A centrifugal screening machine for hot pot base production

Abstract

The present invention provides a centrifugal screening machine for hot pot soup base production, which belongs to the technical field of hot pot soup base production; it includes a housing, a screening barrel rotatably arranged in the housing, a screening cylinder coaxially arranged in the screening barrel and dividing the screening barrel into a plurality of screening cavities, a discharge port arranged at the bottom end of each screening cavity, a discharge assembly arranged inside each discharge port, and a drive assembly for driving the screening barrel to rotate; the top of each screening cavity is provided with a top cover capable of vertical displacement, and an annular insert plate capable of vertical displacement is provided between adjacent top covers; each top cover is provided with a scraper capable of vertical displacement; when the scraper and the annular insert plate are moved down into the screening cavity, the scraper contacts the side wall of the screening cavity in which it is located. The present invention can fully screen the material collected in each screening cavity, and at the same time block the small volume portion of the cut material to prevent it from entering the adjacent outer screening cavity and mixing with normal material, thereby affecting the adequacy of the material screening.

Description

Technical Field

[0001] The invention relates to the technical field of hot pot soup base production, in particular to a centrifugal screening machine used for hot pot soup base production. Background Art

[0002] During the production of hot pot base, spices, seasonings, and various ingredients need to be stir-fried. Before stir-frying, the ingredients need to be processed, especially the spices. Spices come in many different types and sizes, and the size requirements for each spice vary during the hot pot base preparation process. Therefore, some larger spices, such as cinnamon, fennel, cloves, angelica, star anise, and bay leaves, need to be chopped or sheared. Because the particle size of the chopped spices is not uniform, screening is often required to ensure that the chopped spices are suitable for the production requirements of different hot pot bases.

[0003] Most of the centrifugal screening machines currently in use are single-stage screening machines, that is, only one layer of cylindrical screen is provided. In this way, after the screening is completed, the material remaining in the screen and the material passing through the screen are completely separated, ensuring that the collected materials are all fully screened materials. For multi-stage centrifugal screening machines, multiple layers of coaxial cylindrical screens are provided therein to form multiple screening cavities within the multi-stage centrifugal screening machine. However, after the screening is completed, the material originally located in the outer wall portion of a screening cavity will slide to the inner wall portion of the screening cavity under the action of gravity. In this way, the material can easily pass through the adjacent inner layer of screen from the inner wall portion, resulting in mixing of the materials in the adjacent screening cavities, and further resulting in the material collected in some screening cavities being incompletely screened material. Summary of the Invention

[0004] The object of the present invention is to provide a centrifugal screening machine for hot pot base production, which can effectively avoid mixing of materials in adjacent screening chambers and ensure that the materials collected in each screening chamber are fully screened materials.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A centrifugal screening machine for producing hot pot soup base, comprising a hollow cylindrical housing with openings at both the top and bottom ends, a screening barrel rotatably disposed within the housing, a screening drum coaxially disposed within the screening barrel and dividing the screening barrel into a plurality of screening cavities, a discharge port disposed at the bottom end of each screening cavity, a discharge assembly disposed within each discharge port, two support seats disposed below the housing, and a drive assembly for driving the screening barrel to rotate;

[0007] Each screening chamber is provided with a top cover at the top, an annular gap is provided between adjacent top covers, and an annular plug plate capable of vertical displacement is movably provided in the annular gap; a first hydraulic rod is provided at the top of each annular plug plate, and a hydraulic cylinder of each first hydraulic rod is provided on a U-shaped frame directly above the housing; a top wall of each top cover and a top wall of the U-shaped frame are connected via a second hydraulic rod;

[0008] Each of the top covers is provided with a notch, in which a scraper capable of vertical displacement is movably provided, and the center of the screening barrel is located on the vertical plane where each of the scrapers is located; a third hydraulic rod is provided between the top wall of each scraper and the top wall of the U-shaped frame;

[0009] When the scraper and the annular insert are moved down into the screening chamber, in the innermost screening chamber, the side wall of the screening chamber contacts one side of the scraper, the center of the screening chamber is located inside the scraper, and one side of the discharge port is arranged close to the side wall of the screening chamber, and the inner diameter of the discharge port is greater than or equal to the radius of the bottom wall of the screening chamber;

[0010] In each screening cavity except the innermost screening cavity, one side of the scraper contacts the side of the screening cavity away from the center of the screening barrel, and the other side contacts the outer wall of the annular insert; the discharge port is located between the side of the screening cavity away from the center of the screening barrel and the annular insert, and the inner diameter of the discharge port is equal to the distance between the scraper and the annular insert.

[0011] Preferably, a first annular groove is formed on the inner wall of each annular insert plate, and a second annular groove communicating with the first annular groove is provided below the first annular groove.

