A drying treatment device for producing tungsten-based composite powder

Abstract

The present invention belongs to the technical field of powder drying, and relates to a drying treatment device for producing tungsten-based composite powder, comprising a frame, an outer cylinder, an inner cylinder, a discharge hopper, a cover, a heating wire, a toggle mechanism and an exhaust mechanism, wherein the top of the frame is connected to an outer cylinder, the inner cylinder is rotatably connected to the outer cylinder, the middle of the bottom of the inner cylinder is connected to the discharge hopper, the bottom of the inner cylinder is provided with two discharge ports, a detachable cover is provided on the inner cylinder, a heating wire is installed between the outer cylinder and the inner cylinder, a toggle mechanism for toggling the powder is rotatably connected to the inner cylinder, and an exhaust mechanism for extracting the air inside the inner cylinder is provided on the outer cylinder. When the present invention is drying, the powder can be toggled by rotating the toggle plate while heating and drying, so that the powder can be scattered to avoid the powder from agglomerating, thereby ensuring the quality and efficiency of the powder processing.

Description

Technical Field

[0001] The invention belongs to the technical field of powder drying and relates to a drying treatment device for producing tungsten-based composite powder. Background Art

[0002] Tungsten-based composite powder is a high-performance powder material composed of tungsten and its alloys or other additives. It is widely used in aerospace, automobile manufacturing, electronics industry and high-temperature structural materials. It combines the high melting point, high strength, high density and good electrical and thermal conductivity of tungsten, as well as the special functions given by additives, such as enhanced toughness, improved processing performance or improved wear resistance. When producing tungsten-based composite powder, alcohol is added during the mixing process of tungsten powder and other powders, and after the mixing is completed, the mixed powder needs to be dried.

[0003] At present, when drying the mixed powder, the heating drying method is usually adopted. The powder is added into the drying cylinder and the inside of the drying cylinder is vacuumed to avoid oxidation of the heated tungsten powder by reaction with oxygen in the air. However, this drying method has some problems. For example, the powder may clump together during the drying process, affecting the quality and efficiency of subsequent processing. At the same time, the dusty powder particles are easily extracted together during the vacuuming process, which not only causes material waste and increases production costs, but also the extracted powder particles are directly discharged into the external environment. Operators are prone to inhale these fine particles, which poses a potential hazard to human health. Summary of the invention

[0004] In view of this, the present invention provides a drying treatment device for producing tungsten-based composite powder.

[0005] Technical solution: A drying treatment device for the production of tungsten-based composite powder, comprising a frame, an outer cylinder, an inner cylinder, a discharge hopper, a cover, a heating wire, a toggle mechanism and an exhaust mechanism, wherein the top of the frame is connected to the outer cylinder, the inner cylinder is rotatably connected to the outer cylinder, the middle of the bottom of the inner cylinder is connected to the discharge hopper, the bottom of the inner cylinder is provided with two discharge ports, the inner cylinder is provided with a detachable cover, a heating wire is installed between the outer cylinder and the inner cylinder, a toggle mechanism for toggling the powder is rotatably connected to the inner cylinder, the outer cylinder is provided with an exhaust mechanism for extracting the air inside the inner cylinder, the toggle mechanism comprises a rotating frame, a driving assembly and a toggle plate, the inner cylinder is rotatably connected to the rotating frame, a plurality of toggle plates are evenly spaced and connected to the rotating frame, the toggle plates are arranged in a V-shape, and the outer cylinder is provided with a driving assembly for driving the rotating frame and the toggle plate to rotate.

[0006] In addition, it is particularly preferred that the drive assembly includes a drive motor, a drive gear, and a toothed ring. The drive motor is installed at the top of the outer cylinder. A drive gear is connected to the output shaft of the drive motor. A toothed ring is connected to the rotary frame, and the toothed ring meshes with the drive gear.

