Mixing device

Abstract

The invention discloses a mixing device, and relates to the field of agricultural waste processing. The mixing device comprises a material adding device and a mixer box body, and the material adding device is arranged above the mixer box body and used for conveying added materials into the mixer box body; an inlet and an outlet are formed in the mixer box body, a throwing shaft and a stirring shaft are arranged in the mixer box body, the throwing shaft can drive raw materials entering from the inlet to be thrown to the stirring shaft, the stirring shaft is arranged below the material adding device, and the stirring shaft can stir and mix the added materials and the raw materials thrown by the throwing shaft to obtain mixed materials; the mixed material is discharged from the outlet. The mixing device provided by the invention can improve the mixing effect of raw materials and added materials.

Description

Technical Field

[0001] The invention relates to the field of agricultural waste processing, in particular to a mixing device. Background Art

[0002] Straw is one of the agricultural wastes in my country, with a large annual output. Improper handling can easily cause environmental pollution and soil quality degradation, and even fire risks, causing huge losses to farmers. Straw off-field utilization is one of the important ways to realize straw resource utilization. In the process of off-field utilization such as feed, fuel, and fertilizer, straw needs to be mixed with other additives. Although the existing technology can mix straw and additives, there is still the problem of uneven mixing. Summary of the invention

[0003] The object of the present invention is to provide a mixing device to solve the problems existing in the above-mentioned prior art and to improve the mixing effect of raw materials and additives.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a mixing device, comprising a feeding device and a mixer box, wherein the feeding device is arranged above the mixer box and is used to transport feeding materials into the mixer box; the mixer box is provided with an inlet and an outlet, and the mixer box is provided with a spreading shaft and a stirring shaft inside, the spreading shaft can drive the raw materials entering from the inlet to be sprinkled onto the stirring shaft, the stirring shaft is arranged below the feeding device, and the stirring shaft can stir and mix the feeding materials and the raw materials sprinkled by the spreading shaft to obtain a mixed material, and the mixed material is discharged from the outlet.

[0006] In some embodiments, the mixer box is used to be placed above the conveyor belt, the raw materials are transported to the inlet by the conveyor belt and can enter the mixer box, the mixed materials leave the mixer box from the outlet and are output by the conveyor belt; the mixer box also includes a feed table, which includes a feed slope, a bearing surface and a discharge slope that are sequentially arranged and connected along the conveying direction of the conveyor belt; the bottom surface of the mixer box is provided with an opening, the bearing surface is located inside the mixer box, one end of the feed slope is used to contact with the surface of the conveyor belt, and the other end of the feed slope is used to contact with the surface of the conveyor belt. One end gradually extends upward in the conveying direction of the conveyor belt and enters into the mixer box through the opening and is connected to one end of the bearing surface, the other end of the bearing surface is connected to one end of the discharge slope, the other end of the discharge slope gradually extends downward in the conveying direction of the conveyor belt and extends out of the mixer box through the opening and contacts the surface of the conveyor belt, the opening part located above the feed slope forms the inlet, the opening part located above the discharge slope forms the outlet, and the spreading shaft can drive the raw materials on the bearing surface to be spread to the discharge slope.

[0007] In some embodiments, the axes of the spreading shaft and the stirring shaft are parallel to the plane of the conveyor belt, and the axes of the spreading shaft and the stirring shaft are arranged perpendicular to the movement direction of the conveyor belt, and the spreading shaft is closer to the inlet than the stirring shaft; the rotation directions of the spreading shaft and the stirring shaft are opposite, and the rotation direction of the spreading shaft is opposite to the rotation direction of the conveyor belt drive wheel.

