CN204417608U - A kind of stainless steel annealing pickling line pickling circulating line structure - Google Patents
A kind of stainless steel annealing pickling line pickling circulating line structure Download PDFInfo
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- CN204417608U CN204417608U CN201420829634.3U CN201420829634U CN204417608U CN 204417608 U CN204417608 U CN 204417608U CN 201420829634 U CN201420829634 U CN 201420829634U CN 204417608 U CN204417608 U CN 204417608U
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- pickling
- acid
- tank
- mixing device
- pickling tank
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- 238000005554 pickling Methods 0.000 title claims abstract description 61
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 15
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 238000000137 annealing Methods 0.000 title claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
本实用新型公开了一种不锈钢退火酸洗线酸洗循环管道结构，其包括酸洗槽、酸液储罐，酸洗槽与酸液储罐之间设有连接管道，所述连接管道为循环管道，所述连接管道一端连接酸液储罐的出口，所述连接管道另一端连接酸洗槽的酸液入口，所述连接管道中设有一个酸液混合装置，所述酸洗槽上还设有一个回流管，回流管与酸液混合装置相连，所述酸液混合装置为内置螺旋管的静态混合管，酸洗槽的酸液入口为两个以上，均匀分布在酸洗槽的四周；本实用新型利用回流管将酸洗槽中的酸液回流至酸液混合装置中与新鲜加入的酸液进行混合，同时将酸洗槽的酸液入口均匀分布设置，保持酸洗槽酸液浓度均衡，酸液混合采用无动力的混合装置，使系统更加稳定可靠。
The utility model discloses a pickling circulation pipeline structure of a stainless steel annealing pickling line, which comprises a pickling tank and an acid storage tank. A connecting pipeline is arranged between the pickling tank and the acid storage tank, and the connecting pipeline is a circulation pipeline, one end of the connecting pipeline is connected to the outlet of the acid storage tank, the other end of the connecting pipeline is connected to the acid solution inlet of the pickling tank, an acid mixing device is arranged in the connecting pipeline, and there is also an acid mixing device on the pickling tank There is a return pipe, which is connected with the acid liquid mixing device. The acid liquid mixing device is a static mixing pipe with a built-in spiral pipe. There are more than two acid liquid inlets in the pickling tank, which are evenly distributed around the pickling tank. The utility model uses the return pipe to return the acid solution in the pickling tank to the acid solution mixing device to mix with the freshly added acid solution, and at the same time, the acid solution inlets of the pickling tank are evenly distributed to keep the acid solution in the pickling tank The concentration is balanced, and the acid liquid is mixed with a non-powered mixing device, which makes the system more stable and reliable.
Description
技术领域 technical field
本实用新型涉及不锈钢生产技术领域，尤其涉及一种不锈钢退火酸洗线酸洗循环管道结构。 The utility model relates to the technical field of stainless steel production, in particular to a pickling circulation pipeline structure of a stainless steel annealing pickling line.
背景技术 Background technique
不锈钢退火酸洗生产线在连续生产200/300/400系列不锈钢带时，在酸洗段一般都是采用硫酸和混酸工艺经多次酸洗，以保证不锈钢带表面的氧化层能够清除干净。在酸洗过程中，会产生酸液挥发物和废气组成的酸雾，酸雾需要专门收集处理，因此，酸洗过程中酸液浓度及酸液容量都在一直减少，为了保证连续生产的稳定性，需要不断的从酸液储罐中往酸洗槽中补充酸液。酸液储罐是利用管道向酸洗槽中补充配置好的酸液，由于酸液储罐中酸的浓度高，补充酸液时酸洗槽酸液进口处的浓度容易偏高，导致酸洗槽中酸液浓度不均衡，比较不好控制不锈钢带的酸洗效果。 When the stainless steel annealing and pickling production line continuously produces 200/300/400 series stainless steel strips, the pickling section generally adopts sulfuric acid and mixed acid process for multiple pickling to ensure that the oxide layer on the surface of the stainless steel strip can be removed. During the pickling process, acid mist composed of acid volatiles and exhaust gas will be produced. The acid mist needs to be collected and treated specially. Therefore, the acid concentration and acid volume are constantly decreasing during the pickling process. In order to ensure the stability of continuous production It is necessary to continuously replenish acid solution from the acid solution storage tank to the pickling tank. The acid liquid storage tank uses pipelines to replenish the prepared acid liquid into the pickling tank. Due to the high concentration of acid in the acid liquid storage tank, the concentration at the acid liquid inlet of the pickling tank is easy to be high when replenishing acid liquid, resulting in pickling The acid concentration in the tank is unbalanced, and it is difficult to control the pickling effect of the stainless steel strip.
