Sand remover for processing lotus root pulp

Abstract

The utility model discloses a desander for processing lotus root pulp, which belongs to the field of desanders and comprises a straight barrel and a cone detachably mounted at the bottom of the straight barrel through bolts, and a feed pipe capable of accelerating the lotus root pulp to enter a rotational flow chamber is arranged on the straight barrel along the tangential direction of the straight barrel. An overflow mechanism capable of adjusting the insertion depth is arranged at the top of the straight barrel, a sand settling nozzle capable of preventing silt blockage is arranged at the bottom of the cone, the overflow mechanism comprises an overflow pipe which penetrates through the top of the straight barrel and is in sliding connection with the straight barrel, and a corrugated pipe is arranged at the top of the overflow pipe through a flange; and a sealing ring is arranged at the joint of the overflow pipe and the straight barrel. According to the sand remover for lotus root pulp processing, the liquid level in the rotational flow chamber is adjusted by lifting the overflow pipe, the separation requirements of lotus root pulp with different concentrations can be met, the overflow pipe is lowered when the concentration is high, and the sand grain sedimentation path is prolonged; when the concentration is low, the overflow pipe is lifted to avoid energy waste caused by excessive separation.

Description

Technical Field

[0001] This utility model relates to the field of sand remover technology, and in particular to a sand remover for lotus root pulp processing. Background Technology

[0002] During the processing of lotus root powder and starch, due to the special structure of the raw material (such as lotus root) and its growth characteristics in mud, a large amount of mud and sand particles are present inside the lotus root. When the lotus root is processed into lotus root paste or lotus root powder, these sand particles will mix into the product, seriously affecting the quality and taste. Therefore, during the processing of lotus root paste, a sand remover must be used to remove sand particles and other heavier impurities.

[0003] The desander for lotus root pulp processing generally adopts a cyclone desander structure. However, the overflow pipe at the top of the traditional cyclone desander is fixed. The solid content of lotus root pulp raw material varies significantly with the season and variety. The traditional fixed overflow pipe cannot be dynamically matched. At high concentrations, the sand particles have insufficient settling time, resulting in a decrease in the sand removal rate. At low concentrations, excessive separation leads to energy waste and may also entrain starch particles, reducing the product yield. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing desanders for lotus root pulp processing, such as the overflow pipe being unable to dynamically match changes in lotus root pulp concentration, the overflow pipe being inserted too deeply causing fine particles to enter the overflow, or being inserted too shallowly causing coarse particles to be carried in the overflow. Therefore, a desander for lotus root pulp processing is proposed.

[0005] To achieve the above objectives, the present invention employs the following technology: a desander for lotus root slurry processing, comprising a straight cylindrical body and a cone detachably mounted at the bottom of the straight cylindrical body by bolts. The straight cylindrical body is provided with a feed pipe along its tangential direction to accelerate the entry of lotus root slurry into the vortex chamber. The top of the straight cylindrical body is provided with an overflow mechanism that can adjust the insertion depth. The bottom of the cone is provided with a settling nozzle that can prevent mud and sand from clogging the vortex.

[0006] As a further description of the above technical solution: the overflow mechanism includes an overflow pipe that passes through the top of the straight cylinder and is slidably connected thereto. A bellows is provided at the top of the overflow pipe through a flange, and a sealing ring is provided at the connection between the overflow pipe and the straight cylinder.

[0007] As a further description of the above technical solution: the overflow mechanism also includes a positioning adjustment component;

[0008] The positioning adjustment assembly includes a bracket set on the top of the cylindrical body. The bracket has a sliding groove for the connecting plate to slide. The bracket has at least two positioning holes, and a positioning bolt that penetrates the connecting plate is provided in one of the positioning holes of the bracket.

[0009] As a further description of the above technical solution: the outer surface of the overflow pipe is engraved with scale lines arranged along its height direction.

[0010] As a further description of the above technical solution: the feeding channel of the feeding pipe includes a first feeding section, a second feeding section and a third feeding section arranged sequentially along the lotus root slurry feeding direction. The first feeding section, the second feeding section and the third feeding section are connected by a conical section, wherein the cross-sectional area of ​​the first feeding section, the second feeding section and the third feeding section decreases sequentially.

[0011] As a further description of the above technical solution: the sand discharge channel of the sand discharge nozzle includes a first channel and a second channel arranged sequentially along the sand discharge direction, wherein the cross-sectional area of ​​the first channel is larger than the cross-sectional area of ​​the second channel, and the taper of the second channel is larger than the taper of the cone.

[0012] As a further description of the above technical solution: the inner walls of the straight cylinder and the cone are provided with spiral guide vanes.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] The overflow mechanism allows for adjustment of the insertion depth of the overflow pipe in the cyclone chamber of the desander, thus matching the separation requirements of lotus root slurry of different concentrations. When the concentration is high, the overflow pipe is lowered to extend the sedimentation path of the sand particles, while when the concentration is low, the overflow pipe is raised to avoid excessive separation and energy waste. In addition, by adjusting the lifting and lowering mechanism to place the overflow pipe at the optimal liquid level, the escape of sand particles can be reduced, and the purity of the product can be improved. Attached Figure Description

[0015] Figure 1 A cross-sectional view according to an embodiment of the present invention is shown;

[0016] Figure 2 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 3 A schematic diagram of the overflow mechanism provided according to an embodiment of the present invention is shown;

[0018] Figure 4 A schematic diagram of the positioning adjustment assembly provided according to an embodiment of the present invention is shown;

[0019] Figure 5 A cross-sectional schematic diagram of the feed pipe provided according to an embodiment of the present invention is shown;

[0020] Figure 6 A cross-sectional schematic diagram of a sand-receiving nozzle provided according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. Straight cylinder; 2. Cone; 3. Feed pipe; 31. First feed section; 32. Second feed section; 33. Third feed section; 34. Conical section; 4. Overflow mechanism; 41. Overflow pipe; 42. Corrugated pipe; 43. Connecting plate; 44. Positioning adjustment assembly; 441. Bracket; 442. Slide groove; 443. Positioning hole; 444. Positioning bolt; 5. Sand discharge nozzle; 51. First channel; 52. Second channel; 6. Guide vane. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-6 This embodiment provides a desander for lotus root slurry processing, including a straight cylinder 1 and a cone 2 detachably installed at the bottom of the straight cylinder 1 by bolts. The straight cylinder 1 is provided with a feed pipe 3 along its tangential direction to accelerate the entry of lotus root slurry into the vortex chamber. The top of the straight cylinder 1 is provided with an overflow mechanism 4 that can adjust the insertion depth. The bottom of the cone 2 is provided with a sand settling nozzle 5 that can prevent mud and sand from clogging. Spiral guide vanes 6 are provided on the inner walls of the straight cylinder 1 and the cone 2.

[0025] In this invention, lotus root slurry is injected at high speed into the vortex chamber inside the straight cylinder 1 through the feed pipe 3 arranged tangentially along the straight cylinder 1. The tangential feed gives the lotus root slurry an initial tangential velocity, forming a rotating flow field inside the straight cylinder 1 and the cone 2. The spiral guide vane 6 further guides the fluid to move along the spiral path, enhancing the vortex intensity. The guide vane 6 promotes the full separation of sand particles and slurry by extending the residence time of the fluid in the vortex chamber. Under the action of centrifugal force, heavy impurities such as sand particles are thrown towards the inner wall of the vortex chamber, while lighter liquids converge towards the center. The overflow liquid is discharged from the overflow mechanism 4 at the top, while heavy impurities such as sand particles move downward along the inner wall to the sand settling nozzle 5 and are discharged.

[0026] Specifically, such as Figures 2-4As shown, the overflow mechanism 4 includes an overflow pipe 41 that passes through the top of the straight cylinder 1 and is slidably connected thereto. A bellows 42 is provided on the top of the overflow pipe 41 through a flange. A sealing ring is provided at the connection between the overflow pipe 41 and the straight cylinder 1. The overflow mechanism 4 also includes a positioning adjustment assembly 44. The positioning adjustment assembly 44 includes a bracket 441 provided on the top of the straight cylinder 1. A sliding groove 442 for the connecting plate 43 to slide is provided on the bracket 441. At least two positioning holes 443 are provided on the bracket 441, and a positioning bolt 444 that passes through the connecting plate 43 is provided on one of the positioning holes 443 of the bracket 441.

[0027] The overflow pipe 41 passes through the top of the straight cylinder 1 and is slidably connected to it. By sliding along the axial direction of the straight cylinder 1, the insertion depth of the overflow pipe 41 into the vortex chamber can be adjusted. Multiple positioning holes 443 are opened on the bracket 441. The positioning bolt 444 passes through the connecting plate 43 and is inserted into the positioning hole 443 to fix the insertion depth of the overflow pipe 41. Different positioning holes 443 correspond to different insertion depths to meet the needs of multiple working conditions. When the insertion depth of the overflow pipe 41 increases, the liquid level in the vortex chamber rises and the sand sedimentation time is extended, which is suitable for high-concentration lotus root slurry. When the insertion depth of the overflow pipe 41 decreases, the liquid level drops to avoid excessive separation, which is suitable for low-concentration lotus root slurry. The corrugated pipe 42 can extend and retract axially to compensate for the displacement of the overflow pipe 41 during sliding, while maintaining the top seal.

[0028] In addition, the outer surface of the overflow pipe 41 is engraved with scale lines arranged along its height direction. The scale lines are marked in millimeters or centimeters, allowing operators to directly read the depth of the overflow pipe 41 inserted into the vortex chamber without the need for additional measuring tools.

[0029] Specifically, such as Figure 1 and Figure 5 As shown, the feed channel of the feed pipe 3 includes a first feed section 31, a second feed section 32, and a third feed section 33 arranged sequentially along the direction of lotus root slurry feeding. The first feed section 31, the second feed section 32, and the third feed section 33 are connected by a conical section 34. The cross-sectional areas of the first feed section 31, the second feed section 32, and the third feed section 33 decrease sequentially. The tapered design of the first feed section 31, the second feed section 32, and the third feed section 33 gradually increases the flow velocity of the lotus root slurry as it enters the cyclone chamber, resulting in a more uniform distribution of centrifugal force and reducing turbulence and energy loss.

[0030] Specifically, such as Figure 1 and Figure 6As shown, the sand discharge channel of the settling nozzle 5 includes a first channel 51 and a second channel 52 arranged sequentially along the sand discharge direction. The cross-sectional area of ​​the first channel 51 is larger than that of the second channel 52, and the taper of the second channel 52 is larger than that of the cone 2. The first channel 51 has a larger cross-sectional area. When sand particles arrive at the sand discharge channel with the slurry, the large cross-sectional area can reduce the flow velocity, making it easier for sand particles (especially larger particles) to be deposited there, avoiding direct accumulation in the narrow part of the channel. The cross-sectional area of ​​the second channel 52 is smaller. When the slurry passes through, the flow velocity increases, forming a high-speed jet, which quickly carries out the sand particles deposited in the first channel 51. The increased flow velocity can enhance the fluid's ability to carry sand particles, preventing small particles or flocculent impurities from adhering and accumulating in the channel.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sand remover for lotus root pulp processing, characterized in that, It includes a straight cylinder (1) and a cone (2) that is detachably installed at the bottom of the straight cylinder (1) by bolts. The straight cylinder (1) is provided with a feed pipe (3) along its tangential direction to accelerate the entry of lotus root slurry into the vortex chamber. The top of the straight cylinder (1) is provided with an overflow mechanism (4) that can adjust the insertion depth. The bottom of the cone (2) is provided with a sand settling nozzle (5) that can prevent mud and sand from clogging.

2. The sand remover for lotus root pulp processing according to claim 1, characterized in that, The overflow mechanism (4) includes an overflow pipe (41) that passes through the top of the straight cylinder (1) and is slidably connected thereto. A bellows (42) is provided on the top of the overflow pipe (41) through a flange. A sealing ring is provided at the connection between the overflow pipe (41) and the straight cylinder (1).

3. A sand remover for lotus root pulp processing according to claim 2, characterized in that, The overflow mechanism (4) also includes a positioning adjustment component (44). The positioning adjustment assembly (44) includes a bracket (441) set on the top of the straight cylinder (1). The bracket (441) has a sliding groove (442) for sliding the connecting plate (43). The bracket (441) has at least two positioning holes (443), and a positioning bolt (444) penetrating the connecting plate (43) is provided on one of the positioning holes (443) of the bracket (441).

4. A sand remover for lotus root pulp processing according to claim 3, characterized in that, The outer surface of the overflow pipe (41) is engraved with scale lines arranged along its height direction.

5. A sand remover for lotus root pulp processing according to claim 1, characterized in that, The feeding channel of the feed pipe (3) includes a first feeding section (31), a second feeding section (32) and a third feeding section (33) arranged sequentially along the feeding direction of lotus root slurry. The first feeding section (31), the second feeding section (32) and the third feeding section (33) are connected by a conical section (34). The cross-sectional area of ​​the first feeding section (31), the second feeding section (32) and the third feeding section (33) decreases sequentially.

6. A sand remover for lotus root pulp processing according to claim 1, characterized in that, The sand discharge channel of the sedimentation nozzle (5) includes a first channel (51) and a second channel (52) arranged sequentially along the sand discharge direction. The cross-sectional area of ​​the first channel (51) is greater than that of the second channel (52), and the taper of the second channel (52) is greater than that of the cone (2).

7. A sand remover for lotus root pulp processing according to claim 1, characterized in that, Spiral guide vanes (6) are provided on the inner walls of the straight cylinder (1) and the cone (2).

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