CN204111823U - A kind of atmosphere box-type furnace - Google Patents
A kind of atmosphere box-type furnace Download PDFInfo
- Publication number
- CN204111823U CN204111823U CN201420605323.9U CN201420605323U CN204111823U CN 204111823 U CN204111823 U CN 204111823U CN 201420605323 U CN201420605323 U CN 201420605323U CN 204111823 U CN204111823 U CN 204111823U
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- thermal insulation
- inner bag
- guide part
- heater inner
- driving
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Abstract
The utility model relates to equipment for Heating Processing field, a kind of atmosphere box-type furnace, comprises thermal insulation furnace body, heating unit, drive unit and body of heater inner bag; Drive unit comprises the driving fan blade being in thermal insulation furnace body inner upper, and the driving blower fan be connected with driving fan blade, and heating unit and body of heater inner bag are all in thermal insulation furnace body, and body of heater inner bag is in and drives below fan blade; The return air channel for the shielding gas that leads is provided with in thermal insulation furnace body, return air channel comprises for limiting the first guide part of shielding gas uniflux driving blade driving, and for the second guide part of the shielding gas uniflux that limits body of heater inner bag periphery; Second guide part is in the first guide part downstream, the first guide part offers the air-flow through hole for the protection of gas backstreaming.This atmosphere box-type furnace is made the directed flow of internal protection gas by return air channel, is evenly distinguished, and makes powder thermal treatment even, and solves the technical problem that the thermal insulation furnace body internal gas flow direction exists dead angle.
Description
Technical field
The utility model relates to equipment for Heating Processing field, particularly relates to a kind of atmosphere box-type furnace.
Background technology
Atmosphere box-type furnace treats when processing powder carries out high-temperature heating treatment to make it can not produce the protection stove of oxidation and decarbonization phenomenon.Existing atmosphere box-type furnace as shown in Figure 1, includes thermal insulation furnace body 1, and is arranged on body of heater inner bag 4, the heating unit 2 of thermal insulation furnace body inside and drives fan blade 31; Wherein, heating unit heats the shielding gas in thermal insulation furnace body, drives the flowing of blade driving shielding gas, and shielding gas drives heat to heat-treat the powder on body of heater inner bag.But; because the temperature of the shielding gas in thermal insulation furnace body is higher; there is floating trend and do not have return air channel to carry out the flow direction to it and limit; thus the flow direction not circumscribed of shielding gas is made; driving fan blade rotating band shielding gas cannot be made to flow to each region in thermal insulation furnace body to the kinetic energy of shielding gas, there is dead angle and the uneven problem of hardening capacity in the thermal treatment namely existed for powder.
In addition, existing atmosphere box-type furnace as shown in Figure 1, also there is the weak point of following several respects in it: 1, existing atmosphere box-type furnace can only control internal protection gas flow rate by driving the rotating speed of fan blade, but the shielding gas flow velocity of heat-treating powder especially by body of heater inner bag is uncontrollable; 2, the heating element structure of the box furnace interior of existing atmosphere is too complicated, but uneven, effective in the heat transmission of thermal insulation furnace body inside; 3, the thermal insulation furnace body of existing atmosphere box-type furnace have employed the insulation furnace lining that insulating brick is built into, and heat retaining property is not high and insulating brick specific heat capacity is higher, and namely energy expenditure is serious.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of novel structure, the uniform atmosphere box-type furnace of thermal treatment; Another object of the present utility model is optimized this atmosphere box-type furnace, makes it reduce energy consumption, heat transmission evenly and can control gas flow rate.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A kind of atmosphere box-type furnace, comprises the thermal insulation furnace body that inside passes into shielding gas, and for the heating unit of heated protective gas, and the drive unit for driving shielding gas to flow, and for placing the body of heater inner bag of powder to be processed; Described drive unit comprises the driving fan blade being in thermal insulation furnace body inner upper, and the driving blower fan be connected with driving fan blade, and heating unit and body of heater inner bag are all in thermal insulation furnace body, and body of heater inner bag is in and drives below fan blade; The return air channel for the shielding gas that leads is provided with in described thermal insulation furnace body, return air channel comprises for limiting the first guide part of shielding gas uniflux driving blade driving, and for the second guide part of the shielding gas uniflux that limits body of heater inner bag periphery; Described second guide part is in the first guide part downstream, the first guide part offers the air-flow through hole for the protection of gas backstreaming.
As preferably, described air-flow through hole is on the first guide part of driving immediately below fan blade; During use, described driving fan blade adopts centrifugation blade, and centrifugation blade from lower suction, and is given vent to anger by the fan blade of periphery, therefore air-flow through hole is arranged on the flowing being conducive to shielding gas below centrifugation blade.
