CN112157056B - Method of on-line acid pickling deslagging device - Google Patents
Method of on-line acid pickling deslagging device Download PDFInfo
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- CN112157056B CN112157056B CN202010923057.4A CN202010923057A CN112157056B CN 112157056 B CN112157056 B CN 112157056B CN 202010923057 A CN202010923057 A CN 202010923057A CN 112157056 B CN112157056 B CN 112157056B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- 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
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- 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
- B08B9/08—Cleaning containers, e.g. tanks
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a method of an online acid-washing deslagging device, which specifically comprises the following steps: s101, based on the deslagging device, temporarily modifying the deslagging device into a self-circulation cleaning system. S102, the self-circulation cleaning system is pickled in a segmented and time-sharing mode, and a circulation system of cleaning liquid is built. S103, respectively sampling, testing and monitoring data information of the cleaning solution in the self-circulation cleaning system, wherein the data information comprises the pH value, the acid concentration and the hardness of the cleaning solution. S104, neutralizing waste liquid and waste residue generated after the acid washing. The cleaning method utilizes the reaction of hydrochloric acid and carbonate mainly containing calcium and magnesium, completely eliminates the scale formation in the deslagging water pump, the overflow water pump, the inner wall of each pipeline, the overflow water tank and the inner wall of the water storage tank in stages, improves the working current of the deslagging water pump and the overflow water pump, increases the space for the slag water to pass through in each pipeline, the overflow water tank and the water storage tank, and greatly improves the deslagging efficiency of the deslagging device.
Description
Technical Field
The invention relates to the technical field of power plant boiler residue cleaning, in particular to a method of an online acid pickling slag removal device.
Background
The deslagging device of the power plant is a set of auxiliary devices for carrying out subsequent treatment on ash slag generated by a boiler. Particularly, ash and slag gathered at the bottom of a boiler furnace are precipitated, fished and discharged, and the fished ash and slag are transported to be stored in an ash and slag collection way. And precipitating and pressurizing the residual grey water, and finally conveying the residual grey water to a water storage tank for secondary utilization.
The deslagging device comprises a deslagging water pump, a furnace bottom water seal, a slag conveyor, an overflow water tank, a high-efficiency concentrator, a pit, a sewage pump and a water storage tank, wherein the furnace bottom water seal is positioned at the bottom of a boiler hearth and used for conveying ash slag generated in a boiler to the slag conveyor, the main process is that the slag conveyor takes the ash slag out to a slag pulling vehicle, and the slag pulling vehicle conveys the ash slag to an ash slag field for centralized storage. And the residual slag-water mixture after the ash slag is fished out by the slag dragging machine flows into an overflow water tank, the pump is pressurized and conveyed to a high-efficiency concentrator by an overflow water pump, part of the slag-water mixture is conveyed to the water storage tank by the high-efficiency concentrator for precipitation, and the other part of the slag-water mixture is conveyed to a sewage pump and then conveyed to the slag dragging machine by the sewage pump.
And in the whole circulation process of slagging-off, the slag-water mixture is easy in the slagging-off water pump, in the overflow water pump, each pipeline inner wall, overflow pond and tank inner wall scale deposit, through sample analysis, the principal ingredients of dirt is the carbonate of calcium magnesium, after long-time operation of dross removal mechanism, reduce the working current of slagging-off water pump, overflow water pump, reduce work efficiency, make the space that the inside of each pipeline, overflow pond and tank passes through the slag-water simultaneously more and more littleer, always reduce dross removal mechanism's slagging-off efficiency on the whole.
Disclosure of Invention
Aiming at the technical problem, the invention provides a method for an online acid-washing deslagging device, which is used for cleaning the deslagging device by means of an online acid-washing method with the help of a process device.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the method for the on-line acid pickling deslagging device comprises the following steps of carrying out on-line acid pickling on the deslagging device in a semi-starting circulating cleaning mode, wherein acid liquor is added into the deslagging device for cleaning by utilizing the deslagging device, and the method specifically comprises the following steps:
s101, based on the deslagging device, temporarily modifying the deslagging device into a self-circulation cleaning system.
S102, the self-circulation cleaning system is pickled in a segmented and time-sharing mode, and a circulation system of cleaning liquid is built.
S103, respectively sampling, testing and monitoring data information of the cleaning solution in the self-circulation cleaning system, wherein the data information comprises the pH value, the acid concentration and the hardness of the cleaning solution.
S104, neutralizing waste liquid and waste residue generated after the acid washing.
Compared with the prior art, the invention has the following advantages: the cleaning method utilizes the reaction of hydrochloric acid and carbonate mainly containing calcium and magnesium, and completely eliminates the scale formation in the deslagging water pump, the overflow water pump, the inner walls of all pipelines, the overflow water tank and the inner wall of the water storage tank in stages through a half-open and half-cycle cleaning mode, improves the working current of the deslagging water pump and the overflow water pump, improves the working efficiency, increases the space for the slag water to pass through in all the pipelines, the overflow water tank and the water storage tank, and greatly improves the deslagging efficiency of the deslagging device.
More preferably: the self-circulation cleaning system comprises a deslagging water pump, a water storage tank, an overflow water pump, a deslagging water pump, a stirrer and a high-efficiency concentrator, wherein an inlet of the deslagging water pump is connected with the water storage tank, an outlet of the deslagging water pump is connected with an inlet pipeline of the overflow water tank, an outlet of the overflow water tank is connected with an inlet of the overflow water pump, an outlet of the overflow water pump is connected with an inlet pipeline of the high-efficiency concentrator, and an outlet of the high-efficiency concentrator is connected with the water storage tank. The stirrer is arranged in the overflow water tank and is used for stirring and mixing the acid liquor in the overflow water tank.
By adopting the technical scheme, the deslagging device is temporarily changed into the self-circulation cleaning system on the basis of the deslagging device, so that the slag conveyor is completely isolated, and other equipment and pipelines are conveniently cleaned.
More preferably: in step S101, the method of temporarily modifying the slag removal device into a self-circulation cleaning system specifically includes the steps of:
s301, ash residues deposited in an overflow water tank and a water storage tank are cleaned respectively.
S302, a temporary pipeline is added at the bottom of a slag conveyor in the slag removing device and is connected with an overflow water pool, so that the slag conveyor is isolated, and a self-circulation cleaning system is formed.
S303, sampling valves are respectively arranged in pipelines between the deslagging water pump and the overflow water tank, between the overflow water tank and the overflow water pump, between the overflow water pump and the high-efficiency concentrator, between the high-efficiency concentrator and the water storage tank, and between the water storage tank and the deslagging water pump, and the sampling valves are used for providing acid liquor for sampling, testing and detection during circulation.
By adopting the technical scheme, a complete and healthy self-circulation cleaning system is established, and the scaling equipment and the scaling pipelines are all established in the self-circulation cleaning system, so that the full preparation is made for completely cleaning the slag removing device.
More preferably: step S102, the self-circulation cleaning system is pickled in a segmented and time-sharing mode, a circulation system of cleaning liquid is built, and the method specifically comprises the following steps:
s401, adding a hydrochloric acid solution into the overflow water pool, starting a stirrer to stir and mix the hydrochloric acid solution, wherein the concentration range of the hydrochloric acid solution is 1% -2%.
S402, adding a hydrochloric acid corrosion inhibitor into the overflow water tank, wherein the concentration range of the hydrochloric acid corrosion inhibitor in the overflow water tank is 0.3% -0.4%, and circulating for half an hour to uniformly mix the hydrochloric acid corrosion inhibitor and the hydrochloric acid solution.
And S403, adding hydrochloric acid into the overflow water tank to start cleaning.
S404, starting the overflow water pump, opening an outlet of the overflow water pump, conveying the hydrochloric acid solution to the high-efficiency concentrator, and carrying out acid washing on the overflow water tank, the overflow water pump, a pipeline between the overflow water tank and the overflow water pump, the overflow water pump and the high-efficiency concentrator.
S405, starting the high-efficiency concentrator, conveying the hydrochloric acid solution to a water storage tank, and carrying out acid washing on the high-efficiency concentrator, the water storage tank and a pipeline between the high-efficiency concentrator and the water storage tank.
