CN2893595Y - Large controllable atmosphere shaft type furnace - Google Patents
Large controllable atmosphere shaft type furnace Download PDFInfo
- Publication number
- CN2893595Y CN2893595Y CN 200620116104 CN200620116104U CN2893595Y CN 2893595 Y CN2893595 Y CN 2893595Y CN 200620116104 CN200620116104 CN 200620116104 CN 200620116104 U CN200620116104 U CN 200620116104U CN 2893595 Y CN2893595 Y CN 2893595Y
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- furnace
- radiant
- radiant tube
- atmosphere
- burner hearth
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Abstract
The utility model relates to a large-scale controllable atmosphere vertical-pit furnace. The utility model comprises a furnace-casing, a furnace-liner, a furnace cover which appears as a round-form and covers on the top of the furnace casing, high-temperature fans, radiant tubes and a radiant-tube bracket. The furnace-casing can be shaped into a quadrangle, a hexagon or an octagon. The radiant tube bracket is arranged in the hearth, and the radiant tube used for heating can be horizontally inserted into the hearth from the outside and the inserted end of the radiant tube is arranged on the radiant-tube bracket. The high-temperature fan is respectively arranged on the side wall of the atmosphere furnace according to the different furnace forms. The technical plan of the utility model is that the radiant tubes can be conveniently fixed in the hearth; controlling the heating by the radiant tubes up-and-down arranged in different positions can meet the actual heat-supplying requirement of the atmosphere furnace; the high-temperature fans arranged horizontally can make the cementite and nitrogen-air further symmetrically flow along a certain direction, which can dispense with the muffle tank and air tube, reduce the cost of the atmosphere furnace and facilitate the maintaining and repairing to the atmosphere furnace.
Description
Technical field
The utility model relates to a kind of Equipment for Heating Processing, refers in particular to a kind of large-scale controlled atmosphere shaft furnace with horizontal plug in radiant tube and side circulating fan.
Background technology
The carburizer that big machinery part heat treatment is at present used and the heating element heater of nitriding furnace be usually by the resistance wire coiled, and be fixing in some way or be installed on the inboard wall of burner hearth of shaft furnace, perhaps hangs on the inboard wall of burner hearth with undulatory resistive band.In order to prevent that carbon atom or the nitrogen-atoms in the nitriding atmosphere in the carburizing atmosphere are seeped on resistance wire or the resistive band, prevent that it from causing electrical short-circuit piling up on the resistance wire or on the joint.Adopt Muffle pot that carburized workpiece and heating element heater are separated for many years on the engineering,, guarantee the stove operate as normal to prevent that heating element heater from by carburizing or nitriding, prolonging its service life.But for large-scale shaft furnace, the stove diameter is big more, and the size of the dark more Muffle pot of the degree of depth is then big more, and it is big more to make required heat resisting steel amount.Under the condition of high temperature, the distortion of the big more Muffle pot of size is serious more.In order to cancel Muffle pot, people adopt heat resisting steel to seal back formation radiant tube the outside of various heating element heaters and vertically insert the burner hearth outside, realize that heating also prevents that carbon atom or nitrogen-atoms are seeped on the heater; But because radiant tube is evenly to distribute vertically at the heat that length direction produces, with the heat demand of stove reality, the two ends power attenuation is big up and down, and middle little situation is inconsistent, thereby causes furnace temperature inhomogeneous easily.
In order to make the atmosphere furnace atmosphere even, large-scale in the prior art shaft furnace is equipped with circulating fan at an upper portion thereof, in the workspace ventilating duct is housed, ventilating duct is because of at high temperature working for a long time, be easy to generate distortion and cause damage, and it also consumes a large amount of heat-resisting steels, has improved the cost of atmosphere furnace, has increased the job costs of atmosphere furnace simultaneously.
Summary of the invention
The large-scale controlled atmosphere shaft furnace of the utility model is horizontally disposed with by the radiant tube that heating element heater is constituted, and changes the contour structures of atmosphere furnace and the operating position of circulating fan, has save ventilating duct, thereby has remedied the deficiencies in the prior art.
The technical scheme in the invention for solving the above technical problem is: a kind of large-scale controlled atmosphere shaft furnace, it includes furnace shell, furnace lining, bell, high-temperature blower, described bell is circular, spiral-lock is at the furnace shell top, it also includes radiant tube, radiant tube carriage, and the profile of described furnace shell can be made quadrangle, hexagon or octagon; Be provided with the radiant tube carriage in the described burner hearth, the radiant tube of heating usefulness can level is horizontal outside furnace shell be inserted in the burner hearth, and the insertion end of its radiant tube is inserted on the radiant tube carriage; Described high-temperature blower is separately positioned on the side wall of atmosphere furnace according to the shape difference of stove.
Describedly be inserted into radiant tube in the burner hearth, in its burner hearth, evenly distribute up and down along each inner surface according to power demand.
The described high-temperature blower that is arranged on each side wall of atmosphere furnace can be several, and is evenly distributed on its side wall by above-below direction.
The beneficial effect of the large-scale controlled atmosphere shaft furnace of the utility model, be to pass through the technical program, radiant tube can be fixed in the burner hearth easily, and by the thermal control that adds to the radiant tube of diverse location up and down, realize the actual heat demand of atmosphere furnace, the high-temperature blower that horizontal direction is provided with, carburizing or nitrogen are flowed along certain direction, make it more even, guarantee product quality, also save Muffle pot simultaneously, ventilating duct, saved a large amount of heat-resisting steels, reduced the cost of atmosphere furnace, the design that the level of radiant tube is inserted greatly facilitates the maintenance and repair to atmosphere furnace.
Description of drawings
Fig. 1 is a horizontal sectional structure schematic diagram of the present utility model.
Fig. 2 is vertical sectional structure schematic diagram of the present utility model.
Among the figure, 1 heat resisting steel base, 2 burner hearths, 3 radiant tube carriages, 4 radiant tubes, 5 bells, 6 furnace linings, 7 furnace shells, 8 high-temperature blowers, 9 workpiece.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is further described.
As shown in FIG., a kind of large-scale controlled atmosphere shaft furnace, it includes furnace shell 7, furnace lining 6, bell 5, high-temperature blower 8, described bell 5 is circular, spiral-lock is at furnace shell 7 tops, and it also includes radiant tube 4, radiant tube carriage 3, and the profile of described furnace shell 7 can be made quadrangle, hexagon or octagon; Be provided with radiant tube carriage 3 in the described burner hearth 2, the radiant tube 4 of heating usefulness can level is horizontal outside furnace shell 7 be inserted in the burner hearth 2, and the insertion end of its radiant tube 4 is inserted on the radiant tube carriage 3; Described high-temperature blower 8 is separately positioned on the side wall of atmosphere furnace according to the shape difference of stove.
Describedly be inserted into radiant tube 4 in the burner hearth 2 according to power demand.In burner hearth 2, evenly distribute up and down along each inner surface; The described high-temperature blower 8 that is arranged on each side wall of atmosphere furnace can be 3, and is evenly distributed on its side wall by above-below direction.
At burner hearth 2 inner bottom parts, be provided with heat resisting steel base 1 among the embodiment of the present utility model, its processed workpiece 9 is placed on the heat resisting steel base.
Claims (3)
1. one kind large-scale controlled atmosphere shaft furnace, it includes furnace shell, furnace lining, bell, high-temperature blower, described bell is circular, spiral-lock is characterized in that at the furnace shell top: it also includes radiant tube, radiant tube carriage, and the profile of described furnace shell can be made quadrangle, hexagon or octagon; Be provided with the radiant tube carriage in the described burner hearth, the radiant tube of heating usefulness can level is horizontal outside furnace shell be inserted in the burner hearth, and the insertion end of its radiant tube is inserted on the radiant tube carriage; Described high-temperature blower is separately positioned on the side wall of atmosphere furnace according to the shape difference of stove.
2. large-scale controlled atmosphere shaft furnace according to claim 1 is characterized in that: describedly be inserted into radiant tube in the burner hearth according to power demand, evenly distribute up and down along each inner surface in its burner hearth.
3. large-scale controlled atmosphere shaft furnace according to claim 1 is characterized in that: the described high-temperature blower that is arranged on each side wall of atmosphere furnace can be several, and is evenly distributed on its side wall by above-below direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116104 CN2893595Y (en) | 2006-05-10 | 2006-05-10 | Large controllable atmosphere shaft type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116104 CN2893595Y (en) | 2006-05-10 | 2006-05-10 | Large controllable atmosphere shaft type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893595Y true CN2893595Y (en) | 2007-04-25 |
Family
ID=38061756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620116104 Expired - Lifetime CN2893595Y (en) | 2006-05-10 | 2006-05-10 | Large controllable atmosphere shaft type furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893595Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428336A (en) * | 2009-05-19 | 2012-04-25 | 新日本制铁株式会社 | Kiln, method for producing refractory, and refractory block |
| JP2016126899A (en) * | 2014-12-26 | 2016-07-11 | Ｄｏｗａサーモテック株式会社 | Heater unit and carburization furnace |
-
2006
- 2006-05-10 CN CN 200620116104 patent/CN2893595Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428336A (en) * | 2009-05-19 | 2012-04-25 | 新日本制铁株式会社 | Kiln, method for producing refractory, and refractory block |
| CN102428336B (en) * | 2009-05-19 | 2013-12-11 | 新日铁住金株式会社 | Kiln, method for producing refractory, and refractory block |
| US9719148B2 (en) | 2009-05-19 | 2017-08-01 | Nippon Steel & Sumitomo Metal Corporation | Furnace, refractory installing method, and refractory block |
| JP2016126899A (en) * | 2014-12-26 | 2016-07-11 | Ｄｏｗａサーモテック株式会社 | Heater unit and carburization furnace |
| CN107006079A (en) * | 2014-12-26 | 2017-08-01 | 同和热处理技术株式会社 | Unit heater and carburizer |
| US10499460B2 (en) | 2014-12-26 | 2019-12-03 | Dowa Thermotech Co., Ltd. | Heater unit and carburizing furnace |
| CN107006079B (en) * | 2014-12-26 | 2020-06-26 | 同和热处理技术株式会社 | Heater unit and carburizing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AIXIELIN HEAT TREATMENT SYSTEM ( BEIJING ) CO., L Free format text: FORMER OWNER: AICHELIN INDUSTRIAL FURNACE ENGINEERING (BEIJING) CO., LTD. Effective date: 20081010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081010 Address after: Shahe Industrial Park, Beijing, Changping District, China: 102249 Patentee after: Aixielin Heat Treatment System (Beijing) Co.Ltd Address before: Wanquan Beijing Road, Haidian District No. 68 Zijin estate No. 7 Building Room 809, zip code: 100086 Patentee before: Aixielin Industrial Furnace Engineering (Beijing) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070425 |
|
| EXPY | Termination of patent right or utility model |