Material mixing device

Abstract

The application discloses a material mixing device. The material mixing device comprises a barrel, a feeding device, a scraping device, a spraying device and a stirring device. A mixing cavity is formed in the barrel. The mixing cavity is provided with a mixing area and a stirring area which are communicated with each other. The feeding device is communicated with the mixing area and is suitable for feeding solid material into the mixing area. The scraping device is rotatably arranged in the mixing area. At least part of the scraping device is attached to the inner wall of the mixing area. At least part of the spraying device extends into the mixing area and is suitable for feeding liquid material into the mixing area. The spraying device is arranged on both sides of the scraping device. At least one spraying outlet is arranged on each spraying device. The spraying outlet is inclined towards the bottom of the mixing area. The stirring device is rotatably arranged in the stirring area to stir the mixture in the stirring area. The material mixing device improves the material mixing effect by reasonably arranging the scraping device, the stirring device and the spraying device.

Description

Technical Field

[0001] The present invention relates to the technical field of material mixing, in particular to a material mixing device. Background Art

[0002] Battery powder mixed acid technology involves a pretreatment process that converts precious metals in the battery powder into corresponding salts through a mixing reaction between battery powder and acid, preparing for further precious metal recovery in subsequent stages. In related technologies, material mixing equipment has inherent limitations and does not achieve ideal material mixing results. To ensure efficient mixing of battery powder and acid solution, the structure of the equipment needs to be optimized to ensure normal feeding while avoiding problems such as material sticking to the wall and insufficient mixing during the mixing process of solid materials (i.e., battery powder) and liquid materials (i.e., acid solution). Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a material mixing device. The material mixing device according to the present invention defines a mixing zone and a stirring zone within a cylinder. The mixing zone is provided with a scraping device for scraping off adhered material from the inner wall of the mixing zone. A spray outlet is also provided, inclined toward the bottom of the mixing zone, for spraying liquid material to ensure that the liquid material is fully mixed with the solid material. The stirring zone is provided with a stirring device for stirring the mixed material, thereby improving the material mixing effect.

[0004] According to the present invention, the material mixing equipment includes a cylinder, a feeding device, a scraping device, a spraying device and a stirring device, a mixing chamber is formed in the cylinder, and a mixing area and a stirring area connected to each other are provided in the mixing chamber; the feeding device is connected to the mixing area and is suitable for feeding solid material into the mixing area; the scraping device is rotatably arranged in the mixing area, and at least part of the scraping device is in contact with the inner wall of the mixing area; at least part of the spraying device extends to the mixing area and is suitable for feeding liquid material into the mixing area, and the spraying device is constructed as a plurality of devices arranged on both sides of the scraping device, each of the spraying devices is provided with at least one spraying outlet, and the spraying outlet is inclined toward the bottom of the mixing area; the stirring device is rotatably arranged in the stirring area to stir the mixture in the stirring area.

[0005] According to the present invention, the material mixing equipment is provided with a cylinder, in which a mixing zone and a stirring zone are formed. The mixing zone can provide space for mixing solid materials (battery powder) and liquid materials (acidic solution); the stirring zone can process the mixed mixture to improve the mixing effect of the materials, thereby optimizing the material mixing process. The scraper device is rotatably provided in the mixing zone, and at least a portion of the scraper device is aligned with the inner wall of the mixing zone. During the rotation of the cylinder to achieve mixing of solid materials and liquid materials, the scraper device rotates and can scrape off the material mixture adhering to the inner wall of the mixing zone, thereby reducing material residue and waste. At the same time, the solid materials can be turned over to avoid accumulation of materials at the bottom, thereby ensuring uniform distribution of the solid materials in the mixing zone and improving the mixing efficiency of the material mixing equipment. The spraying device can be set in multiple numbers and located on both sides of the scraping device respectively. The spraying outlet on each spraying device is inclined toward the bottom of the mixing area, so that the liquid material can be sprayed directly to the bottom of the mixing area. Since the cylinder is rotating, the solid material will accumulate at the bottom of the mixing area. At this time, the liquid material can be evenly sprayed to the accumulation position of the solid material through the inclined design of the spray outlet, which is convenient for mixing the solid material and the liquid material, and further improves the mixing efficiency of the material mixing equipment.

