Multi-stage dehydration device for starch production
By employing a multi-stage dehydration device with grading and protection design, combined with a servo motor and cylinder-driven rotary extrusion method, the problem of high filter cake moisture content in existing technologies has been solved, achieving rapid and thorough dehydration of starch and safe and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-24
AI Technical Summary
In existing starch production, when plate and frame filter presses are used for dewatering, there is a problem of high moisture content in the filter cake. Furthermore, as the filter cake thickens, the resistance to water penetration increases, resulting in incomplete dewatering.
The device employs a multi-stage dehydration system, including a grading device and protective components. A servo motor drives the filter frame to rotate and throw out water, while a cylinder drives the clamping plate to squeeze the starch. Dehydration is carried out in stages, and the combination of centrifugal force and extrusion force accelerates the removal of water.
It achieves faster and more thorough starch dehydration, reduces dehydration time, lowers starch moisture content, improves production efficiency, and reduces water splashing and safety hazards.
Smart Images

Figure CN224034193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starch production technology, and in particular to a multi-stage dehydration device for starch production. Background Technology
[0002] Starch is a polysaccharide carbohydrate widely found in plants and is an important form of energy storage in plants. It is commonly found in foods such as grains, tubers, and beans. It is composed of numerous glucose molecules and usually appears as a white powder, odorless and tasteless. Dehydration is a key step in starch production and processing. After starch extraction, the starch slurry containing a large amount of water needs to be dehydrated to improve its purity and stability.
[0003] Existing technologies include, for example, the utility model with publication number CN220405963U. This utility model relates to the field of starch processing, specifically a starch dewatering machine, including a collection tank, a dewatering mechanism, and a pumping mechanism. In actual production, when starch slurry needs to be dewatered, the starch slurry can be placed into the dewatering mechanism beforehand. Then, the dewatering mechanism is operated to rotate and centrifuge the starch slurry. Subsequently, the wastewater flows into the lower part of the collection tank for sedimentation, and the starch residue in the wastewater settles to the lower part of the collection tank. Then, the pumping mechanism is operated to pump the separated water into the main pipe. The opening and closing of the pumping pipe is controlled by the first valve body inside the pumping pipe, enabling staged pumping. The water is then discharged through the drain pipe. The obtained starch can be discharged through the discharge port to the outside of the device for collection and reuse. This allows for more convenient and efficient starch dewatering, reduces starch loss, increases product production volume, and reduces production costs.
[0004] However, most starches are currently dehydrated using plate and frame filter presses. Although this can remove moisture to some extent, for fine materials like starch, there is a problem of high moisture content in the filter cake. This is because the pressure distribution in the plate and frame filter press is uneven, and in the later stages of filtration, as the filter cake thickens, the resistance to water penetration increases, resulting in incomplete dehydration. Utility Model Content
[0005] The purpose of this invention is to solve the problem that in the existing technology, most starch is dehydrated using plate and frame filter presses. Although this can remove moisture to a certain extent, for fine materials like starch, there is a problem of high moisture content in the filter cake. This is because the pressure distribution of the plate and frame filter press is uneven, and in the later stages of filtration, as the filter cake thickens, the resistance to water penetration increases, leading to incomplete dehydration. Therefore, this invention proposes a multi-stage dehydration device for starch production.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a multi-stage dehydration device for starch production, comprising a frame and a grading device. A base is fixedly connected to the lower surface of the frame. The grading device is disposed within the inner wall of the frame. The grading device includes a filter screen frame disposed within the inner wall of the frame. Hollow sleeves are fixedly connected to both ends of the filter screen frame, and the hollow sleeves are rotatably connected to the frame. An outlet is opened on one side of the filter screen frame. A sealing cap is threadedly connected to the inner wall of the outlet of the filter screen frame. A ring is fixedly connected to the surface of the filter screen frame. A servo motor is fixedly connected to the lower surface of the frame. A rocker arm is fixedly connected to the drive end through the frame. The rocker arm is rotatably connected to the frame, and a wheel is fixedly connected to the surface of the rocker arm. A water outlet is opened on one side of the frame, and a valve is fixedly installed on the surface of the water outlet on one side of the frame. By setting a grading device, the servo motor drives the filter screen frame to rotate rapidly, which can quickly throw out a large amount of water from the starch under the action of centrifugal force. This is the first stage of dehydration. On this basis, the cylinder drives the telescopic rod to drive the clamping plate to continuously squeeze the starch. This is the second stage of dehydration. The two different dehydration processes can remove the water from the starch in stages and more quickly, saving the time required for dehydration compared to a single dehydration method.
