分解程度达到最大,在600℃裂解时硫已基本全部生成为SO2，NO极不稳定与O2很快生成NO2，有效净化烟气。4. The utility model makes the flue gas discharged from the graphitization furnace fully combusted in the incinerator through the distribution of air and natural gas, and the C powder in the flue gas is heated and burned to CO 2 , and CO is heated and oxidized to generate CO 2 . The oxidation of sulfide occurs at about 370°C, and the degree of decomposition reaches the maximum when it is cracked at 500°C. When it is cracked at 600°C, almost all sulfur is generated into SO 2 , NO is extremely unstable and O 2 quickly generates NO 2 , effectively purifying flue gas .
5、本实用新型喷淋塔排出的废液经过多级沉淀处理，能够循环利用，既降低成本，又减少废水排放，综合利用率好。5. The waste liquid discharged from the spray tower of the utility model can be recycled through multi-stage sedimentation treatment, which not only reduces the cost, but also reduces the discharge of waste water, and the comprehensive utilization rate is good.
6、本实用新型设计合理、烟气净化效果好、余热利用充分且降低生产成本，能够广泛进行商品化开发，其吸收剂的资源丰富，成本低廉，废渣无毒可作垃圾处置，也可作为商品石膏回收，适用范围广，易于推广实施，经济效益明显。6. The utility model has reasonable design, good flue gas purification effect, sufficient waste heat utilization and reduced production cost, and can be widely used for commercial development. Its absorbent is rich in resources and low in cost. The recovery of commercial gypsum has a wide range of applications, is easy to popularize and implement, and has obvious economic benefits.
附图说明：Description of drawings:
图1为石墨制品工业中石墨化炉烟气净化系统的结构示意图。Figure 1 is a schematic structural diagram of a graphitization furnace flue gas purification system in the graphite product industry.
具体实施方式：detailed description:
实施例：参见图1，图中，1-石墨化炉，2-焚烧炉，3-预热锅炉，4-换热器，5-喷淋塔，6-喷头，7-风机，8-烟囱，9-沉淀池。Embodiment: See Fig. 1, among the figure, 1-graphitization furnace, 2-incinerator, 3-preheating boiler, 4-heat exchanger, 5-spray tower, 6-nozzle, 7-fan, 8-chimney , 9- Sedimentation tank.
石墨制品工业中石墨化炉烟气净化系统：Graphitization furnace flue gas purification system in graphite products industry:
a、设置焚烧炉2，并且焚烧炉2与天然气管和配风管连通，将石墨化炉1的烟气经收集烟管引入焚烧炉2，烟气在焚烧炉2内进行二次燃烧，消除其中的碳粉、一氧化碳、一氧化氮和硫及氧化物。a, the incinerator 2 is set, and the incinerator 2 is connected with the natural gas pipe and the air distribution pipe, and the flue gas of the graphitization furnace 1 is introduced into the incinerator 2 through the collection smoke pipe, and the flue gas is carried out secondary combustion in the incinerator 2 to eliminate Among them are carbon powder, carbon monoxide, nitrogen monoxide and sulfur and oxides.
b、经过焚烧炉2燃烧后的烟气继续引入预热锅炉3，高温烟气在预热锅炉3内和换热器4进行换热，吸收热量的换热器4与用热器连通，实现余热利用。b. The flue gas burned by the incinerator 2 continues to be introduced into the preheating boiler 3, and the high-temperature flue gas exchanges heat with the heat exchanger 4 in the preheating boiler 3, and the heat exchanger 4 that absorbs heat communicates with the heat consumer to realize use of excess heat.
c、经过换热的烟气引入喷淋塔5的下部，在风机7的作用下，烟气向喷淋塔5的顶部运动，在喷淋塔5内设置喷头6，向喷淋塔5内喷射石灰水，对烟气进行洗涤，除去烟气中的SO2以及少量的NO2。c. The heat-exchanged flue gas is introduced into the lower part of the spray tower 5. Under the action of the fan 7, the flue gas moves to the top of the spray tower 5. Spray lime water to wash the flue gas and remove SO 2 and a small amount of NO 2 in the flue gas.
d、经过洗涤的烟气经过风机7引入烟囱8的下部，并且烟囱8的上端排入大气中，在喷淋塔5的下端设置有排液管，将废液排出。d. The washed flue gas is introduced into the lower part of the chimney 8 through the fan 7, and the upper end of the chimney 8 is discharged into the atmosphere, and a drain pipe is arranged at the lower end of the spray tower 5 to discharge the waste liquid.
排液管的出液口与沉淀池9连通，沉淀池9为一个以上，多级沉淀池串接式连通，最后一级的沉淀池9的液体与石灰水供应机构连通，循环利用。天然气管和配风管上均设置有控制阀，烟囱8内设置有净化器，烟囱8的底部设置有排污口。The liquid outlet of the discharge pipe is connected with the settling tank 9. There are more than one settling tanks. The multi-stage settling tanks are connected in series. The liquid of the last settling tank 9 is connected with the lime water supply mechanism for recycling. Both the natural gas pipe and the air distribution pipe are provided with control valves, a purifier is provided in the chimney 8 , and a sewage outlet is provided at the bottom of the chimney 8 .
喷淋塔5的下部间隔设置有篦板，预热锅炉3的出烟口与喷淋塔5的篦板的下方连接，实现分流，喷淋塔5的中部间隔设置有曲线折流板，增加烟气的流程，提高洗涤效果。The lower part of the spray tower 5 is provided with a grate plate at intervals, and the smoke outlet of the preheating boiler 3 is connected with the bottom of the grate plate of the spray tower 5 to realize flow splitting. The middle interval of the spray tower 5 is provided with a curved baffle to increase The flow of flue gas improves the washing effect.