[0006] According to one embodiment of the present invention, the scraping device includes: a scraping spindle and a scraping member, the scraping spindle is rotatably arranged in the mixing zone and is parallel to the axis of the cylinder; the scraping member is connected to the scraping spindle and rotates with the scraping spindle, at least a portion of the scraping member contacts the inner wall of the mixing zone to scrape off the material adhered to the inner wall of the mixing zone; wherein the rotation direction of the scraping spindle is the same as the rotation direction of the cylinder and has a speed difference.

[0007] According to one embodiment of the present invention, the scraper member spirally surrounds at least a portion of the outer circumference of the scraper shaft.

[0008] According to one embodiment of the present invention, the scraping device includes: a stopper, which is arranged between the mixing zone and the stirring zone and forms a material channel with the inner wall of the mixing chamber, and a through hole is provided on the stopper, and the scraping main shaft is rotatably arranged in the through hole toward one end of the stirring zone.

[0009] According to one embodiment of the present invention, a flaring section with gradually increasing diameter is formed on the side of the through hole away from the mixing zone, and a reducing section with gradually increasing diameter is formed on the end of the scraping shaft toward the stirring zone, and the reducing section is accommodated in the flaring section.

[0010] According to one embodiment of the present invention, the spraying device includes: an acid inlet pipe and a nozzle, the acid inlet pipe is constructed to be symmetrically arranged on both sides of the scraping device, and the extension direction of the multiple acid inlet pipes is parallel to the axis of the cylinder; the nozzle is arranged on the acid inlet pipe and is constructed to be spaced apart in the extension direction of the acid inlet pipe, and the multiple nozzles are respectively arranged obliquely toward the bottom of the mixing area, and the spray outlet is formed on each nozzle.

[0011] According to one embodiment of the present invention, three nozzles are spaced apart on each of the acid inlet pipes, and the opening cross-sectional areas of the spray outlets corresponding to the three nozzles decrease sequentially in the direction from the mixing zone toward the stirring zone.

[0012] According to one embodiment of the present invention, the stirring device includes: a stirring shaft and a plow assembly, the stirring shaft is rotatably arranged in the stirring zone and extends on the axis of the cylinder, and the rotation direction of the stirring shaft is opposite to the rotation direction of the cylinder; the plow assembly is constructed to be sleeved on the stirring shaft and rotate with the stirring shaft and arranged at intervals in the extension direction of the stirring shaft, and each of the plow assemblies is formed with at least one blade.

[0013] According to one embodiment of the present invention, the plow assembly includes: a connecting portion and a plow body, the connecting portion is sleeved on the stirring shaft, and a connecting shaft extending in the radial direction is formed on the connecting portion; the plow body is connected to the connecting shaft, and the blade is formed on the side of the plow body facing the rotation direction of the stirring shaft, and the side of the plow body away from the rotation direction of the stirring shaft is provided with a first blade and a second blade spaced apart from each other, the angle between the first blade and the extension direction of the connecting shaft is β1, the angle between the second blade and the extension direction of the connecting shaft is β2, and it satisfies that 2°≤β2-β1≤5°.

[0014] According to one embodiment of the present invention, the material mixing equipment further includes: a supporting platform, a first bracket and a second bracket, wherein the supporting platform is arranged below the cylinder and is suitable for supporting the cylinder; the first bracket is supported on one end of the supporting platform; the second bracket is supported on the other end of the supporting platform; wherein the height of at least one of the first bracket and the second bracket is adjustable.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of a material mixing device according to one embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of different devices within a barrel according to one embodiment of the present invention;

[0019] Figure 3 yes Figure 2 A top view of

[0020] Figure 4 is a schematic diagram of a mixing zone according to one embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of a coulter according to one embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the cooperation between the scraper spindle and the stopper according to one embodiment of the present invention.