发明内容 Contents of the invention
为克服现有技术的不足，本实用新型提供了一种酸液浓度均衡、酸洗效果好的不锈钢退火酸洗线酸洗循环管道结构。 In order to overcome the deficiencies of the prior art, the utility model provides a pickling circulation pipeline structure of a stainless steel annealing pickling line with balanced acid concentration and good pickling effect.
本实用新型为达到上述技术目的所采用的技术方案是：一种不锈钢退火酸洗线酸洗循环管道结构，包括酸洗槽、酸液储罐，所述酸洗槽与酸液储罐之间设有连接管道，所述连接管道为循环管道，所述循环的连接管道一端连接酸液储罐的出口，所述循环的连接管道另一端连接酸洗槽的酸液入口，所述循环的连接管道中设有一个酸液混合装置，所述酸洗槽上还设有一个回流管，所述回流管与酸液混合装置相连，所述酸液混合装置为内置螺旋管的静态混合管。 The technical solution adopted by the utility model to achieve the above-mentioned technical purpose is: a stainless steel annealing and pickling line pickling circulation pipeline structure, including a pickling tank and an acid storage tank. A connection pipe is provided, and the connection pipe is a circulation pipe, one end of the connection pipe of the circulation is connected to the outlet of the acid storage tank, the other end of the connection pipe of the circulation is connected to the acid liquid inlet of the pickling tank, and the connection of the circulation An acid liquid mixing device is arranged in the pipeline, and a return pipe is also provided on the pickling tank, and the return pipe is connected with the acid liquid mixing device, and the acid liquid mixing device is a static mixing pipe with a built-in spiral pipe.
所述酸洗槽的酸液入口为两个以上，均匀分布在酸洗槽的四周。 There are more than two acid liquid inlets in the pickling tank, which are evenly distributed around the pickling tank.
所述酸液混合装置的出口还设有酸液驱动的搅拌叶轮。 The outlet of the acid liquid mixing device is also provided with an acid liquid driven stirring impeller.
本实用新型的有益效果是:采用上述结构后，通过在酸洗槽的加酸管道中增加一个酸液混合装置，利用回流管将酸洗槽中的酸液回流至酸液混合装置中与新鲜加入的酸液进行混合，同时将酸洗槽的酸液入口均匀分布设置，避免加入的酸 液浓度偏差过大，避免局部酸液浓度过高，尽量使酸洗槽中的酸液的浓度保持均衡；另外，酸液混合采用无动力的混合装置，使系统更加稳定可靠，使用寿命更长。 The beneficial effects of the utility model are: after adopting the above-mentioned structure, by adding an acid liquid mixing device in the acid adding pipeline of the pickling tank, the acid liquid in the pickling tank is returned to the acid liquid mixing device by the return pipe to be mixed with fresh The added acid solution is mixed, and at the same time, the acid solution inlet of the pickling tank is evenly distributed to avoid excessive concentration deviation of the added acid solution, avoid excessive local acid solution concentration, and keep the acid solution concentration in the pickling tank as much as possible. In addition, the acid liquid mixing adopts a non-powered mixing device, which makes the system more stable and reliable, and has a longer service life.
