An adjustable flow rate starch slurry pumping pipeline device

Abstract

This utility model relates to the technical field of starch processing equipment, specifically to an adjustable flow rate starch slurry pumping pipeline device. It includes two symmetrically arranged main pipe bodies. A connecting pipe is fixedly installed on one side of each main pipe body near the point between them. An adjusting pipe connects the two connecting pipes. Each connecting pipe contains several first connecting rods, and the adjusting pipe contains several retractable second connecting rods. This utility model achieves stepless flow rate adjustment by arranging symmetrical main pipe bodies, connecting pipes, and an adjustable-diameter silicone rubber adjusting pipe, and by utilizing the hinged first connecting rods and retractable second connecting rods to form a linkage structure. When the adjusting mechanism drives the second connecting rods to extend or retract, the diameter of the adjusting pipe changes synchronously, thereby changing the flow cross-sectional area of ​​the pipeline and achieving precise control of the starch slurry flow rate.

Description

Technical Field

[0001] This utility model relates to the technical field of starch processing equipment, specifically to an adjustable flow rate starch slurry pumping pipeline device. Background Technology

[0002] In the starch processing production process, the conveying of starch slurry is one of the key links, and the accuracy of its flow control directly affects the product quality and production efficiency of subsequent processing steps (such as starch separation, dehydration, drying, etc.).

[0003] Currently, the commonly used flow regulation methods in starch slurry pumping pipeline systems mainly include the following: First, using traditional valves (such as gate valves and ball valves) for regulation. The valve disc is in direct contact with the starch slurry. After long-term use, the valve disc is prone to jamming due to starch particle deposition, resulting in a decrease in regulation accuracy. In addition, the valve has high local resistance, which can easily cause pressure loss in starch slurry delivery. Second, using a multi-section pipeline switching method, the flow can be coarsely adjusted by replacing short pipes of different diameters. However, the switching process requires interrupting production, which is cumbersome and cannot meet the needs of continuous production.

[0004] In view of this, we propose a starch slurry pumping pipeline device with adjustable flow rate. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a starch slurry pumping pipeline device with adjustable flow rate.

[0006] The technical solution of this utility model is:

[0007] An adjustable flow rate starch slurry pumping pipeline device includes two symmetrically arranged main pipeline bodies. A connecting pipe is fixedly installed on one side of each main pipeline body near the center. An adjusting pipe connects the two connecting pipes. Each connecting pipe contains several first connecting rods, and the adjusting pipe contains several retractable second connecting rods. The two ends of the first connecting rods are hinged to the second connecting rods and the main pipeline body, respectively. An adjusting mechanism for adjusting the diameter of the adjusting pipe is located on its outer side. The adjusting mechanism includes a fixing ring, on which several radially arranged adjusting screws are slidably mounted. These adjusting screws are fixed at the midpoints of the second connecting rods. Both the connecting pipes and the adjusting pipe are made of silicone rubber. By arranging the symmetrical main pipeline bodies, connecting pipes, and adjustable-diameter silicone rubber adjusting pipes, and utilizing the hinged first connecting rods and retractable second connecting rods to form a linkage structure, stepless flow rate adjustment is achieved. When the adjusting mechanism drives the second connecting rods to extend or retract, the diameter of the adjusting pipe changes synchronously, thereby changing the flow cross-sectional area of ​​the pipeline and achieving precise control of the starch slurry flow rate. The silicone rubber material combines good elasticity (allowing for diameter changes), corrosion resistance (adapting to the chemical properties of starch slurry), and abrasion resistance (reducing wear on pipelines from particulate media). Meanwhile, the hinged structure ensures a smooth and recoverable adjustment process, preventing pipeline deformation and failure. It should be noted that the second connecting rod consists of an outer sleeve and an inner rod slidably installed inside the sleeve.

[0008] As a preferred technical solution, a flange is welded and fixed to the outer circumference of each of the two main pipe bodies at the end furthest from the connecting pipe. The flange provides a standardized connection interface for the device, facilitating quick assembly or disassembly with the starch slurry pump.

[0009] As a preferred technical solution, several support rods arranged in a circular array are fixed to the outer walls of both sides of the fixed ring. The ends of the support rods away from the fixed ring are welded and fixed to the flange. The fixed ring and the flange are rigidly connected by the support rods to form a stable support structure. This design enhances the stability of the adjustment mechanism, avoids the fixed ring from shifting or shaking due to uneven force during adjustment, thereby ensuring the radial movement accuracy of the adjusting screw and improving the reliability and repeatability of flow regulation.

[0010] As a preferred technical solution, a plurality of drive gears are rotatably mounted on the outer circumference of the fixed ring, and the inner ring wall of the drive gears is threadedly connected to the outer circumference of the adjusting screw. By rotating the drive gears, the radial displacement of the adjusting screw can be precisely controlled, thereby adjusting the extension and retraction length of the second connecting rod and the diameter of the adjusting tube.

[0011] As a preferred technical solution, a movable ring is rotatably mounted on the outer circumference of the fixed ring. A toothed ring is welded to the outer wall of the movable ring near the drive gear, and the toothed ring meshes with the adjusting gear. When the movable ring rotates, the toothed ring drives all drive gears to rotate synchronously, causing multiple adjusting screws to move radially at the same speed, ensuring uniform change in the circumferential diameter of the adjusting tube.

[0012] As a preferred technical solution, a motor frame is fixedly mounted on the outer circumference of the fixed ring, and an adjusting motor is fixedly mounted on the motor frame. A drive gear is coaxially fixed on the output shaft of the adjusting motor, and the drive gear meshes with the gear ring. The combination of the adjusting motor and the drive gear realizes automated control of flow regulation.

[0013] As a preferred technical solution, a plurality of connecting blocks are fixed to the outer circumference of the regulating tube, and the connecting blocks are respectively located outside each second connecting rod. The setting of the connecting blocks enhances the connection strength between the regulating tube and the second connecting rod, ensuring that the two will not separate during frequent adjustments. Since the regulating tube will generate circumferential stress when its diameter changes, the connecting blocks can disperse the stress, prevent the silicone rubber material from tearing due to excessive local stress, and extend the service life of the regulating tube.

[0014] As a preferred technical solution, each main pipe body is fixedly connected to a base at its bottom. The base provides stable support for the entire device, reducing pipe vibration and displacement.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention achieves stepless flow regulation of the pipeline by setting up a symmetrical main pipe body, connecting pipe, and adjustable-diameter silicone rubber regulating pipe, and by utilizing a hinged first connecting rod and a telescopic second connecting rod to form a linkage structure. When the regulating mechanism drives the second connecting rod to extend or retract, the diameter of the regulating pipe changes synchronously, thereby changing the flow cross-sectional area of ​​the pipeline and achieving the purpose of precisely controlling the flow rate of starch slurry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting pipe, adjusting pipe, and adjusting mechanism in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the connecting pipe and the regulating pipe in this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustment mechanism in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Main pipe body; 10. Flange; 2. Adjusting mechanism; 20. Fixed ring; 21. Moving ring; 22. Adjusting gear; 23. Adjusting screw; 24. Motor frame; 25. Adjusting motor; 26. Drive gear; 3. Connecting pipe; 30. First connecting rod; 4. Adjusting pipe; 40. Second connecting rod; 41. Connecting block; 5. Support rod; 6. Base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] An adjustable flow rate starch slurry pumping pipeline device includes two symmetrically arranged main pipeline bodies 1. A connecting pipe 3 is fixedly installed on one side of each main pipeline body 1 near the point between them. An adjusting pipe 4 connects the two connecting pipes 3. Each connecting pipe 3 contains several first connecting rods 30, and the adjusting pipe 4 contains several retractable second connecting rods 40. The two ends of the first connecting rods 30 are hinged to the second connecting rods 40 and the main pipeline body 1, respectively. An adjusting mechanism 2 for adjusting the diameter of the adjusting pipe 4 is provided on its outer side. The adjusting mechanism 2 includes a fixing ring 20, on which several radially arranged adjusting screws 23 are slidably mounted. The adjusting screws 23 are fixed at the midpoints of the second connecting rods 40. Both the connecting pipes 3 and the adjusting pipe 4 are made of silicone rubber. By arranging the symmetrical main pipeline bodies 1, connecting pipes 3, and adjustable-diameter silicone rubber adjusting pipes 4, and utilizing the hinged first connecting rods 30 and retractable second connecting rods 40 to form a linkage structure, stepless adjustment of the pipeline flow rate is achieved. When the regulating mechanism 2 drives the second connecting rod 40 to extend or retract, the diameter of the regulating pipe 4 changes synchronously, thereby altering the flow cross-sectional area of ​​the pipe and achieving precise control of the starch slurry flow rate. The silicone rubber material possesses excellent elasticity (allowing for diameter changes), corrosion resistance (adapting to the chemical properties of starch slurry), and wear resistance (reducing wear on the pipe from particulate media). Simultaneously, the hinged structure ensures a smooth and recoverable adjustment process, preventing pipe deformation and failure. It should be noted that the second connecting rod 40 consists of an outer sleeve and an inner rod slidably installed inside the sleeve.

[0026] In a preferred embodiment, a flange 10 is welded and fixed to the outer circumference of each of the two main pipe bodies 1 at the end furthest from the connecting pipe 3. The flange 10 provides a standardized connection interface for the device, facilitating quick assembly or disassembly with the starch slurry pump.

[0027] In a preferred embodiment, several support rods 5 arranged in a circular array are fixed to the outer walls of both sides of the fixed ring 20. The end of the support rod 5 away from the fixed ring 20 is welded and fixed to the flange 10. The fixed ring 20 and the flange 10 are rigidly connected by the support rods 5 to form a stable support structure. This design enhances the stability of the adjusting mechanism 2, avoids the fixed ring 20 from shifting or shaking due to uneven force during the adjustment process, thereby ensuring the radial movement accuracy of the adjusting screw 23 and improving the reliability and repeatability of flow regulation.

[0028] In a preferred embodiment, a plurality of drive gears 26 are rotatably mounted on the outer circumference of the fixed ring 20, and the inner ring wall of the drive gears 26 is threadedly connected to the outer circumference of the adjusting screw 23. By rotating the drive gears 26, the radial displacement of the adjusting screw 23 can be precisely controlled, thereby adjusting the extension length of the second connecting rod 40 and the diameter of the adjusting tube 4.

[0029] In a preferred embodiment, a movable ring 21 is rotatably mounted on the outer circumference of the fixed ring 20. A toothed ring is welded to the outer wall of the movable ring 21 near the drive gear 26, and the toothed ring meshes with the adjusting gear 22. When the movable ring 21 rotates, the toothed ring drives all the drive gears 26 to rotate synchronously, causing multiple adjusting screws 23 to move radially at the same speed, ensuring that the circumferential diameter of the adjusting tube 4 changes uniformly.

[0030] In a preferred embodiment, a motor frame 24 is fixedly mounted on the outer circumference of the fixed ring 20. An adjusting motor 25 is fixedly mounted on the motor frame 24. A drive gear 26 is coaxially fixed to the output shaft of the adjusting motor 25, and the drive gear 26 meshes with the gear ring. The combination of the adjusting motor 25 and the drive gear 26 realizes automated control of flow regulation.

[0031] In a preferred embodiment, a plurality of connecting blocks 41 are fixed to the outer circumference of the adjusting tube 4, and the connecting blocks 41 are respectively located outside each second connecting rod 40. The connection blocks 41 enhance the connection strength between the adjusting tube 4 and the second connecting rod 40, ensuring that the two will not separate during frequent adjustments. Since the adjusting tube 4 generates circumferential stress when its diameter changes, the connecting blocks 41 can disperse the stress, preventing the silicone rubber material from tearing due to excessive local stress, and extending the service life of the adjusting tube 4.

[0032] As a preferred embodiment, each main pipe body 1 is fixedly connected to a base 6 at its bottom. The base 6 provides stable support for the entire device, reducing pipe vibration and displacement.

[0033] In use, the adjustable flow starch slurry pumping pipeline device of this utility model connects to the starch slurry pump and downstream pipeline via flanges 10 at both ends of the main pipeline body 1, forming a conveying path. When flow adjustment is required, the regulating motor 25 is started to drive the coaxial drive gear 26 to rotate. This gear drives the gear ring on the movable ring 21 to rotate, and the gear ring further drives multiple drive gears 26 to rotate synchronously, causing the threaded regulating screw 23 to produce radial linear motion. The movement of the regulating screw 23 pushes the second connecting rod 40 to extend or retract (the inner rod slides inside the sleeve). Through the hinge linkage between the first connecting rod 30 and the main pipeline body 1, the diameter of the silicone rubber regulating pipe 4 changes. When the regulating screw 23 moves centripetally, the regulating pipe 4 contracts, the flow cross-sectional area decreases, and the flow rate decreases; when it moves centrifugally, the regulating pipe 4 expands, the cross-sectional area increases, and the flow rate increases. The silicone rubber regulating pipe 4 and connecting pipe 3, with their elastic deformation capacity, corrosion resistance, and wear resistance, ensure the flow adjustment range and pipeline life.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable flow starch slurry pumping conduit apparatus, characterized by: The system includes two symmetrically arranged main pipe bodies (1), each of which has a connecting pipe (3) fixedly installed on one side near the middle of the two main pipe bodies (1). An adjusting pipe (4) is provided between the two connecting pipes (3). Each connecting pipe (3) has several first connecting rods (30), and the adjusting pipe (4) has several telescopic second connecting rods (40). The two ends of the first connecting rods (30) are respectively hinged to the second connecting rods (40) and the main pipe body (1). An adjusting mechanism (2) for adjusting the diameter of the adjusting pipe (4) is provided on the outside of the adjusting pipe (4). The adjusting mechanism (2) includes a fixing ring (20), and several radially arranged adjusting screws (23) are slidably installed on the fixing ring (20). The several adjusting screws (23) are respectively fixed at the middle of the several second connecting rods (40). The connecting pipes (3) and the adjusting pipe (4) are both made of silicone rubber.

2. The adjustable flow starch slurry pumping conduit apparatus of claim 1, wherein: A flange (10) is welded to the outer circumference of each of the two main pipe bodies (1) at the end away from the connecting pipe (3).

3. An adjustable flow starch slurry pumping conduit apparatus as claimed in claim 2, wherein: Several support rods (5) arranged in a circular array are fixed on both sides of the outer wall of the fixing ring (20). The end of the support rod (5) away from the fixing ring (20) is welded and fixed to the flange (10).

4. The adjustable flow rate starch slurry pumping pipeline device as described in claim 3, characterized in that: The outer circumference of the fixed ring (20) is rotatably mounted with several drive gears (26), and the inner ring wall of the drive gears (26) is threadedly connected to the outer circumference of the adjusting screw (23).

5. The adjustable flow rate starch slurry pumping pipeline device as described in claim 4, characterized in that: A movable ring (21) is rotatably mounted on the outer circumference of the fixed ring (20). A toothed ring is welded to the outer wall of the movable ring (21) near the drive gear (26). The toothed ring meshes with the adjusting gear (22).

6. The adjustable flow rate starch slurry pumping pipeline device as described in claim 5, characterized in that: A motor frame (24) is fixedly installed on the outer circumference of the fixed ring (20). An adjusting motor (25) is fixedly installed on the motor frame (24). A drive gear (26) is coaxially fixed on the output shaft of the adjusting motor (25). The drive gear (26) meshes with the gear ring.

7. The adjustable flow rate starch slurry pumping pipeline device as described in claim 6, characterized in that: The regulating tube (4) has several connecting blocks (41) fixed on its outer circumference, and the several connecting blocks (41) are located on the outside of each second connecting rod (40).

8. The adjustable flow rate starch slurry pumping pipeline device as described in claim 7, characterized in that: Each of the main pipe bodies (1) is fixedly connected to a base (6) at its bottom.

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