Screening machine

Abstract

The invention relates to the technical field of screening, in particular to a powder screening machine which comprises a supporting part and further comprises a rolling powder screening part, a disturbance part and a vibrating powder screening part, and when the rolling powder screening part rolls, candy particles in the rolling powder screening part can be primarily screened; the plurality of disturbance parts are arranged in the rolling powder screening part and are used for removing powdered sugar adhered to the candy particles; and the vibrating powder screening part is arranged above the supporting part and is used for screening the candy particles again. According to the roller screen, the disturbance part comprising the twisted disturbance fan blades, the poking piece with the acute angle and the powder sweeping part is arranged in the roller screen drum, and a multi-stage and progressive cleaning path is constructed. When the candies rotate along with the roller screen drum, the candies are firstly lifted by the disturbance fan blades and preliminarily thrown, then the track is changed by the shifting piece to accelerate falling so as to shake off powdered sugar, and finally the candies fall on the flexible bristles of the powder sweeping part, and the bristles can effectively sweep away powder firmly adhered to the surfaces of the candies. Through the multi-stage synergistic effect, the problem that a traditional roller screen is not thorough in cleaning is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of screening technology, and particularly to a powder screening machine. BACKGROUND

[0002] The powder screening machine is a general mechanical equipment for separating, grading, removing impurities or filtering granular or powdered materials according to particle size by using vibration, rotation, rolling or other physical principles through one or more layers of screen with specific aperture.

[0003] In the food industry such as candy, after the candy is cooled and shaped, a layer of sugar powder is sprinkled on the surface to prevent them from sticking to each other. Before packaging, these candies need to pass through the powder screening machine to screen off most of the powder on the surface, leaving only a thin layer of anti-sticking powder. The screening of granular materials is one of the key processes in the production process, aiming to separate the finished product from the excess powder or small particles generated during the production process. For materials with powder easily adhered to the surface, such as coated candy, traditional screening equipment often has difficulty in achieving efficient screening while achieving deep cleaning of the material surface.

[0004] Screening out excess thick powder makes the product look clean and shiny, rather than puffy, and at the same time, avoids the mouth being full of powder when eating, affecting the true flavor. During the production process of candy, some fine particles are also formed and need to be screened out by the powder screening machine.

[0005] The traditional powder screening machine only relies on vibration, rotation or rolling to screen off the sugar powder and fine particles on the surface of the candy, and lacks a comprehensive solution that combines gentle rolling screening with active deep cleaning disturbance and is supplemented by multi-stage fine screening. If the sugar powder on the surface of the candy is thick, it is necessary to increase the rolling time and speed, or increase the vibration amplitude, but the above-mentioned methods are too violent and can easily cause the candy to break due to impact.

[0006] Therefore, there is an urgent need in the art for a screening device that not only can efficiently screen out the powder and debris mixed in the material, but also can actively and effectively remove the powder closely adhered to the surface of the material, while avoiding damage to the material itself. Based on this, the core technical problem actually solved by the present application is how to provide a powder screening machine that can screen more thoroughly, has better cleaning effect and can effectively protect the integrity of the material. SUMMARY

[0007] The main purpose of the present application is to provide a powder screening machine to solve the problems in the related art.

[0008] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a powder screening machine is provided, comprising a support part, further comprising:

[0009] Rolling sieve powder part, rolling sieve powder part is located above support part, when rolling, primary screening of candy particles in rolling sieve powder part can be carried out;

[0010] Disturbance part, the disturbance part is several, all be located in rolling sieve powder part, for removing candy powder adhered to candy particles;

[0011] Vibrating sieve powder part, vibrating sieve powder part is located above support part, and is located on one side of rolling sieve powder part, and candy particles screened after rolling sieve powder part are received, and the candy particles are screened again.

[0012] Further, the support part includes a support frame, a vibrating support and a rolling support, the rolling support is fixedly arranged on the top of the support frame, used for installing the rolling sieve powder part, and the vibrating support is fixedly arranged on one side of the support frame, used for installing the vibrating sieve powder part.