[0007] Preferably, a belt is fitted onto the surface of the wheel, with one end of the belt away from the wheel fitted onto a ring. By setting the wheel, when the servo motor drives the rocker arm to rotate, the rocker arm rotates, causing the wheel to rotate. The rotation of the wheel drives the belt, which in turn pulls the ring to rotate, thereby causing the filter screen frame connected to the ring to rotate rapidly, so as to achieve the purpose of shaking out the water from the starch.
[0008] Preferably, a support is fixedly connected to one side of the frame, and a cylinder is fixedly connected to the surface of the support. The driving end of the cylinder passes through the support and is fixedly connected to a telescopic rod. By setting the cylinder, the function of the cylinder is to drive the telescopic rod to drive the clamping plate to continuously squeeze the starch, thereby fully discharging the water in the starch, assisting in completing the starch dehydration process, improving the dehydration effect and efficiency, and further reducing the water content in the starch by rotating and throwing water with the filter screen frame.
[0009] Preferably, a sealing ring is fixedly connected to the surface of the telescopic rod. The sealing ring is located in the inner wall of the hollow sleeve and is rotatably connected to the hollow sleeve. By setting the sealing ring, when the filter frame rotates, the hollow sleeve rotates along the sealing ring, while the sealing ring itself remains stationary and seals the hollow sleeve, thereby reducing the leakage of starch from the hollow sleeve during the dehydration process and ensuring the normal operation of the dehydration process.
[0010] Preferably, the end of the telescopic rod away from the cylinder passes through the filter screen frame and is fixedly connected to a clamp. There are two clamps, which are arranged symmetrically. By setting the clamps, while the filter screen frame rotates, the cylinder drives the telescopic rod to continuously squeeze the starch, thereby fully expelling the water from the starch and improving the dehydration effect of the starch.
[0011] Preferably, the upper surface of the frame is provided with a protective component, the protective component including a slot, the slot being formed on the surface of the frame, the upper surface of the frame is provided with a lid, the surface of the lid is fixedly connected with transparent glass, and the lower surface of the lid is fixedly connected with a rod. By providing the protective component, the splashing of water during the dehydration process can be reduced, avoiding the inconvenience and safety hazards caused by water splashing everywhere, while also keeping the work area dry and clean.
[0012] Preferably, the insert rod is inserted into the slot, and a pull rod is fixedly connected to the upper surface of the box cover. By setting the insert rod, when the starch is dehydrated, the box cover is fitted onto the frame, and the insert rod is inserted into the slot, so that a stable connection structure is formed between the box cover and the frame. This ensures that the protective components can play a stable role during the dehydration process and prevents the box cover from loosening or shifting during equipment operation, thereby maintaining the normal operation of the entire dehydration device.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, by setting up a grading device, during use, starch slurry is poured into the filter frame through the outlet, and the outlet is sealed with a sealing cap. Then, the servo motor is started, and the servo motor drives the rocker arm to rotate. The rotation of the rocker arm drives the wheel to rotate, and the rotation of the wheel drives the belt. The belt pulls the ring to rotate, and the rotation of the ring drives the filter frame to rotate rapidly. During the rotation, the water in the starch is thrown out. Since the filter screen in the filter frame is relatively fine, it blocks the starch in the filter frame and drains the water. While the filter frame is rotating, the cylinder drives the telescopic rod to continuously move the clamping plate. The starch is squeezed to remove excess water. As the filter frame rotates, the hollow sleeve rotates along the sealing ring, which remains stationary and seals the hollow sleeve, reducing starch leakage. By incorporating a grading device, a servo motor drives the filter frame to rotate rapidly, quickly expelling a large amount of water from the starch under centrifugal force. This is the first stage of dehydration. Following this, a cylinder drives a telescopic rod to continuously squeeze the starch using clamps. This is the second stage of dehydration. These two different dehydration processes remove water from the starch in stages and more quickly, saving time compared to a single dehydration method.
