A starch sieving and portioning system

Abstract

The utility model provides a kind of starch sieving and portioning system, including first bin, ton bag feeding mechanism is arranged above the feed inlet of first bin;First star type feeder is arranged in the discharge port of first bin;The lower end of first star type feeder is connected with vibrating screen;The discharge port of vibrating screen is connected with vacuum feeding machine by pipeline communication;Second star type feeder is arranged in the discharge port of vacuum feeding machine;The lower end of second star type feeder is communicated with second bin;The discharge port of second bin is connected with screw conveyor with the function of metering, which goes in from top and comes out from bottom;Weighing scale is arranged below screw conveyor for placing hopper and weighing hopper;Driving element and valve contained in above components are electrically connected with controller.The utility model can realize automatic sieving and accurate portioning of starch.

Description

Technical Field

[0001] This utility model belongs to the field of starch conveying, specifically relating to a starch screening and portioning system. Background Technology

[0002] After starch is processed and shaped, it needs to be sieved to prevent clumping and remove impurities, and then weighed for quantitative portioning. Existing technologies suffer from high labor intensity due to manual sieving and weighing; moreover, the dusty environment in the auxiliary material room is problematic. Patent CN218199073U discloses a metering and feeding device for starch production, but it can only measure starch and cannot remove impurities or dust, resulting in a low degree of automation. Summary of the Invention

[0003] This invention provides a starch sieving and portioning system.

[0004] The purpose of this utility model is achieved in the following manner: a starch sieving and portioning system includes a first silo, a ton bag feeding mechanism is provided above the inlet of the first silo; a first star-shaped feeder is provided at the outlet of the first silo; the lower end of the first star-shaped feeder is connected to a vibrating screen; the outlet of the vibrating screen is connected to a vacuum feeder through a pipe; a second star-shaped feeder is provided at the outlet of the vacuum feeder; the lower end of the second star-shaped feeder is connected to a second silo; the outlet of the second silo is connected to a top-in, bottom-out screw conveyor with metering function; a weighing scale for placing and weighing hoppers is provided below the screw conveyor; the drive elements and valves included in the above components are electrically connected to a controller.

[0005] A ton bag auxiliary unloading mechanism is provided above the feed inlet of the first hopper; the ton bag auxiliary unloading mechanism includes two guide plates rotatably disposed above the two sides outside the feed inlet of the first hopper; the guide plates are driven by a first driving mechanism to rotate and open; the two guide plates form a guide opening that is larger at the top and smaller at the bottom at the upper end of the feed inlet; the guide plates swing back and forth to tap the ton bags; the ton bag loading mechanism includes an electric hoist slidably disposed on a track above the first hopper.

[0006] A turbine vibrator is installed on the outer wall of the second silo; a high level sensor and a low level sensor are installed on the second silo; the motor of the screw conveyor is an explosion-proof motor, and the discharge port of the screw conveyor is a pneumatic butterfly valve; the turbine vibrator, high level sensor, low level sensor, explosion-proof motor, and pneumatic butterfly valve are all electrically connected to the controller.

[0007] The vibrating screen is a direct-discharge vibrating screen, which uses an explosion-proof motor and has a single layer of 16-mesh stainless steel screen inside.

[0008] It also includes a steel frame platform and dust removal equipment. The first and second silos are fixed on the steel frame platform. A staircase is set near the feed inlet of the first silo. The dust suction port of the dust removal equipment is set near the discharge outlet of the screw conveyor.

[0009] It also includes a touchscreen that is electrically connected to the controller.

[0010] Compared to existing technologies, this invention uses a vibrating screen to break up clumps and filter impurities from the starch. The screw conveyor is equipped with a metering function; a weighing scale below performs secondary weighing, and the combination of these two methods ensures precise control of the starch feed rate. This invention enables automatic sieving and precise portioning of starch. Attached Figure Description

[0011] Figure 1 This is the front view of this utility model.

[0012] Figure 2 yes Figure 1 Side view (hopper not shown).

[0013] Figure 3 This is a schematic diagram of the hopper, ton bags, and the auxiliary feeding mechanism for the ton bags.

[0014] Figure 4 This is a schematic diagram of a vacuum feeder and a second hopper.