[0013] Further, the rolling sieve powder part includes a rolling sieve cylinder, the side wall of the rolling sieve cylinder is provided with a plurality of sieve holes penetrating through, the front end is fixedly provided with a feeding port, and the rear end is fixedly provided with a discharging port.

[0014] Further, a plurality of annular support ribs are fixedly arranged on the side of the rolling sieve cylinder, and the support ribs are used for installing the disturbance part.

[0015] Further, a plurality of driving wheels and a plurality of supporting wheels are rotatably arranged on the bottom of the rolling support, the plurality of driving wheels are fixedly sleeved on a connecting shaft, and the plurality of supporting wheels are also fixedly sleeved on another connecting shaft.

[0016] Further, a rolling residue discharging box is arranged on the outside of the bottom of the rolling sieve cylinder, the rolling residue discharging box is fixedly connected with the bottom of the rolling support, cover plates are detachably arranged on the front side, the rear side and the top of the rolling support, a feeding hopper is fixedly arranged on the right side of the rolling support, and a discharging hopper is fixedly arranged on the left side of the rolling support.

[0017] Further, the disturbance part includes a support ring and a plurality of disturbance vanes, the support ring is arranged on the inner wall of the support rib through bolts, and the disturbance vanes are fixedly arranged on the inner wall of the support ring in a radial manner.

[0018] Further, a plurality of pokers are fixedly arranged on one side of the disturbance vane, the included angle between the pokers and the disturbance vane is an acute angle, a plurality of powder sweeping parts are arranged below the suspended end of the pokers, and the powder sweeping parts are detachably connected with the disturbance vane.

[0019] Further, the powder sweeping part includes a powder sweeping rod, a powder sweeping ball is fixedly arranged on the end of the powder sweeping rod, a plurality of brush hairs are fixedly arranged on the outer surface of the powder sweeping ball in a radial manner, a retaining ring is fixedly sleeved on the outer circle of the powder sweeping rod, and a first nut is threadedly connected with the outer end of the powder sweeping rod.

[0020] Further, the vibrating screen powder part comprises a vibrating screen installed on a vibrating support, a residue storage groove is arranged at the bottom of the vibrating screen, a residue outlet is arranged at the end of the residue storage groove, and a residue guide groove is fixedly arranged on one side of the vibrating support and opposite to the residue outlet.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The powder screening machine realizes efficient and deep cleaning of the powder adhered to the surface of the candy particles, specifically, a multi-stage and progressive cleaning path is constructed by arranging the disturbance part including the twisted disturbance fan blade, the sharp cornered paddle and the powder sweeping part in the rolling screen cylinder. When the candy rotates with the rolling screen cylinder, it is first lifted and preliminarily scattered by the disturbance fan blade, then changes the trajectory and accelerates to fall by the paddle to shake off the candy powder, and finally falls on the flexible brush of the powder sweeping part. The brush can effectively sweep the powder adhered to the surface. This multi-stage cooperation significantly improves the cleaning ability of the powder adhered to the surface of the candy, especially in the recessed part, and solves the problem of incomplete cleaning of the traditional rolling screen.

[0023] 2. The powder screening machine effectively reduces the breakage rate of the candy while ensuring efficient screening and cleaning, specifically, a multi-stage screening strategy combining rolling screening and vibrating screening is adopted. In the primary screening process, the rotating speed of the rolling screen cylinder is usually slow, and the material mainly moves by gravity and friction force, with small impact force. In particular, the powder sweeping part uses a powder sweeping ball covered with flexible brush to receive the falling candy, which greatly buffers the impact force and provides effective protection for the candy with brittle texture. The subsequent vibrating screening is mainly used to screen out small particles that are not completely separated in the early stage, further ensuring the quality of the finished product. The whole process takes into account the cleaning efficiency and material integrity.

[0024] 3. The powder screening machine improves the sealing and environmental protection of the screening process, specifically, by setting a box structure composed of a rolling residue discharge box, a cover plate, a feeding hopper and a discharge hopper, the working area of the rolling screen cylinder is completely surrounded, effectively preventing the overflow of candy powder during screening, avoiding environmental pollution and raw material waste, and improving the working environment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole schematic diagram of the powder screening machine of the present application;

[0026] Figure 2 It is a rolling powder screening part structure schematic diagram of the powder screening machine of the present application;

[0027] Figure 3 It is a disturbance part structure schematic diagram of the powder screening machine of the present application;

[0028] Figure 4 It is a disturbance fan blade structure schematic diagram of the powder screening machine of the present application;

[0029] Figure 5 Figure 1 is a schematic diagram of the powder sweeping part of the powder screening machine according to the present application;

[0030] Figure 6 Figure 2 is a side view of the rolling powder screening part of the powder screening machine according to the present application;

[0031] Figure 7 Figure 3 is a schematic diagram of the vibrating screen of the powder screening machine according to the present application;

[0032] Figure 8 Figure 4 is a schematic diagram of the height adjustment part of the powder screening machine according to the present application.

[0033] Reference signs:

[0034] 1, support frame; 2, vibrating support; 3, rolling support; 4, mounting frame; 5, vibrating motor; 6, vibrating screen; 7, residue storage groove; 8, rolling screen cylinder; 81, support rib; 82, feed inlet; 83, discharge outlet; 9, disturbance part; 91, support ring; 92, disturbance vane; 93, paddle; 94, powder sweeping part; 941, powder sweeping rod; 942, blocking ring; 943, first nut; 944, powder sweeping ball; 945, brush; 10, residue guide groove; 11, shock absorber; 12, rolling residue discharge box; 13, residue storage drawer; 14, cover plate; 15, feed hopper; 16, discharge hopper; 17, driving wheel; 18, connecting shaft; 19, support wheel; 20, motor; 21, non-slip pad; 22, motor mounting shell; 23, rolling screen cylinder protection cover; 24, threaded rod; 25, second nut; 26, foot pad. DETAILED DESCRIPTION

[0035] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purposes, the specific embodiments, structures, features and effects according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0036] The present embodiment provides a powder screening machine, which is mainly used for screening and cleaning candy particles with sugar powder easily adhered to the surface, but can also be applied to other granular materials with similar properties, such as Figure 1 As shown in the drawings, the powder screening machine mainly includes a support part, a rolling powder screening part, a disturbance part 9 and a vibrating powder screening part.

[0037] The support part constitutes the basic frame of the device. The support part includes a support frame 1, a vibrating support 2 and a rolling support 3. The support frame 1 is usually formed by connecting several vertically arranged legs through cross beams and longitudinal beams to form a stable support platform. The rolling support 3 is fixedly installed on the top of the support frame 1 and is used to mount and support the subsequent rolling powder screening part. The vibrating support 2 is fixedly installed on one side of the support frame 1 and is used to mount and support the subsequent vibrating powder screening part.

[0038] In order to ensure the stability of the device during operation and ensure the screening effect, the bottom of each leg of the support frame 1 is provided with a height adjusting part. By rotating the height adjusting part under each leg, the height of the corresponding leg can be accurately adjusted, so that the entire support frame 1 is in a horizontal state, providing a flat and stable working platform for the rolling sieve powder part and the vibrating sieve powder part.

[0039] Specifically, as shown in Figure 8 The height adjusting part mainly includes a threaded rod 24 and a second nut 25. The second nut 25 is fixedly connected with the lower end of the threaded rod 24 by welding or the like. The lower end of the second nut 25 is rotatably provided with a foot pad 26 through a bearing or the like structure. The bottom end of the threaded rod 24 is inserted into the foot pad 26 and forms a rotating connection with the foot pad 26, so that the threaded rod 24 can rotate freely relative to the foot pad 26. The top end of the threaded rod 24 is screwed into the internal threaded hole in the bottom of the leg, forming a threaded connection with the leg. When the height needs to be adjusted, the operator uses a wrench or the like to hold the second nut 25 and rotate it. Since the second nut 25 is fixed with the threaded rod 24, and the threaded rod 24 is threadedly connected with the leg, rotating the second nut 25 will drive the threaded rod 24 to screw into or out of the leg, thereby achieving the lifting of the leg as a whole. The lower surface of the foot pad 26 is fixedly bonded with a non-slip pad 21. The area of the normal projection of the non-slip pad 21 is designed to be larger than that of the foot pad 26, so as to increase the contact area with the ground and reduce the pressure on the ground, preventing the ground from being damaged under heavy pressure. Preferably, the non-slip pad 21 is made of soft and elastic material, such as rubber or silicone, which not only further prevents damage to the ground, but also increases friction to prevent the device from sliding.

[0040] The rolling sieve powder part is a key component for primary screening and core cleaning. It is arranged above the rolling support 3 of the support part. The rolling sieve powder part mainly includes a rolling sieve cylinder 8. A large number of through sieve holes are formed in the side wall of the rolling sieve cylinder 8, which are used to sieve off sugar powder and small debris during rolling. The shape of the sieve hole is preferably a rounded rectangle, with a width of about 1-3 mm and a length of about 2-3 cm. Compared with a circular hole, the sieve hole of this shape is less likely to be clogged by sugar powder at the same opening rate, ensuring the sustainability of the screening efficiency. The rolling sieve cylinder 8 is installed in an inclined state, with the feed end on the front side higher than the discharge end on the rear side. This inclined arrangement allows the sugar particles inside the rolling sieve cylinder 8 to roll forward from the high end to the low end along the inclined direction under the action of the gravitational component, i.e. from the feed end to the discharge end, and then fall onto the vibrating sieve powder part for vibrating sieving.

[0041] The rotation of the rolling sieve cylinder 8 is realized by a driving mechanism. As shown in Figure 2 the bottom of the rolling support 3, two connecting shafts 18 are rotatably arranged through bearing seats or the like. A plurality of driving wheels 17 are fixedly sleeved on one of the connecting shafts 18, and a plurality of supporting wheels 19 are fixedly sleeved on the other connecting shaft 18. The outer ring of the rolling sieve cylinder 8 is provided with teeth engaging with the driving wheels 17 and the supporting wheels 19, so as to support the rolling sieve cylinder 8 on the wheels. The connecting shaft 18 provided with the driving wheels 17 is connected with the output shaft of a motor 20 fixedly installed on the rolling support 3 through a coupling. In order to protect the motor 20 and isolate the motor 20 from the outside, the motor 20 is installed in a motor installation shell 22, and the motor installation shell 22 is fixedly connected with the rolling support 3. When the motor 20 is started, the connecting shaft 18 is driven to rotate, and then the driving wheels 17 on the connecting shaft 18 are rotated. The driving wheels 17 drive the whole rolling sieve cylinder 8 to stably roll on the driving wheels 17 and the supporting wheels 19 through the engagement of the teeth on the outer ring of the rolling sieve cylinder 8. The supporting wheels 19 mainly play a role in auxiliary support and stable movement.

[0042] As shown in Figure 1 in order to prevent the sugar powder from overflowing during the sieving process and collect the sieved waste materials, a rolling discharge box 12 is arranged outside the bottom of the rolling sieve cylinder 8. The rolling discharge box 12 is fixedly connected with the bottom of the rolling support 3. In addition, as shown in Figure 1 and Figure 6As shown, the cover plates 14 are detachably installed on the front side, rear side and top of the rolling support frame 3 by fasteners such as bolts, and the left and right rolling screen cylinder protective covers 23 are detachably installed on the left and right sides of the rolling support frame 3 by fasteners such as bolts. The right rolling screen cylinder protective cover 23 is provided with a hole through which the feed hopper 15 passes, and the left rolling screen cylinder protective cover 23 is provided with a gap below the position corresponding to the discharge port 83. The candy in the rolling screen cylinder 8 enters the discharge hopper 16 through the gap from the discharge port 83 and finally falls on the vibrating screen 6. The feed hopper 15 is fixedly installed on the right side of the rolling support frame 3, i.e. at the end corresponding to the feed port 82 of the rolling screen cylinder 8. The bottom opening of the feed hopper 15 passes through the hole of the right rolling screen cylinder protective cover 23 and extends into the feed port 82 of the rolling screen cylinder 8 without contacting the rolling screen cylinder 8, so as to ensure that the rolling screen cylinder 8 can rotate freely. The candy can be added into the rolling screen cylinder 8 through the feed hopper 15. The discharge hopper 16 is fixedly installed on the left side of the rolling support frame 3, i.e. at the end corresponding to the discharge port 83 of the rolling screen cylinder 8. The discharge hopper 16 is located below the discharge port 83 of the rolling screen cylinder 8. In this way, the rolling residue discharge box 12, the cover plates 14, the feed hopper 15, the discharge hopper 16 and the rolling screen cylinder protective covers 23 are combined to form a relatively closed box body, which surrounds the rolling screen cylinder 8 and effectively prevents dust from leaking out. The candy powder and fine particles falling from the sieve holes of the rolling screen cylinder 8 fall into the bottom rolling residue discharge box 12. Two residue discharge ports are formed in the bottom of the rolling residue discharge box 12. Below the positions corresponding to the residue discharge ports on the top of the support frame 1, a pull-out type residue storage drawer 13 is provided for receiving and temporarily storing the waste falling from the residue discharge ports, facilitating regular cleaning.

[0043] The disturbance parts 9 are the core of deep cleaning, and a plurality of disturbance parts 9 are uniformly arranged in the interior of the rolling screen cylinder 8. As shown in the figure, Figure 3 The disturbance part 9 is fastened to the support rib 81 of the rolling screen cylinder 8 by the support ring 91 through a bolt, so as to rotate together with the rolling screen cylinder 8. As shown in the figure, Figure 4 Each disturbance part 9 includes a support ring 91 and a plurality of disturbance vanes 92 fixed to the inner wall of the support ring 91. The disturbance vanes 92 are uniformly distributed in a radial manner. In order to effectively scoop up and scatter the candy, the disturbance vanes 92 are designed in a twisted curved surface shape.

[0044] A plurality of push pieces 93 are also fixedly arranged on the side of each disturbance vane 92 facing the rotating direction of the rolling screen cylinder 8, i.e. the side where the candy slides after being scooped up. The included angle between the push piece 93 and the body of the disturbance vane 92 is an acute angle, and in this embodiment, the included angle is preferably 25° to 30°. When the candy slides off the disturbance vane 92, it will hit the push pieces 93, and the push pieces 93 will change the falling trajectory of the candy, making it fall at a steeper angle and at a faster speed. This violent movement helps to shake off the candy powder that is more tightly adhered.

[0045] Below the free end of the poking piece 93, a sweeping part 94 is arranged. The sweeping part 94 is detachably mounted on the disturbing fan blade 92 by screw connection or the like. The specific structure of the sweeping part 94 is shown in Figure 5 It includes a sweeping rod 941. The end of the sweeping rod 941 is fixedly mounted with a sweeping ball 944. The outer surface of the sweeping ball 944 is fixedly provided with a large number of radially distributed soft bristles 945. The bristles 945 can be made of wear-resistant flexible materials such as nylon, prolonging the service life and reducing the damage to the candies. A stop ring 942 is also fixedly sleeved on the sweeping rod 941. The end of the sweeping rod 941 away from the sweeping ball 944 is externally threaded, and a first nut 943 is screwed thereon. The first nut 943 is preferably a nut with anti-loosening function, such as a nylon locking nut, to prevent loosening and falling off during long-term rotation of the tumbling screen cylinder 8. During installation, the sweeping rod 941 is inserted through the pre-set through hole of the disturbing fan blade 92, the stop ring 942 is tightly attached to one side of the disturbing fan blade 92, and then the first nut 943 is tightly screwed on the other side, so that the sweeping part 94 is firmly fixed on the disturbing fan blade 92. The highest point of the sweeping ball 944 and the bristles 945 thereon should be lower than the free end of the upper poking piece 93, so as to ensure that the candies can fall from the poking piece 93 to the bristles 945. The soft bristles 945 can effectively sweep the surface of the candies and buffer the impact of the falling candies, preventing the candies from breaking.

[0046] The vibrating screen part is arranged above the vibration support 2 of the supporting part and on one side of the discharge hopper 16 of the tumbling screen part, for receiving the candy particles after primary screening by the tumbling screen part and performing secondary fine screening. As shown in Figure 7 The vibrating screen part mainly includes a vibrating screen 6. The vibrating screen 6 is fixed on the vibration support 2 by the mounting frames 4 mounted on the front and rear sides thereof. The mesh size of the vibrating screen 6 is generally larger than that of the tumbling screen cylinder 8, for example, it can be set to about 3-5 mm in width and about 4-6 cm in length, mainly for screening out small particles or clumps with slightly larger particle size that are not completely separated in the primary screening. The vibrating screen 6 is also in an inclined state during installation, and the inclination direction is the same as that of the tumbling screen cylinder 8, so that the candies can automatically move to the lower discharge end under the action of vibration.

[0047] A residue storage tank 7 is arranged below the vibrating screen 6, for receiving the small particles falling from the screen holes of the vibrating screen 6. The bottom end of the residue storage tank 7 is provided with a residue discharge port. A residue guide tank 10 is fixedly mounted on the corresponding side of the vibration support 2, and the residue discharge port faces the residue guide tank 10, so that the waste in the residue storage tank 7 can be guided to the designated collection container or area through the residue guide tank 10.

[0048] In order to drive the vibration screen 6 and the residue tank 7 to vibrate at high frequency and small amplitude, a vibration motor 5 is installed on the vibration support 2. In order to reduce the transmission of vibration to the support structure and protect the equipment, a number of shock absorbers 11 are arranged between the mounting bracket 4 and the vibration support 2, which are usually made of elastic materials such as rubber.

[0049] The working process of the sieve powder machine is as follows:

[0050] Firstly, the candy particles to be processed are continuously added to the feed inlet 82 of the rolling sieve cylinder 8 through the feed hopper 15. Start the motor 20 to drive the rolling sieve cylinder 8 to rotate slowly. Since the rolling sieve cylinder 8 is inclined, the candy is lifted to a certain height under the action of the cylinder wall, and then tumbles and slides under the action of gravity, and the whole body moves towards the discharge port 83 at the low place. In this process, smaller sugar powder and debris are sieved out through the sieve holes and fall into the rolling residue discharge box 12, and finally collected in the residue drawer 13.

[0051] At the same time, a plurality of disturbance parts 9 fixed on the inner wall of the rolling sieve cylinder 8 rotate with the cylinder body. When the disturbance part 9 passes through the candy layer, the twisted disturbance fan blade 92 lifts part of the candy. With the continuous rotation of the rolling sieve cylinder 8, the lifted candy slides off the fan blade after reaching a certain height, realizing preliminary scattering. The falling candy hits the paddle 93, which is sharply changed in direction and accelerated to fall, thereby shaking off a large amount of surface sugar powder. Finally, the candy falls on the soft bristles 945 of the powder sweeping ball 944, which not only cushions the impact, but also acts like a brush, deeply into the small recesses on the surface of the candy, and sweeps away the sugar powder adhering firmly. The candy will repeat this lifting, scattering, shaking and brushing cycle multiple times in its journey from the feed inlet 82 to the discharge port 83, so as to achieve a deep and gentle cleaning of the candy surface.

[0052] The candy that has undergone primary screening and deep cleaning is discharged from the discharge port 83 of the rolling sieve cylinder 8 and falls into the high end of the vibration sieve 6 of the vibration sieve powder part through the discharge hopper 16. Start the vibration motor 5, and the vibration sieve 6 and the residue tank 7 start to vibrate at high frequency. The candy jumps forward on the sieve screen under the action of vibration and moves towards the low end of the discharge port. In this process, residual fine particles with a particle size of 3-5 mm or less are further screened out and fall into the residue tank 7 through the sieve holes. The waste in the residue tank 7 flows to the discharge port under the action of vibration and is discharged through the residue guide tank 10. Finally, the clean and qualified candy is discharged from the discharge end of the vibration sieve 6 and enters the next process or packaging link.

[0053] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A powder sieving machine, comprising a support section, characterized in that, Also includes: The rotating powder sieving section is located above the support section. When the rotating powder sieving section rotates, it can perform primary sieving of the candy particles inside. Disturbance section (9), there are several disturbance sections (9), all of which are provided in the rolling powder screen section, used to remove sugar powder adhering to candy particles; The vibrating powder screening section is located above the support section and on one side of the rolling powder screening section. It receives the candy particles after being screened by the rolling powder screening section and screens the candy particles again.

2. The powder screening machine according to claim 1, characterized in that, The support unit includes a support frame (1), a vibration bracket (2) and a rolling bracket (3). The rolling bracket (3) is fixedly installed on the top of the support frame (1) and is used to install the rolling powder screening unit. The vibration bracket (2) is fixedly installed on one side of the support frame (1) and is used to install the vibrating powder screening unit.

3. The powder screening machine according to claim 1, characterized in that, The rotary screen powder section includes a rotary screen cylinder (8), the side wall of which is provided with several through screen holes, the front end is fixedly provided with a feed inlet (82), and the rear end is fixedly provided with a discharge outlet (83).

4. The powder screening machine according to claim 3, characterized in that, The side of the rotary screen cylinder (8) is fixed with several annular support ribs (81), which are used to install the disturbance part (9).

5. The powder screening machine according to claim 2, characterized in that, The bottom of the rolling bracket (3) is provided with a number of driving wheels (17) and a number of supporting wheels (19). The driving wheels (17) are fixedly sleeved on the connecting shaft (18), and the supporting wheels (19) are also fixedly sleeved on another connecting shaft (18).

6. The powder screening machine according to claim 3, characterized in that, The bottom outer side of the rotary screen cylinder (8) is provided with a rotary slag discharge box (12), which is fixedly connected to the bottom of the rotary support (3). The front, rear and top sides of the rotary support (3) are provided with detachable cover plates (14). The right side of the rotary support (3) is fixedly provided with a feed hopper (15), and the left side of the rotary support (3) is fixedly provided with a discharge hopper (16).

7. The powder screening machine according to claim 4, characterized in that, The disturbance part (9) includes a support ring (91) and a disturbance fan blade (92). The support ring (91) is bolted to the inner wall of the support rib (81), and the disturbance fan blade (92) is radially fixed to the inner wall of the support ring (91).

8. The powder screening machine according to claim 7, characterized in that, A number of paddles (93) are fixedly provided on one side of the disturbance fan blade (92). The angle between the paddles (93) and the disturbance fan blade (92) is an acute angle. A number of powder sweeping parts (94) are provided below the suspended end of the paddles (93). The powder sweeping parts (94) are detachably connected to the disturbance fan blade (92).

9. The powder screening machine according to claim 8, characterized in that, The powder sweeping part (94) includes a powder sweeping rod (941), a powder sweeping ball (944) is fixedly provided at the end of the powder sweeping rod (941), a plurality of radially arranged bristles (945) are fixedly provided on the outer surface of the powder sweeping ball (944), a retaining ring (942) is fixedly sleeved on the outer ring of the powder sweeping rod (941), and a first nut (943) is threadedly connected to the outer end of the powder sweeping rod (941).

10. The powder screening machine according to claim 2, characterized in that, The vibrating screen powder section includes a vibrating screen (6), which is mounted on a vibrating support (2). The bottom of the vibrating screen (6) is provided with a slag storage trough (7), and the end of the slag storage trough (7) is provided with a slag outlet. A slag guide trough (10) is fixedly provided on one side of the vibrating support (2), and the slag outlet is directly opposite the slag guide trough (10).

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