Double vertical screw conveyor and wet material conveying method

Abstract

The application discloses a double-vertical screw conveyor and a wet material conveying method, which comprises a screw conveyor and a cutting device arranged in a conveying cavity of the screw conveyor; the cutting device comprises a supporting shaft fixedly connected to a blade, a rotating piece rotatably connected to the supporting shaft, and a cutting piece arranged on the rotating piece; the rotating piece is in contact with the inner wall of the conveying cavity; the rotating piece driven by the rotating screw shaft rotates through the frictional contact with the inner wall of the conveying cavity, so that the cutting piece rotates along with the rotating piece and rotates around the screw shaft in the circumferential direction to cut the wet material. The cutting device is arranged in the conveying cavity, so that the cutting piece of the cutting device rotates along with the rotating piece and rotates around the screw shaft in the circumferential direction to cut the wet material, thereby avoiding the blockage of the conveying cavity due to the material caking, ensuring the smoothness of the material conveying, and improving the material conveying efficiency.

Description

Technical Field

[0001] This invention belongs to the field of screw conveyor technology, and particularly relates to a double vertical screw conveyor and its conveying method. Background Technology

[0002] When using a screw conveyor to transport wet materials, due to the viscous effect, the materials are prone to agglomeration and clumping during the conveying process. The presence of agglomeration and clumping will reduce the effective conveying cross section of the conveying chamber, leading to blockage and affecting the smoothness and efficiency of the screw conveyor in transporting wet materials. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a double vertical screw conveyor and a method for conveying wet materials. By setting a cutting device in the conveying chamber, the cutting part of the cutting device can rotate with the rotating part and rotate around the screw shaft to cut the wet materials, thereby avoiding the blockage of the conveying chamber due to material agglomeration, ensuring the smoothness of material conveying, and improving the material conveying efficiency.

[0004] Technical solution: To achieve the above objectives, the present invention provides a double vertical screw conveyor, comprising a screw conveyor and a cutting device disposed within the conveying chamber of the screw conveyor; the cutting device comprises a support shaft fixedly connected to the blades, a rotating component rotatably connected to the support shaft, and a cutting component disposed on the rotating component; the rotating component contacts the inner wall of the conveying chamber, and the rotating component, driven by the rotating screw shaft, rotates through frictional contact with the inner wall of the conveying chamber, causing the cutting component to follow the rotation of the rotating component and rotate circumferentially around the screw shaft to cut the wet material.

[0005] Furthermore, the rotating component is a roller parallel to the axis of the helical shaft, the surface of the roller is in contact with the inner wall of the conveying cavity, and the inner wall of the conveying cavity is supported by the surface of the roller.

[0006] Furthermore, the cutting element is a cutting blade arranged in a circumferential array on the side of the roller, and the cutting blade extends along the axial direction of the roller to the two sides of the distribution roller in the length direction.

[0007] Furthermore, the cutting device is arranged near the feed inlet and discharge outlet of the screw conveyor.

[0008] Furthermore, the screw conveyor has a pair, which are arranged side by side in a vertical orientation and fixed relative to each other to form a double vertical screw conveyor structure.

[0009] Furthermore, the top port of the conveying chamber of the screw conveyor is sealed by a top bearing assembly, and the bottom port is sealed by a bottom bearing assembly.

[0010] A method for conveying wet materials using a double vertical screw conveyor involves starting the screw conveyor to transport the wet material. The wet material enters the conveying chamber through the inlet, and under the drive of the blades, the wet material is conveyed upwards along the conveying chamber and then discharged through the outlet. During this conveying process:

[0011] When the initial wet material enters the conveying chamber through the feed inlet, the conveying effect is temporarily poor due to the empty state of the conveying chamber. The material initially entering the conveying chamber will slip, thus forming a material accumulation effect at the bottom of the conveying chamber. This makes the wet material easy to clump near the feed inlet, causing blockage and affecting the continuous entry of material.

[0012] At this time, in the cutting device near the feed inlet, the rotating component driven by the rotating screw shaft rotates by friction contact with the inner wall of the conveying chamber, causing the cutting component to rotate with the rotating component and rotate around the screw shaft, cutting and breaking up the wet material that is clumped near the feed inlet, avoiding the wet material from clumping and blocking the conveying chamber, ensuring the smoothness of material conveying, and improving the material conveying efficiency.

[0013] When wet material is conveyed along the conveying chamber to the discharge port, the wet material waiting to be discharged at the top obstructs the subsequent wet material that is rapidly advancing to the discharge port. As a result, a material accumulation effect will form at the top of the conveying chamber, making it easy for the wet material to clump together near the discharge port, causing blockage and affecting the continuous discharge of material.

[0014] At this time, in the cutting device near the discharge port, the rotating component driven by the rotating screw shaft rotates by friction contact with the inner wall of the conveying chamber, causing the cutting component to rotate with the rotating component and rotate around the screw shaft. This cuts and breaks up the wet material that has clumped near the discharge port, preventing the wet material from clumping and blocking the conveying chamber, ensuring the smoothness of material conveying, and improving the efficiency of material conveying.

[0015] Beneficial effects: The present invention, through the setting of a cutting device in the conveying cavity, in the cutting device, the rotating spiral shaft drives the rotating component to rotate by friction contact with the inner wall of the conveying cavity, so that the cutting component follows the rotating component to rotate and rotates around the spiral shaft to cut the wet material, thereby avoiding the blockage of the conveying cavity due to material agglomeration, ensuring the smoothness of material conveying, improving material conveying efficiency, and is suitable for large-scale promotion and application. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Appendix Figure 2 This is a half-sectional schematic diagram of the screw conveyor where the cutting device is located;

[0018] Appendix Figure 3 This is a schematic diagram of the overall structure of the cutting device;

[0019] Appendix Figure 4 This is a top view of the cutting device. Detailed Implementation

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] When using a screw conveyor to transport wet materials, due to the viscous effect, the materials are prone to agglomeration and clumping during the conveying process. The presence of agglomeration and clumping will reduce the effective conveying cross section of the conveying chamber, leading to blockage and affecting the smoothness and efficiency of the screw conveyor in transporting wet materials.

[0022] To solve the above problems, the technical solution proposed by this invention is as follows: Figure 1 and attached Figure 2 As shown, a double vertical screw conveyor includes a screw conveyor 1 and a cutting device 2 disposed in the conveying chamber 10 of the screw conveyor 1. The cutting device 2 includes a support shaft 21 fixedly connected to a blade 11, a rotating component 22 rotatably connected to the support shaft 21, and a cutting component 23 disposed on the rotating component 22. The rotating component 22 contacts the inner wall of the conveying chamber 10. Driven by the rotating screw shaft 12, the rotating component 22 rotates through frictional contact with the inner wall of the conveying chamber 10, causing the cutting component 23 to rotate with the rotating component 22 and rotate circumferentially around the screw shaft 12 to cut wet materials. This avoids material agglomeration and blockage of the conveying chamber, ensures smooth material conveying, and improves material conveying efficiency.

[0023] In this invention, preferably, the rotating component 22 is a roller parallel to the axis of the helical shaft 12. The wheel surface of the roller is in contact with the inner wall of the conveying cavity 10. The inner wall of the conveying cavity 10 is supported by the wheel surface of the roller. Thus, the roller also supports the helical shaft 12, improves structural stability, ensures that the helical shaft 12 and the outer shell of the screw conveyor 1 remain coaxial, and avoids affecting normal conveying operations.

[0024] In this invention, preferably, the cutting element 23 is a cutting blade arranged in a circumferential array on the side of the roller. In order to improve the coverage of the material being cut, the cutting blade extends along the axial direction of the roller to the two sides of the roller, thereby expanding the effective cutting range of the cutting blade.

[0025] Since wet materials are prone to clumping near the inlet 1a and outlet 1b, the cutting device 2 is arranged near the inlet 1a and outlet 1b of the screw conveyor 1. Of course, the cutting device 2 can also be installed in other positions within the conveying chamber 10.

[0026] The screw conveyor 1 is a pair, which are arranged side by side in a vertical orientation and fixed to each other to form a double vertical screw conveying structure, which can improve the conveying capacity. More specifically, the outer shells of the pair of screw conveyors 1 are connected and fixed together by a connecting plate 17.

[0027] The double vertical screw conveyor structure has a gearbox 13 and a drive unit 14 located at the driving force input end. The drive unit 14 drives the screw shaft 12 connected to the screw conveyor 1 via the gearbox 13. The drive unit 14 is preferably a cycloidal pinwheel reducer motor. The efficiency of a cycloidal pinwheel reducer motor can typically reach over 96%, so its energy consumption is lower than other reduction methods at the same output power.

[0028] The top port of the conveying chamber 10 of the screw conveyor 1 is sealed by the top bearing assembly 15, and the bottom port is sealed by the bottom bearing assembly 16.

[0029] A method for conveying wet materials using a double vertical screw conveyor: The screw conveyor 1 is started to convey wet materials. The wet materials enter the conveying chamber 10 through the inlet 1a. Driven by the blades 11, the wet materials are conveyed upward along the conveying chamber 10 and then discharged through the outlet 1b. During this conveying process:

[0030] When the initial wet material enters the conveying chamber 10 through the feed inlet 1a, the conveying effect is temporarily poor due to the empty state of the conveying chamber 10. The material initially entering the conveying chamber 10 will slip, thus forming a material accumulation effect at the bottom of the conveying chamber 10. This makes the wet material easy to clump near the feed inlet 1a, causing blockage and affecting the continuous entry of material.

[0031] At this time, in the cutting device 2 near the feed inlet 1a, the rotating part 22 driven by the rotating screw shaft 12 rotates by friction contact with the inner wall of the conveying chamber 10, causing the cutting part 23 to rotate with the rotating part 22 and rotate around the screw shaft 12, cutting and crushing the wet material that is clumped near the feed inlet 1a, avoiding the wet material from clumping and blocking the conveying chamber 10, ensuring the smoothness of material conveying, and improving the material conveying efficiency.

[0032] When wet material is conveyed along the conveying chamber 10 to the discharge port 1b, the wet material to be discharged at the top obstructs the subsequent wet material that is rapidly advancing to the discharge port 1b. As a result, a material accumulation effect will form at the top of the conveying chamber 10, making it easy for the wet material to clump together near the discharge port 1b, causing blockage and affecting the continuous discharge of material.

[0033] At this time, in the cutting device 2 near the discharge port 1b, the rotating component 22 driven by the rotating screw shaft 12 rotates by friction contact with the inner wall of the conveying chamber 10, causing the cutting component 23 to rotate with the rotating component 22 and rotate around the screw shaft 12, cutting and crushing the wet material that has clumped near the discharge port 1b, preventing the wet material from clumping and blocking the conveying chamber 10, ensuring the smoothness of material conveying, and improving the material conveying efficiency.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A double vertical spiral conveyor, characterized by: The utility model provides a cutting device for wet material of spiral conveyor, including spiral conveyor (1) and set up in the conveying chamber (10) of spiral conveyor (1) cutting device (2), cutting device (2) including fixedly connected on the blade (11) support shaft (21), rotatably connected on support shaft (21) rotating part (22) and set up on rotating part (22) cutting part (23), rotating part (22) with the inner wall of conveying chamber (10) contact, rotating spiral shaft (12) driven rotating part (22) through the friction contact with the inner wall of conveying chamber (10) and rotates, make cutting part (23) follow rotating part (22) and rotate and circumferential rotation around spiral shaft (12) and cut wet material, Rotating part (22) is the parallelism of spiral shaft (12) axis's gyro wheel, the wheel surface of gyro wheel is contacted with the inner wall of conveying chamber (10), and the inner wall of conveying chamber (10) is supported by the wheel surface of gyro wheel, Cutting part (23) is the cutting knife of circumferential array setting in the side of gyro wheel, and the cutting knife extends to the both wheel side of gyro wheel in the length direction along the axial direction of gyro wheel.

2. A double vertical screw conveyor according to claim 1, characterized in that: Cutting device (2) is arranged at the position close to the inlet (1a) and outlet (1b) of spiral conveyor (1).

3. A double vertical screw conveyor according to claim 2, characterized in that: The spiral conveyor (1) has a pair, and the pair of spiral conveyor (1) is fixed in a vertical posture and is arranged opposite to each other, forming a double vertical spiral conveying structure.

4. A double vertical screw conveyor according to claim 3, characterized in that: The top end of the conveying chamber (10) of the spiral conveyor (1) is sealed by a top bearing assembly (15), and the bottom end is sealed by a bottom bearing assembly (16).

5. A wet material conveying method of a double vertical screw conveyor according to claim 4, characterized in that: When the initial wet material enters the conveying chamber (10) through the inlet (1a), the material initially entering the conveying chamber (10) will slide down due to the temporary poor conveying effect of the empty state in the conveying chamber (10), and thus a material accumulation effect will be formed at the bottom end of the conveying chamber (10), making the wet material prone to caking near the inlet (1a) and causing blockage, affecting the continuous entry of the material; At this time, in the cutting device (2) near the inlet (1a), the rotating part (22) driven by the rotating spiral shaft (12) rotates through the friction contact with the inner wall of the conveying chamber (10), making the cutting part (23) rotate with the rotating part (22) and circumferential rotation around the spiral shaft (12), cutting and crushing the caked wet material near the inlet (1a), avoiding the caking of the wet material and blocking the conveying chamber (10), ensuring the smoothness of the material conveying and improving the material conveying efficiency; ​ When the wet material is conveyed to the discharge port (1b) along the conveying cavity (10), the wet material to be discharged at the top hinders the subsequent rapid advancement of the wet material to the discharge port (1b), thereby forming a material accumulation effect at the top end of the conveying cavity (10), so that the wet material is prone to caking near the discharge port (1b) and blocking, affecting the continuous discharge of the material; At this time, in the cutting device (2) near the discharge port (1b), the rotating member (22) driven by the rotating screw shaft (12) rotates by frictionally contacting the inner wall of the conveying cavity (10), so that the cutting member (23) rotates with the rotating member (22) and rotates circumferentially around the screw shaft (12), cutting and crushing the caked wet material near the discharge port (1b), avoiding the caking of the wet material to block the conveying cavity (10), ensuring the smoothness of the material conveying, and improving the material conveying efficiency.

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