CN206529517U - A kind of well formula nitriding furnace - Google Patents
A kind of well formula nitriding furnace Download PDFInfo
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- CN206529517U CN206529517U CN201720061054.8U CN201720061054U CN206529517U CN 206529517 U CN206529517 U CN 206529517U CN 201720061054 U CN201720061054 U CN 201720061054U CN 206529517 U CN206529517 U CN 206529517U
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Abstract
The utility model discloses a kind of well formula nitriding furnace, including body of heater, flue and bell, stirring motor is installed above bell, the rotating shaft of stirring motor is provided with stirring vane through one end that bell is stretched into flue, nitriding gas air inlet and nitriding gas gas outlet are installed on bell, mounting seat is provided with below bell, the periphery of mounting seat is installed with air cooler, kuppe is installed with below mounting seat, the ventilating duct of lower open mouth on one is installed with flue, the bottom of kuppe and the top of ventilating duct are connected, gap is left between ventilating duct and flue and forms nitriding gas passage, gap is left between flue and the inwall of body of heater and forms air-cooled passage, the bottom of body of heater is provided with air blower, the output end of air blower is communicated to the bottom of air-cooled passage, the top of body of heater is provided with an air-cooled air outlet for being communicated to air-cooled passage.Well formula nitriding furnace workpiece nitridation quality is good, cooling effectiveness is high.
Description
Technical field
The utility model belongs to technical field of heat treatment equipment, more particularly to a kind of well formula nitriding furnace.
Background technology
Nitridation is the critical process for improving workpiece surface wearability.Existing gas nitriding equipment has well formula nitriding furnace, case
Formula nitriding furnace etc..Wherein well formula nitriding furnace is a kind of gas nitriding equipment of conventional carbon steel part.The uniformity of nitridation, nitridation
Cooling velocity after technique terminates is to weigh the important performance indexes of well formula nitriding furnace, has reacted the matter of workpiece after via nitride processing
Amount and treatment effeciency.
Existing well formula nitriding furnace is primarily present problems with：(1) well formula nitriding furnace workpiece is after nitriding process terminates
The utilization rate of equipment is improved, operating efficiency is improved, workpiece from technological temperature should be cooled to what can be come out of the stove as soon as possible for about 560 DEG C
Temperature (typically less than 100 DEG C).And the cooling velocity of existing well formula nitriding furnace need further raising, further to carry
High treatment efficiency；(2) during the nitridation of existing well formula nitriding furnace nitriding gas poor fluidity, cause nitriding gas to be distributed in stove
It is uneven, and then cause the variable thickness of workpiece nitration case to cause, influence workpiece nitridation quality；(3) existing well formula nitriding furnace is useless
Gas discharging modes are that waste gas burning pipe, direct burning and exhausting are set on bell.But, because ammonia can not be complete in stove
Cracking, can not be burnt completely after waste gas burning pipe, so that the gas discharged after burning still contains ammonia, ammonia is carried
Penetrating odor, workshop condition can be influenceed by being discharged into air, cause the pollution to environment.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to mention and defect in background above technology, is carried
The well formula nitriding furnace that quality is good, cooling effectiveness is high is nitrogenized for a kind of workpiece.
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of well formula nitriding furnace, including body of heater, flue and bell, the flue are installed in the inner chamber of the body of heater, institute
State bell and cover and stirring motor is installed above open-mouth in body of heater, the bell, the rotating shaft of the stirring motor is passed through
One end that bell is stretched into flue, which is provided with stirring vane, bell, is provided with nitriding gas air inlet and nitriding gas outlet
Mouthful, mounting seat is provided with below the bell, the periphery of the mounting seat is installed with air cooler, the mounting seat
Side is installed with the ventilating duct that lower open mouth on one is installed with kuppe, the flue, the bottom of the kuppe with
The ventilating duct top connection, left between ventilating duct and the flue gap formed nitriding gas passage, the flue with
Gap is left between the inwall of the body of heater and forms air-cooled passage, the bottom of the body of heater is provided with air blower, the air blower
Output end be communicated to the bottom of the air-cooled passage, the top of the body of heater is communicated to the air-cooled of the air-cooled passage provided with one
Air outlet.
It is used as the further improvement to above-mentioned technical proposal：
It is preferred that, the air cooler include around the mounting seat set forced air cooled tube, the forced air cooled tube twist, wind
Cold pipe has an air intake and an outlet air end, and the air intake and the outlet air end extend out to the outside of the bell.
It is preferred that, the lower edge of the kuppe is provided with annular groove, and the width of the annular groove is not less than the wind-guiding
The wall thickness of cylinder, the ventilating duct is embedded in the annular groove and is connected with the kuppe.
It is furthermore preferred that the kuppe is in horn-like, its upper and lower part is respectively provided with opening, and the bore of upper opening is small
In the bore of lower openings.
It is furthermore preferred that the nitriding gas air inlet is located at the side of the kuppe, not just to the upper of the kuppe
Portion's opening is set.
It is preferred that, the nitriding gas gas outlet connects an ammonia pyrolysis furnace, the nitriding gas gas outlet by pipeline
A spark arrester is installed on the pipeline being connected with the ammonia pyrolysis furnace.
It is preferred that, the inner side of the body of heater is provided with heat-insulation layer.
Compared with prior art, the utility model has the advantage of：
(1) by installing air cooler in body of heater, the air cooler can be opened after nitrogen treatment terminates to being dropped in stove
Temperature cooling；Air blower is installed in the bottom of body of heater, the output end of the air blower is communicated to the bottom of air-cooled passage, the top of body of heater
Set air-cooled air outlet, nitrogen treatment to open air blower after terminating to be cooled down by air-cooled passage；Air blower combines air-cooled
Device, to being cooled down inside and outside flue simultaneously, greatly reduces cooling effect, improves the treatment effeciency of nitriding furnace.
(2) by setting the kuppe and ventilating duct that are connected with each other, nitriding gas is in the presence of stirring vane along water conservancy diversion
The nitriding gas passage formed between cover and ventilating duct and flue flows from top to bottom, then enters wind-guiding from the bottom of ventilating duct
In cylinder, ascended into along ventilating duct in kuppe, the overhead stream through kuppe under stirring vane suction function formed below
Go out, in this way, forming circulating current in flue, improve the uniformity of workpiece nitridation, improve workpiece nitridation quality.
(3) nitriding gas gas outlet is connected to an ammonia pyrolysis furnace, to not carried out in stove using complete ammonia at cracking
Reason, reduces workshop peculiar smell, reduces the pollution to environment.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model well formula nitriding furnace.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Marginal data：
1st, body of heater；2nd, flue；3rd, bell；4th, stirring motor；5th, stirring vane；6th, mounting seat；7th, air cooler；8th, water conservancy diversion
Cover；9th, ventilating duct；10th, nitriding gas passage；11st, air-cooled passage；12nd, air blower；13rd, air-cooled air outlet；14th, nitriding gas enters
Gas port；15th, nitriding gas gas outlet；16th, ammonia pyrolysis furnace；17th, spark arrester；18th, heat-insulation layer；71st, forced air cooled tube；72nd, air intake；
73rd, outlet air end；81st, annular groove.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, is meticulously described, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting in the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality
New protection domain.
Embodiment
As depicted in figs. 1 and 2, well formula nitriding furnace of the present utility model, including body of heater 1, flue 2 and bell 3.Wherein flue
2 are installed in the inner chamber of body of heater 1, and bell 3 covers the open-mouth in body of heater 1.Stirring motor 4 is installed in the top of bell 3, should
The rotating shaft of stirring motor 4 is stretched into flue 2 through bell 3, and one end that rotating shaft is stretched into flue 2 is provided with stirring vane 5.Bell
Nitriding gas air inlet 14, nitriding gas gas outlet 15 and electroheat pair are installed on 3.The lower section of bell 3 is provided with mounting seat 6,
The periphery of the mounting seat 6 is installed with air cooler 7, and the lower section of mounting seat 6 is installed with kuppe 8.Fixed peace in flue 2
Ventilating duct 9 equipped with a upper lower open mouth.The bottom of kuppe 8 is connected with the top of the ventilating duct 9, ventilating duct 9 and flue 2 it
Between leave gap, the gap forms nitriding gas passage 10.Ammonia via nitride gas inlet 14 enter flue 2 in after,
Flowed from top to bottom along the nitriding gas passage 10 formed between kuppe 8 and ventilating duct 9 and flue 2 in the presence of stirring vane 5
It is dynamic, then enter from the bottom of ventilating duct 9 in ventilating duct 9, ascended into along ventilating duct 9 in kuppe 8, under stirring vane 5
It is square into suction function under the top outflow through kuppe 8, circulating current is formed in the flue 2, workpiece nitridation is improved
Uniformity, improves workpiece nitridation quality.Gap is also left between the inwall of flue 2 and body of heater 1, the gap forms air-cooled passage
11.Air blower 12 is installed in the bottom of body of heater 1, the output end of the air blower 12 is communicated to the bottom of air-cooled passage 11, body of heater 1
Top provided with an air-cooled air outlet 13 for being communicated to air-cooled passage 11.By installing air cooler 7 in body of heater 1, wait to nitrogenize
Processing opens the air cooler 7 to carrying out cooling down in stove after terminating.Air blower 12, the air blower are installed in the bottom of body of heater 1
12 output end is communicated to the bottom of air-cooled passage 11, and the top of body of heater 1 sets air-cooled air outlet 13, and nitrogen treatment is opened after terminating
Air blower 12 is opened to be cooled down by air-cooled passage 11.Air cooler 7 is combined using air blower 12, it is inside and outside to flue 2 to carry out simultaneously
Cooling, greatly reduces cooling effect, improves the treatment effeciency of nitriding furnace.
In the present embodiment, air cooler 7 include be fitted around seat 6 setting forced air cooled tube 71, the forced air cooled tube 71 twist, wind
Cold pipe 71 has an air intake 72 and an outlet air end 73, and the air intake 72 and outlet air end 73 extend out to the outside of bell 3.Using
Spiral forced air cooled tube 71, further increases the effect that cools.
In the present embodiment, annular groove 81 is provided with the lower edge of kuppe 8, the width of the annular groove 81 is not less than wind-guiding
The wall thickness of cylinder 9, when kuppe 8 is combined with ventilating duct 9, is connected in the insertion annular groove 81 of ventilating duct 9 with kuppe 8.In this way, will
Bell 3 easily can separate kuppe 8 with ventilating duct 9 when rising, and can make kuppe 8 and ventilating duct 9 when bell 3 is covered
Close chimeric, convenient disassembly simultaneously can prevent the junction of nitriding gas from kuppe 8 and ventilating duct 9 from spilling.The shape of the kuppe 8
Shape is preferably horn-like, and its upper and lower part is respectively provided with opening, and bore of the bore less than lower openings of its upper opening, has
Beneficial to forming circulating current.Nitriding gas air inlet 14 is preferably provided at the side of kuppe 8, not the top just to kuppe 8
Opening is set, advantageously in forming circulating current, is conducive to improving the uniformity nitrogenized.
The nitriding gas gas outlet 15 of the well formula nitriding furnace connects an ammonia pyrolysis furnace 16 by pipeline, and nitriding gas goes out
One spark arrester 17 is installed on the pipeline that gas port 15 is connected with ammonia pyrolysis furnace 16.Waste gas after the completion of nitrogen treatment splits through ammonia
Solution stove 16 is handled, and to not cracked in stove using complete ammonia, is reduced workshop peculiar smell, is reduced the dirt to environment
Dye.Multiple heating element heaters are provided with the body of heater 1 of the well formula nitriding furnace, heat-insulation layer 18, more supernumerary segment are provided with the inner side of body of heater 1
Energy.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (7)
1. a kind of well formula nitriding furnace, including body of heater (1), flue (2) and bell (3), the flue (2) are installed in the body of heater
(1) in inner chamber, the bell (3) covers and is provided with stirring motor above the open-mouth in body of heater (1), the bell (3)
(4), the rotating shaft of the stirring motor (4) is provided with stirring vane (5), bell through one end that bell (3) is stretched into flue (2)
(3) nitriding gas air inlet (14) and nitriding gas gas outlet (15) are installed on, it is characterised in that：Under the bell (3)
Side is provided with mounting seat (6), and the periphery of the mounting seat (6) is installed with air cooler (7), the lower section of the mounting seat (6)
It is installed with the ventilating duct (9) that lower open mouth on one is installed with kuppe (8), the flue (2), the kuppe
(8) bottom is connected with the top of the ventilating duct (9), and gap is left between ventilating duct (9) and the flue (2) and forms nitridation
Gap is left between the inwall of gas passage (10), the flue (2) and the body of heater (1) and forms air-cooled passage (11), it is described
The bottom of body of heater (1) is provided with air blower (12), and the output end of the air blower (12) is communicated to the air-cooled passage (11)
Bottom, the top of the body of heater (1) is provided with an air-cooled air outlet (13) for being communicated to the air-cooled passage (11).
2. well formula nitriding furnace according to claim 1, it is characterised in that：The air cooler (7) includes installing around described
The forced air cooled tube (71) that seat (6) is set, twist, there is forced air cooled tube (71) forced air cooled tube (71) air intake (72) and one to go out
Wind end (73), the air intake (72) and the outlet air end (73) extend out to the outside of the bell (3).
3. well formula nitriding furnace according to claim 1, it is characterised in that：The lower edge of the kuppe (8) is recessed provided with annular
Groove (81), the width of the annular groove (81) is not less than the wall thickness of the ventilating duct (9), and the ventilating duct (9) is embedded described
It is connected in annular groove (81) with the kuppe (8).
4. well formula nitriding furnace according to claim 3, it is characterised in that：The kuppe (8) in horn-like, its top and
Bottom is respectively provided with opening, and bore of the bore less than lower openings of upper opening.
5. well formula nitriding furnace according to claim 4, it is characterised in that：The nitriding gas air inlet (14) is located at described
The side of kuppe (8), is not just set to the upper opening of the kuppe (8).
6. well formula nitriding furnace according to claim 1, it is characterised in that：The nitriding gas gas outlet (15) passes through pipeline
Connect and pacify on an ammonia pyrolysis furnace (16), the pipeline that the nitriding gas gas outlet (15) is connected with the ammonia pyrolysis furnace (16)
Fill a spark arrester (17).
7. the well formula nitriding furnace according to any one of claim 1-6, it is characterised in that：Set on the inside of the body of heater (1)
There is heat-insulation layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061054.8U CN206529517U (en) | 2017-01-19 | 2017-01-19 | A kind of well formula nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061054.8U CN206529517U (en) | 2017-01-19 | 2017-01-19 | A kind of well formula nitriding furnace |
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| Publication Number | Publication Date |
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| CN206529517U true CN206529517U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720061054.8U Active CN206529517U (en) | 2017-01-19 | 2017-01-19 | A kind of well formula nitriding furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442217A (en) * | 2018-12-17 | 2019-03-08 | 江苏丰东热技术有限公司 | It is a kind of to nitrogenize two-way feeder and the two-way air supply system of nitridation |
| CN110180871A (en) * | 2019-06-27 | 2019-08-30 | 苏州市东方环境技术研究有限公司 | A kind of metal powder technological processing for explosion protection feature device |
| CN110747429A (en) * | 2019-10-29 | 2020-02-04 | 徐州鼎元机械有限公司 | Automobile spare and accessory part's nitrogenize equipment |
| CN114182195A (en) * | 2021-11-27 | 2022-03-15 | 上海春玉金属热处理有限公司 | Heat treatment equipment and heat treatment method for promoting metal surface nitriding performance |
-
2017
- 2017-01-19 CN CN201720061054.8U patent/CN206529517U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442217A (en) * | 2018-12-17 | 2019-03-08 | 江苏丰东热技术有限公司 | It is a kind of to nitrogenize two-way feeder and the two-way air supply system of nitridation |
| CN110180871A (en) * | 2019-06-27 | 2019-08-30 | 苏州市东方环境技术研究有限公司 | A kind of metal powder technological processing for explosion protection feature device |
| CN110180871B (en) * | 2019-06-27 | 2024-06-04 | 苏州市东方环境技术研究有限公司 | Explosion-proof processing apparatus of metal powder |
| CN110747429A (en) * | 2019-10-29 | 2020-02-04 | 徐州鼎元机械有限公司 | Automobile spare and accessory part's nitrogenize equipment |
| CN114182195A (en) * | 2021-11-27 | 2022-03-15 | 上海春玉金属热处理有限公司 | Heat treatment equipment and heat treatment method for promoting metal surface nitriding performance |
| CN114182195B (en) * | 2021-11-27 | 2023-11-10 | 上海春玉金属热处理有限公司 | Heat treatment equipment and heat treatment method for promoting nitriding performance of metal surface |
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