A centrifugal screening device for processing raw materials of hotpot condiments

Abstract

The application provides a centrifugal screening device for processing hot pot material, and belongs to the technical field of hot pot material screening. The device comprises a screening box, a screening barrel rotatably arranged in the screening box, a screening cylinder coaxially arranged in the screening barrel and dividing the screening barrel into multiple screening cavities, a barrel cover arranged directly above the screening barrel and capable of contacting the screening barrel through a first driving assembly, a partition cylinder coaxially arranged in the top wall of the barrel cover and dividing the barrel cover into multiple cavities, a suction plate arranged in each cavity, and a second driving assembly for driving the suction plate to vertically displace. In addition to the innermost cavity, an annular plug is arranged in each of the remaining cavities, and a third driving assembly is arranged for driving the annular plug to vertically displace. Each suction plate is connected with a suction pipe, and each suction pipe penetrates the top wall of the barrel cover and is connected with a suction filter assembly outside the barrel cover. The application can conveniently take out the material in each screening cavity, thereby improving the operation convenience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hotpot material screening, and particularly relates to a centrifugal screening device for hotpot material processing. BACKGROUND

[0002] Hotpot material includes spices, seasonings and food materials, etc. Before use, the spices need to be cut into small pieces (such as grass fruit, monk fruit, star anise, and leaf, etc.), and then sieved to obtain spices of a specified particle size.

[0003] In the prior art, in order to improve the sieving efficiency of the spices, a centrifugal sieving device is often used to sieve the spices, and the sieving speed can be significantly improved under the action of centrifugal force. In order to realize multi-stage sieving of the spices, there is also a multi-stage centrifugal sieving device, which includes a screening box, a screening barrel rotatably arranged in the screening box, and a plurality of screening cylinders coaxially arranged in the screening barrel. The plurality of screening cylinders divide the screening barrel into a plurality of screening cavities. During centrifugal sieving, the spices with the smallest particle size directly fall through the sieve holes at the bottom end of the screening barrel to the bottom wall of the screening box, and can be directly taken out through the discharge port at the bottom end. However, the spices with other particle sizes are blocked in the corresponding screening cavities, and the materials in each screening cavity are difficult to be conveniently taken out because the screening barrel is arranged inside the screening box. SUMMARY

[0004] The present application aims to provide a centrifugal screening device for hotpot material processing, which can conveniently take out the materials in each screening cavity.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] A centrifugal screening device for hotpot material processing, comprising a screening box, a screening barrel rotatably arranged in the screening box, a screening cylinder coaxially arranged in the screening barrel and dividing the screening barrel into a plurality of screening cavities, a circular hole arranged at the center of the top end of the screening box, a barrel cover arranged directly above the screening barrel and capable of vertically passing through the circular hole and contacting the screening barrel through a first driving assembly, a partition cylinder coaxially arranged in the top wall of the barrel cover and dividing the barrel cover into a plurality of cavities, and a suction plate arranged in each cavity and a second driving assembly driving the suction plate to vertically displace.

[0007] Among them, the suction plate arranged in the innermost cavity is disc-shaped, and the suction plates in the remaining cavities are annular;

[0008] In addition to the innermost cavity, an annular plug is arranged in each of the remaining cavities, and a third driving assembly drives the annular plug to vertically displace;

[0009] Each suction plate in each cavity except the innermost cavity is in sliding connection with the outer wall of the ring-shaped insert plate;

[0010] Each suction plate is connected with a suction pipe, and each suction pipe penetrates the top wall of the barrel cover and is connected with a suction filter assembly outside the barrel cover;

[0011] The number of the screening barrels and the partition barrels is the same, and each screening barrel is provided with a partition barrel directly above.

[0012] The side wall and the bottom wall of the suction plate are provided with a plurality of suction holes.

[0013] Preferably, the outer wall of each partition barrel is provided with a first connecting ring, and the inner wall of each partition barrel and the barrel cover are provided with a second connecting ring.

[0014] In each cavity, the outer wall of the suction plate is in sliding connection with the inner wall of the second connecting ring, and the inner wall of the ring-shaped insert plate is in sliding connection with the outer wall of the first connecting ring.

[0015] Preferably, the first driving assembly comprises a gantry provided above the screening box and a first hydraulic rod provided on the top wall of the gantry; the barrel cover is arranged at the telescopic end of the first hydraulic rod; the two sides of the barrel cover are provided with slide rods, and the inner wall of the gantry is provided with a first vertical sliding groove in sliding cooperation with the slide rods.

[0016] The second driving assembly comprises a second hydraulic rod arranged on the suction plate, and the hydraulic cylinder of the second hydraulic rod is arranged on the inner top wall of the barrel cover or the side wall of the cavity matched with the suction plate.

[0017] The third driving assembly comprises a third hydraulic rod arranged on the top wall of the ring-shaped insert plate, and the hydraulic cylinder of the third hydraulic rod is arranged on the inner top wall of the barrel cover.

[0018] Preferably, the top end of the barrel cover is provided with a feeding port, the feeding port is provided with a feeding pipe coaxial with the innermost cavity, and the outer wall of the feeding pipe is connected with the inner wall of the second connecting ring in the innermost cavity.

[0019] The second driving assembly in the innermost cavity comprises two symmetrical second hydraulic rods arranged on the side wall of the cavity, two first connecting rods arranged on the side wall of the suction plate in the cavity, and a connecting plate arranged at the free end of the first connecting rod; the telescopic end of the second hydraulic rod penetrates the second connecting ring and is connected with the two connecting plates respectively.

[0020] Preferably, a telescopic hose is arranged between the connecting plate and the second connecting ring.