[0023] Reference numerals:

[0024] Material mixing equipment 1;

[0025] Cylinder 11, mixing zone 111, stirring zone 112, material channel 113;

[0026] a delivery device 12;

[0027] Scraping device 13, scraping spindle 131, diameter reducing section 1311, scraping member 132, stopper 133, flaring section 1331, connecting plate 1332, through hole 1333;

[0028] Spraying device 14, acid inlet pipe 141, nozzle 142;

[0029] Stirring device 15, stirring shaft 151, coulter assembly 152, connecting portion 1521, connecting shaft 1522, coulter body 1523, first blade 1524, second blade 1525, blade 1526;

[0030] Support platform 161, first bracket 162, second bracket 163; DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] Battery powder mixed acid technology involves a pretreatment process that converts precious metals in the battery powder into corresponding salts through a mixing reaction between battery powder and acid, preparing for further precious metal recovery in subsequent stages. In related technologies, material mixing equipment has inherent limitations and does not achieve ideal material mixing results. To ensure efficient mixing of battery powder and acid solution, the structure of the equipment needs to be optimized to ensure normal feeding while avoiding problems such as material sticking to the wall and insufficient mixing during the mixing process of solid materials (i.e., battery powder) and liquid materials (i.e., acid solution).

[0033] Reference below Figures 1-6 A material mixing device according to an embodiment of the present invention is described.

[0034] The material mixing equipment 1 of the present invention includes a cylinder 11, a feeding device 12, a scraping device 13, a spraying device 14 and a stirring device 15. A mixing chamber is formed in the cylinder 11, and a mixing zone 111 and a stirring zone 112 that are connected to each other are provided in the mixing chamber; the feeding device 12 is connected to the mixing zone 111 and is suitable for feeding solid material into the mixing zone 111; the scraping device 13 is rotatably arranged in the mixing zone 111, and at least part of the scraping device 13 is in contact with the inner wall of the mixing zone 111; at least part of the spraying device 14 extends to the mixing zone 111 and is suitable for feeding liquid material into the mixing zone 111, and the spraying device 14 is constructed as a plurality of spraying devices 14 arranged on both sides of the scraping device 13, and each spraying device 14 is provided with at least one spraying outlet, which is inclined toward the bottom of the mixing zone 111; the stirring device 15 is rotatably arranged in the stirring zone 112 to stir the mixture in the stirring zone 112.

[0035] According to the material mixing device 1 of the present invention, a barrel 11 is provided, and a mixing zone 111 and a stirring zone 112 are formed in the barrel 11. The mixing zone 111 can provide space for mixing solid materials (battery powder) and liquid materials (acidic solution); the stirring zone 112 can process the mixed mixture to improve the mixing effect of the materials, thereby optimizing the material mixing process. Specifically, in the mixing zone 111, solid materials can be added through a feeding device 12. A hopper structure can be provided on the feeding device 12, and the hopper structure is connected to the mixing zone 111. The feeding device 12 can realize rapid feeding of solid materials; liquid materials can be added through a spraying device 14. At least part of the spraying device 14 extends into the mixing zone 111. A spraying outlet is provided on the spraying device 14. After the solid materials are added (or a certain amount is added), the liquid materials can enter the mixing zone 111 through the spraying outlet, ensuring that the liquid materials can directly contact and mix with the solid materials, thereby improving the mixing efficiency.

[0036] The scraping device 13 is rotatably arranged in the mixing zone 111, and at least a part of the scraping device 13 is in contact with the inner wall of the mixing zone 111. When the cylinder 11 rotates to mix the solid material and the liquid material, the scraping device 13 rotates and can scrape off the material mixture adhering to the inner wall of the mixing zone 111, thereby reducing the residual and waste of the material. At the same time, it can also turn over the solid material to avoid the accumulation of the material at the bottom, thereby ensuring the uniform distribution of the solid material in the mixing zone 111 and improving the mixing efficiency of the material mixing equipment 1.

