CN105509471A - Wear-resisting sintering wind box branch pipe and online repair method - Google Patents
Wear-resisting sintering wind box branch pipe and online repair method Download PDFInfo
- Publication number
- CN105509471A CN105509471A CN201510961994.8A CN201510961994A CN105509471A CN 105509471 A CN105509471 A CN 105509471A CN 201510961994 A CN201510961994 A CN 201510961994A CN 105509471 A CN105509471 A CN 105509471A
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- China
- Prior art keywords
- branch pipe
- wind box
- wear
- box branch
- short tube
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
Abstract
The invention discloses a wear-resisting sintering wind box branch pipe and an online repair method. The wear-resisting sintering wind box branch pipe is characterized in that an easy-to-wear part of the wind box branch pipe is provided with a sealed cavity, wherein a framework network (5) is arranged in the sealed cavity; a pipeline for conveying colloid to the sealed cavity is further arranged in the sealed pipeline; and a high-temperature-resistant acid-resistant silica gel adhesive sticker body (6) is poured into the sealed cavity. According to the wear-resisting sintering wind box branch pipe disclosed by the invention, the characteristics of softness and good ductility of the adhesive sticker body are utilized to prevent a sprayed wear-resisting layer from a cracking and dropping phenomenon due to pipeline vibration, and the characteristics of lasting viscidity and easy supplementary nature of the adhesive sticker body are utilized, so that online repair is realized, and the problems of corrosion to the wear-resisting layer and the short service life are completely solved.
Description
Technical field
The present invention relates to the production technology of the main furnace charge of blast furnace ironmaking, especially relate to a kind of abrasion-proof sintering wind box branch pipe and at lines mending method.
Background technology
Between sintering machine wind box and main exhauster, flue leaks out, usually about 10% of sintering machine main exhausting amount is accounted for, this position ubiquity leaks out seriously, obstinate, the problem that process energy consumption is high, though dropped into a large amount of manpower and materials to carry out leak stopping maintenance, but new leak source constantly produces and is absorbed among vicious circle, reason of searching to the bottom is that the wear-resisting problem of wind box branch pipe and flue is not solved effectively, sintering deposit particle is because of the working condition of high negative pressure, wash away wind box branch pipe and flue inner wall at a high speed, the wear-resisting spray paint anti-vibration of existing inner-walls of duct, abrasion resistance can be taken into account, hydraulic performance decline, the lost of life, air leakage rate of sintering machine is caused to can not get effective control, the green economy of serious restriction sintering machine is run.
Patent document 1 discloses a kind of conveyance conduit, by being provided with baffle-box between input pipe and efferent duct, the side-walls relative with input pipe of baffle-box is provided with bolster, bolster bears the souring of the ore pulp flowing to baffle-box from input pipe, thus, avoid the wearing and tearing of baffle-box, extend the service life of baffle-box, thus the perforation avoiding conveyance conduit turning is leaked, and ensure that the safe operation of whole piece pipeline.Due to when bolster serious wear by gathering hole exchange buffering part, thus ensure that baffle-box is not worn, improve operation rate.Patent document 2 discloses a kind of sintering wind box branch pipe operator guards, comprise the hexsteel being fixed on arm outside, mullite coating, steel plate, described hexsteel is fixed on a tube outer surface by anchoring piece, described mullite coating spreads upon arm outside, and hexsteel is covered, it is outside that described steel plate is arranged in mullite coating, described steel plate, fastening by anchoring piece between hexsteel and mullite coating, according to above technical scheme, after wind box branch pipe burns, this novel protected masonry construction, refractory material is had due to interior, there is steel plate outward, naturally the arm that new has been become, refractory material intensity is high, wearability is strong, long service life improves more than twice.Patent document 3 discloses a kind of sintering machine wind box arch section wear-resistant device, and this device comprises: clamping plate (1), seal closure (2), sealing gasket (3), fastening bolt (4), board slot (5), wear-resisting rubber (6); Clamping plate (1) are positioned at wear-resisting rubber both sides, seal closure (2) is positioned at wear-resistant device upper strata, sintering machine wind box (8) is set up board slot (5), wear-resisting rubber (6) inserts in the steel plate groove that bellows are established, seal closure (2) is connected fastening with steel plate groove (5) fastening bolt (4).Advantage is, effectively decreases the sintering machine wind box especially bellows arch section degree of wear, eliminates the restorative procedure adopting hardfacing alloy and grate, reduces reparation amount, has saved dimension inspection and Master Cost, extends sintering machine wind box service life.Patent document 4 discloses a kind of sintering machine wind box with Wear-resistant, high-temperature resistant liner plate, comprise bellows body, it is characterized in that being provided with Wear-resistant, high-temperature resistant liner plate at the inwall of bellows body, this Wear-resistant, high-temperature resistant liner plate is provided with connecting hole, and hexagon socket head cap screw is connected with bellows body through this connecting hole.Upper surface after hexagon socket head cap screw is fastening is lower than the upper surface of Wear-resistant, high-temperature resistant liner plate.Wear-resistant, high-temperature resistant liner plate is Wear-resistant, high-temperature resistant ceramic lining plate.Structure of the present invention is simple, is easy to safeguard, enhances the Wear-resistant, high-temperature resistant performance of bellows, extends its service life, reduce cost, improve economic benefit.Various disclosed technical scheme mostly concentrates in the selection of hard wear-resistant material and the improvement of wind box branch pipe structure above, selecting of high temperature resistant colloidal materials, and online method of repairing has no disclosure.
Prior art document
Patent document 1: Chinese patent 201520459890.2
Patent document 2: Chinese patent 201320712336.1
Patent document 3: Chinese patent 200920222786.6
Patent document 4: Chinese patent 201120057786.2
Summary of the invention
In order to overcome existing sinter machine bellows branch line and flue quick abrasion, the problem that air leak rate of air curtain is high, improve the economy of SINTERING PRODUCTION, jump out the vicious circle of frequent leak stopping, make up the shortcomings and deficiencies that existing flue system wear-resistant process exists, invent a kind of simple and practical, easy to operate, sintering wind box branch pipe of successful, antivibration wear resistant, long-service life high-efficiency and the new method of flue Wear-resistant Treatment, solve an industry difficult problem, fill up field blank.
For solving the problems of the technologies described above, the invention provides a kind of abrasion-proof sintering wind box branch pipe, it is characterized in that: be provided with a closed cavity at the position that wind box branch pipe is easy to wear, skeleton 5 is had in closed cavity, also oriented closed cavity carries the pipeline of colloid in closed cavity, enclosed cavity perfusion in vivo is high temperature resistant Sprouting resistance silica type adhesive sticker colloid 6.
Preferably, skeleton 5 is formed with high temperature resistant glue is bonding by 2 order stainless steel cotton ginning screen cloth 51 and 30 order stainless steel cloths 52, and border is all gluedd joint, and centre is gluedd joint at regular intervals.
Preferably, skeleton 5 also can be 30 order silica gel meshes.
Further, in wind box branch pipe inwall region easy to wear, at regular intervals, use high temperature resistant glue, thermostable fluorine silicon rubber block to be pasted onto on inner-walls of duct or by stainless steel support member bonding or be welded on inner-walls of duct, then skeleton 5 is covered to be bonded in thermostable fluorine silicon rubber block or bonding or to be welded on stainless steel support member.
Further, the boring of abrasion-proof sintering wind box branch pipe pipeline external, poling, soldering stainless steel short tube A2, the inner wear-resisting cavity of straight through tube and wind box branch pipe pipeline external, in the wear-resisting cavity of pipe interior longitudinal stainless steel closed at both ends short tube B3 and and short tube A2 through, short tube B3 evenly arranges multiple stainless steel arm C4, pipeline external short tube A2 joins stop valve 1.
Further, peristaltic pump is used to pour into high temperature resistant Sprouting resistance silica type adhesive sticker colloid 6 by stop valve 1, short tube A2, short tube B3, arm C4 to closed cavity.
Further, a kind of abrasion-proof sintering wind box branch pipe, at lines mending method, is characterized in that: regularly, quantitatively use peristaltic pump to supplement the high temperature resistant Sprouting resistance silica type adhesive sticker colloid 6 of perfusion by stop valve 1, short tube A2, short tube B3, arm C4 to closed cavity.
Visible, cardinal principle of the present invention is: between sintering machine wind box and flue collector, sintering deposit particle from bellows lower high speed wash away wind box branch pipe and flue collector, the most easily there are wearing and tearing especially in the corner of wind box branch pipe and cause leaking out.The restricted lifetime that the poor and particle of resistance to sintering deposit of the wear-resisting spray paint anti-shake performance of tradition washes away.The present invention substitutes conventional spray paint material with high temperature adhesive sticker body, easily adhesive sticker body is filled in mill place at pipeline, utilize the characteristic that the soft ductility of adhesive sticker body is good, prevent spraying abrasion-proof layer from coming off because of pipe vibration cracking, utilize the feature of the persistent sticky of adhesive sticker body, absorption sintering deposit particle is in colloid surface soft landing, " defeat a force with a tenderness " and avoid very stiff and demanding wearing and tearing wearing layer, utilize the feature that adhesive sticker body easily supplements, realize repairing online, thoroughly solve wearing layer wearing and tearing and service life problem.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is existing sintering machine system wind box branch pipe position schematic diagram easy to wear.