[0012] Preferably, except for the innermost screening chamber, the bottom walls of the remaining screening chambers are all provided with a third annular groove protruding downward, and the third annular groove is located directly below the annular insert in the screening chamber. A first annular blocking plate is slidably arranged in the third annular groove, and a telescopic component is provided between the first annular blocking plate and the bottom wall of the third annular groove to enable the first annular blocking plate to move up and down; the top surface of the first annular blocking plate can be flush with the bottom surface of the screening chamber; after the annular insert is completely moved down into the third annular groove, the top end of the second annular groove is not higher than the inner bottom surface of the screening chamber where it is located.

[0013] Preferably, the telescopic assembly includes a plurality of springs arranged between the third annular groove and the first annular blocking plate.

[0014] Preferably, when the telescopic assembly is in use, the first pressing down limits the first annular blocking plate, and the second pressing down releases the limit on the first annular blocking plate.

[0015] Preferably, the inner bottom surface heights of the multiple screening cavities gradually become lower from the inside to the outside; in the screening cavity provided with the third annular groove, an annular material guide plate is provided on the side of the screening cavity close to the center of the screening barrel, and the top end of the material guide plate is at the same height as the inner bottom surface of the adjacent inner screening cavity, and the bottom end of the material guide plate is at the same height as the inner bottom surface of the screening cavity where it is located.

[0016] Preferably, an annular discharge trough is provided at the bottom end of the annular insert plate, and a second annular blocking plate is detachably provided in the annular discharge trough.

[0017] Preferably, each scraper side wall is provided with a triangular prism-shaped cutter, and the cutter is in contact with the side of the screening cavity away from the center of the screening barrel.

[0018] Preferably, the driving assembly includes a support plate arranged on the two support seats, a motor arranged at the top of the support plate, and a U-shaped plate arranged at the output end of the motor, and the top of the U-shaped plate is fixedly connected to the screening barrel.

[0019] Preferably, the discharging assembly includes a connecting ring movably arranged in the discharging port, a sealing plate movably arranged in the connecting ring, and a flexible sleeve sleeved on the outer wall of the connecting ring, the top end of the flexible sleeve is fixedly connected to the bottom wall of the screening barrel, the bottom end of the flexible sleeve is fixedly connected to the outer wall of the connecting ring, and the opening diameter of the top end of the flexible sleeve is larger than the opening diameter of the bottom end;

[0020] A limiting plate is provided below the discharge port to support the bottom end of the discharge assembly, first sliders are provided on both sides of the limiting plate, and first horizontal slide grooves are provided on both sides of the U-shaped plate to slide with the first slider; the horizontal slider and the U-shaped plate are connected by bolts;

[0021] A collection box is detachably provided at the top of the U-shaped plate. A plurality of partitions are provided in the collection box, which divides the collection box into a plurality of collection chambers. The number of the collection chambers is the same as the number of the discharge ports. A circular hole is provided at the top of each collection chamber.

[0022] Compared with the prior art, the present invention has the following effects:

[0023] By arranging a top cover in contact with the shell or the top of the screening drum at the top of each screening cavity, an annular gap is formed between adjacent top covers, and an annular plug plate capable of vertical displacement is movably arranged in the annular gap. The top of each screening cavity can be blocked by multiple top covers and multiple annular plug plates to prevent material from leaking along the top of the screening cavity during screening. When the screening operation is about to end (because the centrifugal operation is still in progress at this time, under the action of centrifugal force, the material tends to accumulate in the area on the side of the screening chamber away from the center of the screening barrel, while there is almost no material in the area on the side of the screening chamber close to the center of the screening barrel), the first hydraulic rod drives the annular insert plate to move down along the annular gap (the annular gap is closer to the side of the screening chamber close to the center of the screening barrel) to the screening chamber directly below it, and then stops centrifugation. Due to material collapse, part of the material will slide to the area on the side of the screening chamber close to the center of the screening barrel. Because it is blocked by the annular insert plate in the screening chamber, the material will not cross the annular insert plate and enter the adjacent inner screening chamber, ensuring that the materials in the adjacent screening chambers will not be mixed with each other again after the screening is completed, and ensuring that the materials collected in each screening chamber are fully screened materials.

[0024] By setting a notch on each top cover, movably setting a scraper capable of vertical displacement in the notch, setting a discharge port at the bottom of each screening cavity, and setting a discharge assembly in each discharge port, the scraper can be moved down to the screening cavity directly below it after the screening is completed. After moving down, the scraper contacts the side of each screening cavity away from the center of the screening barrel, and then the screening barrel is rotated, thereby causing the material in each screening cavity to rotate centrifugally. During the rotation, the material is quickly scraped by the scraper to the corresponding discharge port, and then taken out through the discharge assembly.

[0025] In the discharging process, in addition to improving the discharging efficiency, the scraper can also break the material stuck on the side wall of the screening chamber through the force between the clamping plate and the screening chamber during the high-speed rotation of the inner wall of the screening chamber. The large volume part of the broken material falls directly into the screening chamber, while the small volume part (the particle size of the small volume part is uncertain, it may just match the particle size of the material in the adjacent outer screening chamber, or it may match the particle size of the material in the outer screening chamber, but in actual implementation, the material stuck on the screening cylinder is not just one or two. When the number is large, the particle size of the small volume part is not consistent with the particle size of the adjacent outer screening chamber. The material in the screening chamber is almost difficult to adapt, so it cannot be mixed with the material in the adjacent outer screening chamber) and is easy to fall into the adjacent outer screening chamber under the action of centrifugal force. Because the adjacent outer screening chamber is provided with an annular insert plate, the small volume portion that falls can be separated from the material being discharged in the adjacent outer screening chamber, avoiding these small volume portions that do not match the particle size of the material in the adjacent outer screening chamber from being directly mixed with the normal material in the adjacent outer screening chamber and discharged together, resulting in the normal material being mixed with materials of other particle sizes, and then resulting in insufficient screening of the collected material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic cross-sectional view of the structure of Example 1 in the front view direction;

[0027] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the front view direction after the middle annular insert and scraper are inserted into the screening chamber;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the middle top cover when viewed from above;

[0029] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle screening barrel when viewed from above;

[0030] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of A;

[0031] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure in the front view direction after the middle discharge component is completely pulled out from the discharge port;

[0032] Figure 7 for Figure 1 Schematic diagram of the structure of the collection box in the top view;

[0033] Figure 8 A schematic diagram of a cross-sectional structure in a front view direction after the annular insert is provided with a first annular groove and a second annular groove;

[0034] Figure 9 for Figure 8 A schematic diagram of a cross-sectional structure in the front view direction after the third annular groove is provided;

[0035] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure in the front view direction after the guide plate is set;

[0036] Figure 11 for Figure 10 Schematic diagram of the enlarged structure of B;

[0037] Figure 12 This is a schematic structural diagram of the second annular blocking plate when viewed from the front;

[0038] In the figure: 1-shell, 2-screening barrel, 40-screening chamber, 3-screening cylinder, 4-discharge port, 5-support seat, 6-top cover, 7-annular plug plate, 8-first hydraulic rod, 9-U-shaped frame, 10-second hydraulic rod, 11-notch, 12-scraper, 13-third hydraulic rod, 14-first annular groove, 15-second annular groove, 16-third annular groove, 17-first annular blocking plate, 18-spring, 19-guide plate, 20-cutter, 21-support plate, 22-motor, 23-U-shaped plate, 24-connecting ring, 25-sealing plate, 26-flexible sleeve, 27-limiting plate, 28-first slider, 29-first horizontal slide, 30-collection box, 31-partition, 32-second annular blocking plate. DETAILED DESCRIPTION

[0039] Below in conjunction with the appended Figures 1-11 , the technical solutions in the embodiments of the present invention are clearly and completely described, but the protection scope of the present invention is not limited to the following.

[0040] Example 1

[0041] A centrifugal screening machine for hot pot base production, such as Figures 1-4 As shown, it includes a hollow cylindrical shell 1 with openings at both the top and bottom ends, a cylindrical screening barrel 2 rotatably arranged in the shell 1 (a bearing or a rotating connection component with a similar bearing function is provided between the screening barrel 2 and the shell 1 to limit the screening barrel 2 to the shell 1 and ensure that the screening barrel 2 rotates smoothly in the shell 1. The rotating connection components are all made of existing technology and are not drawn in detail in the figure), a screening cylinder 3 coaxially arranged in the screening barrel 2 and dividing the screening barrel 2 into a plurality of screening cavities 40, and a discharge port 4 (such as Figure 1 、 Figure 2 and Figure 4 As shown, in this embodiment, one discharge port 4 is provided in the innermost screening cavity 40, and two are provided in the rest), and a discharge assembly ( Figure 1-2 The two support seats 5 are arranged below the housing 1, and a driving assembly for driving the screening barrel 2 to rotate. The side walls and bottom walls of the screening barrel 2 are not provided with sieve holes, and the multi-layer screening barrel 3

[0042] In the process, the sieve aperture gradually decreases from the inner layer to the outer layer.

[0043] like Figure 1-Figure 3As shown, a top cover 6 is provided at the top of each screening chamber 40, and an annular gap is provided between adjacent top covers 6, and an annular plug plate 7 capable of vertical displacement is movably provided in the annular gap; a first hydraulic rod 8 is provided at the top of each annular plug plate 7, and the hydraulic cylinder of each first hydraulic rod 8 is provided on a U-shaped frame 9 directly above the shell 1; the top wall of each top cover 6 and the top wall of the U-shaped frame 9 are connected by a second hydraulic rod 10; the top wall of the screening barrel 2 and the top cover 6 above it, and the top of the screening drum 3 and the top cover 6 directly above it are all slidingly connected, that is, during screening, the top cover 6 remains stationary, and the screening barrel 2 and the screening barrel 2 rotate at the bottom.

[0044] like Figure 1-Figure 3 As shown, each of the top covers 6 is provided with a notch 11, in which a scraper 12 capable of vertical displacement is movably provided. The center of the screening barrel 2 is located on the vertical plane where each of the scrapers 12 is located; a third hydraulic rod 13 is provided between the top wall of each scraper 12 and the top wall of the U-shaped frame 9;

[0045] Specifically, such as Figure 4 As shown, after the scraper 12 and the annular insert 7 move down into the screening chamber 40, in the innermost screening chamber 40, the side wall of the screening chamber 40 contacts one side of the scraper 12, the center of the screening chamber 40 is located within the scraper 12, and one side of the discharge port 4 is positioned closely against the side wall of the screening chamber 40. The inner diameter of the discharge port 4 is greater than or equal to the radius of the bottom wall of the screening chamber 40. In each screening chamber 40 except the innermost screening chamber 40, one side of the scraper 12 contacts the side of the screening chamber 40 away from the center of the screening barrel 2, and the other side contacts the outer wall of the annular insert 7. The discharge port 4 is located between the side of the screening chamber 40 away from the center of the screening barrel 2 and the annular insert 7, and the inner diameter of the discharge port 4 is equal to the distance between the scraper 12 and the annular insert 7.

[0046] Further, such as Figure 1 and Figure 2 As shown, the driving assembly includes a support plate 21 arranged on the two support seats 5, a motor 22 arranged at the top of the support plate 21, and a U-shaped plate 23 arranged at the output end of the motor 22, and the top of the U-shaped plate 23 is fixedly connected to the screening barrel 2.

[0047] Further, such as Figure 1 、 Figure 2 、 Figure 6As shown, the discharging assembly includes a connecting ring 24 movably arranged in the discharging port 4, a sealing plate 25 movably arranged in the connecting ring 24, and a flexible sleeve 26 (generally a material with less elasticity or almost no elasticity, such as silk material) sleeved on the outer wall of the connecting ring 24. The top of the flexible sleeve 26 is fixedly connected to the bottom wall of the screening barrel 2, and the bottom end of the flexible sleeve 26 is fixedly connected to the outer wall of the connecting ring 24. The opening diameter of the top end of the flexible sleeve 26 is larger than the opening diameter of the bottom end. The structure of the discharging assembly after vertical expansion is as shown. Figure 6 When the blocking plate 25 and the connecting ring 24 are located at the discharge port 4, their top surfaces are flush with the top surface of the screening chamber 40 in which they are located.

[0048] like Figure 1-Figure 2 As shown, a limit plate 27 is provided below the discharge port 4 to support the bottom end of the discharge assembly. Figure 5 As shown, first sliders 28 are provided on both sides of the limit plate 27, and first horizontal slide grooves 29 are provided on both sides of the U-shaped plate 23 to slide with the first sliders 28; the horizontal sliders and the U-shaped plate 23 are connected by bolts;

[0049] like Figure 1 、 Figure 2 and Figure 7 As shown, a collecting box 30 is detachably provided at the top of the U-shaped plate 23, and a plurality of partitions 31 are provided in the collecting box 30. The plurality of partitions 31 divide the collecting box 30 into a plurality of collecting chambers. The number of the collecting chambers is the same as the number of the discharge ports 4, and a circular hole is provided at the top of each collecting chamber.

[0050] In actual implementation, in order to complete the daily maintenance of the screening barrel 2 and the screening drum, it is necessary to make the annular insert 7 as far away as possible in the vertical direction, or as far away as possible in the horizontal direction (to avoid obstruction to the maintenance personnel), such as by setting the U-shaped frame 9 higher (i.e., at Figure 1 On the basis of setting the U-shaped frame 9 higher), at this time, the two legs of the U-shaped frame 9 are connected to the two support seats 5, and can also be set as Figure 1-3 The structure (selected in this embodiment) is as follows: a second slider is provided at the bottom end of the U-shaped frame 9, and a second horizontal chute slidably engaged with the second slider is provided on both sides of the two support seats 5. When the annular insert plate 7 needs to be removed, the U-shaped frame 9 can be moved along the direction of the second horizontal chute to achieve the purpose of moving away from the screening barrel 2. When in use, the U-shaped frame 9 is directly pushed toward the housing 1. When it moves to the end of the second horizontal chute, the U-shaped frame 9 is directly above the screening barrel 2. Thereafter, the second horizontal slider is restrained within the second horizontal chute by a conventional limiting assembly such as a bolt.

[0051] Working principle: The material to be screened is placed in the innermost screening chamber 40, and then the first hydraulic rod 8 is activated to move the multiple top covers 6 downwards. During the downward movement, they are slidably connected with the side walls of the scraper 12, as shown in FIG. Figure 1 As shown, when the first hydraulic rod 8 is fully extended, the bottom surface of the top cover 6 just contacts the top of the screening barrel 2 or the screening drum 3, and the annular insert 7 is just located in the annular gap formed by the adjacent top cover 6. In actual implementation, Figure 1 The bottom ends of the scraper 12 and the annular insert 7 are positioned between the top surface of the screening barrel 2 and the top surface of the top cover 6. Thus, through the coordinated action of the top cover 6, the scraper 12, and the annular insert 7, the top of each screening chamber 40 can be blocked, preventing the material from leaking or spreading outward along the top of the screening chamber 40 during subsequent screening. Subsequently, the motor 22 is turned on, and under the action of the motor 22, the U-shaped plate 23 drives the screening barrel 2 and the components on the U-shaped plate 23 to rotate, thereby achieving the purpose of multi-stage screening of the material in the screening barrel 2.

[0052] When the screening is almost finished, the second hydraulic rod 10 is started to move the annular insert plate 7 downward along the annular gap. During the downward movement, it is slidably connected with the inner and outer top covers 6. When it moves down to the bottom of the screening chamber 40 directly below it, the motor 22 is turned off.

[0053] The third hydraulic rod 13 is then activated, causing the scraper 12 to slide along the notch 11 into the screening chamber 40 directly below it. The bolts securing the limit plate 27 are then removed, and the limit plate 27 is dragged along the first horizontal chute 29 to slide out. After sliding out, the connecting ring 24 is pulled downward, causing the blocking plate 25 and the connecting ring 24 to slide out of the discharge port 4 together. The blocking plate 25 within each connecting ring 24 (sliding connection between the blocking plate 25 and the connecting ring 24) is then removed, and the connecting ring 24 is threadedly connected to the circular hole directly below it (in this embodiment, the lower outer wall of the blocking plate 25 is provided with threads that match the inner wall of the circular hole; the threads are not shown in the figure). Then the motor 22 is started. Under the action of the motor 22, the screening barrel 2 and the screening drum 3 rotate synchronously. At this time, the scraper 12, the annular insert 7 and the top cover 6 are kept different. The side of the scraper 12 away from the center of the screening barrel 2 contacts the side of the screening chamber 40 close to the center of the screening barrel 2. The bottom wall of the scraper 12 contacts the bottom wall of the screening chamber 40, which can quickly scrape the material in the screening chamber 40 to the discharge port 4 in the screening chamber 40. The scraper 12 has high-speed friction with the inner wall of the screening chamber 40, which can cut off the material stuck on the side wall of the screening chamber 40. In order to improve the material cutting efficiency, Figure 4 As shown, each side wall of the scraper 12 is provided with a triangular prism-shaped cutter 20, and the cutter 20 contacts the side of the screening chamber 40 away from the center of the screening barrel 2. By providing the cutter 20, the efficiency of cutting the material stuck in the side wall of the screening chamber 40 can be further improved.

[0054] In practice, the scraper 12 rubs against the inner wall of the screening chamber 40, potentially scratching the sidewalls of the screening chamber 40 and affecting its performance and lifespan. Therefore, in practice, the scraper 12 should preferably be made of materials other than metal. Instead, materials such as ox horn, wood (such as oak, walnut, or catalpa), hard plastic, and ox bone can be used. These materials are relatively hard (capable of cutting or blocking spices) and effectively prevent scratches on the sidewalls of the screening chamber 40. Similarly, the top cover 6, cutter 20, and annular insert 7 can also be made of the same material as the scraper 12.

[0055] After the material stuck in the side wall of the screening chamber 40 is cut off or broken, the large volume part of the broken material falls directly into the screening chamber 40, while the small volume part easily falls into the adjacent outer screening chamber 40 under the action of centrifugal force, and falls to the inner side of the annular insert plate 7 after being blocked by the annular insert plate 7 in the adjacent outer screening chamber 40.

[0056] When all materials in each screening chamber 40 are collected, turn off the motor 22, release the limit between the connecting ring 24 and the circular hole, and then, limit the collection box 30 and the U-shaped plate 23 (such as by bolt connection), and move the collection box 30 out of the U-shaped plate 23.

[0057] Thereafter, the discharge connection assembly is compressed to its original position (in which the flexible sleeve is almost located outside the discharge port 4 ) to carry out the next batch of material screening operations.

[0058] This embodiment can separate the materials in adjacent screening chambers 40 to the greatest extent possible during the entire process of centrifugal screening and centrifugal discharge, ensuring that the materials collected in each screening chamber 40 are fully screened. At the same time, it can block the small volume portion of the cut material to prevent it from entering the adjacent outer screening chamber 40 and mixing with the normal material in the screening chamber 40, resulting in the normal material in the screening chamber 40 being mixed with materials of other particle sizes, and thus resulting in the collected material being insufficiently screened.

[0059] Example 2

[0060] On the basis of Example 1, the small volume portion that enters the adjacent outer screening cavity 40 in Example 1 remains inside the annular insert 7 in the adjacent outer screening cavity 40 and is not taken out from the screening barrel 2. Based on this, Figure 8 As shown, the inner wall of each annular insert 7 is provided with a first annular groove 14, and a second annular groove 15 is provided below the first annular groove 14 and is connected to the first annular groove 14. Furthermore, the bottom end of the annular insert 7 is provided with an annular discharge trough, and a second annular blocking plate 32 (as shown in FIG. 1 ) is detachably provided in the annular discharge trough (not shown in FIG. 1 ). Figure 12 As shown, the insertion portion of the second annular blocking plate 32 can be made of rubber or silicone material so that it has an interference fit with the annular discharge chute).

[0061] In this embodiment, by providing the first annular groove 14 and the second annular groove 15, the small volume portion can pass through the side wall of the screening chamber 40 through centrifugal force and enter the second annular groove 15 along the first annular groove 14, thereby achieving the purpose of transferring it to the annular insert plate 7. Thereafter, the annular insert plate 7 is moved out of the screening barrel 2, and then the second annular blocking plate 32 is opened to take out the small volume portion.

[0062] Example 3

[0063] In Example 2, the top of the second annular groove 15 is at a certain distance from the bottom of the screening barrel 2. After some small-volume parts hit the first annular groove 14 under the action of centrifugal force, they may fall to the outside of the second annular groove 15 after being rebounded. At the same time, some small-volume parts will directly hit the second annular groove 15 under the action of centrifugal force and will also fall to the outside of the second annular groove 15, thereby resulting in incomplete collection of small-volume materials.

[0064] Based on this, on the basis of Example 2, as Figure 9 As shown, except for the innermost screening chamber 40, the bottom walls of the other screening chambers 40 are all provided with a downwardly protruding third annular groove 16, and the third annular groove 16 is located directly below the annular insert plate 7 in the screening chamber 40. A first annular blocking plate 17 is slidingly arranged in the third annular groove 16, and a telescopic component is provided between the first annular blocking plate 17 and the bottom wall of the third annular groove 16 to enable the first annular blocking plate 17 to move up and down; the top surface of the first annular blocking plate 17 can be flush with the bottom surface of the screening chamber 40; after the annular insert plate 7 is completely moved down into the third annular groove 16, the top end of the second annular groove 15 is not higher than the inner bottom surface of the screening chamber 40 where it is located.

[0065] Among them, Figure 9 As shown, the telescopic assembly includes a plurality of springs 18 arranged between the third annular groove 16 and the first annular blocking plate 17 .

[0066] During the screening operation, the annular insert plate 7 is not inserted into the screening chamber 40. At this time, the spring 18 is in a free expansion and contraction state. At this time, the top surface of the first annular plugging plate 17 is flush with the inner bottom surface of the screening chamber 40 where it is located. When the annular insert plate 7 is inserted, the annular insert plate 7 presses the first annular plugging plate 17. During the pressing process, all the springs 18 contract synchronously to make the first annular plugging plate 17 slide down in the third annular groove 16 until it slides down to the top of the second annular groove 15 and is not higher than the inner bottom surface of the screening chamber 40 where it is located. Figure 9When the material is centrifuged and discharged, the small volume portion entering the annular insert plate 7 will fall into the second annular groove 15 to the greatest extent under the action of centrifugal force, thereby improving the collection rate.

[0067] It is worth noting that the setting of the third annular groove 16 will cause the distance between the limit plate 27 and the bottom surface of the screening barrel 2 to increase. If it is necessary to make the limit plate 27 continue to limit the discharge assembly, the lower part of the connecting ring 24 and the sealing plate 25 will be set longer to ensure that their bottoms can contact the limit plate 27.

[0068] However, in this embodiment, the spring 18 is in a compressed state, and its elastic force on the first annular baffle 17 is relatively large, resulting in that during the centrifugal discharging process, when the first annular baffle 17 rotates, the friction between the first annular baffle 17 and the annular insert plate 7 is extremely large, seriously affecting the performance of both.

[0069] Based on this, the telescopic assembly can be replaced with a press-type telescopic assembly of the prior art. When the press-type telescopic assembly is in use, the first press down limits the first annular blocking plate 17, and the second press down releases the limit on the first annular blocking plate 17. That is, the first press of the first annular blocking plate 17 can move the first annular blocking plate 17 downward and limit it, and the second press of the first annular blocking plate 17 can release the limit and move the first annular blocking plate 17 upward to its original position. For details, you can refer to the pressing structure of a ballpoint pen, or refer to the press-type telescopic assembly in the patent number CN202011324646.7 (the telescopic assembly is a prior art, and it does not need to overcome technical defects when it is used in the present invention. Based on this, the present invention does not elaborate on its structure and principle). In specific implementation, the above-mentioned press-type telescopic assembly is installed in the third annular groove 16, the panel is equivalent to the first annular blocking plate 17 of the present invention, and the movable base is installed on the inner bottom surface of the third annular groove 16.

[0070] In this way, when centrifugal discharging is performed, the first annular blocking plate 17 is pressed down to a certain height for limiting the position, and then the annular insert plate 7 is moved up a certain distance to maintain a certain gap between the annular insert plate 7 and the first annular blocking plate 17 (at this time, it is still necessary to ensure that the top of the second annular groove 15 is not higher than the inner bottom surface of the screening chamber 40 where it is located). As a result, when the first annular blocking plate 17 rotates, there will be no friction between the annular insert plate 7 and the first annular blocking plate 17, thereby effectively improving the service life of both.

[0071] Example 4

[0072] like Figure 9As shown, in order to reduce the friction between the annular insert plate 7 and the inner wall of the third annular groove 16, it is necessary to form a certain gap between the inner side of the annular insert plate 7 and the inner wall of the third annular groove 16 in actual implementation, and the outer side of the annular insert plate 7 needs to be in contact with the side of the third annular groove 16 away from the center of the screening barrel 2. This can effectively avoid the existence of a gap between the two. When there is a gap, normal materials are likely to fall into the gap during the discharging process.

[0073] However, due to the gap between the inner side of the annular insert 7 and the inner wall of the third annular groove 16, some of the small-volume parts may fall into the gap, resulting in incomplete collection of the small-volume parts by the second annular groove 15. Based on this, on the basis of Example 3, as shown in FIG. Figure 10 and Figure 11 As shown, the inner bottom surface heights of the plurality of screening cavities 40 gradually become lower from the inside to the outside; in the screening cavity 40 provided with the third annular groove 16, an annular material guide plate 19 is provided on the side of the screening cavity 40 close to the center of the screening barrel 2, and the top end of the material guide plate 19 is at the same height as the inner bottom surface of the adjacent inner screening cavity 40, and the bottom end of the material guide plate 19 is at the same height as the inner bottom surface of the screening cavity 40 where it is located.

[0074] In this embodiment, the guide plate 19 can block the gap between the inner side of the annular insert plate 7 and the inner wall of the third annular groove 16, so that the small volume portion entering the interior of the annular insert plate 7 can completely enter the second annular groove 15 under the action of the guide plate 19 and centrifugal force, further improving the collection adequacy of the small volume portion.

[0075] In addition, when installing the guide plate 19, the inner bottom height of each screening chamber 40 must be adaptively adjusted to ensure that the installation of the guide plate 19 does not affect the normal passage of materials through the screening drum 3. If only the guide plate 19 is installed without adjusting the inner bottom height of the screening chamber 40, the guide plate 19 has a certain height, and the materials within this height will be blocked by the guide plate 19 in the adjacent inner screening chamber 40 during screening, making screening difficult and reducing screening efficiency.

Claims

1. A centrifugal screening machine for hot pot base production, characterized in that: It comprises a hollow cylindrical shell (1) with both the top and bottom ends being open, a screening barrel (2) rotatably arranged in the shell (1), a screening cylinder (3) coaxially arranged in the screening barrel (2) and dividing the screening barrel (2) into a plurality of screening cavities (40), a discharge port (4) arranged at the bottom end of each screening cavity (40), a discharge assembly arranged inside each discharge port (4), two support seats (5) arranged below the shell (1), and a drive assembly for driving the screening barrel (2) to rotate; A top cover (6) is provided at the top of each screening chamber (40), an annular gap is provided between adjacent top covers (6), and an annular insert plate (7) capable of vertical displacement is movably provided in the annular gap; a first hydraulic rod (8) is provided at the top of each annular insert plate (7), and a hydraulic cylinder of each first hydraulic rod (8) is provided on a U-shaped frame (9) directly above the housing (1); a top wall of each top cover (6) and a top wall of the U-shaped frame (9) are connected via a second hydraulic rod (10); Each of the top covers (6) is provided with a notch (11), a scraper (12) capable of vertical displacement is movably provided in the notch (11), and the center of the screening barrel (2) is located on the vertical plane where each of the scrapers (12) is located; a third hydraulic rod (13) is provided between the top wall of each scraper (12) and the top wall of the U-shaped frame (9); When the scraper (12) and the annular insert (7) move downward into the screening chamber (40), in the innermost screening chamber (40), the side wall of the screening chamber (40) contacts one side of the scraper (12), the center of the screening chamber (40) is located in the scraper (12), and one side of the discharge port (4) is arranged in close contact with the side wall of the screening chamber (40), and the inner diameter of the discharge port (4) is greater than or equal to the radius of the bottom wall of the screening chamber (40); In each of the screening cavities (40) except the innermost screening cavity (40), one side of the scraper (12) contacts the side of the screening cavity (40) away from the center of the screening barrel (2), and the other side contacts the outer wall of the annular insert (7); the discharge port (4) is located between the side of the screening cavity (40) away from the center of the screening barrel (2) and the annular insert (7), and the inner diameter of the discharge port (4) is equal to the distance between the scraper (12) and the annular insert (7); A first annular groove (14) is provided on the inner wall of each annular insert plate (7), and a second annular groove (15) communicating with the first annular groove (14) is provided below the first annular groove (14); An annular discharge trough is provided at the bottom end of the annular insert plate (7), and a second annular blocking plate (32) is detachably provided in the annular discharge trough; The discharge port (4) discharges the material, the scraper (12) cuts the blocked material, and the first annular groove (14) and the second annular groove (15) collect the cut material. The three operations are performed simultaneously; The scraper (12) is made of a material selected from ox horn, wood, or ox bone.

2. A centrifugal screening machine for hot pot base production according to claim 1, characterized in that: Except for the innermost screening chamber (40), the bottom walls of the other screening chambers (40) are all provided with a third annular groove (16) protruding downward, and the third annular groove (16) is located directly below the annular insert plate (7) in the screening chamber (40). A first annular blocking plate (17) is slidably provided in the third annular groove (16), and a telescopic component for moving the first annular blocking plate (17) up and down is provided between the first annular blocking plate (17) and the bottom wall of the third annular groove (16); the top surface of the first annular blocking plate (17) can be flush with the bottom surface of the screening chamber (40); after the annular insert plate (7) is completely moved down into the third annular groove (16), the top of the second annular groove (15) is not higher than the inner bottom surface of the screening chamber (40) in which it is located.

3. A centrifugal screening machine for hot pot base production according to claim 2, characterized in that: The telescopic assembly comprises a plurality of springs (18) arranged between the third annular groove (16) and the first annular blocking plate (17).

4. A centrifugal screening machine for hot pot base production according to claim 3, characterized in that: When the telescopic assembly is in use, the first pressing down limits the first annular blocking plate (17), and the second pressing down releases the limit on the first annular blocking plate (17).

5. A centrifugal screening machine for hot pot base production according to claim 3 or 4, characterized in that: The inner bottom heights of the plurality of screening cavities (40) gradually decrease from the inside to the outside; in the screening cavity (40) provided with the third annular groove (16), an annular guide plate (19) is provided on one side of the screening cavity (40) close to the center of the screening barrel (2), the top end of the guide plate (19) is at the same height as the inner bottom surface of the adjacent inner screening cavity (40), and the bottom end of the guide plate (19) is at the same height as the inner bottom surface of the screening cavity (40) where it is located.

6. A centrifugal screening machine for hot pot base production according to claim 1, characterized in that: A triangular prism-shaped cutter (20) is provided on the side wall of each scraper (12), and the cutter (20) contacts the side of the screening cavity (40) away from the center of the screening barrel (2).

7. A centrifugal screening machine for hot pot base production according to claim 1, characterized in that: The driving assembly comprises a support plate (21) arranged on the two support seats (5), a motor (22) arranged at the top end of the support plate (21), and a U-shaped plate (23) arranged at the output end of the motor (22), wherein the top end of the U-shaped plate (23) is fixedly connected to the screening barrel (2).

8. A centrifugal screening machine for hot pot soup base production according to claim 7, characterized in that: The discharge assembly comprises a connecting ring (24) movably arranged in the discharge port (4), a blocking plate (25) movably arranged in the connecting ring (24), and a flexible sleeve (26) sleeved on the outer wall of the connecting ring (24), the top end of the flexible sleeve (26) is fixedly connected to the bottom wall of the screening barrel (2), the bottom end of the flexible sleeve (26) is fixedly connected to the outer wall of the connecting ring (24), and the opening diameter of the top end of the flexible sleeve (26) is larger than the opening diameter of the bottom end; A limiting plate (27) is provided below the discharge port (4) to support the bottom end of the discharge assembly, first sliders (28) are provided on both sides of the limiting plate (27), and first horizontal sliding grooves (29) are provided on both sides of the U-shaped plate (23) to slide with the first sliders (28); the first slider and the U-shaped plate (23) are connected by bolts; A collection box (30) is detachably provided at the top end of the U-shaped plate (23), and a plurality of partitions (31) are provided in the collection box (30). The plurality of partitions (31) divide the collection box (30) into a plurality of collection chambers. The number of the collection chambers is the same as the number of the discharge ports (4), and a circular hole is provided at the top end of each collection chamber.

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