CN104259156A - Automatic cleaning system and method of feeding pipeline of roaster - Google Patents
Automatic cleaning system and method of feeding pipeline of roaster Download PDFInfo
- Publication number
- CN104259156A CN104259156A CN201410523348.9A CN201410523348A CN104259156A CN 104259156 A CN104259156 A CN 104259156A CN 201410523348 A CN201410523348 A CN 201410523348A CN 104259156 A CN104259156 A CN 104259156A
- Authority
- CN
- China
- Prior art keywords
- roaster
- desalted water
- supply lines
- automatic cleaning
- cleaning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
Abstract
The invention relates to an automatic cleaning system and method of a feeding pipeline of a roaster. The automatic cleaning method is characterized in that a desalted water pipeline is additionally arranged on an existing feeding pipeline of a roaster, a circulation path of desalted water is formed by controlling opening and closing of corresponding valves, and therefore automatic cleaning of the feeding pipeline of the roaster is achieved. The automatic cleaning system and method of the feeding pipeline of the roaster have the advantages that when the system is shut down due to accidents, the automatic cleaning system can be started up instantly, so that the feeding pipeline of the roaster can be well maintained. In addition, the cleaning effect of the pipeline can be optimized by arranging a desalted water heating device. While solving the problems, the automatic cleaning procedures greatly reduce operations of the staff in the cleaning process, reduce pipeline equipment damage and save maintenance cost.
Description
Technical field
The present invention relates to steel rolling acid pickle regenerative system technical field, be specifically related to roaster supply lines automatic cleaning system and cleaning method.
Background technology
The acid pickle that cold rolling mill pickled steel strip produces, has extremely strong corrosivity.If do not processed, serious pollution will be caused to environment, simultaneously due to the discharge that hydrochloric acid is a large amount of, also result in the raising of pickling cost.Process major part now for pickle liquor adopts spray roasting technique, and roaster system is one of kernel subsystems in spray roasting technique.
In spray roasting technique, first spent acid is pumped in Venturi preconcentrator by spent acid, aditus laryngis place and same stream to high-temperature roasting gas fully mix, a part of water in acid pickle and hydrochloric acid evaporation form concentrating waste acid.There is chemical reaction by being sprayed onto in roaster with certain pressure by furnace roof acid rifle through concentrated spent acid in roaster charging pump, produces free HCl and brown iron oxide.
But due to the easy crystallization of concentrating waste acid, easily deposit wall built-up; as run into the emergency situations such as the overall shutdown of acid purification system occur time; along with medium temperature in pipeline reduces; often there is the crystalline polamer of concentrating waste acid in roaster supply lines; and once there is crystallization; this section of pipeline, by extremely difficult dredging, often causes conduit failure and needs to change.Even if operating personnel are with prestissimo this roaster supply lines emptying, still residual fraction concentrating waste acid crystal in pipeline, long-term accumulated needs finally causing line clogging to change.
Therefore be necessary to design a kind of roaster supply lines automatic cleaning system and cleaning method, to overcome the problems referred to above.
Summary of the invention
The object of the invention is to the defect overcoming prior art, a kind of roaster supply lines automatic cleaning system and cleaning method are provided, guarantee in very first time detergent line.
The present invention is achieved in that
The invention provides a kind of roaster supply lines automatic cleaning system, comprise roaster supply lines and desalted water pipeline, described roaster supply lines comprises the main line and some feed branch roads that are provided with roaster charging pump, and described desalted water pipeline comprises the main line and some desalted water branch roads that are provided with desalted water supercharging device and desalted water heater; Every bar feed branch road is provided with a concentrating waste acid inlet valve and a roaster inlet valve, and every bar feed branch road is connected with a desalted water branch road between concentrating waste acid inlet valve with roaster inlet valve, and every bar desalted water branch road is provided with a desalted water inlet valve; Roaster supply lines main line is connected with drain line, and described drain line is provided with tapping valve.
