Anti-winding mixer

Abstract

The utility model relates to the technical field of material conveying, in particular to an anti-winding mixer, which comprises a base, a mixing barrel rotatably arranged on the base and a driving mechanism used for driving the mixing barrel to rotate, one end of the mixing barrel is a feeding end, the other end of the mixing barrel is a discharging end, and the feeding end is higher than the discharging end. A mixing and scattering assembly is arranged on the inner wall of the mixing barrel in the direction from the feeding end to the discharging end, the mixing and scattering assembly comprises a segmented spiral piece and a plurality of pushing plates, and the pushing plates are located on the screw pitch of the segmented spiral piece and are arranged at equal intervals in the spiral direction of the segmented spiral piece; and the long edge arrangement direction of the material pushing plate is consistent with the axis direction of the material mixing barrel. The spiral material mixing device can solve the technical problem that the existing spiral material mixing equipment is easy to wind and wrap in the use process, so that the materials are not uniformly mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to an anti-winding mixer. Background Art

[0002] Kitchen waste and food waste usually refer to organic waste from the catering industry and household kitchens, mainly including food residues, vegetable peels, leftovers, catering packaging and utensils, and other mixed garbage; among them, catering packaging and utensils mainly include disposable tableware, plastic bags, plastic bottles, glass bottles, and metal boxes, etc., and the composition of other mixed garbage is more complex, such as fiber fabrics, metal utensils, plastic products, and bamboo and wood products, etc.; due to problems such as high moisture content, low calorific value, and complex composition, the above-mentioned garbage cannot meet the entry requirements for incineration or landfill, so dry anaerobic fermentation is usually used for treatment.

[0003] At present, before anaerobic fermentation treatment, it is first necessary to mix various types of garbage such as kitchen waste small coarse residues, kitchen waste biogas residues, and food waste organic matter evenly by a mixer to ensure the subsequent fermentation effect. However, during the actual mixing process, the mixing equipment often gets entangled and blocked, resulting in uneven mixing of materials; when the unevenly mixed materials enter the fermentation tank, independent areas will be formed in the tank, resulting in a low degree of mixing of strains, and continuous external inoculation is required. Moreover, stratification and sedimentation may also occur, resulting in abnormalities in biochemical systems such as acid-base, ammonia nitrogen, and TS in the fermentation tank, a decrease in gas production rate, and affecting normal production operation. Therefore, uniform mixing in the early stage is crucial. Summary of the Utility Model

[0004] The utility model provides an anti-winding mixer, which can solve the technical problem that the existing spiral mixing equipment is prone to winding and entrapment during use, resulting in uneven mixing of materials.

[0005] The present application provides the following technical solutions:

[0006] An anti-winding mixer includes a base, a mixing cylinder rotatably arranged on the base, and a driving mechanism for driving the mixing cylinder to rotate. One end of the mixing cylinder is the feeding end, and the other end is the discharging end. The feeding end is higher than the discharging end. A mixing and dispersing assembly is arranged on the inner wall of the mixing cylinder along the direction from the feeding end to the discharging end. The mixing and dispersing assembly includes segmented spiral blades and pushing plates. There are several pushing plates, which are located on the pitch of the segmented spiral blades and are arranged equidistantly along the spiral direction of the segmented spiral blades, and the arrangement direction of the long sides of the pushing plates is consistent with the axial direction of the mixing cylinder.

[0007] Advantageous Effects

[0008] 1. The segmented spiral sheet has a good dispersing effect: When the mixed materials enter the mixing cylinder, they tumble and mix inside the cylinder as the mixing cylinder rotates. The strip-shaped or agglomerated mixed garbage is continuously interrupted by the intermittent spiral sheets during the process of being conveyed forward, so that the strip-shaped materials are not easily entangled and agglomerated, which is conducive to dispersing and breaking them up, avoiding material aggregation, and thus improving the mixing uniformity.

[0009] 2. The pushing plate is conducive to further mixing the materials: When the materials rotate to a high position and fall downward, they land on the pushing plate. On the one hand, it can break up the materials, and on the other hand, the materials landing on the pushing plate will be lifted up and fall again as the mixing cylinder rotates, so as to achieve more uniform mixing; in addition, setting the pushing plate along the spiral direction of the segmented spiral sheet can assist more materials to be lifted up and dropped repeatedly for uniform mixing, and will not affect the conveying speed of the materials.

[0010] Furthermore, each pushing plate is arranged in the direction close to the next segmented spiral sheet, and forms a first mixing gap with the next segmented spiral sheet and a second mixing gap with the previous segmented spiral sheet, and the second mixing gap is larger than the first mixing gap.

[0011] Beneficial effects: According to the above setting scheme, when the materials fall from the highest position, a part of the materials fall through the first mixing gap to mix with the materials at the front end and are conveyed forward by the segmented spiral sheet, and the other part of the materials fall through the second mixing gap, which is conducive to remixing with the materials at the rear end, so as to achieve multiple mixing of the materials and is conducive to uniform mixing; in addition, by setting the first mixing gap and the second mixing gap, it can also prevent the materials from accumulating in the conveying groove formed by the pushing plate and the segmented spiral sheet, and can solve the problem of material accumulation and blockage.

[0012] Furthermore, a conveying section is also arranged inside the mixing cylinder. The conveying section is located at the rear end of the mixing and dispersing assembly. The length of the conveying section is less than or equal to one-third of the length of the mixing cylinder, and a continuous spiral sheet is arranged inside the conveying section.

[0013] Beneficial effects: Setting the length of the conveying section to one-third or less of the length of the mixing cylinder can reduce the sedimentation distance of heavy substances such as sand and gravel during the conveying process, reduce the possibility of their blockage at the bottom of the mixing cylinder, and at the same time reduce the problem of material re-winding during the spiral conveying process; in addition, arranging a section of continuous spiral sheet at the discharge end is conducive to ensuring the conveying efficiency and the feeding quantity.

[0014] Furthermore, the aperture of the feeding end of the mixing cylinder is larger than that of the discharge end, and the taper of the mixing cylinder is 2 - 4°.

[0015] Beneficial effects: Setting the taper of the mixing cylinder to 2 - 4° is conducive to ensuring the mixing effect and the conveying efficiency, and avoiding the problem of insufficient mixing caused by fast conveying.

[0016] Furthermore, the pressure angle of the continuous spiral sheet and the segmented spiral sheet is 15-20°.

[0017] Beneficial effect: By setting the pressure angle of the spiral blade to 15-20°, the material pushing efficiency and the material breaking effect of the spiral blade can be guaranteed at the same time; when the pressure angle is greater than 20°, although the material conveying efficiency can be improved, it is not conducive to material breaking and mixing. When the pressure angle is less than 15°, it is not conducive to material conveying and is prone to increase the risk of blockage due to material aggregation.

[0018] Furthermore, the spiral flight height of the continuous spiral flight and the segmented spiral flight is 45-55 mm.

[0019] Beneficial effect: Setting the height of the spiral blade to 45-55mm is conducive to ensuring the amount of material pushed, while reducing the risk of material winding and hanging on the spiral blade, and reducing the problems of blockage and stagnation.

[0020] Furthermore, the spiral sheets of the continuous spiral sheets and the segmented spiral sheets are in a trapezoidal shape, and the chamfered edges of the trapezoids are in an arc shape.

[0021] Beneficial effect: By chamfering the edges of the trapezoidal spiral blades into arc shapes, the risk of materials hanging on the spiral blades can be further reduced.

[0022] Furthermore, the upper cross section of the push plate is a semi-elliptical structure.

[0023] Beneficial effects: According to the above-mentioned structure, when the material falls onto the arc surface, it is easy to separate from the push plate under the action of gravity, which can reduce the problem of sticky materials adhering to and entangled on the push plate; and the tip of the semi-elliptical structure can break up the material, thereby achieving the purpose of effective pushing, breaking up and mixing.

