CN104988254B - Online maintenance process for blast furnace slag processing granulation equipment - Google Patents
Online maintenance process for blast furnace slag processing granulation equipment Download PDFInfo
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- CN104988254B CN104988254B CN201510455497.0A CN201510455497A CN104988254B CN 104988254 B CN104988254 B CN 104988254B CN 201510455497 A CN201510455497 A CN 201510455497A CN 104988254 B CN104988254 B CN 104988254B
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- blast furnace
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- granulation apparatus
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
An online maintenance process for blast furnace slag processing granulation equipment belong to the technical field of maintenance process for blast furnace slag processing equipment and is applied to online overhaul of slag processing granulation equipment. A technical scheme is as below: in the gap of blast furnace tapping, blinding plates are arranged on the inlet and outlet pipes of slag processing single field granulation equipment for isolation, which was isolated, while the other field can continue punching grain lag; after the failure is eliminated, the equipment can return to work. The process not only avoids fire slag discharge and environmental pollution, but also ensures the maximization of economic benefits of blast furnace, so as to provide guarantee for the environment protection and economical operation of the blast furnace. The pipeline blind plates used in the present invention are made of thin steel plates, and has the advantages of easy material drawing, streamlined process and high practical value, so as to ensure the smooth progress of the entire production process of the blast furnace. The process is the first in the industry, can conduct online overhaul and maintenance of punching box, water control electrically operated valve, grating, granulated panel, bottom wear layer, slag flushing pipelines and underflow pipe of granulation equipment, and creates a novel model for maintenance of slag processing equipment, and has excellent application value.
Description
Technical field
The present invention relates to a kind of maintenance craft for realizing blast furnace Slag treatment granulation apparatus on-bne repair, belongs to blast furnace Slag treatment
Maintenance of equipment technique technical field.
Background technology
Granulation apparatus are the nucleus equipments of blast furnace Slag treatment, and blast furnace cinder is granulated Jing water under high pressure, become grain slag after quenching, is
Realize that emission recycles the critical facility with maximization of economic benefit.As blast furnace belongs to consecutive production equipment, granulation
Device interior and relevant device are washed away by grain slag and are affected, and need to periodically be carried out maintenance down, and be discharged fiery slag and not only environment is caused
Harmful effect, and economic benefit will also be damaged, therefore, the cycled recondition of granulation apparatus is safeguarded and is restricted by certain, is
The high-efficient homework of Slag treatment affects.
The content of the invention
The technical problem to be solved is to provide a kind of blast furnace Slag treatment granulation apparatus on-bne repair technique, adopts
This maintenance craft not only can guarantee the normal punching grain slag of blast furnace, it is to avoid fiery slag discharge and the pollution to environment, and guarantee
Blast furnace maximization of economic benefit, is that blast furnace environmental protection, economical operation provide safeguard.
Solve above-mentioned technical problem technical scheme be：
A kind of blast furnace Slag treatment granulation apparatus on-bne repair technique, it is carried out using following steps：
A. punching grain slag gap is utilized, all Pulp pumps for carrying out Slag treatment are out of service；
B. the main power source and control power supply of Pulp pump and granulation apparatus are turned off；
C. two water inlets and an outlet conduit for unclamping and removing single game granulation apparatus will add the method at blind plate
Blue bolt；
D. top opening is respectively welded on the pipeline of flange both sides, pass through top opening by the two of flange using jack
Side flange disk is backed down to both sides, makes the gap between the ring flange of both sides be 10mm；
E. extract old sealing gasket out, and clear up flange face；
F. Xinmi City's packing and blind plate are filled in；
G. flange penetrates bolt, is fastened in diagonal formula one by one；
H. after single game granulation apparatus are successfully isolated, start Pulp pump, one is continued to slag tap in addition（Ferrum）；
I. after single game granulation apparatus or casthouse equipment failture evacuation, by above-mentioned steps remove two added water inlets and
The blind plate of one outlet conduit, resumes production.
Above-mentioned blast furnace Slag treatment granulation apparatus on-bne repair technique, it is described weld on the pipeline of flange both sides back down dress
Four top boards are set to, four top boards are divided into two groups and are respectively welded on the pipeline of flange both sides, in two top boards of flange side
Respectively in the opposite sides of pipeline, top board and duct wall vertical welding, the centrage of two top board length directions are straight positioned at one
On line, the top board of flange both sides is relative respectively up and down, and jack is placed between two top boards up and down in the same side.
The invention has benefit that：
By the construction featuress with reference to blast fumance technique and Slag treatment granulation apparatus, the present invention takes that " single game is slagged tap
（Ferrum）, isolation maintenance " method, when single game granulation apparatus break down, just the water-in and water-out pipeline of the granulation apparatus is led to
Cross and add blind plate and isolated, and other one can then be continued punching grain slag, after pending fault is excluded, you can resume work, from
And avoid the discharge and the pollution to environment of fiery slag.Pipeline blind plate used in the present invention is made with sheet metal, convenience of drawing materials,
Technique is simplified, practical value is high, it is ensured that the whole technological process of production of blast furnace is smoothed out.
The present invention belongs to pioneering in this industry, can carry out the Punched box of granulation apparatus online, control water power movable valve, lattice
Grid, granulation panel, bottom of towe wearing layer, flushing cinder pipeline, and the repair and maintenance of underflow pipe, have started the new of Slag treatment overhaul of the equipments
Pattern, with fabulous application value.
Description of the drawings
Fig. 1 is the blast furnace Slag treatment granulation apparatus on-bne repair process schematic representation of the present invention.
Fig. 2 is pipeline ceiling device schematic diagram in the present invention.