[0008] In some embodiments, the throwing shaft includes a throwing blade and a throwing transmission shaft, the throwing blade is fixed on the throwing transmission shaft, the throwing blade is curved in an arc shape, and the throwing blade can bring up the raw material when the throwing transmission shaft rotates, and throw it toward the stirring shaft; and the throwing blade has a spiral blade surface, the axis of the spiral blade surface is perpendicular to the axis of the throwing transmission shaft, and the throwing blade is divided into a left-handed throwing blade and a right-handed throwing blade according to the different rotation directions of the spiral blade surface; the left-handed throwing blade and the right-handed throwing blade are alternately arranged in the axial direction of the throwing transmission shaft, and the left-handed throwing blade and the right-handed throwing blade are alternately arranged in the circumferential direction of the throwing transmission shaft; the stirring shaft includes a stirring shaft body and a protrusion fixed on the stirring shaft body, and the protrusion is evenly arranged in the axial and circumferential directions of the stirring shaft body.

[0009] In some embodiments, the feeding device includes a feeding box and a feeding box arranged inside the feeding box, the feeding box includes a box body, a top cover and a bottom cover, the box body is fixedly connected to the inner wall of the feeding box, the top of the box body has a feeding inlet, the bottom of the box body has a first feeding outlet, the top cover is connected to the top of the box body and can close and open the feeding inlet, the bottom cover is connected to the bottom of the box body and can close and open the first feeding outlet, the feeding box has a second feeding outlet, and the second feeding outlet is connected to the mixer box.

[0010] In some embodiments, the angle between the bottom cover and the first material adding outlet can be adjusted and maintained.

[0011] In some embodiments, the interior of the feeding box has a first annular material guide slope, the cross-section of the first material guide slope gradually decreases from top to bottom, the feeding box is fixed above the first material guide slope, the bottom opening of the first material guide slope forms a second material feeding outlet, and the second material feeding outlet is symmetrical about the middle section of the stirring shaft; the added material can slide along the first material guide slope into the second material feeding outlet and enter the interior of the mixer box.

[0012] In some embodiments, it also includes a material equalizing cover, which is arranged above the mixer box and below the second feeding outlet; the material equalizing cover has a second material guide slope, and the second material guide slope has a first inclined surface and a second inclined surface, the top of the first inclined surface and the top of the second inclined surface are connected to form an intersection line, and the intersection line is located below the second feeding outlet, and the bottoms of the first inclined surface and the second inclined surface are respectively in contact with two opposite side surfaces of the mixer box, the first inclined surface and the second inclined surface are symmetrical about the intersection line, and the intersection line is coplanar with the middle section of the stirring shaft; the second material guide slope is evenly provided with through holes along the axial direction of the stirring shaft, and the added material slides on the second material guide slope after falling through the second feeding outlet, and can fall into the mixer box through the through holes.

[0013] In some embodiments, the material balancing cover also includes a first connecting plate, a vertical surface, a material guiding surface and a second connecting plate. The vertical surface is vertically arranged, one end of the first connecting plate is fixedly connected to one vertical end of the vertical surface, the other vertical end of the vertical surface is fixedly connected to one end of the second material guiding slope, the other end of the second material guiding slope is fixedly connected to one end of the material guiding surface, the other end of the material guiding surface extends upward and is fixedly connected to the second connecting plate, the first connecting plate and the second connecting plate are respectively fixed to the top of the mixer box, the vertical surface, the second material guiding slope and the material guiding surface form downward grooves on the plane where the upper surfaces of the first connecting plate and the second connecting plate are located; the material guiding surface is used to transport the additive falling from the second additive outlet to the first inclined surface and the second inclined surface; the projection of the second additive outlet on the material balancing cover is located in the groove.

[0014] In some embodiments, it also includes a spreading power transmission device and a stirring power transmission device, wherein the spreading power transmission device is connected to the conveyor belt drive wheel to provide power for the spreading transmission shaft; and a stirring power transmission device, wherein the stirring power transmission device is connected to the conveyor belt drive wheel to provide power for the stirring shaft.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The mixing device provided by the present invention can make the raw materials and the additives mixed more evenly through the throwing effect of the throwing shaft on the raw materials and the stirring effect of the stirring shaft on the raw materials and the additives, thereby improving the mixing effect of the raw materials and the additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A front view of a mixing device in some embodiments of the present invention;

[0019] Figure 2 for Figure 1 A side view of the mixing device;