Fig. 2 is structural representation of the present invention.
Fig. 3 is that composite wire launches schematic diagram.
Fig. 4 is composite wire scheme of installation.
In Fig. 1-4,1: stop valve; 2: short tube A; 3: short tube B; 4: arm C; 5: skeleton; 51:2 order stainless steel cotton ginning screen cloth; 52:30 order stainless steel cloth; 6: high temperature resistant Sprouting resistance silica type adhesive sticker colloid
Detailed description of the invention
In order to better understand structure of the present invention, function and effect, the following preferred embodiment of existing utilization also by reference to the accompanying drawings, is described in detail.
Structure is known as shown in Figure 1, and wind box branch pipe because the high speed of sintering deposit particle is washed away, is the most severe place of wearing and tearing in turning point.
As Fig. 3, by 30 order stainless steel cloth SL8303 (500 DEG C of high temperature resistant glue), be adhered on 2 order stainless steel cotton ginning screen clothes, border is all gluedd joint, middle 10cm × 10cm interval is gluedd joint, formation for skeleton, has 30 order stainless steel wire composite wires of rigidity with 2 order stainless steel cotton ginning screen clothes.
Preferably, skeleton 5 also can be 30 order silica gel meshes.
In wind box branch pipe inner-walls of duct region easy to wear, by 10cm × 10cm interval, with the high temperature resistant glue of SL8303, by 1cm
2thermostable fluorine silicon rubber block is pasted onto 1cm on inner-walls of duct or according to pipe interior situation
2stainless steel support member bonds or is welded on inner-walls of duct, composite wire is bent according to working condition at wear-resisting boundary, as Fig. 4, then composite wire covering is bonded in silicon rubber block or bonding or is welded on stainless steel support member, form one with inner-walls of duct, see Fig. 2.
In the pipeline external boring that the wear-resisting cavity of wind box branch pipe is corresponding, poling, welding Ф 10 stainless steel short tube A2, the inner wear-resisting cavity of straight through tube and wind box branch pipe pipeline external, again in the wear-resisting cavity of pipe interior longitudinal Ф 10 stainless steel closed at both ends short tube B3 and and short tube A2 through, short tube B3 arranges Ф 6 stainless steel arm C4 every 20cm, arm C4 is made to become branch and the extension of short tube B3, pipeline external Ф 10 short tube A2 joins stop valve 1, use peristaltic pump by stop valve 1, short tube A2, short tube B3, arm C4 pours into high temperature resistant Sprouting resistance silica type adhesive sticker colloid 6 to closed cavity, colloidal volume measures 1.5 times of cavity volume, after making colloid slowly be full of cavity, continue evenly excessive through 30 order silk screen grids, progressively fill 2 eye mesh screen surfaces, colloid thickness is at 0.5 cm, the adhesive sticker colloid wear-resistant coating that final formation is skeleton with 2 eye mesh screens, see Fig. 2, Fig. 4.
Abrasion-proof sintering wind box branch pipe at lines mending method be: by the control of peristaltic pump access sintering computer control system in, with 0.01 times of cavity for volume unit, with 24 hours for chronomere, according to operating condition of sintering machine condition, timely and appropriate discovery adjustment colloid magnitude of recruitment, original magnitude of recruitment is arranged to 1 unit/every 24 hours.
Implementation result:
A: prevent spraying abrasion-proof layer from ftractureing and come off, realizes repairing online, thoroughly solve wearing layer wearing and tearing and service life problem.
B: use abrasion-proof sintering wind box branch pipe and at lines mending method, will significantly reduce the air leak rate of air curtain between sintering machine wind box to main exhauster, significantly reduce recondition expense more than 80% of leaking out simultaneously.
C: direct economic benefit, after carrying out Wear-resistant Treatment by new method to wind box branch pipe and flue, by the air leakage rate of sintering machine of reduction by 10%, with 300m
2sintering machine is example, can obtain benefit 1,530,000 yuan/year by the minimizing of main exhauster electricity.
330kw/h × December × 2 × (1-(1-10%)
1/3) × 0.56 yuan=1,530,000 yuan/year
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. an abrasion-proof sintering wind box branch pipe, it is characterized in that: be provided with a closed cavity at the position that wind box branch pipe is easy to wear, skeleton (5) is had in closed cavity, also oriented closed cavity carries the pipeline of colloid in closed cavity, enclosed cavity perfusion in vivo is high temperature resistant Sprouting resistance silica type adhesive sticker colloid (6).
2. a kind of abrasion-proof sintering wind box branch pipe according to claim 1, it is characterized in that: skeleton (5) is formed with high temperature resistant glue is bonding by 2 order stainless steel cotton ginning screen cloth (51) and 30 order stainless steel cloths (52), border is all gluedd joint, and centre is gluedd joint at regular intervals.
