Bucket elevator for extraction unit

Abstract

The utility model discloses a bucket elevator for an extraction unit, which comprises a sealing bin, a bucket elevator, a transmission mechanism and a motor, and mainly aims to distribute medicinal materials of an upper-stage extraction machine in a semi-cylindrical groove in a concentrated manner due to the action of gravity after the medicinal materials enter the sealing bin, and the motor controls a driving chain wheel to rotate so as to drive the upper-stage extraction machine to rotate. The chain drives the lifting hopper to rotate at a constant speed, and the movement path of the lifting hopper is similar to the outline of the semi-cylindrical groove, so that the lifting hopper conveys materials at the bottom of the sealing bin into a next-stage extraction machine in batches, the materials are not prone to being left, and a solvent in the materials flows out along the through groove in the conveying process, so that the solvent in the materials is controlled to be at a low level; the concentration gradient required by countercurrent extraction is kept, redundant solvents can be recycled, and the economic benefit of medicinal material extraction is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices, and in particular to a bucket elevator for an extraction unit. Background Technology

[0002] In the countercurrent extraction process of Chinese medicinal materials, the raw materials and solvents are continuously fed in a metered manner, and they come into contact and move continuously in the extraction machine. Because the raw materials and solvents move in opposite directions, the soluble substances in the medicinal materials can be fully dissolved, while the solvent consumption can be controlled at a minimum level. In order to improve the extraction efficiency, a multi-stage continuous extraction process is usually adopted. An elevator is required between the upper and lower extraction machines to transport the medicinal materials in the upper extraction machine to the lower extraction machine.

[0003] Traditional bucket elevators are mostly non-enclosed, which can easily cause solvent evaporation and material leakage. To avoid contamination, the sealing requirements for medicinal material extraction equipment are relatively high. At the same time, the bottom of the bucket of a conventional bucket elevator is a closed structure, which will carry excess solvent with the material into the next extraction machine during the conveying process, thereby increasing the solvent concentration in the next extraction machine and affecting the extraction efficiency of medicinal materials. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is: a bucket elevator for an extraction unit, including a sealed chamber, lifting buckets, a transmission mechanism, and a motor. The sealed chamber is inclined, and one side of the sealed chamber is provided with a feed end for sealing and connecting to the upper extraction machine, and the top is provided with a discharge end for connecting to the lower extraction machine. A transmission mechanism is installed inside the sealed chamber. The transmission mechanism includes a driving sprocket and a driven sprocket located at both ends of the sealed chamber, an auxiliary sprocket evenly distributed in a straight line between the driving sprocket and the driven sprocket, and a chain meshing and connecting the driving sprocket, the driven sprocket, and the auxiliary sprocket. The lifting buckets are evenly distributed on the chain. The top of the sealed chamber is provided with a motor for driving the lifting buckets to move. The bottom of the lifting buckets is provided with a channel for solvent to flow out, and the bottom of the sealed chamber is a semi-cylindrical groove.

[0005] Using the above technical solution, after the medicinal materials from the upper-stage extractor enter the sealed chamber, they are concentrated in the semi-cylindrical groove due to gravity. The motor controls the rotation of the drive sprocket, which in turn drives the lifting hopper to rotate at a constant speed via a chain. The movement path of the lifting hopper is similar to the contour of the semi-cylindrical groove, allowing the lifting hopper to transfer the material at the bottom of the sealed chamber to the lower-stage extractor in batches, making it less likely for material to remain. During the transfer process, the solvent in the material flows out along the channel, keeping the solvent level in the material at a low level and maintaining the concentration gradient required for countercurrent extraction. Excess solvent can be recycled, improving the economic efficiency of medicinal material extraction.

[0006] The present invention is further configured such that the sealing chamber is provided with a partition between the driving sprocket and the driven sprocket, the auxiliary sprockets are evenly distributed in a straight line on both sides of the partition, and the chain is connected to the driving sprocket, the driven sprocket and the auxiliary sprocket in a ring shape through meshing.

