A conveying device for solid-liquid mixtures

Abstract

This invention relates to the field of screw conveyor technology, specifically to a conveying device for solid-liquid mixtures, comprising a frame, a conveying pipe on the frame, a fixed shaft and auger blades inside the conveying pipe, the fixed shaft being fixedly installed in the conveying pipe and extending along the length of the conveying pipe, the auger blades being coaxially rotatably installed outside the fixed shaft, and the inner circumferential surface of the auger blades being in contact with the outer circumferential surface of the fixed shaft; a driving mechanism is also provided at one end of the conveying pipe, the driving mechanism being able to drive the auger blades to rotate around the fixed shaft, so that the auger blades convey the solid-liquid mixture from back to front, while the auger blades scrape off the liquid material adhering to the fixed shaft, thereby improving the conveying efficiency of the solid-liquid mixture.

Description

Technical Field

[0001] This invention relates to the field of screw conveyor technology, and in particular to a conveying device for solid-liquid mixtures. Background Technology

[0002] When conveying solid-liquid mixtures, screw conveyors, also known as auger conveyors, are commonly used. For example, patent document CN223087170U discloses a screw spreading mechanism, which includes an auger conveyor. The auger conveyor includes a conveying pipe, a rotating shaft is installed inside the conveying pipe, and helical blades are fixedly installed on the rotating shaft. The rotating shaft drives the helical blades to rotate, thereby pushing the material to move in the conveying pipe.

[0003] However, when this type of hinged-hole conveyor is used to transport solid-liquid mixtures, the liquid in the mixture is usually viscous, which makes it easy for a large amount of liquid to adhere to the rotating shaft, thus affecting the conveying efficiency of the solid-liquid mixture. Summary of the Invention

[0004] Therefore, it is necessary to provide a conveying device for solid-liquid mixtures to address the technical problem of low conveying efficiency of current screw conveyors for solid-liquid mixtures.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A solid-liquid mixture conveying device includes a frame with a conveying pipe on the frame. Inside the conveying pipe are a fixed shaft and auger blades. The fixed shaft is fixedly installed in the conveying pipe and extends along its length. The auger blades are coaxially rotatably installed outside the fixed shaft, with their inner circumferential surfaces in contact with the outer circumferential surface of the fixed shaft. A driving mechanism is also provided at one end of the conveying pipe. This driving mechanism drives the auger blades to rotate around the fixed shaft, causing the auger blades to convey the solid-liquid mixture from back to front, while simultaneously scraping off any liquid material adhering to the fixed shaft.

[0007] Furthermore, the inside of the conveying pipe is also provided with a flexible liner extending along its length. The flexible liner is located outside the auger blade. The fixed shaft is provided with a telescopic component, which is used to tension the flexible liner so that a part of the flexible liner can be tightly attached to the outer peripheral surface of the auger blade.

[0008] Furthermore, the telescopic assembly includes multiple telescopic rods that extend radially along a fixed shaft and are distributed correspondingly along the length of the fixed shaft. Each telescopic rod on the fixed shaft has a telescopic groove at its corresponding position. The telescopic rod slides within the telescopic groove, and a compression spring is provided between the telescopic rod and the telescopic groove. The compression spring has a tendency to extend the telescopic rod out of the telescopic groove, thereby tensioning the flexible liner with the telescopic rod.

[0009] Furthermore, the inner wall of the conveying pipe is provided with an insertion groove, which corresponds to multiple telescopic rods. The ends of the telescopic rods can push the flexible liner into the insertion groove.

[0010] Furthermore, the telescopic rod extends horizontally, and multiple telescopic rods are evenly distributed along the length of the fixed axis.

[0011] Furthermore, in the radial direction of the auger blades, the thickness of the auger blades gradually decreases from the outside to the inside.

[0012] Furthermore, the end of the telescopic rod is hemispherical, and the auger blade has a helical surface with an arc-shaped concave surface, allowing the end of the telescopic rod to slide in conjunction with the arc-shaped concave surface.

[0013] Furthermore, a cover plate is detachably installed above the conveying pipe, the middle part of the flexible liner is wrapped around the outside of the auger blade, and the upper end of the flexible liner is fixedly installed on the cover plate.

[0014] Furthermore, it also includes a frame, the conveying pipe is inclined on the frame in the vertical direction, the cover plate is provided with a feed port corresponding to the lower end of the conveying pipe, and the bottom of the conveying pipe is provided with a discharge port corresponding to the higher end of the conveying pipe.

[0015] Furthermore, the flexible liner is a knife-coated fabric.

[0016] The beneficial effects of this invention are:

[0017] The solid-liquid mixture conveying device provided by the present invention firstly improves the conveying efficiency of the solid-liquid mixture by scraping off the liquid material adhering to the fixed shaft during the conveying of the solid-liquid mixture, since the fixed shaft is stationary and liquid material easily adheres to the fixed shaft.

[0018] Secondly, a flexible liner is installed between the auger blades and the conveying pipe. The flexible liner is wear-resistant and has a smooth surface, which can prevent the auger blades from directly contacting the conveying pipe and causing wear on the outer circumference of the auger blades. This prevents the backflow of liquid materials due to gaps between the auger blades and the conveying pipe. At the same time, the telescopic component keeps the flexible liner tightly attached to the outer surface of the auger blades, which can prevent the backflow of liquid materials due to gaps between the flexible liner and the auger blades, ensuring the normal conveying of solid-liquid mixtures and extending the service life of the auger blades.

[0019] Third, since large solid materials in the solid-liquid mixture will tumble upward around the fixed shaft as the auger blades rotate, this tumbling will cause the large solid materials to spin idly at that position without moving forward. The horizontally set telescopic rod can prevent the large solid materials from tumbling upward around the fixed shaft, thereby prompting the large solid materials to be spirally conveyed forward with the auger blades, thus improving the conveying efficiency of the solid-liquid mixture. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a solid-liquid mixture conveying device according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A side view diagram;

[0022] Figure 3 This is a partial structural schematic diagram of a solid-liquid mixture conveying device provided in an embodiment of the present invention;

[0023] Figure 4 for Figure 3 A bird's-eye view Figure 1 ;

[0024] Figure 5 for Figure 4 Schematic diagram of the sectional structure of the middle AA section;

[0025] Figure 6 for Figure 5 Enlarged view of the structure at point C;

[0026] Figure 7 This is a side view of the conveying pipeline in a solid-liquid mixture conveying device according to an embodiment of the present invention;

[0027] Figure 8 for Figure 7 BB section view;

[0028] Figure 9 for Figure 8 Enlarged view of the structure at point D;

[0029] Figure 10 for Figure 3A bird's-eye view Figure 2 ;

[0030] Figure 11 for Figure 10 Schematic diagram of the EE section;

[0031] Figure 12 for Figure 11 Enlarged view of the structure at point H in the middle;

[0032] Figure 13 for Figure 10 Schematic diagram of the FF section;

[0033] Figure 14 for Figure 10 Schematic diagram of cross-section of GG.

[0034] in:

[0035] 100. Frame; 101. Drive motor; 102. Cover plate; 103. Conveying pipe; 1031. Insertion slot; 104. Feed inlet; 105. Discharge outlet; 106. Flexible liner; 110. Screwdriver blade; 1101. Arc-shaped concave surface; 111. Fixed shaft; 112. Telescopic rod; 113. Telescopic groove; 114. Compression spring; 115. Pressure plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0037] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] like Figures 1 to 14 As shown, an embodiment of the present invention provides a solid-liquid mixture conveying device, including a frame 100, on which a conveying pipe 103 is provided. The conveying pipe 103 is provided with a fixed shaft 111 and an auger blade 110 inside. The fixed shaft 111 is fixedly disposed in the conveying pipe 103 and extends along the length direction of the conveying pipe 103. The auger blade 110 is coaxially rotatably disposed outside the fixed shaft 111, and the inner circumferential surface of the auger blade 110 is in contact with the outer circumferential surface of the fixed shaft 111. A driving mechanism is also provided at one end of the conveying pipe 103. The driving mechanism can drive the auger blade 110 to rotate around the fixed shaft 111, so that the auger blade 110 conveys the solid-liquid mixture from back to front, while the auger blade 110 scrapes off the liquid material adhering to the fixed shaft 111.

[0040] In this way, when conveying solid-liquid mixtures, since the fixed shaft 111 is stationary and liquid materials easily adhere to it, the continuous rotation of the auger blades 110 can scrape off the liquid materials adhering to the fixed shaft 111, preventing the liquid materials from adhering to the fixed shaft 111 and becoming unable to move, thereby improving the conveying efficiency of solid-liquid mixtures.

[0041] like Figure 13 As shown, the inside of the conveying pipe 103 is also provided with a flexible liner 106 extending along its length direction. The flexible liner 106 is located outside the auger blade 110. The fixed shaft 111 is provided with a telescopic component, which is used to tension the flexible liner 106 so that a part of the flexible liner 106 can be tightly attached to the outer peripheral surface of the auger blade 110.

[0042] A flexible liner 106 is provided between the auger blade 110 and the conveying pipe 103. The flexible liner 106 is wear-resistant and has a smooth surface, which can prevent the auger blade 110 from directly contacting the conveying pipe 103 and causing wear on the outer circumference of the auger blade 110. This prevents the backflow of liquid materials due to gaps between the auger blade 110 and the conveying pipe 103. At the same time, the telescopic component makes the flexible liner 106 fit tightly against the outer surface of the auger blade 110, which can prevent the backflow of liquid materials due to gaps between the flexible liner 106 and the auger blade 110, ensuring the normal conveying of solid-liquid mixtures and extending the service life of the auger blade 110.

[0043] like Figures 2 to 9 As shown, the telescopic assembly includes multiple telescopic rods 112, which extend radially along a fixed shaft 111. The multiple telescopic rods 112 are distributed correspondingly along the length of the fixed shaft 111. A telescopic groove 113 is provided on the fixed shaft 111 corresponding to the position of each telescopic rod 112. The telescopic rod 112 slides within the telescopic groove 113, and a compression spring 114 is provided between the telescopic rod 112 and the telescopic groove 113. The compression spring 114 has a tendency to extend the telescopic rod 112 out of the telescopic groove 113, thereby tensioning the flexible liner 106. This arrangement is simple and facilitates the tensioning of the flexible liner 106.

[0044] Furthermore, the inner wall of the conveying pipe 103 is provided with an insertion groove 1031, which corresponds to multiple telescopic rods 112. The ends of the telescopic rods 112 can push the flexible liner 106 into the insertion groove 1031. This allows the flexible liner 106 to be stretched, resulting in a better tensioning effect.

[0045] Furthermore, the telescopic rods 112 extend horizontally, and multiple telescopic rods 112 are evenly distributed along the length of the fixed shaft 111. Since large pieces of solid material in the solid-liquid mixture will tumble upwards around the fixed shaft 111 as the auger blades 110 rotate, this tumbling can cause the large pieces of solid material to spin idly at that position without moving forward. The horizontally positioned telescopic rods 112 can prevent the large pieces of solid material from tumbling upwards around the fixed shaft 111, thereby promoting the spiral forward transport of the large pieces of solid material with the auger blades 110, improving the conveying efficiency of the solid-liquid mixture.

[0046] like Figure 13 and Figure 14 As shown, in the radial direction of the auger blade 110, the thickness of the auger blade 110 gradually decreases from the outside to the inside. This makes the auger blade 110 thinner on the side near its inner circumferential surface, making it easier to scrape off the liquid material on the fixed shaft 111.

[0047] Furthermore, the end of the telescopic rod 112 is hemispherical, and the auger blade 110 has a helical surface with an arc-shaped concave surface 1101. The end of the telescopic rod 112 can slide in contact with the arc-shaped concave surface 1101. Thus, when the auger blade 110 rotates around the fixed axis 111, the sliding contact between the end of the telescopic rod 112 and the arc-shaped concave surface 1101 causes the telescopic rod 112 to gradually retract into the telescopic groove 113.

[0048] like Figure 13 and Figure 14 As shown, when the auger blade 110 moves away from the telescopic rod 112, the end of the telescopic rod 112 is located in the insertion groove 1031. When the auger blade 110 gradually approaches the telescopic rod 112, the arc-shaped concave surface 1101 slides with the end of the telescopic rod 112, causing the telescopic rod 112 to retract into the telescopic groove 113.

[0049] Furthermore, a cover plate 102 is detachably installed above the conveying pipe 103, and the middle part of the flexible liner 106 is wrapped around the outside of the auger blade 110, with the upper end of the flexible liner 106 fixedly mounted on the cover plate 102. Specifically, the upper end of the flexible liner 106 is pressed onto the cover plate 102 by a pressure plate 115, and bolts are sequentially passed through the pressure plate 115, the flexible liner 106, and the cover plate 102 for fixed connection.

[0050] Furthermore, it also includes a frame 100, the conveying pipe 103 is inclinedly arranged on the frame 100 in the vertical direction, the cover plate 102 is provided with a feed inlet 104, the feed inlet 104 corresponds to the lower end of the conveying pipe 103, the bottom of the conveying pipe 103 is provided with a discharge outlet 105, the discharge outlet 105 corresponds to the higher end of the conveying pipe 103.

[0051] Furthermore, the flexible lining 106 is a knife-coated fabric. Knife-coated fabric uses a PVC film formed on both sides as the base material, with light-guiding fiber optic strips added between the double-sided PVC layers. A certain pressure is applied by rotating a hot roller to bond the three layers together, and then the mixture is cooled and molded. Knife-coated fabric has waterproof and wear-resistant properties.

[0052] The driving mechanism is a drive motor 101. The end of the auger blade 110 is provided with a drive ring, and a transmission shaft is provided on the drive ring. The output end of the drive motor 101 is in transmission cooperation with the transmission shaft.

[0053] Based on the above embodiments, the usage principle and working process of the embodiments of the present invention are as follows:

[0054] In the initial state, the auger blade 110 causes a portion of the telescopic rod 112 on the fixed shaft 111 to retract into the telescopic groove 113, while another portion of the telescopic rod 112 extends out from the telescopic groove 113 of the fixed shaft 111 and enters the insertion groove 1031, causing the flexible liner 106 to be tensioned and thus closely adhere to the outer periphery of the auger blade 110.

[0055] The solid-liquid mixture is fed into the inlet 104, and then the drive motor 101 is started, causing the auger blades 110 to rotate around the fixed shaft 111. As the auger blades 110 rotate, the arc-shaped concave surface 1101 causes the telescopic rods 112 to continuously extend and retract. A fixed number of these telescopic rods 112 always maintain tension on the flexible liner 106, ensuring no gaps form between the flexible liner 106 and the auger blades 110. Because a fixed number of telescopic rods 112 always maintain tension on the flexible liner 106, and the position of the extended rods 112 constantly changes, a constantly changing wavy groove is formed on the flexible liner 106 corresponding to the insertion slot 1031. This wavy groove hinders the backward flow of liquid material in the solid-liquid mixture. As the auger blades 110 rotate, their spiral surface propels the solid-liquid mixture forward. Finally, the solid-liquid mixture is discharged from the outlet 105 at the bottom of the conveying pipe 103.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A conveying device for a solid-liquid mixture, characterized in that, The device includes a frame on which a conveying pipe is provided. Inside the conveying pipe are a fixed shaft and auger blades. The fixed shaft is fixedly installed in the conveying pipe and extends along the length of the conveying pipe. The auger blades are coaxially rotatably installed outside the fixed shaft, and the inner circumferential surface of the auger blades is in contact with the outer circumferential surface of the fixed shaft. One end of the conveying pipe is also provided with a driving mechanism, which can drive the auger blades to rotate around a fixed shaft, so that the auger blades convey solid-liquid mixtures from back to front. At the same time, the auger blades scrape off the liquid material adhering to the fixed shaft. The inside of the conveying pipe is also provided with a flexible liner extending along its length. The flexible liner is located outside the auger blades. The fixed shaft is provided with a telescopic component, which is used to tension the flexible liner so that a part of the flexible liner can be tightly attached to the outer peripheral surface of the auger blades. The telescopic component includes multiple telescopic rods, which extend radially along the fixed shaft and are distributed accordingly along the length of the fixed shaft. The fixed shaft has a telescopic groove corresponding to the position of each telescopic rod. The telescopic rod slides in the telescopic groove, and a compression spring is provided between the telescopic rod and the telescopic groove. The compression spring has a tendency to extend the telescopic rod out of the telescopic groove, thereby tensioning the flexible liner. The inner wall of the conveying pipe has an insertion groove, which corresponds to multiple telescopic rods. The end of the telescopic rod can push the flexible liner into the insertion groove. In the radial direction of the auger blade, the thickness of the auger blade gradually decreases from the outside to the inside. The end of the telescopic rod is hemispherical, and the auger blade has a helical surface with an arc-shaped concave surface. The end of the telescopic rod can slide and engage with the arc-shaped concave surface.

2. The solid-liquid mixture conveying device according to claim 1, characterized in that, The telescopic rods extend horizontally, and multiple telescopic rods are evenly distributed along the length of the fixed axis.

3. The solid-liquid mixture conveying device according to claim 1, characterized in that, A cover plate is detachably installed above the conveying pipe, and the middle part of the flexible liner is wrapped around the outside of the auger blade, while the upper end of the flexible liner is fixedly mounted on the cover plate.

4. The solid-liquid mixture conveying device according to claim 3, characterized in that, It also includes a frame, the conveying pipe is inclined on the frame in the vertical direction, the cover plate is provided with a feed port, the feed port is corresponding to the lower end of the conveying pipe, the bottom of the conveying pipe is provided with a discharge port, the discharge port is corresponding to the higher end of the conveying pipe.

5. The solid-liquid mixture conveying device according to claim 1, characterized in that, The flexible lining is made of knife-coated cloth.

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