Efficient homogenizing kneading machine

Abstract

The utility model relates to an efficient homogenizing kneading machine, and belongs to the technical field of kneading equipment. The mixing and kneading device comprises a mixing and kneading cylinder body and mixing and kneading stirring cutters arranged in the mixing and kneading cylinder body, the mixing and kneading stirring cutters rotate to be used for mixing materials in the mixing and kneading cylinder body, the mixing and kneading stirring cutters comprise the left stirring cutter and the right stirring cutter, the left stirring cutter and the right stirring cutter both rotate inwards, and under the action of the left stirring cutter and the right stirring cutter, the materials in the mixing and kneading cylinder body are mixed. Materials in the mixing and kneading cylinder body do axial movement from the middle part of the mixing and kneading cylinder body to the two ends of the mixing and kneading cylinder body. The left stirring cutter and the right stirring cutter are opposite in rotation direction and rotate inwards, and materials move from the middle of the mixing and kneading cylinder body to the two ends in the axial direction, so that the axial movement direction of the materials is changed, the distributed, distributed and kneading type mixing effect is enhanced, the efficient, uniform and high-quality mixing effect of the materials is achieved, and the mixing effect of the materials is improved. The mixing and kneading effect is enhanced, the mixing and kneading time is shortened, and the mixing and kneading efficiency and the final product quality of the mixed and kneaded materials are improved.

Description

Technical Field

[0001] The utility model relates to a high-efficiency homogenizing kneading machine, belonging to the technical field of kneading equipment. Background Art

[0002] A kneader is a device that uniformly mixes solid materials (such as carbonaceous materials) with binders at a certain temperature while applying shear force and extrusion force to achieve a kneading effect.

[0003] The kneading machine is a horizontal double-shaft double-kneading chamber cylinder parallel structure. Two pairs of stirring blades are respectively arranged in the kneading cylinder, and their rotation axes are arranged in parallel. When working, the stirring blades are driven by the motor through the transmission system, and rotate around the stirring blade axis to drive the mixed material to move. The material mixing is achieved through the combined action of the stirring blade and the kneading cylinder.

[0004] The axial movement of the material along the axis of the agitator in the existing kneading equipment is: the material moves from both ends of the cylinder body to the middle of the cylinder body under the action of the two agitators; or, a part of the material moves from the two ends of the cylinder body to the middle of the cylinder body under the action of one agitator, and the other part of the material moves from the middle of the cylinder body to the two ends of the cylinder body under the action of the other agitator. In the first material movement mode, since the material moves from the two ends of the cylinder body to the middle of the cylinder body, the material accumulates in the middle of the cylinder body, and thus it is impossible to form a reciprocating circulation movement of the material along the axis of the agitator. On the other hand, since the axial extrusion effect occurs between the materials, it is impossible to exert a strong axial extrusion effect on the materials, thereby affecting the mixing effect of the materials, resulting in affecting the mixing quality of the materials. In the second material movement mode, part of the material moves from the two ends of the cylinder body to the middle of the cylinder body, and the other part of the material moves from the middle of the cylinder body to the two ends of the cylinder body. Compared with the first movement mode, the bidirectional movement of the material improves the axial circulation movement of the material in the first movement mode. Since part of the material extrusion occurs between the material and the end plate of the fixed kneading cylinder body, the axial extrusion effect on the material is improved. However, the second movement mode only achieves partial improvement. There are still defects such as insufficient axial circulation movement of the material and insufficient axial extrusion effect on the material. Therefore, the problem of achieving good dispersion, distribution and kneading mixing is not completely solved. Summary of the invention

[0005] The utility model aims at the deficiencies in the prior art and provides a high-efficiency homogenizing kneading machine.

[0006] The utility model solves the above technical problems with the following technical solutions: a high-efficiency homogenizing kneading machine, comprising a kneading cylinder and a kneading blade arranged in the kneading cylinder, the kneading blade is rotated to mix the materials in the kneading cylinder, the kneading cylinder comprises an end plate, the kneading blade comprises a left blade and a right blade, the left blade and the right blade both rotate inwardly, under the action of the left blade and the right blade, the materials in the kneading cylinder make an axial motion from the middle of the kneading cylinder to the two ends of the kneading cylinder.

[0007] The beneficial effects of the utility model are as follows: the left stirring blade rotates clockwise, and the right stirring blade rotates counterclockwise, the rotation directions of the left stirring blade and the right stirring blade are opposite and both rotate inward, and as the kneading stirring blade rotates, the axial movement of the material is from the middle of the kneading cylinder body to the two ends of the kneading cylinder body, and the kneading stirring blade pushes the material along the axis direction of the stirring blade to shear, disperse and mix the material, and through this dispersion and mixing action, new contact interfaces can be continuously formed between the mixed materials, so as to achieve efficient dispersion and mixing; at the same time, the material moves toward the two ends of the kneading cylinder body under the axial push of the kneading stirring blade, and under the joint action of the kneading stirring blade and the end plates on both sides of the kneading cylinder body, the material is subjected to a strong extrusion and kneading action, and through this extrusion and kneading action, the mixed material can be fully kneaded, so as to achieve high-quality kneading and mixing. ; Moreover, under the action of the kneading blade, the material moves to the two ends of the kneading cylinder. In the process of the material continuously moving toward the end plates on both sides, the material near the end is pushed upward along the end by the material newly entering the area. The material pushed upward accumulates continuously after reaching the upper surface of the whole material. Under the action of gravity, the material on the upper surface of the whole material moves from the end of the cylinder to the middle. After reaching the middle of the cylinder, it is acted upon by the rotating kneading blade. The material re-enters the rotating action range of the blade from the upper surface and is pushed by the kneading blade to move from the middle of the cylinder to the two ends, starting a new cycle, forming a cyclic motion of the material along the axial direction of the kneading blade, thereby ensuring the continuity of the mixing motion of the material in the kneading cylinder, strengthening the distribution mixing effect, and achieving a better overall uniform mixing effect of the material. In addition to the above-mentioned axial motion and circular motion, the material also moves radially along the rotation direction of the kneading blade under the rotation of the kneading blade. The rotation of the kneading blade can shear and disperse the material, and through the shear and dispersion effect, new contact interfaces between various mixed materials are continuously formed to achieve efficient radial dispersion and mixing; at the same time, the radial reciprocating circular motion of the rotating kneading blade to push the material to achieve radial uniform distribution and mixing of the material; and the combined action of the kneading blade and the kneading cylinder body radially extrude and knead the material, and through the extrusion and kneading action, various mixed materials are fully kneaded, thereby achieving high-quality radial kneading and mixing. Through the above-mentioned four material movement modes: axial movement, axial circulation movement, radial movement and radial circulation movement of the material, the flow and kneading effect of the material is better, which is conducive to the dispersion mixing, distribution mixing and kneading mixing of the material, so that the material can be fully and more evenly mixed. In addition, the inward rotation of the kneading blades can effectively reduce the working load of the equipment and improve the working stability and reliability of the equipment. Compared with the prior art, the utility model changes the axial movement direction of the material, thereby realizing the axial circulation distribution mixing movement of the material, strengthening the axial extrusion kneading mixing effect and the axial dispersion mixing movement of the material, thereby realizing efficient, uniform and high-quality mixing of the material, achieving the purpose of strengthening the kneading effect, shortening the kneading time, improving the kneading efficiency and the final product quality of the kneaded material, reducing the working load of the equipment, and ensuring the working stability and reliability of the equipment.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Further, the end plate includes a front end plate and a rear end plate, the left stirring blade includes a left front blade, a left rear blade and a left middle spoke connecting the left front blade and the left rear blade, the left rear blade extends from the rear end plate side to one end of the left middle spoke in a right-handed spiral manner, and the left front blade extends from the other end of the left middle spoke to the front end plate side in a left-handed spiral manner;

[0010] The right stirring blade includes a right front blade, a right rear blade and a right middle spoke connecting the right front blade and the right rear blade, the right rear blade extends from the rear end plate side to one end of the right middle spoke in a left-handed spiral manner, and the right front blade extends from the other end of the right middle spoke to the front end plate side in a right-handed spiral manner.

[0011] The beneficial effect of adopting the above further scheme is that the left rear blade of the left stirring blade is a right-handed spiral, the left front blade is a left-handed spiral, the right rear blade of the right stirring blade is a left-handed spiral, and the right front blade is a right-handed spiral. The blades of the kneading stirring blade adopt the above-mentioned spiral structure, and the left stirring blade rotates clockwise, and the right stirring blade rotates counterclockwise. Both the left and right stirring blades push the material to move from the middle of the kneading cylinder to both ends in the axial direction of the stirring blade. Under the joint action of the left and right stirring blades and the kneading cylinder, an axial circulating motion of the material in the axial direction of the kneading stirring blade is formed, which strengthens the axial dispersed, distributed and kneading mixing effects, and the radial motion and radial circulating motion of the material formed under the rotation of the kneading stirring blade, and its radial dispersed mixing, radial distributed mixing and radial kneading mixing effects work together to achieve efficient, uniform and high-quality kneading of the material.

[0012] Furthermore, the left stirring blade and the right stirring blade are arranged side by side and are tangent to each other, the rotation speed of the left stirring blade is n1, and the rotation speed of the right stirring blade is n2, then n1=n2 or n1≠n2.

[0013] The beneficial effect of adopting the above further scheme is that the left stirring blade and the right stirring blade can be arranged in a side-by-side tangent manner, which can achieve a better stirring blade rotation radial shearing dispersion mixing effect on the material. The left stirring blade and the right stirring blade are placed side by side, and there is a gap between the boundaries of the left stirring blade and the right stirring blade, which reserves space for each to rotate. Because there is no interference in the tangential rotation process of the left stirring blade and the right stirring blade, the rotation speeds of the two can be the same, of course, they can also be different, and can be selected and set according to actual needs.

[0014] Furthermore, the initial phase difference between the left stirring blade and the right stirring blade is 180 degrees.

[0015] The beneficial effect of adopting the above further scheme is that the initial phase difference between the left stirring blade and the right stirring blade based on the same end plate side position is 180 degrees, which can ensure that during the operation of the equipment, the mutual position combination of the two stirring blades for efficient, homogeneous and high-quality mixing appears cyclically, ensuring stable mixing quality.

[0016] Furthermore, the left stirring blade and the right stirring blade intersect side by side, the rotation speed of the left stirring blade is n1, and the rotation speed of the right stirring blade is n2, then n1=n2.

[0017] The beneficial effect of adopting the above further scheme is that the left stirring blade and the right stirring blade can also be arranged in a side-by-side intersecting manner, the diameters of the left stirring blade and the right stirring blade are the same and larger than the center distance between the left stirring blade and the right stirring blade, and when the left and right stirring blades rotate, the rotation ranges of the left and right stirring blades are in an intersecting state, which can achieve a better stirring blade rotation radial distribution mixing effect on the material. In order to avoid interference problems in the intersecting parts, the left stirring blade and the right stirring blade should rotate at a synchronous speed.

[0018] Furthermore, the phase difference between the left stirring blade and the right stirring blade is 90 degrees.

[0019] The beneficial effect of adopting the above further scheme is that the left stirring blade and the right stirring blade have a phase difference of 90 degrees based on the same end plate side position. The left stirring blade and the right stirring blade are arranged side by side, intersecting at the same speed, and having a phase difference of 90 degrees, so as to ensure that during the operation of the equipment, the mutual position combination of the two stirring blades for efficient homogenous and high-quality kneading appears cyclically, and the kneading quality is stable.

[0020] Furthermore, the rotation diameters of the left front blade and the left rear blade are the same; and / or the rotation diameters of the right front blade and the right rear blade are the same.

[0021] The beneficial effect of adopting the above further scheme is that the outer circular rotating bodies of the left and right stirring blades are both cylinders, and the rotating outer circle of the kneading stirring blade can maintain the same radial gap with the inner wall of the kneading cylinder in the axial direction, thereby ensuring that the stirring blade can fully move the material in the kneading cylinder for sufficient mixing, and at the same time, it is beneficial for the stirring blade and the cylinder body to jointly exert radial kneading and mixing effects on the material, thereby improving the kneading quality, and will not significantly increase the equipment load, and ensure the stability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the left and right stirring blades of Embodiment 1 of the utility model;

[0024] Figure 3 This is a schematic diagram of the main structure of the left and right stirring blades of Example 1 of the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of a top view structure;

[0026] Figure 5 for Figure 4 The cross-section along the AA direction;

[0027] Figure 6 for Figure 4 The cross-section along the BB direction;

[0028] Figure 7 for Figure 4 The cross-section along CC direction;

[0029] Figure 8 This is a schematic diagram of the top view of the structure of Embodiment 2 of the present utility model;

[0030] Fig. 9 for Figure 8 The cross section along the DD direction;

[0031] Fig.10 for Figure 8 The cross section along the EE direction;

[0032] Fig.11 for Figure 8 The cross-section along the FF direction;

[0033] Fig.12 This is a schematic diagram of the front view structure of the left and right stirring blades of Example 2 of the utility model;

[0034] Fig.13 for Fig.12 A schematic diagram of a top view structure;

[0035] Fig.14 This is a schematic diagram of the structure of Embodiment 3 of the present utility model;

[0036] Fig.15 This is a schematic diagram of the front view structure of the left and right stirring blades of Example 3 of the utility model;

[0037] Fig.16 for Fig.15 A schematic diagram of a top view structure;

[0038] In the figure, 1, kneading cylinder; 11, front end plate; 12, rear end plate; 2, left stirring blade; 21, left front blade; 22, left rear blade; 23, left middle spoke; 3, right stirring blade; 31, right front blade; 32, right rear blade; 33, right middle spoke. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below in conjunction with examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] Embodiment 1, as Figure 1-Figure 7 As shown, a high-efficiency homogenizing kneading machine comprises a kneading cylinder 1 and a kneading blade disposed in the kneading cylinder 1, wherein the kneading blade rotates to mix the materials in the kneading cylinder 1, the kneading cylinder 1 comprises an end plate, and the kneading blade comprises a left blade 2 and a right blade 3, wherein the left blade 2 and the right blade 3 both rotate inwardly, and under the action of the left blade 2 and the right blade 3, the materials in the kneading cylinder 1 make an axial movement from the middle of the kneading cylinder 1 to the two ends of the kneading cylinder 1. The inward rotation of the two blades can effectively reduce the working load of the equipment and improve the working stability and reliability of the equipment.

[0041] The end plate includes a front end plate 11 and a rear end plate 12, the left stirring blade 2 includes a left front blade 21, a left rear blade 22 and a left middle spoke 23 connecting the left front blade 21 and the left rear blade 22, the left rear blade 22 extends from the rear end plate 12 side to one end of the left middle spoke 23 in a right-handed spiral manner, and the left front blade 21 extends from the other end of the left middle spoke 23 to the front end plate 11 side in a left-handed spiral manner;

[0042] The right stirring blade 3 includes a right front blade 31, a right rear blade 32 and a right middle spoke 33 connecting the right front blade 31 and the right rear blade 32. The right rear blade 32 extends from the rear end plate 12 side to one end of the right middle spoke 33 in a left-handed spiral manner, and the right front blade 31 extends from the other end of the right middle spoke 33 to the front end plate 11 side in a right-handed spiral manner. The left rear blade of the left stirring blade is a right-handed spiral, and the left front blade is a left-handed spiral. The right rear blade of the right stirring blade is a left-handed spiral, and the right front blade is a right-handed spiral. The blades of the kneading stirring blade adopt the above-mentioned spiral structure, and the left stirring blade rotates clockwise, and the right stirring blade rotates counterclockwise. Both the left and right stirring blades push the material to move from the middle of the kneading cylinder to both ends in the axial direction of the stirring blade. Under the joint action of the left and right stirring blades and the kneading cylinder, the axial circulation motion of the material in the axial direction of the kneading stirring blade is formed, which strengthens the axial dispersed, distributed and kneading mixing effects. The radial motion and radial circulation motion of the material formed by the rotation of the kneading stirring blade, and its radial dispersed mixing, radial distributed mixing and radial kneading mixing effects work together to achieve efficient, uniform and high-quality kneading of the material.

[0043] The left stirring blade 2 and the right stirring blade 3 are tangent to each other side by side, the rotation speed of the left stirring blade 2 is n1, and the rotation speed of the right stirring blade 3 is n2, then n1=n2 or n1≠n2. A better stirring blade rotation radial shearing dispersion mixing effect can be achieved for the material. The left stirring blade and the right stirring blade are placed side by side, and there is a gap between the boundaries of the left stirring blade and the right stirring blade, and space is reserved for each of them to rotate. Since there is no interference in the tangent rotation process of the left stirring blade and the right stirring blade, the rotation speeds of the two can be the same, of course, they can also be different, and can be selected and set according to actual needs.

[0044] The left front blade 21 and the left rear blade 22 have the same rotation diameter; and / or the right front blade 31 and the right rear blade 32 have the same rotation diameter. The outer circumferential rotating bodies of the left and right stirring blades are both cylindrical, and the rotating outer circumference of the kneading stirring blade can maintain the same radial gap with the inner wall of the kneading cylinder along the axial direction, thereby ensuring that the stirring blade can fully move the materials in the kneading cylinder for full mixing, and at the same time, it is beneficial for the stirring blade and the cylinder to jointly exert radial kneading and mixing effects on the materials, improve the kneading quality, and will not significantly increase the load of the equipment, and ensure the stability of the equipment operation.

[0045] Embodiment 2, as Figure 8-Figure 13 As shown, the left stirring blade 2 and the right stirring blade 3 intersect side by side, the rotation speed of the left stirring blade 2 is n1, and the rotation speed of the right stirring blade 3 is n2, then n1=n2. The diameters of the left stirring blade and the right stirring blade are the same and larger than the center distance between the left stirring blade and the right stirring blade. When the left and right stirring blades rotate, the rotation ranges of the left and right stirring blades are in an intersecting state, which can achieve a better radial distribution mixing effect of the stirring blade rotation on the material. In order to avoid interference problems in the intersecting parts, the left stirring blade and the right stirring blade should rotate at a synchronous speed.

[0046] The phase difference between the left stirring blade 2 and the right stirring blade 3 is 90 degrees. Figure 8 As shown, the left middle spoke 23 of the left stirring blade 2 is close to a vertical state, and the right middle spoke 33 of the right stirring blade 3 is close to a horizontal state. The left stirring blade 2 and the right stirring blade 3 that intersect side by side are installed at 90 degrees to each other. On the one hand, there will be no interference between the left and right stirring blades. On the other hand, when the left stirring blade 2 and the right stirring blade 3 are in action, the materials in the kneading cylinder 1 can achieve rapid circulation exchange in the radial direction, that is, the materials can be better distributed and mixed radially. The rest of the structure is the same as that of Example 1, and will not be described in detail here.

[0047] Embodiment 3, as Figure 14-16 As shown, the left stirring blade 2 and the right stirring blade 3 intersect side by side, the rotation speed of the left stirring blade 2 is n1, and the rotation speed of the right stirring blade 3 is n2, then n1=n2. The phase difference between the left stirring blade 2 and the right stirring blade 3 is 90 degrees. Fig.14As shown, the left center spoke 23 of the left stirring blade 2 is close to a horizontal state, and the right center spoke 33 of the right stirring blade 3 is close to a vertical state. The remaining structures are the same as those in Embodiment 2 and will not be described in detail here.

[0048] In Example 4, the initial phase difference between the left stirring blade 2 and the right stirring blade 3 is 180 degrees. The initial phase difference between the left stirring blade 2 and the right stirring blade 3 based on the same end plate side position is 180 degrees. The left stirring blade 2 and the right stirring blade 3 are arranged side by side with different speeds or tangential with the same speed, and the initial phase difference can be 180 degrees, which can ensure that during the operation of the equipment, the mutual position combination of the two stirring blades for efficient homogenous and high-quality kneading appears cyclically, ensuring the stable kneading quality. The rest of the structure is the same as that of Example 1, and will not be described in detail here.

