Centrifugal screening machine for hotpot condiment production

Abstract

The invention provides a centrifugal screening machine for hotpot condiment production, and belongs to the technical field of hotpot condiment production. Comprising a shell, a screening barrel rotationally arranged in the shell, a screening barrel which is coaxially arranged in the screening barrel and divides the screening barrel into a plurality of screening cavities, discharging openings formed in the bottom ends of the screening cavities, discharging assemblies arranged in the discharging openings and a driving assembly used for driving the screening barrel to rotate. A top cover capable of vertically displacing is arranged at the top end of each screening cavity, and an annular inserting plate capable of vertically displacing is arranged between every two adjacent top covers; each top cover is provided with a scraping plate capable of vertically displacing; and after the scraping plates and the annular inserting plates move downwards into the screening cavities, the scraping plates make contact with the side walls of the screening cavities where the scraping plates are located. Materials collected in each screening cavity can be fully screened, meanwhile, the small-size parts of the cut materials are blocked, and the situation that the materials enter the screening cavity on the adjacent outer side to be mixed with normal materials, and then the screening sufficiency of the materials is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hot pot base production, and particularly to a centrifugal screening machine for hot pot base production. Background Art

[0002] During the production process of hot pot base, raw materials such as spices, seasonings, and various ingredients need to be stir-fried. Before stir-frying, the raw materials of the hot pot base need to be processed, especially spices. Since there are many types of spices and the sizes of different spices are not the same, and in the process of preparing hot pot base, different size requirements for different spices exist. Therefore, some special spices, such as cinnamon, fennel, cloves, angelica, star anise, bay leaves, etc., which are larger in volume, need to be crushed, such as chopped or shredded. Because the particle sizes of the crushed spices are not uniform, in order to make the crushed spices adapt to the production requirements of different hot pot bases, it is often necessary to screen the crushed spices.

[0003] Most of the currently used centrifugal screening machines are single-stage screening, that is, only one layer of cylindrical screen is provided. In this way, after screening, the materials remaining in the screen and the materials passing through the screen are completely separated, ensuring that the collected materials are all fully screened materials. For a multi-stage centrifugal screening machine, multiple layers of coaxial cylindrical screens are provided inside it to form multiple screening chambers in the multi-stage centrifugal screening machine. However, after screening, the materials originally located in the outer wall part of a certain screening chamber will slide down to the inner wall part of this screening chamber under the action of gravity. In this way, the materials are very likely to pass through the adjacent inner layer screen from the inner wall part, resulting in the mixing of materials in the adjacent screening chambers, and further resulting in the materials collected in some screening chambers being incompletely screened materials. Summary of the Invention

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

[0005] The purpose of the present invention is achieved by the following technical solutions: A centrifugal screening machine for hot pot base production includes a hollow columnar shell with openings at both the top and bottom, a screening barrel rotatably arranged inside the shell, a screening cylinder coaxially arranged inside the screening barrel and dividing the screening barrel into multiple screening chambers, a discharge port arranged at the bottom of each screening chamber, a discharge assembly arranged inside each discharge port, two support seats arranged below the shell, and a driving assembly for driving the screening barrel to rotate; A top cover is provided at the top of each screening chamber, 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; 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; When the scraper and the annular insert plate move 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 in 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 ≥ the radius of the bottom wall of the screening chamber; In each screening cavity except the innermost screening cavity, one side of the scraper is in contact with the side of the screening cavity away from the center of the screening barrel, and the other side is in contact with the outer wall of the annular plug plate; the discharge port is located between the side of the screening cavity away from the center of the screening barrel and the annular plug plate, and the inner diameter of the discharge port is equal to the distance between the scraper and the annular plug plate.

[0006] 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.

[0007] 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 plate in the screening chamber; a first annular blocking plate is slidably arranged in the third annular groove, and a telescopic component for moving the first annular blocking plate up and down is arranged between the first annular blocking plate and the bottom wall of the third annular groove; the top surface of the first annular blocking plate can be flush with the bottom surface of the screening chamber; after the annular insert plate 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.

[0008] Preferably, the telescopic assembly includes a plurality of springs arranged between the third annular groove and the annular blocking plate.

[0009] 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 limiting of the first annular blocking plate.