[0007] In addition, it is particularly preferred that the air extraction mechanism includes an air pump, an air extraction pipe, a gas guide housing, an air suction pipe, a breathable film, and a connecting plate. The air pump is installed at the bottom of the outer cylinder. The suction end of the air pump is communicated with the air extraction pipe. A connecting plate is connected to the outer cylinder. Guide gas housings are connected to both sides of the connecting plate, and the two guide gas housings are connected to each other. Air suction pipes are connected to both sides of the connecting plate. The air suction pipes are located inside the guide gas housings. The air suction pipes are communicated with the air extraction pipe. A breathable film is sleeved outside the air suction pipes.

[0008] In addition, it is particularly preferred that a plugging mechanism is further included. The plugging mechanism includes a cylinder, a first connecting rod, and a plug block. The cylinder is connected to the bottom of the inner cylinder. A first connecting rod is connected to the telescopic rod of the cylinder. Plug blocks for plugging the discharge port are connected to both sides of the first connecting rod.

[0009] In addition, it is particularly preferred that a crushing mechanism is further included. The crushing mechanism includes a crushing frame, crushing blocks, crushing rollers, elastic members, and an extrusion assembly. The crushing frame is connected to the inner top of the inner cylinder. Crushing blocks are slidably connected to both sides of the crushing frame. A plurality of crushing rollers are rotatably connected to the bottom of the crushing blocks at equal intervals in the circumferential direction. Elastic members are connected between the crushing blocks and the crushing frame. A discharge groove is formed in the middle of the bottom of the crushing frame.

[0010] In addition, it is particularly preferred that the extrusion assembly includes a rotating ring, a pushing block, a sliding rod, a wedge-shaped extrusion block, and a wedge-shaped pressure-receiving block. A rotating ring is connected inside the toothed ring. A plurality of pushing blocks are connected to the inner ring of the rotating ring at equal intervals in the circumferential direction. A sliding rod is slidably connected to the middle of the crushing frame. A wedge-shaped pressure-receiving block is connected to the top of the sliding rod. The wedge-shaped pressure-receiving block is located at the moving track of the pushing block. A wedge-shaped extrusion block is connected to the bottom of the sliding rod. When the wedge-shaped extrusion block moves, it can push the two crushing blocks away from each other.

[0011] In addition, it is particularly preferred that a connecting sleeve and a knocking rod are further included. Knocking rods are connected to the tops of the two crushing blocks. Connecting sleeves are connected to the joints on both sides of the two guide gas housings.

[0012] In addition, it is particularly preferred that a second connecting rod, a sleeve ring, and fixing thorns are further included. The sleeve ring can be sleeved outside the air suction pipe and move along the air suction pipe. A plurality of fixing thorns are evenly spaced and connected inside the sleeve ring. The fixing thorns can puncture the breathable film. A second connecting rod is connected to the sleeve ring. Beneficial effects

[0013] 1. When the present invention performs a drying treatment, while heating and drying, it can stir the powder through the rotation of the stirring plate, so as to disperse the powder, avoid the powder from agglomerating into a mass, and ensure the quality and efficiency of processing the powder.

[0014] 2. When the present invention performs a vacuum pumping treatment on the inside of the inner cylinder, it can block the powder through the breathable film, avoid the powder from being pumped out together, avoid waste of the powder, save production costs, and at the same time can also prevent the powder from spreading into the air and ensure the processing environment.

[0015] 3. The powder in the present invention can be put into the crushing frame, and then controlling the movement of the crushing block can drive the crushing roller to roll and press the powder. If there is powder agglomeration, it can also be crushed by the crushing roller, further avoiding the occurrence of powder agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is a cross-sectional view of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the air extraction mechanism of the present invention.

[0019] Figure 4 It is a structural schematic diagram of the air guide housing, the air suction pipe and the breathable film of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the plugging mechanism of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the crushing mechanism of the present invention.

[0022] Figure 7 It is a cross-sectional view of the crushing mechanism of the present invention.

[0023] Figure 8 It is a structural schematic diagram of the crushing block and the crushing roller of the present invention.

[0024] Figure 9 It is a structural schematic diagram of the connecting sleeve and the knocking rod of the present invention.

[0025] Figure 10 It is a structural schematic diagram of the second connecting rod, the collar and the air suction pipe of the present invention.

