CN109811100A - A kind of rinse-system of blast-furnace soft water pipeline and purging method - Google Patents
A kind of rinse-system of blast-furnace soft water pipeline and purging method Download PDFInfo
- Publication number
- CN109811100A CN109811100A CN201910291998.8A CN201910291998A CN109811100A CN 109811100 A CN109811100 A CN 109811100A CN 201910291998 A CN201910291998 A CN 201910291998A CN 109811100 A CN109811100 A CN 109811100A
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- total
- soft
- soft water
- 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.)
- Granted
Links
Landscapes
- Cleaning In General (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a kind of rinse-system of blast-furnace soft water pipeline, communicating pipe is added between the total water supplying pipe of the soft water and total return pipe；A blind plate is added between the total return pipe of the soft water and soft water water supply pump group；Water supplying pipe is added at the soft water water supply pump group end, and water supplying pipe connects refrigerant pond outlet pipe and then connection refrigerant pond, so that the total water supplying pipe of the soft water is connected to total return pipe in Blast Furnace Bottom position；Total return pipe adds drainpipe I after cooler between refrigerant pond.The purging method of blast-furnace soft water pipeline is also disclosed in the present invention, by the starting for guaranteeing softened water pump from the method for refrigerant pond diversion；The starting for guaranteeing secondary pressing pump by the method for introducing water at atmospheric pressure before secondary pressing pump, completes the flushing of entire general pipeline, branch pipe；The backwash of cooling wall is directly carried out by water at atmospheric pressure, flushing speed is fast, improves flush efficiency, and pass through Pipe Cutting inspection after rinsing, rinsing quality is good.
Description
Technical field
The present invention relates to field of steel metallurgy, more specifically to the method for blast-furnace soft water pipe flushing.
Background technique
Blast-furnace soft water system is a closed-cycle system, and soft water is for Blast Furnace Bottom water cooling tube, cooling wall, blow-through
The cooling of pipe, tuyere medium sleeve, hot-blast valve and damping down valve.Soft water is divided into two when supplying water through soft water water supply pump group to Blast Furnace Bottom position
Road is supplied to furnace roof through furnace bottom water cooling tube, belly pipe all the way, is supplied to furnace roof through cooling wall all the way, and two path water converges in furnace roof to furnace roof
After soft water endless tube, secondary pressurized pump group is flowed into, divides two-way after pressurization again, be used for the cooling of tuyere medium sleeve all the way, all the way for heat
The cooling of air-valve and damping down valve, this two path water enters total water return pipeline after converging, after degassing tank, expansion drum and cooler,
The recycling of soft water water supply pump group is entered back into, a small amount of soft water consumed in blast furnace production process is by moisturizing pump group moisturizing.Due to soft
Water system is directly supplied water by pond, the flow very little of moisturizing pump group moisturizing, is directly rinsed with soft water uneconomical yet.So soft
The flushing of water requires consideration for how the circulation flushing that big flow is realized by external water source.
In blast furnace construction, the set-up time that cooling wall piping often lags general pipeline is more, and rinsing is first general pipeline, branch
Pipe, then equipment pipe is arrived, so cooling wall should not also participate in rinsing at the beginning.And it is to flow through that blast-furnace soft water, which has 94% flow,
Cooling wall, soft water pump group and secondary pressurized pump group in the case where cooling wall is not involved in flushing, actually in soft water system
It all can not work normally, that is, soft water general pipeline, branch pipe rinse be difficult to realize in advance.Soft water general pipeline, branch pipe flushing finish
Afterwards, such as the flushing of the way of supplying water progress cooling wall by production, then the flushing water of cooling wall can from bottom to top enter cooling wall, then
Import the general pipeline rinsed, in branch pipe.On the one hand this purging method not can guarantee the flushing effect of cooling wall, on the other hand
Also flushed general pipeline, branch pipe be polluted.