[0020] Figure 3 for Figure 2 DD cross-sectional view of the mixing device;

[0021] Figure 4 A front view of a throwing shaft in some embodiments of the present invention;

[0022] Figure 5 for Figure 4 AA section view of the middle throwing axis;

[0023] Figure 6 Schematic diagram of a left-handed throwing blade and a right-handed throwing blade in some embodiments of the present invention;

[0024] Figure 7 A front view of a stirring shaft in some embodiments of the present invention;

[0025] Figure 8 A top view of a material feeding box in some embodiments of the present invention;

[0026] Fig. 9 for Figure 8 BB section view of the middle feeding box;

[0027] Fig.10 A top view of a material distribution cover in some embodiments of the present invention;

[0028] Fig.11 for Fig.10 CC section view of the medium-sized material cover.

[0029] In the figure: 1-feeding box; 11-feeding box; 12-first feeding outlet; 13-second feeding outlet; 14-first material guiding slope; 15-material equalizing cover; 151-first connecting plate; 152-second connecting plate; 153-material guiding surface; 154-vertical surface; 155-second material guiding slope; 1551-first inclined surface; 1552-second inclined surface; 1553-intersection line; 156-through hole; 16-angle adjustment device; 2-mixer box; 21-opening; 3-sprinkling shaft; 31-left-handed throwing blade; 32-right-handed throwing blade; 33-sprinkling transmission shaft; 4-stirring shaft; 5-feeding platform; 51-feeding inclined surface; 52-bearing surface; 53-discharging inclined surface; 6-mixer box fixing part; 7-feeding box fixing part. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The object of the present invention is to provide a mixing device to solve the problems existing in the above-mentioned prior art and to improve the mixing effect of raw materials and additives.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following is a brief description of the present invention in conjunction with the attached drawings. Figures 1 to 11 The present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

[0033] The present invention provides a mixing device, comprising a material adding device and a mixer box 2.

[0034] refer to Figures 1-2 As shown, the feeding device is arranged above the mixer housing 2, and is used to convey the feeding material into the mixer housing 2. The mixer housing 2 is provided with an inlet and an outlet, and a scattering shaft 3 and a stirring shaft 4 are arranged inside the mixer housing 2. The scattering shaft 3 can drive the raw materials entering from the inlet to be scattered toward the stirring shaft 4, and the stirring shaft 4 is arranged below the feeding device. The stirring shaft 4 can stir and mix the feeding material and the raw materials scattered by the scattering shaft 3 to obtain a mixed material, and the mixed material is discharged from the outlet. The mixing device provided by the present invention can make the raw materials and the feeding material mixed more evenly through the scattering effect of the scattering shaft 3 on the raw materials and the stirring effect of the stirring shaft 4 on the raw materials and the feeding material, and can improve the mixing effect of the raw materials and the feeding material.

[0035] In some embodiments provided by the present invention, reference Figure 3As shown, the mixer box 2 is used to be placed above the conveyor belt, the raw materials are transported to the inlet by the conveyor belt and can enter the mixer box 2, the mixed materials leave the mixer box 2 from the outlet and are output by the conveyor belt; the mixer box 2 also includes a feed table 5, the feed table 5 includes a feed slope 51, a bearing surface 52 and a discharge slope 53 which are sequentially arranged and connected along the conveying direction of the conveyor belt; the bottom surface of the mixer box 2 is provided with an opening 21, the bearing surface 52 is located inside the mixer box 2, one end of the feed slope 51 is used to contact with the surface of the conveyor belt, and the other end of the feed slope 51 is in contact with the surface of the conveyor belt. The conveying direction of the conveyor belt gradually extends upward and enters the mixer box 2 through the opening 21 and is connected to one end of the bearing surface 52. The other end of the bearing surface 52 is connected to one end of the discharge slope 53. The other end of the discharge slope 53 gradually extends downward in the conveying direction of the conveyor belt and extends out of the mixer box 2 through the opening 21 to contact the surface of the conveyor belt. The opening 21 part located above the feed slope 51 forms an inlet, and the opening 21 part located above the discharge slope 53 forms an outlet. The throwing shaft 3 can drive the raw materials on the bearing surface 52 to be thrown to the discharge slope 53 through the outlet. The raw materials enter the mixer box 2 through the feed slope 51, accumulate on the bearing surface 52, and are thrown and stirred by the throwing shaft 3 and the stirring shaft 4. It can avoid the throwing shaft directly throwing the raw materials on the conveyor belt, and some raw materials are not thrown and directly transported by the conveyor belt, resulting in uneven mixing of the raw materials and the added materials. The distance between the throwing shaft 3 and the carrying surface 52 is set so that the throwing shaft 3 can throw up most of the raw materials on the carrying surface 52 for mixing without affecting the operation of the throwing shaft 3. The distance between the throwing shaft 3 and the carrying surface 52 can be adaptively adjusted according to the size of the raw materials and the rotation speed of the throwing shaft 3. The mixed material stirred by the stirring shaft 4 falls on the discharge slope 53, then slides onto the conveyor belt, and is conveyed to the next process by the conveyor belt. In some other embodiments, the projection of the opening 21 on the bottom surface of the mixer box 2 on the conveyor belt can cover the projections of the bearing surface 52 and the discharge slope 53 on the conveyor belt, and the spreading shaft 3 drives the raw materials on the bearing surface 52 to be spread toward the stirring shaft 4. Part of the mixed material falls on the discharge slope 53 and slides onto the conveyor belt, and the other part falls directly onto the conveyor belt as the stirring shaft 4 continues to rotate for more than half a circle. The conveyor belt drives the mixed material to leave from the outlet, and the smaller raw materials fall directly on the discharge slope 53 after being stirred, and then slide onto the conveyor belt. The larger raw materials are stirred and sprinkled for the second time under the drive of the stirring shaft 4, and fall directly onto the conveyor belt as the stirring shaft 4 continues to rotate for more than half a circle, so that the larger raw materials can also be distributed more evenly.

[0036] In some embodiments provided by the present invention, reference Figures 1 to 3As shown, the axes of the spreading shaft 3 and the stirring shaft 4 are parallel to the plane of the conveyor belt, and the axes of the spreading shaft 3 and the stirring shaft 4 are set perpendicular to the moving direction of the conveyor belt, and the spreading shaft 3 is closer to the entrance than the stirring shaft 4; the rotation directions of the spreading shaft 3 and the stirring shaft 4 are opposite, and the rotation direction of the spreading shaft 3 is opposite to the rotation direction of the conveyor belt drive wheel, and the rotation direction of the stirring shaft 4 is consistent with the rotation direction of the conveyor belt drive wheel. The rotation directions of the spreading shaft 3 and the stirring shaft 4 are opposite, refer to Figure 3 , the spreading shaft 3 rotates counterclockwise and the stirring shaft 4 rotates clockwise, which can ensure that the raw materials and the added materials move in the center of the mixer box 2, so that the stirring shaft 4 plays a stirring role. If the spreading shaft 3 and the stirring shaft 4 rotate in the same direction, the stirring shaft 4 cannot play a stirring role.

[0037] In some embodiments provided by the present invention, reference Figures 4 to 7 As shown, the spreading shaft 3 includes a spreading blade and a spreading transmission shaft 33, the spreading blade is fixed on the spreading transmission shaft 33, the spreading blade is curved in an arc shape, and the spreading blade can bring up the raw material when the spreading transmission shaft 33 rotates, and spread it toward the stirring shaft 4; and the spreading blade has a spiral blade surface, the axis of the spiral blade surface is perpendicular to the axis of the spreading transmission shaft 33, and the spreading blade is divided into a left-handed spreading blade 31 and a right-handed spreading blade 32 according to the different rotation directions of the spiral blade surface; the left-handed spreading blade 31 and the right-handed spreading blade 32 are alternately arranged in the axial direction of the spreading transmission shaft 33, and the left-handed spreading blade 31 and the right-handed spreading blade 32 are alternately arranged in the circumferential direction of the spreading transmission shaft 33; the stirring shaft 4 includes a stirring shaft body and a protrusion fixed on the stirring shaft body, and the protrusion is evenly arranged in the axial and circumferential directions of the stirring shaft body. The throwing blades are arranged as a left-handed throwing blade 31 and a right-handed throwing blade 32, and the left-handed throwing blade 31 and the right-handed throwing blade 32 are arranged alternately in the axial direction and the circumferential direction. When the throwing shaft 3 is working, the left-handed throwing blade 31 and the right-handed throwing blade 32 are arranged alternately in the axial direction and the circumferential direction, so that the raw material repeatedly moves on the adjacent left-handed throwing blade 31 and the right-handed throwing blade 32, so that the raw material and the added material can be mixed more evenly. In some other embodiments, in order to reduce weight, grooves can be provided on the sides of the left-handed throwing blade 31 and the right-handed throwing blade 32 to achieve the purpose of lightweight. In addition, the stirring shaft body is evenly fixed with protrusions in the axial and circumferential directions. After stirring, the smaller raw materials slide on the throwing blades, fall on the discharge slope 53, and then slide onto the conveyor belt. After stirring, the larger raw materials are driven by the protrusions and are thrown for the second time. As the stirring shaft 4 continues to rotate for more than half a circle, it directly falls on the conveyor belt, which can also avoid the uneven distribution of larger raw materials. In some other embodiments, the helix angles of the left-handed throwing blade 31 and the right-handed throwing blade 32 may be consistent.

[0038] In some embodiments provided by the present invention, reference Figures 8-9As shown, the feeding device includes a feeding box 1 and a feeding box 11 arranged inside the feeding box 1. The feeding box 11 includes a box body, a top cover and a bottom cover. The box body is fixedly connected to the inner wall of the feeding box 1. The top of the box body has a feeding inlet, and the bottom of the box body has a first feeding outlet 12. The top cover is connected to the top of the box body and can close and open the feeding inlet. The bottom cover is connected to the bottom of the box body and can close and open the first feeding outlet 12. The feeding box 1 has a second feeding outlet 13, and the second feeding outlet 13 is connected to the mixer box 2. Multiple feeding boxes 11 can be provided to facilitate the addition of multiple feeding materials. When the feeding materials are insufficient, the top cover can be opened for addition. The feeding materials can enter the feeding box 1 through the first feeding outlet 12, and then enter the mixer box 2 through the second feeding outlet 13 for stirring. Different feeding materials can be concentrated and added to the mixer box 2 to avoid uneven distribution of different feeding materials in the axial direction of the stirring shaft 4.

[0039] In some embodiments provided by the present invention, reference Figures 1 to 3 As shown, the angle between the bottom cover and the first feed outlet 12 can be adjusted and maintained to control the speed of adding the feed. The mixing device provided by the present invention can coordinate the discharge speed of the feed with the raw material conveying speed by adjusting the feeding speed to ensure that the feed ratio of the mixed material is within the control range. The angle between the bottom cover and the first feed outlet 12 can be adjusted by setting the connection mode between the bottom cover and the first feed outlet 12 to be, but not limited to, a hinged connection or other matching mode, or by setting an angle adjustment device 16 hingedly connected to the bottom cover and the edge of the first feed outlet 12. The angle adjuster device 16 can be a structure such as an electric, hydraulic or pneumatic telescopic rod, which is a prior art.