[0007] Using the above technical solution, the solvent flowing out from the bottom of the hopper is collected and recovered through the partition until it reaches the bottom of the sealed chamber. The auxiliary sprocket provides support for the chain between the driving sprocket and the driven sprocket, avoiding chain bending caused by factors such as large chain span and excessive weight of the hopper, and ensuring stable operation of the transmission mechanism.

[0008] The present invention is further configured such that the chain is provided with an adapter, and both ends of the lifting hopper are connected to the chain through the adapter.

[0009] Furthermore, the chain has several links and pins connecting adjacent links. The adapter has shaft holes and mounting holes for connecting the links and the hopper. The adapter is installed on the links via pins, and the hopper is fixedly connected to the adapter via mounting holes.

[0010] By adopting the above technical solution, the length of the chain link is fixed, which also makes the installation distance between adjacent adapters equal, indirectly making the lifting buckets evenly distributed on the chain, effectively avoiding chain vibration and ensuring smooth chain transmission.

[0011] The present invention is further configured such that the top of the lifting hopper is provided with an opening groove, the bottom of the lifting hopper is provided with an arc surface, and the arc surface is provided with an array of through grooves.

[0012] The above technical solution is adopted in which the direction of the opening groove is the same as the direction of movement of the lifting hopper, so as to meet the needs of the lifting hopper to sink and pick up and discharge materials. The through groove forms a mesh at the bottom of the lifting hopper, which reduces its own weight and balances the air pressure inside and outside the lifting hopper, and prevents materials from adhering to the lifting hopper.

[0013] The present invention is further configured such that the sealing chamber is provided with a flange at the feed end for connecting an external sealing chamber.

[0014] By adopting the above technical solution, the flange is sealed to the discharge pipe of the extraction machine to avoid leakage of medicinal materials and solvent, reduce material waste, and prevent solvent volatilization from affecting the working environment.

[0015] The present invention is further provided that the top surface of the sealed chamber is provided with an observation window and a screw for locking the observation window.

[0016] By adopting the above technical solution, the operating status of the transmission mechanism inside the sealed chamber can be directly viewed through the observation window, and the observation window can be opened, which is beneficial for the subsequent cleaning and maintenance of the hoist.

[0017] The present invention is further configured such that a liquid outlet switch is provided at the bottom of the semi-cylindrical groove of the sealed chamber.

[0018] Using the above technical solution, the liquid outlet switch is used to periodically recover the solvent that has settled at the bottom, thereby improving economic efficiency.

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a partially enlarged view of the transmission mechanism connecting the lifting hopper of this utility model;

[0023] Figure 4 This is a schematic diagram of the material lifting method of this utility model;

[0024] Among them: 1-Sealed chamber, 2-Feeding hopper, 3-Transmission mechanism, 4-Motor, 5-Adapter, 6-Liquid outlet switch, 11-Feeding end, 12-Discharge end, 13-Semi-cylindrical groove, 14-Baffle plate, 15-Flange, 16-Observation window, 17-Screw, 21-Through groove, 22-Open groove, 23-Arc surface, 31-Driving sprocket, 32-Driven sprocket, 33-Auxiliary sprocket, 34-Chain, 35-Chain link, 36-Pin, 51-Shaft hole, 52-Mounting hole; Detailed Implementation

