Double-cone vacuum dryer

Abstract

The utility model belongs to the technical field of chemical industry production, and discloses a double-cone vacuum dryer which comprises two supporting seats arranged at intervals and a double-cone tank body located between the two supporting seats, a feeding port and a discharging port are formed in the two ends of the double-cone tank body, rotating shafts are fixedly arranged on the two opposite sides of the double-cone tank body, and the two supporting seats are rotationally connected with the corresponding rotating shafts. Wherein one supporting seat is provided with a driving assembly capable of driving the double-cone tank body to rotate around the rotating shaft, a stirring assembly is installed at the position, close to the feeding port, in the double-cone tank body, and vertical cams are arranged on the two sides, provided with the rotating shaft, of the double-cone tank body. An auxiliary supporting assembly which is matched with the two cams and used for providing supporting force for the double-cone tank body is arranged between the two supporting seats, and the double-cone tank body is further provided with a heating pipe and connected with a vacuumizing device. The double-cone tank has the following advantages and effects that the auxiliary supporting assembly is matched with the cam to support the double-cone tank body, serious abrasion or breakage of the rotating shaft due to overlarge stress difference is avoided, and the double-cone tank has long service life.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to a double cone vacuum dryer. Background Technology

[0002] The double cone vacuum dryer is a double-cone rotating tank. Under vacuum conditions, steam or hot water is introduced into the jacket for heating. The heat comes into contact with the wet material through the inner wall of the tank. The water vapor evaporated after the wet material absorbs heat is drawn away by the vacuum pump through the vacuum exhaust pipe. Because the tank is under vacuum and the rotation of the tank causes the material to tumble up and down and inside and out, the drying speed is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved. However, due to the mechanical devices or other factors installed on the tank, the wear of the rotating shaft is accelerated when the tank rotates around the shaft, thereby shortening the service life of the double cone vacuum dryer. Utility Model Content

[0003] The purpose of this invention is to provide a double-cone vacuum dryer with a long service life.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a double cone vacuum dryer, comprising two support seats arranged at relative intervals and a double cone tank located between the two support seats. The two ends of the double cone tank are respectively provided with a feed inlet and a discharge outlet. A feed tank cover is provided at the feed inlet, and a discharge tank cover is provided at the discharge outlet. Rotating shafts are fixed on opposite sides of the double cone tank. The two support seats are rotatably connected to the corresponding rotating shafts. One of the support seats is provided with a drive assembly capable of driving the double cone tank to rotate around the rotating shaft. A stirring assembly is installed in the double cone tank near the feed inlet. Vertical cams are provided on both sides of the rotating shafts on the double cone tank. An auxiliary support assembly is provided between the two support seats, cooperating with the two cams to provide support for the double cone tank. The double cone tank is also provided with a heating tube and connected to a vacuum pump.

[0005] By adopting the above technical solution, the chemicals to be dried are introduced into the double cone tank through the feed inlet, the feed tank cover is closed, and the heating medium is introduced into the heating pipe to heat the double cone tank and the chemicals inside. The drive component works to drive the double cone tank to rotate around the shaft, causing the double cone tank to rotate. The stirring component works to stir the chemicals in the double cone tank to prevent the chemicals from clumping. The vacuum device removes the water vapor generated during the drying of the chemicals in the double cone tank. When the double cone tank rotates, the auxiliary support component cooperates with the two cams on the double cone tank to provide support force for the double cone tank while ensuring normal rotation. This avoids excessive force difference when the shaft rotates, which could lead to severe wear or even breakage, thus giving this double cone vacuum dryer a long service life.