Through retrieving, existing patent formula is disclosed.Such as Chinese patent: application number: 201711337221.8, publication date: 2018
On May 18, a kind of back-flushing method of blast furnace cooling stave of the disclosure of the invention, it is ensured that the flushing effect of cooling wall, and
And flushed soft water general pipeline, branch pipe are not influenced, but patent is not involved with the purging method of general pipeline, branch pipe, Er Qiechong
Wash water is to enter cooling wall, since flow is smaller, each road cooling wall branch pipe after entering furnace roof water supply endless tube by furnace bottom water cooling tube
Flushing cannot carry out simultaneously, need to be implemented in batches according to the flow of water supply.
For another example Chinese patent: application number: 201711495352.9, publication date: on June 22nd, 2018, the invention provides
A kind of moisturizing and the method that hot-blast stove cooling water is independent from entire blast-furnace soft water system, are related to hot-blast stove cooling water
Flushing, but moisturizing be mend after secondary pressurized, when main purpose is to guarantee blast furnace overhaul, the cooling water of hot-blast stove
It can be used normally in the case where not starting secondary pressing pump.
Summary of the invention
To solve the above problems, guaranteeing to have abundant water resources when each stage rinses, when pipe flushing rinsed afterwards, does not pollute
The pipeline of flushing, the present invention provides a kind of rinse-system of blast-furnace soft water pipeline and purging methods.
The specific technical proposal of the invention is: a kind of rinse-system of blast-furnace soft water pipeline, including soft water water supply pump group, heat
Each valve of wind furnace, secondary pressing pump, cooling wall, refrigerant pond, total water supplying pipe, total return pipe and several valves, the soft water are total
Water supplying pipe is respectively disconnected with total return pipe, is added in Blast Furnace Bottom position and communicating pipe is connected total water supplying pipe and total return pipe；It is described
The total return pipe of soft water and soft water water supply pump group between add a blind plate；Water supplying pipe is added at the soft water water supply pump group end, is supplied water
Pipe connects refrigerant pond outlet pipe and then connection refrigerant pond, so that the total water supplying pipe of the soft water and total return pipe are in State of Blast Furnace
The connection of bottom position；Total return pipe adds drainpipe I after cooler between refrigerant pond.
Further, the rinse-system further includes normal pressure water system；The communicating pipe is removed, soft water always supplies water
Pipe respectively connects again with total return pipe, has additional connecting tube before the normal pressure water system and secondary pressing pump and connect pipe valve
Door；Drainpipe II is had additional on the cooling water return pipeline of each valve of the hot-blast stove and drain valve is connected to cast house rhone
In；The cooling wall water supply endless tube passes through the sewage pipe added and blowdown valve is connected in water at atmospheric pressure return main.
Further, the secondary pressing pump is provided with bypass pipe and bypass tube valve.
Further, the purging method of a kind of blast-furnace soft water pipeline, comprising the following steps:
1) by starting soft water pump group flushing pipe from the diversion of refrigerant pond
The flushing water of soft water system may be derived from refrigerant pond, and it is blind that the total return pipe of soft water is increased to one before soft water water supply pump group
Plate；The total water supplying pipe of soft water is respectively disconnected with total return pipe, is added in Blast Furnace Bottom position and connects total water supplying pipe and total communicating pipe
Return pipe；Water supplying pipe is added at soft water water supply pump group end, water supplying pipe connects refrigerant pond outlet pipe and then connection refrigerant pond；Always
Return pipe adds drainpipe I after cooler between refrigerant pond；
It intakes from refrigerant pond, starts soft water water supply pump group, water is added between total return pipe by total water supplying pipe, total supply water
Communicating pipe, total return pipe and the drainpipe I added, return water to refrigerant pond；
2) pass through the moisturizing starting secondary pressing pump flushing pipe before secondary pressing pump
The communicating pipe between the total water supplying pipe of soft water and total return pipe is removed first, respectively with total return pipe by the total water supplying pipe of soft water
It reconnects；
Start a soft water water supply pump, water enters furnace roof water supply endless tube by furnace bottom water cooling tube, enters back into secondary pressing pump；By
In furnace bottom water cooling tube this pipe diameter is smaller all the way, so from total water supplying pipe come flushing water a part to be supplied water by cooling wall
Sewage pipe on endless tube branches in water at atmospheric pressure return main；
Restart water at atmospheric pressure water supply pump group, water is allowed to pass through the connecting tube added before normal pressure water system and secondary pressing pump, with
The water sent from soft water pump group is collected to the pipeline before secondary pressing pump；
Start secondary pressing pump, opens the drain valve connected on the cooling water return pipeline of each valve of hot-blast stove, make flushing water logical
Drainpipe II is crossed to be connected in nearest cast house rhone；
3) backwash of cooling wall is carried out by water at atmospheric pressure
The valve between secondary pressing pump, furnace bottom water cooling tube and furnace roof water supply endless tube is closed, the valve before and after tuyere medium sleeve is closed
Door and the valve between cooling wall water supply endless tube and total water supplying pipe；
The aperture of total return pipe degassing tank late gate is adjusted, starts water at atmospheric pressure water supply pump, water is by secondary pressurized pump bypass
Enter cooling wall through each valve cooling tube of hot-blast stove, furnace roof water supply endless tube, and passes through the sewage pipe blowdown on cooling wall water supply endless tube
Into water at atmospheric pressure return main.
