Double-cone rotary vacuum dryer

Abstract

The utility model discloses a double-cone rotary vacuum drying machine which comprises a bearing installation base and a double-cone vacuum outer cylinder, and a moisture removal transmission assembly and a heat flow circulation assembly are arranged on the two sides of the double-cone vacuum outer cylinder respectively. External hot steam or heat energy can be injected into the cavity of the heat energy utilization inner container and the vacuum drying inner barrel through the heat flow circulation set, after the heat energy is fully utilized by the heat energy utilization inner container, waste heat steam is discharged through the air outlet inner pipe, the steam or the heat energy can be recycled through the heat flow circulation set, and moisture is discharged through the moisture discharging transmission assembly. The moisture removal transmission assembly can drive the double-cone vacuum outer barrel to rotate and drive materials in the vacuum drying inner barrel to turn over up and down, the stirring assembly can correspondingly rotate and stir the materials, the materials are not prone to caking in the drying process, the heat energy utilization efficiency of the device is high, drying is efficient and rapid, the materials can be turned over up and down, mixed and stirred, and the materials are not prone to caking. And the drying efficiency and quality are further improved.

Description

Technical Field

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

[0002] The double-cone rotary vacuum dryer is a high-efficiency device that integrates rotary mixing and vacuum drying. It consists of 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 continuously, the drying speed is accelerated, the drying efficiency is improved, and uniform drying is achieved. The double-cone rotary vacuum dryer can also perform swirling stirring during operation, which facilitates uniform drying of the material.

[0003] While the double cone rotary vacuum dryer can perform rotary mixing during vacuum drying, in actual operation, the wet material carries moisture, resulting in high viscosity. During the rotation of the tank, the wet material easily agglomerates into lumps. The moisture inside these lumps is difficult to evaporate, and the machine lacks a mixing and stirring device. Consequently, clumping easily occurs during the drying process, affecting the overall evaporation efficiency and quality of the desiccant. Furthermore, the thermal energy utilization rate of hot steam or gas during thermal drying is relatively low, resulting in heat energy waste and further reducing the dryer's drying efficiency, thus impacting the drying effect.

[0004] Therefore, we propose a double-cone rotary vacuum dryer to solve the above problems. Utility Model Content

[0005] The problem this invention aims to solve is the issue of easy agglomeration and poor drying efficiency in existing double-cone rotary vacuum dryers.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a double-cone rotary vacuum dryer, including a support mounting base and a double-cone vacuum outer cylinder. A dehumidification transmission assembly and a heat flow circulation assembly are respectively provided on both sides of the double-cone vacuum outer cylinder. A vacuum drying inner cylinder is installed inside the double-cone vacuum outer cylinder. Sealing switch covers and stirring assemblies are correspondingly provided at both ends of the vacuum drying inner cylinder. The dehumidification transmission assembly and the heat flow circulation assembly are correspondingly located on both sides of the top of the support mounting base. The stirring assembly extends and fits into the vacuum drying inner cylinder. A heat-utilizing inner liner is provided on the outer side of the vacuum drying inner cylinder.

[0007] In a preferred embodiment of the double-cone rotary vacuum dryer described in this utility model, the top of the bearing mounting base is provided with bearing bearing seats on both sides, the dehumidification transmission assembly and the heat flow circulation assembly are respectively rotatably connected in the two bearing bearing seats, and the double-cone vacuum outer cylinder is supported by the two bearing bearing seats and rotates in the middle of the bearing mounting base.

[0008] In a preferred embodiment of the double-cone rotary vacuum dryer of this utility model, the vacuum drying inner cylinder is centrally fixed to the inner side of the double-cone vacuum outer cylinder, and the upper and lower sides of the vacuum drying inner cylinder extend outwards. The sealing switch cover and the stirring assembly are correspondingly installed at the upper and lower ends of the vacuum drying inner cylinder, and the heat energy utilization liner is correspondingly arranged in the cavity of the double-cone vacuum outer cylinder and the vacuum drying inner cylinder.

[0009] In a preferred embodiment of the double cone rotary vacuum dryer of this utility model, the dehumidification transmission assembly extends through the inner side of the vacuum drying inner cylinder on the side near the heat flow circulation group. One end of the dehumidification transmission assembly extends through the inner cylinder of the vacuum drying cylinder and is connected to a moisture-absorbing filter cover. The other end of the dehumidification transmission assembly is provided with a dehumidification end. A drive motor is provided on the support mounting base. Both the middle part of the dehumidification transmission assembly and the output end of the drive motor are provided with drive discs, and a drive belt is connected to the two drive discs.

[0010] In a preferred embodiment of the double-cone rotary vacuum dryer described in this utility model, the dehumidification transmission assembly is further provided with a pressure measuring gauge, and the dehumidification transmission assembly is fixedly connected to the double-cone vacuum outer cylinder and the vacuum drying inner cylinder.

[0011] In a preferred embodiment of the double-cone rotary vacuum dryer of this utility model, the heat flow circulation group includes a hot air inlet pipe and an air outlet inner pipe. The air outlet inner pipe is located inside the hot air inlet pipe. The end of the air outlet inner pipe near the dehumidification transmission component passes through the hot air inlet pipe and connects between the double-cone vacuum outer cylinder and the heat energy utilization inner liner. The hot air inlet pipe passes through to the inside of the heat energy utilization inner liner. The hot air inlet pipe is rotatably connected to the double-cone vacuum outer cylinder and the heat energy utilization inner liner. The side of the air outlet inner pipe away from the double-cone vacuum outer cylinder passes through the hot air inlet pipe. The air outlet inner pipe is provided with a return pipe and a drain pipe.

[0012] In a preferred embodiment of the double cone rotary vacuum dryer described in this utility model, control valves are provided on both the reflux pipe and the exhaust pipe, and a temperature monitor is provided on the inner air outlet pipe.

[0013] In a preferred embodiment of the double cone rotary vacuum dryer of this utility model, the stirring assembly includes a stirring motor and an auxiliary stirring frame. The stirring motor is located at the bottom of the vacuum drying inner cylinder, and the auxiliary stirring frame is rotatably connected to the inside of the vacuum drying inner cylinder. The bottom of the auxiliary stirring frame is connected to the output end of the stirring motor, and a sealing oil seal is provided at the connection between the auxiliary stirring frame and the vacuum drying inner cylinder.

[0014] In a preferred embodiment of the double-cone rotary vacuum dryer of this utility model, the heat-utilizing inner liner includes an insulating inner liner and heat-conducting blades. Multiple heat-conducting blades are evenly installed on the outside of the vacuum drying inner cylinder. The insulating inner liner is disposed between the vacuum drying inner cylinder and the double-cone vacuum outer cylinder. Both the upper and lower sides of the insulating inner liner are open.

[0015] The beneficial effects of this utility model are as follows: By providing a dehumidification transmission assembly and a heat flow circulation assembly on both sides of the double-cone vacuum outer cylinder, heat energy injection for drying and moisture discharge can be performed separately. The heat flow circulation assembly can inject external hot steam or heat energy into the cavity of the heat energy utilization inner liner and the vacuum drying inner cylinder. After the heat energy utilization inner liner fully utilizes the heat energy, the residual heat steam is discharged through the air outlet pipe. The heat flow circulation assembly can circulate the steam or heat energy, ensuring full utilization of heat energy. During the heat energy conduction process, the vacuum drying inner cylinder, being in a vacuum state, can discharge moisture through the dehumidification transmission assembly. The dehumidification transmission assembly and the heat flow circulation assembly can be installed in two bearing seats, allowing the bearing seats to rotate and support the double-cone vacuum outer cylinder. The dehumidification transmission assembly can drive the double-cone vacuum outer cylinder to rotate, causing the material inside the vacuum drying inner cylinder to tumble up and down. The stirring assembly can rotate and stir accordingly, making it less likely for the material to clump during the drying process. This results in high heat energy utilization efficiency, efficient and rapid drying, and the ability to tumble and mix the material, preventing clumping and further improving drying efficiency and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a frontal three-dimensional schematic diagram of a double-cone rotary vacuum dryer.

[0018] Figure 2 This is a frontal cross-sectional three-dimensional schematic diagram of a double-cone rotary vacuum dryer.

[0019] Figure 3This is a top-view cross-sectional three-dimensional schematic diagram of a double-cone rotary vacuum dryer.

[0020] Figure 4 A top-view three-dimensional view of the connection structure between the insulating inner liner and the heat-conducting blades of a double-cone rotary vacuum dryer.

[0021] Schematic diagram.

