Feeding and discharging device of vacuum drying machine

Abstract

The utility model relates to a feeding and discharging device of a vacuum drying machine, which comprises a drying machine body and a feeding structure used for loading materials into the drying machine body, and a lifting structure used for driving the feeding structure to move vertically is arranged between the feeding structure and the drying machine body. The hydraulic driving machine is used for driving the feeding structure to move in the direction close to or away from the drying machine body; the feeding structure comprises a supporting plate, a feeding pipe and a discharging pipe, the supporting plate is fixed to one end of the feeding pipe, and the discharging pipe communicates with the output end of the feeding pipe; a spiral feeding piece is arranged in the feeding pipe, and the discharging end of the discharging pipe is used for being inserted into a feeding port of a drying machine body. The feeding convenience of the vacuum drying machine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum dryers, in particular to a loading and unloading device of a vacuum dryer. Background Art

[0002] The double-cone vacuum dryer is a double-cone rotating tank. Steam or hot water is introduced into the jacket for heating. The wet material absorbs heat and evaporates under vacuum. The water vapor is pumped away by the vacuum pump. The rotation of the tank and the vacuum state can jointly promote the uniform drying of the material.

[0003] In the prior art, vacuum dryers are usually loaded by manual handling or other transportation equipment is used to deliver materials into the vacuum dryer. However, the feed port of the vacuum dryer is at a certain height. Continuous handling and lifting operations will accelerate worker fatigue, consume manpower, and gradually reduce subsequent loading efficiency. Alternatively, using transportation equipment for loading will waste a lot of manpower and material resources, and will be less convenient and economical. Utility Model Content

[0004] Based on the above description, the utility model provides a loading and unloading device for a vacuum dryer to solve the problem of inconvenient loading of the vacuum dryer.

[0005] The utility model solves the above technical problems with the following technical solutions: a loading and unloading device for a vacuum dryer comprises a dryer body and a loading structure for loading materials into the dryer body, a lifting structure for driving the loading structure to move vertically, and a hydraulic drive for driving the loading structure to move toward or away from the dryer body are provided between the loading structure and the dryer body;

[0006] The feeding structure includes a support plate, a feeding pipe and a discharge pipe, wherein the support plate is fixed to one end of the feeding pipe, and the discharge pipe is connected to the output end of the feeding pipe;

[0007] A spiral feeding piece is provided in the feeding pipe, and the discharge end of the discharge pipe is used to be inserted into the feed port of the dryer body.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a silo is fixed to the side wall of the feeding pipe close to the support plate, the silo is communicated with the inner cavity of the feeding pipe, and the width of the silo gradually widens in the direction away from the feeding pipe.

[0010] Furthermore, a feeding shaft is provided in the feeding tube, the spiral feeding piece is fixedly sleeved on the outside of the feeding shaft, and a driving structure for driving the feeding shaft to rotate is provided on the support plate.

[0011] Furthermore, a raised edge is fixed on one side of the spiral feeding piece close to the inner wall of the discharge pipe, and the raised edge is arranged in the middle section of the spiral feeding piece.

[0012] Furthermore, a drainage channel is provided in the support plate, and a water collection grid communicating with the drainage channel is provided on the upper surface of the support plate, and the water collection grid is located in the feeding pipe.

[0013] Furthermore, a plurality of water leakage holes are provided at intervals on the surface of the spiral feeding piece located in the communication area between the silo and the discharge pipe.

[0014] Furthermore, the discharge pipe includes an inclined section and a vertical section, the vertical section is used to be inserted into the feed port of the dryer body, and the inclined section is used to connect the vertical section and the feed pipe;

[0015] The inclined section gradually inclines from a direction away from the feeding pipe to a direction close to the silo.