[0015] Among them, 1 is an electric hoist, 2 is the first hopper, 3 is the first star feeder, 4 is a vibrating screen, 5 is a vacuum feeder, 6 is the second star feeder, 7 is the second hopper, 8 is a screw conveyor, 9 is a weighing scale, 10 is a controller, 11 is a guide plate, 12 is the first drive mechanism, 13 is a ton bag, 14 is a turbine vibrator, 15 is a high level sensor, 16 is a low level sensor, 17 is a steel frame platform, 18 is a dust removal device, 19 is a step ladder, 20 is a hopper, 21 is a vacuum pump, and 22 is a starch inlet. Detailed Implementation

[0016] In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application shall have the ordinary meaning understood by those skilled in the art. Terms such as "connected," "linked," "fixed," and "set" shall be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; direct connections or indirect connections via an intermediate medium; mechanical connections or electrical connections. Unless otherwise expressly specified and limited, "above" or "below" a second feature may mean that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," or "over" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "under" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Relational terms such as "first," "second," etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as “center,” “lateral,” “longitudinal,” “length,” “width,” “thickness,” “height,” “front,” “rear,” “left,” “right,” “up,” “down,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” “circumferential,” “clockwise,” and “counterclockwise,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Figure 1-4As shown, a starch sieving and portioning system includes a first silo 2, with a ton bag 13 feeding mechanism installed above the inlet of the first silo 2; a first star-shaped feeder 3 installed at the outlet of the first silo 2; a vibrating screen 4 connected to the lower end of the first star-shaped feeder 3; a vacuum feeder 5 connected to the outlet of the vibrating screen 4 via a pipe; a second star-shaped feeder 6 installed at the outlet of the vacuum feeder 5; a second silo 7 connected to the lower end of the second star-shaped feeder 6; a screw conveyor 8 with metering function connected to the outlet of the second silo 7; and a weighing scale 9 for placing and weighing hoppers 20 below the screw conveyor 8; the drive elements and valves included in the above components are electrically connected to a controller 10. The ton bag 13 feeding mechanism moves the ton bags 13 to the inlet position of the first silo 2, whereby the operator can unpack the ton bags 13, and the starch falls into the first silo 2 by its own weight after unpacking. The first hopper 2 primarily serves to buffer and temporarily store a portion of the starch. The first and second star-shaped feeders 3 and 6 mainly function to uniformly discharge the starch. The vibrating screen 4 can be an existing vibrating screen 4, which can effectively remove impurities. The vacuum feeder 5 is existing equipment, including a vacuum pump 21 or a negative pressure fan. The vacuum pump 21 is connected to the top of the vacuum feeder 5 via an air pipe, creating a negative pressure environment within the vacuum feeder 5. A starch inlet is also provided at the upper end of the vacuum feeder 5, which is connected to the lower outlet of the vibrating screen 4 via a pipe, preferably a stainless steel pipe. A second star-shaped feeder 6 is provided between the vacuum feeder 5 and the second hopper 7, which allows for more precise control of the amount of starch in the second hopper 7. In this invention, all electrical components, such as drive components and valves, are electrically connected to the control controller 10. In this invention, the starch passes through the vibrating screen 4, where vibration breaks up clumps and filters out impurities. The screw conveyor 8 is a model with metering function; the weighing scale 9 installed below performs secondary weighing and metering, and the combination of the two can ensure precise control of the amount of starch fed. This utility model can realize automatic sieving and precise portioning of starch.

[0018] An auxiliary feeding mechanism for ton bags 13 is provided above the feed inlet of the first hopper 2. This auxiliary feeding mechanism includes two guide plates 11 rotatably positioned above the feed inlet on both sides. The guide plates 11 are driven by a first drive mechanism 12 to rotate and open. The two guide plates 11 form a guide opening at the upper end of the feed inlet, wider at the top and narrower at the bottom. The guide plates 11 reciprocate to tap the ton bags 13. The feeding mechanism for ton bags 13 includes an electric hoist 1 slidably mounted on a track above the first hopper 2. The bottom of the ton bag 13 is larger than the feed inlet of the first hopper 2. The guide opening helps the ton bags 13 to be fed into the first hopper 2. Adjusting the angle of the guide plates 11 allows for adjustment of the guide opening angle. The reciprocating swing of the guide plates 11 taps the ton bags 13, accelerating the feeding process. The electric hoist 1 here can be a 2T electric hoist 1. The electric hoist 1 is used to lift the ton bag 13 above the inlet of the first hopper 2, and then unpack it for unloading. Towards the end of the unloading process, the operator can use the electric hoist 1 to lift the ton bag 13 to speed up the starch discharge. Simultaneously, the auxiliary unloading device using the ton bag 13, combined with the electric hoist 1 lifting the ton bag 13 and the ton bag 13 striking device, can completely clean out any remaining starch in the ton bag 13. The first drive mechanism 12 can be a linear drive mechanism such as a hydraulic cylinder or a pneumatic cylinder, with one end installed on the back of the guide plate 11, i.e., the side away from the ton bag 13, and the other end installed on the steel frame platform 17 or other fixed components.