[0021] Preferably, a telescopic rod is arranged in the feeding pipe, the telescopic rod is composed of an upper rod and a lower rod slidingly arranged in the upper rod, an inner wall of the upper rod is provided with a second vertical sliding groove, and an outer wall of the lower rod is provided with a vertical sliding block slidingly matched with the second vertical sliding groove; a bottom end of the lower rod is rotationally connected with a top end of a circular suction plate, a scraper is fixedly connected to the lower rod, and a bottom end of the scraper is in contact with a top surface of the circular suction plate; a side wall of the upper rod is provided with a plurality of S-shaped rods, top ends of the S-shaped rods are connected with a rotating ring rotationally arranged at a periphery of the feeding port, and the rotating ring is rotated by a fourth driving assembly; a plurality of horizontal rods are arranged between the upper rod and the S-shaped rods.

[0022] Preferably, the fourth driving assembly comprises a rotating shaft arranged at a top end of the bucket cover, a first sprocket and a second sprocket respectively sleeved outside the rotating shaft and the rotating ring, and a first motor arranged at the top end of the bucket cover and fixedly connected with a top end of the rotating shaft through a motor bracket; the first sprocket and the second sprocket are meshed with each other; the top end of the bucket cover is fixedly provided with a fixed ring through a diagonal rod, the fixed ring is arranged directly above the rotating ring and rotationally connected with the rotating ring.

[0023] Preferably, the telescopic hose comprises an upper telescopic pipe and a lower telescopic pipe, and a limiting ring is arranged at an outer wall of a bottom end of the upper telescopic pipe; a side wall of the limiting ring is provided with a thimble, a bottom end of a second connecting ring in a most internal cavity is provided with a connecting block, a side of the connecting block close to the thimble is provided with a containing cavity, an electromagnet is fixedly arranged in the containing cavity, one end of the electromagnet close to the thimble is provided with a spring, one end of the spring close to the thimble is provided with an iron block slidingly connected with an inner wall of the containing cavity, and one end of the iron block close to the thimble is provided with a limiting block capable of being inserted into the thimble.

[0024] Preferably, the suction filtering assembly comprises a filtering box arranged outside the bucket cover and connected with the suction pipe, a filtering screen arranged in the filtering box, a discharge port arranged in a side wall of the filtering box, a baffle arranged at the discharge port, an exhaust pipe arranged in the side wall of the filtering box, and a negative pressure fan arranged at an air outlet end of the exhaust pipe.

[0025] A first push plate is slidingly arranged in the filtering box, a second push plate is slidingly arranged at a side of the first push plate close to the discharge port; a fourth hydraulic rod is arranged at a side of the filtering box away from the discharge port and drives the first push plate to move towards or away from the discharge port, and a fifth hydraulic rod is arranged at a side of the second push plate away from the discharge port and drives the second push plate to vertically displace.

[0026] Preferably, a central shaft is arranged at the bottom end of the screening barrel, the bottom end of the central shaft penetrates the bottom wall of the screening box and is fixedly connected with the output end of the second motor arranged on the bottom wall of the screening box; the side wall of the screening barrel is provided with a plurality of second connecting rods, the free ends of the plurality of second connecting rods are commonly provided with an annular sliding block, and the inner wall of the screening box is provided with an annular sliding groove in sliding connection with the annular sliding block.

[0027] Compared with the prior art, the present application has the following effects:

[0028] 1. By arranging the barrel cover and a plurality of separation barrels coaxial with the barrel cover in the barrel cover, the bottom end of the barrel cover and the top end of the screening barrel are in contact during centrifugal screening, the bottom end of the plurality of separation barrels is in contact with the top end of the screening barrels located directly below, and thus a relatively closed screening space is formed between each screening cavity and the cavity above it. When the height of the material during centrifugation in a certain screening space is higher than the top end of the screening barrel or the screening barrel, the material is blocked by the separation barrel or the barrel cover at the upper part of the screening space, thereby avoiding the material from expanding into other screening spaces and ensuring that the material is fully screened in the corresponding screening cavity.

[0029] By arranging a suction plate in each cavity and a second driving assembly for driving the suction plate to vertically displace, the suction plate can be lowered into the screening cavity directly below it after screening is completed, the material in the screening cavity is sucked into the suction plate through the suction holes arranged on the side wall or bottom wall of the suction plate by the suction filtering assembly connected with the suction plate, and is blocked by the suction filtering assembly, thereby realizing the collection of the material in different screening cavities.

[0030] 2. During centrifugal screening, the material is generally accumulated in the peripheral part of each screening cavity (the peripheral part refers to the side of the screening cavity away from the center of the screening barrel), but once the centrifugation is completed, the material will fall under the action of gravity from the peripheral part to the inner part (the inner part refers to the side of the screening cavity close to the center of the screening barrel), and even penetrate into the adjacent screening cavity on the inner side of the screening barrel, thereby causing the material in all screening cavities except the outermost screening cavity to be difficult to be fully screened. Based on this, an annular plug plate is arranged in each cavity and close to the inner part of the cavity, and a third driving assembly for driving the annular plug plate to displace upward and downward is arranged. When the screening is about to be completed (at this time, the centrifugation is still in progress), the third driving assembly is directly started to lower the annular plug plate in each cavity to block the material in different screening cavities.

[0031] If the annular plug plate is not inserted during centrifugation but is inserted after the centrifugation is completed, although it can ensure that the materials in different screening cavities are not mixed after the insertion, the material that penetrates between adjacent screening cavities before the insertion is still not fully screened.