Further, described drain line is positioned at described roaster charging pump near the side of feed branch road.
Further, described drain line is positioned at the side of described roaster charging pump away from feed branch road, and described roaster charging pump comprises the sour pump and motor that impeller of pump can reverse.
Further, described desalted water heater is graphite heat exchanger, and described graphite heat exchanger is by high-temperature steam heat exchange.
Further, described desalted water heater is electric heater.
Further, described desalted water pipeline main line is also provided with a desalted water main valve.
Further, described drain line passes to melt pit.
The present invention also provides a kind of method using this roaster supply lines automatic cleaning system to clean roaster supply lines, comprises the following steps:
S1: during acid purification system disastershutdown, system closes roaster inlet valve automatically, opens concentrating waste acid inlet valve, desalted water inlet valve, tapping valve;
S2: start desalted water supercharging device and desalted water heater, desalted water enters desalted water pipeline and heated;
S3: the desalted water after heating successively flows through the main line of the main line of desalted water pipeline, each desalted water branch road, each feed branch road, roaster supply lines, discharges finally by drain line;
S4: cleaning procedure completes, by all valve closings, desalted water supercharging device is shut down.
The present invention has following beneficial effect: when each systematic failures stops, this roaster supply lines automatic cleaning system starts, automatically the operation of cleaning roaster supply lines is carried out, roaster supply lines can be made to reach good maintenance effects, and make pipeline-cleaning effect reach optimization by arranging desalted water heater.While process problem, automatic cleaning procedure greatly reduces the operation of personnel in cleaning process, reduces pipeline equipment and damages, save maintenance cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the roaster supply lines automatic cleaning system that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
As Fig. 1, the embodiment of the present invention provides a kind of roaster supply lines automatic cleaning system, comprise roaster supply lines 1 and desalted water pipeline 2, described roaster supply lines 1 comprises the main line and some feed branch roads that are provided with roaster charging pump 10, and described desalted water pipeline 2 comprises the main line and some desalted water branch roads that are provided with desalted water supercharging device 3 and desalted water heater 4; Every bar feed branch road is provided with concentrating waste acid inlet valve 6 and a roaster inlet valve 7, every bar feed branch road is connected with a desalted water branch road between concentrating waste acid inlet valve 6 with roaster inlet valve 7, and every bar desalted water branch road is provided with a desalted water inlet valve 5; Roaster supply lines 1 main line is connected with drain line, and described drain line is provided with tapping valve 8.When roaster inlet valve 7 close, other valves all open time, every bar feed branch road and the desalted water branch road series connection be attached thereto, forms the passage branches that desalted water circulates; After all passage branches parallel connections, its entrance is connected with the main line of desalted water pipeline 2, and its outlet is connected with the main line of roaster supply lines 1, forms the circulation path of desalted water.
In the present embodiment, when the impeller of pump of described roaster charging pump 10 can not reverse, described drain line is positioned at the side of roaster charging pump 10 near feed branch road.When the sour pump that described roaster charging pump 10 can reverse for impeller of pump, described drain line is positioned at the side of described roaster charging pump 10 away from feed branch road.When taking rear a kind of structure, roaster charging pump together can be cleaned.
In the present embodiment, generally, the scene, acid regeneration station of steel rolling acid pickle regenerative system can provide high-temperature steam, and at this moment, described desalted water heater 4 is preferably graphite heat exchanger, and described graphite heat exchanger is by high-temperature steam heat exchange.When there is larger difficulty for providing steam, the modes such as electric heater can be adopted to heat desalted water.The reaction speed of passing through desalted water and the crystal heated is faster, can obtain better cleaning performance.
In the present embodiment, further, described desalted water pipeline 2 main line is also provided with a desalted water main valve 9, better can controls the circulation of desalted water in desalted water pipeline 2.
In the present embodiment, described drain line passes to melt pit.