[0037] When the material mixing equipment 1 is assembled, a plurality of spray devices 14 can be provided and respectively located on both sides of the scraping device 13. The spray outlet on each spray device 14 is inclined toward the bottom of the mixing area 111, so that the liquid material can be directly sprayed to the bottom of the mixing area 111. Since the cylinder 11 is rotating, the solid material will accumulate at the bottom of the mixing area 111. At this time, the liquid material can be evenly sprayed to the accumulation position of the solid material through the inclined design of the spray outlet, which facilitates the mixing of the solid material and the liquid material, and further improves the mixing efficiency of the material mixing equipment 1.

[0038] The stirring device 15 is rotatably disposed in the stirring zone 112 and can further stir the mixture entering the stirring zone 112 from the mixing zone 111, thereby ensuring sufficient mixing and uniformity of the mixture in the stirring zone 112, thereby improving mixing efficiency and ensuring mixing quality.

[0039] In some embodiments, the scraping device 13 can be located at the bottom of the mixing zone 111. Since the solid material will be affected by the rotation of the cylinder 11 after entering the mixing zone 111 and will accumulate at the bottom of the mixing zone 111, the scraping device 13 is set at the bottom of the mixing zone 111, and at least partially contacts the bottom wall of the mixing zone 111. This can enhance the turning effect of the scraping device 13 on the material, so that the solid material and the liquid material can be fully mixed.

[0040] According to one embodiment of the present invention, the scraping device 13 includes: a scraping spindle 131 and a scraping member 132, the scraping spindle 131 is rotatably arranged in the mixing zone 111 and is parallel to the axis of the cylinder 11; the scraping member 132 is connected to the scraping spindle 131 and rotates with the scraping spindle 131, at least a portion of the scraping member 132 contacts the inner wall of the mixing zone 111 to scrape off the material adhered to the inner wall of the mixing zone 111; wherein the rotation direction of the scraping spindle 131 is the same as the rotation direction of the cylinder 11 and has a speed difference.

[0041] A scraper spindle 131 is rotatably disposed within the mixing zone 111, and a scraper element 132 is connected to the scraper spindle 131. During operation, the scraper element 132 can effectively scrape away material adhering to the inner wall of the mixing zone 111 as the scraper spindle 131 rotates, effectively preventing material from adhering to and accumulating on the inner wall of the mixing zone 111. During assembly, the scraper spindle 131 is parallel to the axis of the barrel 11, ensuring the stability of the scraper device 13 during operation and reducing interference between the scraper device 13 and the barrel 11. The scraper spindle 131 and the barrel 11 rotate in the same direction but with a speed difference. This same rotation direction reduces obstruction to the flow of material by the scraper device 13, and the speed difference prevents the scraper device 13 from rotating synchronously with the barrel 11 and losing its scraping function, ensuring that the scraper device 13 can effectively remove material adhering to the inner wall of the mixing zone 111.

[0042] During the rotation of the cylinder 11, the scraper device 13 helps to promote the mixing of solid materials and liquid materials. For example, on the one hand, the rotation of the scraper main shaft 131 can drive the scraper 132 to stir the materials, increase the interaction between the materials, and thus improve the mixing uniformity; on the other hand, the existence of the speed difference enables the scraper 132 to scrape off the adhered materials while generating additional shear force and convection motion in the mixing area 111, further enhancing the mixing effect.

[0043] According to one embodiment of the present invention, the scraper 132 spirally surrounds at least a portion of the outer circumference of the scraper shaft 131. The spirally designed scraper 132 can generate a driving force on the material when rotating in the same direction as the barrel 11 along with the scraper shaft 131, ensuring that the mixed material can smoothly enter the mixing zone 112. At the same time, the spiral motion promotes the circulation and tumbling of the material within the mixing container, thereby improving the uniformity and efficiency of mixing.

[0044] In addition, the spiral design can reduce the damage caused by the scraper 132 to the cylinder 11. For example, the scraper main shaft 131 extends in the axial direction of the cylinder 11. At this time, under the premise of ensuring that the area of ​​the inner wall of the mixing zone 111 scraped by the scraper device 13 remains unchanged, the scraper 132 with a spiral design can reduce the contact area between the scraper 132 and the inner wall of the mixing zone 111 at the same time compared with other types of scrapers 132, reduce the friction between the scraper 132 and the cylinder 11, and thus reduce the damage caused by the scraper device 13 to the cylinder 11.

[0045] According to one embodiment of the present invention, the scraper device 13 includes a stopper 133, which is disposed between the mixing zone 111 and the stirring zone 112 and forms a material channel 113 with the inner wall of the mixing chamber. The stopper 133 is provided with a through hole 1333, and the end of the scraper main shaft 131 facing the stirring zone 112 is rotatably disposed in the through hole 1333. The stopper 133 can be understood as the boundary between the mixing zone 111 and the stirring zone 112. The stopper 133 is connected to the barrel 11 and rotates with the barrel 11. A material channel 113 is formed between the stopper 133 and the inner wall of the mixing chamber. The material channel 113 provides an orderly and controllable flow path for the material to flow from the mixing zone 111 into the stirring zone 112, ensuring that the mixed material can flow into the stirring zone 112. At the same time, a through hole 1333 is provided on the stop member 133, and one end of the scraper shaft 131 is rotatably provided in the through hole 1333. When the scraper shaft 131 rotates, the inner wall of the through hole 1333 can provide a certain supporting force for the scraper shaft 131, ensuring the stability of the scraper shaft 131 during rotation, thereby improving the stability of the scraping device 13 in scraping.

[0046] In some embodiments, a plurality of connecting plates 1332 spaced circumferentially from each other are formed on the periphery of the stop member 133, and a material channel 113 is formed between two adjacent connecting plates 1332 and the outer peripheral surface of the active member and the inner wall of the mixing chamber. The provision of multiple connecting plates 1332 can improve the assembly stability of the stop member 133, increase the overall cross-sectional area of ​​the material channel 113, reserve sufficient space for the flow of the material, and reduce the influence of the stop member 133 on the material flow.

[0047] In some embodiments, the through hole 1333 formed in the stopper 133 may also allow material to pass through.

[0048] According to one embodiment of the present invention, a flared section 1331 with a gradually increasing diameter is formed on the side of the through hole 1333 facing away from the mixing zone 111. A reduced diameter section 1311 with a gradually increasing diameter is formed on the end of the scraping shaft 131 facing the stirring zone 112. The reduced diameter section 1311 is accommodated within the flared section 1331. The flared section 1331 and the reduced diameter section 1311 cooperate with each other to limit each other, preventing the scraping shaft 131 from deviating toward the end of the barrel 11 away from the stirring zone 112, thereby ensuring the stability of the scraping shaft 131.

[0049] In some embodiments, the inclination angle between the flared section 1331 and the axis and the inclination angle between the diameter-reducing section 1311 and the axis may both be 45°.

[0050] According to one embodiment of the present application, the material spraying device 14 comprises: acid feeding pipes 141, which are configured to be arranged symmetrically on both sides of the material scraping device 13, and the extending direction of the acid feeding pipes 141 is parallel to the axis of the cylinder 11; and nozzles 142, which are arranged on the acid feeding pipes 141 and configured to be arranged symmetrically on both sides of the acid feeding pipes 141, and each nozzle 142 is inclined towards the bottom of the mixing area 111.

[0051] By arranging the acid feeding pipes 141 and the nozzles 142, and by inclining the nozzles 142 towards the bottom of the mixing area 111, the liquid material can be uniformly and widely sprayed into the mixing area 111, and the material mixing efficiency can be improved. Specifically, the acid feeding pipes 141 can be arranged symmetrically on both sides of the material scraping device 13, and the extending direction of the acid feeding pipes 141 is parallel to the axis of the cylinder 11, so that the liquid material can be sprayed from both sides of the material scraping device 13 towards the bottom of the mixing area 111, and the liquid material can be sprayed in multiple directions, thereby improving the mixing efficiency of the solid material and the liquid material.

[0052] Each acid feeding pipe 141 is provided with multiple nozzles 142, each nozzle 142 is formed with a material spraying outlet, and the multiple nozzles 142 spray the liquid material at the same time, thereby accelerating the mutual penetration and mixing speed between the solid material and the liquid material, and significantly improving the mixing efficiency. The nozzles 142 are arranged to be inclined towards the bottom of the mixing area 111, which helps the material to be better mixed with the material at the bottom of the mixing area 111, reduces the splashing and waste of the liquid material during spraying, and improves the mixing effect of the material.

[0053] In some embodiments, as shown in Figure 4 The angle between the nozzle 142 and the horizontal direction can be preferably 45°, and the material spraying angle of the material spraying outlet of the nozzle 142 can be 90°, so that the liquid material sprayed by the nozzle 142 can cover the area between the horizontal direction and the position directly below the nozzle 142 (the area is 90°), which can reduce the splashing of the liquid material in other directions during spraying, and at the same time, the liquid material can be mixed with the solid material temporarily in the air during spraying, thereby further improving the mixing effect of the material in the mixing area 111.

[0054] According to one embodiment of the present application, three nozzles 142 are arranged on each acid feeding pipe 141, and the opening cross-sectional areas of the material spraying outlets of the three nozzles 142 correspondingly decrease in the direction from the mixing area 111 to the stirring area 112. As shown in Figure 1-Figure 3As shown, three nozzles 142 can be provided on each acid inlet pipe 141 (the number of nozzles 142 can be adaptively adjusted according to the specific parameters such as the size of the cylinder 11 and the solid material demand during actual assembly). The opening cross-sectional area of ​​the spray outlet of the three nozzles 142 decreases in the direction from the mixing zone 111 toward the stirring zone 112, which can achieve gradual refinement and uniform distribution of the material during the mixing process. Specifically, when the feeding device 12 feeds the solid material into the mixing zone 111, most of the solid material accumulates at the end of the mixing zone 111 away from the stirring zone 112. Therefore, the larger opening cross-sectional area enables the nozzle 142 away from the stirring zone 112 to spray More liquid material is sprayed out to ensure that there is enough liquid material to mix with the accumulated solid material. At the same time, the opening cross-sectional area of ​​the three spray outlets is designed to decrease successively in the direction from the mixing zone 111 toward the stirring zone 112, so that the three nozzles 142 can spray the liquid material widely to various parts of the mixing zone 111, thereby achieving large-area coverage of the liquid material in the mixing zone 111, ensuring that the solid material in the mixing zone 111 can be fully mixed with the liquid material, and in the mixing zone 111 near the stirring zone 112, there is less solid material and correspondingly less liquid material, which can avoid waste caused by excessive spraying of liquid material and even corrosion and damage to the cylinder 11.

[0055] In some embodiments, the distance between two adjacent nozzles 142 can be adaptively adjusted according to parameters such as the size of the acid inlet pipe 141 and the axial length of the mixing zone 111 .

[0056] According to one embodiment of the present invention, the stirring device 15 includes: a stirring shaft 151 and a plow assembly 152. The stirring shaft 151 is rotatably arranged in the stirring zone 112 and extends on the axis of the cylinder 11. The rotation direction of the stirring shaft 151 is opposite to the rotation direction of the cylinder 11. The plow assembly 152 is constructed to be sleeved on the stirring shaft 151 and rotates with the stirring shaft 151 and is arranged at intervals in the extension direction of the stirring shaft 151. Each plow assembly 152 is formed with at least one blade 1526.

[0057] The stirring shaft 151 is rotatably disposed within the stirring zone 112. The plow assembly 152 is sleeved on the stirring shaft 151 and rotates with the stirring shaft 151. The plow assembly 152 is formed with a blade 1526. When the mixed material enters the stirring zone 112, the stirring shaft 151 drives the plow assembly 152 to rotate. The blade 1526 on the plow assembly 152 can break up adhered and agglomerated materials, thereby improving the mixing effect of the solid and liquid materials. The stirring shaft 151 extends along the axis of the barrel 11, which ensures smooth rotation of the stirring device 15 within the barrel 11 and prevents the rotation of the barrel 11 from affecting the rotation of the stirring device 15. Furthermore, the design of the stirring shaft 151 rotating in opposite directions relative to the barrel 11 causes the material within the barrel 11 to be subjected to shear forces in opposite directions from the barrel 11 and the stirring device 15. This shear force helps break up material agglomerations and further promotes mixing between the materials. The plurality of plowshare assemblies 152 are arranged at intervals in the extension direction of the stirring shaft 151 , ensuring that the material is stirred evenly in the entire stirring zone 112 , thereby avoiding the problem of local uneven mixing.

[0058] According to one embodiment of the present invention, the plow assembly 152 includes: a connecting portion 1521 and a plow body 1523, the connecting portion 1521 is sleeved on the stirring shaft 151, and a connecting shaft 1522 extending in the radial direction is formed on the connecting portion 1521; the plow body 1523 is connected to the connecting shaft 1522, and a blade 1526 is formed on the side of the plow body 1523 facing the rotation direction of the stirring shaft 151, and a first blade 1524 and a second blade 1525 spaced apart from each other are provided on the side of the plow body 1523 away from the rotation direction of the stirring shaft 151, the angle between the first blade 1524 and the extension direction of the connecting shaft 1522 is β1, and the angle between the second blade 1525 and the extension direction of the connecting shaft 1522 is β2, and it satisfies the following conditions: 2°≤β2-β1≤5°.

[0059] like Figure 1-Figure 3As shown, a connecting portion 1521 is provided on the plow assembly 152, and the connecting portion 1521 is sleeved on the stirring shaft 151 and can rotate with the stirring shaft 151. A connecting shaft 1522 extending in the radial direction is formed on the connecting portion 1521, and a plow body 1523 is provided at the free end of the connecting shaft 1522, that is, the plow body 1523 is synchronously rotated with the stirring shaft 151 through the connecting shaft 1522 and the connecting portion 1521, and a blade 1526 is formed on the side of the plow body 1523 facing the rotation direction of the stirring device 15, and the blade 1526 can improve the effect of the plow assembly 152 to break up the material agglomeration, so that the material mixing is more uniform. A first blade 1524 and a second blade 1525 are formed on the side of the plow body 1523 away from the rotation direction of the stirring device 15. The arrangement of the first blade 1524 and the second blade 1525 can further improve the effect of the plow assembly 152 in breaking up material agglomerations, and there is an angle difference between the first blade 1524 and the second blade 1525. For example, the first blade 1524 is inclined toward the mixing zone 111 in the direction from the mixing zone 111 to the stirring zone 112, while the second blade 1525 is inclined away from the mixing zone 111 in the direction from the mixing zone 111 to the stirring zone 112. During the operation of the stirring device 15, the first blade 1524 and the second blade 1525 can not only break up material agglomerations, but also the first blade 1524 and the second blade 1525 can respectively apply thrusts in different directions to the material. Specifically, Figure 5 As shown, β1 is the angle between the first blade 1524 and the extending direction of the connecting shaft 1522, β2 is the angle between the second blade 1525 and the extending direction of the connecting shaft 1522, and β2>β1. It should be noted that the extending direction of the stirring shaft 151 is radial. For the convenience of marking, Figure 5 The three dashed lines in the figure, from left to right, represent the radial projection of the first blade 1524, the radial projection of the vertical plane, and the radial projection of the second blade 1525. Therefore, the plow assembly 152 as a whole can generate a thrust on the mixed material toward the rear end of the cylinder 11, allowing the material to flow normally within the cylinder 11. During actual assembly, the difference between the two angles is β2-β1, and can satisfy 2°≤β2-β1≤5°. When β2-β1 is less than 2°, β1 and β2 are close, that is, the thrust generated by the first blade 1524 and the second blade 1525 are of similar magnitude, and the forces in the two directions cancel each other out. At this time, the stirring device 15 is likely to hinder the flow of the material. When β2-β1 is greater than 5°, the thrust difference between the second blade 1525 and the first blade 1524 is too large, which will cause the material flow rate to be too fast, affecting the time the material stays in the stirring chamber and thus affecting the mixing effect of the material.