[0010] Preferably, the inner bottom surface heights of the multiple screening chambers gradually become lower from the inside to the outside; in the screening chamber provided with the third annular groove, an annular material guide plate is provided on the side of the screening chamber close to the center of the screening barrel, the top end of the material guide plate is at the same height as the inner bottom surface height of the adjacent inner screening chamber, and the bottom end of the material guide plate is at the same height as the inner bottom surface height of the screening chamber where it is located.

[0011] 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.

[0012] Preferably, each scraper side wall is provided with a triangular prism-shaped cutter, and the cutter is in contact with a side of the screening cavity away from the center of the screening barrel.

[0013] Preferably, the driving assembly includes a support plate arranged on the two support seats, a motor arranged on 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.

[0014] Preferably, the discharge assembly comprises a connecting ring movably arranged in the discharge port, a blocking 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; A limit plate for supporting the bottom end of the discharge assembly is provided below the discharge port, first sliders are provided on both sides of the limit plate, and first horizontal slide grooves for slidingly cooperating with the first sliders are provided on both sides of the U-shaped plate; the horizontal slider and the U-shaped plate are connected by bolts; A collection box is detachably provided at the top of the U-shaped plate. A plurality of partitions are provided in the collection box. The plurality of partitions divide 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.

[0015] Compared with the prior art, the present invention has the following effects: By arranging a top cover in contact with the shell or the top of the screening cylinder at the top of each screening chamber, 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 chamber can be blocked by multiple top covers and multiple annular plug plates to prevent material from leaking along the top of the screening chamber 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 plug 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 the centrifugation is stopped. Due to the collapse of the material, 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 plug plate in the screening chamber, the material will not cross the annular plug plate to 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, ensuring that the materials collected in each screening chamber are fully screened materials.

[0016] 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 chamber, and setting a discharge assembly in each discharge port, the scraper can be moved down to the screening chamber directly below it after the screening is completed. After moving down, the scraper contacts the side of each screening chamber away from the center of the screening barrel, and then the screening barrel is rotated, thereby causing the material in each screening chamber 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.

[0017] In the process of discharging, 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, there are not only one or two materials stuck on the screening cylinder. When the number is large, the particle size of the small volume part is close to that 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) will easily fall into the adjacent outer screening chamber under the action of centrifugal force. Because the adjacent outer screening chamber is provided with an annular plug plate, the fallen small volume part can be separated from the material being discharged in the adjacent outer screening chamber, avoiding these small volume parts 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, which in turn leads to insufficient screening of the collected material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of Example 1 in the front view direction; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure in the front view direction after the middle annular insert plate and the scraper plate are inserted into the screening chamber; Figure 3 for Figure 1 A schematic diagram of the structure of the middle top cover when viewed from above; Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle screening barrel in the top view direction; Figure 5 for Figure 1 A is a schematic diagram of the enlarged structure of the middle part; Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure in the front view direction after the middle discharge assembly is completely pulled out from the discharge port; Figure 7 for Figure 1 A schematic diagram of the structure of the collection box in the top view; Figure 8 A schematic diagram of a cross-sectional structure in a front view direction after the annular insert plate is provided with a first annular groove and a second annular groove; Fig. 9 for Figure 8 A schematic diagram of a cross-sectional structure in a front view direction after a third annular groove is provided in the middle; Fig.10 for Fig. 9 A schematic diagram of the cross-sectional structure in the front view direction after the guide plate is set; Fig.11 for Fig.10 Schematic diagram of the enlarged structure of B; Fig.12 This is a schematic diagram of the structure of the second annular blocking plate in the front view direction; 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-annular plugging 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 groove, 30-collection box, 31-partition plate, 32-second annular plugging plate. DETAILED DESCRIPTION

[0019] In combination with the appended Figure 1-Figure 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.

[0020] Example 1 A centrifugal screening machine for hot pot base production, such as Figure 1-Figure 4 As shown, it includes a hollow cylindrical shell 1 with openings at both the top and the bottom, a cylindrical screening barrel 2 rotatably arranged in the shell 1 (a bearing or a rotating connection component with a similar bearing function is arranged 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 technologies 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 chamber 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 wall and the bottom wall of the screening barrel 2 are not provided with sieve holes, and the multi-layer screening barrel 3 In the process, the sieve hole diameter gradually decreases from the inner layer to the outer layer.