[0026] Figure 11 It is a structural schematic diagram of the second connecting rod, the collar and the fixing thorn of the present invention.

[0027] In the figure: 1, frame; 2, outer cylinder; 3, inner cylinder; 4, discharge hopper; 5, cover; 6, heating wire; 71, drive motor; 72, drive gear; 73, rotating frame; 74, stirring plate; 75, gear ring; 81, air pump; 82, suction pipe; 83, air guide housing; 84, suction tube; 85, breathable film; 86, connecting plate; 91, swivel ring; 92, crushing frame; 93, crushing block; 931, crushing roller; 94, elastic member; 95, sliding rod; 96, wedge-shaped extrusion block; 97, wedge-shaped pressure-receiving block; 98, pushing block; 101, connecting sleeve; 102, knocking rod; 111, cylinder; 112, connecting rod one; 113, blocking block; 121, connecting rod two; 122, collar; 123, fixing thorn. Specific implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] A drying treatment device for producing tungsten-based composite powder, as Figures 1-4 shown, includes a frame 1, an outer cylinder 2, an inner cylinder 3, a discharge hopper 4, a cover 5, a heating wire 6, a stirring mechanism and an air extraction mechanism. The top of the frame 1 is connected to the outer cylinder 2. The inner cylinder 3 is rotatably connected inside the outer cylinder 2. The middle of the bottom of the inner cylinder 3 is connected to the discharge hopper 4. Two discharge ports are opened at the bottom of the inner cylinder 3, and the discharge ports communicate the inside of the inner cylinder 3 with the discharge hopper 4. A detachable cover 5 is arranged on the left side of the inner cylinder 3. A heating wire 6 is installed between the outer cylinder 2 and the inner cylinder 3 for heating the inside of the inner cylinder 3 to assist in drying the powder inside the inner cylinder 3. A stirring mechanism for stirring the powder is rotatably connected inside the inner cylinder 3. An air extraction mechanism for extracting the air inside the inner cylinder 3 is arranged on the outer cylinder 2.

[0030] As Figure 2 shown, the stirring mechanism includes a rotating frame 73, a driving assembly and a stirring plate 74. The rotating frame 73 is rotatably connected inside the inner cylinder 3. A plurality of stirring plates 74 are evenly spaced and connected to the rotating frame 73. The stirring plate 74 is arranged in a V shape, and when the stirring plate 74 rotates, the powder at both ends of the inner cylinder 3 can be transmitted towards the middle. A driving assembly for driving the rotating frame 73 and the stirring plate 74 to rotate is arranged on the outer cylinder 2.

[0031] As Figure 2As shown, the driving assembly includes a driving motor 71, a driving gear 72 and a gear ring 75. The driving motor 71 is installed at the top of the outer cylinder 2. A driving gear 72 is connected to the output shaft of the driving motor 71. A gear ring 75 is connected to the rotating frame 73. The gear ring 75 meshes with the driving gear 72, so that when the driving motor 71 operates, the rotating frame 73 can be driven to rotate through the driving gear 72 and the gear ring 75.

[0032] As Figure 3 and Figure 4 As shown, the air extraction mechanism includes an air pump 81, an air extraction pipe 82, a gas guide housing 83, an air suction pipe 84, a breathable film 85 and a connecting plate 86. The air pump 81 is installed on the right side of the bottom of the outer cylinder 2. The suction end of the air pump 81 is communicated with the air extraction pipe 82. The connecting plate 86 is connected to the right side of the outer cylinder 2. The connecting plate 86 is connected with gas guide housings 83 on both the front and rear sides. The two gas guide housings 83 are connected to each other. The connecting plate 86 is connected with air suction pipes 84 on both the front and rear sides. The air suction pipes 84 are located inside the gas guide housings 83. The air suction pipes 84 are communicated with the air extraction pipe 82, so that when the air pump 81 operates, the air inside the inner cylinder 3 can be sucked through the air suction pipes 84. A breathable film 85 is sleeved outside the air suction pipes 84. The breathable film 85 is used to block the powder to prevent the powder from being sucked away by the air suction pipes 84.

