CN203128613U - Furnace roller of roller bottom type thermal treatment furnace with internal air exhaust holes - Google Patents
Furnace roller of roller bottom type thermal treatment furnace with internal air exhaust holes Download PDFInfo
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- CN203128613U CN203128613U CN 201320098139 CN201320098139U CN203128613U CN 203128613 U CN203128613 U CN 203128613U CN 201320098139 CN201320098139 CN 201320098139 CN 201320098139 U CN201320098139 U CN 201320098139U CN 203128613 U CN203128613 U CN 203128613U
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- furnace
- roller
- roll body
- end axle
- exhaust holes
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Abstract
The utility model discloses a furnace roller of a roller bottom type thermal treatment furnace with internal air exhaust holes. The furnace roller comprises a roller body, wherein end shafts and baffle rings are welded at two ends of the roller body; the end shaft is arranged in a furnace wall; and a plurality of internal air exhaust holes are formed in the roller body between the first end shaft and the baffle ring on one side of the first end shaft. The furnace roller has the beneficial effects that the internal air exhaust holes are formed in the roller body of the furnace roller; in a heating process, high-temperature and high-pressure air in the roller body can be timely discharged; the discharged air can directly enter a heating region, so that great loss of the heat is avoided, and the heating efficiency of a furnace body is improved; due to the position change of a welded joint, the welded joint can be prevented from being exposed in a high-temperature burning environment for a long time, so that the roller body part exposed in the high-temperature burning environment is integrated; the high-temperature creepage resistance characteristic of a fireproof steel material can be used to the maximum extent; and the service life of the furnace roller is prolonged.
Description
Technical field
The utility model relates to the thermal treatment field, relates in particular to a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent.
Background technology
In present thermal treatment field; exist the form of multiple heat treatment furnace; and roller hearth heat-treated furnace wherein since its have the heated parts two sides and be heated, and heating comparatively fast, characteristics such as more even, be widely used in thermal treatment process such as normalizing, annealing, quenching, tempering.And in roller hearth heat-treated furnace, furnace roller is as the key components and parts of carrying in the transmission system and transmission heated parts, and its capability and performance is determining transmission efficiency and the transmitting accuracy of whole heat treatment furnace, has directly influenced whole production efficiency and running cost.
The classification of furnace roller mainly contains metallic roll and nonmetal roller, water-cooled is arranged and does not have water-cooled, but not metallic roll is divided into the major diameter roller that minor diameter roller that pottery makes and common steel tube are wrapped up in the high-temperature heat-resistance material outward according to the difference of diameter again.The advantage of metallic roll is can crackedly not peel off, but the material of use temperature and roll body has substantial connection, need adopt the heat-resisting steel material that contains Cr, Ni element when use temperature is high, and cost is than higher.The advantage of nonmetal roller is low price, and use temperature can significantly improve, but supporting capacity is limited, and impact resistance is poor, and is frangible or easily peel off, and it is very strict to use operational requirement to need.The water-cooled furnace roller adopts common iron to make, low price, but in use need to consume a large amount of water, and also take away a large amount of heat in the stove simultaneously, the day-to-day operation expense is big, and roller preceding pipeline complexity, in case cut off the water, furnace roller then has the possibility that is burnt out.Anhydrous black furnace roller adopts high temperature steel to make, and price is expensive, but use reliable, convenient, simultaneously can water saving, and reduce complicated water cooling system, thus reduced thermosteresis in the stove.In the use of reality, consider in conjunction with combined factors such as cost, wearing quality, reliability, maintainability, safety and human factories, generally select the furnace roller of no water-cooled heat-resisting steels matter for use.
As shown in Figure 3, when the practical application of furnace roller, because the furnace roller of the general no water-cooled heat-resisting steels matter of using is in the scorching hot environment of high temperature for a long time, therefore the end axle at the furnace roller two ends is equipped with through hole, so that the heat radiation of the exhaust after the high-temperature gas thermal expansion in the roll body; It is too high that yet this kind structure very easily causes holding axle temperature to rise, and makes furnace roller produce distortion, and overflow owing to high-temperature gas all looses, and the calorific loss of heat treatment furnace is very big.Simultaneously, because the welding position between roll body and the end axle is located near the baffle ring, this welding position long-term exposure is among the environment of high temperature sintering, time one, long weld seam was prone to crackle, thereby cause the furnace roller weight capacity to descend, even rupture, had a strong impact on the work-ing life of furnace roller.
The utility model content
The purpose of this utility model is to provide a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent, thereby solves that present furnace roller heat lost by radiation is big, the end axle temperature is spent height and problem such as the welding position is fragile.
For reaching this purpose, the utility model by the following technical solutions:
A kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent comprises roll body, and the roll body two ends are welded with end axle and baffle ring, and described end is located in the furnace wall, and the roll body between the baffle ring of the described first end axle and the first end axle, one side is provided with some inner vents.
Further, the roll body between the baffle ring of the described second end axle and the second end axle, one side is provided with some inner vents.
Further, the perforation direction of described inner vent is perpendicular to the axis direction of roll body.
Further, inboard, described furnace wall is provided with thermofin, and the welding position of described roll body and the first end axle and the second end between centers is weld seam, and weld seam is located in the thermofin.
Preferably, described roll body is the ZG40Cr25Ni20Si2 material.
Preferably, described end axle and baffle ring are the 1Cr18Ni9Ti stainless steel.
The beneficial effects of the utility model are: by offering inner vent at the furnace roller roll body, high temperature and high pressure gas in heat-processed in the roll body can in time be discharged, and institute's expellant gas can directly enter a large amount of losses that heat has been avoided in the heating zone, thereby has improved the heating efficiency of body of heater; The change of position while welding then makes weld seam avoid long-term exposure among the environment of high temperature sintering, thereby make the roll body that is exposed in the high temperature sintering environment partly become an integral body, can utilize the characteristic of the high temperature creep-resisting of heat-resisting steel material to greatest extent, the work-ing life of having improved furnace roller.
Description of drawings
The structural representation of the furnace roller of Fig. 1 is that the utility model embodiment provides a kind of roller hearth heat-treated furnace that is provided with inner vent;
Fig. 2 is the partial enlarged drawing that is provided with the inner vent part of Fig. 1;
Fig. 3 is the structural representation of the furnace roller of roller hearth heat-treated furnace of the prior art.
Among the figure:
1, end axle; 2, roll body; 3, baffle ring; 4, inner vent; 5, weld seam; 6, thermofin; 7, furnace wall; 8, the second end axle.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
The structural representation of the furnace roller of Fig. 1 is that the utility model embodiment provides a kind of roller hearth heat-treated furnace that is provided with inner vent.This is provided with the furnace roller of the roller hearth heat-treated furnace of inner vent, comprise roll body 2, roll body 2 two ends are welded with end axle 1 and baffle ring 3, described end axle 1 is located in the furnace wall 7, the roll body 2 that the baffle ring of the described first end axle 1 and the first end axle, 1 one sides is 3 is provided with some inner vents 4, inner vent 4 makes that the high temperature and high pressure gas in the roll body can in time be discharged in heat-processed, and institute's expellant gas can directly enter a large amount of losses that heat has been avoided in the heating zone, thereby has improved the heating efficiency of body of heater.
During actual the use, for the consideration that further promotes efficient and result of use, can be provided with some inner vents 4 at the roll body 2 of 3 of the baffle rings of the described second end axle 8 and the second end axle, 8 one sides.
Fig. 2 is the partial enlarged drawing that is provided with inner vent 4 parts of Fig. 1.The perforation direction of these some inner vents 4 is perpendicular to the axis direction of roll body 2.In actual applications, for guaranteeing roll body 2 constitutionally stable considerations, the setting of inner vent 4 should be accomplished the axial and symmetry radially of relative roll body 2.
7 inboards, described furnace wall are provided with thermofin 6, the welding position that described roll body 2 and end axle are 1 is weld seam 5, weld seam 5 is located in the thermofin 6, avoided long-term exposure among the environment of high temperature sintering, thereby make the roll body that is exposed in the high temperature sintering environment partly become an integral body, can utilize the characteristic of the high temperature creep-resisting of heat-resisting steel material to greatest extent, the work-ing life of having improved furnace roller.