[0021] like Figure 1-Figure 3 As shown, 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 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 end 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.

[0022] 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, 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; Specifically, Figure 4As shown, when the scraper 12 and the annular plug plate 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 in the scraper 12, one side of the discharge port 4 is set close to the side wall of the screening chamber 40, and the inner diameter of the discharge port 4 is ≥ the radius of the bottom wall of the screening chamber 40. In each of the screening chambers 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 plug plate 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 plug plate 7, and the inner diameter of the discharge port 4 is equal to the distance between the scraper 12 and the annular plug plate 7.

[0023] 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.

[0024] Further, such as Figure 1 , Figure 2 , Figure 6 As 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 a silk material) 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, 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 in FIG. Figure 6 When the blocking plate 25 and the connecting ring 24 are located at the discharge port 4, the top surfaces of the two are flush with the top surface of the screening chamber 40 where they are located.

[0025] like Figure 1-Figure 2 As shown, a limiting 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 slidably matched with the first sliders 28 are provided on both sides of the U-shaped plate 23; the horizontal sliders and the U-shaped plate 23 are connected by bolts; like Figure 1 , Figure 2 and Figure 7As 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 inside 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 of the collecting chambers.

[0026] In actual implementation, in order to complete the daily maintenance of the screening barrel 2 and the screening cylinder, it is necessary to make the annular plug plate 7 as far away as possible in the vertical direction, or as far away as possible in the horizontal direction (to avoid blocking 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 it can also be set as follows Figure 1-3 The structure (this embodiment selects this method), that is, a second slider is arranged at the bottom end of the U-shaped frame 9, and second horizontal slide grooves that slide and cooperate with the second slider are arranged on both sides of the two support seats 5, respectively, so that when the annular plug plate 7 needs to be removed, the U-shaped frame 9 can be moved along the direction of the second horizontal slide groove to achieve the purpose of being away from the screening barrel 2. When in use, the U-shaped frame 9 is directly pushed to move toward the housing 1. When it moves to the end of the second horizontal slide groove, the U-shaped frame 9 is located directly above the screening barrel 2, and then the second horizontal slider is limited to the second horizontal slide groove by a limiting component in the prior art such as a bolt.

[0027] 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 downward, and during the downward movement, they are slidably connected with the side wall of the scraper 12, such as 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 cylinder 3, and the annular plug plate 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 located between the top surface of the screening barrel 2 and the top surface of the top cover 6, so that the top of each screening chamber 40 can be blocked through the coordinated action of the top cover 6, the scraper 12 and the annular insert 7, so as to prevent the material from leaking or spreading outward along the top of the screening chamber 40 during subsequent screening. Afterwards, 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.

[0028] When the screening is almost finished, the second hydraulic rod 10 is started to move the annular plug plate 7 downward along the annular gap, and is slidably connected with the inner and outer top covers 6 during the downward movement. When it moves down to the bottom of the screening chamber 40 directly below it, the motor 22 is turned off.

[0029] Then, the third hydraulic rod 13 is started to make the scraper 12 slide down along the notch 11 into the screening chamber 40 directly below it. Then, the bolts fixing the limit plate 27 are inserted, and the limit plate 27 is dragged to slide out along the first horizontal chute 29. After sliding out, the connecting ring 24 is pulled downward, and the blocking plate 25 and the connecting ring 24 slide out of the discharge port 4 together. Then, the blocking plate 25 in each connecting ring 24 (the blocking plate 25 and the connecting ring 24 are slidably connected) is 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 a thread matching the inner wall of the circular hole, and the thread is not drawn in the figure). Then the motor 22 is started, and the screening barrel 2 and the screening cylinder 3 are rotated synchronously under the action of the motor 22. At this time, the scraper 12, the annular plug plate 7 and the top cover 6 are kept different, and 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, and 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, and 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 cutting efficiency of the material stuck on the side wall of the screening chamber 40 can be further improved.