附图说明 Description of drawings
下面结合附图和实施例对本实用新型作进一步说明。其中： Below in conjunction with accompanying drawing and embodiment the utility model is further described. in:
图1是本实用新型不锈钢退火酸洗线酸洗循环管道结构的结构示意图。 Fig. 1 is a structural schematic diagram of the pickling circulation pipeline structure of the stainless steel annealing pickling line of the present invention.
具体实施方式 Detailed ways
为详细说明本实用新型的技术内容、构造特征、所实现目的及效果，以下结合实施方式并配合附图详细说明。 In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following describes in detail in combination with the embodiments and accompanying drawings.
请参阅图1所示，本实用新型不锈钢退火酸洗线酸洗循环管道结构包括酸洗槽1、酸液储罐2，所述酸洗槽1与酸液储罐2之间设有连接管道3，所述连接管道3为循环管道，所述循环的连接管道3一端连接酸液储罐2的出口，所述循环的连接管道3另一端连接酸洗槽1的酸液入口11，所述循环的连接管道3中设有一个酸液混合装置4，所述酸洗槽1上还设有一个回流管12，所述回流管12与酸液混合装置4相连，所述酸液混合装置4为内置螺旋管的静态混合管。 Please refer to Fig. 1, the pickling circulation pipeline structure of the stainless steel annealing and pickling line of the utility model includes a pickling tank 1 and an acid storage tank 2, and a connecting pipeline is arranged between the pickling tank 1 and the acid storage tank 2 3. The connecting pipe 3 is a circulating pipe, one end of the circulating connecting pipe 3 is connected to the outlet of the acid storage tank 2, and the other end of the circulating connecting pipe 3 is connected to the acid liquid inlet 11 of the pickling tank 1, the An acid liquid mixing device 4 is arranged in the circulating connection pipe 3, and a return pipe 12 is also provided on the pickling tank 1, and the return pipe 12 is connected with the acid liquid mixing device 4, and the acid liquid mixing device 4 It is a static mixing tube with a built-in spiral tube.
所述酸洗槽1的酸液入口11为两个以上，均匀分布在酸洗槽1的四周。 There are more than two acid liquid inlets 11 in the pickling tank 1 , which are evenly distributed around the pickling tank 1 .
所述酸液混合装置4的出口还设有酸液驱动的搅拌叶轮5。 The outlet of the acid liquid mixing device 4 is also provided with an acid liquid driven stirring impeller 5 .
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。 The above descriptions are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. All equivalent structural transformations made by using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related technical fields. , are all included in the scope of patent protection of the utility model in the same way.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829634.3U CN204417608U (en) | 2014-12-24 | 2014-12-24 | A kind of stainless steel annealing pickling line pickling circulating line structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829634.3U CN204417608U (en) | 2014-12-24 | 2014-12-24 | A kind of stainless steel annealing pickling line pickling circulating line structure |
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| Publication Number | Publication Date |
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| CN204417608U true CN204417608U (en) | 2015-06-24 |
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| CN201420829634.3U Expired - Lifetime CN204417608U (en) | 2014-12-24 | 2014-12-24 | A kind of stainless steel annealing pickling line pickling circulating line structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976401A (en) * | 2019-12-30 | 2020-04-10 | 长飞光纤光缆(天津)有限公司 | A pretreatment SCR pickling tank heating equipment |
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2014
- 2014-12-24 CN CN201420829634.3U patent/CN204417608U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976401A (en) * | 2019-12-30 | 2020-04-10 | 长飞光纤光缆(天津)有限公司 | A pretreatment SCR pickling tank heating equipment |
| CN110976401B (en) * | 2019-12-30 | 2025-01-14 | 长飞光纤光缆(天津)有限公司 | A pre-treatment SCR pickling tank heating device |
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Granted publication date: 20150624 |
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