[0033] As Figure 5 As shown, it further includes a blocking mechanism. The blocking mechanism includes a cylinder 111, a first connecting rod 112 and a blocking block 113. The cylinder 111 is connected to the bottom of the inner cylinder 3. A first connecting rod 112 is connected to the telescopic rod of the cylinder 111. Blocking blocks 113 are connected to both sides of the first connecting rod 112. The blocking blocks 113 can block the discharge port.

[0034] When the tungsten-based composite powder needs to be dried, this device can be used to dry the tungsten-based composite powder. During operation, first open the cover 5, then the powder can be added into the inner cylinder 3. Next, control the heating wire 6 to heat the inside of the inner cylinder 3. While heating, control the air pump 81 to operate, so that the suction pipe 82 makes the suction pipe 84 suck air, and evacuate the inside of the inner cylinder 3 to a vacuum. And when evacuating, the powder can be blocked by the breathable film 85 to prevent the powder from being drawn out together. At this time, control the driving motor 71 to operate, which drives the rotating frame 73 to rotate through the driving gear 72 and the toothed ring 75. When the rotating frame 73 rotates, it can drive the stirring plate 74 to rotate. When the stirring plate 74 rotates, it can disturb the powder inside the inner cylinder 3, making the powder more loose and assisting in drying the powder. While disturbing, it can also transport the powder to the middle of the inner cylinder 3. Repeating this way can dry the powder. After drying, control the telescopic rod of the cylinder 111 to extend, driving the connecting rod 112 and the blocking block 113 to move downward, so that the blocking block 113 is separated from the discharge port. At this time, the dried powder can be discharged through the discharge port. In this way, the drying of the powder can be realized. And during drying, the powder can be repeatedly stirred by the stirring plate 74 to prevent the powder from agglomerating. At the same time, when evacuating, there is also a breathable film 85 to block the powder to prevent the powder from being drawn out together.

[0035] As Figures 6-8 shown, it further includes a crushing mechanism. The crushing mechanism includes a crushing frame 92, crushing blocks 93, crushing rollers 931, elastic members 94 and an extrusion assembly. The inner top of the inner cylinder 3 is connected with a crushing frame 92. Both the left and right sides inside the crushing frame 92 are slidably connected with crushing blocks 93. The crushing blocks 93 can slide left and right along the inside of the crushing frame 92. The bottom of the crushing blocks 93 is evenly and spacedly rotatably connected with a plurality of crushing rollers 931. An elastic member 94 is connected between the crushing blocks 93 and the crushing frame 92. The elastic member 94 is a connecting spring. A discharge groove is opened in the middle of the bottom of the crushing frame 92.

[0036] As Figures 6-8As shown in the figure, the extrusion assembly includes a swivel ring 91, a pushing block 98, a sliding rod 95, a wedge-shaped extrusion block 96, and a wedge-shaped pressure-receiving block 97. A swivel ring 91 is connected inside the gear ring 75. A plurality of pushing blocks 98 are evenly spaced along the circumferential direction of the inner ring of the swivel ring 91. A sliding rod 95 is slidably connected in the middle of the crushing frame 92. The sliding rod 95 can slide up and down along the crushing frame 92. A wedge-shaped pressure-receiving block 97 is connected to the top of the sliding rod 95. The wedge-shaped pressure-receiving block 97 is located at the moving track of the pushing block 98, so that the pushing block 98 can contact and squeeze the wedge-shaped pressure-receiving block 97 to move when moving. A wedge-shaped extrusion block 96 is connected to the bottom of the sliding rod 95. The left and right sides of the lower part of the wedge-shaped extrusion block 96 are both inclined surfaces, and the inclined surfaces are respectively in contact with the two crushing blocks 93, so that the wedge-shaped extrusion block 96 can push the two crushing blocks 93 away from each other through its upper inclined surface when moving.

[0037] When the dialing plate 74 dials the powder material, the powder material will be dialed upward and then allowed to fall. At this time, the falling powder material will fall into the crushing frame 92. When the gear ring 75 rotates, it can drive the swivel ring 91 and the pushing block 98 to rotate. When the pushing block 98 rotates, it will contact and squeeze the wedge-shaped pressure-receiving block 97 to move downward. When the wedge-shaped pressure-receiving block 97 moves downward, it will drive the sliding rod 95 to move downward. When the sliding rod 95 moves downward, it can drive the wedge-shaped extrusion block 96 to move downward. When the wedge-shaped extrusion block 96 moves downward, it will squeeze the two crushing blocks 93 on both sides away from each other, and the elastic member 94 is compressed. When the crushing block 93 moves, it can drive the crushing roller 931 to move together. When the pushing block 98 rotates to disengage from the wedge-shaped pressure-receiving block 97, under the action of the elastic member 94, the two crushing blocks 93 reset. The reset crushing block 93 squeezes the lower inclined surface of the wedge-shaped extrusion block 96, so that the sliding rod 95 moves upward to the moving track of the pushing block 98. Repeating this way, the crushing block 93 can drive the crushing roller 931 to reciprocate to roll and process the powder material. If there is caked powder material, it can be crushed by the crushing roller 931. The crushed powder material will be discharged from the crushing frame 92 through the discharge chute, thus playing a role in crushing the caked powder material.

[0038] As Figure 9 As shown in the figure, it further includes a connecting sleeve 101 and a knocking rod 102. Knocking rods 102 are connected to the tops of the two crushing blocks 93. Connecting sleeves 101 are connected to the connection parts on both sides of the two air guide housings 83. The moving knocking rod 102 can contact the connecting sleeve 101.

[0039] When the broken block 93 moves, it can drive the knocking rod 102 to move. When the knocking rod 102 moves, it can contact the connecting sleeve 101, thereby knocking the connecting sleeve 101, causing the connecting sleeve 101 to vibrate. When the connecting sleeve 101 vibrates, it can drive the air guide housing 83 and the air suction pipe 84 to vibrate, thereby shaking off the powder attached to the outer layer of the breathable film 85 and preventing powder from adhering to the outer layer of the breathable film 85.

[0040] As Figure 10 and Figure 11 shown, it further includes a second connecting rod 121, a collar 122 and fixing spines 123. The collar 122 can be sleeved outside the air suction pipe 84 and move along the air suction pipe 84. A plurality of fixing spines 123 are evenly spaced and connected inside the collar 122. The fixing spines 123 can puncture the breathable film 85, thereby fixing the breathable film 85 on the fixing spines 123. The second connecting rod 121 is connected to the collar 122.

[0041] When installing the breathable film 85, the end of the breathable film 85 can be inserted on the fixing spines 123, and then the collar 122 is sleeved outside the air suction pipe 84. At this time, by pushing the second connecting rod 121 to drive the collar 122 to move along the air suction pipe 84, the installation of the breathable film 85 can be completed. When it is necessary to remove the breathable film 85, the first connecting rod 112 and the collar 122 can be directly pulled out, thereby completing the work of removing the breathable film 85. In this way, the installation and removal of the breathable film 85 can be carried out more conveniently, and the operation is more convenient.

[0042] It should be understood that this embodiment is only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A drying treatment device for producing tungsten-based composite powder, characterized in that The invention comprises a frame (1), an outer cylinder (2), an inner cylinder (3), a discharge hopper (4), a sealing cover (5), a heating wire (6), a toggling mechanism and an exhaust mechanism, wherein the top of the frame (1) is connected to the outer cylinder (2), the inner cylinder (3) is rotatably connected inside the outer cylinder (2), the middle of the bottom of the inner cylinder (3) is connected to the discharge hopper (4), the bottom of the inner cylinder (3) is provided with two discharge ports, a detachable sealing cover (5) is provided on the inner cylinder (3), a heating wire (6) is installed between the outer cylinder (2) and the inner cylinder (3), a toggling mechanism for toggling powder is rotatably connected inside the inner cylinder (3), the outer cylinder (2) is provided with an exhaust mechanism for extracting air from the inner cylinder (3), the toggling mechanism comprises a rotating frame (73), a driving mechanism (74), a heating wire (6) and a heating wire (6) for heating powder. The inner cylinder (3) is rotatably connected to a rotating frame (73), and a plurality of toggle plates (74) are evenly spaced and connected to the rotating frame (73). The toggle plates (74) are arranged in a V shape. The outer cylinder (2) is provided with a driving assembly for driving the rotating frame (73) and the toggle plates (74) to rotate. The driving assembly comprises a driving motor (71), a driving gear (72) and a gear ring (75). The driving motor (71) is mounted on the top of the outer cylinder (2). The output shaft of the driving motor (71) is connected to the driving gear (72). The rotating frame (73) is connected to a gear ring (75), and the gear ring (75) meshes with the driving gear (72). The air extraction mechanism comprises an air pump (81). ), an air extraction pipe (82), an air guide shell (83), an air intake pipe (84), a breathable film (85) and a connecting plate (86), an air pump (81) is installed at the bottom of the outer tube (2), an air intake end of the air pump (81) is connected to the air extraction pipe (82), a connecting plate (86) is connected to the outer tube (2), both sides of the connecting plate (86) are connected to the air guide shell (83), the two air guide shells (83) are connected to each other, both sides of the connecting plate (86) are connected to the air intake pipe (84), the air intake pipe (84) is located in the air guide shell (83), the air intake pipe (84) is connected to the air extraction pipe (82), the outer side of the air intake pipe (84) is provided with a breathable film (85), and also includes a crushing mechanism, the crushing mechanism The crushing mechanism comprises a crushing frame (92), a crushing block (93), a crushing roller (931), an elastic member (94) and an extrusion assembly. The top of the inner cylinder (3) is connected to the crushing frame (92). Crushing blocks (93) are slidably connected to both sides of the crushing frame (92). The bottom of the crushing block (93) is evenly and rotatably connected to a plurality of crushing rollers (931). An elastic member (94) is connected between the crushing block (93) and the crushing frame (92). A discharge trough is provided in the middle of the bottom of the crushing frame (92). The extrusion assembly comprises a swivel (91), a push block (98), a sliding rod (95), a wedge-shaped extrusion block (96) and a wedge-shaped pressure block (97). The swivel (91) is connected to the inside of the gear ring (75).A plurality of pushing blocks (98) are circumferentially and evenly spaced and connected to the inner ring of the swivel ring (91). A sliding rod (95) is slidably connected to the middle of the crushing frame (92). The top of the sliding rod (95) is connected to a wedge-shaped compression block (97). The wedge-shaped compression block (97) is located at the moving track of the pushing block (98). The bottom of the sliding rod (95) is connected to a wedge-shaped extrusion block (96). When the wedge-shaped extrusion block (96) moves, it can push two crushing blocks (93) away from each other., 2. The drying treatment device for producing tungsten-based composite powder according to claim 1, characterized in that, It further includes a plugging mechanism, and the plugging mechanism includes a cylinder (111), a first connecting rod (112) and a plug block (113). The bottom of the inner cylinder (3) is connected with the cylinder (111), the telescopic rod of the cylinder (111) is connected with the first connecting rod (112), and plug blocks (113) for plugging the discharge port are connected to both sides of the first connecting rod (112).

3. The drying treatment device for producing tungsten-based composite powder according to claim 1, characterized in that, It further includes a connecting sleeve (101) and a knocking rod (102). Knocking rods (102) are connected to the tops of the two crushing blocks (93), and connecting sleeves (101) are connected to the joints on both sides of the two air guide shells (83).

4. The drying and processing device for producing tungsten-based composite powder according to claim 1, characterized in that, It further includes a second connecting rod (121), a collar (122) and fixing thorns (123). The collar (122) can be sleeved on the outside of the suction pipe (84) and move along the suction pipe (84). A plurality of fixing thorns (123) are evenly spaced and connected inside the collar (122), and the fixing thorns (123) can puncture the breathable film (85). The collar (122) is connected with the second connecting rod (121).

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