CN209849460U - Cleaning module suitable for waste acid pipeline of cold rolling acid regeneration unit - Google Patents
Cleaning module suitable for waste acid pipeline of cold rolling acid regeneration unit Download PDFInfo
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- CN209849460U CN209849460U CN201821413104.5U CN201821413104U CN209849460U CN 209849460 U CN209849460 U CN 209849460U CN 201821413104 U CN201821413104 U CN 201821413104U CN 209849460 U CN209849460 U CN 209849460U
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- acid
- pipeline
- regeneration unit
- input pipeline
- cleaning module
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Abstract
The utility model relates to a cold rolling acid regeneration unit pipeline cleaning technical field, concretely relates to cleaning module suitable for cold rolling acid regeneration unit spent acid pipeline. The acid regeneration unit comprises an acid regeneration unit and a roasting furnace, wherein a smoke outlet pipe is arranged on the roasting furnace, the smoke outlet pipe is connected with the acid regeneration unit and then connected to an absorption tower after heat exchange, the output end of the acid regeneration unit is connected with the input end of a pre-concentrator through a waste acid pipeline, the output end of the pre-concentrator is connected with an acid gun through a concentrated acid input pipeline, and a cleaning module comprises an alkali tank, a liquid inlet pipe and a liquid return pipe. The utility model discloses a design two hot lye cleaning circuit, with unit spent acid tube coupling, realize online cleaning spent acid pipeline, improve sour regeneration unit efficiency, improved sour regeneration unit spent acid throughput, improved the iron powder quality.
Description
Technical Field
The utility model relates to a cold rolling acid regeneration unit pipeline cleaning technical field, concretely relates to cleaning module suitable for cold rolling acid regeneration unit spent acid pipeline.
Background
The total design capacity of the existing acid regeneration unit is higher than the running capacity of a matched desiliconization unit, and because the capacity of the desiliconization unit is insufficient, part of the acid regeneration units can only directly treat waste acid which is not subjected to desiliconization and purification, the content of silicon and other impurities in the waste acid is high, the waste acid is very easy to scale on the inner wall of a pipeline after being concentrated by a pre-concentrator, and the flow of an acid gun at the top of a furnace is insufficient after a new pipeline runs for 4 months, so that the spraying amount and the flow of the acid gun at; the furnace top pipeline is blocked to cause insufficient furnace top flow, so that the atomization effect of the acid gun is poor; the ferric oxide powder has high chloride ion content, and the quality of the iron powder is reduced; the unit frequently switches washing, filters, acid gun cleaning and furnace blockage treatment, so that the unit productivity and the unit stable operation are affected, and meanwhile, the unit is frequently started and stopped, and energy is seriously wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve current problem and provide a cleaning module suitable for cold rolling acid regeneration unit spent acid pipeline, its advantage that gains is through designing two hot alkali lye cleaning circuit, with unit spent acid tube coupling, realizes online cleaning spent acid pipeline, improves acid regeneration unit efficiency, has improved acid regeneration unit spent acid throughput, has improved the iron powder quality.
The technical scheme of the utility model as follows:
a cleaning module suitable for a waste acid pipeline of a cold rolling acid regeneration unit comprises the acid regeneration unit and a roasting furnace, wherein a smoke outlet pipe is arranged on the roasting furnace, the smoke outlet pipe is connected with the acid regeneration unit for heat exchange and then is connected to an absorption tower, the output end of the acid regeneration unit is connected with the input end of a pre-concentrator through a waste acid pipeline, the output end of the pre-concentrator is connected with an acid gun through a concentrated acid input pipeline, a tee joint I is arranged on the concentrated acid input pipeline at the near end of the pre-concentrator, the concentrated acid input pipeline is divided into an input pipeline I and an input pipeline II through the tee joint I, the input pipeline I is connected with the acid gun, and the input pipeline II is connected; the acid gun is arranged at the top of the roasting furnace, and is characterized in that: the cleaning module comprises an alkali tank, a liquid inlet pipe and a liquid return pipe; the output end of the alkali tank is connected with the liquid inlet pipe, and the input end of the alkali tank is connected with the liquid return pipe; the liquid inlet pipe is connected to the concentrated acid input pipeline; the liquid return pipe is divided into a liquid return pipe I and a liquid return pipe II through a tee joint II, the other end of the liquid return pipe I is connected with an input pipeline II at the near end of the acid regeneration unit, and the other end of the liquid return pipe II is connected with an input pipeline I at the near end of the acid gun.
Preferably, the input pipeline I is provided with a roasting furnace feeding pump, the input pipeline II is provided with a pre-concentrator circulating pump, and the smoke outlet pipe is provided with an absorption tower feeding pump.
Preferably, the input pipeline I is also provided with a furnace top filter.
