CN220047595U - A high-box metal bag dust collection device for nickel converters - Google Patents
A high-box metal bag dust collection device for nickel converters Download PDFInfo
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- CN220047595U CN220047595U CN202321359680.7U CN202321359680U CN220047595U CN 220047595 U CN220047595 U CN 220047595U CN 202321359680 U CN202321359680 U CN 202321359680U CN 220047595 U CN220047595 U CN 220047595U
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- 239000002184 metal Substances 0.000 title claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000000428 dust Substances 0.000 title claims abstract description 39
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 12
- 230000005484 gravity Effects 0.000 claims abstract description 19
- 238000012681 fiber drawing Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 17
- 239000003546 flue gas Substances 0.000 abstract description 17
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000007664 blowing Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000012716 precipitator Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- Y02P10/20—Recycling
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
技术领域Technical field
本实用新型涉及冶金、煤矿、干法水泥等工业除尘领域，具体涉及一种用于镍转炉的高箱体金属袋式收尘装置。The utility model relates to the fields of industrial dust removal such as metallurgy, coal mines, and dry process cement, and specifically relates to a high-box metal bag dust collection device for nickel converters.
背景技术Background technique
镍冶炼厂闪速炉车间转炉收尘为65m2电除尘器。由于转炉为间断式吹炼生产模式，烟气浓度和温度波动大，在转炉停吹时，由于烟气温度下降，加之电收尘器工艺孔洞较多，漏风率较高，在电收尘器末端电场人孔门、振打穿墙孔及收尘器出口喇叭等温降较大的部位易造成烟气低温结露，极易对电收尘器壳体和电场内部极板极线造成腐蚀，严重影响了电收尘器正常运行。另外，烟尘中石英占比高、石英不荷电，导致烟气中粉尘比电阻高，使得传统电除尘器收尘效率低。The converter dust collection in the flash furnace workshop of the nickel smelting plant is a 65m2 electrostatic precipitator. Since the converter is an intermittent blowing production mode, the flue gas concentration and temperature fluctuate greatly. When the converter stops blowing, the temperature of the flue gas drops. In addition, the electric precipitator has many process holes and the air leakage rate is high. When the converter stops blowing, the air leakage rate is high. Parts with large temperature drops such as the terminal electric field manhole door, the vibration wall hole, and the dust collector outlet speaker can easily cause low-temperature condensation of flue gas, which can easily cause corrosion to the electric dust collector shell and the internal plate electrode lines of the electric field. Seriously affecting the normal operation of the electrostatic precipitator. In addition, the proportion of quartz in the flue gas is high and the quartz is not charged, resulting in a high specific resistance of the dust in the flue gas, making the dust collection efficiency of the traditional electrostatic precipitator low.
实用新型内容Utility model content
针对上述技术问题，本实用新型的目的是提供一种用于镍转炉的高箱体金属袋式收尘装置。In view of the above technical problems, the purpose of this utility model is to provide a high-box metal bag dust collector for nickel converters.
本实用新型通过以下技术方案实现：The utility model is realized through the following technical solutions:
一种用于镍转炉的高箱体金属袋式收尘装置，包括进气箱，所述进气箱右侧设有重力沉降室，所述重力沉降室内设有阻流挡板，所述重力沉降室右侧设有金属滤袋室，所述金属滤袋室上部设有高箱体，所述高箱体下部设有喷吹管，所述高箱体右侧设有出气口，所述重力沉降室和金属滤袋室下部设有灰斗。A high-box metal bag dust collection device for nickel converters, including an air inlet box. A gravity settling chamber is provided on the right side of the air inlet box. A flow blocking baffle is provided in the gravity settling chamber. The gravity settling chamber is provided with a flow blocking baffle. There is a metal filter bag room on the right side of the settling chamber. There is a high box on the upper part of the metal filter bag room. There is a blow pipe on the lower part of the high box. There is an air outlet on the right side of the high box. The gravity There is an ash hopper at the bottom of the settling chamber and metal filter bag chamber.
所述金属滤袋室中金属过滤介质是由金属纤维拉丝经高温真空烧结成一体而形成网状立体结构。The metal filter medium in the metal filter bag chamber is made of metal fiber drawing and high-temperature vacuum sintering into one body to form a mesh-like three-dimensional structure.
所述高箱体侧面设有一个人孔门，减少整体收尘器的漏风率。A manhole door is provided on the side of the high box to reduce the air leakage rate of the overall dust collector.
所述喷吹管与气缸相连，所述喷吹管上设置导流短管通向金属滤袋室。The blow pipe is connected to the cylinder, and a short guide tube is provided on the blow pipe to lead to the metal filter bag chamber.
本实用新型的有益效果在于：The beneficial effects of this utility model are:
1、具有高过滤精度、高孔隙率、高透气性、耐高温、耐腐蚀、抗气流冲击、抗机械振动等特点。1. It has the characteristics of high filtration precision, high porosity, high air permeability, high temperature resistance, corrosion resistance, air flow impact resistance, and mechanical vibration resistance.
