CN108019052A - A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending - Google Patents
A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending Download PDFInfo
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- CN108019052A CN108019052A CN201711266756.0A CN201711266756A CN108019052A CN 108019052 A CN108019052 A CN 108019052A CN 201711266756 A CN201711266756 A CN 201711266756A CN 108019052 A CN108019052 A CN 108019052A
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- brick passage
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
- E04F17/023—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof made of masonry, concrete or other stone-like material; Insulating measures and joints therefor
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of coke-oven coal tracheae brick passage to seal repair apparatus, including batch can, further include air pump, the time relay, spray gun and pressure gauge, the air pump is mutually electrically connected with the time relay, the air pump is connected with the top of batch can, pressure gauge is located at the top of batch can, and one end of the spray gun is connected with being located at the discharge nozzle of batch can lower part, and the other end of spray gun, which is equipped with, to be used to penetrate the gun barrel in gas pipe brick passage.Feed chute is further included, the feed chute is connected to each other with gas pipe brick passage lower end, and gun barrel passes through feed chute, and feed chute is connected with the top of batch can.By the setting energy accurate controlled grouting time of wind pressure and mud residence time and pressure, repairing quality is improved.
Description
Technical field
The present invention relates to coker technical field, and repair apparatus is sealed more particularly, to a kind of coke-oven coal tracheae brick passage
And its sealing method for repairing and mending.
Background technology
The gas pipe brick passage of coke oven is unique coal gas feed path when coke oven is heated with coke-stove gas, and passage is often because of brick
Stitch the reasons such as not full mortar, furnace expansion displacement and heating commutation detonation and produce crack, when crack cannot eliminate in time, lead to
Blowby can occur for the coal gas in road, not only influence the normal heating of coke oven, but also the coal gas of blowby can cause fire, lattice under exhaust gas disc
The disastrous effects such as sub- brick scorification, it is very harmful to furnace body, it is therefore, when finding that blowby occurs for gas pipe brick passage, it is necessary to right in time
Fractured channel carries out grouting encapsulation process.Traditional gas pipe brick passage sealing repairing is primarily present problems with：
1st, operating personnel's operation level varies with each individual, and grouting pressure is controlled inaccurate；When grouting pressure is excessive, it may occur that mud
Slurry rushes in the disastrous effect of flue chute, increases chute resistance, influences coke oven normal heating；When grouting pressure is less than normal, mud arrives
Up to the not position of fractured channel, sealing function is not had, operation need to be repeated, work efficiency is low.
2nd, mud unnecessary after each gas pipe brick channel grouting is trickled down on ground, is wasted seriously, cumbersome, sealing is repaiied
It is low to mend efficiency.
The content of the invention
In view of the shortcomings of the prior art, to be to provide a kind of coke-oven coal tracheae brick passage close for the technical problems to be solved by the invention
Repair apparatus and its sealing method for repairing and mending are sealed, to achieve the purpose that to repair seal operation simplicity.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of coke-oven coal tracheae brick passage seals repair apparatus, including batch can, further includes air pump, the time relay, spray gun
And pressure gauge, the air pump are mutually electrically connected with the time relay, the air pump is connected with the top of batch can, and pressure gauge is located at batch can
Top, one end of the spray gun is connected with being located at the discharge nozzle of batch can lower part, and the other end of spray gun, which is equipped with, to be used to penetrate coal gas
Gun barrel in pipe brick passage.
Feed chute is further included, the feed chute is connected to each other with gas pipe brick passage lower end, and gun barrel passes through feed chute, feed chute
It is connected with the top of batch can.
The bottom of the batch can is pyramidal structure, and discharge nozzle is located at the bottom of pyramidal structure.
The top of the batch can is equipped with charge pipe and exhaust pipe.
Locomotive is further included, the batch can and air pump and the time relay are each provided at locomotive.
The feed chute is the U-type groove of upper end opening, and the upper end of feed chute passes through loose joint and gas pipe brick passage lower end phase
Docking.
The bottom of the feed chute is connected by feed back pipe with batch can top, and valve is equipped with feed back pipe.