[0049] Take the kneading of carbon paste as an example; the high-efficiency homogenizing kneading machine is configured with a total kneading cylinder capacity of 5600L, a working volume of 4000L, a stirring blade speed of 12 rpm, and the left and right stirring blades intersecting at the same speed. The same carbon raw material is selected and kneaded for 20 minutes. The carbon material obtained by the utility model high-efficiency homogenizing kneading machine is formed and calcined by a vibration forming machine, and the apparent density of the pre-baked anode produced is 1.59g / cm 3 ;

[0050] The kneading machine of the prior art uses the same carbon raw material to produce carbon materials, which are formed by the vibration forming machine and calcined. The apparent density of the prebaked anode produced is 1.56g / cm 3 ;

[0051] From the apparent density value, we can see that the density difference of the final prebaked anode product produced by the two different kneading technologies is different. Under the same other process conditions, the use of the utility model technology can improve the apparent density of the final prebaked anode product by 0.03g / cm 3 , which proves the kneading effect of the kneading machine of the utility model, and improves the product quality of the final product by improving the kneading effect.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency homogenizing kneading machine, comprising a kneading cylinder (1) and a kneading blade arranged in the kneading cylinder (1), wherein the kneading blade rotates to mix the materials in the kneading cylinder (1), and the kneading cylinder comprises an end plate, characterized in that: The kneading blades comprise a left blade (2) and a right blade (3). The left blade (2) and the right blade (3) both rotate inwards. Under the action of the left blade (2) and the right blade (3), the material in the kneading cylinder (1) makes an axial movement from the middle of the kneading cylinder toward the two ends of the kneading cylinder (1).

2. The high-efficiency homogenizing kneading machine according to claim 1, characterized in that: The end plate comprises a front end plate (11) and a rear end plate (12); the left stirring blade (2) comprises a left front blade (21), a left rear blade (22) and a left middle spoke (23) connecting the left front blade (21) and the left rear blade (22); the left rear blade (22) extends from the side of the rear end plate (12) to one end of the left middle spoke (23) in a right-handed spiral manner; and the left front blade (21) extends from the other end of the left middle spoke (23) to the side of the front end plate (11) in a left-handed spiral manner; The right stirring blade (3) comprises a right front blade (31), a right rear blade (32) and a right middle spoke (33) connecting the right front blade (31) and the right rear blade (32); the right rear blade (32) extends from the side of the rear end plate (12) to one end of the right middle spoke (33) in a left-handed spiral manner, and the right front blade (31) extends from the other end of the right middle spoke (33) to the side of the front end plate (11) in a right-handed spiral manner.

3. The high-efficiency homogenizing kneading machine according to claim 1 or 2, characterized in that: The left stirring blade (2) and the right stirring blade (3) are arranged side by side and are tangent to each other. The rotation speed of the left stirring blade (2) is n1, and the rotation speed of the right stirring blade (3) is n2. Then n1=n2 or n1≠n2.

4. The high-efficiency homogenizing kneading machine according to claim 3, characterized in that: The initial phase difference between the left stirring blade (2) and the right stirring blade (3) is 180 degrees.

5. The high-efficiency homogenizing kneading machine according to claim 1 or 2, characterized in that: The left stirring blade (2) and the right stirring blade (3) are arranged side by side and intersect each other. The rotation speed of the left stirring blade (2) is n1, and the rotation speed of the right stirring blade (3) is n2. Then n1=n2.

6. The high-efficiency homogenizing kneading machine according to claim 5, characterized in that: The phase difference between the left stirring blade (2) and the right stirring blade (3) is 90 degrees.

7. The high-efficiency homogenizing and kneading machine according to claim 2, characterized in that: The left front blade (21) and the left rear blade (22) have the same rotation diameter; and / or the right front blade (31) and the right rear blade (32) have the same rotation diameter.

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