[0030] Among them, since the scraper 12 has friction with the inner wall of the screening chamber 40 during actual implementation, it is very likely to cause scratches on the side wall of the screening chamber 40, affecting the performance and life of the screening chamber 40. Based on this, in actual implementation, it is best not to choose metal materials for the scraper 12, but to choose horns, wooden materials (such as oak, walnut, catalpa, etc. with high hardness), hard plastics, cow bones, etc. These materials are relatively hard (can cut or block spices) and can effectively avoid scratches on the side wall of the screening chamber 40. Similarly, the top cover 6, the cutter 20, and the annular plug plate 7 can also be made of the same material as the scraper 12.

[0031] After the material stuck in the side wall of the screening chamber 40 is cut off or stuck, the large volume part of the stuck 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 plug plate 7 after being blocked by the annular plug plate 7 in the adjacent outer screening chamber 40.

[0032] 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.

[0033] Thereafter, the discharge connection assembly is compressed to the 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.

[0034] This embodiment can separate the materials in adjacent screening chambers 40 to the greatest extent during the entire process of centrifugal screening and centrifugal discharging, ensuring that the materials collected in each screening chamber 40 are fully screened materials. At the same time, the small volume portion of the cut-off material can be blocked 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, thereby resulting in the collected material being insufficiently screened material.

[0035] Example 2 On the basis of Example 1, the small volume portion that enters the adjacent outer screening chamber 40 in Example 1 remains inside the annular insert plate 7 in the adjacent outer screening chamber 40 and is not taken out from the screening barrel 2. Based on this, Figure 8 As shown, the inner wall of each annular plug plate 7 is provided with a first annular groove 14, and a second annular groove 15 is provided below the first annular groove 14 and communicated with the first annular groove 14. Furthermore, an annular discharge groove is provided at the bottom end of the annular plug plate 7, and a second annular plugging plate 32 (as shown in FIG. 1 ) is detachably provided in the annular discharge groove (not shown in FIG. 1 ). Fig.12 As shown, the insertion portion of the second annular blocking plate 32 may be made of rubber or silicone material so as to have an interference fit with the annular discharge chute).

[0036] 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 transferring it to the annular plug plate 7. Thereafter, the annular plug 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.

[0037] Example 3 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 portions 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 portions may directly hit the second annular groove 15 under the action of centrifugal force and may also fall to the outside of the second annular groove 15, thereby resulting in incomplete collection of materials in the small-volume portions.

[0038] Based on this, on the basis of Example 2, as Fig. 9As 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 plugging plate 17 is slidably arranged in the third annular groove 16, and a telescopic component for moving the first annular plugging plate 17 up and down is arranged between the first annular plugging plate 17 and the bottom wall of the third annular groove 16; the top surface of the first annular plugging 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.

[0039] Among them, Fig. 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 .

[0040] During the screening operation, the annular plug 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 plug plate 17 is flush with the inner bottom surface of the screening chamber 40 where it is located. When the annular plug plate 7 is inserted, the annular plug plate 7 presses the first annular plug plate 17. During the pressing process, all the springs 18 contract synchronously to make the first annular plug plate 17 slide down in the third annular groove 16 until it slides down to the top of the second annular groove 15 not higher than the inner bottom surface of the screening chamber 40 where it is located. Fig. 9 When the material is centrifugally 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.

[0041] 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 connecting ring 24 and the lower part of the sealing plate 25 will be set longer to ensure that their bottoms can contact the limit plate 27.

[0042] However, in this embodiment, the spring 18 is in a compressed state, and its elastic force on the first annular baffle plate 17 is relatively large, resulting in a large friction force between the first annular baffle plate 17 and the annular insert plate 7 when the annular baffle plate 17 rotates during the centrifugal discharging process, which seriously affects the performance of both.

[0043] Based on this, the telescopic assembly can be replaced with a push-type telescopic assembly of the prior art. When the push-type telescopic assembly is in use, the first downward pressing limits the first annular blocking plate 17, and the second downward pressing releases the limit on the first annular blocking plate 17, that is, the first pressing of the first annular blocking plate 17 can move the first annular blocking plate 17 downward and limit it, and the second pressing 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, please refer to the pressing structure of a ballpoint pen, or to the push-type telescopic assembly in the patent with patent number CN202011324646.7 (the telescopic assembly is a prior art, and it does not need to overcome technical defects when it is transferred to the present invention. Based on this, the present invention does not elaborate on its structure and principle). In specific implementation, the above-mentioned push-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.

[0044] In this way, when centrifuging, the first annular blocking plate 17 is pressed down to a certain height for limiting, 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 annular insert plate 7, thereby effectively improving the service life of both.

[0045] Example 4 like Fig. 9 As shown, in order to reduce the friction between the annular plug plate 7 and the inner wall of the third annular groove 16, in actual implementation, it is necessary to form a certain gap between the inner side of the annular plug plate 7 and the inner wall of the third annular groove 16, and the outer side of the annular plug 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, so that the existence of a gap between the two can be effectively avoided. When there is a gap, normal materials are easy to fall into the gap during the discharging process.

[0046] Since there is a certain gap between the inner side of the annular insert plate 7 and the inner wall of the third annular groove 16, part of the small volume portion may fall into the gap, resulting in incomplete collection of the small volume portion by the second annular groove 15. Based on this, on the basis of Example 3, as shown in FIG. Fig.10 and Fig.11 As shown, the inner bottom surface heights of the plurality of screening chambers 40 gradually decrease from the inside to the outside; in the screening chamber 40 provided with the third annular groove 16, an annular material guide plate 19 is provided on the side of the screening chamber 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 height of the adjacent inner screening chamber 40, and the bottom end of the material guide plate 19 is at the same height as the inner bottom surface height of the screening chamber 40 where it is located.

[0047] 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 annular insert plate 7 can completely enter the second annular groove 15 under the action of the guide plate 19 and the centrifugal force, thereby further improving the collection adequacy of the small volume portion.

[0048] In addition, when setting the guide plate 19, the inner bottom heights of different screening chambers 40 need to be adjusted adaptively to ensure that the setting of the guide plate 19 does not affect the normal passage of materials through the screening cylinder 3. If only the guide plate 19 is set without adjusting the inner bottom height of the screening chamber 40, the guide plate 19 has a certain height, and the materials within the height will be blocked by the guide plate 19 in the adjacent inner screening chamber 40 when screening, making it difficult to screen and reducing the screening efficiency.

Claims

1. A centrifugal screening machine for hot pot base production, characterized in that: It comprises a hollow cylindrical shell (1) with openings at both the top and bottom ends, 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 driving 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); an annular plug plate (7) is movably provided in the annular gap and capable of vertical displacement; a first hydraulic rod (8) is provided at the top of each annular plug plate (7); 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 being movably provided in the notch (11), the center of the screening barrel (2) being located on a 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 plate (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), 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 plug plate (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 plug plate (7), and the inner diameter of the discharge port (4) is equal to the distance between the scraper (12) and the annular plug plate (7).

2. A centrifugal screening machine for hot pot base production according to claim 1, characterized in that: 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).

3. A centrifugal screening machine for hot pot soup base production according to claim 2, 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 downwards, the third annular groove (16) being located directly below the annular insert plate (7) in the screening chamber (40), a first annular plug plate (17) being slidably arranged in the third annular groove (16), a telescopic component for enabling the first annular plug plate (17) to move up and down being arranged between the first annular plug plate (17) and the bottom wall of the third annular groove (16); the top surface of the first annular plug 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) in which it is located.

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

5. A centrifugal screening machine for hot pot soup base production according to claim 4, 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).

6. A centrifugal screening machine for hot pot base production according to claim 4 or 5, characterized in that: The inner bottom surface 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 material 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 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.

7. A centrifugal screening machine for hot pot soup base production according to claim 6, characterized in that: An annular discharge trough is provided at the bottom end of the annular insert plate (7), and a second annular blocking plate is detachably provided in the annular discharge trough.

8. 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) is in contact with a side of the screening chamber (40) away from the center of the screening barrel (2).

9. A centrifugal screening machine for hot pot soup 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).

10. A centrifugal screening machine for hot pot soup base production according to claim 9, 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) being fixedly connected to the bottom wall of the screening barrel (2), the bottom end of the flexible sleeve (26) being fixedly connected to the outer wall of the connecting ring (24), and the opening diameter of the top end of the flexible sleeve (26) being larger than the opening diameter of the bottom end; A limit 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 limit plate (27), and first horizontal slide grooves (29) slidably matched with the first sliders (28) are provided on both sides of the U-shaped plate (23); the horizontal 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 inside 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 being the same as the number of the discharge ports (4), and a circular hole is provided at the top end of each of the collection chambers.

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