Windproof structure of furnace end of reduction furnace body

Abstract

The utility model discloses a wind-proof structure for a furnace end of a reduction furnace body, which comprises the reduction furnace body and a blanking furnace body which are provided with observation areas at intervals and connected through a material track, and the furnace end of the reduction furnace body is provided with a sintering spray gun; fixed wind shields are symmetrically arranged on two sides of the reduction furnace body and the blanking furnace body, and the interval between the two is equal to the length of the observation area; a supporting table is arranged above the discharging end of the discharging furnace body, a rotating disc is arranged on the supporting table, the rotating disc fixes the movable wind shield through a connecting shaft, a transmission gear is arranged at the bottom of the rotating disc, a driving gear is arranged in the supporting table and meshed with the transmission gear, and the driving gear is connected with an operating shaft and extends to the outer side. The operation shaft is rotated to drive the movable wind shield to rotate around the axis, so that the movable wind shield is in sealed butt joint with the fixed wind shield on one side, and the problems that a traditional open observation area is prone to being interfered by cross ventilation, flames of the sintering spray gun deviate, and temperature distribution is uneven are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder metallurgy equipment field, especially a reduction furnace body furnace head windproof structure. BACKGROUND

[0002] In the traditional powder metallurgy industry, the open interval design is used between the reduction furnace body and the blanking furnace body to realize material belt transmission and flame observation, but the interval area is directly exposed to the external environment, which is easy to form draught, resulting in the sintering spray gun flame being impacted by the airflow and being violently fluctuated or even being extinguished, seriously affecting the sintering temperature uniformity and material reaction stability; at the same time, the strong wind wraps high-temperature dust or spark diffusion, and there is a fire hazard, and the open structure cannot dynamically adjust the windproof measures according to the wind direction change, resulting in poor process controllability, energy waste and coexistence of safety risks. SUMMARY

[0003] The purpose achieved by the utility model is to provide a reduction furnace body furnace head windproof structure, which solves the problem that the traditional open observation area is easily disturbed by draught, resulting in sintering spray gun flame deviation and uneven temperature distribution.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a reduction furnace body furnace head windproof structure, comprising a reduction furnace body and a blanking furnace body, an observation area is arranged between the reduction furnace body and the blanking furnace body, a material belt is arranged between the reduction furnace body and the blanking furnace body, a sintering spray gun is arranged at the furnace head of the reduction furnace body, fixed wind baffles are symmetrically arranged on both sides of the reduction furnace body and the blanking furnace body, and an interval with the same length as the observation area is reserved between the fixed wind baffles on both sides;

[0005] Further comprising a movable wind baffle, the movable wind baffle is arranged in parallel to the fixed wind baffles, and the length of the movable wind baffle is the same as the length of the observation area;

[0006] A supporting table is arranged above the blanking end of the blanking furnace body, a turntable is arranged on the supporting table, and the turntable is fixedly connected with the movable wind baffle through a connecting shaft;

[0007] A transmission gear is arranged at the bottom of the turntable, a drive gear meshing with the transmission gear is arranged in the supporting table, and the drive gear is connected with an operation shaft extending to the outside of the supporting table;

[0008] The movable wind baffle is driven to rotate around the axis by rotating the operation shaft, so that the movable wind baffle can be selectively sealed and connected with the fixed wind baffle on the left side or the right side.

[0009] Further, the end of the fixed wind shield is provided with a clamping groove, the two ends of the movable wind shield are provided with elastic clamping strips, the inner side of the elastic clamping strip is provided with a sliding rod, the end of the fixed wind shield is provided with a sliding rod hole matched with the sliding rod, the outer side of the sliding rod is sleeved with a spring, one end of the spring is fixed to the elastic clamping strip, and the other end is fixed to the movable wind shield body.

[0010] Further, the two ends of the elastic clamping strip are provided with first inclined chamfers, and the entrance of the clamping groove is provided with second inclined chamfers in the opposite direction of the first inclined chamfers.