Two end axle 1 radial loadings that mainly bear from the weight of furnace roller body own and heated parts, baffle ring 3 is mainly used in limiting the movement of heated parts, therefore all preferably adopts the 1Cr18Ni9Ti stainless steel.
During concrete the use, inner vent 4 both can be located at the either side in the two ends of roll body 2, also can be located at the two ends of roll body 2 simultaneously.
Adopt the technical solution of the utility model, the furnace roller roll body can in time be discharged the high temperature and high pressure gas in the roll body in the heat-processed of heat treatment furnace by some inner vents, and institute's expellant gas can directly enter the heating zone, avoid a large amount of losses of heat, thereby improved the heating efficiency of body of heater; Weld seam is positioned at thermofin then makes weld seam avoid long-term exposure among the environment of high temperature sintering, thereby make the roll body that is exposed in the high temperature sintering environment partly become an integral body, can utilize the characteristic of the high temperature creep-resisting of heat-resisting steel material to greatest extent, the work-ing life of having improved furnace roller.
Below only be illustrated with the utility model of embodiment, but the utility model is not limited to above-mentioned size and outward appearance illustration, more should not constitute any restriction of the present utility model.As long as any improvement or modification that the utility model is done all belong within the protection domain of the utility model claim opinion.
Claims (6)
1. furnace roller that is provided with the roller hearth heat-treated furnace of inner vent, comprise roll body (2), it is characterized in that: roll body (2) two ends are respectively equipped with the first end axle (1) and the second end axle (8), described roll body (2) two ends respectively are provided with a baffle ring (3), the described first end axle (1) and the second end axle (8) are located in the furnace wall (7), and the roll body (2) between the baffle ring (3) of the described first end axle (1) and the first end axle (1) one side is provided with some inner vents (4).
2. a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent according to claim 1, it is characterized in that: the roll body (2) between the baffle ring (3) of the described second end axle (8) and the second end axle (8) one sides is provided with some inner vents (4).
3. a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent according to claim 2, it is characterized in that: the perforation direction of described inner vent (4) is perpendicular to the axis direction of roll body (2).
4. a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent according to claim 3, it is characterized in that: inboard, described furnace wall (7) is provided with thermofin (6), welding position between described roll body (2) and the first end axle (1) and the second end axle (8) is weld seam (5), and weld seam (5) is located in the thermofin (6).
5. a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent according to claim 4 is characterized in that: described roll body (2) is the ZG40Cr25Ni20Si2 material.
6. a kind of furnace roller that is provided with the roller hearth heat-treated furnace of inner vent according to claim 4, it is characterized in that: described end axle (1) and baffle ring (3) are the 1Cr18Ni9Ti stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098139 CN203128613U (en) | 2013-03-04 | 2013-03-04 | Furnace roller of roller bottom type thermal treatment furnace with internal air exhaust holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098139 CN203128613U (en) | 2013-03-04 | 2013-03-04 | Furnace roller of roller bottom type thermal treatment furnace with internal air exhaust holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128613U true CN203128613U (en) | 2013-08-14 |
Family
ID=48936609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320098139 Expired - Fee Related CN203128613U (en) | 2013-03-04 | 2013-03-04 | Furnace roller of roller bottom type thermal treatment furnace with internal air exhaust holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641708A (en) * | 2017-09-20 | 2018-01-30 | 河北首燕机械股份有限公司 | A kind of heat-resisting resistance to deformation carbon set roller |
| CN110395882A (en) * | 2019-07-12 | 2019-11-01 | 彩虹（合肥）液晶玻璃有限公司 | Draw side axis component and edge machine |
-
2013
- 2013-03-04 CN CN 201320098139 patent/CN203128613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641708A (en) * | 2017-09-20 | 2018-01-30 | 河北首燕机械股份有限公司 | A kind of heat-resisting resistance to deformation carbon set roller |
| CN110395882A (en) * | 2019-07-12 | 2019-11-01 | 彩虹（合肥）液晶玻璃有限公司 | Draw side axis component and edge machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140304 |