CN1049486C - Variable-pitch internal spiral rotating heat treatment furnace pipe - Google Patents
Variable-pitch internal spiral rotating heat treatment furnace pipe Download PDFInfo
- Publication number
- CN1049486C CN1049486C CN 94112618 CN94112618A CN1049486C CN 1049486 C CN1049486 C CN 1049486C CN 94112618 CN94112618 CN 94112618 CN 94112618 A CN94112618 A CN 94112618A CN 1049486 C CN1049486 C CN 1049486C
- Authority
- CN
- China
- Prior art keywords
- heat treatment
- furnace tube
- temperature
- treatment furnace
- materials
- 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.)
- Expired - Fee Related
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- Muffle Furnaces And Rotary Kilns (AREA)
- Tunnel Furnaces (AREA)
Abstract
The present invention belongs to a powder and granule material heat treatment furnace tube which aims to overcome the technical defects that the existing conveyer belt type annealing furnace can not satisfy the requirements of temperature rise, thermal insulation, temperature drop, etc. of heat treatment materials, the temperature of the heat treatment materials are not uniform, etc. The present invention is characterized in that the furnace tube is in a rotating state in working, an inner screw is arranged on the inner wall of the furnace tube, and the inequality of screw pitches is used for controlling the advance speed of the heat treatment materials in different positions in the furnace tube so as to control the speed rate of temperature rise, heat preservation and temperature drop of the heat treatment materials in a furnace and ensure uniform temperature of the materials. The powder and granule material heat treatment furnace tube has the advantages of simple structure, etc., and the powder and granule material heat treatment furnace tube is an ideal heat treatment furnace tube.
Description
The invention belongs to a kind of powder material heat treatment boiler tube.
What as everyone knows, before the powder material is heat-treated use is the conveyor type annealing furnace.Though this body of heater can be realized continuous material transfer and discharging to heat treatment material, but limit owing to be subjected to furnace binding, can't on technology, effectively control by intensification and the rate of temperature fall to heat treatment material, and do not satisfy the uniformity of material temperature in the stove, institute is so that heat treated effect is not very good.The present invention produces for the deficiency that overcomes above-mentioned conveyor type heat-treatment furnace.
Technical essential of the present invention just is that it is a kind of heat treatment furnace pipe of rotation; Have inside spin (3) at boiler tube inwall (1), different parts pitch varies in size in the boiler tube.Design the size of different parts pitch according to the requirement of the furnace charge speed of travel.
Below in conjunction with accompanying drawing structure of the present invention and working method are carried out more detailed explanation.
(1) is the boiler tube inwall among the figure; (2) and (4) be the resistance heating body that is contained on the outer tube wall, (3) are interior pitch, its big I according to technology to heat treatment material heat up, the requirement of insulation and cooling decides; (5) be water collar; (6) be the heat treatment furnace charge.The heating and cooling mode also can adopt other method.
When the present invention worked, boiler tube was in the same direction as, rotated with certain speed.Furnace charge is promoted to travel forward by spiral after entering boiler tube.Furnace charge is owing to be in different positions, and its pace is different, and this is different decision of pitch owing to the inside spin of different parts.For example, two ends are that the pitch of charging aperture and discharging opening position inside spin is relatively large, and institute is so that heat treatment powder material pace is bigger; Promptly heat up and the temperature fall time shortening, speed is accelerated.At the boiler tube middle part, pitch is less, and this just makes that heat treatment powder material pace is slower, the temperature retention time lengthening.Also be in rotation status just because of the present invention, institute is so that furnace charge has comparatively even temperature.Can find out that from accompanying drawing the present invention can conveniently adopt resistance heated or mode such as water collar is housed at the pipe outer wall at the different parts of boiler tube and heat up or lower the temperature, to satisfy technological requirement.
When practical application, can install vacuum chamber additional at two ends of the present invention, allow feed hopper and discharge bucket join with vacuum chamber respectively, be in vacuum state, make each position of charging, intensification, insulation and discharging form a complete powder vacuum heat treatment furnace.According to actual needs, also application of the present invention can be extended to technical fields such as chemical materials heat treatment.
The present invention heats up, be incubated, fall owing to can effectively control the heat treatment of powder material The speed of temperature makes its heat treatment temperature even, and has advantages of simple structure and simple, so It is a kind of comparatively ideal powder material heat treatment boiler tube.
Claims (1)
1. a rotating heat treatment furnace pipe is characterized in that boiler tube inwall (1) has inside spin (3), and different parts pitch varies in size in the boiler tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112618 CN1049486C (en) | 1994-11-16 | 1994-11-16 | Variable-pitch internal spiral rotating heat treatment furnace pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112618 CN1049486C (en) | 1994-11-16 | 1994-11-16 | Variable-pitch internal spiral rotating heat treatment furnace pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1123906A CN1123906A (en) | 1996-06-05 |
| CN1049486C true CN1049486C (en) | 2000-02-16 |
Family
ID=5036290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94112618 Expired - Fee Related CN1049486C (en) | 1994-11-16 | 1994-11-16 | Variable-pitch internal spiral rotating heat treatment furnace pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049486C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1217318A1 (en) * | 2000-12-19 | 2002-06-26 | Sea Marconi Technologies Di Wander Tumiatti S.A.S. | Plant for the thermal treatment of material and operation process thereof |
| CN104422274B (en) * | 2013-08-19 | 2016-09-28 | 丹东玉龙镁业有限公司 | A kind of heating in medium frequency calcining furnace |
-
1994
- 1994-11-16 CN CN 94112618 patent/CN1049486C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1123906A (en) | 1996-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |