CN104988254A - 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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- CN104988254A CN104988254A CN201510455497.0A CN201510455497A CN104988254A CN 104988254 A CN104988254 A CN 104988254A CN 201510455497 A CN201510455497 A CN 201510455497A CN 104988254 A CN104988254 A CN 104988254A
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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
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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 realizing blast furnace slag process granulation apparatus on-bne repair, belong to blast furnace slag treatment facility maintenance process technical field.
Background technology
Granulation apparatus is the nucleus equipment of blast furnace slag process, and blast furnace slag becomes grain slag after high pressure water granulation, quenching, is the critical facility realizing discharge recycling and maximization of economic benefit.Because blast furnace belongs to consecutive production equipment; granulation apparatus inside and relevant device wash away by grain slag and affect; regularly need carry out maintenance down; and discharge fiery slag and not only detrimentally affect is caused to environment; and economic benefit is also impaired; therefore, the cycled recondition of granulation apparatus is safeguarded and is subject to certain restriction, for the high-efficient homework of Slag treatment affects.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of blast furnace slag process granulation apparatus on-bne repair technique; adopt this maintenance craft not only can guarantee the normal punching grain slag of blast furnace; avoid the discharge of fiery slag and the pollution to environment; and ensure that blast furnace maximization of economic benefit, for blast furnace environmental protection, economical operation provide safeguard.
The technical scheme solved the problems of the technologies described above is:
A kind of blast furnace slag process granulation apparatus on-bne repair technique, it adopts following steps to carry out:
A. utilize punching grain slag gap, all Pulp pump carrying out Slag treatment are out of service;
B. turn off the primary source of Pulp pump and granulation apparatus and control power supply;
C. unclamp and remove the flange bolt that two water-ins of single game granulation apparatus and outlet conduit will add blind plate place;
D. on the pipeline of flange both sides, weld top opening respectively, use screw block to be backed down to both sides by the both sides ring flange of top opening by flange, make the gap between the ring flange of both sides be 10mm;
E. extract old gasket out, and clear up flange face;
F. Xinmi City's packing and blind plate is filled in;
G. flange penetrates bolt, fastening one by one in diagonal formula;
H., after single game granulation apparatus is successfully isolated, start Pulp pump, other one is continued slag tap (iron);
I., after single game granulation apparatus or casthouse equipment failture evacuation, two water-ins added by removing by above-mentioned steps and the blind plate of an outlet conduit, resume production.
Above-mentioned blast furnace slag process granulation apparatus on-bne repair technique; the described top opening welded on the pipeline of flange both sides is four top boards; four top boards are divided on two groups of pipelines being welded on flange both sides respectively; two top boards in flange side are respectively in the relative both sides of pipeline; top board and duct wall vertical welding; the medullary ray of two top board length directions is positioned on straight line, the top board of flange both sides up and down respectively relatively, the same side place screw block between two top boards up and down.
Usefulness of the present invention is:
The present invention is by the constructional feature in conjunction with blast fumance technique and Slag treatment granulation apparatus; take the method for " single game is slagged tap (iron); isolation maintenance "; when single game granulation apparatus breaks down; just isolated by adding blind plate by the water-in and water-out pipeline of this granulation apparatus, other one then can be continued punching grain slag, after pending fault is got rid of; can resume work, thus avoid the discharge of fiery slag and the pollution to environment.Pipeline blind plate steel sheet used in the present invention is made, and draws materials conveniently, technique is simplified, practical value is high, ensure that carrying out smoothly of the whole technological process of production of blast furnace.
The present invention belongs to pioneering in the industry; wearing layer, flushing cinder pipeline at the bottom of the Punched box of granulation apparatus, control water power movable valve, grid, granulation panel, tower can be carried out online; and the repair and maintenance of underflow pipe; start the new model of Slag treatment overhaul of the equipments, there is fabulous application value.
Accompanying drawing explanation
Fig. 1 is blast furnace slag process 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, mark is as follows: high-pressure water inlet main pipeline 1,1# granulation tower 2,1# high-pressure water inlet arm 3,1# high-pressure water inlet arm transition segment 4, pulp water discharge tube 5, pipeline transition segment 6,2# are granulated tower 7,2# high-pressure water inlet arm 8,2# high-pressure water inlet arm transition segment 9, Residue extraction pipeline transition segment 10, flange 11, top board 12, screw block 13.