[0019] A turbine vibrator 14 is installed on the outer wall of the second silo 7; a high-level sensor 15 and a low-level sensor 16 are installed on the second silo 7; the motor of the screw conveyor 8 is an explosion-proof motor, and the discharge port of the screw conveyor 8 is a pneumatic butterfly valve; the turbine vibrator, high-level sensor 15, low-level sensor 16, explosion-proof motor, and pneumatic butterfly valve are all electrically connected to the controller 10. When the controller 10 receives a signal from the high-level sensor 15, the vacuum feeder 5 stops feeding. When the controller 10 receives a signal from the low-level sensor 16, the vacuum feeder 5 needs to feed, and the starch enters the second silo 7. The vacuum feeder 5 can be a ZKS-450 vacuum feeder 5. The feeding machine has a power of P=7.5kw and a conveying capacity of 2000-6000kg / h. It features a φ76 quick-connect material inlet. The second hopper 7 has a volume of 1500L (for storing one ton of 13-pack starch). The hopper wall is made of 3mm thick stainless steel, and the cone angle of the hopper is adjusted to 55°. The discharge interface connection size is increased to accelerate the discharge speed. The ZKS-450 vacuum feeding machine 5, the second hopper 7, and other parts in contact with starch are made of 304 stainless steel, with internal polishing and sandblasting treatment. It can be equipped with 142 or more GT25 turbine vibrators. The turbine vibrators can vibrate and clean excess material, preventing material from adhering to the inner wall of the second hopper 7. The vacuum feeding machine 5 provides negative pressure feeding; the second hopper 7 stores starch. An air valve is also installed at the air duct of the vacuum feeding machine 5 to open or close the air duct inlet of the second hopper 7. The second hopper 7 is also equipped with a pulse valve to assist in feeding and simultaneously clean the dust adhering to the outer surface of the filter element, making feeding smoother. These are all existing technologies of the vacuum feeder 5 and will not be described in detail. The air duct of the vacuum feeder 5 is equipped with an iron remover to remove iron filings from the starch. The iron remover can be a pipeline design.

[0020] The vibrating screen 4 is a direct-discharge type, using an explosion-proof motor and an internal single-layer 16-mesh stainless steel screen. The vibrating screen 4 can be a direct-discharge type 4ZS-800, with the equipment support and material contact parts made of 304 stainless steel. The screen frame and vibrating screen 4 are quickly fixed together, facilitating screen replacement. The top center inlet is φ220, equipped with an L=300 flexible connection, and the bottom outlet is a φ76 quick-connect coupling. The entire structure has good sealing performance, preventing dust from flying, and is easy to disassemble and clean both internally and externally.

[0021] The system also includes a steel frame platform 17 and a dust removal device 18. The first silo 2 and the second silo 7 are fixed on the steel frame platform 17. A step ladder 19 is installed near the inlet of the first silo 2. The dust suction port of the dust removal device 18 is located near the outlet of the screw conveyor 8. The step ladder 19 facilitates the unpacking of the ton bags 13 by workers. The overall frame of the steel frame platform 17 is welded from 304 stainless steel, the columns are made of 100*3 square tubing, the platform surface is made of 3mm stainless steel patterned plate, and guardrails and splash guards are installed around it. The dust removal device 18 can use existing technology and equipment, thereby reducing costs.

[0022] It also includes a touchscreen electrically connected to the controller 10. The touchscreen can display loading and unloading buttons to perform loading and unloading actions. The touchscreen can also be used to set the formula and the amount of starch to be dispensed, thereby achieving quantitative dispensing. These control operations can also be completed through the controller 10. These common motor start-up, speed, valve opening and closing, and sensor controls are existing technologies and will not be described in detail.

[0023] In addition, the first hopper 2 can adopt a gourd-mouth structure to minimize dust emissions during the material discharge process. The first hopper 2 can be entirely made of 304 stainless steel with a polished interior. After the ton bag 13 is unpacked, the starch first falls into the first hopper 2, and then enters the vibrating screen 4 through the lower outlet. The first star-shaped feeder 3 can be a stainless steel star-shaped unloader YJDB-08. The first star-shaped feeder 3 effectively controls the speed and amount of starch entering the vibrating screen 4 from the first hopper 2, preventing excessive starch in the vibrating screen 4 from affecting the screening effect. The second star-shaped feeder 6 can control the speed and amount of starch entering the second hopper 7 from the vacuum feeder 5. The screw conveyor 8 can be a DN150 type, with top inlet and bottom outlet, and the outlet is equipped with a φ159 pneumatic quick-install butterfly valve with opening and closing feedback function. The starch conveying capacity is ≥2500kg / h, the effective length of the auger is L=1000, and an explosion-proof variable frequency motor is used. Its main function is to achieve continuous and uniform feeding and to perform metering. The weighing scale 9 can be a 1.5T weighbridge or platform scale. It is easy to clean and has a calibration accuracy of 0.5 kg. Its main function is to interlock with the screw conveyor 8 to control the starch feeding rate, ensuring accurate metering. The hopper 20 can be an automatically moving trolley with drive wheels; it can be moved on a roller or belt by a drive mechanism.

