Push boat type reduction furnace capable of passivating

Abstract

The utility model belongs to the technical field of reduction furnaces, and particularly relates to a boat pushing type reduction furnace capable of passivating treatment, which comprises a boat pushing device and a heating furnace, a boat is arranged at the right end of the boat pushing device, a connecting mechanism is arranged on the boat, a furnace tube is arranged on the connecting mechanism, and the furnace tube is fixedly connected with the heating furnace. The right end of the furnace tube is fixedly connected with a cooling sleeve, and a pressure relief mechanism is arranged on the cooling sleeve. The pressure spring acts on the sealing plate, so that the sealing plate is elastically compressed in the connecting cylinder, air pressure in the cooling sleeve is conveniently discharged when being too large, potential safety hazards caused by temperature rise expansion of inert gas in the cooling sleeve are avoided, meanwhile, the screw disc and the connecting cylinder are rotated to do threaded motion, the pressure spring can be compressed, the pre-tightening force of the pressure spring can be adjusted, and the service life of the cooling sleeve is prolonged. And therefore, the jacking air pressure of the sealing plate is changed, and the air pressure in the cooling sleeve is convenient to adjust.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reduction furnace, concretely is a kind of push boat type reduction furnace of passivation treatment. BACKGROUND

[0002] The utility model discloses a kind of push boat type reduction furnaces of passivation treatment, it includes push boat device, furnace pipe, heating furnace and cooling sleeve pipe, push boat device and cooling sleeve pipe are located at the opposite sides of heating furnace, furnace pipe passes through heating furnace and cooling sleeve pipe in turn, one end of furnace pipe passes through the side wall of heating furnace towards push boat device and forms into boat mouth, the other end passes out of cooling sleeve pipe and forms into boat mouth, hydrogen inlet pipe is installed on furnace pipe between heating furnace and cooling sleeve pipe;Cooling water inlet pipe and cooling water outlet pipe that communicate the inner chamber of cooling sleeve pipe are installed on cooling sleeve pipe, inert gas inlet pipe and inert gas outlet pipe that communicate the inner chamber of furnace pipe are installed on furnace pipe;When working, inert gas is passed into furnace pipe, material is protected, metal powder can be passivated under inert gas atmosphere, reduce the surface activity of metal powder, after discharging, metal powder can be effectively prevented from oxidizing or self-igniting in air, to ensure the quality of product.But the device when using, installation connection between boat dish on device and furnace pipe can exist error, leading to low installation precision, simultaneously, the gas temperature rise in cooling sleeve pipe of device can lead to the gas pressure rise in cooling sleeve pipe, and safety hazard is easily generated.Therefore, it needs to be improved. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of push boat type reduction furnace of passivation treatment, solve the installation connection between boat dish on device and furnace pipe can exist error, leading to low installation precision, simultaneously, the gas temperature rise in cooling sleeve pipe of device can lead to the gas pressure rise in cooling sleeve pipe, and safety hazard is easily generated Problem.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of push boat type reduction furnace of passivation treatment, including push boat device and heating furnace, the right end of the push boat device is provided with boat dish, the boat dish is provided with connecting mechanism, the connecting mechanism is provided with furnace pipe, the furnace pipe is fixedly connected with heating furnace, the right end of the furnace pipe is fixedly connected with cooling sleeve pipe, the cooling sleeve pipe is provided with pressure relief mechanism.

[0005] Preferably, the connecting mechanism comprises a retaining ring, the retaining ring is fixedly connected with a furnace tube, a sliding sleeve is slidably connected with the outer side of the furnace tube, the sliding sleeve is slidably connected with a boat, an end cover is movably connected with the outer side of the boat, the end cover is threadedly connected with the sliding sleeve, a guide rod is slidably connected with the inner side of the sliding sleeve, the guide rod is fixedly connected with the retaining ring, a baffle is welded to the right end of the guide rod, and springs are arranged on the outer side of the guide rod.

[0006] Preferably, one end of the spring is fixedly connected with the baffle, and the other end of the spring is fixedly connected with the sliding sleeve.

[0007] Preferably, the pressure relief mechanism comprises a connecting cylinder, the connecting cylinder is fixedly connected with a cooling jacket, a gas outlet hole is formed in the cylinder wall of the connecting cylinder, a sealing plate is slidably connected in the connecting cylinder, a screw disc is threadedly connected in the connecting cylinder, a sliding cylinder is welded to the lower end of the screw disc, and a compression spring is arranged in the connecting cylinder. The sealing plate is elastically pressed in the connecting cylinder under the action of the compression spring, so that the gas pressure in the cooling jacket can be discharged when the gas pressure is too large, and safety hazards caused by the expansion of inert gas in the cooling jacket due to temperature rise are avoided. Meanwhile, the compression spring can be compressed by rotating the screw disc and the connecting cylinder in a threaded manner, the pre-tightening force of the compression spring can be adjusted, the top opening gas pressure of the sealing plate can be changed, and the gas pressure in the cooling jacket can be adjusted.