[0016] Furthermore, an extension sliding plate is fixed on the dryer body, a sliding groove is provided on the extension sliding plate, and the feeding structure is slidably connected in the sliding groove.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. The present invention provides a feeding structure on the side of the dryer body, so that the feeding device can move horizontally and vertically. At the same time, the feeding device includes a feeding pipe with a spiral feeding piece inside, so that the material can be delivered vertically upward into the dryer body through the feeding pipe, making the loading of the dryer body more convenient and quick;

[0019] 2. A raised edge is provided on the outer edge of the spiral feed piece. On the one hand, it can reduce the situation where the material is stuck in the gap between the spiral feed piece and the inner wall of the feed tube, and at the same time, it can make the moisture in the material flow along the spiral feed piece to the drainage channel in the support plate;

[0020] 3. The discharge pipe is provided with an inclined section and a vertical section so that the material can be smoothly delivered to the dryer body along the discharge pipe after being discharged from the feed pipe, thereby reducing the occurrence of material accumulation in the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a loading and unloading device of a vacuum dryer provided in an embodiment of the present application;

[0022] Figure 2 This is a partial cross-sectional schematic diagram for illustrating the internal structure of the feeding tube according to an embodiment of the present application;

[0023] Figure 3 This is a structural schematic diagram from another perspective for illustrating the driving structure of an embodiment of the present application;

[0024] Figure 4 It is a structural diagram of the dryer body of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Dryer body; 11. Extended sliding plate; 111. Chute; 12. Positioning block; 2. Feeding structure; 21. Support plate; 211. Water collection grid; 22. Feed pipe; 221. Rotating hole; 23. Feed shaft; 24. Spiral feed piece; 241. Raised edge; 242. Leakage hole; 25. Hopper; 26. Discharge pipe; 261. Inclined section; 262. Vertical section; 27. Concave frame; 28. Roller; 29. Lifting structure; 3. Hydraulic drive; 4. Drive structure; 41. Drive motor; 42. First pulley; 43. Drive belt; 44. Second pulley. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0029] The present application discloses a loading and unloading device for a vacuum dryer. Figure 1-4 A loading and unloading device for a vacuum dryer includes a dryer body 1 and a loading structure 2. An extension sliding plate 11 is fixed to the bottom of the dryer body 1, and the loading structure 2 is slidably disposed on the extension sliding plate 11. Specifically, a chute 111 is defined on the extension sliding plate 11, and the loading structure 2 includes a roller 28 slidably disposed within the chute 111. A hydraulic drive 3 is provided between the extension sliding plate 11 and the loading structure 2 for pushing the loading structure 2 to slide along the chute 111.

[0030] The feeding structure 2 includes a support plate 21 and a feed pipe 22. The feed pipe 22 is fixedly mounted on the top of the support plate 21. A hopper 25 and a discharge pipe 26 are fixed to the feed pipe 22. The hopper 25 communicates with the side wall at the bottom of the feed pipe 22, and the discharge pipe 26 communicates with the side wall at the top of the feed pipe 22. The inner wall of the hopper 25 is an inclined surface, and the width of the hopper 25 gradually increases as it moves away from the feed pipe 22, making it easier for materials to be transported from the hopper 25 to the feed pipe 22.

[0031] A feed shaft 23 is provided within the feed tube 22, onto which a spiral feed piece 24 is fixedly mounted. A raised edge 241 is provided at one end of the spiral feed piece 24, near the inner wall of the feed tube 22. The raised edge 241 is located only in the middle of the spiral feed piece 24. The area where the spiral feed piece 24 connects to the discharge tube 26, and the area where the spiral feed piece 24 connects to the silo 25, are not provided with the raised edge 241. When material is poured into the silo 25, it flows along the inclined surface of the silo 25 into the feed tube 22 and falls onto the spiral feed piece 24. The rotating feed shaft 23 drives the spiral feed piece 24 in a circular motion, simultaneously conveying the material. When the material reaches the discharge tube 26, it passes through the discharge tube 26 and falls into the dryer body 1.

[0032] Providing a raised edge 241 can reduce the gap between the spiral feeding piece 24 and the inner wall of the feeding tube 22 where the material is stuck, thereby making the material transportation smoother. At the same time, for materials with a high water content, providing a raised edge 241 will allow the moisture in the material to flow along the spiral feeding piece 24 to the bottom of the feeding tube 22.

[0033] Furthermore, a drainage channel is provided in the support plate 21, and a water collection grid 211 connected to the drainage channel is provided on the surface of the support plate 21. The water collection grid 211 is located in the feed pipe 22 and is arranged around the feed shaft 23, so that the water collected on the spiral feed sheet 24 can flow into the drainage channel and be discharged.

[0034] In another preferred embodiment, a plurality of leakage holes 242 are spaced apart on the plate surface of the spiral feeding piece 24 where no raised edge 241 is provided at the bottom. By providing the leakage holes 242, the converged water flow can directly drip onto the water collection grid 211 through the leakage holes 242 and be collected and discharged into the drainage channel, thereby dispersing the water flow and reducing the water flow from converging to the end of the spiral feeding piece 24, reducing the low drainage efficiency of the water collection grid 211, and allowing the water flow to converge to the bottom of the feeding pipe 22.

[0035] A concave frame 27 is also provided at the bottom of the support plate 21, and a lifting structure 29 is provided between the support plate 21 and the concave frame 27. The lifting structure 29 specifically includes a plurality of hydraulic jacking parts, which can drive the support plate 21 and the feed pipe 22 to rise and fall through the lifting structure 29; at the same time, the discharge pipe 26 includes an inclined section 261 for communicating with the feed pipe 22 and a vertical section 262 for plugging into the discharge port of the dryer body 1. When loading the vacuum dryer, the vertical section 262 of the feed pipe 22 is first moved to the top of the feed port by using the lifting mechanism, and then the loading structure 2 is moved until the vertical section 262 is located directly above the feed port of the vacuum dryer. The vertical section 262 is then driven down by the lifting mechanism again until it is plugged into the feed port to reduce the possibility of material scattering from the feed port during the feeding process.

[0036] The inclined section 261 gradually tilts away from the feeding pipe 22 and toward the silo 25 , so that the material transported by the feeding pipe 22 can more smoothly enter the vertical section 262 along the inclined section 261 and be transported into the dryer body 1 .

[0037] The bottom wall of the support plate 21 is also provided with a driving structure 4 for driving the feed shaft 23 to rotate. The driving structure 4 includes a driving motor 41. The driving motor 41 is fixedly mounted on the top wall of the support plate 21. The output end of the driving motor 41 passes through the support plate 21 and is fixedly mounted with a first pulley 42. A transmission belt 43 is installed on the first pulley 42 for transmission. A second pulley 44 is also installed on the transmission belt 43 for transmission. The second pulley 44 is fixedly mounted on one end of the feed shaft 23.

[0038] The output end of the driving motor 41 drives the first pulley 42 to rotate. The rotating first pulley 42 drives the second pulley 44 to rotate by cooperating with the transmission belt 43, so that the second pulley 44 drives the feeding shaft 23 to rotate.

[0039] In order to stably install the feed shaft 23 and reduce deviation, rotation holes 221 are opened on the top wall of the feed tube 22 and the support plate 21. The feed shaft 23 is rotatably installed in the two rotation holes 221. When the feed shaft 23 rotates, the two ends will rotate in the two rotation holes 221 respectively.

[0040] The working principle of the present invention is as follows: when the feeding structure 2 of the present application is used for feeding, the hydraulic driving machine 3 is first used to drive the feeding structure 2 to slide horizontally along the chute 111, and the lifting structure 29 is used to drive the feeding pipe 22 to rise and fall, so that the vertical section 262 is inserted into the feeding port of the dryer body 1; then the material is poured into the hopper 25, and the material will enter the feeding pipe 22 along the inclined surface of the hopper 25 and fall onto the spiral feeding piece 24, and then the driving motor 41 is turned on, and the output end of the driving motor 41 will drive the first pulley 42 to rotate, and the rotating first pulley 42 will drive the second pulley 44 to rotate through cooperation with the transmission belt 43, so that the second pulley 44 drives the feeding shaft 23 to rotate, and the continuously rotating feeding shaft 23 will drive the spiral feeding piece 24 to perform a circular motion, and at the same time the spiral feeding piece 24 will transport the material, and when the material moves to the discharge pipe 26, it will be transported to the dryer body 1 through the discharge pipe 26.

[0041] When the dryer body 1 is running, the height of the discharge pipe 26 is adjusted again by the lifting cylinder to separate it from the feed port of the dryer body 1, and then the hydraulic drive 3 is used to push the feeding structure 2 away from the dryer body 1 so that the feeding structure 2 does not interfere with the rotation of the dryer body 1 to dry the internal material.

[0042] In a preferred embodiment, a positioning block 12 is provided on the side wall of the dryer body 1, and an arc-shaped groove is provided on the surface of the positioning block 12 that matches the side wall of the feed pipe 22, so that when the feeding structure 2 is feeding, the feed pipe 22 and the positioning block 12 abut against each other, reducing the horizontal movement of the feeding structure 2, so that the feeding structure 2 can achieve more stable feeding.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A loading and unloading device for a vacuum dryer, characterized in that: The invention comprises a dryer body (1) and a loading structure (2) for loading materials into the dryer body (1); a lifting structure (29) for driving the loading structure (2) to move vertically, and a hydraulic driving machine (3) for driving the loading structure (2) to move toward or away from the dryer body (1); The feeding structure (2) comprises a support plate (21), a feeding pipe (22) and a discharge pipe (26), wherein the support plate (21) is fixed to one end of the feeding pipe (22), and the discharge pipe (26) is communicated with the output end of the feeding pipe (22); A spiral feeding piece (24) is provided in the feeding pipe (22), and the discharge end of the discharge pipe (26) is used for being plugged into the feed port of the dryer body (1).

2. The loading and unloading device of a vacuum dryer according to claim 1, characterized in that: A silo (25) is fixed to the side wall of the feeding pipe (22) close to the support plate (21), the silo (25) is communicated with the inner cavity of the feeding pipe (22), and the width of the silo (25) gradually widens in a direction away from the feeding pipe (22).

3. The loading and unloading device of a vacuum dryer according to claim 1, characterized in that: A feeding shaft (23) is provided in the feeding tube (22), the spiral feeding piece (24) is fixedly sleeved on the outside of the feeding shaft (23), and a driving structure (4) for driving the feeding shaft (23) to rotate is provided on the support plate (21).

4. The loading and unloading device of a vacuum dryer according to claim 1, characterized in that: A raised edge (241) is fixed on one side of the spiral feeding piece (24) close to the inner wall of the discharge pipe (26), and the raised edge (241) is arranged in the middle section of the spiral feeding piece (24).

5. The loading and unloading device of a vacuum dryer according to claim 1, characterized in that: A drainage channel is provided in the support plate (21), and a water collection grid (211) communicating with the drainage channel is provided on the upper surface of the support plate (21), and the water collection grid (211) is located in the feeding pipe (22).

6. The loading and unloading device of a vacuum dryer according to claim 5, characterized in that: The surface of the spiral feeding piece (24) located in the communication area between the silo (25) and the discharge pipe (26) is provided with a plurality of water leakage holes (242) at intervals.

7. The loading and unloading device of a vacuum dryer according to claim 2, characterized in that: The discharge pipe (26) comprises an inclined section (261) and a vertical section (262), wherein the vertical section (262) is used to be inserted into the feed port of the dryer body (1), and the inclined section (261) is used to connect the vertical section (262) and the feed pipe (22); The inclined section (261) gradually inclines from a direction away from the feeding pipe (22) to a direction close to the silo (25).

8. The loading and unloading device of a vacuum dryer according to claim 1, characterized in that: An extended sliding plate (11) is fixed on the dryer body (1), a sliding groove (111) is provided on the extended sliding plate (11), and the feeding structure (2) is slidably connected in the sliding groove (111).

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