喷头6为一个或多个，采用多个时，所有的喷头6在同一高度平面或不同高度平面内间隔交错分布，喷头6采用雾化喷头；换热器4设置有温控器；焚烧炉2设有燃烧自动控制器。There are one or more nozzles 6. When multiple nozzles are used, all the nozzles 6 are distributed alternately in the same height plane or in different height planes. The nozzles 6 are atomized nozzles; the heat exchanger 4 is provided with a temperature controller; the incinerator 2 Equipped with combustion automatic controller.
本实用新型反应原理及反应式如下：The utility model reaction principle and reaction formula are as follows:
C+O2→CO2 C+O 2 →CO 2
NO+O2→NO2 NO+O 2 →NO 2
CO+O2→CO2 CO+O 2 →CO 2
S+O2→点燃→SO2 S+O 2 →ignition →SO 2
SO2+H2O→H2SO3 SO 2 +H 2 O→H 2 SO 3
HSO2+Ca（OH）2→CaSO4↓+H2OHSO 2 +Ca(OH) 2 →CaSO 4 ↓+H 2 O
NO2+H2O→HNO3+NONO 2 +H 2 O→HNO 3 +NO
Ca（OH）2+HNO3→Ca（NO3）2↓+H2OCa(OH) 2 +HNO 3 →Ca(NO 3 ) 2 ↓+H 2 O
以上所述，仅是本实用新型的较佳实施例而已，并非对本实用新型作任何形式上的限制，凡是依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本实用新型技术方案的范围内。The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.
Claims (5)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989606A (en) * | 2017-02-24 | 2017-07-28 | 河南易成新能源股份有限公司 | Graphite cathode material is calcined high-temperature flue gas heat energy recycling system and method |
| CN110260672A (en) * | 2019-06-03 | 2019-09-20 | 盐城工学院 | A kind of purification of heat treatment waste gas burning and waste-heat recovery device |
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2016
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989606A (en) * | 2017-02-24 | 2017-07-28 | 河南易成新能源股份有限公司 | Graphite cathode material is calcined high-temperature flue gas heat energy recycling system and method |
| CN106989606B (en) * | 2017-02-24 | 2019-01-18 | 河南易成新能源股份有限公司 | Graphite cathode material roasts high-temperature flue gas heat energy recycling system and method |
| CN110260672A (en) * | 2019-06-03 | 2019-09-20 | 盐城工学院 | A kind of purification of heat treatment waste gas burning and waste-heat recovery device |
| CN110260672B (en) * | 2019-06-03 | 2020-12-22 | 盐城工学院 | Heat treatment waste gas combustion purification and waste heat recovery device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180416 Address after: 101200 Beijing Pinggu District Zhongguancun science and Technology Park Pinggu yuan Hing Valley A District No. 7 -42 Co-patentee after: Feng Jianguo Patentee after: Sheng Rui Energy Technology Co.,Ltd. Co-patentee after: Ding Jiebin Address before: 453600 Beiyuan Lane 2, Baiquan Town, Huixian City, Xinxiang, Henan Co-patentee before: Ding Jiebin Patentee before: Feng Jianguo |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20190826 Address after: 453600 East 3 Industrial Avenue, Hongzhou Industrial Park, Huixian City, Xinxiang City, Henan Province Co-patentee after: Sheng Rui Energy Technology Co.,Ltd. Patentee after: Henan Gaoshuo New Material Technology Co.,Ltd. Co-patentee after: Feng Jianguo Co-patentee after: Ding Jiebin Address before: 101200 Beijing Pinggu District Zhongguancun Science and Technology Park Pinggu Park Xinggu A District 7-42 Co-patentee before: Feng Jianguo Patentee before: Sheng Rui Energy Technology Co.,Ltd. Co-patentee before: Ding Jiebin |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 453600 East 3 Industrial Avenue, Hongzhou Industrial Park, Huixian City, Xinxiang City, Henan Province Co-patentee after: Sheng Rui Energy Technology Co.,Ltd. Patentee after: Henan Shengrui carbon material technology Co.,Ltd. Co-patentee after: Feng Jianguo Co-patentee after: Ding Jiebin Address before: 453600 East 3 Industrial Avenue, Hongzhou Industrial Park, Huixian City, Xinxiang City, Henan Province Co-patentee before: Sheng Rui Energy Technology Co.,Ltd. Patentee before: Henan Gaoshuo New Material Technology Co.,Ltd. Co-patentee before: Feng Jianguo Co-patentee before: Ding Jiebin |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200727 Address after: 453600 East 3 Industrial Avenue, Hongzhou Industrial Park, Huixian City, Xinxiang City, Henan Province Co-patentee after: Sheng Rui Energy Technology Co.,Ltd. Patentee after: Henan Shengrui carbon material technology Co.,Ltd. Co-patentee after: Feng Jianguo Co-patentee after: Ding Jiebin Co-patentee after: Shao Mei Address before: 453600 East 3 Industrial Avenue, Hongzhou Industrial Park, Huixian City, Xinxiang City, Henan Province Co-patentee before: Sheng Rui Energy Technology Co.,Ltd. Patentee before: Henan Shengrui carbon material technology Co.,Ltd. Co-patentee before: Feng Jianguo Co-patentee before: Ding Jiebin |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 |