In figure, labelling is as follows：High-pressure water inlet main pipeline 1,1# granulation tower 2,1# high-pressure water inlets arm 3,1# high-pressure water inlet arms
Transition segment 4, pulp water discharge tube 5, pipeline transition segment 6,2# granulation tower 7,2# high-pressure water inlets arm 8,2# high-pressure water inlet arm mistakes
Cross section 9, Residue extraction pipeline transition segment 10, flange 11, top board 12, jack 13.
Specific embodiment
Fig. 1 shows that the concrete steps of the present invention are as a example by isolating 1# granulation systems：
In the 1# high-pressure water inlets arm 3 and 1# high-pressure water inlet arms transition segment 4 that will add blind plate at three before maintenance, and
It is prefabricated on pulp water discharge tube 5 and pipeline transition segment 6, be welded with the device for backing down flange；
A. punching grain slag gap is utilized, all Pulp pumps for carrying out Slag treatment are out of service；
B. the main power source and control power supply of Pulp pump and granulation apparatus are turned off；
C. unclamp and remove water-in and water-out tube method orchid bolt at three of 1# granulations tower 2 described in above-mentioned steps a；
D. coordinate the device for backing down flange using jack 3, the both sides ring flange of flange is backed down into about 10mm to both sides；
E. extract old sealing gasket out, and clear up flange face；
F. Xinmi City's packing and blind plate are filled in；
G. flange penetrates bolt, is fastened in diagonal formula one by one；
H.1# after granulation system is successfully isolated, recover the main power source and control power supply of granulation apparatus, start Pulp pump, 2# grains
Change system can continue punching grain slag；
I., after 1# granulation systems or casthouse equipment failture evacuation, three added pipeline blind plates are removed by above-mentioned steps,
Resume production.
Fig. 1 shows that the isolation of 2# granulation apparatus is identical with 1# granulation apparatus, is granulated two water inlets, water outlets of tower 7 in 2#
Blind plate is added on pipeline, is 2# high-pressure water inlets arm 8 and 2# high-pressure water inlet arms transition segment 9 respectively, and Residue extraction pipeline transition
At section 10 and pulp water discharge tube 5 three.
Fig. 2 shows, the top opening welded on the pipeline of 11 both sides of flange is four top boards 12, and 12 points of four top boards are
Two groups are respectively welded on the pipeline of 11 both sides of flange, 11 side of flange two top boards 12 respectively relative the two of pipeline
Side, top board 12 and duct wall vertical welding, the centrage of two 12 length directions of top board are located on straight line, 11 both sides of flange
Top board it is relative respectively about 12, the same side places jack 13 up and down between two top boards 12.There is reinforcement on top board 12
Plate, to increase intensity.
Claims (2)
1. a kind of blast furnace Slag treatment granulation apparatus on-bne repair technique, it is characterised in that：It is carried out using following steps：
A. punching grain slag gap is utilized, all Pulp pumps for carrying out Slag treatment are out of service；
B. the main power source and control power supply of Pulp pump and granulation apparatus are turned off；
C. two water inlets and an outlet conduit for unclamping and removing single game granulation apparatus will add the flange spiral shell at blind plate
Bolt；
D. top opening is respectively welded on the pipeline of flange both sides, pass through top opening by the both sides of flange using jack
Ring flange is backed down to both sides, makes the gap between the ring flange of both sides be 10mm；
E. extract old sealing gasket out, and clear up flange face；
F. Xinmi City's packing and blind plate are filled in；
G. flange penetrates bolt, is fastened in diagonal formula one by one；
H., after single game granulation apparatus are successfully isolated, start Pulp pump, in addition one continue to slag tap, ferrum；
J., after single game granulation apparatus or casthouse equipment failture evacuation, added two water inlets and are removed by above-mentioned steps
The blind plate of individual outlet conduit, resumes production.
2. blast furnace Slag treatment granulation apparatus on-bne repair technique according to claim 1, it is characterised in that：It is described in flange
（11）The top opening welded on the pipeline of both sides is four top boards（12）, four top boards（12）It is divided into two groups and is respectively welded at method
It is blue（11）On the pipeline of both sides, in flange（11）Two top boards of side（12）Respectively in the opposite sides of pipeline, top board（12）
With duct wall vertical welding, two top boards（12）The centrage of length direction is located on straight line, flange（11）The top of both sides
Plate（12）It is relative respectively up and down, two top boards up and down of the same side（12）Between place jack（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455497.0A CN104988254B (en) | 2015-07-30 | 2015-07-30 | Online maintenance process for blast furnace slag processing granulation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455497.0A CN104988254B (en) | 2015-07-30 | 2015-07-30 | Online maintenance process for blast furnace slag processing granulation equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN104988254A CN104988254A (en) | 2015-10-21 |
| CN104988254B true CN104988254B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510455497.0A Active CN104988254B (en) | 2015-07-30 | 2015-07-30 | Online maintenance process for blast furnace slag processing granulation equipment |
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| CN109132943A (en) * | 2018-08-04 | 2019-01-04 | 国网福建省电力有限公司 | Aerial cooler original place maintenance craft method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003165606A (en) * | 2001-11-29 | 2003-06-10 | Sumitomo Metal Mining Co Ltd | Bucket elevator for water granulation |
| CN200996022Y (en) * | 2007-01-24 | 2007-12-26 | 江苏沙钢集团有限公司 | Blast-furnace cinder granulating plant |
| CN103675518B (en) * | 2013-09-29 | 2017-07-07 | 广州供电局有限公司 | Oil-immersed and high-voltage device maintenance method and device |
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