Tungsten oxide reduction furnace capable of rapidly replacing gas and used for tungsten powder production

Abstract

The invention discloses a tungsten oxide reduction furnace capable of rapidly replacing gas and used for tungsten powder production, and relates to the field of tungsten powder production.The tungsten oxide reduction furnace comprises a heat insulation box, the output end of a driving motor extends into the heat insulation box and is fixed to the circle center position of an eccentric wheel, and the outer side of the eccentric wheel is attached to the outer side of an extrusion mechanism; a channel of the oil conveying pipe can be narrowed through driving of the extrusion mechanism; and one side of the knocking mechanism can further drive the rotating mechanism to operate, and driving fan blades fixed to the top of the rotating mechanism rotate in the heat insulation box, so that rapid multi-direction cooling treatment is achieved. According to the tungsten oxide reduction furnace capable of rapidly replacing the gas and used for tungsten powder production, the extrusion mechanism is arranged, through rotation work of the driving motor, the output end of the driving motor can drive the extrusion mechanism to operate through an eccentric wheel, the extrusion mechanism intermittently extrudes the oil conveying pipe, and driving fan blades can rotate in multiple directions; and efficient cooling treatment is further realized.

Description

Technical Field

[0001] The invention relates to the technical field related to tungsten powder production, and in particular to a tungsten oxide reduction furnace for tungsten powder production with rapidly replaced gas. Background Art

[0002] In the production process of tungsten powder, the reduction of tungsten oxide is a key link. At present, the commonly used reduction method in industrial production is to use a reduction furnace and use hydrogen as a reducing agent for reduction. Therefore, in the production process of tungsten powder, a reduction furnace is needed for preparation.

[0003] There are many types of existing tungsten oxide reduction furnaces, but there are still certain problems during use. After the reduction is completed, the metal tungsten inside the reduction furnace needs to be cooled. In order to solve the above defects, reference can be made to the hydrogen reduction furnace for processing ultrafine metal tungsten powder disclosed in the prior art (application number 200820051293.6, published on 2009-08-12 Chinese patent). The reduction furnace increases the length of the furnace tube and is provided with four temperature control zones on the furnace tube, so that the temperature inside the furnace tube is effectively controlled, thereby processing ultrafine metal tungsten powder; at the same time, reference can be made to the high-sealing reduction furnace for tungsten powder production disclosed in the prior art (application number 202321075575.0, published on 2024.02.09 Chinese patent). The reduction furnace can adjust the temperature of the temperature-controlled condenser by installing two sets of front and rear condensers, thereby controlling the temperature inside the reduction furnace box. degree, which can prevent the excessive temperature from affecting the raw material reaction in the reaction pipeline, and effectively improve the safety performance of the reduction furnace; and a steam device for a medium-coarse and super-coarse tungsten powder multi-tube reduction furnace disclosed in the prior art (application number 201621473461.1, published on July 28, 2017) is disclosed. The high-temperature return water main pipe of the furnace drum, the high-temperature return water main pipe of the chassis, the return water main pipe of the tail gas cooler, the high-temperature water vapor inlet main pipe, the tail gas exhaust pipe, the hot steam intake branch pipe, the hot steam supplementary branch pipe, and the outlet pipe of the device are all wrapped with an antifreeze sleeve made of thermal insulation cotton, which not only prevents the water pipe from freezing in the cold winter and causing inconvenience in use, but also reduces the heat loss in the conduction process, further reduces energy consumption, and the whole steam system realizes the recycling of steam and the environmental protection treatment of tail gas, while ensuring the reaction temperature in the multi-tube reduction furnace, and the energy consumption is low.

[0004] Although the above device can perform a certain cooling treatment, there are still certain shortcomings when using it. After the tungsten powder is reduced by hydrogen at high temperature, metallic tungsten and water will be produced. Part of the metallic tungsten may adhere to the inner wall of the furnace body. When the material is unloaded later, the metallic tungsten cannot be unloaded well and residue is likely to occur.

[0005] Therefore, we propose a tungsten oxide reduction furnace for tungsten powder production with rapid gas replacement in order to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a tungsten oxide reduction furnace for tungsten powder production with rapid gas replacement, so as to solve the problem raised in the above background technology that the tungsten powder currently on the market will produce metallic tungsten and water after being reduced by hydrogen at high temperature, and part of the metallic tungsten may adhere to the inner wall of the furnace body. When the material is unloaded later, the metallic tungsten cannot be unloaded well and residue is likely to occur.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tungsten oxide reduction furnace for tungsten powder production with rapid gas replacement, comprising a heat insulation box, a control panel is installed at the outer side of the heat insulation box, and a reaction furnace body is fixedly installed inside the heat insulation box, a feed inlet is provided at the top of the reaction furnace body, and a discharge outlet is provided at the bottom of the reaction furnace body extending out of the bottom of the heat insulation box; an oil conveying part is fixed on the outer surface of the heat insulation box, the output end and the recovery end of the oil conveying part are connected to the two ends of the oil pipeline, and the outer side of the middle part of the oil pipeline is wrapped around the reaction furnace body. The outer surface of the furnace body; a driving motor is fixedly installed on the outer side of the bottom of the heat insulation box, and the output end of the driving motor extends into the interior of the heat insulation box and is fixed to the center position of the eccentric wheel. The outer side of the eccentric wheel is fitted to the outer side of the extrusion mechanism. The drive of the extrusion mechanism can achieve the narrowing of the channel of the oil pipeline. The setting of the extrusion mechanism also realizes the operation of the knocking mechanism, and one side of the knocking mechanism acts on the bottom outer side of the reaction furnace body; one side of the knocking mechanism can also drive the rotating mechanism to operate, and the driving fan blades fixed on the top of the rotating mechanism rotate inside the heat insulation box to achieve rapid multi-directional cooling treatment.

[0008] Preferably, a group of exhaust pipes are connected to the top of the reactor body, and the gas inside the reactor body can be quickly replaced by connecting the exhaust pipes to the pump body. A hydrogen input pipeline is connected to one side of the top of the reactor body close to the exhaust pipes. A heating wire is also provided inside the reactor body, and a drain pipe is also provided at the bottom of the discharge port.

[0009] Preferably, the extrusion mechanism includes a connecting plate that is fitted onto one side of the eccentric wheel, and a moving rod is fixed at a corner position on one side of the connecting plate, the outer side of the moving rod is slidably arranged inside the heat insulation box, and an extrusion block is also fixed at one end of the moving rod that slides out of the outside of the heat insulation box, a return spring is fixed to the outer side of one end of the moving rod close to the connecting plate, and the other end of the return spring is fixed to the inner side of the heat insulation box.

[0010] Preferably, the inner side of the extrusion block is fitted to the outer side of the oil pipeline, the extrusion block forms an extrusion structure with the oil pipeline through a moving rod, and the moving rod forms an elastic sliding structure with the inside of the heat insulation box through a return spring.

[0011] Preferably, the knocking mechanism includes a spiral rod fixed to a side position of a connecting plate away from the moving rod, the outer side of the spiral rod is spirally connected to the inner side of the rotating gear, the axial end position of the rotating gear is rotatably set on a side of the fixed plate, the outer side of the upper end of the fixed plate is fixed to the inside of the heat insulation box, the outer side of the rotating gear is meshed and connected to the outer side of the mating gear, and a rotating groove is provided at one end of the mating gear, a connecting block is fitted inside the rotating groove, one end of the connecting block is fixed to one side position of the knocking block, and guide rods are also fixed at the upper and lower ends of the knocking block, and the outer side of the guide rod is slidably set inside the accommodating rod.

[0012] Preferably, the end position of the mating gear is rotatably arranged on one side of the fixing plate, and one side position of the accommodating rod is fixed on one side of the fixing plate.

[0013] Preferably, a spring is also fixed inside the containing rod, and the other end of the spring is fixed to one side of the guide rod. The outer side of the knocking block is attached to the outer wall of the reaction furnace body, and the knocking block forms a sliding structure with the inner side of the guide rod through the connecting block. The outer side of the guide rod is attached to the inner side of the containing rod, and one end of the containing rod extends out of the outside of the heat insulation box, and a one-way air outlet valve is also provided at the end of the containing rod extending out of the outside of the heat insulation box, and a one-way air inlet valve is provided at the end of the containing rod arranged inside the heat insulation box.

[0014] Preferably, the connecting block is arc-shaped, and the outer side of the connecting block is fitted to the inner side of the rotating groove. The connecting block forms a shaking structure with the outer wall of the reaction furnace body through the rotation of the rotating groove.

[0015] Preferably, the rotating mechanism includes a bevel gear assembly, one group of gears of the bevel gear assembly is fixed at the end position of the mating gear, another group of gears of the bevel gear assembly is fixed to the bottom outer side of the fan-shaped rotating rod, the upper outer end of the fan-shaped rotating rod is rotatably arranged on the top of the fixed plate, and the upper outer end of the fixed plate is meshed with two groups of connecting gears, the bottom position of the connecting gear is connected to the top outer position of the fixed plate through a torsion spring, and the top position of the connecting gear is fixed to the outside of the driving fan blade.

[0016] Preferably, the connecting gear forms a rotating structure with the inside of the fixed plate through a torsion spring, and the rotation range of the driving blades is 0 to 45 degrees, so that efficient cooling can be achieved through the multi-directional rotation of the driving blades.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the tungsten oxide reduction furnace for tungsten powder production with rapid gas replacement is provided with an extrusion mechanism, and the output end of the drive motor can drive the extrusion mechanism to operate through the eccentric wheel through the rotation of the drive motor, and the extrusion mechanism intermittently squeezes the oil pipeline, which can not only accelerate the circulation efficiency of the cold oil inside the oil pipeline, but also drive the operation of the knocking mechanism, so that one side of the knocking mechanism acts on the bottom of the reaction furnace body, and the material inside the reaction furnace body is prevented from adhering, which is convenient for the later discharge work. In the process of vibration, it will also drive the operation of the rotating mechanism, so that the driving fan blades can rotate in multiple directions, and further realize efficient cooling treatment. The specific contents are shown as follows: 1. A driving motor is provided, and the eccentric wheel can be driven to work through the output end of the driving motor, so that the connecting plate provided at the outer edge of the eccentric wheel can be moved, so as to realize the movement of the moving rod, the return spring and the extrusion block. Through the movement of the extrusion block, one side of the oil pipeline can be extruded, thereby accelerating the cooling efficiency of the reaction furnace body.

[0018] 2. A connecting plate is provided, one side of which can drive the spiral rod to move, so that the rotating gear spirally connected to the outer side of the spiral rod can rotate, and the rotatable gear can rotate at one side of the fixed plate, so that the rotating gear can drive the meshing matching gear to rotate, so that the matching gear drives the rotating groove to rotate. At this time, the connecting block fitted at one side of the rotating groove slides, so that the connecting block drives the knocking block to knock on the outer wall of the reactor body through the cooperation of the guide rod and the accommodating rod, which can prevent the material inside the reactor body from adhering to the material, and facilitate the subsequent unloading processing; in addition, through the cooperation between the knocking block and the guide rod, the one-way air inlet valve and the one-way air outlet valve can be used to realize gas replacement and achieve rapid cooling processing.

[0019] 3. A matching gear is provided, and the rotation of the matching gear can drive the fan-shaped rotating rod to rotate through the bevel gear assembly, so that the fan-shaped rotating rod can drive the connecting gears on both sides to rotate when rotating, and the connecting gear can drive the driving fan blades to rotate, so that after the connecting gear and the fan-shaped rotating rod are no longer engaged, they can be reset and rotated through the torsion spring. Through the above settings, multi-directional cooling treatment can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the heat insulation box of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the main structure of the reaction furnace body of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a schematic diagram of the fixed side structure of the present invention; Figure 8 This is a schematic diagram of the main structure of the rotating groove of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the rotating groove and the connecting plate of the present invention; Fig.10 It is a rear view structural schematic diagram of the matching gear of the present invention.

[0021] In the figure: 1. heat insulation box; 2. control panel; 3. reaction furnace body; 4. feed port; 5. discharge port; 6. exhaust pipe; 7. oil delivery parts; 8. oil delivery pipe; 9. driving motor; 10. eccentric wheel; 11. connecting plate; 12. moving rod; 13. return spring; 14. extrusion block; 15. screw rod; 16. rotating gear; 17. matching gear; 18. rotating groove; 19. connecting block; 20. knocking block; 21. guide rod; 22. accommodating rod; 23. fixing plate; 24. bevel gear assembly; 25. fan-shaped rotating rod; 26. connecting gear; 27. torsion spring; 28. driving fan blade. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1 In order to quickly replace the gas inside the reaction furnace body 3, please refer to the attached Figure 1 -Attached Figure 3 , including a heat insulation box 1, a control panel 2 is installed at the outer position of the heat insulation box 1, and a reaction furnace body 3 is also fixedly installed inside the heat insulation box 1, a feed port 4 is opened at the top position of the reaction furnace body 3, and a discharge port 5 is opened at the bottom position of the reaction furnace body 3 extending out of the bottom outer side of the heat insulation box 1; an oil conveying part 7 is fixed on the outer surface of the heat insulation box 1, and the output end and the recovery end of the oil conveying part 7 are connected with the two end positions of the oil pipe 8, and the outer middle part of the oil pipe 8 is wound around the outer surface of the reaction furnace body 3; a group of exhaust pipes 6 are connected at the top position of the reaction furnace body 3, and the gas inside the reaction furnace body 3 can be quickly replaced by connecting the exhaust pipes 6 with the pump body, and a hydrogen input pipeline is connected to the side position of the top position of the reaction furnace body 3 close to the exhaust pipe 6, a heating wire is also arranged inside the reaction furnace body 3, and a drain pipe is also arranged at the bottom position of the discharge port 5.

[0023] First, when reduction treatment is required, the feed port 4 on the top of the reactor body 3 is opened and the discharge port 5 is closed through the setting of the control panel 2, and then tungsten oxide can be added to the interior of the reactor body 3. When it is filled to a certain amount, the gas inside the reactor body 3 is discharged through the exhaust pipe 6 and the pump body. After the discharge, hydrogen is injected into the interior of the reactor body 3 through the pipeline to achieve the purpose of rapid replacement. In addition, when the heating wire inside the reactor body 3 is started, the tungsten oxide inside the reactor body 3 can be reduced, and metallic tungsten and water are produced under high temperature, and the water can be discharged through the drainage pipe set at the discharge port 5 at the bottom of the reactor body 3.

[0024] Embodiment 2 In order to quickly cool the reaction furnace body 3, please refer to the attached Figure 1 -Attached Figure 7 and attached Fig.10 A driving motor 9 is fixedly installed on the outer side of the bottom of the heat insulation box 1, and the output end of the driving motor 9 extends into the interior of the heat insulation box 1 and is fixed to the center position of the eccentric wheel 10. The outer side of the eccentric wheel 10 is attached to the outer side of the extrusion mechanism. The drive of the extrusion mechanism can realize the narrowing of the channel of the oil pipeline 8. The setting of the extrusion mechanism also realizes the operation of the knocking mechanism, and one side of the knocking mechanism acts on the outer side of the bottom of the reaction furnace body 3; the extrusion mechanism includes a connecting plate 11 attached to one side of the eccentric wheel 10, and a moving rod 12 is fixed at the corner position of one side of the connecting plate 11. The outer side of the moving rod 12 is slidably arranged in the interior of the heat insulation box 1, and an extrusion block 14 is also fixed at one end of the moving rod 12 that slides out of the outer side of the heat insulation box 1. A return spring 13 is fixed on the outer side of one end of the moving rod 12 near the connecting plate 11, and the other end of the return spring 13 is fixed on the inner side of the heat insulation box 1; the inner side of the extrusion block 14 is attached to the outer side of the oil pipeline 8, and the extrusion block 14 passes between the moving rod 12 and the oil pipeline 8 It constitutes an extrusion structure, and the moving rod 12 forms an elastic sliding structure with the inside of the heat insulation box 1 through the return spring 13; one side of the knocking mechanism can also drive the rotating mechanism to operate, and the driving fan blade 28 fixed at the top of the rotating mechanism rotates inside the heat insulation box 1 to achieve rapid multi-directional cooling treatment; the rotating mechanism includes a bevel gear assembly 24, a group of gears of the bevel gear assembly 24 is fixed at the end position of the matching gear 17, and another group of gears of the bevel gear assembly 24 is fixed to the bottom outside of the fan-shaped rotating rod 25, and the upper outer side of the fan-shaped rotating rod 25 is rotatably arranged on the top of the fixed plate 23, and two groups of connecting gears 26 are meshed and connected at the upper outer position of the fixed plate 23, and the bottom position of the connecting gear 26 is connected to the top outer position of the fixed plate 23 through a torsion spring 27, and the top position of the connecting gear 26 is fixed to the outside of the driving fan blade 28; the connecting gear 26 forms a rotating structure with the inside of the fixed plate 23 through the torsion spring 27, and the rotation range of the driving fan blade 28 is 0 to 45 degrees.

[0025] When it is necessary to quickly cool down the reactor body 3 and the metal tungsten inside, the oil conveying member 7 is started so that the output end of the oil conveying member 7 injects cold oil into the oil pipe 8, which can absorb the temperature of the reactor body 3, and the driving blades 28 arranged inside the heat insulation box 1 can be started to quickly transfer the oil to the outside of the internal reactor body 3. In addition, in order to accelerate the transportation efficiency of the oil pipe 8, the cold oil inside the oil pipe 8 can be quickly transported by setting an extrusion mechanism. By starting the driving motor 9 installed on the outside of the bottom of the heat insulation box 1, the output end of the driving motor 9 can drive the eccentric wheel 10 to rotate in the internal position of the heat insulation box 1, so that the connecting plate 11 attached to the outside of the eccentric wheel 10 can drive the moving rod 12 and the extrusion block 14 to move. At this time, the limit on the bottom position of the oil pipe 8 can be relaxed, and when the eccentric wheel 10 no longer presses one side of the connecting plate 11 When extrusion is performed, the connecting plate 11 will be reset by the reset spring 13, and the extrusion block 14 will be reset by the elastic force of the reset spring 13, so as to achieve the extrusion of the oil pipe 8. When the oil delivery member 7 is transported at the same power, the flow rate will be accelerated, thereby improving the cooling efficiency; when the matching gear 17 is rotating, the end of the matching gear 17 rotates and extends into the interior of the fixed plate 23. At this time, during the rotation of the matching gear 17, the matching gear 17 will drive the fan-shaped rotating rod 25 to rotate inside the fixed plate 23 through the bevel gear assembly 24, so that the fan-shaped rotating rod 25 can drive the meshing connecting gear 26 to rotate, so that the connecting gear 26 drives the driving blades 28 to rotate in multiple directions, and when the fan-shaped rotating rod 25 and the connecting gear 26 are no longer meshed, the driving blades 28 can be reset and rotated, which can further cool the interior of the heat insulation box 1.

[0026] Embodiment 3 In order to solve the problem that the tungsten powder on the market will produce metal tungsten and water after the reduction reaction of hydrogen at high temperature, some of the metal tungsten may adhere to the inner wall of the furnace body. When the material is unloaded later, the metal tungsten cannot be unloaded well and is prone to residue. Please refer to the attached Figure 1 -Attached Figure 6 , Attachment Figure 8 and attached Fig. 9The knocking mechanism includes a spiral rod 15 fixed at a side position of the connecting plate 11 away from the moving rod 12, the outer side of the spiral rod 15 is spirally connected to the inner side of the rotating gear 16, the axial end position of the rotating gear 16 is rotatably set on one side of the fixed plate 23, the upper end outer side of the fixed plate 23 is fixed to the inside of the heat insulation box 1, the outer side position of the rotating gear 16 is meshed and connected to the outer side of the matching gear 17, and a rotating groove 18 is provided at one end of the matching gear 17, a connecting block 19 is fitted inside the rotating groove 18, one end of the connecting block 19 is fixed to one side position of the knocking block 20, and a guide rod 21 is also fixed at the upper and lower ends of the knocking block 20, and the outer side of the guide rod 21 is slidably set inside the accommodating rod 22; the end position of the matching gear 17 is rotatably set on one side of the fixed plate 23, and the accommodating rod One side of 22 is fixed on one side of the fixed plate 23; a spring is also fixed inside the accommodating rod 22, and the other end of the spring is fixed on one side of the guide rod 21. The outer side of the knocking block 20 is attached to the outer wall of the reaction furnace body 3, and the knocking block 20 forms a sliding structure with the inner part of the guide rod 21 through the connecting block 19. The outer side of the guide rod 21 is attached to the inner side of the accommodating rod 22. One end of the accommodating rod 22 extends out of the outside of the insulation box 1, and the end of the accommodating rod 22 extending out of the outside of the insulation box 1 is also provided with a one-way air outlet valve, and the end of the accommodating rod 22 set inside the insulation box 1 is provided with a one-way air inlet valve; the shape of the connecting block 19 is arc-shaped, and the outer side of the connecting block 19 is attached to the inner side of the rotating groove 18. The connecting block 19 forms a shaking structure with the outer wall of the reaction furnace body 3 through the rotation of the rotating groove 18.

[0027] In order to process the metal tungsten remaining inside the reaction furnace body 3, when the connecting plate 11 moves, the spiral rod 15 fixed on one side of the connecting plate 11 will also move. At this time, the rotating gear 16 spirally connected to the outer side of the spiral rod 15 rotates at the outer side of the fixed plate 23, so that the matching gear 17 meshingly connected to the outer side of the rotating gear 16 will also rotate on the outer side of the fixed plate 23. At this time, the rotating groove 18 opened at one end of the matching gear 17 moves, so that during the rotation of the rotating groove 18, the connecting block 19 fitted with the rotating groove 18 will move with the rotating groove 18, so that the connecting block 19 drives the knocking block 20 to the outer side of the reaction furnace body 3. The knocking block 20 is used to facilitate the subsequent unloading of the materials. At this time, the knocking block 20 is moving, and the knocking block 20 slides stably through the matching setting of the guide rod 21 and the containing rod 22. Since the ends of the guide rod 21 and the containing rod 22 that are close to each other are connected by a spring, it is convenient for the connecting block 19 to be reset. In addition, the outer side of the guide rod 21 and the inner side of the containing rod 22 are fitted together. When the guide rod 21 moves, the guide rod 21 will transport the gas inside the containing rod 22 to the outside of the heat insulation box 1. In addition, through the setting of the one-way air inlet valve, the gas can be transported to the inside of the guide rod 21. Through the above settings, heat dissipation treatment can be carried out continuously.

Claims

1. A tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement, comprising a heat insulation box (1), a control panel (2) being installed at an outer position of the heat insulation box (1), and a reaction furnace body (3) being fixedly installed inside the heat insulation box (1), a feed inlet (4) being provided at the top position of the reaction furnace body (3), and a discharge outlet (5) being provided at the bottom position of the reaction furnace body (3) extending out of the bottom outer side of the heat insulation box (1); Features: An oil delivery component (7) is fixed on the outer surface of the heat insulation box (1), the output end and the recovery end of the oil delivery component (7) are connected to the two ends of the oil delivery pipe (8), and the outer middle part of the oil delivery pipe (8) is wound around the outer surface of the reaction furnace body (3); A driving motor (9) is fixedly mounted on the outer side of the bottom of the heat insulation box (1), the output end of the driving motor (9) extends into the interior of the heat insulation box (1) and is fixed to the center position of the eccentric wheel (10), the outer side of the eccentric wheel (10) is attached to the outer side of the extrusion mechanism, the extrusion mechanism is driven to narrow the channel of the oil pipeline (8), the setting of the extrusion mechanism also realizes the operation of the knocking mechanism, and one side of the knocking mechanism acts on the outer side of the bottom of the reaction furnace body (3); One side of the knocking mechanism can also drive the rotating mechanism to operate, and the driving blades (28) fixed on the top of the rotating mechanism rotate inside the heat insulation box (1), thereby achieving rapid multi-directional cooling processing.

2. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 1, characterized in that: The top of the reaction furnace body (3) is connected to a group of exhaust pipes (6), and the gas inside the reaction furnace body (3) can be quickly replaced by connecting the exhaust pipes (6) to the pump body. A hydrogen input pipeline is connected to a side of the top of the reaction furnace body (3) close to the exhaust pipes (6). A heating wire is also provided inside the reaction furnace body (3), and a drainage pipe is also provided at the bottom of the discharge port (5).

3. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 1, characterized in that: The extrusion mechanism comprises a connecting plate (11) which is fitted on one side of the eccentric wheel (10), and a moving rod (12) is fixed at a corner position on one side of the connecting plate (11), the outer side of the moving rod (12) is slidably arranged inside the heat insulation box (1), and an extrusion block (14) is fixed at one end of the moving rod (12) that slides out of the outside of the heat insulation box (1), and a return spring (13) is fixed on the outer side of one end of the moving rod (12) close to the connecting plate (11), and the other end of the return spring (13) is fixed on the inner side of the heat insulation box (1).

4. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 3, characterized in that: The inner side of the extrusion block (14) is fitted to the outer side of the oil pipeline (8), the extrusion block (14) forms an extrusion structure with the oil pipeline (8) through the moving rod (12), and the moving rod (12) forms an elastic sliding structure with the inside of the heat insulation box (1) through the return spring (13).

5. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 1, characterized in that: The knocking mechanism comprises a spiral rod (15) fixed at a side position of a connecting plate (11) away from the moving rod (12), the outer side of the spiral rod (15) is spirally connected to the inner side of a rotating gear (16), the axial end position of the rotating gear (16) is rotatably arranged on a side surface of a fixed plate (23), the outer side of the upper end of the fixed plate (23) is fixed inside the heat insulation box (1), the outer side of the rotating gear (16) is meshedly connected to the outer side of a matching gear (17), and a rotating groove (18) is provided at one end of the matching gear (17), a connecting block (19) is fitted inside the rotating groove (18), one end of the connecting block (19) is fixed to a side position of a knocking block (20), and guide rods (21) are also fixed at the upper and lower ends of the knocking block (20), and the outer side of the guide rod (21) is slidably arranged inside the accommodating rod (22).

6. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 5, characterized in that: The end position of the matching gear (17) is rotatably arranged on one side of the fixing plate (23), and the position of one side of the accommodating rod (22) is fixed on one side of the fixing plate (23).

7. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 5, characterized in that: A spring is also fixed inside the accommodating rod (22), and the other end of the spring is fixed to one side of the guide rod (21). The outer side of the knocking block (20) is in contact with the outer wall of the reaction furnace body (3). The knocking block (20) forms a sliding structure with the inner side of the guide rod (21) through the connecting block (19). The outer side of the guide rod (21) is in contact with the inner side of the accommodating rod (22). One end of the accommodating rod (22) extends outside the heat insulation box (1), and a one-way air outlet valve is also provided at the end of the accommodating rod (22) extending outside the heat insulation box (1). A one-way air inlet valve is provided at the end of the accommodating rod (22) arranged inside the heat insulation box (1).

8. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 5, characterized in that: The connecting block (19) is arc-shaped, and the outer side of the connecting block (19) fits in the inner side of the rotating groove (18). The connecting block (19) forms a shaking structure with the outer wall of the reaction furnace body (3) through the rotation of the rotating groove (18).

9. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 1, characterized in that: The rotating mechanism comprises a bevel gear assembly (24), a group of gears of the bevel gear assembly (24) being fixed at an end position of a mating gear (17), another group of gears of the bevel gear assembly (24) being fixed at the bottom outer side of a fan-shaped rotating rod (25), the upper outer side of the fan-shaped rotating rod (25) being rotatably arranged at the top of a fixed plate (23), two groups of connecting gears (26) being meshedly connected at the upper outer side of the fixed plate (23), the bottom position of the connecting gear (26) being connected to the top outer side of the fixed plate (23) via a torsion spring (27), and the top position of the connecting gear (26) being fixed at the outer side of a driving fan blade (28).

10. The tungsten oxide reduction furnace for producing tungsten powder with rapid gas replacement according to claim 9, characterized in that: The connecting gear (26) forms a rotating structure with the interior of the fixing plate (23) via a torsion spring (27), and the driving blade (28) has a rotation range of 0 to 45 degrees.

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