[0040] In some embodiments provided by the present invention, reference Figures 8-9 As shown, the inside of the feeding box 1 has a first material guide slope 14 in the shape of an annular material. The cross section of the first material guide slope 14 gradually decreases from the top to the bottom. The feeding box 11 is fixed above the first material guide slope 14. The bottom opening of the first material guide slope 14 forms a second material feeding outlet 13. The second material feeding outlet 13 is symmetrical about the middle section of the stirring shaft 4. The middle section of the stirring shaft 4 is a surface passing through the center of the stirring shaft 4 and perpendicular to the axis of the stirring shaft 4. The material can slide along the first material guide slope 14 into the second material feeding outlet 13 and enter the inside of the mixer box 2. The mixing device provided by the present invention is provided with the first material guide slope 14, which can make the material falling process smoother, and will not be congested near the second material feeding outlet 13 to affect the falling of the material. Moreover, under the action of the first material guide slope 14, the material can fall at a more uniform speed. The second feed outlet 13 can also collect feeds in different feed boxes 11 together and then drop them into the mixer housing 2 , thereby avoiding uneven distribution of different feeds in the axial direction of the stirring shaft 4 .

[0041] In some embodiments provided by the present invention, reference Figures 10-11 As shown, the mixing device provided by the present invention further includes a material distribution cover 15, which is arranged above the mixer housing 2 and below the second material adding outlet 13; the material distribution cover 15 has a second material guiding slope 155, and the second material guiding slope 155 has a first inclined surface 1551 and a second inclined surface 1552, the top of the first inclined surface 1551 and the top of the second inclined surface 1552 are connected to form an intersection line 1553, and the intersection line 1553 is located below the second material adding outlet 13, and the first inclined surface 1551 and the second inclined surface 1552 are connected to form an intersection line 1553. The first inclined surface 1551 and the bottom of the second inclined surface 1552 are in contact with two opposite side surfaces of the mixer housing 2 respectively, and the first inclined surface 1551 and the second inclined surface 1552 are symmetrical about the intersection line 1553, and the intersection line 1553 is coplanar with the middle section of the stirring shaft 4; the second material guiding slope 155 is evenly provided with through holes 156 along the axial direction of the stirring shaft 4, and the added material slides on the second material guiding slope 155 after falling through the second material adding outlet 13, and can fall into the mixer housing 2 through the through holes 156. By making the added material slide on the second material guiding slope 155 and enter the mixer housing 2 through the through holes 156, the accumulation of the added material at the second material adding outlet 13 is avoided, and the added material can fall at any position in the axial direction of the stirring shaft 4, which can make the material discharge more uniform, and through the stirring action of the stirring shaft 4, the raw materials and the added material are mixed more uniformly.

[0042] In some embodiments provided by the present invention, the material distribution cover 15 further includes a first connecting plate 151, a vertical surface 154, a material guide surface 153 and a second connecting plate 152. The vertical surface 154 is vertically arranged, one end of the first connecting plate 151 is fixedly connected to one end of the vertical surface 154 in a vertical direction, the other end of the vertical surface 154 is fixedly connected to one end of the second material guide slope 155, the other end of the second material guide slope 155 is fixedly connected to one end of the material guide surface 153, and the other end of the material guide surface 153 extends upward to the second material guide slope 155. The connecting plate 152 is fixedly connected, the first connecting plate 151 and the second connecting plate 152 are respectively fixed on the top of the mixer box 2, and the vertical surface 154, the second material guiding slope 155 and the material guiding surface 153 form a downward groove on the plane where the upper surfaces of the first connecting plate 151 and the second connecting plate 152 are located; the material guiding surface 153 is used to transport the added material falling from the second adding outlet 13 to the first inclined surface 1551 and the second inclined surface 1552; the projection of the second adding outlet 13 on the material equalizing cover 15 is located in the groove. The material distribution cover 15 is fixed to the top of the mixer housing 2 by the first connecting plate 151 and the second connecting plate 152, which is more firmly fixed and not easy to move during operation; through the action of the material guiding surface 153, the raw materials falling from the second feeding outlet 13 can be transported to the first inclined surface 1551 and the second inclined surface 1552, and enter the mixer housing 2 through the through hole 156, so as to prevent the added materials from accumulating at the edge and being unable to fall. The material guiding surface 153 can be an arc surface, or a sloped surface that allows the added materials to slide smoothly; and the projection of the second feeding outlet 13 on the material distribution cover 15 is located in the groove, so that all the added materials falling from the second feeding outlet 13 can fall completely onto the first inclined surface 1551 and the second inclined surface 1552, and then fall into the mixer housing 2 through the through hole 156.