3. a kind of abrasion-proof sintering wind box branch pipe according to claim 1, is characterized in that: skeleton (5) is 30 order silica gel meshes.
4. a kind of abrasion-proof sintering wind box branch pipe according to Claims 2 or 3, it is characterized in that: in wind box branch pipe inwall region easy to wear, at regular intervals, use high temperature resistant glue, thermostable fluorine silicon rubber block to be pasted onto on inner-walls of duct or by stainless steel support member bonding or be welded on inner-walls of duct, then skeleton (5) is covered to be bonded in thermostable fluorine silicon rubber block or bonding or to be welded on stainless steel support member.
5. a kind of abrasion-proof sintering wind box branch pipe according to claim 4, it is characterized in that: the boring of abrasion-proof sintering wind box branch pipe pipeline external, poling, soldering stainless steel short tube A (2), the inner wear-resisting cavity of straight through tube and wind box branch pipe pipeline external, longitudinal stainless steel closed at both ends short tube B (3) in the wear-resisting cavity of pipe interior is also through with short tube A (2), short tube B (3) evenly arranges multiple stainless steel arm C (4), pipeline external short tube A (2) joins stop valve (1).
6. a kind of abrasion-proof sintering wind box branch pipe according to claim 5, is characterized in that: use peristaltic pump to pour into high temperature resistant Sprouting resistance silica type adhesive sticker colloid (6) by stop valve (1), short tube A (2), short tube B (3), arm C (4) to closed cavity.
7. a kind of abrasion-proof sintering wind box branch pipe according to claim 6 is at lines mending method, it is characterized in that: regularly, quantitatively use peristaltic pump to supplement high temperature resistant Sprouting resistance silica type adhesive sticker colloid (6) of perfusion by stop valve (1), short tube A (2), short tube B (3), arm C (4) to closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510961994.8A CN105509471B (en) | 2015-12-17 | 2015-12-17 | A kind of abrasion-proof sintering wind box branch pipe and in lines mending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510961994.8A CN105509471B (en) | 2015-12-17 | 2015-12-17 | A kind of abrasion-proof sintering wind box branch pipe and in lines mending method |
Publications (2)
| Publication Number | Publication Date |
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| CN105509471A true CN105509471A (en) | 2016-04-20 |
| CN105509471B CN105509471B (en) | 2017-08-22 |
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| CN201510961994.8A Active CN105509471B (en) | 2015-12-17 | 2015-12-17 | A kind of abrasion-proof sintering wind box branch pipe and in lines mending method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184648A (en) * | 2016-08-24 | 2016-12-07 | 陈节庆 | The boats and ships base plate preventer that a kind of safety is high |
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|---|---|---|---|---|
| CN2272517Y (en) * | 1996-09-17 | 1998-01-14 | 钱兵 | Wearing-resisting diffusion pipe for slag discharging |
| CN2585008Y (en) * | 2002-06-11 | 2003-11-05 | 中冶集团长沙冶金设计研究总院 | Wear-resisting bend |
| JP2010144808A (en) * | 2008-12-17 | 2010-07-01 | Kanaflex Corporation | Flexible pressure resistance-wearproof hose |
| CN202195215U (en) * | 2011-07-22 | 2012-04-18 | 江苏亿金环保科技股份有限公司 | Wearable three-way pipeline |
| CN203586798U (en) * | 2013-11-13 | 2014-05-07 | 河南省宏达炉业有限公司 | Sintering machine air box branch pipe protecting structure |
-
2015
- 2015-12-17 CN CN201510961994.8A patent/CN105509471B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272517Y (en) * | 1996-09-17 | 1998-01-14 | 钱兵 | Wearing-resisting diffusion pipe for slag discharging |
| CN2585008Y (en) * | 2002-06-11 | 2003-11-05 | 中冶集团长沙冶金设计研究总院 | Wear-resisting bend |
| JP2010144808A (en) * | 2008-12-17 | 2010-07-01 | Kanaflex Corporation | Flexible pressure resistance-wearproof hose |
| CN202195215U (en) * | 2011-07-22 | 2012-04-18 | 江苏亿金环保科技股份有限公司 | Wearable three-way pipeline |
| CN203586798U (en) * | 2013-11-13 | 2014-05-07 | 河南省宏达炉业有限公司 | Sintering machine air box branch pipe protecting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184648A (en) * | 2016-08-24 | 2016-12-07 | 陈节庆 | The boats and ships base plate preventer that a kind of safety is high |
| CN106184648B (en) * | 2016-08-24 | 2018-01-30 | 威海帝诺亚舸船艇有限公司 | A kind of safe ship bottom plate protector |
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| Publication number | Publication date |
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| CN105509471B (en) | 2017-08-22 |
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