S406, starting a deslagging water pump, and carrying out acid washing on the water storage tank, the deslagging water pump and a pipeline between the water storage tank and the deslagging water pump.
S407, sampling at the outlet of the overflow water pump, the outlet of the deslagging water pump and pipelines between the deslagging water pump and the overflow water tank, and testing and monitoring the pH value, the acid concentration and the hardness of the cleaning solution.
By adopting the technical scheme, the semi-open semi-circulating cleaning mode of the overflow water pump, the deslagging water pump and the high-efficiency thickener is opened step by step, so that the scale in sectional cleaning equipment and pipelines is formed, and the effect of thorough cleaning is realized.
The method is further optimized as follows: step S303, hydrochloric acid is added into the overflow water tank to start cleaning, and the concentration of the hydrochloric acid in the overflow water tank is 30%.
By adopting the technical scheme, the hydrochloric acid concentration enables pipelines between equipment to be fully cleaned.
The method is further optimized as follows: and S304, adding a defoaming agent in the acid washing process of the overflow water tank, the overflow water pump, the pipeline between the overflow water tank and the overflow water pump, the overflow water pump and the high-efficiency thickener.
By adopting the technical scheme, hydrochloric acid reacts with carbonate mainly containing calcium and magnesium in the pickling process to generate a large amount of foam, the foam is more and more filled in equipment and pipelines, the pickling is not facilitated, the defoaming agent is added, the foam generated by the reaction can be eliminated, and convenience is provided for normal pickling.
The method is further optimized as follows: and S307, sampling at the outlet of the overflow water pump, the outlet of the deslagging water pump and pipelines between the deslagging water pump and the overflow water tank, and testing and monitoring the cleaning liquid, wherein the cleaning liquid comprises slag water, hydrochloric acid, a defoaming agent and a corrosion inhibitor.
By adopting the technical scheme, the cleaning solution taken out by sampling is mixed solution, and the mixed cleaning solution is tested and monitored by testing and monitoring.
The method is further optimized as follows: and S102, pickling the self-circulation cleaning system by adopting sectional time sharing, establishing a circulating system of the cleaning liquid, and monitoring the outlet pressure value of the overflow water pump and the outlet pressure value of the deslagging water pump.
Adopt above-mentioned technical scheme, the purpose is whether grow of monitoring overflow water pump's outlet pressure value, the outlet pressure value of removing the sediment water pump to this judges overflow water pump, slagging-off water pump and whether clear thorough of other equipment and pipeline.
Drawings
FIG. 1 is a flowchart of the method of the present embodiment;
FIG. 2 is a flow chart of the self-circulation cleaning system of the present embodiment;
FIG. 3 is a flowchart illustrating a method for establishing a circulation system of a cleaning solution according to the present embodiment;
FIG. 4 is a block diagram of a cleaning process flow of the self-circulation cleaning system of the present embodiment;
FIG. 5 is a block diagram of the process flow of the deslagging apparatus of this embodiment.
Detailed Description
The present invention is described in further detail below with reference to fig. 1, 2, 3, 4, and 5.
A method for an online acid-washing deslagging device adopts a semi-starting circulation cleaning mode to carry out online acid-washing on the deslagging device, the online acid-washing utilizes the deslagging device to add acid liquor into the deslagging device for cleaning, and as shown in figure 1, the method specifically comprises the following steps:
s101, based on the deslagging device, temporarily modifying the deslagging device into a self-circulation cleaning system.
S102, the self-circulation cleaning system is pickled in a segmented and time-sharing mode, and a circulation system of cleaning liquid is built.
S103, respectively sampling, testing and monitoring data information of the cleaning solution in the self-circulation cleaning system, wherein the data information comprises the pH value, the acid concentration and the hardness of the cleaning solution.
S104, neutralizing waste liquid and waste residue generated after the acid washing.
Specifically, self-loopa cleaning system includes slagging-off water pump, tank, overflow pond, overflow water pump, slagging-off water pump, agitator and high-efficient concentrated machine in this embodiment, as shown in fig. 4, the entry and the tank of slagging-off water pump are connected, and the export of slagging-off water pump is connected with the inlet conduit in overflow pond, and the export and the inlet connection of overflow water pump in overflow pond, the export and the inlet conduit connection of high-efficient concentrated machine of overflow water pump, the export and the tank of high-efficient concentrated machine of overflow water pump are connected. The stirrer is arranged in the overflow water tank and used for stirring and mixing acid liquor in the overflow water tank, the slag removing device is temporarily changed into a self-circulation cleaning system on the basis of the slag removing device, the slag dragging machine is completely isolated, and other equipment and pipelines are conveniently cleaned.
Specifically, in the present embodiment, the temporarily modifying the deslagging device to the self-circulation cleaning system in step S101 includes, with reference to fig. 2, fig. 4, and fig. 5, the following steps:
s301, ash residues deposited in an overflow water tank and a water storage tank are cleaned respectively.
S302, a temporary pipeline is added at the bottom of a slag conveyor in the slag removing device and is connected with an overflow water pool, so that the slag conveyor is isolated, and a self-circulation cleaning system is formed.
S303, respectively arranging sampling valves in pipelines between the deslagging water pump and the overflow water tank, between the overflow water tank and the overflow water pump, between the overflow water pump and the high-efficiency concentrator, between the high-efficiency concentrator and the water storage tank, and between the water storage tank and the deslagging water pump, wherein the sampling valves are used for providing acid liquor for sampling, testing and detecting during circulation, a complete and healthy self-circulation cleaning system is established, scaling equipment and pipelines are all established in the self-circulation cleaning system, and full preparation is made for completely cleaning the deslagging device.
Specifically, in this embodiment, step S102 performs acid washing on the self-circulation cleaning system in a segmented time-sharing manner to establish a circulation system of the cleaning solution, as shown in fig. 3 and 4, which specifically includes the following steps:
s401, adding a hydrochloric acid solution into the overflow water pool, starting a stirrer to stir and mix the hydrochloric acid solution, wherein the concentration range of the hydrochloric acid solution is 1% -2%.
S402, adding a hydrochloric acid corrosion inhibitor into the overflow water tank, wherein the concentration range of the hydrochloric acid corrosion inhibitor in the overflow water tank is 0.3% -0.4%, and circulating for half an hour to uniformly mix the hydrochloric acid corrosion inhibitor and the hydrochloric acid solution.
And S403, adding hydrochloric acid into the overflow water tank to start cleaning.
S404, starting the overflow water pump, opening an outlet of the overflow water pump, conveying the hydrochloric acid solution to the high-efficiency concentrator, and carrying out acid washing on the overflow water tank, the overflow water pump, a pipeline between the overflow water tank and the overflow water pump, the overflow water pump and the high-efficiency concentrator.
S405, starting the high-efficiency concentrator, conveying the hydrochloric acid solution to a water storage tank, and carrying out acid washing on the high-efficiency concentrator, the water storage tank and a pipeline between the high-efficiency concentrator and the water storage tank.
S406, the deslagging water pump is started, and the water storage tank, the deslagging water pump and the pipeline between the water storage tank and the deslagging water pump are subjected to acid washing.
S407 pipeline sampling between the outlet of the overflow pump, the outlet of the deslagging water pump, the deslagging water pump and the overflow pool, testing and monitoring the pH value, acid concentration and hardness of the cleaning liquid, and through the semi-open and semi-circulating cleaning mode of step-by-step opening the overflow pump, the deslagging water pump and the high-efficiency thickener, the scale formation in the sectional type cleaning equipment and the pipeline is realized, and the thorough cleaning effect is realized.
Specifically, in this embodiment, in the step S303, hydrochloric acid is added into the overflow water tank to start cleaning, and the concentration of hydrochloric acid in the overflow water tank is 30%, so that the pipes between the devices are sufficiently cleaned.