[0024] In practice: When feeding is required: the ton bag 13 is moved by a crane to the top of the inlet of the first hopper 2, and a feeding command is issued via the touch screen (e.g., clicking the feeding button on the touch screen) or the controller 10. The controller 10 activates the first star-shaped feeder 3, the vibrating screen 4, the vacuum pump 21 or negative pressure fan, the second star-shaped feeder 6, and various valves in the feeding channels, such as damper valves and pulse valves, so that the entire first hopper 2 and the second hopper 7 are under negative pressure. After the ton bag 13 is unpacked, it passes through the first hopper 2, the first star-shaped feeder, the vibrating screen 4, the vacuum feeder 5, and the second star-shaped feeder 6 into the second hopper 7. Feeding stops when the entire ton bag 13 is fed or when the starch reaches the high level sensor 15, and all channels and valves are closed. Because of the second star-shaped feeder 6, the starch currently in the vacuum feeder 5 will not fall into the second hopper 7. The starch content in the second hopper 7 is more accurate.

[0025] When discharge is required: Select the starch discharge amount by clicking the formula on the touch screen and then clicking the discharge button, or select the weight of starch to be discharged via the controller 10, and then issue a discharge command. The controller 10 activates the second star-shaped feeder 6 to discharge the starch into the hopper 20 below. Discharge stops after the predetermined amount is reached.

[0026] The technical features of the embodiments described above can be combined in any way, and as long as there is no contradiction in the combination of these technical features, they should all be considered within the scope of this specification. Without departing from the overall concept of this utility model, any equivalent substitutions or modifications made to the technical solution of this utility model, as well as any changes and improvements, should also be considered within the protection scope of this utility model.

Claims

1. A starch sieving and portioning system, characterized in that; The system includes a first hopper, with a ton bag feeding mechanism above the inlet; a first star-shaped feeder at the outlet; a vibrating screen connected to the lower end of the first star-shaped feeder; a vacuum feeder connected to the outlet of the vibrating screen via a pipe; a second star-shaped feeder at the outlet of the vacuum feeder; a second hopper connected to the lower end of the second star-shaped feeder; a top-in, bottom-out screw conveyor with metering function connected to the outlet of the second hopper; a weighing scale for placing and weighing hoppers below the screw conveyor; and drive components and valves included in the starch sieving and portioning system are electrically connected to a controller.

2. The starch sieving and portioning system according to claim 1, characterized in that; A ton bag auxiliary unloading mechanism is provided above the feed inlet of the first hopper; the ton bag auxiliary unloading mechanism includes two guide plates rotatably disposed above the two sides outside the feed inlet of the first hopper; the guide plates are driven by a first driving mechanism to rotate and open; the two guide plates form a guide opening that is larger at the top and smaller at the bottom at the upper end of the feed inlet; the guide plates swing back and forth to tap the ton bags; the ton bag loading mechanism includes an electric hoist slidably disposed on a track above the first hopper.

3. The starch sieving and portioning system according to claim 1, characterized in that: A turbine vibrator is installed on the outer wall of the second silo; a high level sensor and a low level sensor are installed on the second silo; the motor of the screw conveyor is an explosion-proof motor, and the discharge port of the screw conveyor is a pneumatic butterfly valve; the turbine vibrator, high level sensor, low level sensor, explosion-proof motor, and pneumatic butterfly valve are all electrically connected to the controller.

4. The starch sieving and portioning system according to claim 1, characterized in that: The vibrating screen is a direct-discharge vibrating screen, which uses an explosion-proof motor and has a single-layer 16-mesh stainless steel screen inside.

5. A starch sieving and portioning system according to any one of claims 1-4, characterized in that: It also includes a steel frame platform and dust removal equipment. The first and second silos are fixed on the steel frame platform. A staircase is set near the feed inlet of the first silo. The dust suction port of the dust removal equipment is set near the discharge outlet of the screw conveyor.

6. A starch sieving and portioning system according to any one of claims 1-4, characterized in that: It also includes a touchscreen that is electrically connected to the controller.

Images