Further, after the step 2) pipe flushing is clean, the aperture of drain valve is adjusted, allows water to enter furnace roof total
Pipe, a part of water flow into secondary pressing pump from furnace roof water supply endless tube, and a part of water is back to refrigerant pond from total return pipe.
Further, the secondary pressing pump is provided with bypass pipe and bypass tube valve, and secondary pressing pump is in use, side
Siphunculus valve is closed.
Compared with prior art, rinse-system of the invention can be by guaranteeing softened water pump from the method for refrigerant pond diversion
Starting；The starting for guaranteeing secondary pressing pump by the method for introducing water at atmospheric pressure before secondary pressing pump, completes entire general pipeline, branch pipe
Flushing；The backwash of cooling wall is directly carried out by water at atmospheric pressure, flushing speed is fast, improves flush efficiency, and pass through after rinsing
Pipe Cutting inspection, rinsing quality are good.
Detailed description of the invention
Fig. 1 is from refrigerant pond diversion flushing pipe schematic diagram；
Fig. 2 is that furnace tubes rinse configuration diagram；
In figure: 1, blind plate, 2, water supplying pipe, 3, drainpipe I, 4, communicating pipe, 5, refrigerant pond outlet pipe, 6, sewage pipe, 7,
Blowdown valve, 8, connecting tube, 9, connection tube valve, 10, drain valve, 11, drainpipe II, 22, water at atmospheric pressure return main.
Specific embodiment
Further detailed description is done to the present invention with specific embodiment with reference to the accompanying drawings of the specification.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of rinse-system of blast-furnace soft water pipeline, including soft water water supply pump group, each valve of hot-blast stove,
Secondary pressing pump, cooling wall, refrigerant pond, total water supplying pipe, total return pipe and several valves.
As shown in Figure 1, the total water supplying pipe of soft water is respectively disconnected with total return pipe, communicating pipe 4 is added in Blast Furnace Bottom position
Connect total water supplying pipe and total return pipe；A blind plate 1 is added between the total return pipe of soft water and soft water water supply pump group；Soft water water supply pump group
Water supplying pipe 2 is added at end, and water supplying pipe 2 connects refrigerant pond outlet pipe 5 and then connection refrigerant pond, so that the soft water always supplies water
Pipe is connected to total return pipe in Blast Furnace Bottom position；Total return pipe also adds drainpipe I3 after cooler between refrigerant pond.
In use, starting softened water pump, water the communicating pipe 4 added between total return pipe, total return pipe and is added by total water supplying pipe, total supply water
Drainpipe I3, return water to refrigerant pond.The debugging of soft water water supply pump can be carried out in this way, and can carry out pump house to stokehold soft water
Total circulation flushing to supply water with total return pipe.
