A discharge unit of an extraction device

Abstract

The utility model provides an extract device's discharge unit, including the blanking channel, the top of blanking channel is linked with a jar body, and the bottom side hinged setting has the blanking cover, the blanking cover is the cover shape that opens to the upwards, the top inner wall of blanking cover is provided with the filter plate of porous, and the bottom intercommunication is provided with the liquid discharge pipe of valve, still be provided with the breather pipe on the blanking cover, the output end of breather pipe is located in the space formed by filter plate and blanking cover. The utility model provides an extract device's discharge unit can improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of extraction tank technology and relates to a discharge unit of an extraction device. Background Technology

[0002] Extraction tanks are commonly used leaching and extraction equipment in the pharmaceutical and chemical industries, particularly suitable for extracting components from plant products. A typical extraction tank mainly consists of a tank body, a feed inlet at the top, and a bottom tilting mechanism. The top of the tilting mechanism has a filter plate, and the bottom connects to a drain pipe. During extraction, the material to be extracted is added to the tank through the feed inlet. Then, stirring and heating are performed as needed. After extraction, the drain pipe at the bottom is opened to drain the liquid, while the solids are filtered by the filter plate, thus separating the filter residue from the filtrate. Finally, after all the filtrate has been drained, the bottom tilting mechanism is opened, allowing the filter residue to fall into a receiving structure below, such as in a vehicle.

[0003] However, in the actual extraction process, it was found that although there were stirring blades in the tank, some materials with higher density or mass were still prone to sedimentation or accumulation at the bottom or moving at a lower height. This resulted in a slower interaction with the extract, leading to a longer extraction cycle and lower production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a discharge unit for an extraction device, which aims to solve the problem of low production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides a discharge unit of an extraction device, including a discharge channel. The top of the discharge channel is connected to a tank, and a discharge hood is hinged to one side of the bottom. The discharge hood is an upward-opening hood. A porous filter plate is provided on the inner wall of the top of the discharge hood, and a drain pipe with a valve is connected to the bottom. A vent pipe is also provided on the discharge hood, and the output end of the vent pipe is located in the space formed by the filter plate and the discharge hood.

[0006] The present invention is further configured such that the cross-section of the feeding channel is rectangular, the feeding cover includes a plate-shaped first feeding part and an arc-shaped second feeding part, the bottom of the first feeding part is connected to the bottom of the second feeding part, and a fan-shaped third feeding part is provided on both sides of the first feeding part and the second feeding part. During extraction, the tops of the first feeding part, the second feeding part and the third feeding part all abut against the bottom of the feeding channel.

[0007] The vent pipe includes an input section horizontally connected to the discharge channel and an output section communicating with the input section. The output section is arc-shaped. The filter plate has a through-hole for the output section to pass through. The outer wall of the output section is movably fitted with the inner wall of the through-hole, or there is a set gap between the outer wall of the output section and the inner wall of the through-hole. When the filter residue is poured out, the end of the output section is located in the space formed by the filter plate and the discharge hood.

[0008] The present invention is further configured such that a plurality of output sections are connected on the input section, the lengths of all the output sections on the same input section are different, and the input section is higher than the filter plate.

[0009] The present invention is further configured such that a plurality of input sections are arranged in parallel, and an input manifold located outside the feeding channel is also included, with the ends of all the input sections communicating with the input manifold.

[0010] The present invention is further configured such that the free ends of the output section are all connected to a horizontal tube, the inner wall of the free end of the horizontal tube is provided with a receiving groove, the inner end of the receiving groove is provided with a funnel-shaped transition groove, the inner end of the transition groove communicates with the inner cavity of the horizontal tube, the inner wall of the free end of the horizontal tube is provided with a reset frame, the inner side of the reset frame is provided with an elastic element that is continuously in a compressed state, the inner end of the elastic element is provided with a one-way ball, the diameter of the one-way ball is smaller than the inner diameter of the receiving groove and larger than the inner diameter of the horizontal tube.