A kind of sealing method for repairing and mending using coke-oven coal tracheae brick passage sealing repair apparatus, comprises the following steps：
(1) before repairing, first by need to the branch gas tube regulating cock of the number of repairing close, turn on the pipe cap of lower jet pipe bottom,
Drill rod is put in gas pipe brick passage from lower jet pipe bottom, clean rear extraction is removed into the bridging being suspended on conduit wall；
(2) it is by sealing slurry after charge pipe loads batch can, charge pipe is closed；
(3) gun barrel of spray gun is put in gas pipe brick passage, then by under the work female connector of the loose joint on spray gun and coal gas
Nozzle hole docking is tightened, and spray gun is fixed under coal gas on jet pipe；
(4) compressed air output pressure value is set on air pump, and when setting on-delay on the time relay
Between after, booster air pump, spray gun is sent into compressed air by mud from batch can, then is led to from gun barrel front port flowing full into gas pipe brick
In road, the mud that flowing full gets off can be flow in feed chute along with pipe brick passage and lower jet pipe, keep mud flowing full state logical
Road stays for some time, and after waiting on-delay to be powered off to point, valve on batch can exhaust pipe is opened deflation pressure release to zero-bit；
(5) valve on feed back pipe is opened, the unnecessary mud in pipe brick passage is back to from feed chute in batch can；
(6) the work female connector of loose joint is unclamped, exits spray gun, then is cleaned gas pipe brick passage one time with drill rod, prevents mud
Channel diameter diminishes after slurry spray repair；
(7) gas-fired heating units such as coal gas regulating cock, nozzle and lower jet pipe pipe cap and pipe fitting are reverted into normal heating
State, after treating whole passage repairing work whole, batch can and spray gun are cleaned up.
Compared with prior art, the present invention has the following advantages：
The sealing repair apparatus and its sealing method for repairing and mending design are reasonable, pass through wind pressure and the setting energy of mud residence time
Accurate controlled grouting time and pressure, improve repairing quality, and can prevent mud from entering chute, save refractory clay, reduce
Repair cost；And seal operation simplicity is repaired, reduces the labor intensity of worker, it is safe and efficient.
Brief description of the drawings
The content expressed by each width attached drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is present invention sealing repair apparatus structure diagram.
Fig. 2 is present invention sealing repair apparatus schematic top plan view.
Fig. 3 is spray gun structure schematic diagram of the present invention.
Embodiment
Below against attached drawing, by the description of the embodiment, making to embodiment of the invention further details of
Explanation.
As shown in Figure 1 to Figure 3, coke-oven coal tracheae brick passage sealing repair apparatus, including batch can, air pump, time relay
Device, spray gun and pressure gauge, air pump and the time relay are mutually electrically connected, and air pump is connected with the top of batch can, and pressure gauge is located at batch can
Top, one end of spray gun is connected with being located at the discharge nozzle of batch can lower part, and the other end of spray gun, which is equipped with, to be used to penetrate gas pipe brick
Gun barrel in passage.
Feed chute is further included, feed chute is connected to each other with gas pipe brick passage lower end, and gun barrel passes through feed chute, feed chute and material
The top of tank is connected.Feed chute is the U-type groove of upper end opening, and the upper end of feed chute passes through loose joint and gas pipe brick passage lower end phase
Docking.The bottom of feed chute is connected by feed back pipe with batch can top, and valve is equipped with feed back pipe.
Using the sealing method for repairing and mending of coke-oven coal tracheae brick passage sealing repair apparatus, comprise the following steps：
(1) before repairing, first by need to the branch gas tube regulating cock of the number of repairing close, turn on the pipe cap of lower jet pipe bottom,
Drill rod is put in gas pipe brick passage from lower jet pipe bottom, clean rear extraction is removed into the bridging being suspended on conduit wall；
(2) it is by sealing slurry after charge pipe loads batch can, charge pipe is closed；
(3) gun barrel of spray gun is put in gas pipe brick passage, then by under the work female connector of the loose joint on spray gun and coal gas
Nozzle hole docking is tightened, and spray gun is fixed under coal gas on jet pipe；
(4) compressed air output pressure value is set on air pump, and when setting on-delay on the time relay
Between after, booster air pump, spray gun is sent into compressed air by mud from batch can, then is led to from gun barrel front port flowing full into gas pipe brick
In road, the mud that flowing full gets off can be flow in feed chute along with pipe brick passage and lower jet pipe, keep mud flowing full state logical
Road stays for some time, and after waiting on-delay to be powered off to point, valve on batch can exhaust pipe is opened deflation pressure release to zero-bit；
(5) valve on feed back pipe is opened, the unnecessary mud in pipe brick passage is back to from feed chute in batch can；
(6) the work female connector of loose joint is unclamped, exits spray gun, then is cleaned gas pipe brick passage one time with drill rod, prevents mud
Channel diameter diminishes after slurry spray repair；
(7) gas-fired heating units such as coal gas regulating cock, nozzle and lower jet pipe pipe cap and pipe fitting are reverted into normal heating
State, after treating whole passage repairing work whole, batch can and spray gun are cleaned up.
By the setting energy accurate controlled grouting time of wind pressure and mud residence time and pressure, repairing quality is improved,
And can prevent mud from entering chute, refractory clay is saved, reduces repairing cost；And seal operation simplicity is repaired, reduces work
The labor intensity of people, it is safe and efficient.
Instantiation of the present invention is described in detail with reference to Fig. 1 to Fig. 3.
Batch can 1 is the hermetically sealed container that stainless-steel sheet makes, and the middle and upper part of batch can 1 is circle, and top is planar shaped, bottom
Portion is circular cone " V " shape；Charge pipe 7, forcing pipe 8, exhaust pipe 9,10 each one, pressure gauge are equipped with the top of batch can 1；Charge pipe 7
With 1 cun of steel pipe manufacturing, 6 points of steel pipe manufacturings of forcing pipe 8 and exhaust pipe 9；A pipe collar 11 is set on charge pipe 7, is set on pipe collar 11
One pipe plug 12；Set a ball valve 13-1 and quick coupling 16-1 on forcing pipe 8, forcing pipe 8 is fast by rubber leather hose 6 and air pump 3
Quick coupling 16-6 couples；A ball valve 13-2 is set on exhaust pipe 9；A feed back pipe 14-1 is set in the upper side of batch can 1, with length
6 points of steel pipe manufacturings of 100mm, feed back pipe 14-1 and 1 side outer wall angle at 45 ° of batch can, set a ball valve 13-3 on feed back pipe 14-1
Coupled with quick coupling 16-2, feed back pipe 14-1 by rubber leather hose 6 with the quick coupling 16-3 of spray gun 2；In the bottom of batch can 1
If a discharge nozzle 17, with 6 points of steel pipe manufacturings, a gate valve 15 and quick coupling 16-4 are set on discharge nozzle 17, discharge nozzle 17 passes through rubber
Hose 6 couples with the quick coupling 16-5 of spray gun 2.Batch can 1 is weldingly fixed on the stent 21-1 of trolley 5.
Spray gun 2 includes gun barrel 18, feed chute 19, loose joint 20, ball valve 13-4, quick coupling 16-3 and 16-5.Gun barrel 18 is used
6 points of steel pipe manufacturings of long 1500mm, feed chute 19 make of 57 steel pipe of outside diameter and steel plate of long 150mm；Gun barrel 18 is arranged at back
Centerline in hopper 19 simultaneously protrudes 19 bottom 150mm of feed chute, returns through the bottom of feed chute 19, the end port of gun barrel 18
Gap steel plate welded seal between 19 bottom of hopper and gun barrel 18, makes steel pipe 19 form the " u "-shaped hopper of a upper end opening；
The anchor tip of loose joint 20 is arranged to the upper port of feed chute 19, the effect of the work female connector of loose joint 20 is and jet pipe under coal gas
The tight connection of mouth, spray gun 2 is fixed under coal gas on jet pipe；One is set to lead at the side of feed chute 19 place parallel with bottom
Hole circular hole, the 6 steel splitting pipes of one long 150mm of welding set ball valve 13-4 as feed back pipe 14-2 on feed back pipe 14-2 on the outside of circular hole
One each with quick coupling 16-3；The end port of gun barrel 18 sets a quick coupling 16-5, so as to can quickly and easily with rubber
The supporting quick coupling 16 set on leather hose 6 connects.
Spatial altitude of the feed chute 19 on spray gun 2 that the present invention designs when operating with is higher than batch can 1, so that pipe brick
Unnecessary mud in passage can be back in batch can 1 from feed chute 19 automatically because of free fall.
The effect of small anti-explosion high-pressure pump 3 is to provide source of the gas power for batch can 1, with compressed air by mud from batch can 1
In interior force feed to gas pipe brick passage.The technical conditions of type selecting：Design maximum output pressure is 1MPa, oil-free, anhydrous compression, if
There is pressure gauge, there is output pressure to reach setup pressure value and be automatically stopped aerification function, it is allowed to media water-bearing vapour, voltage 220V.
Air pump 3 is fixed by bolts on the stent 21-2 of trolley 5 by the perforation of air pump base, and the gas outlet of air pump 3 sets one
Quick coupling 16-6, in order to quickly be coupled with the forcing pipe 8 of batch can 1 by rubber leather hose 6.
The time relay 4 is arranged between 3 power connection of air pump and power supply by series system.Work in invention
With：The on-delay time of air pump 3 is set on the time relay 4, the output pressure of air pump 3 is reached setting value and holding one
After the section time, the time relay 4 is cut off the power again, air pump 3 is stopped gas transmission.The time relay 4 is fixed on by perforated bolt
On the stent 21-2 of trolley 5.
The setting of the time relay 4 can be such that the compressed air pressure into batch can 1 is maintained in setting value simultaneously in the present apparatus
A period of time is maintained, mud is stopped certain time in pipe brick passage, to ensure that mud infilters, fills splitting in pipe brick passage
Seam.On-delay setting time repairs empirical value, i.e. residence time of the mud in gas pipe brick passage for gas pipe brick passage,
Can the length of time is directly related to passage brickwork joint be filled by mud, the setting of mud residence time passage time relay 4
And automatically control, the drawbacks of residence time caused by when can eliminate manual control is different in size, repairing quality can be improved.
Trolley 5 is to use angle steel, steel plate and steel pipe manufacturing, by handlebar 22, stent 21-1, stent 21-2 and stent 21-3, car
The composition such as wheel 23, bottom frame 24.Two of rubber leather hose 6 is equipped with quick coupling 16, so as to can quickly and easily can respectively with it is other
Connect matched 16 secure rigid of quick coupling.
Specific repairing encapsulating method of the invention is as follows：
Fine grained fire clay and water of sieving etc. are stirred evenly after charge pipe 7 loads batch can 1, by the mouth of pipe of charge pipe 7
Closure is tightened with pipe plug 12.Present apparatus working status before repairing work：Two of all rubber leather hoses 6 by quick coupling 16 with
Each interface is connected, and sees figure；8 ball valve 13-1 standard-sized sheets of forcing pipe on batch can 1,9 ball valve 13-2 of exhaust pipe are closed, feed back pipe 14-1
Closed with ball valve 13-3,13-4 on 14-2,17 gate valve of discharge nozzle, 15 standard-sized sheet.
Before repairing, first by need to the branch gas tube regulating cock of the number of repairing close, the pipe cap of lower jet pipe bottom is turned on, by steel
Pricker is put in gas pipe brick passage from lower jet pipe bottom, and the bridging such as the graphite being suspended on conduit wall are removed clean rear extraction,
Again tight gas nozzle is blocked up with the iron wire for being wrapped with fine ceramic cordage.
First spray gun 2 is extended in pipe brick passage from lower nozzle hole, then work female connector and coal gas by the loose joint 20 on spray gun 2
Lower nozzle hole docking is tightened, and spray gun 2 is fixed under coal gas on jet pipe.
After above-mentioned Job readiness, compressed air output pressure value is set on air pump 3, and in the time relay 4
On set the on-delay time after, booster air pump 3, spray gun 2 is sent into compressed air by mud from batch can 1, then from gun barrel 18
Front port flowing full enters in gas pipe brick passage, and the mud that flowing full gets off can flow to feed chute along with pipe brick passage and lower jet pipe
In 19, mud flowing full state is kept for a period of time, on-delay to be waited to after putting power-off, by 1 exhaust pipe 9 of batch can in channel dwell
Ball valve 13-2 opens deflation pressure release to zero-bit.
1 feed back pipe 14-1 upper ball valves 13-3 of batch can and 2 feed back pipe 14-2 upper ball valves 13-4 of spray gun is opened, makes pipe brick passage
Interior unnecessary mud is back in batch can 1 from feed chute 19.
The work female connector of loose joint is unclamped, exits spray gun 2, then is cleaned gas pipe brick passage one time with drill rod, prevents mud
Channel diameter diminishes after spray repair.
The gas-fired heating units such as coal gas regulating cock, nozzle and lower jet pipe pipe cap and pipe fitting are reverted into normal heating shape
State.
After treating whole passage repairing work whole, batch can 1 and spray gun 2 are cleaned up, prevent remaining mud from expecting
What knot influences to use next time in tank 1 and spray gun 2.
The source of the gas power of batch can 1 is provided in present invention design with minitype high voltage air pump 3, can be set in advance on air pump 3
Good compressed air output pressure value, when being avoided that manual control wind pressure, caused by the notice of people, eyesight and reaction speed
Wind pressure when it is high when it is low.Mud caused by partial pressure Gao Shihui enters flue and blocks chute, and when partial pressure is low, mud is in pipe brick passage
Do not reach the height where brickwork joint inside, influence repairing quality, set minitype high voltage air pump 3 to eliminate these repairings in the present apparatus
Drawback.
The present invention has separately designed feed chute 19, feed back pipe 14-1 and 14-2, present apparatus operation on batch can 1 and spray gun 2
In use, because the spatial altitude of feed chute 19 is higher than batch can 1, the unnecessary mud after the repairing of pipe brick passage can be enable because of free fall
Automatically it is back in feed chute 19 in batch can 1, eliminate to have repaired in the past directly makes mud unnecessary in passage spray gun extraction
Slurry all spills wasting phenomenon on the ground.Present invention design can save refractory material, reduce repairing cost.
Spray gun 2, can tightly be mounted and fixed under coal gas and spray by the loose joint 20 for 19 upper port of feed chute that the present invention designs
Guan Shang, avoid needs the drawbacks of personnel withstand spray gun with hand, mud is trickled down with spray repair operation in the past, reduces work
The labor intensity of people.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements and from aforesaid way
Limitation, as long as employ the present invention design and technical solution carry out various unsubstantialities improvement, or it is not improved will
The design and technical solution of the present invention directly applies to other occasions, within protection scope of the present invention.
Claims (8)
1. a kind of coke-oven coal tracheae brick passage seals repair apparatus, including batch can, it is characterised in that：Further include air pump, the time after
Electric appliance, spray gun and pressure gauge, the air pump are mutually electrically connected with the time relay, and the air pump is connected with the top of batch can, pressure
Table is located at the top of batch can, and one end of the spray gun is connected with being located at the discharge nozzle of batch can lower part, and the other end of spray gun, which is equipped with, to be used
In penetrating the gun barrel in gas pipe brick passage.
2. coke-oven coal tracheae brick passage as claimed in claim 1 seals repair apparatus, it is characterised in that：Feed chute is further included, institute
State feed chute to be connected to each other with gas pipe brick passage lower end, gun barrel passes through feed chute, and feed chute is connected with the top of batch can.
3. coke-oven coal tracheae brick passage as claimed in claim 1 seals repair apparatus, it is characterised in that：The bottom of the batch can is
Pyramidal structure, discharge nozzle are located at the bottom of pyramidal structure.
4. coke-oven coal tracheae brick passage as claimed in claim 1 seals repair apparatus, it is characterised in that：The top of the batch can is set
There are charge pipe and exhaust pipe.
5. coke-oven coal tracheae brick passage as claimed in claim 1 seals repair apparatus, it is characterised in that：Locomotive is further included, institute
State batch can and air pump and the time relay is each provided at locomotive.
6. coke-oven coal tracheae brick passage as claimed in claim 2 seals repair apparatus, it is characterised in that：The feed chute is upper end
The U-type groove of opening, the upper end of feed chute are connected to each other by loose joint and gas pipe brick passage lower end.
7. coke-oven coal tracheae brick passage as claimed in claim 2 seals repair apparatus, it is characterised in that：The bottom of the feed chute
It is connected by feed back pipe with batch can top, and valve is equipped with feed back pipe.
A kind of 8. sealing repairing using the coke-oven coal tracheae brick passage sealing repair apparatus as described in any one of claim 1 to 7
Method, it is characterised in that：The sealing method for repairing and mending comprises the following steps：
(1) before repairing, first by need to the branch gas tube regulating cock of the number of repairing close, the pipe cap of lower jet pipe bottom is turned on, by steel
Pricker is put in gas pipe brick passage from lower jet pipe bottom, and the bridging being suspended on conduit wall is removed clean rear extraction；
(2) it is by sealing slurry after charge pipe loads batch can, charge pipe is closed；
(3) gun barrel of spray gun is put in gas pipe brick passage, then by jet pipe under the work female connector of the loose joint on spray gun and coal gas
Mouth docking is tightened, and spray gun is fixed under coal gas on jet pipe；
(4) compressed air output pressure value is set on air pump, and after setting the on-delay time on the time relay,
Booster air pump, spray gun is sent into compressed air by mud from batch can, then is entered from gun barrel front port flowing full in gas pipe brick passage,
The mud that flowing full gets off can be flow in feed chute along with pipe brick passage and lower jet pipe, keep mud flowing full state in channel dwell
For a period of time, after waiting on-delay to be powered off to point, valve on batch can exhaust pipe is opened into deflation pressure release to zero-bit；
(5) valve on feed back pipe is opened, the unnecessary mud in pipe brick passage is back to from feed chute in batch can；
(6) the work female connector of loose joint is unclamped, exits spray gun, then is cleaned gas pipe brick passage one time with drill rod, prevents mud from spraying
Channel diameter diminishes after benefit；
(7) gas-fired heating units such as coal gas regulating cock, nozzle and lower jet pipe pipe cap and pipe fitting are reverted into normal heating state,
After treating whole passage repairing work whole, batch can and spray gun are cleaned up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266756.0A CN108019052A (en) | 2017-12-05 | 2017-12-05 | A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending |
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|---|---|---|---|
| CN201711266756.0A CN108019052A (en) | 2017-12-05 | 2017-12-05 | A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110003921A (en) * | 2019-03-29 | 2019-07-12 | 山东钢铁集团日照有限公司 | A kind of full irrigation tool with pressure for administering coke-stove gas heating brick gas passage string leakage |
| CN111363563A (en) * | 2020-03-18 | 2020-07-03 | 中国五冶集团有限公司 | Grouting sealing system and method for coke oven gas lower spray pipe brick gas channel full slurry method |
| CN113550592A (en) * | 2021-07-22 | 2021-10-26 | 中国二十二冶集团有限公司 | Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003921A (en) * | 2019-03-29 | 2019-07-12 | 山东钢铁集团日照有限公司 | A kind of full irrigation tool with pressure for administering coke-stove gas heating brick gas passage string leakage |
| CN111363563A (en) * | 2020-03-18 | 2020-07-03 | 中国五冶集团有限公司 | Grouting sealing system and method for coke oven gas lower spray pipe brick gas channel full slurry method |
| CN113550592A (en) * | 2021-07-22 | 2021-10-26 | 中国二十二冶集团有限公司 | Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench |
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Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
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Application publication date: 20180511 |