The method of the roaster supply lines automatic cleaning system cleaning roaster supply lines using the present embodiment to provide, comprises the following steps:
S1: during acid purification system disastershutdown, system closes roaster inlet valve 7 automatically, opens concentrating waste acid inlet valve 6, desalted water inlet valve 5, tapping valve 8;
S2: start desalted water supercharging device 3 and desalted water heater 4, desalted water enters desalted water pipeline 2 and heated;
S3: the desalted water after heating successively flows through the main line of the main line of desalted water pipeline 2, each desalted water branch road, each feed branch road, roaster supply lines 1, discharges finally by drain line;
S4: cleaning procedure completes, by all valve closings, desalted water supercharging device 3 is shut down.
During actual job, when running into acid purification system disastershutdown, remote auto control end immediate response, start relative program and close and open above-mentioned respective valves to form the circulation path of desalted water, and control desalted water supercharging device 3 and desalted water heater 4 pairs of desalted waters process, make desalted water can clean roaster supply lines preferably; When cleaning completes, remote auto control end closes all valves, realizes the controllability of scavenging period.Full process automatization controls, and can carry out aforesaid operations, effectively prevent the crystalline deposit of concentrating waste acid in roaster supply lines, reach the effect safeguarding roaster supply lines preferably in the very first time; Greatly reduce the operation of personnel in cleaning process simultaneously, reduce pipeline equipment and damage, save maintenance cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a roaster supply lines automatic cleaning system, comprise roaster supply lines (1) and desalted water pipeline (2), described roaster supply lines (1) comprises the main line and some feed branch roads that are provided with roaster charging pump (10), and described desalted water pipeline (2) comprises the main line and some desalted water branch roads that are provided with desalted water supercharging device (3) and desalted water heater (4); Every bar feed branch road is provided with a concentrating waste acid inlet valve (6) and a roaster inlet valve (7), every bar feed branch road is connected with a desalted water branch road between concentrating waste acid inlet valve (6) with roaster inlet valve (7), and every bar desalted water branch road is provided with a desalted water inlet valve (5); Roaster supply lines (1) main line is connected with drain line, and described drain line is provided with tapping valve (8).
2. roaster supply lines automatic cleaning system according to claim 1, is characterized in that: described drain line is positioned at the side of described roaster charging pump (10) near feed branch road.
3. roaster supply lines automatic cleaning system according to claim 1, it is characterized in that: described drain line is positioned at the side of described roaster charging pump (10) away from feed branch road, described roaster charging pump (10) comprises the sour pump and motor that impeller of pump can reverse.
4. roaster supply lines automatic cleaning system according to claim 1, is characterized in that: described desalted water heater (4) is graphite heat exchanger, and described graphite heat exchanger is by high-temperature steam heat exchange.
5. roaster supply lines automatic cleaning system according to claim 1, is characterized in that: described desalted water heater (4) is electric heater.
6. roaster supply lines automatic cleaning system according to claim 1, is characterized in that: described desalted water pipeline (2) main line is also provided with a desalted water main valve (9).
7. roaster supply lines automatic cleaning system according to claim 1, is characterized in that: described drain line passes to melt pit.