As shown in Fig. 2, rinse-system further includes normal pressure water system.Communicating pipe 4 is removed, the total water supplying pipe of soft water and total return water
Pipe respectively connects again.Connecting tube 8 and connection tube valve 9 are had additional before normal pressure water system and secondary pressing pump, starting in this way is normal
When pressing water water supply pump, water can by connecting tube 8, with from the water that soft water pump group is sent be collected to secondary pressing pump before pipeline, this
Sample secondary pressing pump can normal use.
Drainpipe II11 is had additional on the cooling water return pipeline of each valve of hot-blast stove and drain valve 10 is connected to cast house draining
In slot；The sewage pipe 6 added and blowdown valve 7 that cooling wall water supply endless tube passes through are connected in water at atmospheric pressure return main 22.
Above-mentioned secondary pressing pump is provided with bypass pipe and bypass tube valve also can in this way when secondary pressing pump is closed
So that water flow is logical, to realize subsequent cooling wall backwash.
Cooperate above-mentioned rinse-system, a kind of purging method of blast-furnace soft water pipeline comprising the steps of:
1) by starting soft water pump group flushing pipe from the diversion of refrigerant pond
The flushing water of soft water system may be derived from refrigerant pond, and it is blind that the total return pipe of soft water is increased to one before soft water water supply pump group
Plate 1；The total water supplying pipe of soft water is respectively disconnected with total return pipe, Blast Furnace Bottom position add connect communicating pipe 4 total water supplying pipe and
Total return pipe；Water supplying pipe 2 is added at soft water water supply pump group end, water supplying pipe 2 connects refrigerant pond outlet pipe 5 and then connection chilled water
Pond；Total return pipe adds drainpipe I3 after cooler between refrigerant pond；
In use, intaking from refrigerant pond, start soft water water supply pump group, water is by total water supplying pipe, total water supply and total return pipe
Between the communicating pipe 4, total return pipe and the drainpipe I3 added that add, return water to refrigerant pond.Soft water water supply can be carried out in this way
The debugging of pump, and pump house can be carried out and always supplied water to stokehold soft water and the circulation flushing of total return pipe.
Due to from soft water water supply pump group come out total water supplying pipe be to be walked in underground vestibule, Blast Furnace Bottom position out
Face, total return pipe of furnace bottom cooling water, into the same underground vestibule, go out ground, therefore connect in Blast Furnace Bottom position before cooler
The position that siphunculus 4 is connected to is in the outlet port of Blast Furnace Bottom underground vestibule, and two pipes lean on close in this position.Actually this
The flushing of step is the flushing of underground vestibule interior conduit, for some not underground vestibules, pipeline be directly it is buried, also cry and bury
The flushing of ground pipe.
2) by the moisturizing before secondary pressing pump, start secondary pressing pump flushing pipe
When cooling wall is not involved in flushing, only less than the water of 6% flow, by furnace bottom water cooling tube, this branch is supplied to furnace
Water supply endless tube is pushed up, due to the continuous water supply of not no big flow, so secondary pressurized system cannot normally start, it at this time can be by normal
Before pressing water moisturizing to secondary pressing pump, the flushing of soft water system general pipeline, branch pipe can be thus carried out in advance.
It removes first the communicating pipe 4 between the total water supplying pipe of soft water and total return pipe, the total water supplying pipe of soft water and total return pipe is each
From reconnect；
Start a soft water water supply pump, water enters furnace roof water supply endless tube by furnace bottom water cooling tube, enters back into secondary pressing pump；By
In furnace bottom water cooling tube this pipe diameter is smaller all the way, so from total water supplying pipe come flushing water a part to be supplied water by cooling wall
Sewage pipe 6 on endless tube branches in water at atmospheric pressure return main 22；
Restart water at atmospheric pressure water supply pump group, water is allowed to pass through the connecting tube 8 added before normal pressure water system and secondary pressing pump, with
The water sent from soft water pump group is collected to the pipeline before secondary pressing pump；
Start secondary pressing pump, open the drain valve 10 connected on the cooling water return pipeline of each valve of hot-blast stove, allows flushing water
It is connected to by drainpipe II11 in nearest cast house rhone；
After drainpipe II11 outflow water become clean i.e. pipe flushing it is clean after, adjust drain valve 10 aperture, allow water into
Enter furnace roof general pipeline, a part of water flows into secondary pressing pump from furnace roof water supply endless tube, and a part of water is back to chilled water from total return pipe
Pond.
3) backwash of cooling wall is carried out by water at atmospheric pressure
The valve 14,16 between secondary pressing pump, furnace bottom water cooling tube and furnace roof water supply endless tube is closed, is closed before and after tuyere medium sleeve
Valve 17,18 and the valve 12 between cooling wall water supply endless tube and total water supplying pipe；
The aperture of total return pipe degassing tank late gate 21 is adjusted, water at atmospheric pressure water supply pump is started, water is bypassed by secondary pressing pump
Pipe (has this bypass pipe, when secondary pressurized pump operation, bypass tube valve is closed in design；Secondary pressing pump is closed, bypass pipe is opened
Water can directly pass through when valve) enter cooling wall through each valve cooling tube of hot-blast stove, furnace roof water supply endless tube, and supplied water by cooling wall
6 blowdown of sewage pipe on endless tube is into water at atmospheric pressure return main 22.
Embodiment 2
Using the rinse-system and purging method for implementing the blast-furnace soft water pipeline in 1, this method is in the Changjiang river steel 1080m3
Blast furnace, bis- iron head factory 2500m of Ma Gang3Blast furnace, 3200m3It using in blast furnace construction, flushing terminates in one week, by Pipe Cutting inspection,
Rinsing quality has reached code requirement.
The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and using this
Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one
As principle be applied in other embodiments without having to go through creative labor.Therefore, this case is not limited to above embodiments, ability
According to the disclosure of this case, the improvement and modification made for this case all should be in the protection scopes of this case by the technical staff in domain.
Claims (6)
1. a kind of rinse-system of blast-furnace soft water pipeline, including soft water water supply pump group, each valve of hot-blast stove, secondary pressing pump, cooling
Wall, refrigerant pond, total water supplying pipe, total return pipe and several valves, characterized in that the total water supplying pipe of the soft water and total return water
Pipe respectively disconnects, and adds communicating pipe (4) in Blast Furnace Bottom position and connects total water supplying pipe and total return pipe；The total return water of the soft water
A blind plate (1) is added between pipe and soft water water supply pump group；The soft water water supply pump group end is added water supplying pipe (2), and water supplying pipe (2) is even
Connect refrigerant pond outlet pipe (5) and then connection refrigerant pond；Total return pipe is added between refrigerant pond after cooler
Drainpipe I (3).
2. a kind of rinse-system of blast-furnace soft water pipeline according to claim 1, characterized in that the rinse-system is also
Including normal pressure water system；The communicating pipe (4) is removed, the total water supplying pipe of soft water respectively connects again with total return pipe, described
Normal pressure water system and secondary pressing pump before have additional connecting tube (8) and connection tube valve (9)；Each valve of the hot-blast stove is cooling
Water return pipeline on have additional drainpipe II (11) and drain valve (10) is connected in cast house rhone；The cooling wall supplies
Water ring pipe passes through the sewage pipe (6) added and blowdown valve (7) is connected in water at atmospheric pressure return main (22).
3. a kind of rinse-system of blast-furnace soft water pipeline according to claim 1, characterized in that the secondary pressing pump
It is provided with bypass pipe and bypass tube valve.
4. requiring a kind of described in any item purging methods of blast-furnace soft water pipeline of 1-3 according to power, characterized in that including following step
It is rapid:
1) by starting soft water pump group flushing pipe from the diversion of refrigerant pond
The flushing water of soft water system may be derived from refrigerant pond, and the total return pipe of soft water is increased by a blind plate before soft water water supply pump group
(1)；The total water supplying pipe of soft water is respectively disconnected with total return pipe, (4) is added communicating pipe in Blast Furnace Bottom position and connects total water supplying pipe
With total return pipe；It is added water supplying pipe (2) at soft water water supply pump group end, water supplying pipe (2) connects refrigerant pond outlet pipe (5) and then joins
Logical refrigerant pond；Total return pipe adds drainpipe I (3) after cooler between refrigerant pond；
It intakes from refrigerant pond, starts soft water water supply pump group, water is by total water supplying pipe, total connection added between total return pipe of supplying water
Manage (4), total return pipe and the drainpipe I (3) added, return water to refrigerant pond；
2) pass through the moisturizing starting secondary pressing pump flushing pipe before secondary pressing pump
The communicating pipe (4) between the total water supplying pipe of soft water and total return pipe is removed first, respectively with total return pipe by the total water supplying pipe of soft water
It reconnects；
Start a soft water water supply pump, water enters furnace roof water supply endless tube by furnace bottom water cooling tube, enters back into secondary pressing pump；Due to furnace
Bottom water cooling tube this pipe diameter is smaller all the way, so to be supplied water from flushing water a part that total water supplying pipe comes by cooling wall endless tube
On sewage pipe (6) branch in water at atmospheric pressure return main (22)；
Restart water at atmospheric pressure water supply pump group, allow water by the connecting tube (8) added before normal pressure water system and secondary pressing pump, with from
The water that soft water pump group is sent is collected to the pipeline before secondary pressing pump；
Start secondary pressing pump, opens the drain valve (10) connected on the cooling water return pipeline of each valve of hot-blast stove, make flushing water logical
Drainpipe II (11) is crossed to be connected in nearest cast house rhone；
3) backwash of cooling wall is carried out by water at atmospheric pressure
The valve (14,16) between secondary pressing pump, furnace bottom water cooling tube and furnace roof water supply endless tube is closed, is closed before and after tuyere medium sleeve
Valve (12) between valve (17,18) and cooling wall water supply endless tube and total water supplying pipe；
The aperture of total return pipe degassing tank late gate (21) is adjusted, starts water at atmospheric pressure water supply pump, water is by secondary pressurized pump bypass
Enter cooling wall through each valve cooling tube of hot-blast stove, furnace roof water supply endless tube, and passes through sewage pipe (6) row on cooling wall water supply endless tube
Dirt is into water at atmospheric pressure return main (22).
5. a kind of purging method of blast-furnace soft water pipeline according to weighing and require 3, characterized in that step 2) the pipeline punching
After wash clean, the aperture of drain valve (10) is adjusted, water is allowed to enter furnace roof general pipeline, a part of water flows into secondary from furnace roof water supply endless tube
Force (forcing) pump, a part of water are back to refrigerant pond from total return pipe.
6. a kind of purging method of blast-furnace soft water pipeline according to weighing and require 3, characterized in that the secondary pressing pump is set
It is equipped with bypass pipe and bypass tube valve, secondary pressing pump is in use, bypass tube valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291998.8A CN109811100B (en) | 2019-04-12 | 2019-04-12 | Flushing system and flushing method for blast furnace soft water pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291998.8A CN109811100B (en) | 2019-04-12 | 2019-04-12 | Flushing system and flushing method for blast furnace soft water pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109811100A true CN109811100A (en) | 2019-05-28 |
| CN109811100B CN109811100B (en) | 2020-12-22 |
Family
ID=66611735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910291998.8A Active CN109811100B (en) | 2019-04-12 | 2019-04-12 | Flushing system and flushing method for blast furnace soft water pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109811100B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566934A (en) * | 2019-09-26 | 2019-12-13 | 贵州电网有限责任公司 | boiler water circulating pump cooling system pipeline flushing device and method |