[0011] The present invention is further configured such that a hinge seat is vertically provided at the top of the free end of the output section, and hinge columns are horizontally provided on both sides of the hinge seat. An L-shaped hinge arm is hinged to each hinge column, and a sealing plate is provided at the free end of the two hinge arms. A reset body is also provided at the top of the output section. When the output section is extracted, the outer side of the sealing plate abuts against the first feeding section, and the inner side covers the outlet end of the output section. The free end of the reset body abuts against the first feeding section.

[0012] Compared with the prior art, this utility model provides a discharge unit for an extraction device. The entire extraction device includes a tank, a stirring motor located at the top of the tank, a stirring rod and stirring blades located inside the tank, a feeding port connected to the top of the tank, a discharge channel connected to the bottom of the tank, and a discharge hood. The side of the tank also has a cylinder or hydraulic cylinder for driving the discharge hood to rotate (the figure is for illustrative purposes only and does not represent the actual structure; furthermore, the tank, stirring motor, cylinder, etc., are not the objects of protection claimed in this application). During the extraction process, the filter plate filters the filter residue, allowing the filtrate to pass through normally. After filtration, the valve on the drain pipe is opened, and the filtrate is discharged directly through the drain pipe. After the filtrate is discharged, the discharge hood rotates downwards, allowing the filter residue to slide down the filter plate under gravity.

[0013] During the extraction process, an external air pump injects gas into the lower hood through a vent pipe (ideally, the extraction process can be connected to an external system, requiring only air injection; if not, a specially treated gas, such as an inert gas, must be injected, and the tank top has a dedicated gas exhaust channel, preferably for gas recycling). This gas agitates the substances within the tank, preventing filter residue from settling and increasing the total contact area between the filtrate and the filter residue, thus improving filtration efficiency. Simultaneously, the gas is more widely dispersed after being separated by the filter plates, further enhancing its effectiveness. The gas also accelerates the breakage of filter residue (e.g., leaf-shaped residue), and the lifted residue is better agitated and dispersed by the stirring blades, further improving extraction efficiency and effectiveness. Furthermore, the upward movement of the gas reduces the probability of clogging the filter plate pores, facilitating better subsequent removal of the filter residue. Simultaneously, during the filter cake dumping process, compressed pulsed air can be injected into the lower material hood using the vent pipe, thereby blowing off the filter cake adhering to or stuck on the filter plate, resulting in better filter cake removal. Additionally, a water pipe can be connected to the side of the vent pipe to inject high-pressure water into the lower material hood, achieving flushing and cleaning of the hood and filter plate, further enhancing the cleaning effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first embodiment of the present invention in use;

[0015] Figure 2 yes Figure 1 Enlarged view of section A;

[0016] Figure 3 This is a schematic diagram of the extraction process in Embodiment 1 of this utility model;

[0017] Figure 4This is a schematic diagram of the first embodiment of the present invention during the pouring of filter residue;

[0018] Figure 5 This is a schematic diagram of the vent pipe in Embodiment 1 of this utility model;

[0019] Figure 6 This is a cross-sectional view of the horizontal pipe in Embodiment 1 of this utility model;

[0020] Figure 7 This is a schematic diagram of the output section in Embodiment 2 of this utility model. Figure 1 ;

[0021] Figure 8 yes Figure 7 Enlarged view of section B;

[0022] Figure 9 This is a schematic diagram of the output section in Embodiment 2 of this utility model. Figure 2 .