2、利用高箱体降低烟气在流动过程中的热损失，烟气温度波动小，不易出现结露现象，最大限度降低电收尘器的腐蚀；利用高箱体的净气室空间大小，其空间较矮箱约大10倍，使得烟气在高箱体内流速均匀、阻力小、收尘效率高；高箱体顶部只有一个人孔漏风率低保温效果好。2. Use the tall box to reduce the heat loss of the flue gas during the flow process. The temperature fluctuation of the flue gas is small, and condensation is not easy to occur, which minimizes the corrosion of the electric precipitator. The size of the clean air chamber of the tall box is used to Its space is about 10 times larger than that of the short box, which allows the flue gas to flow evenly in the tall box, with low resistance and high dust collection efficiency. There is only one manhole at the top of the tall box, which has a low air leakage rate and good thermal insulation effect.
附图说明Description of the drawings
图1为本实用新型的结构示意图；Figure 1 is a schematic structural diagram of the utility model;
图中：1-进气箱，2-重力沉降室，3-阻流挡板，4-人孔门，5-喷吹管，6-灰斗，7-高箱体，8-滤袋区，9-出气口。In the picture: 1-air inlet box, 2-gravity settling chamber, 3-blocking baffle, 4-manhole door, 5-injection pipe, 6-ash hopper, 7-high box, 8-filter bag area, 9-Air outlet.
具体实施方式Detailed ways
下面结合附图对本实用新型对更详细的说明。The utility model will be described in more detail below in conjunction with the accompanying drawings.
如图1所示，一种用于镍转炉的高箱体金属袋式收尘装置，包括进气箱1，进气箱1右侧设有重力沉降室2，重力沉降室2内设有阻流挡板3，重力沉降室2右侧设有金属滤袋室8，金属滤袋室8上部设有高箱体7，高箱体7下部设有喷吹管5，高箱体7右侧设有出气口9，重力沉降室2和金属滤袋室8下部设有灰斗6。As shown in Figure 1, a high-box metal bag dust collection device for nickel converters includes an air inlet box 1. A gravity settling chamber 2 is provided on the right side of the air inlet box 1. There is a resistance chamber 2 inside the gravity settling chamber 2. Flow baffle 3, a metal filter bag chamber 8 is provided on the right side of the gravity settling chamber 2, a high box 7 is provided on the upper part of the metal filter bag chamber 8, a blow pipe 5 is provided on the lower part of the high box 7, and a blow pipe 5 is provided on the right side of the high box 7. There is an air outlet 9, and an ash hopper 6 is provided at the bottom of the gravity settling chamber 2 and the metal filter bag chamber 8.
高箱体7侧面设有一个人孔门4，高箱体7的高度为4.5米，是以金属滤袋长度定的箱体高度，方便在高箱体内更换滤袋。利用高箱体降低烟气在流动过程中的热损失，烟气温度波动小，不易出现结露现象，最大限度降低电收尘器的腐蚀；利用高箱体的净气室空间大小，其空间较矮箱约大10倍，使得烟气在高箱体内流速均匀、阻力小、收尘效率高。高箱体顶部只有一个人孔而矮箱体20个人孔，相比矮箱体漏风率低保温效果好。A manhole door 4 is provided on the side of the high box 7. The height of the high box 7 is 4.5 meters, which is the height of the box determined by the length of the metal filter bag, making it convenient to replace the filter bag in the high box. The high box is used to reduce the heat loss of the flue gas during the flow process. The temperature fluctuation of the flue gas is small, condensation is not easy to occur, and the corrosion of the electric precipitator is minimized. The size of the clean air chamber of the tall box is used to increase the space. The shorter box is about 10 times larger, which makes the flue gas flow evenly in the tall box, with low resistance and high dust collection efficiency. There is only one manhole at the top of the tall box while the short box has 20 manholes. Compared with the short box, the air leakage rate is lower and the insulation effect is better.
利用金属滤袋室（滤袋区）提高除尘器收尘率以及使用寿命。金属滤袋室3中金属过滤介质由金属纤维拉丝经高温真空烧结成一体而形成网状立体结构。具有高过滤精度、高孔隙率、高透气性、耐高温（450℃）、耐腐蚀、抗气流冲击、抗机械振动等特点。由于转炉烟尘SiO2占比高、SiO2不荷电导致粉尘比电阻高，和烟气温度波动大等特性，结合现场场地、在用设备性能和转炉工艺调控现状，综合考虑投入成本、检修维护费用、运行维护技术难度和除尘效率等因素，创新性的选用高箱体金属袋式收尘器为转炉除尘设备。高箱体金属袋式收尘器较矮箱体金属袋式收尘器密封性高，漏风率低，运行阻力小。高箱体收尘器比矮箱体收尘器净气室空间大10倍，烟气在高箱体内流速小，阻力小。The metal filter bag chamber (filter bag area) is used to improve the dust collection rate and service life of the dust collector. The metal filter media in the metal filter bag chamber 3 is made of metal fiber drawing and high-temperature vacuum sintering into one body to form a mesh-like three-dimensional structure. It has the characteristics of high filtration precision, high porosity, high air permeability, high temperature resistance (450℃), corrosion resistance, airflow impact resistance, and mechanical vibration resistance. Due to the high proportion of SiO 2 in converter smoke dust, the uncharged SiO 2 resulting in high dust specific resistance, and large fluctuations in flue gas temperature, combined with the on-site site, the performance of the equipment in use and the current status of converter process control, investment costs, inspection and maintenance must be comprehensively considered Considering factors such as cost, technical difficulty in operation and maintenance, and dust removal efficiency, a high-box metal bag dust collector was innovatively selected as the converter dust removal equipment. The metal bag dust collector with a tall box body has high sealing performance, low air leakage rate and small running resistance compared with a shorter box metal bag type dust collector. The clean air chamber space of the tall box dust collector is 10 times larger than that of the short box dust collector. The flue gas flow rate in the tall box is small and the resistance is small.
喷吹管5与气缸相连，当脉冲阀开启，压缩空气由气缸进入喷吹管5，并通过设置于喷吹管上的导流短管，导流压缩空气高速进入金属滤袋室8的滤袋，进行清灰过程。利用进气箱、出气箱以及人孔门密封性更高，不易造成漏风，且运行阻力小。The blow pipe 5 is connected to the cylinder. When the pulse valve is opened, the compressed air enters the blow pipe 5 from the cylinder, and through the short diversion pipe provided on the blow pipe, the compressed air is directed into the filter bag of the metal filter bag chamber 8 at high speed, and is carried out Cleaning process. The air inlet box, air outlet box and manhole door have higher sealing performance, are less likely to cause air leakage, and have low operating resistance.
工作原理为：镍转炉产生的烟尘由进气箱1进入重力沉降2，含尘气流进入重力沉降2后，由于扩大了流动截面积和受到阻流板阻流使得气流速度大大降低，使较重颗粒在重力作用下缓慢向灰斗6沉降，沉降后的气体进入金属滤袋室，通过金属滤袋室过滤处理，处理后的尘土进入灰斗6，处理后的气体进入高箱体7，利用高箱体7降低烟气在流动过程中的热损失，烟气温度波动小，不易出现结露现象，最大限度降低电收尘器的腐蚀。高箱体的净气室空间大小，其空间较矮箱约大10倍，使得烟气在高箱体内流速均匀、阻力小、收尘效率高，处理完的气体由出气口9排出。The working principle is: the smoke generated by the nickel converter enters the gravity sedimentation 2 from the air inlet box 1. After the dusty airflow enters the gravity sedimentation 2, the airflow speed is greatly reduced due to the expansion of the flow cross-sectional area and the obstruction by the baffle plate, causing the heavier The particles slowly settle to the ash hopper 6 under the action of gravity. The settled gas enters the metal filter bag chamber and is filtered through the metal filter bag chamber. The treated dust enters the ash hopper 6 and the treated gas enters the high box 7. Utilize The high box body 7 reduces the heat loss of the flue gas during the flow process, the temperature fluctuation of the flue gas is small, condensation is less likely to occur, and the corrosion of the electric precipitator is minimized. The space of the clean air chamber of the tall box is about 10 times larger than that of the short box, so that the flue gas flows in the tall box evenly, with low resistance and high dust collection efficiency. The treated gas is discharged from the air outlet 9.
高箱体高温金属滤袋收尘器在高温气体除尘技术，具有耐高温（≤450℃）、除尘精度高（10~20mg/Nm³）、滤袋（材质:金属滤料;简单工艺：纤维拉丝、压制、烧结）寿命长（≥3年）、阻力较小、能连续稳定运行、改造费用较低、运行维护成本低，检修难度小，且具有不受粉尘比电阻制约的优势，其收尘效果能达到＜100mg/Nm3的标准。The high-box high-temperature metal filter bag dust collector is based on high-temperature gas dust removal technology, with high temperature resistance (≤450℃), high dust removal accuracy (10~20mg/Nm³), filter bag (material: metal filter material; simple process: fiber drawing , pressing, sintering), long life (≥3 years), small resistance, continuous and stable operation, low transformation costs, low operation and maintenance costs, easy maintenance, and has the advantage of not being restricted by dust specific resistance. Its dust collection The effect can reach the standard of <100mg/ Nm3 .
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120001137A (en) * | 2025-04-08 | 2025-05-16 | 中冶东方工程技术有限公司 | An online rapid maintenance metal film dust removal device and method for coal gas purification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120001137A (en) * | 2025-04-08 | 2025-05-16 | 中冶东方工程技术有限公司 | An online rapid maintenance metal film dust removal device and method for coal gas purification |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240412 Address after: 737104 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: No.98, Jinchuan Road, Jinchuan District, Jinchang City, Gansu Province 737100 Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 31 Beijing Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province 737100 Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee before: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |