CN214937761U

CN214937761U - High-temperature nitriding quenching device of vacuum pulse carburizing furnace

Info

Publication number: CN214937761U
Application number: CN202120416324.9U
Authority: CN
Inventors: 杨洪波
Original assignee: XINGUANG INDUSTRIAL HEAT TREATMENT (KUNSHAN) CO LTD
Current assignee: XINGUANG INDUSTRIAL HEAT TREATMENT (KUNSHAN) CO LTD
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-30
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a vacuum pulse carburizing furnace high temperature nitriding guenching unit, including furnace body and quenching bath, furnace body top intermediate position department installs the feed inlet, the closing cap is installed on the feed inlet top, the nitrogen gas intake pipe is installed to furnace body top one side, the furnace body top deviates from nitrogen gas intake pipe one side and installs the ammonia intake pipe, furnace body both sides intermediate position department all installs the control box, both sides the alarm is all installed to control box top one side, the quenching bath is installed to support column one side of nitrogen gas intake pipe one side, quenching bath front surface intermediate position department installs the timetable, the furnace body bottom is located nitrogen gas intake pipe one side and is equipped with the discharge gate. The utility model provides a current device nitrogen gas and ammonia proportional control simple structure, the product nitriding quality is not good, and no flue gas processing apparatus during oil quenching, unable processing oil quenching flue gas, the problem of polluting the production environment has improved the utility model discloses a quenching quality.

Description

High-temperature nitriding quenching device of vacuum pulse carburizing furnace

Technical Field

The utility model relates to the technical field of carburization, in particular to a high-temperature nitriding quenching device of a vacuum pulse carburizing furnace.

Background

At present, at home and abroad, carburizing furnaces, traditional air medium furnaces, melt furnaces and the like are basically eliminated, and equipment manufacturers stop producing traditional furnace types. The existing heat treatment carburizing equipment which is basically adopted: electric heating furnace, controllable atmosphere carburizing furnace, pre-vacuum carburizing furnace, vacuum carburizing furnace and other equipment. The method is divided into the following steps according to the type of the heat treatment carburizing furnace: the furnace types such as box type, well type, cover type, rotary bottom and through type, the vacuum equipment technology is developed rapidly in recent years, various vacuum technologies break through continuously, and vacuum equipment such as vacuum annealing, vacuum quenching, vacuum nitriding, vacuum carburizing and the like appears.

The existing vacuum nitriding quenching device has the advantages of simple structure for controlling the proportion of nitrogen and ammonia, poor nitriding quality of products, no smoke treatment device during oil quenching, incapability of treating oil quenching smoke and pollution to production environment, and therefore, the high-temperature nitriding quenching device of the vacuum pulse carburizing furnace is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum pulse carburizing furnace high temperature nitriding quenching device possesses the accurate advantage of gas control, has solved current device nitrogen gas and ammonia proportional control simple structure, and the product nitriding quality is not good, and does not have flue gas processing apparatus when oil quenching, can't handle oil quenching flue gas, pollutes the problem of production environment.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature nitriding quenching device of a vacuum pulse carburizing furnace comprises a furnace body and a quenching tank, wherein a feed inlet is arranged at the middle position of the top end of the furnace body, a seal cover is arranged at the top end of the feed inlet, a nitrogen inlet pipe is arranged at one side of the top end of the furnace body, an ammonia inlet pipe is arranged at one side of the top end of the furnace body, which is far away from the nitrogen inlet pipe, control boxes are arranged at the middle positions of two sides of the furnace body, alarms are arranged at one sides of the top ends of the control boxes, the quenching tank is arranged at one side of a support pillar at one side of the nitrogen inlet pipe, a time meter is arranged at the middle position of the front surface of the quenching tank, a discharge port is arranged at one side of the bottom end of the furnace body, which is close to the front surface position, and a position of the rear surface, a limiting plate is arranged at one side of the bottom end of the furnace body, which is adjacent to the limiting plate, and a displacement bottom plate is arranged at the gap position at one side of the limiting plate, the utility model discloses a displacement bottom plate, including furnace body, discharge gate, regulating rod, adjusting rod, displacement bottom plate, ammonia intake pipe, fixed station, discharge gate one side intermediate position department is deviated from to the furnace body bottom, the inside intermediate position department of fixed station has cup jointed the regulation pole, it installs motor A to adjust the pole to be located fixed station one side, adjust the pole end and install in the inside intermediate position department of displacement bottom plate, the inside top of furnace body is close to ammonia intake pipe one side and installs temperature sensor.

Preferably, the furnace body is located nitrogen gas intake pipe one side and is close to top position department and install motor B, motor B output shaft has cup jointed the swivel sleeve, the swivel sleeve surface deviates from furnace body one side and installs the bracing piece, the terminal bottom position department of bracing piece installs the smoke absorption cover through the smoking pipe.

Preferably, the support column is all installed in four angular positions department in furnace body bottom, the support column is close to bottom intermediate position department and installs the backup pad, backup pad top intermediate position department installs the air exhauster, air exhauster one side is located the backup pad upper end and installs exhaust gas treater through the exhaust-gas line, the blast pipe is installed on exhaust gas treater top, air exhauster top intermediate position department is connected in smoking pipe top position department through the smoking hose.

Preferably, the bottom end of the furnace body is provided with a discharge chute at the position close to the front surface and the rear surface through a support frame, and the tail end of the discharge chute is arranged at the top end of one side of the quenching bath.

Preferably, the heating pipe is installed on the outer surface of the furnace body, and the furnace body is located on the outer surface of the heating pipe and is provided with the heat insulation layer.

Preferably, a fixed plate is installed on one side, deviating from the fixed station, of the bottom end of the furnace body, and the tail end of the displacement bottom plate can be clamped inside the fixed plate.

Preferably, the nitrogen gas inlet pipe and the ammonia gas inlet pipe are close to the top end of the furnace body and are provided with electronic flow meters, and the nitrogen gas inlet pipe and the ammonia gas inlet pipe are arranged on one side of the electronic flow meters and are provided with pressure monitors.

Preferably, a material guide plate is installed at one side, located at the discharge port, of the bottom end inside the furnace body, and the material guide plate is obliquely arranged towards one side of the discharge port.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up electronic flow meter and pressure monitor, reach the effect that accurate control ammonia, nitrogen gas let in the volume, be close to furnace body top position department at nitrogen gas intake pipe and ammonia intake pipe and all set up electronic flow meter, be located electronic flow meter one side at nitrogen gas intake pipe and ammonia intake pipe and all set up pressure monitor to solve nitrogen gas and ammonia proportional control simple structure, the not good problem of product nitriding quality has improved the utility model discloses a nitriding quality.

2. The utility model discloses an adjacent one side clearance position department of limiting plate in both sides sets up the displacement bottom plate, reach the effect of being convenient for take out the work piece fast, it sets up the discharge gate to be located nitrogen gas intake pipe one side in the furnace body bottom, it all sets up the limiting plate to be close to front surface position department and rear surface position department in discharge gate one side to be located the furnace body bottom, it sets up the fixed station to deviate from discharge gate one side intermediate position department in the furnace body bottom, set up the regulation pole in the inside intermediate position department of fixed station, it sets up motor A to be located fixed station one side to adjust the pole, adjust the pole end and set up in the inside intermediate position department of displacement bottom plate, in order to solve the artifical work piece of taking, transport to quenching bath, use the not good problem of convenience, improved the utility model discloses a convenience in use.

3. The utility model discloses a set up the smoke absorption hood through the smoking pipe in terminal bottom position department of bracing piece, reach and take out from the effect of quenching waste gas, set up the air exhauster in backup pad top intermediate position department, it sets up exhaust gas treatment ware through the exhaust pipe to be located the backup pad upper end in air exhauster one side, set up the blast pipe on the exhaust gas treatment ware top, set up smoking hose connection in smoking pipe top intermediate position department in air exhauster top intermediate position department to no smoke treatment device when solving the oil quenching, can't handle the oil quenching flue gas, the problem of pollution production environment has improved the utility model discloses a use the feature of environmental protection.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the furnace body of the present invention;

fig. 3 is an enlarged schematic view of a in fig. 2.

In the figure: 1. a furnace body; 2. an exhaust pipe; 3. a support pillar; 4. an exhaust gas processor; 5. an exhaust gas pipe; 6. an exhaust fan; 7. a support plate; 8. a time schedule; 9. a quenching bath; 10. a discharge chute; 11. a smoke suction hood; 12. a smoking pipe; 13. a smoking hose; 14. a support bar; 15. a nitrogen inlet pipe; 16. a feed inlet; 17. sealing the cover; 18. an ammonia gas inlet pipe; 19. a material guide plate; 20. a fixed table; 21. a motor A; 22. adjusting a rod; 23. a limiting plate; 24. a displacement base plate; 25. a support frame; 26. a discharge port; 27. heating a tube; 28. a control box; 29. a motor B; 30. a pressure monitor; 31. a rotating sleeve; 32. an electronic flow meter; 33. a temperature sensor; 34. an alarm; 35. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the utility model provides a technical solution of a high temperature nitriding quenching device for vacuum pulse carburizing furnace: a high-temperature nitriding quenching device of a vacuum pulse carburizing furnace comprises a furnace body 1 and a quenching tank 9, wherein a feed inlet 16 is arranged at the middle position of the top end of the furnace body 1, a seal cover 17 is arranged at the top end of the feed inlet 16, a nitrogen inlet pipe 15 is arranged at one side of the top end of the furnace body 1, an ammonia inlet pipe 18 is arranged at one side of the top end of the furnace body 1, which is far away from the nitrogen inlet pipe 15, control boxes 28 are arranged at the middle positions of two sides of the furnace body 1, alarms 34 are arranged at one sides of the top ends of the control boxes 28, the quenching tank 9 is arranged at one side of a support pillar 3 at one side of the nitrogen inlet pipe 15, a time table 8 is arranged at the middle position of the front surface of the quenching tank 9, a discharge port 26 is arranged at one side of the bottom end of the furnace body 1, a position close to the front surface and a position of the rear surface are respectively provided with a limiting plate 23, and a displacement bottom plate 24 is arranged at a gap position at one side adjacent to the limiting plates 23, a fixed table 20 is arranged at the middle position of one side of the bottom end of the furnace body 1 departing from the discharge port 26, an adjusting rod 22 is sleeved at the middle position inside the fixed table 20, a motor A21 is arranged at one side of the adjusting rod 22 positioned on the fixed table 20, the tail end of the adjusting rod 22 is arranged at the middle position inside the displacement bottom plate 24, a temperature sensor 33 is arranged at one side of the top end inside the furnace body 1 close to the ammonia gas inlet pipe 18, a motor B29 is arranged at one side of the furnace body 1 positioned on the nitrogen gas inlet pipe 15 close to the top end, a rotating sleeve 31 is sleeved on an output shaft of the motor B29, a supporting rod 14 is arranged at one side of the outer surface of the rotating sleeve 31 departing from the furnace body 1, a smoke absorbing hood 11 is arranged at the bottom end position of the supporting rod 14 through a smoke absorbing pipe 12 and used for cleaning quenching smoke, supporting columns 3 are arranged at four angular positions at the bottom end of the furnace body 1, a supporting plate 7 is arranged at the middle position near the bottom end, and an exhaust fan 6 is arranged at the middle position at the top end of the supporting plate 7, an exhaust gas processor 4 is arranged at the upper end of the supporting plate 7 on one side of the exhaust fan 6 through an exhaust gas pipe 5 and used for processing quenching smoke, an exhaust pipe 2 is arranged at the top end of the exhaust gas processor 4, and the middle position of the top end of the exhaust fan 6 is connected to the top end of a smoking pipe 12 through a smoking hose 13.

Referring to fig. 2 and fig. 3, the technical solution of the high temperature nitriding quenching device for vacuum pulse carburizing furnace provided by the present invention is as follows: a high-temperature nitriding quenching device of a vacuum pulse carburizing furnace comprises a furnace body 1 and a quenching bath 9, wherein a feed inlet 16 is arranged at the middle position of the top end of the furnace body 1, a seal cover 17 is arranged at the top end of the feed inlet 16, a nitrogen inlet pipe 15 is arranged at one side of the top end of the furnace body 1, an ammonia inlet pipe 18 is arranged at one side of the top end of the furnace body 1, which is far away from the nitrogen inlet pipe 15, electronic flow meters 32 are respectively arranged at the positions, close to the top ends of the furnace body 1, of the nitrogen inlet pipe 15 and the ammonia inlet pipe 18 for ensuring accurate ammonia and nitrogen proportioning, pressure monitors 30 are respectively arranged at the sides, which are positioned at the electronic flow meters 32, so that carburizing pressure is convenient to control, a material guide plate 19 is arranged at one side, which is positioned at a discharge port 26, at the bottom end inside the furnace body 1, the material guide plate 19 is obliquely arranged towards the discharge port 26 for product taking out, and a control box 28 is respectively arranged at the middle positions at two sides of the furnace body 1, an alarm 34 is arranged on one side of the top end of each of the two side control boxes 28, a quenching bath 9 is arranged on one side of a support pillar 3 on one side of a nitrogen gas inlet pipe 15, a time meter 8 is arranged at the middle position of the front surface of the quenching bath 9, a discharge port 26 is arranged on one side of the bottom end of the furnace body 1 on the nitrogen gas inlet pipe 15, a limit plate 23 is arranged on one side of the bottom end of the furnace body 1 on the discharge port 26 close to the front surface and on the rear surface, a displacement bottom plate 24 is arranged at the gap position on one side adjacent to the limit plates 23 on the two sides, a fixed table 20 is arranged at the middle position of the bottom end of the furnace body 1 on the side away from the discharge port 26, an adjusting rod 22 is sleeved at the middle position inside the fixed table 20, a motor A21 is arranged on one side of the adjusting rod 22 on the fixed table 20, the tail end of the adjusting rod 22 is arranged at the middle position inside the displacement bottom plate 24, a fixed plate 35 is arranged on one side of the bottom end of the furnace body 1 away from the fixed table 20, and the tail end of the displacement bottom plate 24 can be clamped inside the fixed plate 35, the bottom of the furnace body 1 is close to the front surface position and the rear surface position and is provided with a discharge chute 10 through a support frame 25, the tail end of the discharge chute 10 is arranged at the top end of one side of the quenching bath 9, the top end of the interior of the furnace body 1 is close to one side of an ammonia gas inlet pipe 18 and is provided with a temperature sensor 33, the outer surface of the furnace body 1 is provided with a heating pipe 27, and the furnace body 1 is arranged on the outer surface of the heating pipe 27 and is provided with a heat insulation layer.

The working principle is as follows: after the utility model is installed, a workpiece is put into the furnace body 1 through the feed inlet 16, the temperature of the workpiece is raised through the heating pipe 27, the product is preheated, after the installation, nitrogen is led into the furnace body 1 through the nitrogen inlet pipe 15, the electronic flowmeter 32 and the pressure monitor 30, the nitrogen is nitrided and insulated through the heating pipe 27, after the completion, ammonia is led into the furnace body 1 through the ammonia inlet pipe 18, the electronic flowmeter 32 and the pressure monitor 30, the ammonia is nitrided and insulated through the heating pipe 27, after the completion, the motor A21 is started, the adjusting rod 22 is driven to rotate through the motor A21, so as to drive the displacement bottom plate 24 to laterally move, the workpiece is led into the quenching tank 9 through the discharge chute 10, the workpiece is oil quenched, the exhaust fan 6 is started simultaneously, the quenching smoke is pumped away through the smoke suction pipe 12, the smoke suction hose 13 and the smoke suction hood 11, and is conveyed to the waste gas processor 4 through the waste gas pipe 5, the waste gas is discharged from the exhaust pipe 2 after being treated by the waste gas processor 4, and accordingly, the working process of the equipment is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vacuum pulse carburizing furnace high temperature nitriding guenching unit, includes furnace body (1) and quenching bath (9), its characterized in that: the utility model discloses a quenching furnace, including furnace body (1), furnace body (1) top intermediate position department install feed inlet (16), closing cap (17) are installed on feed inlet (16) top, nitrogen gas intake pipe (15) are installed to furnace body (1) top one side, furnace body (1) top deviates from nitrogen gas intake pipe (15) one side and installs ammonia intake pipe (18), control box (28) are all installed to furnace body (1) both sides intermediate position department, both sides alarm (34) are all installed to control box (28) top one side, quenching bath (9) are installed to support column (3) one side of nitrogen gas intake pipe (15) one side, surface intermediate position department installs timetable (8) before quenching bath (9), furnace body (1) bottom is located nitrogen gas intake pipe (15) one side and is equipped with discharge gate (26), limiting plate (23) are all installed near front surface position department and back surface position department to furnace body (1) bottom is located discharge gate (26) one side, both sides displacement bottom plate (24) are installed to the adjacent one side clearance position department of limiting plate (23), furnace body (1) bottom deviates from discharge gate (26) one side intermediate position department and installs fixed station (20), regulation pole (22) have been cup jointed to the inside intermediate position department of fixed station (20), it installs motor A (21) to be located fixed station (20) one side to adjust pole (22), adjust pole (22) end and install in the inside intermediate position department of displacement bottom plate (24), furnace body (1) inside top is close to ammonia intake pipe (18) one side and installs temperature sensor (33).

2. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: furnace body (1) is located nitrogen gas intake pipe (15) one side and is close to top position department and installs motor B (29), motor B (29) output shaft has cup jointed swivel housing (31), swivel housing (31) surface deviates from furnace body (1) one side and installs bracing piece (14), bracing piece (14) terminal bottom position department installs smoke absorption hood (11) through smoke absorption pipe (12).

3. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: support column (3) are all installed to four angular position departments in furnace body (1) bottom, support column (3) are close to bottom intermediate position department and install backup pad (7), backup pad (7) top intermediate position department installs air exhauster (6), air exhauster (6) one side is located backup pad (7) upper end and installs exhaust-gas treatment ware (4) through exhaust-gas duct (5), blast pipe (2) are installed on exhaust-gas treatment ware (4) top, air exhauster (6) top intermediate position department connects in smoking pipe (12) top position department through smoking hose (13).

4. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: the bottom end of the furnace body (1) is close to the front surface position and the rear surface position, and is provided with a discharge chute (10) through a support frame (25), and the tail end of the discharge chute (10) is arranged at the top end position of one side of the quenching tank (9).

5. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: the heating pipe (27) is installed to furnace body (1) surface, furnace body (1) is located heating pipe (27) surface and installs the insulating layer.

6. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: and a fixing plate (35) is installed on one side of the bottom end of the furnace body (1) departing from the fixing table (20), and the tail end of the displacement bottom plate (24) can be clamped inside the fixing plate (35).

7. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: the nitrogen gas intake pipe (15) and ammonia gas intake pipe (18) are close to furnace body (1) top position department and all install electronic flowmeter (32), nitrogen gas intake pipe (15) and ammonia gas intake pipe (18) are located electronic flowmeter (32) one side and all install pressure monitor (30).

8. The high-temperature nitriding quenching device of the vacuum pulse carburizing furnace according to claim 1, characterized in that: the material guide plate (19) is installed at one side, located at the discharge port (26), of the bottom end in the furnace body (1), and the material guide plate (19) is arranged towards one side of the discharge port (26) in an inclined mode.