[0025] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0026] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the intentions or conventions of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0027] like Figure 1 , 2As shown, this utility model provides a bucket elevator for an extraction unit, including a sealed chamber 1, a lifting bucket 2, a transmission mechanism 3, and a motor 4. The sealed chamber 1 is inclined, and one side of the sealed chamber 1 is provided with a feed end 11 for sealing and connecting to the upper extraction machine, and the top is provided with a discharge end 12 for connecting to the lower extraction machine. The transmission mechanism 3 is installed inside the sealed chamber 1. The transmission mechanism 3 includes a driving sprocket 31 and a driven sprocket 32 ​​located at both ends of the sealed chamber 1, an auxiliary sprocket 33 evenly distributed in a straight line between the driving sprocket 31 and the driven sprocket 32, and a chain 34 meshing and connecting the driving sprocket 31, the driven sprocket 32, and the auxiliary sprocket 33. The lifting bucket 2 is evenly distributed on the chain 34. The top of the sealed chamber 1 is provided with a motor 4 for driving the lifting bucket 2 to move. The bottom of the lifting bucket 2 is provided with a through groove 21 for solvent to flow out. The bottom of the sealed chamber 1 is a semi-cylindrical groove 13.

[0028] In this embodiment, a partition 14 is provided between the driving sprocket 31 and the driven sprocket 32 ​​in the sealing chamber 1. The auxiliary sprockets 33 are evenly distributed on both sides of the partition 14 in a straight line. The chain 34 is connected to the driving sprocket 31, the driven sprocket 32 ​​and the auxiliary sprocket 33 in a ring shape through meshing. The solvent flowing out of the bottom of the lifting hopper 2 is collected and recovered through the partition 14 until it reaches the bottom of the sealing chamber 1. The auxiliary sprocket 33 provides support for the chain 34 between the driving sprocket 31 and the driven sprocket 32, avoiding the bending of the chain 34 due to factors such as the large span of the chain 34 and the excessive weight of the lifting hopper 2, and ensuring the stable operation of the transmission mechanism 3.

[0029] Combination Figure 3 As shown, in this embodiment, the chain 34 is provided with a connector 5. Both ends of the hopper 2 are connected to the chain 34 through the connector 5. The chain 34 is provided with a plurality of chain links 35 and pins 36 connecting adjacent chain links 35. The connector 5 is provided with shaft holes 51 and mounting holes 52 for connecting the chain links 35 and the hopper 2. The connector 5 is mounted on the chain links 35 through the pins 36. The hopper 2 is fixedly connected to the connector 5 through the mounting holes 52. The length of the chain links 35 is fixed, which also makes the installation distance between adjacent connectors 5 equal, indirectly making the hopper 2 evenly distributed on the chain 34, effectively avoiding the phenomenon of chain 34 shaking, and ensuring smooth transmission of the chain 34.

[0030] In this embodiment, the top of the lifting hopper 2 is provided with an opening groove 22, and the bottom of the lifting hopper 2 is provided with an arc surface 23. The arc surface 23 is provided with an array of through grooves 21. The direction of the opening groove 22 is the same as the direction of movement of the lifting hopper 2, which meets the requirements of the lifting hopper 2 sinking to pick up and discharge materials. The through grooves 21 form a mesh structure at the bottom of the lifting hopper 2, which reduces its own weight and balances the air pressure inside and outside the lifting hopper 2, and prevents materials from being adsorbed inside the lifting hopper 2. The sealing chamber 1 is provided with a flange 15 at the feed end 11 for external connection of the sealing chamber 1. The flange 15 is sealed to the discharge pipe of the extraction machine to prevent leakage of medicinal materials and solvent, reduce material waste, and prevent solvent volatilization from affecting the working environment.

[0031] In this embodiment, the top surface of the sealed chamber 1 is provided with an observation window 16 and a screw 17 for locking the observation window 16. The operating status of the transmission mechanism 3 inside the sealed chamber 1 can be viewed intuitively through the observation window 16, and the observation window 16 can be opened, which is beneficial for the subsequent cleaning and maintenance of the hoist.

[0032] In this embodiment, the sealing chamber 1 is equipped with a liquid outlet switch 6 at the bottom of the semi-cylindrical groove 13. The liquid outlet switch 6 is a stainless steel faucet, which is used to periodically recover the solvent that has settled to the bottom, thereby improving economic efficiency.

[0033] Combination Figure 4 As shown, the working principle of this utility model is as follows: the medicinal material from the upper extraction machine enters the sealed chamber 1 through the feed end 11 and is concentrated and deposited in the semi-cylindrical groove 13 of the sealed chamber 1 under the action of gravity; the motor 4 drives the active sprocket 31 to rotate through the synchronous belt, and drives the driven sprocket 32 ​​and the auxiliary sprocket 33 to rotate synchronously through the chain 34, so that the lifting hopper 2 moves in a uniform circulation, picking up the bottom material in sequence and lifting it upward to the discharge end 12, and sending it to the lower extraction machine. During this transmission process, the solvent in the material flows out continuously from the through groove 21 at the bottom of the lifting hopper 2, and is collected and recovered to the bottom of the sealed chamber 1 through the partition 14, thereby controlling the solvent content in the material at a low level, maintaining the concentration gradient required for the countercurrent extraction of the lower extraction machine, and the excess solvent can be recycled, improving the economic efficiency of medicinal material extraction.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bucket elevator for an extraction unit, characterized in that, The device includes a sealed chamber (1), a feeding hopper (2), a transmission mechanism (3), and a motor (4). The sealed chamber (1) is inclined, and one side of the sealed chamber (1) is provided with a feed end (11) for sealing and connecting to the upper-level extractor, and the top is provided with a discharge end (12) for connecting to the lower-level extractor. The transmission mechanism (3) is installed inside the sealed chamber (1). The transmission mechanism (3) includes a driving sprocket (31) and a driven sprocket (32) located at both ends of the sealed chamber (1), and the sprockets are evenly distributed in a straight line. An auxiliary sprocket (33) is located between the driving sprocket (31) and the driven sprocket (32), and a chain (34) simultaneously meshes with the driving sprocket (31), the driven sprocket (32) and the auxiliary sprocket (33). The lifting hoppers (2) are evenly distributed on the chain (34). The top of the sealed chamber (1) is provided with a motor (4) for driving the lifting hoppers (2) to move. The bottom of the lifting hoppers (2) is provided with a channel (21) for solvent to flow out. The bottom of the sealed chamber (1) is a semi-cylindrical groove (13).

2. The bucket elevator for an extraction unit according to claim 1, characterized in that: The sealed chamber (1) is provided with a partition (14) between the driving sprocket (31) and the driven sprocket (32). The auxiliary sprockets (33) are evenly distributed on both sides of the partition (14) in a straight line. The chain (34) is connected to the driving sprocket (31), the driven sprocket (32) and the auxiliary sprocket (33) in a ring shape through meshing.

3. The bucket elevator for an extraction unit according to claim 2, characterized in that: The chain (34) is provided with a connector (5), and both ends of the lifting hopper (2) are connected to the chain (34) through the connector (5).

4. The bucket elevator for an extraction unit according to claim 3, characterized in that: The chain (34) has several links (35) and pins (36) connecting adjacent links (35). The adapter (5) has shaft holes (51) and mounting holes (52) for connecting the links (35) and the hopper (2). The adapter (5) is installed on the links (35) through the pins (36), and the hopper (2) is fixedly connected to the adapter (5) through the mounting holes (52).

5. A bucket elevator for an extraction unit according to claim 3, characterized in that: The top of the hopper (2) is provided with an opening groove (22), and the bottom of the hopper (2) is provided with an arc surface (23), and the arc surface (23) is provided with an array of through grooves (21).

6. The bucket elevator for an extraction unit according to claim 1, characterized in that: The sealing chamber (1) is located at the feed end (11) and has a flange (15) for connecting the sealing chamber (1) to the outside.

7. A bucket elevator for an extraction unit according to claim 1, characterized in that: The top surface of the sealed chamber (1) is provided with an observation window (16) and a screw (17) for locking the observation window (16).

8. A bucket elevator for an extraction unit according to claim 1, characterized in that: The sealed chamber (1) is equipped with a liquid outlet switch (6) at the bottom of the semi-cylindrical groove (13).

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