[0011] Further, the rotation axis of the rotating disc is perpendicular to the conveying direction of the material track.

[0012] Further, the end of the operating shaft is provided with a manual operating handle.

[0013] Further, the movable wind shield is made of high-temperature-resistant metal plate material, and the height covers the vertical space of the observation area.

[0014] Further, the two sides of the material track are provided with observation platforms, and the observation platforms abut against the fixed wind shield.

[0015] Further, the sintering spray gun is provided with a smoke suction machine above, and a discharging pipe above the discharging end of the discharging furnace body.

[0016] Compared with the prior art, the utility model has the advantages that;

[0017] Specifically, the position of the movable wind shield is selected according to the wind direction, when the left wind is strong, the operating shaft is rotated, the rotating disc is driven to rotate by the driving gear, the movable wind shield is switched from the right side to the left side, the elastic clamping strips at the two ends of the movable wind shield are pressed by the spring in the moving process, the inner side sliding rod is inserted into the sliding rod hole of the fixed wind shield, the inclined chamfer at the end of the clamping strip is matched with the clamping groove chamfer of the fixed wind shield, smooth guidance and close clamping are realized, when the movable wind shield is sealed and connected with the fixed wind shield, a closed space is formed on one side of the observation area, air convection is blocked, the flame of the sintering spray gun is kept stable, the combustion efficiency and the material processing quality are improved, the problem that the traditional open observation area is easily disturbed by the draught, the flame of the sintering spray gun is deviated, and the temperature distribution is uneven is solved, and the material on the transmission belt of the observation area on one side and the flame state of the sintering spray gun are observed. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings:

[0019] Figure 1 It is the whole structure schematic diagram of the reducing furnace body furnace head windproof structure of the utility model;

[0020] Figure 2 Positional diagram of sintering spray gun of the utility model;

[0021] Figure 3 Structural diagram of support table and connecting shaft of the utility model;

[0022] Figure 4 Internal structural diagram of movable wind deflector of the utility model;

[0023] Figure 5 Structural diagram of transmission gear and driving gear of the utility model;

[0024] Figure 6 Overall plan view of the whole of the reduction furnace body and head windproof structure of the utility model.

[0025] In the figure: 1 reduction furnace body, 11 smoking machine, 2 blanking furnace body, 21 blanking pipe, 3 observation area, 4 material track, 5 sintering spray gun, 6 fixed wind deflector, 61 clamping groove, 62 second inverted bevel, 7 movable wind deflector, 71 support table, 72 rotating disc, 73 connecting shaft, 74 transmission gear, 75 driving gear, 76 operating shaft, 761 operating handle, 77 elastic clamping strip, 78 sliding rod hole, 79 sliding rod, 80 spring, 81 first inverted bevel, 9 observation table. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0027] The technical scheme of the utility model will be described in detail below with specific embodiments. The following several specific embodiments can be combined or replaced according to actual conditions, and the same or similar concepts or processes may not be described in some embodiments.

