CN210180152U - Continuous tunnel type device of nitrogenize reaction - Google Patents
Continuous tunnel type device of nitrogenize reaction Download PDFInfo
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- CN210180152U CN210180152U CN201920898009.7U CN201920898009U CN210180152U CN 210180152 U CN210180152 U CN 210180152U CN 201920898009 U CN201920898009 U CN 201920898009U CN 210180152 U CN210180152 U CN 210180152U
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Abstract
The utility model discloses a continuous tunnel type device of nitrogenize reaction, including preheating device, nitrogenize reaction unit, cooling device and circulation propulsion system, the front end of nitrogenize reaction unit is preheating device, and its rear end is cooling device, and circulation propulsion system is the cyclic motion device of transporting the product to all be equipped with the tunnel that is used for circulation propulsion system operation in the middle of preheating device, nitrogenize reaction unit, the cooling device, some in preheating device, nitrogenize reaction unit, cooling device's tunnel of circulation propulsion device, all be equipped with heating device in preheating device and the nitrogenize reaction unit, nitrogenize reaction unit is connected with the nitrogen gas and is responsible for, and nitrogen gas is responsible for and squeezes into the device through nitrogen gas and then communicates nitrogenize reaction unit in through a plurality of nitrogen gas spray pipes, carries out even jet-blast to nitrogenize reaction district. The quality of the nitridation reaction is ensured, the treatment, nitridation reaction and cooling of the product or product before nitridation can be continuously carried out, the production efficiency is improved, the energy is saved, and the consumption is reduced.
Description
Technical Field
The utility model belongs to nitrogenize product field specifically is a continuous tunnel type device of nitrogenize reaction.
Background
For the problem of nitridation reaction products, there are many mature treatment methods, including batch-type trolley furnace nitridation reaction, shaft furnace nitridation reaction, and nitridation reaction of sealing products on a trolley, and such devices have low production efficiency, or unstable nitridation reaction and high energy consumption.
Disclosure of Invention
In order to overcome the shortcomings of the prior art, the utility model provides a continuous tunnel type device of nitridation reaction guarantees the nitridation reaction quality, makes the processing before the nitridation of product or goods, and nitridation reaction and cooling energy go on in succession, improve production efficiency energy saving and consumption reduction.
In order to realize the technical purpose, the utility model provides a following technical scheme: the utility model provides a continuous tunnel type device of nitrogenize reaction, includes preheating device, nitrogenize reaction unit, cooling device and circulation propulsion system, the front end of nitrogenize reaction unit is preheating device, and its rear end is cooling device, and circulation propulsion system is the cyclic motion device of transporting the product to all be equipped with the tunnel that is used for circulation propulsion system operation in the middle of preheating device, nitrogenize reaction unit, the cooling device, circulation propulsion device partly is in preheating device, nitrogenize reaction unit, in the tunnel of cooling device, all be equipped with heating device in preheating device and the nitrogenize reaction unit, nitrogenize reaction unit is connected with the nitrogen main pipe, and the nitrogen main pipe is squeezed into the device through nitrogen and then is linked through a plurality of nitrogen gas spray pipes in the nitrogenize reaction unit, carries out even jet-blast to nitrogenize reaction zone, and the nitrogen gas spray pipe forms preceding nitrogen gas curtain at the entrance point of nitrogenize, And a rear nitrogen gas curtain is formed at the outlet end of the nitriding reaction device, and a nitriding reaction area is arranged between the front nitrogen gas curtain and the rear nitrogen gas curtain.
In the above technical scheme, the nitrogen outlets of the nitrogen nozzles of the front nitrogen gas curtain and the rear nitrogen gas curtain are in a contracted necking structure, and the nitrogen outlets of the other nitrogen nozzles are in an expanded flaring structure.
In the technical scheme, the circulating propulsion system pushes the kiln car to run in the tunnel through hydraulic pressure, and the kiln car is sealed with the inner walls of the preheating device, the nitridation reaction device and the cooling device by adopting double curved seal, friction curved seal and sand seal structures.
In the technical scheme, the circulating propulsion system pushes the base plate to run in the tunnel through hydraulic pressure.
In the above technical scheme, the heating devices in the preheating device and the nitridation reaction device are electric heating rods.
In the technical scheme, the heating devices in the preheating device and the nitridation reaction device are a gas radiation burner and a radiation pipe, the gas radiation burner generates heat through the mixing of gas and air in the gas radiation burner, and the heat is transferred to a product or a product through the radiation pipe.
The utility model has the advantages that: products or products to be nitrided continuously enter and exit in the tunnel through a propulsion system, and a preheating stage and a cooling stage of the products or products are isolated through front and rear nitrogen gas curtains; the production efficiency and stability of the product or the product are improved, the energy is saved, the consumption is reduced, and the product or the product cost is reduced.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of the nitridation reaction device of the present invention.
Fig. 3 is a schematic view of the cross-sectional structure of the nitriding reaction apparatus with the electric heating rod of the present invention.
Fig. 4 is the schematic view of the sectional structure of the medium gas radiation burner and the radiant tube of the present invention.
Fig. 5 is a schematic view of the cross-sectional structure of the middle cushion plate in the tunnel according to the present invention.
Fig. 6 is the schematic view of the sectional structure of the gas radiation burner, the radiation pipe and the backing plate of the present invention.
Wherein: 1. the device comprises a propulsion system, 2, a preheating device, 3, a front nitrogen gas curtain, 4, a nitriding reaction device, 5, a rear nitrogen gas curtain, 6, a cooling device, 7, a nitrogen driving device, 8, a nitrogen main pipe, 9, a heating device, 10, a kiln car, 11, a base plate, 12, a nitrogen spray pipe, 13, an electric heating rod, 14, a gas radiation burner, 15, a radiation pipe, 16 and a fireproof heat-insulating material.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to fig. 6, a continuous tunnel type nitriding reaction apparatus comprises a preheating device 2, a nitriding reaction device 4, a cooling device 6 and a circulating propulsion system 1, wherein the preheating device 2 is arranged at the front end of the nitriding reaction device 4, the cooling device 6 is arranged at the rear end of the nitriding reaction device 4, the circulating propulsion system 1 is a circulating movement device for conveying products, a tunnel for the circulating propulsion system 1 to run is arranged among the preheating device 2, the nitriding reaction device 4 and the cooling device 5, a part of the circulating propulsion device is arranged in the tunnels of the preheating device 2, the nitriding reaction device 4 and the cooling device 5, heating devices 9 are arranged in the preheating device 2 and the nitriding reaction device 4, the nitriding reaction device 4 is connected with a nitrogen main pipe 8, the nitrogen main pipe 8 is driven into the nitrogen main pipe 7 by nitrogen and then is communicated into the nitriding reaction device 4 through a plurality of nitrogen nozzles 17, and uniformly spraying air to the nitriding reaction area, wherein a front nitrogen air curtain 3 is formed at the inlet end of the nitriding reaction device 4 by a nitrogen spraying pipe 17, a rear nitrogen air curtain 5 is formed at the outlet end of the nitriding reaction device 4, and the nitriding reaction area is arranged between the front nitrogen air curtain 3 and the rear nitrogen air curtain 5. The bodies of the nitrogen reaction device 4 and the preheating device 2 are both provided with refractory heat-insulating materials 16.
In the above technical solution, the nitrogen outlets of the nitrogen nozzles 12 of the front nitrogen gas curtain 3 and the rear nitrogen gas curtain 5 are in a contracted necking structure, and the nitrogen outlets of the other nitrogen nozzles are in an expanded flaring structure.
In the technical scheme, the circulating propulsion system 1 pushes the kiln car 10 to run in the tunnel through hydraulic pressure, and double curved seals, friction curved seals and sand seals are adopted between the kiln car 10 and the inner walls of the preheating device 2, the nitridation reaction device 4 and the cooling device 6 for sealing. Multiple sealing structures can reduce nitrogen loss.
In the above technical solution, the circulation propulsion system 1 is operated in the tunnel by hydraulically pushing the tie plate 11.
In the above technical solution, the heating device 9 in the preheating device 2 and the nitridation reaction device 4 is an electric heating rod 13.
In the above technical scheme, the heating devices 9 in the preheating device 2 and the nitridation reaction device 4 are a gas radiation burner 14 and a radiation pipe 15, the gas radiation burner 14 burns in the gas radiation burner 14 to generate heat through mixing gas and air, and the heat is transferred to the product or the product through the radiation pipe 15.
In operation, the advancement speed of the cyclical advancement system 1 is set by the nitriding requirements of the different products or articles to vary the nitriding period required for the different products or articles. The nitrogen injection system 7 can control the pressure of injected nitrogen in the nitridation reaction device 4 in the tunnel, thereby controlling the speed and quality of product nitridation. The front nitrogen gas curtain 3 and the rear nitrogen gas curtain 5 can isolate oxygen in air from entering a nitriding reaction zone to protect products from being oxidized, the front nitrogen gas curtain 3 and the rear nitrogen gas curtain 5 can adjust the pressure and flow of the nitrogen gas curtains according to the nitrogen nitriding pressure in the tunnel, the nitrided products or products are cooled at the tail end of the tunnel through the cooling device 6 and then exit the tunnel at a proper temperature, enter the kiln car 10 or the backing plate 11 outside the tunnel, the nitrided products or products are unloaded from the kiln car 10 or the backing plate 11, and then the products or products to be nitrided are loaded on the kiln car 10 or the backing plate 11 to enter a nitriding cycle.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (6)
1. A continuous tunnel type device for nitridation reaction is characterized in that: the device comprises a preheating device, a nitriding reaction device, a cooling device and a circulating propulsion system, wherein the front end of the nitriding reaction device is the preheating device, the rear end of the nitriding reaction device is the cooling device, the circulating propulsion system is a circulating movement device for conveying products, a tunnel for running the circulating propulsion system is arranged among the preheating device, the nitriding reaction device and the cooling device, one part of the circulating propulsion device is positioned in the tunnel of the preheating device, the nitriding reaction device and the cooling device, heating devices are respectively arranged in the preheating device and the nitriding reaction device, the nitriding reaction device is connected with a nitrogen main pipe, the nitrogen main pipe is driven into the device through nitrogen and then is communicated into the nitriding reaction device through a plurality of nitrogen spray pipes, uniform air injection is carried out on a nitriding reaction area, the nitrogen spray pipes form a front nitrogen air curtain at the inlet end of the nitriding reaction device and form a rear nitrogen air curtain at the outlet, a nitriding reaction area is arranged between the front nitrogen gas curtain and the rear nitrogen gas curtain.
2. The nitridation reaction continuous tunnel device of claim 1, wherein: the nitrogen outlets of the nitrogen spray pipes of the front nitrogen gas curtain and the rear nitrogen gas curtain are of contracted necking structures, and the nitrogen outlets of the other nitrogen spray pipes are of expanded flaring structures.
3. The nitridation reaction continuous tunnel device of claim 1, wherein: the circulating propulsion system pushes the kiln car to run in the tunnel through hydraulic pressure, and the kiln car is sealed with the inner walls of the preheating device, the nitridation reaction device and the cooling device by adopting a double curved seal, friction curved seal and sand seal structure.
4. The nitridation reaction continuous tunnel device of claim 1, wherein: the circulating propulsion system pushes the base plate to run in the tunnel through hydraulic pressure.
5. The nitridation reaction continuous tunnel device of claim 1, wherein: the heating devices in the preheating device and the nitridation reaction device are electric heating rods.
6. The nitridation reaction continuous tunnel device of claim 1, wherein: the preheating device and the heating device in the nitridation reaction device are respectively a gas radiation burner and a radiation tube, the gas radiation burner generates heat through the mixing of gas and air in the gas radiation burner, and the heat is transferred to a product or a product through the radiation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920898009.7U CN210180152U (en) | 2019-06-15 | 2019-06-15 | Continuous tunnel type device of nitrogenize reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920898009.7U CN210180152U (en) | 2019-06-15 | 2019-06-15 | Continuous tunnel type device of nitrogenize reaction |
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| CN210180152U true CN210180152U (en) | 2020-03-24 |
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| CN201920898009.7U Active CN210180152U (en) | 2019-06-15 | 2019-06-15 | Continuous tunnel type device of nitrogenize reaction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160357A (en) * | 2019-06-15 | 2019-08-23 | 黄冈市中瓷朗能窑炉有限公司 | A kind of nitridation reaction continuous tunnel formula device |
| CN111578696A (en) * | 2020-05-27 | 2020-08-25 | 山西中齐锐能高温材料有限公司 | Novel refractory material firing tunnel kiln |
-
2019
- 2019-06-15 CN CN201920898009.7U patent/CN210180152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160357A (en) * | 2019-06-15 | 2019-08-23 | 黄冈市中瓷朗能窑炉有限公司 | A kind of nitridation reaction continuous tunnel formula device |
| CN111578696A (en) * | 2020-05-27 | 2020-08-25 | 山西中齐锐能高温材料有限公司 | Novel refractory material firing tunnel kiln |
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