[0006] A further feature of this invention is that the auxiliary support assembly includes two vertically arranged guide rods, two telescopic springs respectively sleeved on the corresponding guide rods, and a base frame located below the double-cone tank. The base frame is located between and fixedly connected to the two support seats. The two guide rods are respectively arranged directly below the two cams, and their upper ends are fixed with arc-shaped plates for supporting the corresponding cams. The two opposite ends of the cams are convex heels and convex apexes. The convex apexes are located on the cams near the outlet of the double-cone tank. The base frame has two feed... The telescopic spring is located between the arc-shaped plate on the guide rod and the upper side of the base frame, with its two ends fixed to the upper side of the base frame and the outer side of the arc-shaped plate on the guide rod, respectively. A connecting rod is hinged to the lower side of each arc-shaped plate near both ends. The two connecting rods on each arc-shaped plate are symmetrically arranged on both sides of the corresponding guide rod. A slider is installed at the end of each connecting rod away from the corresponding arc-shaped plate. The upper side of the base frame is provided with four strip-shaped grooves for the corresponding sliders to be embedded. The length direction of the strip-shaped grooves is perpendicular to the length direction of the guide rod.

[0007] By adopting the above technical solution, the rotation of the double cone tank drives the two cams to rotate. Due to the structural characteristics of the cams, the cams cause the guide rod to move up and down under the action of the telescopic spring. When the guide rod moves up and down, the arc plate provides an upward support force to the corresponding cam, avoiding the problem of excessive force difference when the shaft rotates, which would lead to severe wear or even breakage of the shaft. The two connecting rods connected to the guide rod are connected to the base frame through the slider groove, ensuring that the guide rod only moves vertically and that the cam is always in contact with the upper side of the corresponding arc plate, ensuring that the auxiliary support components can always function normally during drying.

[0008] A further feature of this invention is as follows: a vertically extending rack 1 is fixed to the lower end of the guide rod; two vertical gears 1 are mounted on the base frame, and the two vertical gears 1 mesh with the corresponding racks 1; a transverse rack 2 is provided at the lower end of each vertical gear 1 on the base frame; the rack 2 is staggered and perpendicular to the rack 1, and a vertical gear 2 is meshed on the rack 2; an extension rod extending radially is provided on the middle of one side of the vertical gear 2, and an elongated hole extending along its length is provided on the extension rod; the base frame is rotatably connected to... There are two vertical turntables. Each turntable has an eccentric part extending outward near its edge on one side, which can be inserted into an elongated hole on a corresponding extension rod. Two mainspring barrels are mounted on the base frame. Each mainspring barrel contains a mainspring and a mainspring shaft. The end of the mainspring is fixed to the corresponding mainspring barrel. The front end of each mainspring is fixedly connected to the corresponding mainspring shaft. A turntable shaft is provided in the middle of the turntable. One end of the turntable shaft is fixedly connected to one end of the mainspring shaft in the corresponding mainspring barrel. The turntable shaft and the mainspring shaft connected to it are coaxially arranged.

[0009] By adopting the above technical solution, the mainspring and the telescopic spring in the mainspring barrel can both store energy in a short time. The two work together to convert the stored energy into a supporting force for the cam and the double cone canister, avoiding the problem of excessive force difference when the shaft rotates, which would lead to severe wear or even breakage of the shaft.

[0010] A further feature of this invention is that the stirring assembly includes a stirring paddle located inside the double-cone tank and a control motor fixed to the outside of the double-cone tank. The stirring paddle is rotatably disposed inside the double-cone tank near the discharge port, with one end extending out of the double-cone tank and fixedly connected to the output shaft of the control motor.

[0011] By adopting the above technical solution, the motor drives the stirring paddle to rotate and stir the chemicals in the double cone tank, preventing them from clumping and shortening the drying time.

[0012] A further feature of this invention is that the drive assembly includes a drive motor fixed on one of the support seats, a pulley one rotatably mounted on the support seat, a pulley two fixed on the rotating shaft on the support seat, and a belt sleeved on the pulley one and the pulley two. The pulley one has a pulley shaft in the middle, and the output shaft of the drive motor is fixedly connected to the pulley shaft and the two are coaxially arranged.

[0013] By adopting the above technical solution, the drive motor drives pulley one to rotate, and under the action of belt drive, pulley two rotates, which drives the shaft to rotate, causing the double cone tank to rotate. The rotation of the double cone tank causes the chemicals that need to be dried to tumble up and down inside the double cone tank, thereby accelerating the drying speed of the chemicals inside the double cone tank.

[0014] A further feature of this invention is that one of the rotating shafts has a receiving hole that penetrates the inner wall of the double-cone tank, and the vacuum pump includes a conduit located inside the receiving hole, a vacuum head located at one end of the conduit, and a vacuum pump for pumping air. The vacuum head is located inside the double-cone tank, and the other end of the conduit is connected to the air inlet of the vacuum pump.

[0015] By adopting the above technical solution, the vacuum head, in conjunction with the conduit and pump body, promptly pumps out the water vapor generated inside the double cone tank during drying, avoiding excessive water vapor retention that could cause the chemicals to become damp again, thereby improving the drying speed.

[0016] A further feature of this invention is that the double-cone tank includes an inner tank and an outer tank, the inner tank is located inside the outer tank, the inlet and the outlet extend from the inner wall of the inner tank to the outer wall of the outer tank, a gap is provided between the outer tank and the inner tank, and the heating tube is located within the gap.

[0017] By adopting the above technical solution, the temperature of the inner tank and the chemicals inside the inner tank can be increased by introducing a heating medium into the heating tube, thereby accelerating the drying speed.

[0018] The beneficial effects of this utility model are: each guide rod is fitted with a telescopic spring and connected to a spring. Both the telescopic spring and the spring can store energy briefly. When the conical tank rotates, the arc plate on the guide rod can continuously provide support to the corresponding cam, avoiding excessive wear and even breakage due to excessive force difference when the rotating shaft drives the double conical tank to rotate. This gives the double conical vacuum dryer a longer service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 This is a partial cross-sectional view of the auxiliary support component in this utility model.

[0022] Figure 4 This is a schematic diagram showing the connection relationship between the mainspring, the mainspring box, and the turntable in this utility model.

[0023] In the diagram, 1. Support base; 2. Double cone tank body; 21. Inner tank; 22. Outer tank; 23. Inlet; 24. Outlet; 3. Inlet tank cover; 4. Outlet tank cover; 5. Rotating shaft; 51. Receiving hole; 6. Drive assembly; 61. Drive motor; 62. Pulley 1; 63. Pulley 2; 64. Belt; 65. Pulley shaft; 7. Stirring assembly; 71. Stirring paddle; 72. Control motor; 8. Cam; 81. Convex heel; 82. Convex top; 9. Auxiliary support assembly; 91. Guide rod; 92. Telescopic spring. ; 93. Base frame; 931. Through hole; 932. Strip groove; 94. Arc plate; 95. Connecting rod; 96. Slider; 97. Rack 1; 98. Vertical gear 1; 99. Rack 2; 10. Heating tube; 11. Vacuum device; 111. Guide tube; 112. Vacuum head; 113. Vacuum pump; 12. Vertical gear 2; 13. Extension rod; 131. Long hole; 14. Turntable; 141. Eccentric part; 142. Turntable shaft; 15. Spring barrel; 151. Spring; 152. Spring shaft. Detailed Implementation

[0024] Example: A double-cone vacuum dryer, such as Figure 1 and Figure 2 As shown, the device includes two support bases 1 arranged at relative intervals, a double cone tank 2 and an auxiliary support assembly 9 located below the double cone tank 2 between the two support bases 1. The double cone tank 2 includes an inner tank 21 and an outer tank 22. The inner tank 21 is located inside the outer tank 22. There is a gap between the outer tank 22 and the inner tank 21, and a heating pipe 10 is provided between them. The inner tank 21 has an inlet 23 and an outlet 24 that penetrate the outside of the outer tank 22 at both ends. The inlet 23 of the outer tank 22 is provided with an inlet cover 3, and the outlet 24 of the outer tank 22 is provided with an outlet cover 4. The double cone tank 2 is also connected to a vacuum device 11. Rotating shafts 5 are fixed on opposite sides of the outer tank 22 on the double cone tank 2. The two support bases 1 are rotatably connected to the corresponding rotating shafts 5. One of the support bases 1 is provided with a drive assembly 6 that can drive the double cone tank 2 to rotate around the rotating shaft 5. A stirring assembly 7 is installed inside the double cone tank 2 near the inlet 23.

[0025] like Figure 1 and Figure 2 As shown, the drive assembly 6 includes a drive motor 61 fixed on one of the support bases 1, a pulley 62 rotatably mounted on the support base 1, a pulley 63 fixed on the shaft 5 on the support base 1, and a belt 64 sleeved on the pulley 62 and the pulley 63. The pulley 62 has a pulley shaft 65 in the middle, which is rotatably connected to the support base 1. The output shaft of the drive motor 61 is fixedly connected to the pulley shaft 65 and the two are coaxially arranged.

[0026] like Figure 1 and Figure 2As shown, the stirring assembly 7 includes a stirring paddle 71 located inside the inner tank 21 of the double cone tank 2 and a control motor 72 fixed on the outside of the outer tank 22 of the double cone tank 2. The stirring paddle 71 is rotatably positioned on the inner side wall of the inner tank 21 of the double cone tank 2 near the discharge port 24. One end of the stirring paddle 71 extends out of the double cone tank 2 and is fixedly connected to the output shaft of the control motor 72.

[0027] like Figures 1 to 4As shown, the outer tank 22 of the double cone tank 2 has vertical cams 8 on both sides of the rotating shaft 5. The two opposite ends of the cams 8 are convex heels 81 and convex apexes 82. The convex apexes 82 are set on the cams 8 near the outlet 24 of the double cone tank 2. The auxiliary support assembly 9 includes two vertical guide rods 91, two telescopic springs 92 respectively sleeved on the corresponding guide rods 91, and a base frame 93 located below the double cone tank 2. The base frame 93 is located between the two support seats 1 and is fixed to them. The two guide rods 91 are respectively set directly below the corresponding cams 8 and the upper end is fixed with an arc-shaped plate 94 for supporting the corresponding cams 8. The base frame 93 has two openings for supplying... The guide rod 91 has a through hole 931 through which a telescopic spring 92 is located between the arc plate 94 on the guide rod 91 and the upper side of the base frame 93, with both ends fixed to the upper side of the base frame 93 and the outer side of the arc plate 94 on the guide rod 91, respectively. Each arc plate 94 has a connecting rod 95 hinged to its lower side near both ends. Two connecting rods 95 on each arc plate 94 are symmetrically arranged on both sides of the corresponding guide rod 91. A slider 96 is installed at the end of each connecting rod 95 away from the corresponding arc plate 94. The upper side of the base frame 93 has four strip grooves 932 for the corresponding sliders 96 to be inserted. The length direction of the strip grooves 932 is perpendicular to the length direction of the guide rod 91. The lower end of the guide rod 91 is fixed. The device includes a vertically extending rack 97, and a base frame 93 with two vertical gears 98 meshing with corresponding racks 97. A transverse rack 99 is located at the lower end of each vertical gear 98 on the base frame 93, and a vertical gear 12 meshes with each rack 99. An extension rod 13 extending radially is fixed to the middle of one side of each vertical gear 12. The extension rod 13 has an elongated hole 131 along its length. Two vertical turntables 14 are rotatably connected to the base frame 93. Each turntable 14 has an outwardly extending section near its edge that can be inserted into the elongated hole 131 on the corresponding extension rod 13. The core 141 has two mainspring barrels 15 mounted on the base frame 93. Each mainspring barrel 15 contains a mainspring 151 and a mainspring shaft 152. The end of the mainspring 151 is fixed to the corresponding mainspring barrel 15, and the front end of each mainspring 151 is fixedly connected to the corresponding mainspring shaft 152. The turntable 14 has a turntable shaft 142 in the middle. One end of the turntable shaft 142 is fixedly connected to one end of the mainspring shaft 152 in the corresponding mainspring barrel 15, and the turntable shaft 142 and the mainspring shaft 152 connected to it are coaxially arranged. Here, rack 1 97 and rack 2 99 are arranged perpendicularly and interleaved. The base frame 93 has two through holes for the corresponding rack 2 99 to pass through, providing support for rack 2 99.

[0028] like Figure 1 and Figure 2As shown, one of the support bases 1 has a mounting hole that extends from one side to the other. One of the rotating shafts 5 is installed in the mounting hole. The rotating shaft 5 has a receiving hole 51 that extends through the inner wall of the inner tank 21 of the double cone tank 2. The vacuum device 11 includes a conduit 111 located in the receiving hole 51, a vacuum head 112 located at one end of the conduit 111, and a vacuum pump 113 for evacuating air. The vacuum head 112 is located inside the inner tank 21 of the double cone tank 2. The other end of the conduit 111 is connected to the air inlet of the vacuum pump 113.

[0029] Working principle: The chemicals to be dried are introduced into the inner tank 21 of the double cone tank 2 through the feed inlet 23 and the feed tank cover 3 is closed. The heating medium is introduced into the heating tube 10 to heat the double cone tank 2 and the chemicals inside. The drive motor 61 drives the pulley 62 to rotate. Under the transmission of the belt 64, the pulley 63 rotates. The pulley 63 drives the rotating shaft 5 to rotate, thereby driving the double cone tank 2 to rotate around the rotating shaft 5. The rotation of the double cone tank 2 drives the two cams 8 to rotate. Due to the cooperation of the cams 8, the telescopic springs 92 and the corresponding springs 151, the guide rod 91 moves up and down. When the guide rod 91 moves up and down, the telescopic springs 92 and the corresponding springs 151 briefly accumulate energy, so that the arc plate 94 on the guide rod 91 continuously provides an upward support force to the corresponding cam 8. This avoids the problem of severe wear or even breakage of the rotating shaft 5 due to excessive force difference when it rotates. This double cone vacuum dryer has a long service life.

[0030] The control motor 72 drives the stirring paddle 71 to rotate, thereby stirring the chemicals in the double cone tank 2 to prevent the chemicals from clumping. The vacuum pump 113 works to pump the water vapor in the inner tank 21 during drying out through the vacuum head 112 from the conduit 111 to the outlet of the vacuum pump 113. After drying, the discharge port 24 of the double cone tank 2 is located at the lower end. Open the discharge tank cover 4 to discharge the dried chemicals from the discharge port 24.

Claims

1. A double-cone vacuum dryer, characterized in that: The device includes two support bases (1) spaced apart from each other and a double-cone tank (2) located between the two support bases (1). The double-cone tank (2) has an inlet (23) and an outlet (24) at its two ends. An inlet cover (3) is provided at the inlet (23), and an outlet cover (4) is provided at the outlet (24). Rotating shafts (5) are fixed on opposite sides of the double-cone tank (2). The two support bases (1) are rotatably connected to the corresponding rotating shafts (5). One of the support bases (1) is equipped with a mechanism for driving the rotating shafts. A drive assembly (6) for rotating the double cone tank (2) around the rotating shaft (5) is provided. A stirring assembly (7) is installed in the double cone tank (2) near the feed inlet (23). Vertical cams (8) are provided on both sides of the rotating shaft (5) on the double cone tank (2). An auxiliary support assembly (9) is provided between the two support seats (1) to cooperate with the two cams (8) to provide support for the double cone tank (2). A heating tube (10) is also provided on the double cone tank (2) and connected to a vacuum device (11).

2. The double-cone vacuum dryer according to claim 1, characterized in that: The auxiliary support assembly (9) includes two vertically arranged guide rods (91), two telescopic springs (92) respectively sleeved on the corresponding guide rods (91), and a base frame (93) located below the double cone tank (2). The base frame (93) is located between the two support seats (1) and is fixedly connected to them. The two guide rods (91) are respectively arranged directly below the two cams (8) and have an arc-shaped plate (94) fixed at the upper end for supporting the corresponding cams (8). The two opposite ends of the cams (8) are a convex heel (81) and a convex top (82). The convex top (82) is located on the cam (8) near the outlet (24) of the double cone tank (2). The base frame (93) has two through holes for the corresponding guide rods (91) to pass through. 931), the telescopic spring (92) is located between the arc plate (94) on the guide rod (91) and the upper side of the base frame (93), and its two ends are respectively fixed to the upper side of the base frame (93) and the outer side of the arc plate (94) on the guide rod (91). Each arc plate (94) has a connecting rod (95) hinged to its lower side near both ends. The two connecting rods (95) on each arc plate (94) are symmetrically arranged on both sides of the corresponding guide rod (91). A slider (96) is installed at the end of the connecting rod (95) away from the corresponding arc plate (94). The upper side of the base frame (93) is provided with four strip grooves (932) for the corresponding sliders (96) to be embedded. The length direction of the strip grooves (932) is perpendicular to the length direction of the guide rod (91).

3. The double-cone vacuum dryer according to claim 2, characterized in that: The guide rod (91) has a vertically extending rack 1 (97) fixed at its lower end. Two vertical gears 1 (98) are mounted on the base frame (93), meshing with the corresponding racks 1 (97). A transverse rack 2 (99) is located at the lower end of each vertical gear 1 (98) on the base frame (93). The rack 2 (99) is perpendicularly arranged to the racks 1 (97) and meshes with a vertical gear 2 (12). An extension rod (13) is provided radially along the middle of one side of the vertical gear 2 (12). An elongated hole (131) is opened on the extension rod (13) along its length. Two vertical turntables (14) are rotatably connected to the base frame (93). Each turntable... One side of the disc (14) near the edge has an eccentric part (141) that extends outward and can be inserted into the elongated hole (131) on the corresponding extension rod (13). Two spring boxes (15) are installed on the base frame (93). Each spring box (15) is provided with a spring (151) and a spring shaft (152). The end of the spring (151) is fixed on the corresponding spring box (15). The front end of each spring (151) is fixedly connected to the corresponding spring shaft (152). The middle part of the disc (14) is provided with a disc shaft (142). One end of the disc shaft (142) is fixedly connected to one end of the spring shaft (152) in the corresponding spring box (15), and the disc shaft (142) and the spring shaft (152) connected to it are coaxially arranged.

4. A double-cone vacuum dryer according to any one of claims 1 to 3, characterized in that: The stirring assembly (7) includes a stirring paddle (71) located inside the double cone tank (2) and a control motor (72) fixed on the outside of the double cone tank (2). The stirring paddle (71) is rotatably disposed inside the double cone tank (2) near the discharge port (24) and one end extends out of the double cone tank (2) and is fixedly connected to the output shaft of the control motor (72).

5. A double-cone vacuum dryer according to any one of claims 1 to 3, characterized in that: The drive assembly (6) includes a drive motor (61) fixed on one of the support bases (1), a pulley (62) rotatably mounted on the support base (1), a pulley (63) fixed on the shaft (5) on the support base (1), and a belt (64) sleeved on the pulley (62) and the pulley (63). The pulley (62) has a pulley shaft (65) in the middle. The output shaft of the drive motor (61) is fixedly connected to the pulley shaft (65) and the two are coaxially arranged.

6. A double-cone vacuum dryer according to claim 5, characterized in that: One of the rotating shafts (5) has a receiving hole (51) that penetrates the inner wall of the double cone tank (2). The vacuum device (11) includes a conduit (111) that passes through the receiving hole (51), a vacuum head (112) located at one end of the conduit (111), and a vacuum pump (113) for pumping air. The vacuum head (112) is located inside the double cone tank (2), and the other end of the conduit (111) is connected to the air inlet of the vacuum pump (113).

7. A double-cone vacuum dryer according to claim 1, characterized in that: The double-cone tank (2) includes an inner tank (21) and an outer tank (22). The inner tank (21) is located inside the outer tank (22). The inlet (23) and the outlet (24) extend from the inner wall of the inner tank (21) to the outer wall of the outer tank (22). There is a gap between the outer tank (22) and the inner tank (21), and the heating tube (10) is located in the gap between them.

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