[0043] In some embodiments provided by the present invention, the mixing device provided by the present invention further includes a spreading power transmission device and a stirring power transmission device. The spreading power transmission device is connected to the conveyor belt transmission wheel for providing power for the spreading transmission shaft 33; the stirring power transmission device is connected to the conveyor belt transmission wheel for providing power for the stirring shaft 4. The power source of the spreading transmission shaft 33 and the stirring shaft 4 is the conveyor belt transmission wheel. By connecting the spreading power transmission device and the stirring power transmission device to the conveyor belt transmission wheel, the conveyor belt transmission wheel is used to drive the spreading transmission shaft 33 and the stirring shaft 4 to rotate in opposite directions, and there is no need to add an additional power assembly, which saves energy and further reduces the manufacturing cost of the entire mixing device. The transmission device can be a gear meshing mechanism, a belt transmission mechanism, or a mechanical transmission structure combining the two. Other forms of transmission structures can also be set according to actual conditions.

[0044] In some embodiments provided by the present invention, the mixing device provided by the present invention further includes a mixer box fixing member 6 and a feed box fixing member 7. The mixer box fixing member 6 is used to fix the mixer box 2 above the conveyor belt; the feed box fixing member 7 is used to fix the feed box 1 above the mixer box 2. The mixer box fixing member 6 fixes the conveyor belt stand at one end and the mixer box 2 at the other end. The feed box fixing member 7 fixes the mixer box 2 at one end and the feed box 1 at the other end. The fixing structure is simple and convenient for disassembly and assembly. The mixer box 2 and the feed box 1 can also be replaced on different conveyor belts for use according to the needs of the production line.

[0045] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A mixing device, characterized in that: include: A material adding device is arranged above the mixer box and is used to convey the material to the inside of the mixer box; as well as A mixer box, wherein the mixer box is provided with an inlet and an outlet, and a spreading shaft and a stirring shaft are provided inside the mixer box. The spreading shaft can drive the raw materials entering from the inlet to be sprinkled onto the stirring shaft, and the stirring shaft is arranged below the feeding device. The stirring shaft can stir and mix the added material and the raw materials sprinkled from the spreading shaft to obtain a mixed material, and the mixed material is discharged from the outlet.

2. The mixing device according to claim 1, characterized in that: The mixer box is used to be placed above the conveyor belt, the raw materials are conveyed to the inlet by the conveyor belt and can enter the mixer box, and the mixed materials leave the mixer box from the outlet and are output by the conveyor belt; The mixer box also includes a feed table, which includes a feed slope, a bearing surface and a discharge slope that are sequentially arranged and connected along the conveying direction of the conveyor belt; The bottom surface of the mixer box is provided with an opening, the bearing surface is located inside the mixer box, one end of the feed slope is used to contact the surface of the conveyor belt, the other end of the feed slope gradually extends upward in the conveying direction of the conveyor belt and enters into the mixer box through the opening and is connected to one end of the bearing surface, the other end of the bearing surface is connected to one end of the discharge slope, the other end of the discharge slope gradually extends downward in the conveying direction of the conveyor belt and extends out of the mixer box through the opening and contacts the surface of the conveyor belt, the opening part above the feed slope forms the inlet, and the opening part above the discharge slope forms the outlet, and the spreading shaft can drive the raw materials on the bearing surface to be spread to the discharge slope.

3. The mixing device according to claim 2, characterized in that: The axes of the throwing shaft and the stirring shaft are parallel to the plane of the conveyor belt, and the axes of the throwing shaft and the stirring shaft are arranged perpendicular to the moving direction of the conveyor belt, and the throwing shaft is closer to the inlet than the stirring shaft; The rotation directions of the spreading shaft and the stirring shaft are opposite, and the rotation direction of the spreading shaft is opposite to the rotation direction of the conveyor belt driving wheel.