[0024] Furthermore, the driving mechanism includes a motor, a driving gear connected to the motor, and a driven gear sleeved outside the mixing barrel, and the driving gear is meshed with the driven gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the anti-winding mixer of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the mixing cylinder;

[0027] Figure 3 is a perspective view of a mixing barrel;

[0028] Figure 4 It is a structural schematic diagram of the push plate. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The reference signs in the attached drawings of the description include: base 1, mixing cylinder 2, feed end 21, discharge end 22, motor 3, driving gear 31, driven gear 32, segmented spiral blade 4, pushing plate 5, first mixing gap 501, second mixing gap 502, arc surface 51, pressure angle a.

[0031] Embodiment 1

[0032] As Figure 1 shown, an anti-winding mixer includes a base 1, a mixing cylinder 2 rotatably arranged on the base 1, and a driving mechanism for driving the mixing cylinder 2 to rotate. Specifically, the driving mechanism includes a motor 3, a driving gear 31 connected to the motor 3, and a driven gear 32 sleeved outside the mixing cylinder 2. The motor 3 and the driving gear 31 are arranged on the base 1, and the driving gear 31 meshes with the driven gear 32. During use, the motor 3 is used to drive the driving gear 31 to rotate, so that the driving gear 31 drives the driven gear 32 to rotate, and then the mixing cylinder 2 makes a rotational motion.

[0033] One end of the mixing cylinder 2 is the feed end 21, and the other end is the discharge end 22. In this embodiment, in order to reduce material jamming and blockage, the mixing cylinder 2 is inclined so that the feed end 21 is higher than the discharge end 22; more preferably, in this embodiment, the aperture of the feed end 21 of the mixing cylinder 2 is larger than that of the discharge end 22, and the taper of the mixing cylinder 2 is 2 - 4°, and this embodiment is preferably set to 2°.

[0034] As Figures 2-3 shown, a mixing and dispersing assembly is arranged on the inner wall of the mixing cylinder 2 along the direction from the feed end 21 to the discharge end 22. The mixing and dispersing assembly includes a segmented spiral blade 4 and a pushing plate 5. There are several pushing plates 5, which are located on the pitch of the segmented spiral blade 4 and are arranged equidistantly along the spiral direction of the segmented spiral blade 4, and the arrangement direction of the long sides of the pushing plates 5 is consistent with the axial direction of the mixing cylinder 2. More preferably, as Figure 3 shown, in this embodiment, each pushing plate 5 is arranged towards the direction close to the next segmented spiral blade 4, and forms a first mixing gap 501 with the next segmented spiral blade 4 and a second mixing gap 502 with the previous segmented spiral blade 4, and the second mixing gap 502 is larger than the first mixing gap 501.

[0035] Specifically, as Figure 4As shown, on both sides of the top of the pusher plate 5 along its length direction, there are arc surfaces 51. The two arc surfaces 51 form a semi-elliptical structure. When the material falls onto the arc surface 51 of the pusher plate 5, it is very easy to break away from the pusher plate 5 under the action of gravity, thereby reducing the problem of sticky materials adhering to and winding around the pusher plate 5. Moreover, the tip of the semi-elliptical structure can break up the material, thus achieving the purpose of effective pushing, breaking up, and mixing. More preferably, the cross-sectional shape of the segmented spiral blade 4 in this embodiment is the same as the cross-sectional shape of the pusher plate 5, or the segmented spiral blade 4 is set as a trapezoidal structure, and the edges of the trapezoid are chamfered into arc shapes. When the material falls onto the spiral blade, the risk of the material hanging on the edges of the spiral blade can be reduced.