[0023] The components include: 1. Feeding channel; 2. Feeding hood; 2a. First feeding section; 2b. Second feeding section; 2c. Third feeding section; 3. Filter plate; 4. Drain pipe; 5. Vent pipe; 5a. Input section; 5b. Output section; 5c. Input main pipe; 6. Horizontal pipe; 7. Receiving tank; 8. Transition tank; 9. Reset frame; 10. Elastic element; 11. One-way ball; 12. Hinge seat; 13. Hinge column; 14. Hinge arm; 15. Sealing plate; 16. Reset body. Detailed Implementation

[0024] The discharge unit of the extraction device proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0025] Example 1

[0026] The discharge unit of an extraction device, such as Figures 1 to 6 As shown, it includes a discharge channel 1, the top of which is connected to a tank body, and a discharge cover 2 is hinged to one side of the bottom. The discharge cover 2 is an upward-opening cover. The inner wall of the top of the discharge cover 2 is provided with a porous filter plate 3, and the bottom is connected to a drain pipe 4 with a valve. The discharge cover 2 is also provided with a vent pipe 5, and the output end of the vent pipe 5 is located in the space formed by the filter plate 3 and the discharge cover 2.

[0027] The cross-section of the feeding channel 1 is rectangular. The feeding cover 2 includes a plate-shaped first feeding part 2a and an arc-shaped second feeding part 2b. The bottom of the first feeding part 2a is connected to the bottom of the second feeding part 2b. A fan-shaped third feeding part 2c is provided on both sides of the first feeding part 2a and the second feeding part 2b. During extraction, the tops of the first feeding part 2a, the second feeding part 2b and the third feeding part 2c all abut against the bottom of the feeding channel 1.

[0028] The vent pipe 5 includes an input section 5a horizontally connected to the discharge channel 1 and an output section 5b communicating with the input section 5a. The output section 5b is arc-shaped. The filter plate 3 has a through-hole for the output section 5b to pass through. The outer wall of the output section 5b is movably fitted with the inner wall of the through-hole, or there is a set gap between the outer wall of the output section 5b and the inner wall of the through-hole. When the filter residue is poured out, the end of the output section 5b is located in the space formed by the filter plate 3 and the discharge cover 2.

[0029] The input section 5a is connected to several output sections 5b, and the lengths of all the output sections 5b on the same input section 5a are different. The input section 5a is higher than the filter plate 3.

[0030] Several input sections 5a are arranged in parallel, and an input main pipe 5c located outside the feeding channel 1 is also included. The ends of all input sections 5a are connected to the input main pipe 5c.

[0031] The free ends of the output section 5b are all connected to a horizontal tube 6. The inner wall of the free end of the horizontal tube 6 is provided with a receiving groove 7. The inner end of the receiving groove 7 is provided with a trumpet-shaped transition groove 8. The inner end of the transition groove 8 communicates with the inner cavity of the horizontal tube 6. The inner wall of the free end of the horizontal tube 6 is provided with a reset frame 9. The inner side of the reset frame 9 is provided with an elastic element 10 that is continuously in a compressed state. The inner end of the elastic element 10 is provided with a one-way ball 11. The diameter of the one-way ball 11 is smaller than the inner diameter of the receiving groove 7 and larger than the inner diameter of the horizontal tube 6.

[0032] This utility model provides a discharge unit for an extraction device. The entire extraction device includes a tank, a stirring motor located at the top of the tank, a stirring rod and stirring blades located inside the tank, a feeding port connected to the top of the tank, a discharge channel 1 connected to the bottom of the tank, and a discharge cover 2. The side of the tank also has a cylinder or hydraulic cylinder for driving the discharge cover 2 to rotate (the figure is for illustrative purposes only and does not represent the actual structure; furthermore, the tank, stirring motor, cylinder, etc., are not the objects of this application). During the extraction process, the filter plate 3 filters the filter residue, allowing the filtrate to pass through the filter plate 3 normally. After filtration, the valve on the drain pipe 4 is opened, and the filtrate is discharged directly through the drain pipe 4. After the filtrate is discharged, the discharge cover 2 rotates downwards, allowing the filter residue to slide down the filter plate 3 under gravity.

[0033] During the extraction process, an external air pump injects gas into the lower hood 2 through the air pipe 5 (preferably, the extraction process can be connected to an external source, so only air needs to be injected; if it cannot be connected, specially treated gas, such as inert gas, needs to be injected, and the top of the tank has a dedicated channel for venting the gas, preferably with the gas being recycled). This gas stirs the substances inside the tank, preventing filter residue from settling and increasing the total contact area between the filtrate and the filter residue, thus improving filtration efficiency. Simultaneously, the gas is more widely dispersed after being divided by the filter plate 3, further enhancing its effectiveness. The gas itself also accelerates the breakage of filter residue (e.g., leaf-shaped filter residue), and the lifted filter residue is better stirred and dispersed by the stirring blades, further improving extraction efficiency and effectiveness. Furthermore, the upward movement of the gas reduces the probability of the holes in the filter plate 3 becoming clogged, facilitating the subsequent dumping of filter residue. Simultaneously, during the filter cake dumping process, compressed pulsed air can be injected into the lower material hood 2 using the vent pipe 5, thereby blowing off the filter cake adhering to or stuck on the filter plate 3, resulting in better filter cake removal. A water pipe can also be connected to the side of the vent pipe 5, allowing high-pressure water to be injected into the lower material hood 2 to rinse and clean both the lower material hood 2 and the filter plate 3, further enhancing the cleaning effect.

[0034] During the extraction process, gas is introduced into the main inlet pipe 5c, then enters each inlet section 5a, and finally exits through the outlet sections 5b at different locations, thereby achieving the effect of stirring and extracting the material. At the same time, the gas from the outlet section 5b enters the horizontal pipe 6, which drives the one-way ball 11 to move into the receiving tank 7, allowing the gas to enter the discharge hood 2 normally.

[0035] When the filter cake is poured out, since each output part 5b is in close contact with the inner wall of the through-hole or has a very small gap (the gap between the two is smaller than the mesh diameter of the filter plate 3, and will not allow excessively large filter cake to enter the discharge hood 2), the output part 5b always remains through the filter plate 3 as the filter plate 3 rotates downward. At this time, the output part 5b can buffer the filter cake covering the filter plate 3, reduce the downward impact force of the filter cake, and slow down the falling speed of the filter cake. This not only protects the trolley below used to receive the filter cake, but also reduces the splashing range of filter cake and residual filtrate, resulting in better filter cake receiving effect.

[0036] Throughout the entire filter cake discharge process, the rotation angle of filter plate 3 is less than 90 degrees. This prevents filter plate 3 from separating from output section 5b, thus protecting both horizontal pipe 6 and the output end of output section 5b and preventing filter cake from entering. Finally, compressed air can be injected into the side of input main pipe 5c through pulse gas pipe. Ultimately, the compressed air is reflected by the inner wall of discharge hood 2 and blows filter plate 3 from bottom to top, resulting in better separation of filter cake.

[0037] If air injection is not required during the extraction process (e.g., intermittent injection), the one-way ball 11 can be made to contact the inner wall of the transition groove 8 under the action of the elastic element 10, and the horizontal tube 6 can be sealed. This can reduce the amount of extract and very small impurities entering the output section 5b.

[0038] Example 2

[0039] The difference from Example 1 is that, as Figure 7-9 As shown, a hinge seat 12 is vertically arranged at the top of the free end of the output section 5b. A hinge post 13 is horizontally arranged on both sides of the hinge seat 12. An L-shaped hinge arm 14 is hinged to each hinge post 13. A sealing plate 15 is arranged at the free end of the two hinge arms 14. A reset body 16 is also arranged at the top of the output section 5b. When the output section 5b is extracted, the outer side of the sealing plate 15 abuts against the first feeding section 2a, and the inner side covers the outlet end of the output section 5b. The free end of the reset body 16 abuts against the first feeding section 2a.

[0040] During extraction, the output section 5b does not provide gas; it only outputs compressed air when the filter residue is poured out. However, the buffering effect of the output section 5b during the pouring of the filter residue remains. Simultaneously, during extraction, the sealing plate 15 blocks the end of the output section 5b to prevent filtrate and filter residue from entering. Then, when compressed air passes through the end of the output section 5b, it can directly blow the sealing plate 15 upwards, releasing the compressed air. At this time, because the upper side of the sealing plate 15 is acted upon by the resetting body 16, after the blowing stops, the sealing plate 15 can return to its state of covering the output section 5b under its own gravity (since the hinge arm 14 is L-shaped, after the sealing plate 15 contacts the resetting body 16, the sealing plate 15 is not vertical but tilted, as shown). Figure 9 (As shown).

[0041] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0042] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A discharge unit of an extraction device, characterized in that, The device includes a discharge channel (1), the top of which is connected to a tank body, and a discharge cover (2) is hinged to one side of the bottom. The discharge cover (2) is an upward-opening cover. The inner wall of the top of the discharge cover (2) is provided with a porous filter plate (3), and the bottom is connected to a drain pipe (4) with a valve. The discharge cover (2) is also provided with a vent pipe (5), and the output end of the vent pipe (5) is located in the space formed by the filter plate (3) and the discharge cover (2).

2. The discharge unit of the extraction device according to claim 1, characterized in that, The cross-section of the feeding channel (1) is rectangular. The feeding cover (2) includes a plate-shaped first feeding part (2a) and an arc-shaped second feeding part (2b). The bottom of the first feeding part (2a) is connected to the bottom of the second feeding part (2b). A fan-shaped third feeding part (2c) is provided on both sides of the first feeding part (2a) and the second feeding part (2b). During extraction, the tops of the first feeding part (2a), the second feeding part (2b) and the third feeding part (2c) all abut against the bottom of the feeding channel (1). The vent pipe (5) includes an input section (5a) horizontally connected to the discharge channel (1) and an output section (5b) communicating with the input section (5a). The output section (5b) is arc-shaped. The filter plate (3) has a through-hole for the output section (5b) to pass through. The outer wall of the output section (5b) is in movable contact with the inner wall of the through-hole, or there is a set gap between the outer wall of the output section (5b) and the inner wall of the through-hole. When the filter residue is poured out, the end of the output section (5b) is located in the space formed by the filter plate (3) and the discharge cover (2).

3. The discharge unit of the extraction device according to claim 2, characterized in that, The input section (5a) is provided with a plurality of output sections (5b), and the lengths of all the output sections (5b) on the same input section (5a) are different. The input section (5a) is higher than the filter plate (3).

4. The discharge unit of the extraction device according to claim 3, characterized in that, The input section (5a) is arranged in parallel with several others, and also includes an input main pipe (5c) located outside the feeding channel (1). The ends of all the input sections (5a) are connected to the input main pipe (5c).

5. The discharge unit of an extraction apparatus according to any one of claims 2-4, characterized in that, The free ends of the output section (5b) are all connected to a horizontal tube (6). The inner wall of the free end of the horizontal tube (6) is provided with a receiving groove (7). The inner end of the receiving groove (7) is provided with a trumpet-shaped transition groove (8). The inner end of the transition groove (8) is connected to the inner cavity of the horizontal tube (6). The inner wall of the free end of the horizontal tube (6) is provided with a reset frame (9). The inner side of the reset frame (9) is provided with an elastic element (10) that is continuously in a compressed state. The inner end of the elastic element (10) is provided with a one-way ball (11). The diameter of the one-way ball (11) is smaller than the inner diameter of the receiving groove (7) and larger than the inner diameter of the horizontal tube (6).

6. The discharge unit of an extraction apparatus according to any one of claims 2-4, characterized in that, A hinge seat (12) is vertically arranged at the top of the free end of the output section (5b). A hinge post (13) is horizontally arranged on both sides of the hinge seat (12). An L-shaped hinge arm (14) is hinged on each hinge post (13). A sealing plate (15) is arranged at the free end of the two hinge arms (14). A reset body (16) is also arranged at the top of the output section (5b). When the output section (5b) is extracted, the outer side of the sealing plate (15) abuts against the first feeding section (2a), and the inner side covers the outlet end of the output section (5b). The free end of the reset body (16) abuts against the first feeding section (2a).

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