CN101571352B - Seal device used for pin hole of bar grate block - Google Patents
Seal device used for pin hole of bar grate block Download PDFInfo
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- CN101571352B CN101571352B CN2009100159464A CN200910015946A CN101571352B CN 101571352 B CN101571352 B CN 101571352B CN 2009100159464 A CN2009100159464 A CN 2009100159464A CN 200910015946 A CN200910015946 A CN 200910015946A CN 101571352 B CN101571352 B CN 101571352B
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- pin hole
- grate block
- bar grate
- cylinder
- axle sleeve
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Abstract
The invention discloses a seal device used for a pin hole of a bar grate block. The seal device solves the problem of air leakage of the prior pin hole of the bar grate block, and has the advantages of simple structure, convenient use and effectively solving the problem of air leakage, and the like. The seal device adopts the following structure that: the device comprises a seal bolt in the pin hole of the bar grate block arranged on the side wall of a sintering machine; the seal bolt comprises three cylinders which have different diameters to form a stepped structure, and a top cylinder passes through the pin hole of the bar grate block and is connected with an external magnetic seal axle sleeve; the magnetic seal axle sleeve absorbs iron-containing powder through magnetic force to seal the pin hole of the bar grate block; the diameter of the magnetic seal axle sleeve is greater than that of the pin hole of the bar grate block, and the magnetic seal axle sleeve also plays a role in sealing the pin hole of the bar grate block; a bottom cylinder of the seal bolt is positioned inside the sintering machine; a middle cylinder is arranged between the top cylinder and the bottom cylinder; and a lug boss between the middle cylinder and the bottom cylinder seals the pin hole of the bar grate block.
Description
The present invention relates to a kind of sealing device, relate in particular to the seal device used for pin hole of bar grate block on a kind of sintering machine.
Background technology
Wind is extremely important in SINTERING PRODUCTION, and vertical sintering speed and output and the air quantity by the bed of material are approximated to proportional relation.For a long time, although the agglomerant author is doing a large amount of work aspect the reduction sintering air leak rate of air curtain.But air leak rate of air curtain is still high, has hindered the development of SINTERING PRODUCTION technology up to the air leak rate of air curtain about 50%, reduces the sintering air leak rate of air curtain, is each sintering producer a great problem anxious to be solved.
Leaking out of present sintering machine pin hole of bar grate block place is very serious, and the inleakage between its inleakage and chassis and slideway is about the same, absolute air leak rate of air curtain about about 10%.For a long time, leaking out of sintering machine pin hole of bar grate block place do not cause agglomerant author's attention, do not take any measure, and leaking out of this position just exists always.The castor bar latch of sintering machine pin hole of bar grate block place installation now, it mainly acts on is to prevent that car body edge castor bar from perk taking place when backhaul, come off, be convenient online replacing in the former design, car body baffle plate pin-and-hole and latch fit clearance are bigger, do not consider the sealing problem of pin hole of bar grate block.
The baffle plate temperature is than higher during the transfer table body of sintering engine backhaul, and comprehensive material material temperature is well below the baffle plate temperature, after the car body charging, comprehensive material before igniting with baffle plate generation heat exchange, cause chassis edge comprehensive material water evaporates, form the siccative layer of certain depth, cause the igniting of chassis charge level inhomogeneous.After chassis enters sintering bellows district, because existing, latch and pin-and-hole leak out in a large number, hot-air enters thus in the comprehensive material of chassis bottom heat exchange takes place in the soaking zone, because water evaporates has been destroyed the heat conductivility of sintering comprehensive material, finally cause the sintering edge effect, the homogeneous that has influenced sintering process is stable.Therefore, the problem of leaking out that solves the sintering machine pin hole of bar grate block is for improving sintering quality, and it is significant to cut down the consumption of energy.
Summary of the invention
Purpose of the present invention is exactly in order to solve the problem that present pin hole of bar grate block leaks out, and provides a kind of and has simple in structurely, easy to use, can effectively solve the seal device used for pin hole of bar grate block of advantages such as the problem of leaking out.
For achieving the above object, the present invention adopts following technical scheme:
A kind of seal device used for pin hole of bar grate block, it comprises the sealing latch of installing in the sintering machine sidewall pin hole of bar grate block, the sealing latch is formed stepped construction by three reducing cylinders, wherein the top cylinder passes pin hole of bar grate block, be connected with the magnetic seal axle sleeve of outside, the magnetic seal axle sleeve is by magnetic force absorption iron content powder-tight pin hole of bar grate block, and the diameter of magnetic seal axle sleeve is greater than the diameter of pin hole of bar grate block; The terminal cylinder of sealing latch is positioned at sintering machine, is middle cylinder between top cylinder and terminal cylinder, and the boss between middle cylinder and terminal cylinder seals up pin hole of bar grate block.
The top cylinder of described sealing latch is provided with pin-and-hole, and the magnetic seal axle sleeve cooperates pin joint by pin-and-hole with pin-and-hole on the cylinder of sealing latch top.
Described magnetic seal axle sleeve is a permanent-magnet material.
Described sealing latch is a kind of being made in mild steel, medium carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat resisting steel, the stainless steel.
Described sealing latch adopts heat resisting steel, and the mass percent of the chemical composition of heat resisting steel is 0.05～0.20%C, 0.15～1.0%Si, 0.35～0.90%Mn, 0.20～3.0%Cr, 0.25～2.50%Mo, 0～1.8%V, 0～1.0%W, 0～0.8%Ti, 0～0.02%B, S and P total amount are no more than 0.035%, and surplus is Fe and the impurity that does not influence performance.
The terminal damaged surface of described sealing latch and end face form the double metallic composite material structure by built-up welding or spraying or surfacing or laser cladding or antiwear heat resisting alloy-layer electric arc deposited or casting or hot-assembling method preparation 2～8mm.
The mass percent of the chemical composition of described antiwear heat resisting alloy-layer is, 1.5～5.0%C, 0.5～3.5%Mn, 0.2～3.2%Si, 15.0～35.0%Cr, Ni are no more than 8.0%, Mo is no more than 6.5%, W is no more than 21.0%, B is no more than 4.0%, surplus is Fe and the impurity that does not influence performance.
The reducing cylinder that the present invention utilizes three stageds of sealing latch to arrange, the bar grate block hole is lived by inner sealing, the outside simultaneously magnetic seal axle sleeve that adopts, form effective magnetic field, the absorption iron dust containing is as packing seal, thereby play sealing function to the full extent, the diameter of magnetic seal axle sleeve also plays sealing function to pin hole of bar grate block greater than the diameter of pin hole of bar grate block.
The invention has the beneficial effects as follows: simple in structure, easy to use, good sealing effect can effectively prevent leaking out of sintering machine, makes sintering process stable, avoids producing the sintering edge effect, has reduced energy consumption.
Description of drawings
Fig. 1 is the structural representation of sealing latch;
Fig. 2 is the structural representation of magnetic seal axle sleeve;
Fig. 3 is the installation diagram of the present invention and sintering machine;
Fig. 4 is a magnetic seal axle sleeve structure schematic diagram.
Wherein, 1. sealing latch, 2. magnetic seal axle sleeve, 3. pin-and-hole, 4. pin hole of bar grate block, 5. sintering machine, 6. top cylinder, 7. in the middle of cylinder, 8. terminal cylinder, 9. antiwear heat resisting alloy-layer.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, Fig. 2, Fig. 3, it comprises the sealing latch of installing in the sintering machine 5 sidewall pin hole of bar grate block 41, sealing latch 1 is formed stepped construction by three reducing cylinders, and wherein top cylinder 6 passes pin hole of bar grate block 4, is connected with the magnetic seal axle sleeve 2 of outside; The terminal cylinder 8 of sealing latch 1 is positioned at sintering machine 5, and 8 of top cylinder 6 and terminal cylinders are middle cylinder 7, and the boss that middle cylinder 7 and terminal cylinder are 8 seals up pin hole of bar grate block.
Be provided with pin-and-hole 3 on the top cylinder 6 of sealing latch 1, magnetic seal axle sleeve 2 cooperates pin joint by pin-and-hole with pin-and-hole on sealing latch 1 top cylinder 6, promptly interconnects by pin.
Magnetic seal axle sleeve 2 can adopt permanent-magnet material manufacturing arbitrarily.
The sealing latch adopts a kind of material to make.
The sealing latch can adopt mild steel, medium carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat resisting steel, stainless steel to make, preferentially select heat resisting steel for use, the chemical composition of heat resisting steel (quality %) is, 0.05%C, 0.15%Si, 0.35%Mn, 0.20%Cr, 0.25%Mo, S and P total amount are 0.035%, surplus is iron and the impurity that does not influence performance.
Embodiment 2:
The sealing latch adopts a kind of material to make.
The sealing latch can adopt mild steel, medium carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat resisting steel, stainless steel to make, and preferentially selects heat resisting steel for use, and the chemical composition of heat resisting steel (quality %) is, 0.1%C, 0.5%Si, 0.60%Mn, 2%Cr, 1%Mo, 0.6%V, 0.2%W, 0.2%Ti, 0.01%B, S and P are no more than 0.025%, and surplus is iron and the impurity that does not influence performance.
Embodiment 3:
The sealing latch adopts a kind of material to make.
The sealing latch can adopt mild steel, medium carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat resisting steel, stainless steel to make, and preferentially selects heat resisting steel for use, and the chemical composition of heat resisting steel (quality %) is, 0.20%C, 1.0%Si, 0.90%Mn, 3.0%Cr, 2.50%Mo, 1.8%V, 1.0%W, 0.8%Ti, 0.02%B, S and P are no more than 0.015%, and surplus is iron and the impurity that does not influence performance.
Embodiment 4:
The sealing latch adopts double metallic composite material to make.
The terminal cylinder of sealing latch is positioned at sintering machine, and the comprehensive material temperature is about 1000 ℃ in the sintering machine, and comprehensive material has violent relative motion with the terminal cylinder of sealing latch, has serious high temperature abrasive wear between the two.
Present embodiment adopts mild steel or medium carbon steel or low-alloy steel etc. to make the matrix of sealing latch, at the surface of the terminal cylinder of sealing latch and the antiwear heat resisting alloy-layer 9 of end face preparation 2～8mm, forms the double metallic composite material structure, and detailed structure is seen Fig. 4.The inner base of the terminal cylinder of sealing latch has good intensity and toughness, and its surperficial antiwear heat resisting layer is played a supportive role, and the terminal damaged surface metal level of sealing latch has good antiwear heat resisting performance, helps increasing the service life.
Antiwear heat resisting alloy-layer 9 can adopt prior art preparations such as built-up welding, spraying, surfacing, laser cladding, electric arc deposited, casting, hot charging, preferentially selects technique for overlaying for use, and built-up welding can be adopted welding materials such as welding rod, welding wire.The chemical composition of antiwear heat resisting alloy-layer (quality %) is, 1.5%C, 0.5%Mn, 0.2%Si, 15.0%%Cr, Ni are no more than 8.0%, Mo is no more than 6.5%, W is no more than 21.0%, B is no more than 4.0%, and surplus is iron and the impurity that does not influence performance.
Embodiment 5:
In the present embodiment, the chemical composition of antiwear heat resisting alloy-layer (quality %) is, 3%C, 2%Mn, 2%Si, 20%Cr, Ni are no more than 6%, Mo is no more than 5%, W is no more than 18%, B is no more than 3%, and surplus is iron and the impurity that does not influence performance.
All the other are identical with embodiment 4, repeat no more.
Embodiment 6:
In the present embodiment, the chemical composition of antiwear heat resisting alloy-layer (quality %) is, 4%C, 3%Mn, 2.5%Si, 25%Cr, Ni are no more than 5%, Mo is no more than 4%, W is no more than 16%, B is no more than 2%, and surplus is iron and the impurity that does not influence performance.
All the other are identical with embodiment 4, repeat no more.
Embodiment 7:
In the present embodiment, the chemical composition of antiwear heat resisting alloy-layer (quality %) is, 5.0%C, 3.5%Mn, 3.2%Si, 35.0%Cr, Ni are no more than 8.0%, Mo is no more than 6.5%, W is no more than 21.0%, B is no more than 4.0%, and surplus is iron and the impurity that does not influence performance.
All the other are identical with embodiment 4, repeat no more.
Claims (7)
1. seal device used for pin hole of bar grate block, it is characterized in that, it comprises the sealing latch of installing in the sintering machine sidewall pin hole of bar grate block, the sealing latch is formed stepped construction by three reducing cylinders, wherein the top cylinder passes pin hole of bar grate block, be connected with the magnetic seal axle sleeve of outside, the magnetic seal axle sleeve is by magnetic force absorption iron content powder-tight pin hole of bar grate block, and the diameter of magnetic seal axle sleeve is greater than the diameter of pin hole of bar grate block; The terminal cylinder of sealing latch is positioned at sintering machine, is middle cylinder between top cylinder and terminal cylinder, and the boss between middle cylinder and terminal cylinder seals up pin hole of bar grate block.
2. seal device used for pin hole of bar grate block as claimed in claim 1 is characterized in that, the top cylinder of described sealing latch is provided with pin-and-hole, and the magnetic seal axle sleeve cooperates pin joint by pin-and-hole with pin-and-hole on the cylinder of sealing latch top.
3. seal device used for pin hole of bar grate block as claimed in claim 1 is characterized in that, described magnetic seal axle sleeve is a permanent-magnet material.
4. seal device used for pin hole of bar grate block as claimed in claim 1 is characterized in that, described sealing latch is a kind of being made in mild steel, medium carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat resisting steel, the stainless steel.
5. seal device used for pin hole of bar grate block as claimed in claim 4 is characterized in that, described sealing latch adopts heat resisting steel, the mass percent of the chemical composition of heat resisting steel is 0.05～0.20%C, 0.15～1.0%Si, 0.35～0.90%Mn, 0.20～3.0%Cr, 0.25～2.50%Mo, 0～1.8%V, 0～1.0%W, 0～0.8%Ti, 0～0.02%B, S and P total amount are no more than 0.035%, and surplus is Fe.
6. as claim 4 or 5 described seal device used for pin hole of bar grate block, it is characterized in that, the terminal damaged surface of described sealing latch and end face form the double metallic composite material structure by built-up welding or spraying or surfacing or laser cladding or antiwear heat resisting alloy-layer electric arc deposited or casting or hot-assembling method preparation 2～8mm.
7. seal device used for pin hole of bar grate block as claimed in claim 6, it is characterized in that, the mass percent of the chemical composition of described antiwear heat resisting alloy-layer is, 1.5～5.0%C, 0.5～3.5%Mn, 0.2～3.2%Si, 15.0～35.0%Cr, Ni are no more than 8.0%, Mo is no more than 6.5%, W is no more than 21.0%, B is no more than 4.0%, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159464A CN101571352B (en) | 2009-06-02 | 2009-06-02 | Seal device used for pin hole of bar grate block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159464A CN101571352B (en) | 2009-06-02 | 2009-06-02 | Seal device used for pin hole of bar grate block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571352A CN101571352A (en) | 2009-11-04 |
| CN101571352B true CN101571352B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100159464A Expired - Fee Related CN101571352B (en) | 2009-06-02 | 2009-06-02 | Seal device used for pin hole of bar grate block |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101811379B (en) * | 2010-05-07 | 2012-11-07 | 山东大学 | Rubber-coating roll with composite rubber-coating layer and method for preparing same |
| CN104776718B (en) * | 2015-04-03 | 2017-04-26 | 燕山大学 | Comprehensive sealing device for belt type sintering machine |
| CN108118264A (en) * | 2017-12-24 | 2018-06-05 | 安徽洛希尔螺纹技术有限公司 | A kind of Novel threaded milling cutter is formulated with special metals |
| CN109666858A (en) * | 2019-02-28 | 2019-04-23 | 浙江华业塑料机械有限公司 | A kind of iron(-)base powder of machine barrel wearing layer |
| CN112361819B (en) * | 2020-11-10 | 2022-07-05 | 新兴铸管股份有限公司 | Sintering equipment air leakage prevention device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB160477A (en) * | 1919-09-04 | 1921-03-31 | Richard Lewis Lloyd | Improvements in and connected with the roasting and sintering of ores and the like |
| US3655174A (en) * | 1969-10-14 | 1972-04-11 | Dravo Corp | Air sealing device for the traveling grates of sintering machines |
| CN2265521Y (en) * | 1996-06-12 | 1997-10-22 | 唐山钢铁集团有限责任公司 | Sintering loop wheel machine grate-bar pressing fastening device |
| CN2581918Y (en) * | 2002-09-06 | 2003-10-22 | 杨润泉 | Grate briquetting pin sealer for sintering machine |
| CN2682360Y (en) * | 2004-02-27 | 2005-03-02 | 宝山钢铁股份有限公司 | Sintering pallet end beam |
| CN2898750Y (en) * | 2006-04-27 | 2007-05-09 | 宝山钢铁股份有限公司 | Grate fixer on end-face of trolley for sintering equipment |
| CN101220864A (en) * | 2008-01-23 | 2008-07-16 | 潘健 | Break-free machine injection and plastic type multipurpose shaft gland |
-
2009
- 2009-06-02 CN CN2009100159464A patent/CN101571352B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB160477A (en) * | 1919-09-04 | 1921-03-31 | Richard Lewis Lloyd | Improvements in and connected with the roasting and sintering of ores and the like |
| US3655174A (en) * | 1969-10-14 | 1972-04-11 | Dravo Corp | Air sealing device for the traveling grates of sintering machines |
| CN2265521Y (en) * | 1996-06-12 | 1997-10-22 | 唐山钢铁集团有限责任公司 | Sintering loop wheel machine grate-bar pressing fastening device |
| CN2581918Y (en) * | 2002-09-06 | 2003-10-22 | 杨润泉 | Grate briquetting pin sealer for sintering machine |
| CN2682360Y (en) * | 2004-02-27 | 2005-03-02 | 宝山钢铁股份有限公司 | Sintering pallet end beam |
| CN2898750Y (en) * | 2006-04-27 | 2007-05-09 | 宝山钢铁股份有限公司 | Grate fixer on end-face of trolley for sintering equipment |
| CN101220864A (en) * | 2008-01-23 | 2008-07-16 | 潘健 | Break-free machine injection and plastic type multipurpose shaft gland |
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| CN101571352A (en) | 2009-11-04 |
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Granted publication date: 20101229 Termination date: 20130602 |