Drying treatment device for tungsten-based composite powder production

Abstract

The invention belongs to the technical field of powder drying, and relates to a drying treatment device for tungsten-based composite powder production, which comprises a rack, an outer cylinder, an inner cylinder, a discharge hopper, a seal cover, a heating wire, a shifting mechanism and an air exhaust mechanism, the top of the rack is connected with the outer cylinder, the inner cylinder is rotatably connected in the outer cylinder, the middle of the bottom of the inner cylinder is connected with the discharge hopper, and the discharge hopper is connected with the seal cover. Two discharging ports are formed in the bottom of the inner barrel, a detachable sealing cover is arranged on the inner barrel, a heating wire is installed between the outer barrel and the inner barrel, a stirring mechanism used for stirring powder is rotationally connected into the inner barrel, and an air exhausting mechanism used for exhausting air in the inner barrel is arranged on the outer barrel. During drying treatment, the powder can be stirred through rotation of the stirring plate while heating and drying are carried out, so that the powder can be scattered and prevented from being agglomerated, and the processing quality and efficiency of the powder are guaranteed.

Description

Technical Field

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

[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 tungsten's high melting point, high strength, high density and good electrical and thermal conductivity, as well as 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. After the mixing is completed, the mixed powder needs to be dried.

[0003] Currently, 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 and the 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 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 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 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, 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, an exhaust mechanism for extracting the air inside the inner cylinder is provided on the outer 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 a driving assembly for driving the rotating frame and the toggle plate to rotate is provided on the outer cylinder.

[0006] In addition, it is particularly preferred that the driving assembly includes a driving motor, a driving gear and a gear ring, the driving motor is installed on the top of the outer cylinder, the output shaft of the driving motor is connected to the driving gear, the rotating frame is connected to the gear ring, and the gear ring is meshed with the driving gear.

[0007] In addition, it is particularly preferred that the air extraction mechanism includes an air pump, an air extraction pipe, an air guide housing, an air intake pipe, a breathable film and a connecting plate, an air pump is installed at the bottom of the outer tube, the air intake end of the air pump is connected to the air extraction pipe, the outer tube is connected to a connecting plate, both sides of the connecting plate are connected to the air guide housing, the two air guide housings are connected to each other, both sides of the connecting plate are connected to the air intake pipe, the air intake pipe is located in the air guide housing, the air intake pipe is connected to the air extraction pipe, and the outer side of the air intake pipe is sheathed with a breathable film.

[0008] In addition, it is particularly preferred that a blocking mechanism is further included, the blocking mechanism includes a cylinder, a connecting rod 1 and a blocking block, the bottom of the inner tube is connected to the cylinder, the telescopic rod of the cylinder is connected to the connecting rod 1, and both sides of the connecting rod 1 are connected to blocking blocks for blocking the discharge port.

[0009] In addition, it is particularly preferred that a crushing mechanism is also included, the crushing mechanism includes a crushing frame, a crushing block, a crushing roller, an elastic member and an extrusion assembly, the top of the inner cylinder is connected to a crushing frame, both sides of the crushing frame are slidably connected to crushing blocks, the bottom of the crushing block is evenly and rotatably connected to multiple crushing rollers, an elastic member is connected between the crushing block and the crushing frame, and a discharge trough is opened in the middle of the bottom of the crushing frame.

[0010] In addition, it is particularly preferred that the extrusion assembly includes a swivel, a push block, a sliding rod, a wedge-shaped extrusion block and a wedge-shaped pressure block, the gear ring is connected to a swivel, the inner ring of the swivel is connected to a plurality of push blocks at even intervals along the circumferential direction, the middle of the crushing frame is slidably connected to a sliding rod, the top of the sliding rod is connected to a wedge-shaped pressure block, the wedge-shaped pressure block is located at the moving track of the push block, the bottom of the sliding rod is connected to a wedge-shaped extrusion block, and the wedge-shaped extrusion block can push the two crushing blocks away from each other when moving.

[0011] In addition, it is particularly preferred that a connecting sleeve and a knocking rod are also included, the tops of the two crushing blocks are connected to the knocking rods, and the connection points on both sides of the two air guide shells are connected to the connecting sleeves.

[0012] In addition, it is particularly preferred that it further comprises a second connecting rod, a collar and a fixed thorn, the collar can be sleeved on the outside of the air intake pipe and move along the air intake pipe, a plurality of fixed thorns are evenly spaced and connected inside the collar, the fixed thorns can puncture the breathable film, and the collar is connected to the second connecting rod. Beneficial Effects

[0013] 1. During the drying process, the present invention can stir the powder by rotating the stir plate while heating and drying, so as to break up the powder and prevent the powder from agglomerating, thereby ensuring the quality and efficiency of the powder processing.

[0014] 2. When the inner cylinder is vacuumed, the present invention can block the powder through the breathable film to prevent the powder from being drawn out together, thereby avoiding the waste of powder and saving production costs. At the same time, it can also prevent the powder from spreading into the air, thus ensuring the processing environment.

[0015] 3. The powder in the present invention can be put into the crushing frame, and then the crushing block can be controlled to move to drive the crushing roller to crush the powder. If there is agglomeration of powder, it can also be crushed by the crushing roller, further avoiding the occurrence of powder agglomeration. Brief Description of the Figures

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

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

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

[0019] Figure 4 It is a schematic diagram of the structure of the air guide housing, the air intake pipe and the air permeable film of the present invention.

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

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

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

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

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

[0025] Figure 10 This is a schematic diagram of the structure of the connecting rod 2, the collar and the suction pipe of the present invention.

[0026] Figure 11 It is a schematic diagram of the structure 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, toggle plate, 75, gear ring, 81, air pump, 82, suction pipe, 83, air guide shell, 84, suction pipe, 85, breathable film, 86, connecting plate, 91, swivel, 92, crushing frame, 93, crushing block, 931, crushing roller, 94, elastic part, 95, sliding rod, 96, wedge-shaped extrusion block, 97, wedge-shaped pressure block, 98, push block, 101, connecting sleeve, 102, knocking rod, 111, cylinder, 112, connecting rod one, 113, blocking block, 121, connecting rod two, 122, collar, 123, fixed thorn. Specific implementation method

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] A drying treatment device for producing tungsten-based composite powder, such as Figure 1-Figure 4 As shown, it includes a frame 1, an outer cylinder 2, an inner cylinder 3, a discharge hopper 4, a sealing cover 5, a heating wire 6, a toggle mechanism and an exhaust 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, and two discharge ports are provided at the bottom of the inner cylinder 3, which connect the inside of the inner cylinder 3 with the discharge hopper 4. A detachable sealing cover 5 is provided 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 toggle mechanism for toggling the powder is rotatably connected inside the inner cylinder 3, and an exhaust mechanism for extracting the air inside the inner cylinder 3 is provided on the outer cylinder 2.

[0030] If Figure 2 As shown in FIG. 1 , the toggle mechanism includes a rotating frame 73, a driving assembly and a toggle plate 74. The rotating frame 73 is rotatably connected in the inner cylinder 3. A plurality of toggle plates 74 are evenly spaced and connected to the rotating frame 73. The toggle plates 74 are V-shaped. When the toggle plates 74 rotate, the powder at both ends of the inner cylinder 3 can be transferred to the middle. The outer cylinder 2 is provided with a driving assembly for driving the rotating frame 73 and the toggle plates 74 to rotate.

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

[0032] If Figure 3 and Figure 4 As shown in FIG. 1 , the air extraction mechanism includes an air pump 81, an air extraction pipe 82, an air guide shell 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 tube 2. The air suction end of the air pump 81 is connected to the air extraction pipe 82. The right side of the outer tube 2 is connected to a connecting plate 86. The front and rear 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. The front and rear sides of the connecting plate 86 are connected to the air suction pipe 84. The air suction pipe 84 is located in the air guide shell 83. The air suction pipe 84 is connected to the air extraction pipe 82, so that the air pump 81 can absorb the air inside the inner tube 3 through the air suction pipe 84 when it is in operation. The air suction pipe 84 is sleeved with a breathable film 85 on the outside. The breathable film 85 is used to block the powder to prevent the powder from being sucked away by the air suction pipe 84.

[0033] If Figure 5 As shown, it also includes a blocking mechanism, which includes a cylinder 111, a connecting rod 112 and a blocking block 113. The bottom of the inner tube 3 is connected to the cylinder 111, and the telescopic rod of the cylinder 111 is connected to the connecting rod 112. Both sides of the connecting rod 112 are connected to the blocking blocks 113, and the blocking blocks 113 can block the discharge port.

[0034] ​​When the tungsten-based composite powder needs to be dried, the present device can be used to dry the tungsten-based composite powder. During operation, the cover 5 is opened first, and then the powder can be added into the inner tube 3, and then the heating wire 6 is controlled to heat the inside of the inner tube 3. While heating, the air pump 81 is controlled to operate through the exhaust pipe 82 so that the air intake pipe 84 inhales air, and the inner tube 3 is vacuumed. When the air is exhausted, the powder can be blocked by the breathable film 85 to prevent the powder from being extracted together. At this time, the driving motor 71 is controlled to operate through the driving gear 72 and the ring gear 75 to drive the rotating frame 73 to rotate. When the rotating frame 73 rotates, it can drive the toggle plate 74 to rotate. When the toggle plate 74 rotates, It can disturb the powder inside the inner cylinder 3, making the powder looser and assisting in drying the powder. While disturbing, it can also transfer the powder to the middle of the inner cylinder 3. Repeating this process can dry the powder. After drying, the telescopic rod of the cylinder 111 can be controlled to extend to drive the connecting rod 112 and the block 113 to move downward, so that the 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 powder can be dried. During drying, the powder can be repeatedly moved by the toggle plate 74 to prevent the powder from agglomerating. At the same time, when vacuuming, a breathable film 85 is also provided to block the powder to prevent the powder from being drawn out together.

[0035] If Figure 6-Figure 8 As shown, it also includes a crushing mechanism, which includes 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 tube 3 is connected to the crushing frame 92, and the crushing blocks 93 are slidably connected to the left and right sides of the crushing frame 92. The crushing blocks 93 can slide left and right along the inside of the crushing frame 92. The bottom of the crushing block 93 is evenly spaced and connected to multiple crushing rollers 931. An elastic member 94 is connected between the crushing block 93 and the crushing frame 92. The elastic member 94 is a connecting spring. A discharge trough is opened in the middle of the bottom of the crushing frame 92.

[0036] If Figure 6-Figure 8As shown, the extrusion assembly includes 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 inner ring of the gear ring 75. A plurality of push blocks 98 are connected to the inner ring of the swivel 91 at even intervals along the circumferential direction. A sliding rod 95 is slidably connected to 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 block 97 is connected to the top of the sliding rod 95. The wedge-shaped pressure block 97 is located at the moving track of the pushing block 98, so that the pushing block 98 can contact with the wedge-shaped pressure block 97 and squeeze the wedge-shaped pressure block 97 to move when moving. The bottom of the sliding rod 95 is connected to the wedge-shaped extrusion block 96. The left and right side surfaces 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 toggle plate 74 toggles the powder, the powder will be toggled upward, and then the powder will fall down. At this time, the fallen powder will fall into the crushing frame 92. When the gear ring 75 rotates, it can drive the swivel 91 and the push block 98 to rotate. When the push block 98 rotates, it will contact the wedge-shaped pressure block 97 and squeeze the wedge-shaped pressure block 97 to move downward. When the wedge-shaped pressure 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 crushing blocks 93 on both sides away from each other. The elastic member 94 is compressed, and the crushing block 93 moves downward. When the push block 98 is in motion, it can drive the crushing roller 931 to move together. When the push block 98 rotates to disengage from the wedge-shaped pressure block 97, the crushing blocks 93 on both sides are reset under the action of the elastic member 94. The crushing blocks 93 reset and squeeze the lower inclined surface of the wedge-shaped squeezing block 96, so that the sliding rod 95 moves up to the moving track of the push block 98. This is repeated, so that the crushing block 93 can drive the crushing roller 931 to move back and forth to crush the powder. If there is agglomerated powder, it can be crushed by the crushing roller 931, and the crushed powder will be discharged from the crushing frame 92 through the discharge chute, thereby playing the role of crushing the agglomerated powder.

[0038] If Figure 9 As shown in the figure, it also includes a connecting sleeve 101 and a knocking rod 102. The tops of the two crushing blocks 93 are connected to the knocking rod 102, and the connecting parts on both sides of the two air guide shells 83 are connected to the connecting sleeves 101. The knocking rod 102 can move and contact with the connecting sleeves 101.

[0039] ​​​When the crushing 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 intake pipe 84 to vibrate, thereby shaking off the powder attached to the outer layer of the breathable film 85, and preventing the powder from adhering to the outer layer of the breathable film 85.

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

[0041] When installing the breathable film 85, the end of the breathable film 85 can be inserted into the fixing thorn 123, and then the collar 122 can be sleeved on the outside of the air intake pipe 84. At this time, the connecting rod 121 is pushed to drive the collar 122 to move along the air intake pipe 84, and the installation of the breathable film 85 can be completed. When the breathable film 85 needs to be removed, the connecting rod 112 and the collar 122 can be directly pulled out to complete the removal of 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 is not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of 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 claims attached to 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 toggle 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), and the inner cylinder ( 3) is rotatably connected to a toggle mechanism for toggling the powder, the outer cylinder (2) is provided with an exhaust mechanism for extracting the air inside the inner cylinder (3), the toggle mechanism comprises a rotating frame (73), a driving component and a toggle plate (74), the inner cylinder (3) is rotatably connected to a rotating frame (73), 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, and the outer cylinder (2) is provided with a driving component for driving the rotating frame (73) and the toggle plate (74) to rotate.

2. The drying treatment device for producing tungsten-based composite powder according to claim 1, characterized in that: The driving assembly comprises a driving motor (71), a driving gear (72) and a ring gear (75); the driving motor (71) is mounted on the top of the outer cylinder (2); the driving gear (72) is connected to the output shaft of the driving motor (71); the ring gear (75) is connected to the rotating frame (73); and the ring gear (75) is meshed with the driving gear (72).

3. A drying treatment device for producing tungsten-based composite powder as claimed in claim 2, characterized in that: The air extraction mechanism comprises an air pump (81), an air extraction pipe (82), an air guide shell (83), an air intake pipe (84), an air permeable film (85) and a connecting plate (86). The air pump (81) is installed at the bottom of the outer tube (2). The air intake end of the air pump (81) is connected to the air extraction pipe (82). The outer tube (2) is connected to a connecting plate (86). 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 air permeable film (85) is sleeved on the outer side of the air intake pipe (84).

4. The drying treatment device for producing tungsten-based composite powder according to claim 1, characterized in that: It also includes a blocking mechanism, which includes a cylinder (111), a connecting rod (112) and a blocking block (113); the bottom of the inner tube (3) is connected to the cylinder (111); the telescopic rod of the cylinder (111) is connected to the connecting rod (112); and both sides of the connecting rod (112) are connected to blocking blocks (113) for blocking the discharge port.

5. The drying treatment device for producing tungsten-based composite powder according to claim 3, characterized in that: The invention also comprises a crushing mechanism, the crushing mechanism comprising 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) being connected to the crushing frame (92), both sides of the crushing frame (92) being slidably connected to the crushing blocks (93), the bottom of the crushing block (93) being rotatably connected to a plurality of crushing rollers (931) at even intervals, an elastic member (94) being connected between the crushing block (93) and the crushing frame (92), and a discharge trough being provided in the middle of the bottom of the crushing frame (92).

6. A drying treatment device for producing tungsten-based composite powder as claimed in claim 5, characterized in that: The extrusion assembly comprises a rotating ring (91), a pushing block (98), a sliding rod (95), a wedge-shaped extrusion block (96) and a wedge-shaped pressure block (97); the rotating ring (91) is connected inside the gear ring (75); a plurality of pushing blocks (98) are connected to the inner ring of the rotating ring (91) at even intervals along the circumferential direction; the sliding rod (95) is slidably connected in the middle of the crushing frame (92); the top of the sliding rod (95) is connected to a wedge-shaped pressure block (97); the wedge-shaped pressure 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 the two crushing blocks (93) away from each other.

7. The drying treatment device for producing tungsten-based composite powder according to claim 5, characterized in that: It also includes a connecting sleeve (101) and a knocking rod (102), the tops of the two crushing blocks (93) are connected to the knocking rod (102), and the connecting parts on both sides of the two air guide housings (83) are connected to the connecting sleeves (101).

8. The drying treatment device for producing tungsten-based composite powder according to claim 3, characterized in that: It also includes a second connecting rod (121), a ring (122) and a fixed thorn (123); the ring (122) can be sleeved on the outside of the air intake pipe (84) and move along the air intake pipe (84); a plurality of fixed thorns (123) are evenly spaced and connected inside the ring (122); the fixed thorns (123) can puncture the breathable film (85); and the ring (122) is connected to the second connecting rod (121).

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