[0015] 2. In this utility model, by setting a protective component, when dehydrating starch, the lid is fitted onto the frame, the rod is inserted into the slot, and the dehydration process can be observed through the transparent glass. This reduces the splashing of water during dehydration. Pulling the lever can remove the lid. By setting the protective component, the splashing of water during the dehydration process can be reduced, avoiding the inconvenience and safety hazards caused by water splashing everywhere, while also keeping the work area dry and clean. Attached Figure Description
[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a multi-stage dehydration device for starch production;
[0017] Figure 2 This utility model provides a cross-sectional structural diagram of a multi-stage dehydration device for starch production;
[0018] Figure 3 This utility model provides a schematic diagram of the clamping plate structure of a multi-stage dehydration device for starch production;
[0019] Figure 4 This utility model proposes a multi-stage dehydration device for starch production. Figure 3 A magnified structural diagram at point A;
[0020] Figure 5 This utility model presents a partial structural schematic diagram of a multi-stage dehydration device for starch production.
[0021] Legend: 1. Frame; 2. Base; 3. Grading device; 31. Filter screen frame; 32. Ring; 33. Protective component; 331. Box cover; 332. Pull rod; 333. Insert rod; 334. Slot; 335. Transparent glass; 34. Belt; 35. Wheel; 36. Rocker arm; 37. Servo motor; 38. Cylinder; 39. Clamping plate; 310. Telescopic rod; 311. Sealing ring; 312. Hollow sleeve; 313. Bracket; 314. Valve; 315. Sealing cover. Detailed Implementation
[0022] Please see Figures 1-5 This utility model provides a technical solution: a multi-stage dehydration device for starch production, including a frame 1 and a grading device 3. A base 2 is fixedly connected to the lower surface of the frame 1, and the grading device 3 is disposed in the inner wall of the frame 1.
[0023] In this embodiment: the grading device 3 includes a filter frame 31, which is disposed in the inner wall of the frame 1. Hollow sleeves 312 are fixedly connected to both ends of the filter frame 31, and the hollow sleeves 312 are rotatably connected to the frame 1. An outlet is opened on one side of the filter frame 31, and a sealing cap 315 is threadedly connected to the inner wall of the outlet of the filter frame 31. A ring 32 is fixedly connected to the surface of the filter frame 31. A servo motor 37 is fixedly connected to the lower surface of the frame 1. The drive end of the servo motor 37 passes through the frame 1 and is fixedly connected to a rocker arm 36. The rocker arm 36 is rotatably connected to the frame 1, and the surface of the rocker arm 36 is fixedly connected to the frame 1. A wheel 35 is fixedly connected to the frame 1, and a water outlet is opened on one side of the frame 1. A valve 314 is fixedly installed on the surface of the water outlet on one side of the frame 1. By setting a grading device 3, the servo motor 37 drives the filter screen frame 31 to rotate rapidly, which can quickly throw out a large amount of water from the starch under the action of centrifugal force. This is the first stage of dehydration. On this basis, the cylinder 38 drives the telescopic rod 310 to drive the clamping plate 39 to continuously squeeze the starch. This is the second stage of dehydration. The two different dehydration processes can remove the water from the starch in stages and more quickly. Compared with a single dehydration method, it saves the time required for dehydration.