Preferably, both sides of the connection position of the liquid inlet pipe on the concentrated acid input pipeline are respectively provided with a control valve; two sides of the joint of the liquid return pipe I on the input pipeline II are respectively provided with a control valve; and control valves are respectively arranged on two sides of the joint of the liquid return pipe II on the input pipeline I.
Preferably, the alkali tank, the liquid inlet pipe, the input pipeline I, the roasting furnace feed pump, the furnace top filter, the input pipeline I, the liquid return pipe II and the alkali tank form a cleaning loop I.
Preferably, the alkali tank, the liquid inlet pipe, the input pipeline II, the preconcentrator circulating pump, the input pipeline II, the liquid return pipe I and the alkali tank form a cleaning loop II.
Preferably, a heating device is arranged in the alkali tank to form a hot alkali tank.
The utility model has the advantages that:
the utility model discloses a design effect is obvious, and the design is novel, and convenient to use is swift safety. The scale on the inner wall of the PVDF and steel lining rubber pipeline is thoroughly washed white, the service life of the pipeline is prolonged, the pipeline blockage and equipment blockage caused by pipeline scale are relieved, the atomization effect of an acid gun is greatly improved, the content of ferric oxide powder chloride ions is reduced, and the quality of the ferric oxide powder is improved; the increase of spare part cost caused by pipeline replacement is avoided through alkaline washing, the capacity is improved, and good economic benefit is obtained. The quality of the ferric oxide powder is obviously improved, the number of times of furnace blockage is obviously reduced, the expected effect is achieved, and the quality index and the economic benefit are obviously improved.
Furthermore, the utility model discloses the method principle is reliable, and the step is simple, has very extensive application prospect.
Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a block diagram of the flow of the present invention.
The method comprises the following steps of 1-acid regeneration unit, 2-roasting furnace, 3-smoke outlet pipe, 4-absorption tower, 5-preconcentrator, 6-waste acid pipeline, 7-concentrated acid input pipeline, 8-acid gun, 9-tee I, 10-input pipeline I, 11-input pipeline II, 12-alkali tank, 13-liquid inlet pipe, 14-liquid return pipe, 15-tee II, 16-liquid return pipe I, 17-liquid return pipe II, 18-roasting furnace feed pump, 19-preconcentrator circulating pump, 20-absorption tower feed pump, 21-furnace top filter, 22-control valve and 23-heating device.
Detailed Description
A cleaning module suitable for a waste acid pipeline of a cold rolling acid regeneration unit comprises an acid regeneration unit 1 and a roasting furnace 2, wherein a smoke outlet pipe 3 is arranged on the roasting furnace 2, the smoke outlet pipe 3 is connected with the acid regeneration unit 1 for heat exchange and then is connected to an absorption tower 4, the output end of the acid regeneration unit 1 is connected with the input end of a pre-concentrator 5 through a waste acid pipeline 6, the output end of the pre-concentrator 5 is connected with an acid gun 8 through a concentrated acid input pipeline 7, a tee joint I9 is arranged on the concentrated acid input pipeline 7 at the near end of the pre-concentrator 5, the concentrated acid input pipeline 7 is divided into an input pipeline I10 and an input pipeline II 11 through the tee joint I9, the input pipeline I10 is connected with the acid gun 8, and the input pipeline II 11; the acid gun 8 is arranged on the top of the roasting furnace 2. The cleaning module comprises an alkali tank 12, a liquid inlet pipe 13 and a liquid return pipe 14; the output end of the alkali tank 12 is connected with a liquid inlet pipe 13, and the input end of the alkali tank 12 is connected with a liquid return pipe 14; the liquid inlet pipe 13 is connected to the concentrated acid input pipeline 7; the liquid return pipe 14 is divided into a liquid return pipe I16 and a liquid return pipe II 17 through a tee joint II 15, the other end of the liquid return pipe I16 is connected with an input pipeline II 11 at the near end of the acid regeneration unit 1, and the other end of the liquid return pipe II 17 is connected with an input pipeline I10 at the near end of the acid gun 8.
The input pipeline I10 is provided with a roasting furnace feeding pump 18, the input pipeline II 11 is provided with a pre-concentrator circulating pump 19, and the smoke outlet pipe 3 is provided with an absorption tower feeding pump 20.
The input pipeline I10 is also provided with a furnace top filter 21.
Two sides of the connection part of the liquid inlet pipe 13 on the concentrated acid input pipeline 7 are respectively provided with a control valve 22; two sides of the joint of the liquid return pipe I16 on the input pipeline II 11 are respectively provided with a control valve 22; two sides of the connection part of the liquid return pipe II on the input pipeline I10 are respectively provided with a control valve 22.
The alkali tank 12, the liquid inlet pipe 13, the input pipeline I10, the roasting furnace feed pump 18, the furnace top filter 21, the input pipeline I10, the liquid return pipe II 17 and the alkali tank 12 form a cleaning loop I.
