CN109879284B - Floating type hearth structure - Google Patents
Floating type hearth structure Download PDFInfo
- Publication number
- CN109879284B CN109879284B CN201910242278.2A CN201910242278A CN109879284B CN 109879284 B CN109879284 B CN 109879284B CN 201910242278 A CN201910242278 A CN 201910242278A CN 109879284 B CN109879284 B CN 109879284B
- Authority
- CN
- China
- Prior art keywords
- furnace
- furnace body
- vessel
- floating
- cooling zone
- Prior art date
- 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.)
- Active
Links
Landscapes
- Furnace Details (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The application relates to a floating hearth structure which comprises a support, a furnace body, a boat pusher and a hydrogen inlet device arranged on the furnace body, wherein the furnace body is arranged on the support, the boat pusher pushes a vessel containing materials to be treated into the furnace body, a plurality of furnace tubes are arranged in the furnace body along the pushing direction of the vessel, and a positioning block is arranged between any two adjacent furnace tubes. The application has the advantages of good temperature uniformity, high yield, low energy consumption per unit yield, long service cycle and low production cost; and the cooling is carried out by adopting two cooling modes, so that the product quality is good.
Description
Technical Field
The application relates to the field of metal powder carbonization, in particular to a floating hearth structure.
Background
The carbonization furnace is not a carbonization furnace, but a heating element of a low-temperature carbonization furnace adopts heat-resistant electric wires, and a high-temperature carbonization furnace adopts a multi-purpose graphite heating body as a heat source to carbonize hard alloy, and belongs to a direct heating furnace. When the carbonization process is carried out on the tungsten powder, the hydrogen is introduced into a carbonization furnace for carbonization.
At present, the largest furnace type is a continuous molybdenum wire furnace with the heating area length of 2600mm in the market, and as the furnace hearth in the molybdenum wire furnace is built by corundum products or is formed by splicing a plurality of corundum furnace tubes, when heating is carried out, the corundum products or the furnace tubes can be heated and expanded to be long, when heating is stopped, the furnace tubes can shrink, the service life of the furnace hearth can be seriously reduced after multiple cycles, the furnace hearth materials in the furnace body are required to be replaced in the industry in 10 to 12 months, and the maintenance cost is high; meanwhile, the thermal expansion and contraction do not have treatment measures, the length of a heating area of a hearth is limited, the capacity of equipment is limited finally, and the unit energy consumption cannot be reduced. In addition, a larger gap exists between the two furnace tubes, the gap can reach 100mm, and the gap is uneven, so that the materials contained in the vessels flowing through the furnace tubes are not uniform and thorough due to uneven heating, and the effect is not high; poor temperature uniformity and unstable quality.
Moreover, the cost of a carbonization furnace production line is at least more than million, and if the furnace body structure is not heated uniformly for a long time, the whole furnace body structure must be replaced, and the replacement cost is extremely high as a core component of the carbonization production line.
In addition, the existing carbonization furnace is directly cooled by adopting a water cooling mode after being heated by a furnace body, and the strength and the performance of the processed materials are influenced to a certain extent due to the rapid change of the temperature.
Therefore, the floating hearth structure with high yield, low unit energy consumption, good temperature uniformity, good product quality, long service cycle and low production cost is designed for overcoming the defects of the technology, and the problem to be solved by the inventor is solved.
Disclosure of Invention
Aiming at the problems, the application provides a floating hearth structure which has the advantages of high yield, low unit energy consumption, good temperature uniformity, good product quality, long service cycle and low production cost.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a floating furnace structure, includes support, furnace body, push away the boat ware and locates the hydrogen inlet device on the furnace body, the furnace body is installed on the support, push away the boat ware and will hold the household utensils of waiting to handle the material and push into in the furnace body, follow in the furnace body household utensils push into the direction and are equipped with several boiler tubes, be equipped with a locating piece between arbitrary two adjacent boiler tubes.
Preferably, the cross section of the positioning block along the axial center line of the furnace tube is of a concave structure, and the concave structure comprises a bottom plate and two bosses which are arranged at the two bottom plate ends and extend upwards, and the convex openings of the two bosses are oppositely arranged.
Preferably, the axial center line of the furnace tube is perpendicular to the central axis of the bottom plate, and is located on the same plane.
Preferably, the two bosses are positioned on the surface of the bottom plate and are provided with a vessel axial moving area connected with the bottom ends of the bosses, and the plane of the vessel axial moving area is higher than the surface of the bottom plate.
Preferably, radial height protection protrusions for the vessel to pass through are arranged at one end, close to the axial moving area of the vessel, of the opposite sides of the two raised openings.
Preferably, the positioning block is fixed in position and is detachably arranged in the furnace body.
Preferably, the distance from the side of the boss to the side of the boss near the side of the boss is greater than 5mm.
Preferably, the outer ring of the channel of the furnace tube is provided with heat insulation materials, and the heat insulation materials are of a mixed structure of alumina hollow sphere bricks and high-purity alumina fibers.
Preferably, the furnace body is of a cube structure, and the length of the furnace body is 10m.
Preferably, the carbonization furnace is further provided with a cooling zone connected with the tail part of the furnace body and used for cooling the vessel, the cooling zone is divided into an air cooling zone and a water cooling zone, and the vessel heated by the furnace tube flows to the air cooling zone for primary cooling and then is subjected to secondary cooling through the water cooling zone.
Compared with the prior art, the application has the following beneficial effects:
1. the positioning block provided by the application can control the telescopic floating of each furnace tube in a range of interval, so that the deformation gap of the furnace tube is dispersed, and a larger gap is not reserved, thereby ensuring that the material is heated uniformly and the quality is stable;
2. the furnace tube structure breaks through the limit of the length of the heating zone of the hearth, so that the length of the heating zone is increased without limitation, the productivity of equipment is finally broken through, the unit energy consumption of the equipment is reduced, and the economic benefit is obvious; solves the technical problem that the length of the heating area in the prior art can not be increased;
3. the furnace tube has long service cycle and low production cost; replaceable;
4. the application is provided with two cooling modes of air cooling and water cooling, so that high-temperature materials are cooled layer by layer, and the problem of quality deficiency caused by temperature quenching is solved.
Drawings
FIG. 1 is a schematic view of the structure of the present application with a cover broken away;
FIG. 2 is a top view (shown partially) of the roof of the present application;
FIG. 3 is a top view (shown partially) of the application with the cover broken away;
FIG. 4 is a cross-sectional view (shown in part) taken along line B-B of FIG. 3;
FIG. 5 is a schematic view of the positioning block in the present application;
fig. 6 is a front view of fig. 5;
fig. 7 is a top view of fig. 5.
Detailed Description
The present application will be described in detail below with reference to fig. 1-7, wherein the exemplary embodiments and descriptions of the present application are provided for illustration of the present application, but are not intended to be limiting.
The utility model provides a floating hearth structure, includes support 6, furnace body 7, push away boat 8 and locates the hydrogen device that advances on the furnace body, the furnace body is installed on the support, push away the boat ware and will hold the household utensils 9 of waiting to process the material and push into in the furnace body, follow in the furnace body household utensils push into the direction and be equipped with several boiler tubes 12, be equipped with locating piece 10 between arbitrary two adjacent boiler tubes. The shape structure of the positioning block can be set at will, and only the function of separating the two furnace tubes is needed, so that the expansion and contraction of each furnace tube is fixed in a range of interval, a large gap is not reserved, and the material is heated uniformly and has stable quality. Therefore, each positioning block structure realizing the function is within the protection scope of the application. A detailed description will be given below with reference to one specific embodiment of the positioning block:
the cross section of the positioning block 10 along the axial center line of the furnace tube is of a concave structure, and the concave structure comprises a bottom plate 1 and two bosses 2 which are arranged at the two bottom plate ends and extend upwards, and two boss bosses 3 are oppositely arranged. The convex opening can be abutted against the end face of the furnace tube when the furnace tube is heated and extended, and can limit the furnace tube within a fixed area when the furnace tube is contracted.
The axial center line of the furnace tube is perpendicular to the central axis of the bottom plate and is positioned on the same plane. The axial center line of the furnace tube and the center line of the bottom plate are positioned on the same plane, so that the positioning block and the furnace tube are designed in a unified manner, and vessels on the furnace tube can pass through the positioning block and enter the next furnace tube for heating without obstruction.
The two bosses are positioned on the surface of the bottom plate and are provided with a vessel axial moving area 4 connected with the bottom end of the boss, and the plane of the vessel axial moving area is higher than the surface of the bottom plate 1. The arrangement is used for forming a fixed area range of the furnace tube expansion and contraction.
And radial height protection protrusions 5 for the vessels to pass through are arranged at one ends of the opposite sides of the two raised openings, which are close to the axial moving area of the vessels. The height of the radial height protection bulge is consistent with the height of the protection bulge arranged on the furnace tube, and the radial height protection bulge is used for protecting a heated vessel.
The positioning block is fixed in position and is detachably arranged in the furnace body. The detachable arrangement can be replaced conveniently, so that the cost is saved.
The distance from one side of the bulge to one side of the boss close to one side of the bulge is more than 5mm. Because each furnace tube can be shortened by about 10mm, the distance from one side of the boss on one side of the boss to one side of the boss can be set to be more than 5mm, and the furnace tube is convenient to extend and shorten.
The outer ring of the channel of the furnace tube is provided with a heat insulation material 11. The heat insulation material is used for heat insulation in the furnace body. The heat insulation material is a mixed structure of alumina hollow sphere bricks and high-purity alumina fibers.
The furnace body is of a cube structure, and the length of the furnace body is 10m.
The carbonization furnace is also provided with a cooling zone connected with the tail part of the furnace body and used for cooling the vessel, the cooling zone is divided into an air cooling zone 13 and a water cooling zone 14, and the vessel heated by the furnace tube flows to the air cooling zone for primary cooling and then is subjected to secondary cooling through the water cooling zone. Said application has two cooling modes of air cooling and water cooling, so that the high-temp. material can be cooled layer by layer, and the problem of quality deficiency resulted from temp. quenching can be solved
In the implementation process, a vessel containing materials to be processed is pushed into a furnace body of a carbonization furnace through the boat pusher, a furnace tube starts to be heated, heat is conducted to the vessel to carbonize the materials in the vessel such as tungsten powder, and the like, in the carbonization process, hydrogen is always introduced into the furnace body through a hydrogen inlet device to react, a plurality of vessels continuously run in the axial direction of the furnace tube and are continuously heated, the vessels heated by the furnace tubes flow to an air cooling area to be cooled once, and then the vessels are cooled again through a water cooling area to flow out. After the heating is finished, the carbonization furnace can stop heating, because a plurality of furnace tubes in the furnace body shrink, because positioning blocks are arranged between any two adjacent furnace tubes, the furnace tubes can only move in the area formed between the two adjacent positioning blocks, and the problem that the temperature uniformity is poor due to the fact that a larger furnace tube-free range is formed due to the fact that the plurality of furnace tubes shrink is avoided.
It is worth to say that the floating hearth structure is not only applied to a push boat type carbonization furnace for producing ultrafine tungsten carbide powder, but also applied to a sintering furnace, a heat treatment furnace, a high temperature furnace and the like.
The foregoing has described in detail the technical solutions provided by the embodiments of the present application, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present application, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present application; meanwhile, as for those skilled in the art, according to the embodiments of the present application, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present application.
Claims (6)
1. A floating hearth structure is characterized in that: the device comprises a bracket (6), a furnace body (7), a boat pusher (8) and a hydrogen inlet device arranged on the furnace body, wherein the furnace body is arranged on the bracket, the boat pusher pushes a vessel (9) containing materials to be processed into the furnace body, a plurality of furnace tubes (12) are arranged in the furnace body along the pushing direction of the vessel, and a positioning block (10) is arranged between any two adjacent furnace tubes;
the cross section of the positioning block (10) along the axial center line of the furnace tube is of a concave structure, the concave structure comprises a bottom plate (1) and two bosses (2) which are arranged at two ends of the bottom plate and extend upwards, and the bosses (3) of the two bosses are oppositely arranged;
the two convex openings (3) are positioned on the surface of the bottom plate (1) and are provided with a vessel axial moving area (4) connected with the bottom ends of the convex openings, and the plane of the vessel axial moving area (4) is higher than the surface of the bottom plate (1);
one end of the opposite sides of the two raised openings, which is close to the axial moving area of the vessel, is provided with a radial height protection protrusion (5) for the vessel to pass through;
the positioning block can control the telescopic floating of each furnace tube, and the deformation gap of the furnace tube is dispersed.
2. A floating hearth structure as defined in claim 1, wherein: the axial center line of the furnace tube is perpendicular to the central axis of the bottom plate and is positioned on the same plane.
3. A floating hearth structure as defined in claim 1, wherein: the positioning block is fixed in position and is detachably arranged in the furnace body.
4. A floating hearth structure as defined in claim 1, wherein: the outer ring of the channel of the furnace tube is provided with heat insulation materials (11), and the heat insulation materials are of a mixed structure of alumina hollow sphere bricks and high-purity alumina fibers.
5. A floating hearth structure as defined in claim 1, wherein: the furnace body is of a cube structure, and the length of the furnace body is 10m.
6. A floating hearth structure as defined in claim 1, wherein: the furnace tube furnace is characterized by further comprising a cooling zone connected with the tail of the furnace body and used for cooling the vessel, wherein the cooling zone is divided into an air cooling zone (13) and a water cooling zone (14), and the vessel heated by the furnace tube flows to the air cooling zone for primary cooling and then is subjected to secondary cooling through the water cooling zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910242278.2A CN109879284B (en) | 2019-03-28 | 2019-03-28 | Floating type hearth structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910242278.2A CN109879284B (en) | 2019-03-28 | 2019-03-28 | Floating type hearth structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109879284A CN109879284A (en) | 2019-06-14 |
| CN109879284B true CN109879284B (en) | 2023-10-20 |
Family
ID=66934860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910242278.2A Active CN109879284B (en) | 2019-03-28 | 2019-03-28 | Floating type hearth structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109879284B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214792U (en) * | 1987-11-02 | 1988-12-21 | 江西省地质矿产局赣南地质调查大队 | Sectional revolving type rare earths continuous furnace |
| DE19854941A1 (en) * | 1998-11-28 | 2000-05-31 | Osa Ofensysteme Aus Dem Allgae | Furnace pipe connection between furnace pipe and closure brick which allows swivel movement to compensate for staggered arrangements |
| CN2709905Y (en) * | 2003-11-17 | 2005-07-13 | 株洲科泰感应加热设备有限公司 | Bell multi-firepot induction heating furnace |
| CN1766510A (en) * | 2005-09-12 | 2006-05-03 | 北京科技大学 | Ventilated forced drainage type nano tungsten powder reducing furnace for industrial use |
| CN101788227A (en) * | 2010-03-09 | 2010-07-28 | 株洲弗拉德科技有限公司 | Induction heating ultra-high temperature continuous carbonization furnace |
| CN202204315U (en) * | 2011-09-06 | 2012-04-25 | 株洲迪远硬质合金工业炉有限公司 | Double-furnace-door boat entering and exiting device |
| CN203421972U (en) * | 2013-06-19 | 2014-02-05 | 株洲迪远硬质合金工业炉有限公司 | Automatic boat feeding and discharging device |
| CN203478979U (en) * | 2013-07-02 | 2014-03-12 | 中国寰球工程公司 | Sealing heat insulation structure for part, extending out of hearth, of furnace tube |
| CN203561197U (en) * | 2013-10-17 | 2014-04-23 | 浙江泛泰仪器有限公司 | Vacuum pipe type reaction furnace device |
| CN104833204A (en) * | 2015-05-13 | 2015-08-12 | 煤炭科学技术研究院有限公司 | Rotary kiln for carbon molecular sieve continuous production |
| CN105674729A (en) * | 2016-03-28 | 2016-06-15 | 苏州汇科机电设备有限公司 | High-temperature atmosphere rotary kiln with lining pipe of hexagonal structure |
| CN106931774A (en) * | 2015-12-31 | 2017-07-07 | 泰州泰瑞电子专用设备制造有限公司 | A kind of high temperature furnace pipe |
| CN207268457U (en) * | 2017-10-23 | 2018-04-24 | 黑龙江省华能电力技术有限公司 | It is a kind of to be used for boiler smoking mouth and the seal assembly of high temperature boiler flue gas tube junction |
| CN210193423U (en) * | 2019-03-28 | 2020-03-27 | 湖南信之材料工程技术有限责任公司 | Floating furnace structure |
-
2019
- 2019-03-28 CN CN201910242278.2A patent/CN109879284B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214792U (en) * | 1987-11-02 | 1988-12-21 | 江西省地质矿产局赣南地质调查大队 | Sectional revolving type rare earths continuous furnace |
| DE19854941A1 (en) * | 1998-11-28 | 2000-05-31 | Osa Ofensysteme Aus Dem Allgae | Furnace pipe connection between furnace pipe and closure brick which allows swivel movement to compensate for staggered arrangements |
| CN2709905Y (en) * | 2003-11-17 | 2005-07-13 | 株洲科泰感应加热设备有限公司 | Bell multi-firepot induction heating furnace |
| CN1766510A (en) * | 2005-09-12 | 2006-05-03 | 北京科技大学 | Ventilated forced drainage type nano tungsten powder reducing furnace for industrial use |
| CN101788227A (en) * | 2010-03-09 | 2010-07-28 | 株洲弗拉德科技有限公司 | Induction heating ultra-high temperature continuous carbonization furnace |
| CN202204315U (en) * | 2011-09-06 | 2012-04-25 | 株洲迪远硬质合金工业炉有限公司 | Double-furnace-door boat entering and exiting device |
| CN203421972U (en) * | 2013-06-19 | 2014-02-05 | 株洲迪远硬质合金工业炉有限公司 | Automatic boat feeding and discharging device |
| CN203478979U (en) * | 2013-07-02 | 2014-03-12 | 中国寰球工程公司 | Sealing heat insulation structure for part, extending out of hearth, of furnace tube |
| CN203561197U (en) * | 2013-10-17 | 2014-04-23 | 浙江泛泰仪器有限公司 | Vacuum pipe type reaction furnace device |
| CN104833204A (en) * | 2015-05-13 | 2015-08-12 | 煤炭科学技术研究院有限公司 | Rotary kiln for carbon molecular sieve continuous production |
| CN106931774A (en) * | 2015-12-31 | 2017-07-07 | 泰州泰瑞电子专用设备制造有限公司 | A kind of high temperature furnace pipe |
| CN105674729A (en) * | 2016-03-28 | 2016-06-15 | 苏州汇科机电设备有限公司 | High-temperature atmosphere rotary kiln with lining pipe of hexagonal structure |
| CN207268457U (en) * | 2017-10-23 | 2018-04-24 | 黑龙江省华能电力技术有限公司 | It is a kind of to be used for boiler smoking mouth and the seal assembly of high temperature boiler flue gas tube junction |
| CN210193423U (en) * | 2019-03-28 | 2020-03-27 | 湖南信之材料工程技术有限责任公司 | Floating furnace structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109879284A (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210001595U (en) | Structure of continuous graphitizing furnace using carbon raw materials | |
| CN104964559A (en) | Bottom ring for submerged arc furnace and manufacturing method for bottom ring | |
| CN110822894B (en) | Roller way sintering furnace with uniform hearth temperature | |
| CN210193423U (en) | Floating furnace structure | |
| CN109879284B (en) | Floating type hearth structure | |
| CN201334426Y (en) | Compound electrode of 12t high borosilicate glass electric melting furnace | |
| CN203021698U (en) | Continuous graphitization superhigh-temperature tube furnace | |
| CN109945201A (en) | A kind of plasma non-metallic material melting plant of continuous feed and discharge | |
| CN210683653U (en) | Metal cooling reaction section, carbon black production device and carbon black production equipment | |
| CN204281803U (en) | A kind of scalpel thermal treatment unit | |
| CN206019354U (en) | Calcining furnace base plate water cooling plant | |
| CN101520096A (en) | High temperature valve | |
| CN201867077U (en) | High-temperature treatment furnace heating device | |
| CN107952401B (en) | Suspension bed hydrogenation cold wall reactor | |
| CN218379419U (en) | Cracking furnace with anti-coking function and acetylene carbon black cracking reaction equipment | |
| CN212692546U (en) | Graphite electrode of electric arc furnace | |
| CN110371966A (en) | A kind of carbon raw materials continuous graphitizing furnace construction and method for graphitizing | |
| CN113847818B (en) | Electrode for rapid hot-pressed sintering | |
| CN212741431U (en) | Energy-saving high-temperature furnace for heat treatment | |
| CN220322000U (en) | Smelting furnace structure for producing high-quality quartz ingot | |
| CN212315565U (en) | Sulfuric acid blanking pipe for Mannheim furnace | |
| CN217236471U (en) | Esse furnace reaction zone conical section curved surface cast copper water jacket | |
| CN113683290B (en) | Glass fiber kiln structure | |
| CN219301321U (en) | Submerged arc furnace body cooling device | |
| CN219502689U (en) | Energy-saving VDF cracking furnace system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |