A kneading element for a spiral stirring assembly and a spiral stirring device

Abstract

The application relates to the technical field of stirring assemblies, in particular to a kneading and pressing piece for a spiral stirring assembly and a spiral stirring device. A first aspect is a kneading and pressing piece for a spiral stirring assembly, which comprises a connecting part and a kneading and pressing head, the kneading and pressing head is connected to one end of the connecting part, and the kneading and pressing head is used for kneading and pressing raw materials. A second aspect is a spiral stirring device, which comprises a stirring cylinder, the kneading and pressing head is arranged in the stirring cylinder, a kneading and pressing space is formed between the outer wall of the kneading and pressing head and the inner wall of the stirring cylinder, the kneading and pressing head can rotate along the inside of the stirring cylinder, the kneading and pressing head is used for kneading and pressing the raw materials in the kneading and pressing space along the inner wall of the stirring cylinder, and the kneading and pressing head is used for recombining the raw materials adhered to the inner wall of the stirring cylinder to form an integral whole.

Description

Technical Field

[0001] This application relates to the technical field of mixing components, and in particular to a kneading component for use in a spiral mixing assembly and a spiral mixing device. Background Technology

[0002] A spiral mixing assembly is a mixing element that is installed inside a mixing drum. The spiral mixing assembly includes a mixing shaft and spiral blades. The mixing shaft is rotatably connected inside the mixing drum, and the spiral blades are arranged around the mixing shaft. When raw materials are placed inside the mixing drum, the rotation of the mixing shaft drives the spiral blades to rotate. When the spiral blades rotate, they can push the raw materials along the direction of the mixing shaft, thereby achieving overall mixing and movement of the raw materials.

[0003] To reduce mechanical jamming and wear between the spiral blades and the inner wall of the mixing drum, a gap is provided between the spiral blades and the inner wall of the mixing drum. When the raw material is a slurry, it is easy for the raw material to stick to the inner wall of the mixing drum during the mixing process, resulting in uneven mixing of the raw material in the mixing drum. Furthermore, the raw material sticking to the inner wall of the mixing drum is difficult to feed. Summary of the Invention

[0004] To reduce the adhesion of raw materials to the inner wall of the mixing drum, this application provides a kneading component and a spiral mixing device for use in a spiral mixing assembly.

[0005] Firstly, this application provides a kneading component for use in a spiral mixing assembly, employing the following technical solution: A kneading component for use in a spiral mixing assembly includes a connecting part and a kneading head, the kneading head being connected to one end of the connecting part and used for kneading raw materials.

[0006] By adopting the above technical solution, the connecting part serves to install the kneading head, which can knead the raw material. The raw material has viscosity and plasticity. By applying pressure to the raw material and coordinating with continuous kneading action, the raw material adhering to the inner wall of the mixing drum is re-interwoven and fused, and finally the raw material adhering to the inner wall of the mixing drum is recombined into a continuous and uniform whole, thereby reducing the situation of raw material adhering to the inner wall of the mixing drum.

[0007] Preferably, the outer wall of the kneading head has an arc structure, and the outer wall of the kneading head kneads the raw material.

[0008] By adopting the above technical solution, the arc-shaped structure of the outer wall of the kneading head is adapted to the arc-shaped inner wall of the mixing drum, so that the direction and magnitude of the kneading pressure applied to the raw material by the outer wall of the kneading head and the inner wall of the mixing drum are more balanced, which can better knead the raw material and better recombine the raw material adhering to the inner wall of the mixing drum to form a whole, reducing the situation of raw material adhering to the inner wall of the mixing drum.

[0009] Preferably, the kneading head includes a roller, which is rotatably connected to one end of the connecting part, and the roller can rotate when kneading the raw materials.

[0010] By adopting the above technical solution, when the outer wall of the drum kneads the raw material, the resistance generated by the raw material on the drum during the kneading process causes the drum to rotate. The rotation of the drum can play a role in unloading force, which can reduce the resistance of the raw material on the drum and the part acting on the connection. This can reduce the burden on the mixing component during kneading, thereby improving the service life of the equipment.

[0011] Preferably, the roller and the connecting part are detachably connected.

[0012] By adopting the above technical solution, the roller and the connecting part are detachably connected, which facilitates the subsequent maintenance and replacement of the roller.

[0013] Preferably, the roller includes a connecting cover and a rotating sleeve. The connecting cover is detachably connected to one end of the connecting portion, and the rotating sleeve is movably sleeved on the outer wall of the connecting cover, with the rotating sleeve positioned between the side wall of the connecting cover and the connecting portion. By adopting the above technical solution, the rotating sleeve is movably sleeved on the outer wall of the connecting cover, so that the movable sleeve can rotate around the outer wall of the rotating sleeve. The outer wall of the movable sleeve kneads and presses the raw material. The rotating sleeve is limited between the side wall of the connecting cover and the connecting part, which can reduce the situation where the rotating sleeve slips out of the outer wall of the connecting cover. The connecting cover is detachably connected to one end of the connecting part. When the connecting cover is disassembled, the rotating sleeve can be disassembled, which facilitates the maintenance or replacement of the rotating sleeve.

[0014] Preferably, the kneading head includes a kneading plate, which is connected to the end of the connecting part away from the stirring shaft, and the width of the end of the kneading plate in the rotation direction is smaller than the width of the middle part.

[0015] By adopting the above technical solution, the width of the end of the kneading plate in the rotation direction is smaller than the width of the middle part. This results in a smaller contact area between the kneading plate and the raw material when the end of the kneading plate in the rotation direction breaks the raw material during the rotation process. This reduces the resistance generated by the raw material on the kneading plate, thereby reducing the burden on the mixing components caused by the resistance being transmitted to the connecting part, and improving the service life of the equipment.

[0016] Preferably, the two ends of the kneading plate are staggered in the direction of rotation, and the path of the kneading plate when kneading the raw material is inclined.

[0017] By adopting the above technical solution, the raw material moves along the long side of the spiral stirring assembly under the push of the spiral stirring assembly. The two ends of the kneading plate are staggered in the rotation direction, so that the path of the kneading plate when kneading the raw material is inclined. Compared with the path formed by a similar spindle structure that is perpendicular to the direction of raw material movement, the vertical path will cause severe raw material separation, resulting in pressure difference resistance. The inclined path of this application can delay raw material separation and significantly reduce pressure difference resistance. This allows the kneading plate to reduce the resistance of the raw material to the kneading plate during the kneading process, thereby further reducing the burden on the stirring shaft caused by the resistance being transmitted to the connection part.

[0018] Secondly, this application provides a spiral mixing device, including a mixing drum, a kneading head disposed inside the mixing drum, a kneading space formed between the outer wall of the kneading head and the inner wall of the mixing drum, the kneading head being able to rotate along the inside of the mixing drum, the kneading head kneading the raw materials in the kneading space along the inner wall of the mixing drum, the kneading head being used to knead and recombine the raw materials adhering to the inner wall of the mixing drum into a whole.

[0019] By adopting the above technical solution, when the raw material moves from the space between the outer wall of the kneading head and the inner wall of the mixing drum, the kneading head rotates along the inside of the mixing drum, and the outer wall of the kneading head and the inner wall of the mixing drum knead the raw material. The raw material has viscosity and plasticity. By applying pressure to the raw material and coordinating with continuous kneading action, the raw material adhering to the inner wall of the mixing drum is re-interwoven and fused. At the same time, water migrates under pressure and plays a key adhesive role. Finally, the raw material adhering to the inner wall of the mixing drum is recombined into a continuous and uniform whole, thereby reducing the situation of raw material adhering to the inner wall of the mixing drum.

[0020] Preferably, a stirring shaft is provided inside the stirring drum, and kneading heads are provided on the outer wall of the stirring shaft. There are multiple kneading heads, which are distributed along the long side of the stirring shaft. More preferably, the multiple kneading heads are distributed in a spiral manner along the long side of the stirring shaft.

[0021] By adopting the above technical solution, the kneading head is set on the outer wall of the stirring shaft, so that the kneading head can rotate with the rotation of the stirring shaft, thereby saving the structure of driving the kneading head to rotate. At the same time, it can also reduce the mutual interference between the spiral blades set on the outer wall of the stirring shaft and the kneading head during rotation. The kneading head is distributed in a spiral manner along the long side of the stirring shaft, so that multiple kneading heads and the stirring shaft form a spiral channel, which can stir the raw materials from another angle, thereby improving the mixing effect of the raw materials.

[0022] Preferably, the distance between the outer wall of the kneading head and the inner wall of the mixing drum is less than the distance between the outer wall of the kneading head and the outer wall of the mixing shaft.

[0023] By adopting the above technical solution, the distance between the outer wall of the kneading head and the inner wall of the mixing drum is less than the distance between the outer wall of the kneading head and the outer wall of the mixing shaft. According to the law of conservation of mass in continuous flow, in the steady flow of incompressible fluid, the mass flow rate of the fluid through different cross sections is conserved. When the cross-sectional area through which the fluid passes decreases, the flow velocity will increase. Therefore, the speed of the raw material will increase when it flows through the space between the outer wall of the kneading head and the inner wall of the mixing drum, thereby making the raw material mix more evenly.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The connecting part serves to install the kneading head, which can knead the raw materials. The raw materials have stickiness and plasticity. By applying pressure to the raw materials and coordinating with continuous kneading action, the raw materials adhering to the inner wall of the mixing drum are re-interwoven and fused, and finally the raw materials adhering to the inner wall of the mixing drum are re-combined into a continuous and uniform whole, thereby reducing the situation of raw materials sticking to the inner wall of the mixing drum.

[0025] 2. As the raw material moves through the space between the outer wall of the kneading head and the inner wall of the mixing drum, the kneading head rotates along the inside of the mixing drum. The outer wall of the kneading head and the inner wall of the mixing drum knead the raw material. The raw material has viscosity and plasticity. By applying pressure to the raw material and coordinating with continuous kneading action, the raw material adhering to the inner wall of the mixing drum is re-interwoven and fused, and finally the raw material adhering to the inner wall of the mixing drum is re-combined into a continuous and uniform whole, thereby reducing the situation of raw material adhering to the inner wall of the mixing drum. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the internal structure of Embodiment 1 of this application.

[0027] Figure 2 This is a partial structural schematic diagram of Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram of the kneading head in Embodiment 1 of this application.

[0029] Figure 4 This is a cross-sectional view of the kneading head in Embodiment 1 of this application.

[0030] Figure 5 This is a schematic diagram of the internal structure of Embodiment 2 of this application.

[0031] Figure 6 This is a schematic diagram of the kneading head in Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Connecting rod; 2. Kneading head; 21. Connecting column; 22. Roller; 221. Abutment plate; 222. Sleeve plate; 223. Rotating sleeve; 23. Bolt; 24. Kneading plate; 3. Stirring shaft; 4. Stirring cylinder; 5. Spiral blade. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses a kneading component and a spiral mixing device for use in a spiral mixing assembly.

[0035] Example 1: Reference Figure 1 and Figure 2 A kneading component for use on a spiral mixing assembly and a spiral mixing device are disclosed. The kneading component is disposed on the outer wall of the mixing shaft 3, and a kneading space is formed between the outer wall of the kneading component and the inner wall of the mixing cylinder 4. There are multiple kneading components, which are distributed in a spiral manner along the long side of the mixing shaft 3. The spiral formed by the multiple kneading components is opposite to the spiral formed by the spiral blades 5, so that a spiral channel is formed between the multiple kneading components and the mixing shaft 3, thereby improving the mixing effect of the raw materials. Depending on the scenario, the multiple kneading components can also be randomly distributed along the long side of the mixing shaft 3, or the multiple kneading components can be distributed at opposite ends of the spiral blades 5, so that the kneading components and the spiral blades 5 can ultimately achieve the effect of being staggered and not interfering with each other.

[0036] The kneading component includes a connecting part and a kneading head 2. In this embodiment, the connecting part is a connecting rod 1, which is fixed to the outer wall of the stirring shaft 3. The extending direction of the connecting rod 1 is perpendicular to the centerline of the stirring shaft 3. The kneading head 2 is connected to the end of the connecting rod 1 away from the stirring shaft 3. The outer wall of the kneading head 2 has an arc-shaped structure. When the stirring shaft 3 rotates, the rotation of the stirring shaft 3 drives the spiral blades 5 to rotate. The raw material moves with the rotation of the spiral blades 5. The raw material moves along the space between the spiral blades 5 and the stirring shaft 3 and the space between the kneading head 2 and the inner wall of the stirring cylinder 4.

[0037] As the raw material moves through the space between the outer wall of the kneading head 2 and the inner wall of the mixing drum 4, the kneading head 2 rotates with the mixing shaft 3. During this process, the outer wall of the kneading head 2 and the inner wall of the mixing drum 4 knead the raw material. The raw material has viscosity and plasticity. By applying pressure to the raw material and coordinating with continuous kneading action, the raw material adhering to the inner wall of the mixing drum 4 is re-interwoven and fused. At the same time, moisture migrates under pressure and plays a key adhesive role. Ultimately, the raw material adhering to the inner wall of the mixing drum 4 is recombined into a continuous and uniform whole, thereby reducing the amount of raw material adhering to the inner wall of the mixing drum 4.

[0038] Reference Figure 1The distance between the outer wall of the kneading head 2 and the inner wall of the mixing drum 4 is relatively small, and the distance between the outer wall of the kneading head 2 and the inner wall of the mixing drum 4 is smaller than the distance between the outer wall of the kneading head 2 and the outer wall of the mixing shaft 3. According to the law of conservation of mass in the continuous flow mode, in the steady flow of incompressible fluid, the mass flow rate of the fluid through different cross sections is conserved. When the cross-sectional area through which the fluid passes decreases, the flow velocity will increase. Therefore, the speed of the raw material will increase when it flows through the space between the outer wall of the kneading head 2 and the inner wall of the mixing drum 4, which can make the raw material mix more evenly.

[0039] Reference Figure 3 and Figure 4 In this embodiment, the kneading head 2 includes a roller 22, which is rotatably connected to the end of the connecting rod 1 away from the stirring shaft 3. A connecting column 21 is fixed to the end of the connecting rod 1 away from the stirring shaft 3. The connecting column 21 is cylindrical and extends in a direction parallel to the direction of the stirring shaft 3. The end of the connecting rod 1 away from the stirring shaft 3 is fixedly inserted into the connecting column 21. The connecting rod 1 is inserted into the middle of the connecting column 21, and the roller 22 is rotatably connected to the outer wall of the connecting column 21.

[0040] The roller 22 includes a connecting cover and a rotating sleeve 223. The connecting cover includes an abutment plate 221 and a sleeve plate 222. The diameter of the abutment plate 221 is the same as the diameter of the connecting post 21. The sleeve plate 222 is an annular plate, and the outer diameter of the sleeve plate 222 is smaller than the diameter of the abutment plate 221. The sleeve plate 222 is fixed to the side wall of the abutment plate 221. The abutment plate 221 and the sleeve plate 222 are concentrically arranged. The rotating sleeve 223 is movably sleeved on the outer wall of the sleeve plate 222. The outer wall of the rotating sleeve 223 protrudes from the outer wall of the abutment plate 221. The outer wall of the connecting post 21 has an installation opening. The mounting groove is located at one end of the connecting column 21 and is set along the circumference of the connecting column 21. The sleeve plate 222 is fitted on the outer wall of the connecting column 21 and is located in the mounting groove, so that the connecting cover is inserted into one end of the connecting column 21. The inner wall of the abutment plate 221 and one side of the connecting column 21 limit the rotating sleeve 223, so that the rotating sleeve 223 is rotatably connected between the abutment plate 221 and the connecting column 21, thereby making the roller 22 and the connecting rod 1 detachable, which facilitates the subsequent maintenance and replacement of the rotating sleeve 223.

[0041] A connector is provided on one side of the abutment plate 221. In this embodiment, the connector is a bolt 23. Depending on the scenario, the connector can also be a screw. One end of the bolt 23 passes through both the side wall of the abutment plate 221 and one side of the connecting column 21. The abutment plate 221 and the connecting column 21 are fixed together by the bolt 23, which can further improve the connection stability between the abutment plate 221 and the connecting column 21.

[0042] There are two rollers 22, which are distributed at both ends of the connecting column 21. When the stirring shaft 3 drives the kneading head 2 to rotate, the outer wall of the rotating sleeve 223 and the inner wall of the stirring drum 4 knead the raw material. During the kneading process of the rotating sleeve 223, the resistance generated by the raw material on the rotating sleeve 223 causes the rotating sleeve 223 to rotate. The rotation of the rotating sleeve 223 can play a role in relieving force, which can reduce the part of the resistance of the raw material on the rotating sleeve 223 that is applied to the connecting rod 1, thereby reducing the burden on the stirring shaft 3 when the kneading component rotates, and thus improving the service life of the equipment.

[0043] In other embodiments, the roller 22 can also be a cylindrical structure, with an annular collar fixed at the end of the connecting rod 1 away from the stirring shaft 3, and the roller 22 movably sleeved on the outer wall of the collar, thereby achieving the effect of the roller 22 being rotatably connected to one end of the connecting rod 1.

[0044] Example 2: The difference between this example and Example 1 is that the structure of the kneading head 2 is different.

[0045] Reference Figure 5 and Figure 6 In this embodiment, the kneading head 2 is a kneading plate 24, which is an arc-shaped plate. The curvature of the kneading plate 24 is adapted to the curvature of the inner wall of the mixing cylinder 4. The path formed by the kneading plate 24 during the rotation of the mixing shaft 3 forms a concentric ring with the inner wall of the mixing cylinder 4, so that the outer wall of the kneading plate 24 and the inner wall of the mixing cylinder 4 can better knead the raw materials.

[0046] The kneading plate 24 is a curved parallelogram structure. The pointed ends of both ends of the long side of the kneading plate 24 are flattened. The long side of the kneading plate 24 is arranged along the circumference of the mixing drum 4, and the long side direction is the rotation direction of the kneading plate. The width at both ends of the long side of the kneading plate 24 is smaller than the width at the middle, so that when one end of the long side of the kneading plate 24 breaks the raw material during rotation, the contact area between the kneading plate 24 and the raw material is smaller, which can reduce the resistance generated by the raw material on the kneading plate 24. Furthermore, the two ends of the kneading plate 24 in the rotation direction are staggered, which allows the kneading plate 24 to knead... The path when pressing raw materials is inclined. The path when kneading raw materials by the kneading plate 24 is inclined. Compared with the path formed by a spindle-shaped structure that is perpendicular to the direction of raw material movement, the vertical path will cause severe raw material separation, resulting in pressure difference resistance. The inclined path of this application can delay raw material separation and significantly reduce pressure difference resistance. This allows the kneading plate 24 to reduce the resistance of the raw material to the kneading plate 24 during the kneading process. In turn, it can reduce the burden on the stirring shaft 3 caused by the resistance being transmitted to the connecting rod 1, thereby improving the service life of the equipment.

[0047] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A kneading component for use in a spiral mixing assembly, characterized in that, It includes a connecting part and a kneading head (2), the kneading head (2) is connected to one end of the connecting part, and the kneading head (2) is used to knead the raw materials; The outer wall of the kneading head (2) has an arc-shaped structure, and the outer wall of the kneading head (2) kneads the raw material; The kneading head (2) includes a roller (22), which is rotatably connected to one end of the connecting part. The roller (22) can rotate when kneading the raw materials.

2. The kneading component for a spiral mixing assembly according to claim 1, characterized in that, The roller (22) is detachably connected to the connecting part.

3. The kneading component for a spiral mixing assembly according to claim 2, characterized in that, The roller (22) includes a connecting cover and a rotating sleeve (223). The connecting cover is detachably connected to one end of the connecting part, and the rotating sleeve (223) is movably sleeved on the outer wall of the connecting cover. The rotating sleeve (223) is limited between the side wall of the connecting cover and the connecting part.

4. The kneading component for a spiral mixing assembly according to claim 3, characterized in that, The kneading head (2) includes a kneading plate (24), which is connected to one end of the connecting part. The width of the end of the kneading plate (24) in the rotation direction is smaller than the width of the middle part.

5. The kneading component for a spiral mixing assembly according to claim 4, characterized in that, The two ends of the kneading plate (24) are staggered in the rotation direction, and the path of the kneading plate (24) when kneading the raw material is inclined.

6. A spiral mixing device, comprising a kneading component for the spiral mixing assembly as described in any one of claims 1-5, characterized in that, It includes a mixing drum (4), a kneading head (2) is set inside the mixing drum (4), a kneading space is formed between the outer wall of the kneading head (2) and the inner wall of the mixing drum (4), the kneading head (2) can rotate along the inside of the mixing drum (4), the kneading head (2) kneads the raw materials in the kneading space along the inner wall of the mixing drum (4), and the kneading head (2) is used to knead and recombine the raw materials adhering to the inner wall of the mixing drum (4) to form a whole.

7. A spiral mixing device according to claim 6, characterized in that, A stirring shaft (3) is provided inside the stirring drum (4), and a kneading head (2) is provided on the outer wall of the stirring shaft (3). There are multiple kneading heads (2), which are distributed along the long side of the stirring shaft (3). More preferably, the multiple kneading heads (2) are distributed in a spiral manner along the long side of the stirring shaft (3).

8. The spiral mixing device according to claim 7, characterized in that, The distance between the outer wall of the kneading head (2) and the inner wall of the mixing drum (4) is less than the distance between the outer wall of the kneading head (2) and the outer wall of the mixing shaft (3).

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