[0028] For example, Figures 1 to 6The utility model provides a reduction furnace body stove head windproof structure, including reduction furnace body 1 and blanking furnace body 2, and the observation area 3 is spaced between reduction furnace body 1 and blanking furnace body 2, be equipped with material track 4 between reduction furnace body 1 with blanking furnace body 2, the stove head of reduction furnace body 1 is equipped with sintering spray gun 5, be equipped with fixed baffle 6 and movable baffle 7 between reduction furnace body 1 and blanking furnace body 2, the both sides symmetry of reduction furnace body 1 with blanking furnace body 2 are equipped with fixed baffle 6, and the same side between fixed baffle also be equipped with the interval same as observation area 3 length, movable baffle 7 with fixed baffle 6 are parallel, the length of movable baffle 7 with the length of observation area 3 same, support platform 71 is set up above blanking end of blanking furnace body 2, is equipped with carousel 72 on support platform 71, be equipped with connecting shaft 73 on carousel 72, connecting shaft 73 is connected with movable baffle 7, and the bottom of carousel 72 is equipped with transmission gear 74, is equipped with driving gear 75 in support platform 71, and driving gear 75 is engaged with transmission gear 74, and driving gear 75 is connected with operating shaft 76, and operating shaft 76 extends out support platform 71, and movable baffle 7 is fixed on carousel 72 of support platform 71 through connecting shaft 73, and the bottom of carousel 72 is equipped with transmission gear 74, and is engaged with driving gear 75 in support platform 71.When operating shaft 76 is rotated to outside, driving gear 75 drives carousel 72 to rotate, and movable baffle 7 rotates around the axis horizontally, realizes the position switching from left side to right side or reverse, when movable baffle and the fixed baffle 6 of a side butt joint, elastic clamping structure is locked automatically, forms one side sealed barrier, blocks the path of draught.

[0029] Specifically, the movable baffle 7 of the utility model can select the position of the movable baffle 7 according to the wind direction, when the left wind is strong, rotate the operating shaft 76, the driving gear 75 drives the carousel 72 to rotate, and the movable baffle 7 is switched from the right side to the left side, when the movable baffle 7 and the fixed baffle 6 are sealed butt joint, the observation area 3 forms a closed space on one side, blocks the air convection, and the flame of the sintering spray gun 5 remains stable, thereby improving the combustion efficiency and the material processing quality, solving the problem that the traditional open observation area 3 is easily disturbed by draught, and at the same time, the material on the transmission belt of the observation area 3 on one side and the flame state of the sintering spray gun 5 are observed.

[0030] The traditional powder metallurgy industry needs to convey the powder into the reduction furnace, which is specifically arranged between the reduction furnace and the discharging furnace, and the material belt is used for conveying between the two, the discharging furnace discharges the material onto the belt, and then the material is conveyed into the reduction furnace 1 through the belt, wherein the reduction furnace 1 and the discharging furnace need to reserve an interval area, the interval area can observe the material on the belt and the flame state of the sintering spray gun, and the interval of the area is easy to form a draught, which can cause the flame sprayed by the sintering spray gun to be affected, the utility model discloses a left-right switching movable wind baffle 7 which can seal one side alone, the interval area is sealed on one side, the formation of the draught is destroyed, and the movable wind baffle 7 can be switched from the left side of the interval to the right side, and also can be switched from the right side to the left side, the purpose of switching is that sometimes the wind from the left side of the observation area 3 is relatively large in the factory, and then the movable wind baffle 7 is moved to the left side, which not only eliminates the formation of the draught, but also can block the wind, and the same reason is that when the wind from the right side of the observation area 3 is relatively large, the movable baffle is switched to the right side to form a wind blocking wall.

[0031] Thirdly, the front end of the fixed wind baffle 6 is provided with a clamping groove 61, and the both ends of the sliding wind baffle are provided with elastic clamping strips 77, when the fixed wind baffle 6 is connected with the movable wind baffle 7, the elastic clamping strips 77 are clamped into the clamping groove 61, and sealing is formed. The elastic effect of the elastic clamping strip 77 is that the both ends of the fixed wind baffle 6 are provided with slide rod holes 78, the inner side of the elastic clamping strip 77 is provided with a slide rod 79, the slide rod 79 is inserted into the slide rod hole 78, and the elastic clamping strip 77 can slide on the movable wind baffle 7, and a spring 80 is sleeved on the outer side of the slide rod 79, one end of the spring 80 is fixed on the elastic clamping strip 77, and the other end is connected to the movable wind baffle 7, the design that the slide rod 79 is inserted into the slide rod hole 78 of the fixed wind baffle 6 on the inner side of the elastic clamping strip 77 and the spring 80 provides continuous elastic force, the self-adapting sealing of the movable and fixed wind baffles 6 is realized, the elastic clamping strip 77 is tightly attached to the inner wall of the clamping groove 61 under the action of the spring 80, and in this process, the elastic clamping strip 77 can automatically compensate deformation under the action of the spring 80, so that the elastic clamping strip 77 can be clamped into the clamping groove 61.

[0032] Thirdly, in order to realize that the movable baffle can smoothly clamp the elastic clamping strip 77 into the clamping groove 61 when rotating, the both ends of the elastic clamping strip 77 are provided with first inverted bevels 81, and the upper end of the fixed wind baffle 6 is provided with second inverted bevels 62 which are opposite to the first inverted bevels 81, so that the elastic clamping strip 77 can be better clamped.

[0033] The both sides of the material belt 4 are provided with observation platforms which are the same height as the upper surface of the material belt 4, so that the operator can stand on the observation platform to drive the operation handle 761 to switch the movable wind baffle 7, and the operator can also observe the material on the material belt 4 and the flame state of the sintering spray gun 5.

[0034] A smoke suction machine 11 is arranged above the sintering spray gun 5, and a discharging pipe 21 is arranged above the discharging end of the discharging furnace body 2. The metal powder subjected to high-temperature sintering generates irritating gas, which is absorbed by the smoke suction machine 11, thereby ensuring the safety of the construction environment. The discharging pipe 21 is used to discharge the material onto the material track 4.

[0035] Both the transmission gear and the drive gear are double helical gears.

Claims

1. A windproof structure for the furnace head of a reduction furnace, comprising a reduction furnace body and a feeding furnace body, wherein an observation area is provided between the reduction furnace body and the feeding furnace body, a material conveyor is provided between the reduction furnace body and the feeding furnace body, and a sintering spray gun is provided at the furnace head of the reduction furnace body, characterized in that: Fixed baffles are symmetrically arranged on both sides of the reduction furnace body and the feeding furnace body. A gap of the same length as the observation area is maintained between the fixed baffles on both sides. A movable baffle is also provided between the fixed baffles. The movable baffle is arranged parallel to the fixed baffles and its length is the same as the length of the observation area. A support platform is provided above the feeding end of the feeding furnace body. A turntable is provided on the support platform. The turntable is fixedly connected to the movable baffle through a connecting shaft. A transmission gear is provided at the bottom of the turntable. A drive gear meshing with the transmission gear is provided in the support platform. The drive gear is connected to an operating shaft extending to the outside of the support platform. Rotating the operating shaft drives the movable baffle to rotate around the axis, so that the movable baffle can selectively seal and connect with the fixed baffle on the left or right side.

2. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, The fixed wind deflector has a snap-fit ​​groove at its end, and the movable wind deflector has elastic clips at both ends. The inner side of the elastic clips has a slide rod, and the fixed wind deflector has a slide rod hole at its end that mates with the slide rod. A spring is sleeved on the outer side of the slide rod, with one end of the spring fixed to the elastic clip and the other end fixed to the movable wind deflector body.

3. The windproof structure of the reduction furnace body and furnace head according to claim 2, characterized in that, The elastic clip has a first inclined chamfer at both ends, and the entrance of the snap-fit ​​groove has a second inclined chamfer in the opposite direction to the first inclined chamfer.

4. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, The rotation axis of the turntable is perpendicular to the material conveying direction of the material track.

5. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, Both the transmission gear and the drive gear are herringbone gears.

6. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, The end of the operating shaft is equipped with a manual operating handle.

7. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, The movable windbreak is made of high-temperature resistant metal sheet, and its height covers the vertical space of the observation area.

8. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, The material track is provided with observation platforms on both sides, and the observation platforms abut against the fixed wind deflector.

9. The windproof structure of the reduction furnace body and furnace head according to claim 1, characterized in that, A smoke extractor is provided above the sintering spray gun, and a feeding pipe is provided above the discharge end of the feeding furnace body.

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