Specifically, in step S304 carries out the pickling to overflow pond, overflow water pump, pipeline between overflow pond and the overflow water pump, overflow water pump and high-efficient concentrated machine in this embodiment, and the in-process of pickling adds the defoaming agent, and hydrochloric acid and the carbonate that calcium magnesium is given first place to react at the pickling in-process, can produce a large amount of foams, and the foam more and more can be full of equipment and pipeline, is unfavorable for carrying out the pickling, adds the defoaming agent, can eliminate the reaction and produce the foam, provides convenience for the normal clear of pickling.
Specifically, step S307 pipeline sample between overflow pump export, slagging-off water pump export and slagging-off water pump and overflow pond in this embodiment, in the assay, the monitoring washing liquid, the washing liquid includes sediment water, hydrochloric acid, defoaming agent and corrosion inhibitor, so, the washing liquid that the sample was taken out is mixed solution, and assay, monitoring are to this mixed washing liquid assay, monitoring.
Specifically, step S102 in this embodiment adopts the segmentation timesharing to carry out the pickling to self-loopa cleaning system, in the circulation system of establishing the washing liquid, monitors overflow water pump 'S outlet pressure value, removes the outlet pressure value of sediment water pump, and the purpose is whether grow of monitoring overflow water pump' S outlet pressure value, the outlet pressure value of removing the sediment water pump to this judges overflow water pump, slagging-off water pump and whether other equipment and pipeline are clear thoroughly.
In summary, the cleaning method utilizes the reaction of hydrochloric acid and carbonate mainly containing calcium and magnesium, and completely eliminates the scale formation in the deslagging water pump, the overflow water pump, the inner wall of each pipeline, the overflow water tank and the inner wall of the water storage tank in stages through a half-open and half-cycle cleaning mode, improves the working current of the deslagging water pump and the overflow water pump, improves the working efficiency, increases the space for allowing the inside of each pipeline, the overflow water tank and the water storage tank to pass through slag water, and greatly improves the deslagging efficiency of the deslagging device.
The present embodiment is only for explaining the invention, and it is not limited to the invention, and those skilled in the art can make modifications to the embodiment as necessary without inventive contribution after reading the present specification, but all of them are protected by the patent law within the scope of the present invention.
Claims (7)
1. The method of the on-line acid cleaning deslagging device is characterized in that: the method comprises the following steps of carrying out acid washing on the slag removing device on line in a semi-starting circulating cleaning mode, wherein the acid liquor is added into the slag removing device for cleaning by utilizing the slag removing device per se in the on-line acid washing mode, and the method specifically comprises the following steps:
s101, temporarily modifying the deslagging device into a self-circulation cleaning system on the basis of the deslagging device;
s102, pickling the self-circulation cleaning system in a segmented and time-sharing mode to establish a circulation system of cleaning liquid;
s103, respectively sampling, testing and monitoring data information of the cleaning liquid in the self-circulation cleaning system, wherein the data information comprises the pH value, the acid concentration and the hardness of the cleaning liquid;
s104, neutralizing waste liquid and waste residue generated after the acid washing is finished;
the self-circulation cleaning system comprises a deslagging water pump, a water storage tank, an overflow water pump, a deslagging water pump, a stirrer and a high-efficiency thickener;
the step S102 of pickling the self-circulation cleaning system by adopting segmented time sharing to establish a circulation system of the cleaning liquid specifically comprises the following steps:
s401, adding a hydrochloric acid solution into the overflow water tank, starting the stirrer to stir and mix the hydrochloric acid solution, wherein the concentration range of the hydrochloric acid solution is 1% -2%;
s402, adding a hydrochloric acid corrosion inhibitor into the overflow water tank, wherein the concentration range of the hydrochloric acid corrosion inhibitor in the overflow water tank is 0.3% -0.4%, and circulating for half an hour to uniformly mix the hydrochloric acid corrosion inhibitor and the hydrochloric acid solution;
s403, adding hydrochloric acid into the overflow water tank to start cleaning;
s404, starting the overflow water pump, opening an outlet of the overflow water pump, conveying the hydrochloric acid solution to the high-efficiency concentrator, and carrying out acid washing on the overflow water pool, the overflow water pump, a pipeline between the overflow water pool and the overflow water pump, the overflow water pump and the high-efficiency concentrator;
s405, starting the high-efficiency concentrator, conveying the hydrochloric acid solution to the water storage tank, and carrying out acid washing on the high-efficiency concentrator, the water storage tank and a pipeline between the high-efficiency concentrator and the water storage tank;
s406, starting the slag removal water pump, and pickling the water storage tank, the slag removal water pump and a pipeline between the water storage tank and the slag removal water pump;
s407 is in overflow pump export the slagging-off water pump export and the slagging-off water pump with pipeline sample between the overflow pond, assay, monitoring washing liquid pH value, acid concentration and hardness.
2. The method of on-line pickling deslagging apparatus of claim 1, wherein: an inlet of the deslagging water pump is connected with the water storage tank, an outlet of the deslagging water pump is connected with an inlet pipeline of the overflow water tank, an outlet of the overflow water tank is connected with an inlet of the overflow water pump, an outlet of the overflow water pump is connected with an inlet pipeline of the high-efficiency concentrator, and an outlet of the high-efficiency concentrator is connected with the water storage tank; the stirrer is arranged in the overflow water tank and is used for stirring and mixing the acid liquor in the overflow water tank.
3. The method of on-line pickling deslagging apparatus of claim 1, wherein: in the step S101, the step of temporarily modifying the slag removal device into a self-circulation cleaning system specifically includes the steps of:
s301, ash residues deposited in the overflow water tank and the water storage tank are respectively cleaned;
s302, adding a temporary pipeline at the bottom of a slag conveyor in the slag removing device, connecting the temporary pipeline with the overflow water pool, and isolating the slag conveyor to form the self-circulation cleaning system;
s303 sets up the sample valve respectively in slagging-off water pump with overflow water tank, overflow water tank with overflow water pump, overflow water pump with high-efficient concentrated machine, high-efficient concentrated machine with the aqua storage tank and the pipeline between the aqua storage tank and the slagging-off water pump, the sample valve is used for to the sample, assay and the monitoring provides the acidizing fluid when circulating.
4. The method of on-line pickling deslagging apparatus of claim 1, wherein: and S403, adding hydrochloric acid into the overflow water tank to start cleaning, wherein the concentration of the hydrochloric acid in the overflow water tank is 30%.
5. The method of on-line pickling deslagging apparatus of claim 1, wherein: and S404, adding a defoaming agent in the pickling process during pickling of the overflow water tank, the overflow water pump, the pipeline between the overflow water tank and the overflow water pump, the overflow water pump and the high-efficiency thickener.
6. The method of on-line pickling deslagging apparatus of claim 1, wherein: and S407, sampling the overflow pump outlet, the deslagging water pump and a pipeline between the deslagging water pump and the overflow water tank, and testing and monitoring the cleaning liquid, wherein the cleaning liquid comprises slag water, hydrochloric acid, a defoaming agent and a corrosion inhibitor.
7. The method of on-line pickling deslagging apparatus of claim 1, wherein: and S102, pickling the self-circulation cleaning system in a sectional and time-sharing manner, establishing a circulation system of the cleaning liquid, and monitoring the outlet pressure value of the overflow water pump and the outlet pressure value of the deslagging water pump.
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| DE59300031D1 (en) * | 1993-03-26 | 1995-01-12 | Fintelmann Und Dr Meyer G B R | Process for cleaning storage and transport containers, in particular ship tanks with water. |
| CN101637768B (en) * | 2009-08-26 | 2011-05-04 | 中国华冶科工集团有限公司 | Pipeline cleaning method |
| CN102519300B (en) * | 2011-12-07 | 2013-05-15 | 刘沣 | Method for chemically and circularly cleaning scale inside and outside pipes of evaporating tank and heater in the sugar factory |
| CN102494328B (en) * | 2011-12-13 | 2013-04-10 | 长沙市中蓝清洗技术有限公司 | Boiler cleaning process |
| CN103510097B (en) * | 2012-06-26 | 2016-02-17 | 杭州冠洁工业清洗水处理科技有限公司 | Condenser low corrosion high cleanliness chemical cleaning method |
| CN105627339B (en) * | 2016-03-16 | 2019-10-15 | 神华集团有限责任公司 | Recycle slag removing system |
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