[0036] Specifically, in this embodiment, the pressure angle a of the segmented spiral blade 4 in the mixing cylinder 2 can be set to 15°, 16°, 18°, 20°. In this embodiment, it is preferably set to 20°, which can ensure both the material pushing efficiency and the effect of the spiral blade on breaking up the material. The height of the spiral blade of the segmented spiral blade 4 can be set to 45mm, 50mm, 55mm. In this embodiment, it is preferably set to 50mm, which is beneficial to ensuring the material pushing amount, while reducing the risk of the material winding and hanging on the spiral blade and reducing the problems of blockage and jamming.

[0037] By using the mixer of the present application to mix various types of garbage such as kitchen waste coarse residue, kitchen waste biogas residue, and kitchen waste organic matter, the problem of the garbage being wound and wrapped can be effectively reduced, the uniformity of the mixture between the materials is ensured, the problem of the materials forming independent areas after entering the fermentation tank is reduced, and the normal production operation of the system is ensured. Moreover, due to reducing the problem of the materials winding into groups and jamming, the present application effectively reduces the number of shutdown and cleaning times, ensures the continuous and stable operation of the equipment, and improves the working efficiency of the mixer.

[0038] Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that a conveying section is further provided in the mixing cylinder 2. The conveying section is located at the rear end of the mixing and breaking-up assembly. The length of the conveying section is less than or equal to one-third of the length of the mixing cylinder 2. A continuous spiral blade is provided in the conveying section. Specifically, the shape, pressure angle a, and the height of the spiral blade of the continuous spiral blade are the same as those of the segmented spiral blade 4.

[0040] The above are only the embodiments of the present utility model. The utility model is not limited to the fields involved in this embodiment case. Common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicability of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An anti-tangling mixer, comprising a base, a mixing cylinder rotatably arranged on the base, and a driving mechanism for driving the mixing cylinder to rotate. One end of the mixing cylinder is a feeding end, and the other end is a discharging end. The feeding end is higher than the discharging end, and it is characterized in that The inner wall of the mixing cylinder is provided with a mixing and dispersing assembly along the direction from the feeding end to the discharging end. The mixing and dispersing assembly includes segmented spiral blades and pushing plates. There are several pushing plates, which are located on the pitch of the segmented spiral blades and are arranged equidistantly along the spiral direction of the segmented spiral blades. Moreover, the arrangement direction of the long sides of the pushing plates is consistent with the axial direction of the mixing cylinder.

2. The anti-tangling mixer according to claim 1, wherein: Each pushing plate is arranged towards the direction close to the next segmented spiral blade, and forms a first mixing gap with the next segmented spiral blade and a second mixing gap with the previous segmented spiral blade. The second mixing gap is larger than the first mixing gap.

3. The anti-tangling mixer according to claim 2, wherein: A conveying section is further arranged in the mixing cylinder. The conveying section is located at the rear end of the mixing and dispersing assembly. The length of the conveying section is less than or equal to one-third of the length of the mixing cylinder. A continuous spiral blade is arranged in the conveying section.

4. The anti-tangling mixer according to claim 3, characterized in that: The aperture of the feeding end of the mixing cylinder is larger than that of the discharging end, and the taper of the mixing cylinder is 2-4°.

5. The anti-tangling mixer according to claim 4, characterized in that: The pressure angles of the continuous spiral blade and the segmented spiral blade are 15-20°.

6. The anti-tangling mixer according to claim 5, characterized in that: The spiral blade heights of the continuous spiral blade and the segmented spiral blade are 45-55 mm.

7. The anti-tangling mixer according to claim 6, characterized in that: The spiral blade shapes of the continuous spiral blade and the segmented spiral blade are trapezoidal, and the edges of the trapezoid are chamfered into an arc shape.

8. The anti-tangling mixer according to claim 1, wherein: The upper cross-section of the pushing plate is a semi-elliptical structure.

9. The anti-tangling mixer according to claim 1, characterized in that: The driving mechanism includes a motor, a driving gear connected to the motor, and a driven gear sleeved outside the mixing cylinder. The driving gear meshes with the driven gear.

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