| CN110923382A (en) * | 2019-11-22 | 2020-03-27 | 上海宝冶集团有限公司 | Flushing method for blast furnace pure water closed circulating water system |
| CN114480761A (en) * | 2021-12-17 | 2022-05-13 | 中国华冶科工集团有限公司 | Blast furnace soft water closed cycle cooling system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030053614A (en) * | 2001-12-22 | 2003-07-02 | 주식회사 포스코 | An apparatus for filtering cooling water for removing dust in gas of a blast furnace and a method for cleaning gas by using the same apparatus |
| CN201981217U (en) * | 2010-12-29 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Circulating cooling water system for blast furnace tuyere small sleeve |
| CN103421917A (en) * | 2013-08-15 | 2013-12-04 | 北京首钢国际工程技术有限公司 | Blast furnace soft water closed-recirculation cooling system |
| CN108048609A (en) * | 2017-12-14 | 2018-05-18 | 安徽马钢设备检修有限公司 | A kind of back-flushing method of blast furnace cooling wall |
-
2019
- 2019-04-12 CN CN201910291998.8A patent/CN109811100B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030053614A (en) * | 2001-12-22 | 2003-07-02 | 주식회사 포스코 | An apparatus for filtering cooling water for removing dust in gas of a blast furnace and a method for cleaning gas by using the same apparatus |
| CN201981217U (en) * | 2010-12-29 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Circulating cooling water system for blast furnace tuyere small sleeve |
| CN103421917A (en) * | 2013-08-15 | 2013-12-04 | 北京首钢国际工程技术有限公司 | Blast furnace soft water closed-recirculation cooling system |
| CN108048609A (en) * | 2017-12-14 | 2018-05-18 | 安徽马钢设备检修有限公司 | A kind of back-flushing method of blast furnace cooling wall |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566934A (en) * | 2019-09-26 | 2019-12-13 | 贵州电网有限责任公司 | boiler water circulating pump cooling system pipeline flushing device and method |
| CN110566934B (en) * | 2019-09-26 | 2024-04-23 | 贵州电网有限责任公司 | Pipeline flushing device and flushing method for boiler water circulating pump cooling system |
| CN110923382A (en) * | 2019-11-22 | 2020-03-27 | 上海宝冶集团有限公司 | Flushing method for blast furnace pure water closed circulating water system |
| CN114480761A (en) * | 2021-12-17 | 2022-05-13 | 中国华冶科工集团有限公司 | Blast furnace soft water closed cycle cooling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109811100B (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109811100A (en) | A kind of rinse-system of blast-furnace soft water pipeline and purging method | |
| CN102798317A (en) | Cooling system capable of cleaning heat exchanger on line and cleaning method thereof | |
| CN206859397U (en) | The flushing desilting system of gravity stream sewage pipe in pipe gallery | |
| CN102764748B (en) | Method for washing hydraulic lubricating system | |
| CN108262314A (en) | Hydraulic pipeline high-efficiency rinsing method | |
| CN211172272U (en) | System for flushing and shunting municipal sewage pipe | |
| CN217928975U (en) | Hydrophobic hierarchical recovery unit of heat supply network | |
| CN106906320B (en) | Blast furnace water slag-flushing bottom of pond portion backwashing system | |
| CN108193009B (en) | The cooling water system of hot-blast stove and control method | |
| CN106180089B (en) | A kind of aircraft toilet plumbing drain cleaning system | |
| CN210741241U (en) | Benzene hydrogenation pre-evaporator shell pass on-line cleaning system | |
| CN211621785U (en) | Secondary water supply pipeline system | |
| CN110566934B (en) | Pipeline flushing device and flushing method for boiler water circulating pump cooling system | |
| CN107605552B (en) | Lubricating and flushing system for lubricating oil pipeline of steam turbine generator unit | |
| CN108048609A (en) | A kind of back-flushing method of blast furnace cooling wall | |
| CN110923382A (en) | Flushing method for blast furnace pure water closed circulating water system | |
| CN203030588U (en) | Flushing system of heat supply hot water pipe network | |
| CN217877191U (en) | Dirt and silt removing equipment for ternary circulating water system | |
| CN114480761B (en) | Blast furnace soft water closed cycle cooling system and method | |
| CN219572810U (en) | Central air conditioning hot and cold water pipeline washing unit | |
| CN211027378U (en) | Pipeline flushing and water pool leakage testing device | |
| CN215235314U (en) | Dredging device | |
| CN211563922U (en) | Waste heat circulating water washs pre-filming system | |
| CN219355358U (en) | Water-saving backwashing device for filter tank | |
| CN214890537U (en) | Quick switching system for pipeline flushing and filtering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |