CN204495081U - A kind of reduction furnace head tail gas recycling device - Google Patents
A kind of reduction furnace head tail gas recycling device Download PDFInfo
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- CN204495081U CN204495081U CN201520069810.2U CN201520069810U CN204495081U CN 204495081 U CN204495081 U CN 204495081U CN 201520069810 U CN201520069810 U CN 201520069810U CN 204495081 U CN204495081 U CN 204495081U
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- tail gas
- reduction furnace
- exhaust gas
- recycling device
- power steel
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- 238000004064 recycling Methods 0.000 title claims description 10
- 239000000843 powder Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 65
- 238000011084 recovery Methods 0.000 abstract description 29
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
本实用新型涉及一种还原炉炉头尾气回收利用装置，为了解决金属粉末制造过程中输送带式还原炉尾气利用的问题，包括还原炉炉体、动力钢带，其特征是在所述还原炉炉体中的还原气体出口端部位设有尾气回收盖，尾气回收盖上设有引导管到进粉槽的外部，尾气回收盖的一端与动力钢带配合处设有尾气燃烧门。利用尾气回收盖将尾气进行充分分离，并使氢气上升引至进粉槽进行预加热利用，回收率高，排放少，节能环保。
The utility model relates to a recovery and utilization device for tail gas at the furnace end of a reduction furnace. In order to solve the problem of utilizing the tail gas of a conveyor belt reduction furnace in the metal powder manufacturing process, the utility model includes a reduction furnace body and a power steel belt. The reducing gas outlet end in the furnace body is provided with an exhaust gas recovery cover, and the exhaust gas recovery cover is provided with a guide pipe to the outside of the powder inlet tank, and an exhaust gas combustion door is provided at the joint between one end of the exhaust gas recovery cover and the power steel belt. The exhaust gas recovery cover is used to fully separate the exhaust gas, and the hydrogen gas rises to the powder inlet tank for preheating and utilization, with high recovery rate, low emission, energy saving and environmental protection.
Description
技术领域 technical field
本实用新型涉及还原炉技术，尤其是一种还原炉炉头尾气回收利用装置。 The utility model relates to the technology of a reduction furnace, in particular to a device for recovering and utilizing tail gas from the head of a reduction furnace.
背景技术 Background technique
尾气再利用是现代工业节能环保的常用手段，各种存在可利用尾气工程都可以进行再回收，但回收装置的投入和回收利用之比是主要考虑因素，现有技术这种装置和回收方法多种多样。如专利公开号为CN104190206A，一种含有有机物的尾气回收装置，包括顺序连通的空气净化器、气体冷却器、风机和吸附罐，吸附罐并列设置有多组，吸附罐内设置有引风机，且吸附罐的顶部还设置有气体排放口，此外风机的出风口通过管路与多组吸附罐形成一分多的连接方式，而空气净化器上还设置有冷却水管，该装置适用于化工行业生产过程中产生的有机废尾，回收后进行收集再使用。又如专利公开号为CNCN102661666A的一种以石灰回转窑尾气作为干燥介质对兰炭进行烘干的利用系统，包括除尘器、内有兰炭的立式烘干机，石灰回转窑尾气排放管、立式烘干机、除尘器依次串联，并提出把石灰回转窑尾气引入立式烘干机，与立式烘干机内的兰炭直接接触以对兰炭进行烘干，立式烘干机排出来的气体经除尘器除尘后排空。 Exhaust gas reuse is a common means of energy saving and environmental protection in modern industry. Various existing exhaust gas projects can be recycled, but the ratio of investment in recovery devices to recycling is the main consideration. There are many such devices and recovery methods in the prior art. various. For example, the patent publication number is CN104190206A, a tail gas recovery device containing organic matter, including an air purifier, a gas cooler, a fan and an adsorption tank connected in sequence, multiple groups of adsorption tanks are arranged side by side, and an induced draft fan is arranged inside the adsorption tank, and The top of the adsorption tank is also equipped with a gas discharge port. In addition, the air outlet of the fan is connected with multiple groups of adsorption tanks through pipelines. The air purifier is also equipped with a cooling water pipe. This device is suitable for chemical industry production. The organic waste generated in the process is recycled and collected for reuse. Another example is that the patent publication number is CNCN102661666A, which uses lime rotary kiln tail gas as a drying medium to dry semi-coke. It includes a dust collector, a vertical dryer with blue charcoal, a lime rotary kiln tail gas discharge pipe, The vertical dryer and the dust collector are connected in series in sequence, and it is proposed to introduce the tail gas of the lime rotary kiln into the vertical dryer, and directly contact the semi-coke in the vertical dryer to dry the semi-coke. The vertical dryer The exhausted gas is emptied after dust removal by the dust collector.
发明内容 Contents of the invention
本实用新型的目的是为了解决金属粉末制造过程中输送带式还原炉尾气利用的问题，提供一种结构设计合理，辅加装置少，将尾气直接用于进粉槽预热的还原炉炉头尾气回收利用装置。 The purpose of this utility model is to solve the problem of utilization of the tail gas of the conveyor belt reduction furnace in the metal powder manufacturing process, and to provide a reduction furnace burner with reasonable structure design, few auxiliary devices, and the tail gas is directly used for preheating the powder inlet tank. Exhaust gas recycling device.
本实用新型的上述技术问题主要是通过下述技术方案得以解决的：一种还原炉炉头尾气回收利用装置，包括还原炉炉体、动力钢带，其特征是在所述还原炉炉体中的还原气体出口端部位设有尾气回收盖，尾气回收盖上设有引导管到进粉槽的外部，尾气回收盖的一端与动力钢带配合处设有尾气燃烧门。本方案设计尾气回收盖对输送带还原炉进料口端的尾气进行回收，根据还原气体氨分解气体，即N2+3H2，经炉膛还原后的尾气组成是氮气、氢气、水蒸气，气体密度比氮气:水蒸气:氢气为14:9:1，氢最轻，尾气回收盖提供足够的空间使气体自行分离，氢气上升，向上飘浮到主出口，通过引导管至进粉槽，燃烧后对进粉槽加热，剩下的水气、氮气和部分氢气通过尾气燃烧门点燃排入空气中。 The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a device for recovering tail gas from the head of a reduction furnace, comprising a reduction furnace body and a power steel belt, characterized in that the reduction furnace body The exhaust gas recovery cover is provided at the outlet end of the reducing gas, and the exhaust gas recovery cover is provided with a guide pipe to the outside of the powder inlet tank, and an exhaust gas combustion door is provided at the joint between one end of the exhaust gas recovery cover and the power steel belt. In this scheme, the tail gas recovery cover is designed to recover the tail gas at the feeding port of the reduction furnace on the conveyor belt. According to the reduction gas ammonia decomposition gas, that is, N 2 +3H 2 , the tail gas after furnace reduction is composed of nitrogen, hydrogen, water vapor, and gas density. The ratio of nitrogen:water vapor:hydrogen is 14:9:1, and hydrogen is the lightest. The tail gas recovery cover provides enough space for the gas to separate itself. The powder inlet tank is heated, and the remaining moisture, nitrogen and part of hydrogen are ignited and discharged into the air through the tail gas combustion door.
作为优选，所述的动力钢带的输送方向与还原炉炉体的炉膛内还原气体流动方向相反。经还原反应之后的气体向着进粉槽一端流通，使尾气回收装置与进粉槽近距离设置。 Preferably, the conveying direction of the power steel belt is opposite to the flow direction of the reducing gas in the furnace body of the reduction furnace. The gas after the reduction reaction flows toward one end of the powder feed tank, so that the tail gas recovery device and the powder feed tank are arranged at a close distance.
作为优选，所述的进粉槽设有进入还原炉炉体内的送粉道，送粉道的出口部位设有均料器。均料器为滚筒式结构，对进入炉膛内的金属粉末在钢带上进行摊平均布。 As a preference, the powder feed chute is provided with a powder feeding passage into the furnace body of the reduction furnace, and a homogenizer is provided at the outlet of the powder feeding passage. The homogenizer is a drum-type structure, which spreads the metal powder entering the furnace evenly on the steel belt.
作为优选，所述的尾气回收盖上的引导管上设有打火器。 As a preference, a lighter is provided on the guide pipe on the exhaust gas recovery cover.
作为优选，所述的尾气燃烧门由尾气回收盖盖体边框和动力钢带输送表面构成，尾气燃烧门的开口高度小于等于50mm。尾气燃烧门的高度低于尾气回收盖引导管的高度，使水气、氮气和部分氢气从此出口流出。 Preferably, the exhaust gas combustion door is composed of the frame of the exhaust gas recovery cover and the conveying surface of the power steel belt, and the opening height of the exhaust gas combustion door is less than or equal to 50mm. The height of the exhaust gas combustion door is lower than the height of the guide pipe of the exhaust gas recovery cover, so that water vapor, nitrogen gas and part of hydrogen gas flow out from the outlet.
作为优选，所述的尾气回收盖上的引导管上设有引风装置。对于大型设备可采用本方案，利用引风装置合适的引风力将氢气引出。 As a preference, the guide pipe on the exhaust gas recovery cover is provided with an air induction device. This scheme can be adopted for large-scale equipment, and the hydrogen gas can be drawn out by using the appropriate wind force of the wind-inducing device.
本实用新型的有效效果是：利用尾气回收盖将尾气进行充分分离，并使氢气上升引至进粉槽进行预加热利用，回收率高，排放少，节能、利于环保。 The effective effect of the utility model is: the exhaust gas recovery cover is used to fully separate the exhaust gas, and the hydrogen gas is led to the powder inlet tank for preheating and utilization, with high recovery rate, less emission, energy saving and environmental protection.
附图说明 Description of drawings
图1是本实用新型的一种结构示意图。 Fig. 1 is a kind of structural representation of the utility model.
图中：1. 进粉槽，2. 还原炉炉体，3. 还原粉块，4. 炉膛，5. 动力钢带，6. 均料器，7. 钢带动轮，8. 尾气回收盖。 In the figure: 1. Powder inlet tank, 2. Reduction furnace body, 3. Reduction powder block, 4. Furnace chamber, 5. Power steel belt, 6. Equalizer, 7. Steel driving wheel, 8. Exhaust gas recovery cover.
具体实施方式 Detailed ways
下面通过实施例，并结合附图，对本实用新型的技术方案作进一步具体的说明。 The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
如图1所示，本实施例一种还原炉炉头尾气回收利用装置，在还原炉炉体2、动力钢带5、进粉槽1一端进行设计，动力钢带5在钢带动轮7的驱动下运行，还原气体与动力钢带5运行方向相反，即尾气从进粉槽1一端的炉膛口排出。进粉槽1设有进入还原炉炉体2内的送粉道，在送粉道的出口部位，朝还原气体进口方向一侧设置滚筒式均料器6。 As shown in Fig. 1, the tail gas recycling device of a reduction furnace head in this embodiment is designed at one end of the reduction furnace furnace body 2, the power steel belt 5, and the powder feed tank 1, and the power steel belt 5 is on the side of the steel driving wheel 7 Driven to run, the reducing gas runs in the opposite direction to the power steel belt 5, that is, the tail gas is discharged from the furnace mouth at one end of the powder inlet tank 1. The powder feed trough 1 is provided with a powder feeding passage into the reduction furnace body 2, and a drum-type homogenizer 6 is arranged on the outlet of the powder feeding passage toward the reducing gas inlet direction.
在还原气体出口端部位设置尾气回收盖8，尾气回收盖8上设有双引导管，两支引导管连接到进粉槽1的外部两侧面，尾气回收盖8的高度位于还原炉炉体2上体一半处，由此构成足够的内空，使氮气、水蒸气、氢气充分分离，在尾气回收盖8朝动力钢带5输入的一端设有尾气燃烧门，尾气燃烧门直接由尾气回收盖8的盖体边框和动力钢带5的表面构成，尾气燃烧门的开口高度等于50mm。 A tail gas recovery cover 8 is arranged at the outlet end of the reducing gas. The tail gas recovery cover 8 is provided with double guide pipes, and the two guide pipes are connected to the outer two sides of the powder inlet tank 1. The height of the tail gas recovery cover 8 is located at the reduction furnace body 2 Half of the upper body forms enough inner space to fully separate nitrogen, water vapor and hydrogen. An exhaust gas combustion door is provided at the end of the exhaust gas recovery cover 8 that is input to the power steel belt 5. The exhaust gas combustion door is directly controlled by the exhaust gas recovery cover. The cover body frame of 8 and the surface of power steel belt 5 constitute, and the opening height of exhaust gas combustion door is equal to 50mm.
在尾气回收盖8上的引导管上设置一个电打火器；根据本装置的处理量大小在尾气回收盖8上的引导管上设置引风装置。 An electric lighter is set on the guide tube on the tail gas recovery cover 8; according to the processing capacity of the device, an air induction device is set on the guide tube on the tail gas recovery cover 8.
上述实施例是对本实用新型的说明，不是对本实用新型的限定，任何对本实用新型的简单变换后的结构均属于本实用新型的保护范围。 The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any structure after simple transformation of the utility model belongs to the protection scope of the utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069810.2U CN204495081U (en) | 2015-02-02 | 2015-02-02 | A kind of reduction furnace head tail gas recycling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069810.2U CN204495081U (en) | 2015-02-02 | 2015-02-02 | A kind of reduction furnace head tail gas recycling device |
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| Publication Number | Publication Date |
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| CN204495081U true CN204495081U (en) | 2015-07-22 |
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| CN201520069810.2U Expired - Lifetime CN204495081U (en) | 2015-02-02 | 2015-02-02 | A kind of reduction furnace head tail gas recycling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935778A (en) * | 2016-05-26 | 2016-09-14 | 江苏志远节能炉业设备有限公司 | Environment-friendly steel strip type reduction furnace |
| CN105935530A (en) * | 2016-05-26 | 2016-09-14 | 孙萍 | Steel belted reducing furnace tail gas recovering system |
-
2015
- 2015-02-02 CN CN201520069810.2U patent/CN204495081U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935778A (en) * | 2016-05-26 | 2016-09-14 | 江苏志远节能炉业设备有限公司 | Environment-friendly steel strip type reduction furnace |
| CN105935530A (en) * | 2016-05-26 | 2016-09-14 | 孙萍 | Steel belted reducing furnace tail gas recovering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311612 Zhejiang Province Hangzhou Jiande Daciyan Town Yitong Metal Powder Co., Ltd. Patentee after: Hangzhou Yitong New Materials Co.,Ltd. Address before: 311612 Zhejiang Province Hangzhou Jiande Daciyan Town Yitong Metal Powder Co., Ltd. Patentee before: JIANDE YITONG METAL POWDER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150722 |
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| CX01 | Expiry of patent term |