As preferably, the second guide part comprises the ventilative sidewall being in body of heater inner bag both sides, and is in the airtight top board above body of heater inner bag; The effect of the second guide part is the shielding gas uniflux of restriction body of heater inner bag periphery, is specifically the ventilative sidewall by both sides, and the horizontal uniflux of airtight top board restriction shielding gas of top.
As preferably, the ventilative sidewall of described body of heater inner bag both sides includes the two porous plates of overlapped setting, and the lap position of two porous plates is adjustable, and between the through hole on two porous plates, lap is ventilative through hole; Adjust the size of ventilative through hole by adjusting the lap position of two porous plates, and then control the flow velocity of shielding gas and the flow of body of heater inner bag periphery, meet different process demand.
As preferably, described body of heater inner bag comprises polylith for placing the dividing plate of box-packed powder, and polylith dividing plate is horizontally installed between the ventilative sidewall of both sides; Body of heater inner bag is divided into multiple drying area by polylith dividing plate up and down, can be box-packed and be placed in body of heater inner bag and dry by powder in production, is similar to bread toaster; This effect is, on the one hand by how box-packed for powder, is convenient to hardening capacity when promoting thermal treatment; On the other hand, polylith dividing plate limits the shielding gas transverse flow of body of heater inner bag periphery further, ensure that the through hardening on every one deck powder is even.
As preferably, described thermal insulation furnace body comprises furnace wall, outside and interior furnace wall, and the insulation furnace lining be made up of ceramic silicic acid aluminium, and described holding furnace padding fills outside between wing furnace wall and interior furnace wall; Pottery pure aluminium silicate has fire-resistant, insulation, the characteristic such as heat insulation, and lower compared to its specific heat capacity of traditional insulating brick, and the insulation furnace lining therefore made by ceramic silicic acid aluminium is compared and traditional furnace lining energy-conservation more than 25%.
As preferably, described driving blower fan is driven by drive shaft and drives fan blade, drives blower fan to be in outside thermal insulation furnace body, and drive shaft sealing is located on thermal insulation furnace body; Need the stopping property ensureing drive shaft periphery, prevent the loss of internal heat and shielding gas.
As preferably, described heating unit comprises the heating unit being arranged on body of heater inner bag both sides, and heating unit is between the second guide part of return air channel and thermal insulation furnace body; Described heating unit comprises deck, and free end end is arranged on many U-shaped heating tubes in deck, the many interlaced settings of U-shaped heating tube; The heating unit of both sides, and to comprise the many U-shaped heating tubes be crisscross arranged in heating unit are all uniform heat distribution in order to make in thermal insulation furnace body.
As preferably, described deck sealing is located on thermal insulation furnace body, and many U-shaped heating tubes are all in thermal insulation furnace body; Need the stopping property ensureing heating unit periphery, prevent the loss of thermal insulation furnace body internal heat and shielding gas.
As preferably, the quantity of described U-shaped heating tube is 3, and 3 U-shaped heating tubes are with the axle center place of heating unit for the interlaced setting in the center of circle, and the angle between two adjacent U-shaped arms and axle center place is 60 °; By heating unit six decile, be convenient to the heating to periphery shielding gas, thermal uniformity is good.
The utility model adopts technique scheme, and atmosphere box-type furnace includes thermal insulation furnace body, and is arranged on drive unit, heating unit and the body of heater inner bag in thermal insulation furnace body; Be placed on body of heater inner bag by box-packed for powder to be processed during use, thermal insulation furnace body inside passes into shielding gas, as nitrogen; Heating unit heats shielding gas, and drive unit flows for driving shielding gas, is circulated drive heat to heat-treat powder by shielding gas; And this atmosphere box-type furnace further comprises the return air channel for the shielding gas that leads; make the directed flow of internal protection gas by described return air channel, evenly distinguish; make powder thermal treatment even, and solve the technical problem that the thermal insulation furnace body internal gas flow direction exists dead angle.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing atmosphere box-type furnace.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of ventilative sidewall.
Fig. 4 is the structural representation of ventilative through hole.
Fig. 5 is the schematic cross-section of U-shaped heating tube.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
A kind of atmosphere box-type furnace as shown in Fig. 2 ~ Fig. 5; comprise the thermal insulation furnace body 1 that inside passes into shielding gas; and for the heating unit of heated protective gas; and the drive unit for driving shielding gas to flow; and for placing the body of heater inner bag 4 of powder to be processed, and for the return air channel of the shielding gas that leads.
Thermal insulation furnace body 1 comprises furnace wall 11, outside and interior furnace wall 12, and the insulation furnace lining 13 be made up of ceramic silicic acid aluminium, and insulation furnace lining 13 is filled between furnace wall 11, outside and interior furnace wall 12; Pottery pure aluminium silicate has fire-resistant, insulation, the characteristic such as heat insulation, and lower compared to its specific heat capacity of traditional insulating brick, and the insulation furnace lining 13 therefore made by ceramic silicic acid aluminium is compared and traditional furnace lining energy-conservation more than 25%.
Drive unit comprises the driving fan blade 31 being in thermal insulation furnace body 1 inner upper; and with drive the driving blower fan 32 that is connected of fan blade 31; drive blower fan 32 to be driven by drive shaft 33 and drive fan blade 31; blower fan 32 is driven to be in outside thermal insulation furnace body 1; drive shaft 33 sealing is located on thermal insulation furnace body 1; ensure that the stopping property of drive shaft 33 periphery, prevent the loss of internal heat and shielding gas.
Return air channel comprises for limiting the first guide part 51 of shielding gas uniflux driving fan blade 31 to drive, and for the second guide part of the shielding gas uniflux that limits body of heater inner bag 4 periphery, the second guide part is in the first guide part 51 downstream.Described first guide part 51 offers the air-flow through hole 511 for the protection of gas backstreaming, air-flow through hole 511 is on the first guide part 51 immediately below driving fan blade 31; During use, drive fan blade 31 to adopt centrifugation blade, centrifugation blade from lower suction, and is given vent to anger by the fan blade of periphery, therefore air-flow through hole 511 is arranged on the flowing being conducive to shielding gas below centrifugation blade.Second guide part comprises the ventilative sidewall 521 being in body of heater inner bag 4 both sides, and is in the airtight top board 522 above body of heater inner bag 4; The effect of the second guide part is the shielding gas uniflux of restriction body of heater inner bag 4 periphery, is specifically the ventilative sidewall 521 by both sides, and the airtight top board 522 of top limits the horizontal uniflux of shielding gas.The ventilative sidewall 521 of body of heater inner bag 4 both sides includes the two porous plates 521a of overlapped setting, and the lap position of two porous plates 521a is adjustable, and between the through hole on two porous plates 521a, lap is ventilative through hole 521b; Adjusted the size of ventilative through hole 521b by the lap position of adjustment two porous plates 521a, and then control the flow velocity of shielding gas and the flow of body of heater inner bag 4 periphery, meet different process demand.
Body of heater inner bag 4 is in the thermal insulation furnace body 1 below driving fan blade 31, and body of heater inner bag 4 comprises polylith for placing the dividing plate 41 of box-packed powder, and polylith dividing plate 41 is horizontally installed between the ventilative sidewall 521 of both sides; Body of heater inner bag about 4 is divided into multiple drying area by polylith dividing plate 41, can be box-packed and be placed in body of heater inner bag 4 and dry by powder in production, is similar to bread toaster; This effect is: on the one hand by how box-packed for powder, is convenient to hardening capacity when promoting thermal treatment; On the other hand, polylith dividing plate 41 limits the shielding gas transverse flow of body of heater inner bag 4 periphery further, ensure that the through hardening on every one deck powder is even.
Heating unit is in thermal insulation furnace body 1, and heating unit comprises the heating unit 2 being arranged on body of heater inner bag 4 both sides, and heating unit 2 is between the second guide part of return air channel and thermal insulation furnace body 1; Heating unit 2 comprises deck 21, and free end end is arranged on many U-shaped heating tubes 22 in deck 21, and deck 21 sealing is located on thermal insulation furnace body 1, and many U-shaped heating tubes 22 to be in thermal insulation furnace body 1 and the many interlaced settings of U-shaped heating tube 22; Specifically the quantity of U-shaped heating tube 22 is 3, and 3 U-shaped heating tubes 22 are with the axle center place of heating unit 2 for the interlaced setting in the center of circle, and the angle α between two adjacent U-shaped arms and axle center place is 60 °; By heating unit 2 six decile, be convenient to the heating to periphery shielding gas, thermal uniformity is good.In using, the heating unit 2 of both sides, and to comprise the U-shaped heating tube 22 be crisscross arranged in heating unit 2 are all uniform heat distribution in order to make in thermal insulation furnace body 1; It is loss in order to prevent thermal insulation furnace body 1 internal heat and shielding gas that deck 21 sealing is located on thermal insulation furnace body 1.
In sum, atmosphere box-type furnace includes thermal insulation furnace body, and is arranged on drive unit, heating unit and the body of heater inner bag in thermal insulation furnace body; Be placed on body of heater inner bag by box-packed for powder to be processed during use, thermal insulation furnace body inside passes into shielding gas, as nitrogen; Heating unit heats shielding gas, and drive unit flows for driving shielding gas, is circulated drive heat to heat-treat powder by shielding gas; And this atmosphere box-type furnace further comprises the return air channel for the shielding gas that leads; make the directed flow of internal protection gas by described return air channel, evenly distinguish; make powder thermal treatment even, and solve the technical problem that the thermal insulation furnace body internal gas flow direction exists dead angle.
Claims (10)
1. an atmosphere box-type furnace, comprises the thermal insulation furnace body that inside passes into shielding gas, and for the heating unit of heated protective gas, and the drive unit for driving shielding gas to flow, and for placing the body of heater inner bag of powder to be processed; Described drive unit comprises the driving fan blade being in thermal insulation furnace body inner upper, and the driving blower fan be connected with driving fan blade, and heating unit and body of heater inner bag are all in thermal insulation furnace body, and body of heater inner bag is in and drives below fan blade; It is characterized in that: in described thermal insulation furnace body, be provided with the return air channel for the shielding gas that leads, return air channel comprises for limiting the first guide part of shielding gas uniflux driving blade driving, and for the second guide part of the shielding gas uniflux that limits body of heater inner bag periphery; Described second guide part is in the first guide part downstream, the first guide part offers the air-flow through hole for the protection of gas backstreaming.
2. a kind of atmosphere box-type furnace according to claim 1, is characterized in that: described air-flow through hole is on the first guide part immediately below driving fan blade.
3. a kind of atmosphere box-type furnace according to claim 2, is characterized in that: the second guide part comprises the ventilative sidewall being in body of heater inner bag both sides, and is in the airtight top board above body of heater inner bag.
4. a kind of atmosphere box-type furnace according to claim 3, it is characterized in that: the ventilative sidewall of described body of heater inner bag both sides includes the two porous plates of overlapped setting, the lap position of two porous plates is adjustable, and between the through hole on two porous plates, lap is ventilative through hole.
5. a kind of atmosphere box-type furnace according to claim 4, is characterized in that: described body of heater inner bag comprises polylith for placing the dividing plate of box-packed powder, and polylith dividing plate is horizontally installed between the ventilative sidewall of both sides.
6. a kind of atmosphere box-type furnace according to claim 1, is characterized in that: described thermal insulation furnace body comprises furnace wall, outside and interior furnace wall, and the insulation furnace lining be made up of ceramic silicic acid aluminium, and described holding furnace padding fills outside between wing furnace wall and interior furnace wall.
7. a kind of atmosphere box-type furnace according to claim 1 or 6, is characterized in that: described driving blower fan is driven by drive shaft and drives fan blade, drives blower fan to be in outside thermal insulation furnace body, and drive shaft sealing is located on thermal insulation furnace body.
8. a kind of atmosphere box-type furnace according to claim 1, is characterized in that: described heating unit comprises the heating unit being arranged on body of heater inner bag both sides, and heating unit is between the second guide part of return air channel and thermal insulation furnace body; Described heating unit comprises deck, and free end end is arranged on many U-shaped heating tubes in deck, the many interlaced settings of U-shaped heating tube.
9. a kind of atmosphere box-type furnace according to claim 8, is characterized in that: described deck sealing is located on thermal insulation furnace body, and many U-shaped heating tubes are all in thermal insulation furnace body.
10. a kind of atmosphere box-type furnace according to claim 8, it is characterized in that: the quantity of described U-shaped heating tube is 3,3 U-shaped heating tubes are with the axle center place of heating unit for the interlaced setting in the center of circle, and the angle between two adjacent U-shaped arms and axle center place is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605323.9U CN204111823U (en) | 2014-10-20 | 2014-10-20 | A kind of atmosphere box-type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605323.9U CN204111823U (en) | 2014-10-20 | 2014-10-20 | A kind of atmosphere box-type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204111823U true CN204111823U (en) | 2015-01-21 |
Family
ID=52329156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420605323.9U Expired - Fee Related CN204111823U (en) | 2014-10-20 | 2014-10-20 | A kind of atmosphere box-type furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204111823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313275A (en) * | 2014-10-20 | 2015-01-28 | 浙江宇辰工业炉有限公司 | Atmospheric box-type furnace |
| CN105002336A (en) * | 2015-08-18 | 2015-10-28 | 杨景峰 | Thermal treatment furnace provided with novel furnace atmosphere stirring system |
-
2014
- 2014-10-20 CN CN201420605323.9U patent/CN204111823U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313275A (en) * | 2014-10-20 | 2015-01-28 | 浙江宇辰工业炉有限公司 | Atmospheric box-type furnace |
| CN105002336A (en) * | 2015-08-18 | 2015-10-28 | 杨景峰 | Thermal treatment furnace provided with novel furnace atmosphere stirring system |
| CN105002336B (en) * | 2015-08-18 | 2017-08-11 | 杨景峰 | A kind of heat-treatment furnace with new furnace atmosphere stirring system |
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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: 20150121 Termination date: 20151020 |
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| EXPY | Termination of patent right or utility model |