[0024] Specifically, a belt 34 is fitted onto the surface of the wheel 35. The end of the belt 34 away from the wheel 35 is fitted onto the ring 32. By setting the wheel 35, when the servo motor 37 drives the rocker arm 36 to rotate, the rocker arm 36 rotates and drives the wheel 35 to rotate. The rotation of the wheel 35 drives the belt 34, which in turn pulls the ring 32 to rotate, thereby causing the filter screen frame 31 connected to the ring 32 to rotate rapidly, so as to achieve the purpose of shaking out the water in the starch.
[0025] Specifically, a bracket 313 is fixedly connected to one side of the frame 1, and a cylinder 38 is fixedly connected to the surface of the bracket 313. The driving end of the cylinder 38 passes through the bracket 313 and is fixedly connected to a telescopic rod 310. By setting the cylinder 38, the function of the cylinder 38 is to drive the telescopic rod 310 to drive the clamping plate 39 to continuously squeeze the starch, thereby fully expelling the water in the starch, assisting in completing the starch dehydration process, improving the dehydration effect and efficiency, and further reducing the water content in the starch by rotating and throwing water with the filter screen frame 31.
[0026] Specifically, a sealing ring 311 is fixedly connected to the surface of the telescopic rod 310. The sealing ring 311 is located in the inner wall of the hollow sleeve 312. The sealing ring 311 is rotatably connected to the hollow sleeve 312. By setting the sealing ring 311, when the filter frame 31 rotates, the hollow sleeve 312 rotates along the sealing ring 311. The sealing ring 311 itself remains stationary and seals the hollow sleeve 312, thereby reducing the leakage of starch from the hollow sleeve 312 during the dehydration process and ensuring the normal operation of the dehydration process.
[0027] Specifically, the end of the telescopic rod 310 away from the cylinder 38 passes through the filter screen frame 31 and is fixedly connected to a clamping plate 39. There are two clamping plates 39, which are arranged symmetrically. By setting the clamping plates 39, while the filter screen frame 31 rotates, the cylinder 38 drives the telescopic rod 310 to drive the clamping plates 39 to continuously squeeze the starch, thereby fully expelling the water from the starch and improving the dehydration effect of the starch.
[0028] Specifically, a protective component 33 is provided on the upper surface of the frame 1. The protective component 33 includes a slot 334, which is opened on the surface of the frame 1. A box cover 331 is provided on the upper surface of the frame 1. A transparent glass 335 is fixedly connected to the surface of the box cover 331. A plug rod 333 is fixedly connected to the lower surface of the box cover 331.
[0029] In this embodiment, by setting up the protective component 33, the splashing of water during the dehydration process can be reduced, avoiding the inconvenience and safety hazards caused by water splashing everywhere, while also keeping the work area dry and clean.
[0030] Specifically, the insertion rod 333 is inserted into the slot 334, and the upper surface of the cover 331 is fixedly connected to the pull rod 332.
[0031] In this embodiment: by setting the insertion rod 333, when the starch is dehydrated, the box cover 331 is fitted onto the frame 1, and the insertion rod 333 is inserted into the slot 334, so that a stable connection structure is formed between the box cover 331 and the frame 1, ensuring that the protective component 33 can play a stable role in the dehydration process, preventing the box cover 331 from loosening or shifting during equipment operation, thereby maintaining the normal operation of the entire dehydration device.
[0032] Working principle: By setting up the grading device 3, during use, starch slurry is poured into the filter frame 31 through the outlet, and the outlet is sealed by the sealing cap 315. Then, the servo motor 37 is started, which drives the rocker arm 36 to rotate. The rotation of the rocker arm 36 drives the wheel 35 to rotate, which in turn drives the belt 34. The belt 34 pulls the ring 32 to rotate, which in turn drives the filter frame 31 to rotate rapidly. During the rotation, the water in the starch is thrown out. Since the filter screen in the filter frame 31 is relatively fine, it blocks the starch in the filter frame 31, while the water is discharged. At the same time as the filter frame 31 rotates, the cylinder 38 drives the telescopic rod 310 to move the clamping plate. The starch is continuously squeezed by the filter screen frame 39 to fully remove the water. When the filter screen frame 31 rotates, the hollow sleeve 312 rotates along the sealing ring 311. The sealing ring 311 remains stationary and seals the hollow sleeve 312, reducing starch leakage. By setting the grading device 3, the servo motor 37 drives the filter screen frame 31 to rotate rapidly, which can quickly throw out a large amount of water from the starch under the action of centrifugal force. This is the first stage of dehydration. On this basis, the cylinder 38 drives the telescopic rod 310 to drive the clamping plate 39 to continuously squeeze the starch. This is the second stage of dehydration. The two different dehydration processes can remove the water from the starch in stages and more quickly. Compared with a single dehydration method, it saves the time required for dehydration.
[0033] By setting up the protective component 33, when dehydrating starch, the lid 331 is fitted onto the frame 1, the insert rod 333 is inserted into the slot 334, and the dehydration process can be observed through the transparent glass 335, thus reducing the splashing of water during dehydration. Pulling the lever 332 can remove the lid 331. By setting up the protective component 33, the splashing of water during the dehydration process can be reduced, avoiding the inconvenience and safety hazards caused by water splashing everywhere, while also keeping the work area dry and clean.
Claims
1. A multi-stage dehydration device for starch production, comprising a frame (1) and a grading device (3), characterized in that: A base (2) is fixedly connected to the lower surface of the frame (1). The grading device (3) is disposed in the inner wall of the frame (1). The grading device (3) includes a filter frame (31). The filter frame (31) is disposed in the inner wall of the frame (1). Hollow sleeves (312) are fixedly connected to both ends of the filter frame (31). The hollow sleeves (312) are rotatably connected to the frame (1). An outlet is provided on one side of the filter frame (31). A sealing cap (3) is threadedly connected to the inner wall of the outlet of the filter frame (31). 15) A ring (32) is fixedly connected to the surface of the filter frame (31), a servo motor (37) is fixedly connected to the lower surface of the frame (1), the drive end of the servo motor (37) passes through the frame (1) and is fixedly connected to a rocker arm (36), the rocker arm (36) is rotatably connected to the frame (1), a wheel (35) is fixedly connected to the surface of the rocker arm (36), a water outlet is opened on one side of the frame (1), and a valve (314) is fixedly installed on the surface of the water outlet on one side of the frame (1).
2. The multi-stage dehydration device for starch production according to claim 1, characterized in that: The surface of the wheel (35) is fitted with a belt (34), and the end of the belt (34) away from the wheel (35) is fitted with a ring (32).
3. The multi-stage dehydration device for starch production according to claim 1, characterized in that: A bracket (313) is fixedly connected to one side of the frame (1), and a cylinder (38) is fixedly connected to the surface of the bracket (313). The driving end of the cylinder (38) passes through the bracket (313) and is fixedly connected to a telescopic rod (310).
4. The multi-stage dehydration device for starch production according to claim 3, characterized in that: A sealing ring (311) is fixedly connected to the surface of the telescopic rod (310). The sealing ring (311) is located in the inner wall of the hollow sleeve (312). The sealing ring (311) is rotatably connected to the hollow sleeve (312).
5. A multi-stage dehydration device for starch production according to claim 4, characterized in that: The end of the telescopic rod (310) away from the cylinder (38) passes through the filter screen frame (31) and is fixedly connected to a clamping plate (39). There are two clamping plates (39), which are arranged symmetrically.
6. The multi-stage dehydration device for starch production according to claim 1, characterized in that: The upper surface of the frame (1) is provided with a protective component (33), the protective component (33) includes a slot (334), the slot (334) is opened on the surface of the frame (1), the upper surface of the frame (1) is provided with a box cover (331), the surface of the box cover (331) is fixedly connected with a transparent glass (335), and the lower surface of the box cover (331) is fixedly connected with a plug (333).
7. A multi-stage dehydration device for starch production according to claim 6, characterized in that: The insertion rod (333) is inserted into the slot (334), and the upper surface of the box cover (331) is fixedly connected to the pull rod (332).
Citation Information
Patent Citations
Starch dehydrator
CN220405963U