CN209210656U - A kind of silicon nitride function ceramics powder producing device - Google Patents
A kind of silicon nitride function ceramics powder producing device Download PDFInfo
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- CN209210656U CN209210656U CN201821500570.7U CN201821500570U CN209210656U CN 209210656 U CN209210656 U CN 209210656U CN 201821500570 U CN201821500570 U CN 201821500570U CN 209210656 U CN209210656 U CN 209210656U
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Abstract
The utility model discloses a kind of silicon nitride function ceramics powder producing devices, including by several nitriding furnaces arranged side by side and the nitrogen making machine for being passed through nitrogen for nitriding furnace, it is equipped with that be disposed around hopper outer and can be to the heating element that it is heated in furnace chamber, it is equipped with vertically in nitriding furnace and extends from bottom and enter the nitrogen input pipe in hopper, nitrogen circulation mechanism connects two adjacent nitrogen furnaces through nitrogen circulation inlet pipe with nitrogen circulation outlet pipe respectively, compared with prior art, the utility model using multiple nitriding furnaces side by side by the way of, realize continuous production, using nitrogen circulation mechanism in nitriding furnace temperature-fall period to and be not involved in the nitrogen of nitridation reaction and be collected and filter, and it is passed through adjacent nitriding furnace and is nitrogenized, realize recycling for nitrogen；Improving nitrogen is passed through structure simultaneously, in a manner of straight-through material, shortens currency of the nitrogen on furnace wall, substantially improves its service performance, improve nitridation quality.
Description
[technical field]
The utility model relates to the technical field of ceramic powders process equipment, especially a kind of silicon nitride function ceramics powder
Producing device.
[background technique]
The chemical corrosion resistance of silicon nitride ceramics is good, intensity is high, hardness is high, and wear-resisting property is good, coefficient of friction is small, resistance to height
No matter temperature, the advantages such as density is low as structural material or functional material all have application prospect, in recent years by more and more
Concern.Silicon nitride ceramics is in works such as petroleum, chemical industry, microelectronics, space flight, aviation, papermaking, laser, automobile, mining industry and atomic energy
Industry field has been widely used.The preparation method of silicon nitride ceramics mainly has at present: powder compacting sintering method, collosol and gel
Method and reaction sintering etc..
Due to the harshness of alpha-silicon nitride powders firing condition, currently, the production of silicon nitride ceramic powder is all using small-sized
Vacuum nitriding furnace is fired.It mainly includes furnace wall and furnace roof, and furnace roof has arch arch, is passed through dress equipped with electric heater unit, nitrogen
It sets and exhaust apparatus, has nitrogen input pipe in nitrogen access equipment, have exhaust pipe in exhaust apparatus.Nitrogen input pipe is used for furnace
Interior logical nitrogen, nitrogen input pipe enter insulating layer by furnace roof portion, and nitrogen is penetrated into through heat preservation lamellar spacing to burner hearth, nitrogen input speed
Slowly, the time is long for degree, with often lagging product the nitridation reaction time, influences to nitrogenize quality；And the nitriding furnace of this kind of structure exists
The extra nitrogen of the course of work will be discharged to outside equipment, cause the waste to nitrogen, can not achieve the circulation benefit to nitrogen
With.
[utility model content]
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of silicon nitride function ceramics powder system
Make device, can be realized continuous production and reach nitrogen circulation utilization, while improving nitridation quality.
To achieve the above object, the utility model proposes a kind of silicon nitride function ceramics powder producing devices, including by
Several nitriding furnaces arranged side by side and the nitrogen making machine for being passed through nitrogen for the nitriding furnace are connected on the nitriding furnace and are used for
The vacuum mechanism being evacuated, the nitriding furnace include the furnace wall to form furnace chamber and the arch being arranged at the top of the furnace wall
Arch is equipped with the hopper for placing material in the furnace chamber, be equipped in the furnace chamber be disposed around outside the hopper and can to its into
The heating element of row heating is equipped in the nitriding furnace vertically and extends and enter the nitrogen in the hopper from bottom and input
It manages, nitrogen circulation mechanism is equipped between two neighboring nitriding furnace, the nitrogen circulation mechanism is respectively through nitrogen circulation inlet pipe and nitrogen
Gas circulation outlet pipe connects two adjacent nitriding furnaces.
Preferably, the nitrogen circulation inlet pipe and nitrogen circulation outlet pipe are horizontally set on the furnace wall of the nitriding furnace simultaneously
It extends into the hopper.
Preferably, the nitrogen circulation mechanism includes cabinet and is arranged in the intracorporal nitrogen circulation collecting pipe of the case,
The nitrogen circulation is collected an end pipe and is connect through return pipe with the nitrogen circulation inlet pipe, the other end and the nitrogen circulation outlet pipe
Connection.
Preferably, being equipped with nitrogen gas filters between the nitrogen circulation mechanism and nitrogen circulation outlet pipe.
Preferably, the nitrogen making machine is equipped with efferent duct, the nitrogen input pipe is connected on the efferent duct and sets
There is control valve.
The utility model has the beneficial effects that compared with prior art, the utility model uses the side of multiple nitriding furnaces side by side
Formula realizes continuous production, using nitrogen circulation mechanism in nitriding furnace temperature-fall period to and be not involved in the nitrogen of nitridation reaction
It is collected and filters, and be passed through adjacent nitriding furnace and nitrogenized, realize recycling for nitrogen；Nitrogen is improved simultaneously to be passed through
Structure is shortened currency of the nitrogen on furnace wall, is substantially improved its service performance, improved in a manner of straight-through material
Nitrogenize quality.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- nitriding furnace, 2- nitrogen making machine, 3- vacuum mechanism, 4- furnace wall, 5- encircle arch, 6- hopper, 7- heating element, 8-
Nitrogen input pipe, 9- nitrogen circulation inlet pipe, 10- nitrogen circulation outlet pipe, 11- cabinet, 12- nitrogen circulation collecting pipe, 13- reflux
Pipe, 14- nitrogen gas filters, 15- efferent duct, 16- control valve.
[specific embodiment]
Refering to fig. 1, the utility model includes by several nitriding furnaces 1 arranged side by side and for being passed through for the nitriding furnace 1
The nitrogen making machine 2 of nitrogen, the quantity of nitriding furnace 1 is two in the present embodiment, is connected on the nitriding furnace 1 true for being pumped into
Empty vacuum mechanism 3, the nitriding furnace 1 includes the arch arch 5 for forming the furnace wall 4 of burner hearth and 4 top of furnace wall being arranged in, described
It is equipped with the hopper 6 for placing material in burner hearth, is equipped in the burner hearth and is disposed around outside the hopper 6 and it can be heated
Heating element 7, be equipped in the nitriding furnace 1 vertically and extend and enter the nitrogen input pipe 8 in the hopper 6 from bottom,
Nitrogen circulation mechanism is equipped between two neighboring nitriding furnace 1, the nitrogen circulation mechanism is respectively through nitrogen circulation inlet pipe 9 and nitrogen
Gas circulation outlet pipe 10 connects two adjacent nitriding furnaces 1.
Specifically, the nitrogen circulation inlet pipe 9 and nitrogen circulation outlet pipe 10 are horizontally set on the furnace wall 4 of the nitriding furnace 1
It goes up and extends into the hopper 6.
Specifically, the nitrogen circulation mechanism includes cabinet 11 and the nitrogen circulation collecting pipe that is arranged in the cabinet 11
12, described 12 one end of nitrogen circulation collecting pipe is connect through return pipe 13 with the nitrogen circulation inlet pipe 9, the other end and the nitrogen
Gas recycles outlet pipe 10 and connects.
Specifically, being equipped with nitrogen gas filters 14 between the nitrogen circulation mechanism and nitrogen circulation outlet pipe 10.Nitrogen filtering
Anti- protective cover is equipped in device 14.
Specifically, the nitrogen making machine 2 is equipped with efferent duct 15, the nitrogen input pipe 8 is connected on the efferent duct 15
And it is equipped with control valve 16.Multiple nitriding furnaces 1 conveniently control it for nitrogen using separate unit nitrogen making machine 2.
Claims (5)
1. a kind of silicon nitride function ceramics powder producing device, including by several nitriding furnaces (1) arranged side by side and for for institute
The nitrogen making machine (2) that nitriding furnace (1) is passed through nitrogen is stated, the vacuum machine for being evacuated is connected on the nitriding furnace (1)
Structure (3), it is characterised in that: the nitriding furnace (1) includes forming the furnace wall (4) of burner hearth and being arranged at the top of the furnace wall (4)
Encircle arch (5), the hopper (6) for placing material is equipped in the burner hearth, is equipped in the burner hearth and is disposed around the hopper (6) outside
And the heating element (7) that it is heated can be equipped with vertically in the nitriding furnace (1) and extend from bottom and enter the material
Nitrogen input pipe (8) in case (6) is equipped with nitrogen circulation mechanism, the nitrogen circulation mechanism between two neighboring nitriding furnace (1)
Two adjacent nitriding furnaces (1) are connected through nitrogen circulation inlet pipe (9) and nitrogen circulation outlet pipe (10) respectively.
2. a kind of silicon nitride function ceramics powder producing device according to claim 1, it is characterised in that: the nitrogen follows
Ring inlet pipe (9) and nitrogen circulation outlet pipe (10) are horizontally set on the furnace wall (4) of the nitriding furnace (1) and extend into described
In hopper (6).
3. a kind of silicon nitride function ceramics powder producing device according to claim 2, it is characterised in that: the nitrogen follows
Ring mechanism includes the nitrogen circulation collecting pipe (12) of cabinet (11) and setting in the cabinet (11), and the nitrogen circulation is collected
Pipe (12) one end is connect through return pipe (13) with the nitrogen circulation inlet pipe (9), the other end and the nitrogen circulation outlet pipe (10)
Connection.
4. a kind of silicon nitride function ceramics powder producing device according to claim 2 or 3, it is characterised in that: the nitrogen
Nitrogen gas filters (14) are equipped between gas circulation mechanism and nitrogen circulation outlet pipe (10).
5. a kind of silicon nitride function ceramics powder producing device according to claim 1, it is characterised in that: the nitrogen making machine
(2) efferent duct (15) are equipped with, the nitrogen input pipe (8) is connected on the efferent duct (15) and is equipped with control valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500570.7U CN209210656U (en) | 2018-09-13 | 2018-09-13 | A kind of silicon nitride function ceramics powder producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500570.7U CN209210656U (en) | 2018-09-13 | 2018-09-13 | A kind of silicon nitride function ceramics powder producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209210656U true CN209210656U (en) | 2019-08-06 |
Family
ID=67453969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500570.7U Active CN209210656U (en) | 2018-09-13 | 2018-09-13 | A kind of silicon nitride function ceramics powder producing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209210656U (en) |
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2018
- 2018-09-13 CN CN201821500570.7U patent/CN209210656U/en active Active
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Denomination of utility model: A device for making silicon nitride functional ceramic powder Effective date of registration: 20221030 Granted publication date: 20190806 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: LONGQUAN OUJIANG CELADON Co.,Ltd. Registration number: Y2022330002809 |