[0032] In addition, if the top end of the screening cavity is not closed, during the screening operation, the continuous rotation of the material will cause some fine material to spread to the cavity and adhere to the inner wall of the cavity, resulting in material loss; at the same time, the long-term suspension of the material in the cavity will adversely affect various drive components of the cavity.

[0033] Therefore, in the innermost cavity, the annular plug plate outer wall and the cavity inner wall are in contact, which can close the top end of the innermost screening cavity; in the remaining cavities, the annular plug plate and the suction plate form a blocking assembly, which closes the top end of the screening cavity directly below, thereby preventing the material in the screening cavity from spreading upward into the cavity and effectively preventing material loss.

[0034] When the material in the screening cavity is suctioned, due to the annular plug plate, the material in the outer screening cavity will not enter the adjacent inner screening cavity, ensuring that the material in the adjacent screening cavity will not be mixed during the suction operation, and ensuring that the material collected in each screening cavity is fully screened.

[0035] Through the synergistic effect of the above components, the purpose of collecting the material in different screening cavities can be effectively achieved, and at the same time, the mixing of the material in adjacent screening cavities during collection can be avoided, the material screening fullness is improved, and during the screening process, the top end of the screening cavity is closed to prevent the material from spreading upward into the cavity and causing material loss. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a cross-sectional structure schematic view of the embodiment 1 in the front view direction;

[0037] Figure 2 is Figure 1 is a structure schematic view of the embodiment 1 in the top view direction of the screening barrel;

[0038] Figure 3 is Figure 1 is a cross-sectional structure schematic view of the embodiment 1 in the front view direction when the annular plug plate is working;

[0039] Figure 4 is Figure 1 is a cross-sectional structure schematic view of the embodiment 1 in the front view direction of the barrel cover;

[0040] Figure 5 is Figure 1 is a cross-sectional structure schematic view of the embodiment 1 in the front view direction of the suction plate in the innermost cavity;

[0041] Figure 6 is Figure 1 is a cross-sectional structure schematic view of the embodiment 1 in the front view direction after the first connecting ring and the second connecting ring are arranged in the barrel cover;

[0042] Figure 7 is Figure 6Schematic diagram of sectional structure in front view direction;

[0043] Figure 8 Schematic diagram of sectional structure in front view direction of the innermost cavity after setting the flexible hose and the feeding pipe;

[0044] Figure 9 Schematic diagram of sectional structure in top view direction of the flexible hose;

[0045] Figure 10 Schematic diagram of sectional structure in top view direction of the flexible rod;

[0046] Figure 11 Schematic diagram of structure in top view direction of the rotating ring and the rotating shaft;

[0047] Figure 12 Schematic diagram of structure in top view direction of the rotating ring and the rotating shaft; Figure 8 Schematic diagram of structure in front view direction of the innermost cavity after setting the limiting ring;

[0048] Figure 13 Schematic diagram of sectional structure in bottom view direction of the limiting ring in the innermost cavity;

[0049] Figure 14 Schematic diagram of sectional structure in top view direction of the limiting ring in the innermost cavity; Figure 13 Schematic diagram of enlarged structure in A;

[0050] Figure 15 Schematic diagram of sectional structure in top view direction of the flexible hose without setting the limiting ring; Figure 12

[0051] Schematic diagram of sectional structure in top view direction of the flexible hose; Figure 16 Figure 12 Schematic diagram of sectional structure in top view direction of the flexible hose;

[0052] Figure 17 Schematic diagram of sectional structure in front view direction of the filter box;

[0053] Figure 18 Figure 17 Schematic diagram of sectional structure in right view direction;

[0054] ​​In the figure: 1-screening box, 2-screening barrel, 3-screening cylinder, 4-barrel cover, 5-partitioning cylinder, 6-suction plate, 7-annular plug plate, 8-suction pipe, 9-first connecting ring, 10-second connecting ring, 11-gantry, 12-first hydraulic rod, 13-sliding rod, 14-first vertical chute, 15-second hydraulic rod, 16-third hydraulic rod, 17-feeding port, 18-feeding pipe, 19-connecting plate, 20-telescopic hose, 21-telescopic rod, 22-second vertical chute, 23-scraper, 24-S-shaped rod, 25-rotating ring, 26-cross bar, 27-rotating shaft , 28-first sprocket, 29-first motor, 30-limiting ring, 31-jack, 32-connecting block, 33-electromagnet, 34-iron block, 35-limiting block, 36-filter box, 37-filter screen, 38-baffle, 39-exhaust pipe, 40-first push plate, 50-second push plate, 41-fourth hydraulic rod, 42-fifth hydraulic rod, 43-discharging pipe, 44-second motor, 45-second connecting rod, 46-annular slider, 47-annular slide, 51-fixed ring, 52-first connecting rod, 53-blocking ring, 54-horizontal slide, 55-horizontal slider. DETAILED DESCRIPTION

[0055] Below in conjunction with the appended Figures 1-18 , 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.

[0056] Example 1

[0057] A centrifugal screening device for processing hot pot base raw materials, such as Figures 1-4 As shown, it includes a screening box 1, a screening barrel 2 rotatably arranged in the screening box 1, a screening cylinder 3 coaxially arranged in the screening barrel 2 and dividing the screening barrel 2 into a plurality of screening cavities, a circular hole arranged at the center of the top of the screening box 1, a barrel cover 4 (the barrel cover 4 is a hollow cylindrical structure with an open bottom end) arranged just above the screening barrel 2 and capable of vertically passing through the circular hole and contacting the screening barrel 2 through a first driving component, a separating cylinder 5 coaxially arranged on the top wall of the barrel cover 4 and dividing the barrel cover 4 into a plurality of cavities, a suction plate 6 arranged in each of the cavities, and a second driving component for driving the suction plate 6 to perform vertical displacement, as shown. Figure 1 、 Figure 2 and Figure 4 As shown, the second driving assembly includes a second hydraulic rod 15 provided on the suction plate 6, and the hydraulic cylinder of the second hydraulic rod 15 is provided on the inner top wall of the barrel cover 4 or the side wall of the cavity adapted to the suction plate 6. In this embodiment, Figure 1 、 Figure 2 and Figure 4As shown, the second hydraulic rod 15 is arranged on the side wall of the cavity adapted to the suction plate 6 .

[0058] Among them, such as Figure 1 、 Figures 2-5 As shown, the suction plate 6 provided in the innermost cavity is disc-shaped, and the suction plates 6 in the remaining cavities are ring-shaped;

[0059] like Figures 1-4 As shown, except for the innermost cavity, each of the remaining cavities is further provided with an annular insert plate 7 and a third driving component for driving the annular insert plate 7 to perform vertical displacement; Figure 1 、 Figure 2 and Figure 4 As shown, the third driving assembly includes a third hydraulic rod 16 arranged on the top wall of the annular insert plate 7 , and the hydraulic cylinder of the third hydraulic rod 16 is arranged on the inner top wall of the barrel cover 4 .

[0060] Except for the innermost cavity, the suction plates 6 in each of the remaining cavities are slidably connected to the outer wall of the annular insert plate 7;

[0061] like Figure 1 、 Figure 2 and Figure 4 As shown, each of the suction plates 6 is connected to a suction pipe 8 at the top, and each of the suction pipes 8 passes through the top wall of the barrel cover 4 and is connected to the suction filter assembly outside the barrel cover 4. The suction pipe 8 can generally be divided into two sections, one of which is connected to the suction plate 6, and the other is connected to the suction filter assembly, and the two sections are connected by a pipe joint in the prior art. The section connected to the suction filter assembly is set as a hose, and the section connected to the suction plate 6 can be set as a hose or a hard pipe. If it is set as a hard pipe, the top of the hard pipe needs to pass through the top wall of the barrel cover 4 and be slidably connected to the barrel cover 4. If it is set as a hose, the pipe joint can be fixed to the barrel cover 4 so that the section of the suction pipe 8 connected to the suction plate 6 is received in the corresponding cavity.

[0062] like Figures 1-4 As shown, the number of the screening cylinders 3 and the separation cylinders 5 is the same, and a separation cylinder 5 is provided directly above each screening cylinder 3;

[0063] like Figure 5 As shown, the side wall and bottom wall of the suction plate 6 are provided with a plurality of suction holes.

[0064] The sieve holes on the bottom wall and side wall of the sieve barrel 2 have the same aperture size and are smaller than the aperture size of the sieve holes on all sieve cylinders 3; in the multiple sieve cylinders 3, the aperture size of the sieve holes decreases from the inner layer to the outer layer;

[0065] like Figure 1As shown in the figure, the bottom wall of the screening box 1 is provided with supporting legs, and the bottom wall of the screening box 1 is provided with a discharge pipe 43, and the bottom wall of the screening box 1 is inclined downward along the direction of the discharge pipe 43.

[0066] Further, as shown in the figure, Figures 1-2 As shown in the figure, the bottom end of the center of the screening barrel 2 is provided with a center shaft, the bottom end of the center shaft penetrates the bottom wall of the screening box 1 and is fixedly connected with the output end of the second motor 44 provided on the bottom wall of the screening box 1; the side wall of the screening barrel 2 is provided with a plurality of second connecting rods 45, and the free ends of the plurality of second connecting rods 45 are jointly provided with an annular sliding block 46, and the inner wall of the screening box 1 is provided with an annular sliding groove 47 in sliding connection with the annular sliding block 46.

[0067] Further, as shown in the figure, Figure 1 And Figure 2 As shown in the figure, the first driving assembly includes a gantry 11 arranged above the screening box 1, and a first hydraulic rod 12 arranged on the top wall of the gantry 11 (the number of the first hydraulic rod 12 and the position of the first hydraulic rod 12 on the top wall of the gantry 11 are not limited); the barrel cover 4 is arranged at the telescopic end of the first hydraulic rod 12; the two sides of the barrel cover 4 are provided with slide rods 13, and the inner wall of the gantry 11 is provided with a first vertical sliding groove 14 in sliding cooperation with the slide rods 13, so as to limit the moving direction of the barrel cover 4 and ensure that it always moves vertically; the bottom end of the gantry 11 is provided with a horizontal sliding block 55, and the two sides of the screening box 1 are respectively provided with horizontal sliding grooves 54 in sliding cooperation with the horizontal sliding block 55. In actual implementation, the horizontal sliding groove 54 and the screening box 1 are preferably fixedly connected, such as directly fixedly connecting the horizontal sliding groove 54 with the supporting legs, or connecting the horizontal sliding groove 54 with a certain part of the screening box 1 through any connecting assembly in the prior art, so as to ensure that the movement path and positional relationship of the horizontal sliding groove 54 and the screening box 1 always remain consistent.

[0068] Further, as shown in the figure, Figure 17 And Figure 18 As shown in the figure, the suction filtering assembly includes a filtering box 36 arranged outside the barrel cover 4 and connected with the suction pipe 8, a filtering screen 37 horizontally arranged in the filtering box 36, a discharge port arranged on the side wall of the filtering box 36, a baffle 38 detachably arranged (such as in a hinged manner) at the discharge port, an exhaust pipe 39 arranged on the side wall of the filtering box 36, and a negative pressure fan (prior art, not shown in the figure) arranged at the air outlet end of the exhaust pipe 39;

[0069] As shown in the figure, Figure 17 And Figure 18As shown, the first push plate 40 is slidingly arranged in the filter box 36, the second push plate 50 is slidingly arranged on the side of the first push plate 40 close to the discharge port, and the first push plate 40 is slidingly connected with the side wall of the filter box 36 (a sliding rail and a sliding groove can be arranged on both sides of the sliding connection to ensure that the first push plate 40 always slides in the horizontal direction). There is a small gap between the side wall of the second push plate 50 and the filter box 36; the fourth hydraulic rod 41 is arranged on the side of the filter box 36 away from the discharge port to drive the first push plate 40 to move towards or away from the discharge port, and the fifth hydraulic rod 42 is arranged on the side of the second push plate 50 away from the discharge port to drive the second push plate 50 to vertically displace.

[0070] Working principle: first, add the crushed hot pot seasoning raw materials into the innermost screening cavity, then push the gantry 11, make the horizontal sliding block 55 slide in the horizontal sliding groove 54, when sliding to the end of the horizontal sliding groove 54, the bucket cover 4 on the gantry 11 is just located above the screening barrel 2, then through the limiting assembly (such as connecting the horizontal sliding block 55 and the horizontal sliding groove 54 by bolts, or directly setting the horizontal sliding groove 54 as an electric sliding groove, which can be automatically limited after sliding to the specified position, the present application does not limit the limiting assembly), then start the first hydraulic rod 12 to make the bucket cover 4 move downward until contacting with the top end of the screening barrel 2, at this time, the bottom end of the separation cylinder 5 and the top end of the screening cylinder 3 located below it also contact, and the suction plate 6 and the annular insert ring are also just located in the position shown, to block the top end of each screening cavity. Figure 1

[0071] Then, the second motor 44 is turned on to drive the screening barrel 2 to rotate, and under the action of centrifugal force, the multi-stage screening purpose is achieved. During centrifugation, the screening barrel 2 and the bucket cover 4, and the screening cylinder 3 and the separation cylinder 5 can be slidingly connected. After screening, materials of different particle sizes remain in the corresponding screening cavities. During the rotation of the screening barrel 2, the annular sliding block 46 rotates in the annular sliding groove 47, thereby playing a certain supporting and limiting role on the screening barrel 2.

[0072] ​When the screening is almost finished (e.g. several seconds before the screening is finished), the third hydraulic rod 16 is opened to make all the annular plug plates 7 move downwards. Since the material is still in a centrifugal state during the moving, the material will be located at the outer peripheral part of each screening cavity. When the annular plug plate 7 contacts the inner peripheral wall of the screening cavity and moves downwards, there is almost no material between the bottom of the annular plug plate 7 and the inner peripheral wall of the screening cavity. After the annular plug plate 7 contacts the bottom wall of the screening cavity, the second hydraulic rod 15 and the negative pressure fan are started. Under the action of the second hydraulic rod 15, the suction plate 6 gradually moves downwards into the screening cavity. Under the action of the negative pressure fan, a negative pressure is formed in the suction filter assembly to make the material in the screening cavity be sucked along the suction holes at the bottom end of the suction plate 6 and then be blocked by the filter screen 37 to be retained on the filter screen 37. When the material accumulated on the filter screen 37 is too much to cause the suction efficiency to be reduced, the fifth hydraulic rod 42 is opened to make the second push plate 50 move downwards until it contacts the filter screen 37. Then the fourth hydraulic rod 41 is opened to make the first push plate 40 and the second push plate 50 move towards the baffle 38 at the same time, so as to push the material to one side of the filter screen 37 to ensure that the filter screen 37 can continue to work. Then the first push plate 40 and the second push plate 50 are reset. When resetting, the second push plate 50 is first moved upwards by the fifth hydraulic rod 42, and then the first push plate 40 and the second push plate 50 are horizontally displaced to the original position by the fourth hydraulic rod 41, so as to ensure that the material on the filter screen 37 will not be pushed away from the discharge port. When it is needed to take out the material, the baffle 38 is opened, and the material can be taken out. After the material is collected, the first hydraulic rod 12 is started to make the barrel cover 4 move upwards, and the gantry 11 is moved to the other end of the horizontal sliding groove 54. Thus, the screening barrel 2 can be filled with material again to perform the next batch of material screening operation.

[0073] Example 2

[0074] In Example 1, in order to achieve the plugging of the top end of the screening cavity, the annular plug plate 7 needs to contact the inner peripheral side of the cavity, and then contact the inner peripheral side of the screening cavity when it is subsequently inserted. Since the screening barrel 2 is constantly rotating when the annular plug plate 7 is inserted, the annular plug plate 7 and the inner peripheral side of the screening cavity directly below it will have a large friction, which seriously affects the performance and service life of the annular plug plate 7 and the screening cylinder 3. In addition, since the suction plate 6 contacts the side wall of the screening cavity when it moves, the suction holes in the side wall of the suction plate 6 are difficult to play a suction role, which further reduces the suction efficiency. Based on this, on the basis of Example 1, as shown in Figure 6 and Figure 7 each outer wall of the partition cylinder 5 is provided with a first connecting ring 9, the barrel cover 4 and the inner wall of each partition cylinder 5 are provided with a second connecting ring 10; in each cavity, the outer wall of the suction plate 6 and the inner wall of the second connecting ring 10 are slidingly connected, and the inner wall of the annular plug plate 7 and the outer wall of the first connecting ring 9 are slidingly connected.

[0075] In this embodiment, the innermost top end of the screening cavity can be sealed by the cooperation of the first connecting ring 9, the second connecting ring 10 and the suction plate 6, and the top end of the remaining screening cavities can be sealed by the cooperation of the first connecting ring 9, the second connecting ring 10, the suction plate 6 and the annular plug plate 7. In addition, the annular plug plate 7 and the suction plate 6 can form a certain gap with the side wall of the screening cavity during operation, thereby avoiding large friction between the annular plug plate 7 and the side wall of the screening cavity, and ensuring that the suction holes in the side wall of the suction plate 6 can also function smoothly. In addition, the top end of the screening cavity can always be kept in a sealed state during the entire insertion process of the annular plug plate 7, thereby preventing the material from spreading into the cavity.

[0076] Embodiment 3

[0077] In Embodiment 1 or Embodiment 2, when it is necessary to add material, the centrifugal screening operation needs to be stopped and the bucket cover 4 needs to be opened, which is troublesome. Based on this, on the basis of Embodiment 1 or 2, as shown in Figure 8 , a feeding port 17 (the vertical projection of the feeding port 17 is located in the innermost cavity) is arranged at the top center of the bucket cover 4, a feeding pipe 18 coaxial with the innermost cavity is arranged in the feeding port 17, and the outer wall of the feeding pipe 18 is connected with the inner wall of the second connecting ring 10 in the innermost cavity. In this way, the material can be prevented from falling onto the second connecting ring 10, thereby avoiding material loss. As shown in Figure 8 and Figure 9 , the second driving assembly located in the innermost cavity includes two symmetrical second hydraulic rods 15 arranged on the side wall of the cavity, two first connecting rods 52 arranged on the side wall of the suction plate 6 in the cavity, and a connecting plate 19 arranged at the free end of the first connecting rod 52. The telescopic end of the second hydraulic rod 15 penetrates the second connecting ring 10 and is connected with the two connecting plates 19, respectively. In this scheme, when it is necessary to add material, the material is directly added to the feeding port 17, and the material falls along the feeding pipe 18 to the suction plate 6. In this process, the second hydraulic rod 15 is started to move the suction plate 6 downward by a distance, so as to form a gap between the suction plate 6 and the second connecting ring 10, and the material falls along the gap into the screening cavity. In this way, the purpose of adding material while centrifugal screening can be achieved.

[0078] Embodiment 4

[0079] In Embodiment 3, during the process of starting the second hydraulic rod 15 to move the suction plate 6 downward, a large amount of added material will directly contact the telescopic section (i.e. the piston) of the second hydraulic rod 15, which will cause dust to adhere to the piston, thereby easily increasing the wear of the sliding surface of the hydraulic cylinder and seriously affecting the service life of the second hydraulic rod 15. Based on this, on the basis of Embodiment 3, as shown inFigure 8 As shown, a flexible hose 20 (such as a transparent steel wire hose) is arranged between the connecting plate 19 and the second connecting ring 10. By arranging the flexible hose 20, the piston of the second hydraulic rod 15 can be protected, thereby avoiding contact between the material and the piston during the feeding process, and improving the service life of the second hydraulic rod 15.

[0080] However, in actual implementation, since the piston of the second hydraulic rod 15 needs to drive the suction plate 6 to move downward to the bottom wall of the screening box 1, the flexible hose 20 is arranged to be relatively long. When feeding, since the suction plate 6 itself moves downward by a short distance, the overall extension of the flexible hose 20 is relatively short, resulting in a large number of compression wrinkles on the surface of the flexible hose 20, and thereby causing the material to adhere to the wrinkled surface or the wrinkled gap of the flexible hose 20, resulting in difficulty in screening the material.

[0081] Based on this, as shown in Figure 12 and Figure 15 , the flexible hose 20 includes an upper flexible tube and a lower flexible tube (the length of the upper flexible tube is longer than that of the lower flexible tube), and a limiting ring 30 arranged on the outer wall of the bottom end of the upper flexible tube; as shown in Figure 13 and Figure 14 , the side wall of the limiting ring 30 is provided with a insertion hole 31, the bottom end of the second connecting ring 10 located in the innermost cavity is provided with a connecting block 32, the side of the connecting block 32 close to the insertion hole 31 is provided with a containing cavity, an electromagnet 33 (prior art) is fixedly arranged in the containing cavity, the end of the electromagnet 33 close to the insertion hole 31 is provided with a spring, the end of the spring close to the insertion hole 31 is provided with an iron block 34 in sliding connection with the inner wall of the containing cavity, and the end of the iron block 34 close to the insertion hole 31 is provided with a limiting block 35 capable of being inserted into the insertion hole 31. As shown in Figure 12 and Figure 16 , the bottom end of the second connecting ring 10 and located directly above the limiting ring 30 is provided with a blocking ring 53 capable of contacting the limiting ring 30.

[0082] In specific implementation, when the second hydraulic rod drives the suction plate 6 to move downward during the feeding process until the lower flexible tube is fully extended, at this time, the upper flexible tube is fully in a compressed state and located in the blocking ring 53, so that the material does not contact the upper flexible tube during the feeding process, avoiding the material adhering to the wrinkled surface of the upper flexible tube. Since the lower flexible tube is in a fully extended state, the surface has no wrinkles, which can effectively reduce the adhesion of the material.

[0083] When the centrifugal screening needs to be pumped, the electromagnet 33 is started to drive the limit block 35 to move away from the insertion hole 31, thereby releasing the limit of the limit ring 30. Thus, the upper and lower telescopic pipes can be elongated with the downward movement of the suction plate 6, so that the compression hose can always protect the piston of the second hydraulic rod 15 during the whole process.

[0084] Embodiment 5

[0085] In Embodiment 3 or Embodiment 4, part of the material will fall to the top end of the suction plate 6 during feeding, which makes it difficult to fully screen the material. Therefore, the top end of the suction plate 6 is designed as a conical surface (not shown in the figure). Although the conical surface can alleviate the material residue, it will still retain some material in actual implementation due to the large area of the conical surface and the residence of the material. Therefore, as shown in Figure 8 and Figure 10 , a telescopic rod 21 is arranged in the feeding pipe 18. The telescopic rod 21 is composed of an upper rod and a lower rod which is slidingly arranged in the upper rod (both the upper rod and the lower rod are hollow rods). The inner wall of the upper rod is provided with a second vertical sliding groove 22, and the outer wall of the lower rod is provided with a vertical sliding block which slidingly cooperates with the second vertical sliding groove 22. The bottom end of the lower rod is rotationally connected with the top end (i.e. the center of the top end of the conical surface) of the circular suction plate 6, and a scraper 23 is fixedly connected to the lower rod. The bottom end of the scraper 23 is in contact with the top surface of the circular suction plate 6. As shown in Figure 4 and Figure 11 , the side wall of the upper rod is provided with a plurality of S-shaped rods 24, and the top ends of the plurality of S-shaped rods 24 are connected with a rotating ring 25 which is rotationally arranged at the periphery of the feeding port 17. The rotating ring 25 is rotated by a fourth driving assembly. A plurality of horizontal rods 26 are arranged between the upper rod and the S-shaped rods 24 to improve the connection firmness between the telescopic rod 21 and the S-shaped rods 24, and to dredge the material when they are rotated, thereby avoiding the blockage of the material in the feeding pipe 18. In this embodiment, the suction pipe 8 connected with the suction plate 6 in the innermost cavity is a vertical hard pipe which is movably arranged in the inner rod (not shown in the figure), and the top end of the hard pipe penetrates the top wall of the bucket cover 4 and is slidingly connected with the bucket cover 4.

[0086] Further, as shown in Figure 11As shown, the fourth driving assembly comprises a rotating shaft 27 arranged at the top end of the barrel cover 4, a first sprocket 28 and a second sprocket arranged outside the rotating shaft 27 and the rotating ring 25 respectively, and a first motor 29 arranged at the top end of the barrel cover 4 through a motor bracket and fixedly connected with the top end of the rotating shaft 27; the first sprocket 28 and the second sprocket are engaged with each other; the top end of the barrel cover 4 is fixedly provided with a fixed ring 51 through a diagonal rod (so that the container containing the material can directly contact the fixed ring 51 when the material is added, for example, in a pouring manner, the container can be supported to a certain extent), the fixed ring 51 is arranged directly above the rotating ring 25 and is rotatably connected with the rotating ring 25.

[0087] Working principle: during the material adding process, the suction plate 6 is lowered by a distance (the distance should not be too large to avoid affecting the centrifugal operation of the material in the innermost cavity) and the first motor 29 is turned on, under the action of the first motor 29, the first sprocket 28 outside the rotating shaft 27 drives the second sprocket to rotate, thereby driving the rotating ring 25 to rotate, thereby driving the S-shaped rod 24, the cross rod 26 and the telescopic rod 21 to rotate, thereby driving the scraper 23 to rotate at the top end of the suction plate 6 to scrape off the material adhered to the top end of the suction plate 6, so as to avoid the accumulation of the material on the suction plate 6.

Claims

1. A centrifugal screening apparatus for processing raw materials of hotpot condiments, characterized in that, The utility model provides a screening device, which comprises a screening box (1), a screening barrel (2) rotatably arranged in the screening box (1), a screening cylinder (3) coaxially arranged in the screening barrel (2) and dividing the screening barrel (2) into a plurality of screening cavities, a circular hole arranged at the center of the top end of the screening box (1), a barrel cover (4) arranged directly above the screening barrel (2) and capable of vertically penetrating the circular hole and contacting the screening barrel (2) through a first driving assembly, a partition cylinder (5) coaxially arranged in the top wall of the barrel cover (4) and dividing the barrel cover (4) into a plurality of cavities, and a suction plate (6) arranged in each cavity and a second driving assembly driving the suction plate (6) to vertically displace; The suction plate (6) arranged in the innermost cavity is disc-shaped, and the suction plates (6) arranged in the remaining cavities are annular; In addition to the innermost cavity, an annular plug-in plate (7) is arranged in each of the remaining cavities, and a third driving assembly drives the annular plug-in plate (7) to vertically displace; In addition to the innermost cavity, the suction plate (6) arranged in each of the remaining cavities is in sliding connection with the outer wall of the annular plug-in plate (7); Each suction plate (6) is connected with a suction pipe (8) at the top end, and each suction pipe (8) penetrates the top wall of the barrel cover (4) and is connected with a suction filtering assembly outside the barrel cover (4); The number of the screening cylinders (3) is the same as that of the partition cylinders (5), and a partition cylinder (5) is arranged directly above each screening cylinder (3); The side wall and the bottom wall of the suction plate (6) are provided with a plurality of suction holes; The top center of the barrel cover (4) is provided with a feeding port (17), the feeding port (17) is provided with a feeding pipe (18) coaxial with the innermost cavity, and the outer wall of the feeding pipe (18) is connected with the inner wall of the second connecting ring (10) in the innermost cavity; The second driving assembly located in the innermost cavity comprises two symmetrical second hydraulic rods (15) arranged on the side wall of the cavity, two first connecting rods (52) arranged on the side wall of the suction plate (6) in the cavity, and a connecting plate (19) arranged at the free end of the first connecting rod (52); the telescopic ends of the second hydraulic rods (15) penetrate the second connecting ring (10) and are respectively connected with the two connecting plates (19). The connecting plate (19) and the second connecting ring (10) are provided with a flexible hose (20), the flexible hose (20) comprises an upper flexible tube and a lower flexible tube, and a limiting ring (30) is arranged on the outer wall of the bottom end of the upper flexible tube; the side wall of the limiting ring (30) is provided with a jack (31), the bottom end of the second connecting ring (10) located in the innermost cavity is provided with a connecting block (32), the connecting block (32) is provided with a containing cavity on the side close to the jack (31), the containing cavity is fixedly provided with an electromagnet (33), one end of the electromagnet (33) close to the jack (31) is provided with a spring, one end of the spring close to the jack (31) is provided with an iron block (34) in sliding connection with the inner wall of the containing cavity, and one end of the iron block (34) close to the jack (31) is provided with a limiting block (35) capable of being inserted into the jack (31). The bottom end of the second connecting ring (10) is provided with a blocking ring (53) located directly above the limiting ring (30).

2. The centrifugal screening apparatus for processing raw materials of hotpot condiments according to claim 1, characterized in that, The outer wall of each separating cylinder (5) is provided with a first connecting ring (9), and the inner wall of each separating cylinder (5) is provided with a second connecting ring (10). In each cavity, the outer wall of the suction plate (6) and the inner wall of the second connecting ring (10) are in sliding connection, and the inner wall of the annular plug-in plate (7) and the outer wall of the first connecting ring (9) are in sliding connection.

3. The centrifugal screening apparatus for processing hotpot base material according to claim 2, wherein, The first driving assembly comprises a gantry (11) arranged above the screening box (1) and a first hydraulic rod (12) arranged on the top wall of the gantry (11); the bucket cover (4) is arranged at the telescopic end of the first hydraulic rod (12); the two sides of the bucket cover (4) are provided with slide rods (13), and the inner wall of the gantry (11) is provided with first vertical sliding grooves (14) in sliding cooperation with the slide rods (13); The second driving assembly comprises a second hydraulic rod (15) arranged on the suction plate (6), and the hydraulic cylinder of the second hydraulic rod (15) is arranged on the inner top wall of the bucket cover (4) or the side wall of the cavity matched with the suction plate (6); The third driving assembly comprises a third hydraulic rod (16) arranged on the top wall of the annular plug-in plate (7), and the hydraulic cylinder of the third hydraulic rod (16) is arranged on the inner top wall of the bucket cover (4).

4. The centrifugal screening apparatus for processing hotpot base material according to claim 3, wherein, The feeding pipe (18) is internally provided with a telescopic rod (21) which is composed of an upper rod and a lower rod which is slidingly arranged inside the upper rod, the inner wall of the upper rod is provided with a second vertical sliding groove (22), the outer wall of the lower rod is provided with a vertical sliding block which is slidingly matched with the second vertical sliding groove (22); the bottom end of the lower rod is rotatably connected with the top end of the circular suction plate (6), a scraper (23) is fixedly connected to the lower rod, the bottom end of the scraper (23) is in contact with the top surface of the circular suction plate (6); the side wall of the upper rod is provided with a plurality of S-shaped rods (24), the top ends of the plurality of S-shaped rods (24) are connected with a rotating ring (25) which is rotatably arranged at the periphery of the feeding port (17), the rotating ring (25) is rotated by a fourth driving assembly; a plurality of cross rods (26) are arranged between the upper rod and the S-shaped rod (24).

5. The centrifugal screening apparatus for processing hotpot base material according to claim 4, wherein, The fourth driving assembly comprises a rotating shaft (27) arranged at the top end of the bucket cover (4), a first sprocket (28) and a second sprocket which are respectively sleeved outside the rotating shaft (27) and the rotating ring (25), and a first motor (29) arranged at the top end of the bucket cover (4) through a motor bracket and fixedly connected with the top end of the rotating shaft (27); the first sprocket (28) and the second sprocket are meshed with each other; the top end of the bucket cover (4) is fixedly provided with a fixed ring (51) through a diagonal rod, the fixed ring (51) is arranged directly above the rotating ring (25) and is rotatably connected with the rotating ring (25).

6. The centrifugal screening apparatus for processing hotpot base material according to claim 1, wherein, The suction filter assembly comprises a filter box (36) arranged outside the bucket cover (4) and connected with the suction pipe (8), a filter screen (37) arranged in the filter box (36), a discharge port arranged in the side wall of the filter box (36), a baffle (38) arranged at the discharge port, an exhaust pipe (39) arranged in the side wall of the filter box (36), and a negative pressure fan arranged at the air outlet end of the exhaust pipe (39); A first push plate (40) is slidingly arranged in the filter box (36), a second push plate (50) is slidingly arranged on the side of the first push plate (40) close to the discharge port; a fourth hydraulic rod (41) is arranged on the side of the filter box (36) away from the discharge port to drive the first push plate (40) to move towards or away from the discharge port, a fifth hydraulic rod (42) is arranged on the side of the second push plate (50) away from the discharge port to drive the second push plate (50) to vertically displace.

7. The centrifugal screening apparatus for processing hotpot base material according to claim 1, wherein, A central shaft is arranged at the bottom end of the screening barrel (2), the bottom end of the central shaft penetrates the bottom wall of the screening box (1) and is fixedly connected with the output end of a second motor (44) arranged on the bottom wall of the screening box (1); a plurality of second connecting rods (45) are arranged on the side wall of the screening barrel (2), the free ends of the plurality of second connecting rods (45) are jointly provided with an annular sliding block (46), and the inner wall of the screening box (1) is provided with an annular sliding groove (47) which is slidingly connected with the annular sliding block (46).

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