4. The mixing device according to claim 3, characterized in that: The throwing shaft comprises a throwing blade and a throwing transmission shaft, the throwing blade is fixed on the throwing transmission shaft, the throwing blade is curved in an arc shape, and the throwing blade can bring up the raw material when the throwing transmission shaft rotates and throw it toward the stirring shaft; The throwing blade has a spiral blade surface, the axis of the spiral blade surface is perpendicular to the axis of the throwing transmission shaft, and the throwing blade is divided into a left-handed throwing blade and a right-handed throwing blade according to the different rotation directions of the spiral blade surface; The left-handed throwing blade and the right-handed throwing blade are alternately arranged in the axial direction of the throwing transmission shaft, and the left-handed throwing blade and the right-handed throwing blade are alternately arranged in the circumferential direction of the throwing transmission shaft; The stirring shaft comprises a stirring shaft body and protrusions fixed on the stirring shaft body, and the protrusions are evenly arranged in the axial direction and the circumferential direction of the stirring shaft body.

5. The mixing device according to claim 1, characterized in that: The feeding device includes a feeding box and a feeding box arranged inside the feeding box, the feeding box includes a box body, a top cover and a bottom cover, the box body is fixedly connected to the inner wall of the feeding box, the top of the box body has a feeding inlet, the bottom of the box body has a first feeding outlet, the top cover is connected to the top of the box body and can close and open the feeding inlet, the bottom cover is connected to the bottom of the box body and can close and open the first feeding outlet, the feeding box has a second feeding outlet, and the second feeding outlet is connected to the mixer box.

6. The mixing device according to claim 5, characterized in that: The angle between the bottom cover and the first material adding outlet can be adjusted and maintained.

7. The mixing device according to claim 5, characterized in that: The inside of the material adding box body is provided with a first material guiding slope in an annular shape, the cross section of the first material guiding slope gradually decreases from the top to the bottom, the material adding box is fixed above the first material guiding slope, the bottom opening of the first material guiding slope forms a second material adding outlet, and the second material adding outlet is symmetrical with respect to the middle section of the stirring shaft; The added material can slide down the first material guiding slope into the second added material outlet and enter the interior of the mixer housing.

8. The mixing device according to claim 7, characterized in that: It also includes a material distribution cover, which is arranged above the mixer box and below the second material addition outlet; The material distribution cover has a second material guide slope, the second material guide slope has a first slope and a second slope, the top of the first slope and the top of the second slope are connected to form an intersection line, the intersection line is located below the second material addition outlet, the bottoms of the first slope and the second slope are respectively in contact with two opposite side surfaces of the mixer housing, the first slope and the second slope are symmetrical about the intersection line, and the intersection line is coplanar with the middle section of the stirring shaft; The second material guiding slope is evenly provided with through holes along the axial direction of the stirring shaft. After the added material falls through the second material adding outlet, it slides on the second material guiding slope and can fall into the mixer box through the through holes.

9. The mixing device according to claim 8, characterized in that: The material distribution cover also includes a first connecting plate, a vertical surface, a material guide surface, and a second connecting plate, wherein the vertical surface is vertically arranged, one end of the first connecting plate is fixedly connected to one end of the vertical surface, the other end of the vertical surface is fixedly connected to one end of the second material guide slope, the other end of the second material guide slope is fixedly connected to one end of the material guide surface, the other end of the material guide surface extends upward and is fixedly connected to the second connecting plate, the first connecting plate and the second connecting plate are respectively fixed to the top of the mixer box, and the vertical surface, the second material guide slope and the material guide surface form downward grooves on the plane where the upper surfaces of the first connecting plate and the second connecting plate are located; The material guiding surface is used to convey the added material falling from the second added material outlet to the first inclined surface and the second inclined surface; The projection of the second material adding outlet on the material balancing cover is located in the groove.

10. The mixing device according to claim 3, characterized in that: Also includes: A throwing power transmission device, which is used to be connected to the conveyor belt drive wheel to provide power for the throwing drive shaft; A stirring power transmission device is used to be connected to the conveyor belt drive wheel to provide power for the stirring shaft.

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