8. use the method for roaster supply lines automatic cleaning system as claimed in claim 1 cleaning roaster supply lines, comprise the following steps:
S1: during acid purification system disastershutdown, system closes roaster inlet valve (7) automatically, opens concentrating waste acid inlet valve (6), desalted water inlet valve (5), tapping valve (8);
S2: start desalted water supercharging device (3) and desalted water heater (4), desalted water enters desalted water pipeline (2) and heated;
S3: the desalted water after heating successively flows through the main line of the main line of desalted water pipeline (2), each desalted water branch road, each feed branch road, roaster supply lines (1), discharges finally by drain line;
S4: cleaning procedure completes, by all valve closings, desalted water supercharging device (3) is shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523348.9A CN104259156B (en) | 2014-10-08 | 2014-10-08 | Stoving oven supply lines automatic cleaning system and purging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523348.9A CN104259156B (en) | 2014-10-08 | 2014-10-08 | Stoving oven supply lines automatic cleaning system and purging method |
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| Publication Number | Publication Date |
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| CN104259156A true CN104259156A (en) | 2015-01-07 |
| CN104259156B CN104259156B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410523348.9A Active CN104259156B (en) | 2014-10-08 | 2014-10-08 | Stoving oven supply lines automatic cleaning system and purging method |
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| CN (1) | CN104259156B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310755A (en) * | 2016-08-15 | 2017-01-11 | 中冶南方工程技术有限公司 | Acid regeneration system, cleaning system, acid regeneration method of acid regeneration system and cleaning method of cleaning system |
| CN113042481A (en) * | 2021-03-03 | 2021-06-29 | 广西柳州钢铁集团有限公司 | Method for on-line cleaning regular packing of absorption tower by hydrochloric acid regeneration system |
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| CN1851320A (en) * | 2006-04-28 | 2006-10-25 | 中冶南方工程技术有限公司 | Hydrochloride waste regenerating process for spray roasting |
| CN101109088A (en) * | 2007-08-14 | 2008-01-23 | 邯郸钢铁股份有限公司 | Technique for cleaning acid dirty of acid reactivating machine group inner loop type pipeline |
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| KR20130005388A (en) * | 2011-07-06 | 2013-01-16 | 나유집 | Cleaning method and cleaning apparatus |
| CN103191594A (en) * | 2013-04-03 | 2013-07-10 | 马钢(集团)控股有限公司 | Acid scale removing device of filter press and acid scale removing process of filter press |
| CN103663375A (en) * | 2012-08-30 | 2014-03-26 | 宝山钢铁股份有限公司 | Anti-dismantling online dredge device and dredge method of preconcentrator nozzle |
| CN204182641U (en) * | 2014-10-08 | 2015-03-04 | 中冶南方工程技术有限公司 | Roaster supply lines automatic cleaning system |
-
2014
- 2014-10-08 CN CN201410523348.9A patent/CN104259156B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851320A (en) * | 2006-04-28 | 2006-10-25 | 中冶南方工程技术有限公司 | Hydrochloride waste regenerating process for spray roasting |
| CN101109088A (en) * | 2007-08-14 | 2008-01-23 | 邯郸钢铁股份有限公司 | Technique for cleaning acid dirty of acid reactivating machine group inner loop type pipeline |
| CN101126608A (en) * | 2007-09-30 | 2008-02-20 | 赫东波 | Calcining furnace feed pipe on-line cleaning device for preparing cobaltosic oxide |
| KR20130005388A (en) * | 2011-07-06 | 2013-01-16 | 나유집 | Cleaning method and cleaning apparatus |
| CN103663375A (en) * | 2012-08-30 | 2014-03-26 | 宝山钢铁股份有限公司 | Anti-dismantling online dredge device and dredge method of preconcentrator nozzle |
| CN103191594A (en) * | 2013-04-03 | 2013-07-10 | 马钢(集团)控股有限公司 | Acid scale removing device of filter press and acid scale removing process of filter press |
| CN204182641U (en) * | 2014-10-08 | 2015-03-04 | 中冶南方工程技术有限公司 | Roaster supply lines automatic cleaning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310755A (en) * | 2016-08-15 | 2017-01-11 | 中冶南方工程技术有限公司 | Acid regeneration system, cleaning system, acid regeneration method of acid regeneration system and cleaning method of cleaning system |
| CN106310755B (en) * | 2016-08-15 | 2021-09-28 | 中冶南方工程技术有限公司 | Acid regeneration system, cleaning system, acid regeneration method and cleaning method thereof |
| CN113042481A (en) * | 2021-03-03 | 2021-06-29 | 广西柳州钢铁集团有限公司 | Method for on-line cleaning regular packing of absorption tower by hydrochloric acid regeneration system |
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| Publication number | Publication date |
|---|---|
| CN104259156B (en) | 2016-06-01 |
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