[0008] Preferably, the sliding cylinder is slidably connected with a sliding rod, and the sliding rod is fixedly connected with the sealing plate.

[0009] Preferably, one end of the compression spring is fixedly connected with the sealing plate, and the other end of the compression spring is fixedly connected with the screw disc.

[0010] Compared with the prior art, the utility model has the advantages of the following:

[0011] 1、The utility model discloses a sliding sleeve is slid on the outer side of the furnace tube to the outer side of the boat, and the end cover and the sliding sleeve are rotated and are threadedly moved, and then the sliding sleeve and the boat are connected conveniently, the furnace tube and the boat are disassembled and assembled conveniently, and the installation error between the furnace tube and the boat is reduced.

[0012] 2. The utility model discloses a compression spring is acted on the sealing plate, make the sealing plate be pressed in the connecting cylinder with elasticity, make the cooling jacket pipe when the overpressure of inside air is convenient to discharge, avoid the safety hidden danger that the inert gas in the cooling jacket pipe heats up and expands, simultaneously, through the screw thread movement of rotating screw disc and connecting cylinder, can to compression spring compression, adjust the pre -tightening force of compression spring, and then make the top open air pressure change of sealing plate, make the air pressure in the cooling jacket pipe convenient to adjust. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure solid of the utility model Figure One ;

[0014] Figure 2 It is the overall structure solid of the utility model Figure Two ;

[0015] Figure 3 It is the connecting mechanism sectional view of the utility model Figure 1 ;

[0016] Figure 4 It is the connecting cylinder sectional view of the utility model Figure 1 .

[0017] In the drawing: 1, push boat device, 2, boat dish, 3, connecting mechanism, 4, furnace tube, 5, heating furnace, 6, cooling jacket pipe, 7, pressure relief mechanism, 31, baffle ring, 32, sliding sleeve, 33, end cover, 34, guide rod, 35, baffle, 36, spring, 71, connecting cylinder, 72, air hole, 73, sealing plate, 74, screw disc, 75, sliding cylinder, 76, sliding rod, 77, compression spring. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] Please refer to Figure 1 and Figure 2 , a kind of passivation processing push boat type reduction furnace, including push boat device 1 and heating furnace 5, push boat device 1's right end is provided with boat dish 2, boat dish 2 is provided with connecting mechanism 3, connecting mechanism 3 is provided with furnace tube 4, furnace tube 4 and heating furnace 5 are fixedly connected, the right end of furnace tube 4 is fixedly connected with cooling jacket pipe 6, cooling jacket pipe 6 is provided with pressure relief mechanism 7.

[0020] Please refer to Figure 1 and Figure 3The connecting mechanism 3 comprises a blocking ring 31 fixedly connected with the furnace tube 4, a sliding sleeve 32 slidingly connected with the outer side of the furnace tube 4, the sliding sleeve 32 being slidingly connected with the boat 2, an end cover 33 movably connected with the outer side of the boat 2, the end cover 33 being threadedly connected with the sliding sleeve 32, a guide rod 34 slidingly connected with the inner side of the sliding sleeve 32, the guide rod 34 being fixedly connected with the blocking ring 31, a baffle 35 welded to the right end of the guide rod 34, a spring 36 arranged on the outer side of the guide rod 34, one end of the spring 36 being fixedly connected with the baffle 35, and the other end of the spring 36 being fixedly connected with the sliding sleeve 32. The spring 36 is arranged to facilitate the resetting of the sliding sleeve 32. The sliding sleeve 32 is moved to slide on the outer side of the furnace tube 4 to slide on the outer side of the boat 2, and the end cover 33 and the sliding sleeve 32 are threadedly moved to facilitate the connection between the sliding sleeve 32 and the boat 2, thereby facilitating the disassembly and assembly of the furnace tube 4 and the boat 2 and reducing the installation error between the furnace tube 4 and the boat 2.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 4 The pressure relief mechanism 7 comprises a connecting cylinder 71 fixedly connected with the cooling jacket 6, the cylinder wall of the connecting cylinder 71 being provided with an air outlet hole 72, the inner side of the connecting cylinder 71 being slidingly connected with a sealing plate 73, the inner side of the connecting cylinder 71 being threadedly connected with a screw disc 74, the lower end of the screw disc 74 being welded with a sliding cylinder 75, the inner side of the sliding cylinder 75 being slidingly connected with a sliding rod 76, the sliding rod 76 being fixedly connected with the sealing plate 73, the inner side of the connecting cylinder 71 being provided with a compression spring 77, one end of the compression spring 77 being fixedly connected with the sealing plate 73, and the other end of the compression spring 77 being fixedly connected with the screw disc 74. The sliding rod 76 and the sliding cylinder 75 are arranged to guide the movement of the sealing plate 73. The compression spring 77 is arranged to elastically press the sealing plate 73 downward. The compression spring 77 acts on the sealing plate 73 to elastically press the sealing plate 73 in the connecting cylinder 71, so that the excessive gas pressure in the cooling jacket 6 can be easily discharged, and the safety hazard caused by the expansion of the inert gas in the cooling jacket 6 due to temperature rise can be avoided. Meanwhile, the compression of the compression spring 77 and the adjustment of the pre-tightening force of the compression spring 77 can be realized by threadedly moving the screw disc 74 and the connecting cylinder 71, so that the top opening gas pressure of the sealing plate 73 can be changed, and the gas pressure in the cooling jacket 6 can be easily adjusted.

[0022] The utility model discloses a specific implementation process as follows: when installing, manually sliding the sliding sleeve 32, so that the sliding sleeve 32 moves to the right and slides to the outside of the boat dish 2, then the sliding end cover 33 and the sliding sleeve 32 contact, rotate the end cover 33, the end cover 33 rotates and the sliding sleeve 32 does the screw thread movement, and then the sliding sleeve 32 is fixed at the outside of the boat dish 2, through moving the sliding sleeve 32 and sliding to the outside of the boat dish 2 outside the furnace tube 4, and rotating the end cover 33 and the sliding sleeve 32 do the screw thread movement, and then the sliding sleeve 32 and the boat dish 2 are convenient to connect, and then the furnace tube 4 and the boat dish 2 are convenient to disassemble and assemble, and reduce the installation error between the furnace tube 4 and the boat dish 2, when the gas pressure in the cooling sleeve pipe 6 is too large, the gas pressure up top sealing plate 73, make sealing plate 73 move up, and then make the spring 36 be compressed, simultaneously, make the cooling sleeve pipe 6 and the connecting cylinder 71 communicate, make the gas in the cooling sleeve pipe 6 discharge, when the gas pressure is less than the pressure of the compression spring 77, the sealing plate 73 resets, and the connecting cylinder 71 is closed, through the compression spring 77 acting on the sealing plate 73, make the sealing plate 73 be elastically compressed in the connecting cylinder 71, make the gas pressure in the cooling sleeve pipe 6 be convenient to discharge when too large, avoid the safety hidden danger produced when the inert gas in the cooling sleeve pipe 6 heats and expands, simultaneously, through rotating the screw disc 74 and the connecting cylinder 71 do the screw thread movement, can compress the compression spring 77, adjust the pre-tightening force of the compression spring 77, and then make the top open gas pressure of the sealing plate 73 change, make the gas pressure in the cooling sleeve pipe 6 convenient to adjust.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pusher-type reduction furnace, which can be treated with passivation, comprising a pusher device (1) and a heating furnace (5), characterized in that: The right end of the boat pushing device (1) is provided with a boat dish (2), the boat dish (2) is provided with a connecting mechanism (3), the connecting mechanism (3) is provided with a furnace tube (4), the furnace tube (4) and the heating furnace (5) are fixedly connected, the right end of the furnace tube (4) is fixedly connected with a cooling sleeve (6), and the cooling sleeve (6) is provided with a pressure relief mechanism (7); The connecting mechanism (3) comprises a blocking ring (31), the blocking ring (31) and the furnace tube (4) are fixedly connected, the outer side of the furnace tube (4) is slidably connected with a sliding sleeve (32), the sliding sleeve (32) and the boat dish (2) are slidably connected, the outer side of the boat dish (2) is movably connected with an end cover (33), the end cover (33) and the sliding sleeve (32) are connected through threads, the inside of the sliding sleeve (32) is slidably connected with a guide rod (34), the guide rod (34) and the blocking ring (31) are fixedly connected, the right end of the guide rod (34) is welded with a baffle (35), and the outer side of the guide rod (34) is provided with a spring (36); The pressure relief mechanism (7) comprises a connecting barrel (71), the connecting barrel (71) and the cooling sleeve (6) are fixedly connected, the barrel wall of the connecting barrel (71) is provided with an air outlet hole (72), the inside of the connecting barrel (71) is slidably connected with a sealing plate (73), the inside of the connecting barrel (71) is connected with a screw disc (74) through threads, the lower end of the screw disc (74) is welded with a sliding cylinder (75), and the inside of the connecting barrel (71) is provided with a compression spring (77).

2. A pusher reduction furnace according to claim 1, wherein: One end of the spring (36) is fixedly connected with the baffle (35), and the other end of the spring (36) is fixedly connected with the sliding sleeve (32).

3. A pusher reduction furnace according to claim 1, wherein: The inside of the sliding cylinder (75) is slidably connected with a sliding rod (76), and the sliding rod (76) and the sealing plate (73) are fixedly connected.

4. A pusher reduction furnace according to claim 1, wherein: One end of the compression spring (77) is fixedly connected with the sealing plate (73), and the other end of the compression spring (77) is fixedly connected with the screw disc (74).

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