Embodiment
Fig. 1 shows, and concrete steps of the present invention are to isolate 1# granulation system:
1# high-pressure water inlet arm 3 and the 1# high-pressure water inlet arm transition segment 4 of three place's blind plates to added before maintenance, and prefabricated on pulp water discharge tube 5 and pipeline transition segment 6, be welded with the device backing down flange;
A. utilize punching grain slag gap, all Pulp pump carrying out Slag treatment are out of service;
B. turn off the primary source of Pulp pump and granulation apparatus and control power supply;
C. unclamp and remove the blue bolt of three place's water-in and water-out tube method that 1# described in above-mentioned steps a is granulated tower 2;
D. utilize screw block 3 to coordinate the device backing down flange, the both sides ring flange of flange is backed down about 10mm to both sides;
E. extract old gasket out, and clear up flange face;
F. Xinmi City's packing and blind plate is filled in;
G. flange penetrates bolt, fastening one by one in diagonal formula;
H., after 1# granulation system is successfully isolated, recover the primary source of granulation apparatus and control power supply, start Pulp pump, 2# granulation system can continue punching grain slag;
I., after 1# granulation system or casthouse equipment failture evacuation, three pipeline blind plates added by removing by above-mentioned steps, resume production.
Fig. 1 shows; the isolation of 2# granulation apparatus is identical with 1# granulation apparatus; being granulated on two water inlets of tower 7, an outlet conduit at 2# and adding blind plate, is 2# high-pressure water inlet arm 8 and 2# high-pressure water inlet arm transition segment 9 respectively, and Residue extraction pipeline transition segment 10 and pulp water discharge tube 5 three place.
Fig. 2 shows, the top opening that the pipeline of flange 11 both sides welds is four top boards 12, four top boards 12 are divided on two groups of pipelines being welded on flange 11 both sides respectively, two top boards 12 in flange 11 side are respectively in the relative both sides of pipeline, top board 12 and duct wall vertical welding, the medullary ray of two top board 12 length directions is positioned on straight line, the top board about 12 of flange 11 both sides respectively relatively, the same side place screw block 13 between two top boards 12 up and down.Top board 12 there is reinforcement gusset, to gain in strength.
Claims (2)
1. a blast furnace slag process granulation apparatus on-bne repair technique, is characterized in that: it adopts following steps to carry out:
A. utilize punching grain slag gap, all Pulp pump carrying out Slag treatment are out of service;
B. turn off the primary source of Pulp pump and granulation apparatus and control power supply;
C. unclamp and remove the flange bolt that two water-ins of single game granulation apparatus and outlet conduit will add blind plate place;
D. on the pipeline of flange both sides, weld top opening respectively, use screw block to be backed down to both sides by the both sides ring flange of top opening by flange, make the gap between the ring flange of both sides be 10mm;
E. extract old gasket out, and clear up flange face;
F. Xinmi City's packing and blind plate is filled in;
G. flange penetrates bolt, fastening one by one in diagonal formula;
H., after single game granulation apparatus is successfully isolated, start Pulp pump, other one is continued slag tap (iron);
J., after single game granulation apparatus or casthouse equipment failture evacuation, two water-ins added by removing by above-mentioned steps and the blind plate of an outlet conduit, resume production.
2. blast furnace slag process granulation apparatus on-bne repair technique according to claim 1, it is characterized in that: the described top opening welded on the pipeline of flange (11) both sides is four top boards (12), four top boards (12) are divided on two groups of pipelines being welded on flange (11) both sides respectively, two top boards (12) in flange (11) side are respectively in the relative both sides of pipeline, top board (12) and duct wall vertical welding, the medullary ray of two top board (12) length directions is positioned on straight line, the top board (12) of flange (11) both sides up and down respectively relatively, the same side place screw block (13) between two top boards (12) up and down.
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 true CN104988254A (en) | 2015-10-21 |
| CN104988254B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| 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 |
| CN103675518A (en) * | 2013-09-29 | 2014-03-26 | 广州供电局有限公司 | Maintenance method and device for oil-immersed high-voltage equipment |
-
2015
- 2015-07-30 CN CN201510455497.0A patent/CN104988254B/en active Active
Patent Citations (3)
| 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 |
| CN103675518A (en) * | 2013-09-29 | 2014-03-26 | 广州供电局有限公司 | Maintenance method and device for oil-immersed high-voltage equipment |
Non-Patent Citations (4)
| Title |
|---|
| 周火青等: "炉渣粒化液压系统常见故障处理", 《设备管理与维修》 * |
| 孙国梁等: "INBA法冲渣在日钢的应用与维护实践", 《硅谷》 * |
| 岳岗等: "济钢1750高炉冲渣系统的优化改造", 《上海金属》 * |
| 毕建宏等: "简述软启动器在冲渣粒化系统改造中的应用", 《第23届全国铁合金学术研讨会论文集（下）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN104988254B (en) | 2017-03-22 |
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