The alkali tank 12, the liquid inlet pipe 13, the input pipeline II 11, the pre-concentrator circulating pump 19, the input pipeline II 11, the liquid return pipe I16 and the alkali tank 12 form a cleaning loop II.
A heating device 23 is arranged in the alkali tank 12 to form a hot alkali tank.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A cleaning module suitable for a waste acid pipeline of a cold rolling acid regeneration unit comprises the acid regeneration unit and a roasting furnace, wherein a smoke outlet pipe is arranged on the roasting furnace, the smoke outlet pipe is connected with the acid regeneration unit for heat exchange and then is connected to an absorption tower, the output end of the acid regeneration unit is connected with the input end of a pre-concentrator through a waste acid pipeline, the output end of the pre-concentrator is connected with an acid gun through a concentrated acid input pipeline, a tee joint I is arranged on the concentrated acid input pipeline at the near end of the pre-concentrator, the concentrated acid input pipeline is divided into an input pipeline I and an input pipeline II through the tee joint I, the input pipeline I is connected with the acid gun, and the input pipeline II is connected; the acid gun is arranged at the top of the roasting furnace, and is characterized in that: the cleaning module comprises an alkali tank, a liquid inlet pipe and a liquid return pipe; the output end of the alkali tank is connected with the liquid inlet pipe, and the input end of the alkali tank is connected with the liquid return pipe; the liquid inlet pipe is connected to the concentrated acid input pipeline; the liquid return pipe is divided into a liquid return pipe I and a liquid return pipe II through a tee joint II, the other end of the liquid return pipe I is connected with an input pipeline II at the near end of the acid regeneration unit, and the other end of the liquid return pipe II is connected with an input pipeline I at the near end of the acid gun.
2. The cleaning module for the waste acid pipeline of the cold rolling acid regeneration unit according to claim 1, wherein the cleaning module comprises: the feeding pump of the roasting furnace is arranged on the input pipeline I, the circulating pump of the pre-concentrator is arranged on the input pipeline II, and the feeding pump of the absorption tower is arranged on the smoke outlet pipe.
3. The cleaning module for the waste acid pipeline of the cold rolling acid regeneration unit according to claim 1, wherein the cleaning module comprises: and the input pipeline I is also provided with a furnace top filter.
4. The cleaning module for the waste acid pipeline of the cold rolling acid regeneration unit according to claim 1, wherein the cleaning module comprises: control valves are respectively arranged on two sides of the connection position of the liquid inlet pipe on the concentrated acid input pipeline; two sides of the joint of the liquid return pipe I on the input pipeline II are respectively provided with a control valve; and control valves are respectively arranged on two sides of the joint of the liquid return pipe II on the input pipeline I.
5. A cleaning module suitable for a cold rolling acid regenerator spent acid pipeline according to claim 1 or claim 2 or claim 3 or claim 4, wherein: the alkali tank, the liquid inlet pipe, the input pipeline I, the feeding pump of the roasting furnace, the furnace top filter, the input pipeline I, the liquid return pipe II and the alkali tank form a cleaning loop I.
6. The cleaning module for the waste acid pipeline of the cold rolling acid regeneration unit according to claim 5, wherein the cleaning module comprises: the alkali tank, the liquid inlet pipe, the input pipeline II, the pre-concentrator circulating pump, the input pipeline II, the liquid return pipe I and the alkali tank form a cleaning loop II.
7. The cleaning module for the waste acid pipeline of the cold rolling acid regeneration unit according to claim 6, wherein the cleaning module comprises: and a heating device is arranged in the alkali tank to form a hot alkali tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413104.5U CN209849460U (en) | 2018-08-30 | 2018-08-30 | Cleaning module suitable for waste acid pipeline of cold rolling acid regeneration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413104.5U CN209849460U (en) | 2018-08-30 | 2018-08-30 | Cleaning module suitable for waste acid pipeline of cold rolling acid regeneration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209849460U true CN209849460U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821413104.5U Expired - Fee Related CN209849460U (en) | 2018-08-30 | 2018-08-30 | Cleaning module suitable for waste acid pipeline of cold rolling acid regeneration unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN209849460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215377A (en) * | 2022-06-08 | 2022-10-21 | 日照宝华新材料有限公司 | Production system and production process for producing iron oxide powder by self-circulation of waste acid |
-
2018
- 2018-08-30 CN CN201821413104.5U patent/CN209849460U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215377A (en) * | 2022-06-08 | 2022-10-21 | 日照宝华新材料有限公司 | Production system and production process for producing iron oxide powder by self-circulation of waste acid |
| CN115215377B (en) * | 2022-06-08 | 2024-02-06 | 日照宝华新材料有限公司 | Production system and production process for producing ferric oxide powder by self-circulation of waste acid |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20200830 |