[0022] Figure 5 This is a frontal perspective three-dimensional schematic diagram of the connection structure between the drive motor and the auxiliary stirring rack of a double cone rotary vacuum dryer.

[0023] The meanings of the reference numerals in the attached diagram are as follows: 1. Support mounting base; 2. Double cone vacuum outer cylinder; 3. Dehumidification transmission assembly; 31. Moisture absorption filter cover; 32. Dehumidification end; 33. Drive motor; 34. Drive disc; 35. Transmission belt; 36. Pressure gauge; 4. Heat flow circulation group; 41. Hot air inlet pipe; 42. Outlet inner pipe; 43. Return pipe; 44. Drain pipe; 45. Control valve; 46. Temperature monitor; 5. Vacuum drying inner cylinder; 6. Sealing switch cover plate; 7. Stirring assembly; 71. Stirring motor; 72. Auxiliary stirring frame; 8. Heat energy utilization inner liner; 81. Insulating inner liner; 82. Heat guiding blades; 9. Support bearing seat. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1-5 This embodiment is a double-cone rotary vacuum dryer, including a support mounting base 1 and a double-cone vacuum outer cylinder 2. The two sides of the double-cone vacuum outer cylinder 2 are respectively provided with a dehumidification transmission assembly 3 and a heat flow circulation assembly 4. A vacuum drying inner cylinder 5 is installed inside the double-cone vacuum outer cylinder 2. The two ends of the vacuum drying inner cylinder 5 are respectively provided with a sealing switch cover plate 6 and a stirring assembly 7. The dehumidification transmission assembly 3 and the heat flow circulation assembly 4 are respectively provided on the top two sides of the support mounting base 1. The stirring assembly 7 extends and fits into the vacuum drying inner cylinder 5. A heat energy utilization inner liner 8 is provided on the outside of the vacuum drying inner cylinder 5.

[0026] By providing a dehumidification transmission assembly 3 and a heat flow circulation group 4 on both sides of the double cone vacuum outer cylinder 2, the dehumidification transmission assembly 3 and the heat flow circulation group 4 can be respectively installed in two bearing seats 9, so that the bearing mounting seat 1 provides rotational support for the double cone vacuum outer cylinder 2.

[0027] The inner cavity of the double-cone vacuum outer cylinder 2 is equipped with a corresponding vacuum drying inner cylinder 5. The heat flow circulation group 4 can inject external hot steam or heat energy into the cavity of the heat energy utilization inner liner 8 and the vacuum drying inner cylinder 5. After the heat energy utilization inner liner 8 fully utilizes the heat energy, the heat flow circulation group 4 discharges the residual heat steam, forming a heat energy conduction. During the heat energy conduction process, the vacuum drying inner cylinder 5 is in a vacuum state, which allows the moisture to be discharged by the dehumidification transmission component 3. The dehumidification transmission component 3 and the heat flow circulation group 4 can respectively perform heat energy drying and moisture discharge, which facilitates the drying of materials. The heat flow circulation group 4 can circulate and utilize steam or heat energy, making full use of heat energy.

[0028] Meanwhile, the dehumidification transmission component 3 can drive the double-cone vacuum outer cylinder 2 to rotate, causing the material in the vacuum drying inner cylinder 5 to follow and rotate up and down. The stirring component 7 can rotate and stir accordingly, so that the material can be mixed and stirred while being turned up and down, making it less likely for the material to clump during the drying process, thus accelerating the drying speed. This makes the device highly efficient in terms of thermal energy utilization, and the drying is efficient and fast. Furthermore, the ability to turn up and down the material and mix and stir prevents clumping, further improving the drying efficiency and quality.

[0029] The vacuum drying inner cylinder 5 can perform vacuum drying operations. The gap cavity between the double-cone vacuum outer cylinder 2 and the vacuum drying inner cylinder 5 can be used for heat energy injection. Thus, when the material enters the vacuum drying inner cylinder 5 through the sealing switch cover plate 6, the material inside the vacuum drying inner cylinder 5 is in a vacuum state. After the material inside the vacuum drying inner cylinder 5 is dried by the heat energy in the cavity, its moisture can be quickly extracted from the tank, improving the drying efficiency.

[0030] In this embodiment, the top of the support mounting base 1 is provided with support bearing seats 9 on both sides. The dehumidification transmission assembly 3 and the heat flow circulation assembly 4 are rotatably connected to the two support bearing seats 9 respectively. The double cone vacuum outer cylinder 2 is supported by the two support bearing seats 9 and rotates in the middle of the support mounting base 1.

[0031] By setting the bearing seat 9, the dehumidification transmission assembly 3 and the heat flow circulation assembly 4 can be installed in the two bearing seats 9 respectively, so that the bearing mounting seat 1 can rotate and support the double cone vacuum outer cylinder 2, which can stabilize the bearing and facilitate the rotation and turning of the double cone vacuum outer cylinder 2.

[0032] In this embodiment, the vacuum drying inner cylinder 5 is fixed in the center to the inner side of the double cone vacuum outer cylinder 2. The upper and lower sides of the vacuum drying inner cylinder 5 extend out of the vacuum drying inner cylinder 5. The sealing switch cover plate 6 and the stirring assembly 7 are installed at the upper and lower ends of the vacuum drying inner cylinder 5 respectively. The heat energy utilization inner liner 8 is set in the cavity of the double cone vacuum outer cylinder 2 and the vacuum drying inner cylinder 5 respectively.

[0033] By setting the vacuum drying inner cylinder 5 to be centrally fixed inside the double-cone vacuum outer cylinder 2, the heat conduction is stable after the heat energy is injected. The sealing switch cover 6 and the stirring component 7 are installed at the upper and lower ends of the vacuum drying inner cylinder 5 respectively. The sealing switch cover 6 can perform sealing and material introduction and export functions, and the stirring component 7 can perform material mixing and stirring, which improves the uniformity and convenience of material drying.

[0034] In this embodiment, the side of the dehumidification transmission assembly 3 near the heat flow circulation group 4 extends into the inner side of the vacuum drying inner cylinder 5. One end of the dehumidification transmission assembly 3 extends into the vacuum drying inner cylinder 5 and is connected to a moisture-absorbing filter cover 31. The other end of the dehumidification transmission assembly 3 is provided with a dehumidification end head 32. A drive motor 33 is provided on the support mounting base 1. A drive disc 34 is provided in the middle of the dehumidification transmission assembly 3 and at the output end of the drive motor 33. A drive belt 35 is connected to the two drive discs 34.

[0035] A drive motor 33 is correspondingly provided on the dehumidification transmission component 3. A drive disc 34 is installed at the output end of the drive motor 33 and at the tube body of the dehumidification transmission component 3. The drive motor 33 can drive the tube body of the dehumidification transmission component 3 through the drive disc 34 and the transmission belt 35. The rotation of the dehumidification transmission component 3 drives the double cone vacuum outer cylinder 2 to rotate and mix. When the double cone vacuum outer cylinder 2 rotates, the material in the vacuum drying inner cylinder 5 can follow and be turned upside down and inside and outside in a regular manner. When heat drying is performed, the drying speed of the material is accelerated. The moisture absorption filter cover 31 performs dehumidification and filtration, and the moisture is stably discharged from the dehumidification end 32, which facilitates the drying of the vacuum drying inner cylinder 5.

[0036] In this embodiment, the dehumidification transmission assembly 3 is also equipped with a pressure measuring gauge 36, and the dehumidification transmission assembly 3 is fixedly connected to the double cone vacuum outer cylinder 2 and the vacuum drying inner cylinder 5.

[0037] The pressure gauge 36 can reliably measure the pressure changes inside the dehumidification transmission assembly 3 pipe, ensuring stable and convenient dehumidification.

[0038] In this embodiment, the heat flow circulation group 4 includes a hot air inlet pipe 41 and an air outlet inner pipe 42. The air outlet inner pipe 42 is located inside the hot air inlet pipe 41. One end of the air outlet inner pipe 42 near the dehumidification transmission component 3 passes through the hot air inlet pipe 41 and is connected between the double cone vacuum outer cylinder 2 and the heat energy utilization inner liner 8. The hot air inlet pipe 41 passes through to the inside of the heat energy utilization inner liner 8. The hot air inlet pipe 41 is rotatably connected to the double cone vacuum outer cylinder 2 and the heat energy utilization inner liner 8. The side of the air outlet inner pipe 42 away from the double cone vacuum outer cylinder 2 passes through the hot air inlet pipe 41. The air outlet inner pipe 42 is provided with a return pipe 43 and a drain pipe 44.

[0039] The hot air inlet pipe 41 and the air outlet pipe 42 remain stationary when the vacuum drying inner cylinder 5 rotates. The hot air inlet pipe 41 stably injects heat energy into the heat utilization inner liner 8, and then guides it out through the air outlet pipe 42. The outlet end of the air outlet pipe 42 is equipped with a return pipe 43 and an exhaust pipe 44. The temperature monitor 46 can detect the heat. When the heat is high, the heat energy can be guided back into the hot air inlet pipe 41 through the return pipe 43 for heat energy recycling.

[0040] In this embodiment, control valves 45 are provided on both the return pipe 43 and the drain pipe 44, and a temperature monitor 46 is provided on the air outlet pipe 42.

[0041] Two sets of control valves 45 are provided on the return pipe 43 and the drain pipe 44 respectively. The temperature monitor 46 can control the opening and closing of the return pipe 43 and the drain pipe 44 according to the temperature change. The heat energy is convenient to circulate and the heat energy utilization effect is good, which reduces the waste of heat energy.

[0042] In this embodiment, the stirring assembly 7 includes a stirring motor 71 and an auxiliary stirring frame 72. The stirring motor 71 is located at the bottom of the vacuum drying inner cylinder 5, and the auxiliary stirring frame 72 is rotatably connected to the inside of the vacuum drying inner cylinder 5. The bottom of the auxiliary stirring frame 72 is connected to the output end of the stirring motor 71, and a sealing oil seal is provided at the connection between the auxiliary stirring frame 72 and the vacuum drying inner cylinder 5.

[0043] The stirring motor 71 drives the auxiliary stirring frame 72. During the rotation of the auxiliary stirring frame 72, the material in the vacuum drying inner cylinder 5 is stirred accordingly, so that the material can be mixed and stirred at the same time as it is turned up and down. This makes the material less likely to clump during the drying process, further improving the drying efficiency and uniformity. The oil seal ensures that the auxiliary stirring frame 72 rotates stably and is not prone to leakage, and the vacuum drying inner cylinder 5 can maintain a stable vacuum state.

[0044] In this embodiment, the heat energy utilization inner liner 8 includes an insulated inner liner 81 and heat-conducting blades 82. Multiple heat-conducting blades 82 are evenly installed on the outside of the vacuum drying inner cylinder 5. The insulated inner liner 81 is disposed between the vacuum drying inner cylinder 5 and the double-cone vacuum outer cylinder 2. Both the upper and lower sides of the insulated inner liner 81 are open.

[0045] The upper and lower sides of the inner liner 81 are open, allowing the heat energy injected into the inner liner 81 to be guided out through the upper and lower sides of the inner liner 81, and finally drawn in and discharged through the air outlet pipe 42. The heat-conducting blades 82 play a role in heat energy utilization, increasing the contact area between the vacuum drying inner cylinder 5 and the heat energy, and improving the drying efficiency.

[0046] Working principle:

[0047] By providing a vacuum drying inner cylinder 5 inside the double-cone vacuum outer cylinder 2, the vacuum drying inner cylinder 5 can perform vacuum drying operations. The gap cavity between the double-cone vacuum outer cylinder 2 and the vacuum drying inner cylinder 5 can be used for heat energy injection. Thus, when the material enters the vacuum drying inner cylinder 5 through the sealing switch cover plate 6, the material inside the vacuum drying inner cylinder 5 is in a vacuum state. After the material inside the vacuum drying inner cylinder 5 is dried by the heat energy in the cavity, its moisture can be quickly extracted from the tank, improving the drying efficiency.

[0048] The double-cone vacuum outer cylinder 2 is provided with a dehumidification transmission assembly 3 and a heat flow circulation group 4 on both sides. The top of the support mounting base 1 is provided with a support bearing seat 9 on both sides. The dehumidification transmission assembly 3 and the heat flow circulation group 4 can be installed in the two support bearing seats 9 respectively, so that the support mounting base 1 can be rotated and supported by the dehumidification transmission assembly 3 and the heat flow circulation group 4. The dehumidification transmission assembly 3 is provided with a drive motor 33. The output end of the drive motor 33 and the tube body of the dehumidification transmission assembly 3 are respectively installed with a drive disc 34. The drive motor 33 can drive the tube body of the dehumidification transmission assembly 3 through the drive disc 34 and the transmission belt 35. The dehumidification transmission assembly 3 rotates and drives the double-cone vacuum outer cylinder 2 to rotate and mix. When the double-cone vacuum outer cylinder 2 rotates, the material in the vacuum drying inner cylinder 5 can be turned upside down and can be turned inside out in a regular manner. When heat drying is performed, the drying speed of the material is accelerated.

[0049] A stirring component 7 is provided at the bottom of the vacuum drying inner cylinder 5. When the vacuum drying inner cylinder 5 is tumbling up and down, the stirring component 7 can rotate and stir accordingly. The stirring component 7 includes a stirring motor 71 and an auxiliary stirring frame 72. Running the stirring motor 71 can drive the auxiliary stirring frame 72. During the rotation of the auxiliary stirring frame 72, the material in the vacuum drying inner cylinder 5 is stirred accordingly, so that the material can be mixed and stirred while being tumbled up and down, making it less likely for the material to clump during the drying process, and further improving the drying efficiency and uniformity.

[0050] While driving the double-cone vacuum outer cylinder 2, the dehumidification transmission component 3 can also discharge the moisture from the material dried in the vacuum drying inner cylinder 5. After the dehumidification transmission component 3 extends into the vacuum drying inner cylinder 5, the moisture absorption filter cover 31 performs dehumidification and filtration, and the moisture is stably discharged from the dehumidification end 32, which facilitates the drying of the vacuum drying inner cylinder 5. The pressure measuring gauge 36 can stably measure the pressure change in the tube of the dehumidification transmission component 3, making dehumidification stable and convenient.

[0051] The outer side of the vacuum drying inner cylinder 5 is provided with a heat energy utilization inner liner 8. The heat flow circulation group 4 can inject external hot steam or heat energy into the cavity of the heat energy utilization inner liner 8 and the vacuum drying inner cylinder 5. After the heat energy is fully utilized by the heat energy utilization inner liner 8, the residual heat steam is discharged by the air outlet inner pipe 42 in the heat flow circulation group 4. The heat energy utilization inner liner 8 includes an isolation inner liner 81 and heat-conducting blades 82. The isolation inner liner 81 plays the role of heat energy isolation and flow guidance. The heat energy is first guided to the vacuum drying inner cylinder 5, and then guided by the isolation inner liner 81 to the inner wall of the double cone vacuum outer cylinder 2, forming hot air flow and improving the heat energy utilization efficiency. Multiple heat-conducting blades 82 are correspondingly attached to the inside of the vacuum drying inner cylinder 5. Multiple heat-conducting blades 82 can further improve the heat energy absorption and flow, making the heat energy utilization rate of the vacuum drying inner cylinder 5 higher.

[0052] The heat circulation assembly 4 includes a hot air inlet pipe 41 and an air outlet inner pipe 42. The hot air inlet pipe 41 and the air outlet inner pipe 42 remain stationary while the vacuum drying inner cylinder 5 rotates. The hot air inlet pipe 41 stably injects heat energy into the inner liner 8, which is then guided out through the air outlet inner pipe 42. The outlet end of the air outlet inner pipe 42 is equipped with...

[0053] The bottom of the vacuum drying inner cylinder 5 is equipped with a return pipe 43 and an exhaust pipe 44. The temperature monitor 46 can monitor the heat. When the heat is high, the heat energy can be redirected back to the hot air inlet pipe 41 through the return pipe 43 for heat energy recycling. Two sets of control valves 45 are correspondingly provided on the return pipe 43 and the exhaust pipe 44. The temperature monitor 46 can control the corresponding control valves 45 on the return pipe 43 and the exhaust pipe 44 according to the temperature change. When the temperature monitor 46 shows that the heat is high, the control valve 45 on the exhaust pipe 44 is closed and the control valve 45 on the return pipe 43 is opened. The heat energy recycling is convenient, the heat energy utilization effect is good, the waste of heat energy is reduced, and the drying efficiency is improved.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-cone rotary vacuum dryer characterized by: The device includes a support mounting base (1) and a double-cone vacuum outer cylinder (2). The double-cone vacuum outer cylinder (2) is provided with a dehumidification transmission assembly (3) and a heat flow circulation assembly (4) on both sides. A vacuum drying inner cylinder (5) is installed inside the double-cone vacuum outer cylinder (2). A sealing switch cover plate (6) and a stirring assembly (7) are provided at both ends of the vacuum drying inner cylinder (5). The dehumidification transmission assembly (3) and the heat flow circulation assembly (4) are respectively provided on the top two sides of the support mounting base (1). The stirring assembly (7) extends and fits into the vacuum drying inner cylinder (5). A heat energy utilization inner liner (8) is provided on the outside of the vacuum drying inner cylinder (5).

2. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The top of the bearing mounting base (1) is provided with bearing bearing seats (9) on both sides. The dehumidification transmission assembly (3) and the heat flow circulation assembly (4) are rotatably connected in the two bearing bearing seats (9). The double cone vacuum outer cylinder (2) is supported by the two bearing bearing seats (9) and rotates in the middle of the bearing mounting base (1).

3. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The vacuum drying inner cylinder (5) is fixed in the center to the inside of the double cone vacuum outer cylinder (2). The upper and lower sides of the vacuum drying inner cylinder (5) extend out of the vacuum drying inner cylinder (5). The sealing switch cover plate (6) and the stirring assembly (7) are installed at the upper and lower ends of the vacuum drying inner cylinder (5). The heat energy utilization liner (8) is set in the cavity of the double cone vacuum outer cylinder (2) and the vacuum drying inner cylinder (5).

4. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The dehumidification transmission assembly (3) extends into the inner side of the vacuum drying inner cylinder (5) from the side near the heat flow circulation group (4). One end of the dehumidification transmission assembly (3) extends into the vacuum drying inner cylinder (5) and is connected to a moisture-absorbing filter cover (31). The other end of the dehumidification transmission assembly (3) is provided with a dehumidification end head (32). A drive motor (33) is provided on the bearing mounting base (1). A drive disc (34) is provided in the middle of the dehumidification transmission assembly (3) and at the output end of the drive motor (33). A drive belt (35) is connected to the two drive discs (34).

5. A double-cone rotary vacuum dryer according to claim 4, characterized in that: The dehumidification transmission assembly (3) is also equipped with a pressure measuring gauge (36), and the dehumidification transmission assembly (3) is fixedly connected to the double cone vacuum outer cylinder (2) and the vacuum drying inner cylinder (5).

6. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The heat flow circulation group (4) includes a hot air inlet pipe (41) and an air outlet inner pipe (42). The air outlet inner pipe (42) is located inside the hot air inlet pipe (41). The end of the air outlet inner pipe (42) near the dehumidification transmission assembly (3) passes through the hot air inlet pipe (41) and connects between the double cone vacuum outer cylinder (2) and the heat energy utilization inner liner (8). The hot air inlet pipe (41) passes through to the inside of the heat energy utilization inner liner (8). The hot air inlet pipe (41) is rotatably connected to the double cone vacuum outer cylinder (2) and the heat energy utilization inner liner (8). The side of the air outlet inner pipe (42) away from the double cone vacuum outer cylinder (2) passes through the hot air inlet pipe (41). The air outlet inner pipe (42) is provided with a return pipe (43) and a drain pipe (44).

7. A double-cone rotary vacuum dryer according to claim 6, characterized in that: Both the return pipe (43) and the drain pipe (44) are equipped with control valves (45), and the air outlet pipe (42) is equipped with a temperature monitor (46).

8. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The stirring assembly (7) includes a stirring motor (71) and an auxiliary stirring frame (72). The stirring motor (71) is located at the bottom of the vacuum drying inner cylinder (5). The auxiliary stirring frame (72) is rotatably connected to the inside of the vacuum drying inner cylinder (5). The bottom of the auxiliary stirring frame (72) is connected to the output end of the stirring motor (71). A sealing oil seal is provided at the connection between the auxiliary stirring frame (72) and the vacuum drying inner cylinder (5).

9. A double-cone rotary vacuum dryer according to claim 1, characterized in that: The heat-utilizing inner liner (8) includes an insulating inner liner (81) and heat-conducting blades (82). Multiple heat-conducting blades (82) are evenly installed on the outside of the vacuum drying inner cylinder (5). The insulating inner liner (81) is located between the vacuum drying inner cylinder (5) and the double-cone vacuum outer cylinder (2). Both the upper and lower sides of the insulating inner liner (81) are open.

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