[0060] According to one embodiment of the present invention, the material mixing equipment 1 further includes: a support platform 161, a first bracket 162 and a second bracket 163, the support platform 161 is arranged below the cylinder 11 and is suitable for supporting the cylinder 11; the first bracket 162 is supported on one end of the support platform 161; the second bracket 163 is supported on the other end of the support platform 161; wherein, the height of at least one of the first bracket 162 and the second bracket 163 is adjustable.

[0061] A support platform 161 is located below the barrel 11 and supports the barrel 11. During assembly, a transmission mechanism, such as meshing gears or a conveyor belt, can be provided between the support platform 161 and the barrel 11 to ensure that the support platform 161 does not affect the rotation of the barrel 11. A first bracket 162 and a second bracket 163 can be provided below the support platform 161, spaced apart from each other. The first bracket 162 is located at the front end of the support platform 161, and the second bracket 163 is located at the rear end of the support platform 161. The height of the first bracket 162 is adjustable. During use of the material mixing device 1, the height of the first bracket 162 can be adjusted so that the front end of the barrel 11 is slightly higher than the rear end of the barrel 11, thereby allowing the material in the mixing chamber to flow naturally to the rear end of the barrel 11 through gravity. The specific height adjustment can be adaptively adjusted based on the actual dimensional parameters of the material mixing device 1. The provision of the first bracket 162 and the second bracket 163 provides the material mixing device 1 with greater flexibility and adaptability to different environments (e.g., uneven ground).

[0062] In some embodiments, the second bracket 163 may also be configured to be height-adjustable.

[0063] In some embodiments, a high-temperature resistant anti-corrosion layer may be provided on the inner wall of the mixing zone 111 .

[0064] In some embodiments, from the front to the rear of the cylinder 11, the cylinder 11 can rotate clockwise at a speed of 10 r / min; the scraper 13 can rotate clockwise at a speed of 15 r / min; and the stirring device 15 can rotate counterclockwise at a speed of 35-40 r / min. Furthermore, the cylinder 11, scraper 13, and stirring device 15 can be driven by different drive motors.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0067] In the description of the present invention, "plurality" means two or more.

[0068] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0069] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A material mixing device, characterized in that: include: A cylinder (11), wherein a mixing cavity is formed in the cylinder (11), and a mixing zone (111) and a stirring zone (112) are provided in the mixing cavity and are communicated with each other; a feeding device (12), the feeding device (12) being in communication with the mixing zone (111) and being adapted to feed solid material into the mixing zone (111); a scraping device (13), the scraping device (13) being rotatably disposed in the mixing zone (111), and at least a portion of the scraping device (13) being in contact with the inner wall of the mixing zone (111), the scraping device (13) comprising a scraping spindle (131) and a stopper (133), the scraping spindle (131) being rotatably disposed in the mixing zone (111) and being parallel to the axis of the cylinder (11), the rotation direction of the scraping spindle (131) being the same as the rotation direction of the cylinder (11) and having a rotation speed difference; The stopper (133) is arranged between the mixing zone (111) and the stirring zone (112), a material channel (113) is formed between the stopper (133) and the inner wall of the mixing chamber, a through hole (1333) is provided on the stopper (133), and one end of the scraping main shaft (131) facing the stirring zone (112) is rotatably arranged in the through hole (1333); A flared section (1331) with a gradually increasing diameter is formed on the side of the through hole (1333) facing away from the mixing zone (111), and a reduced diameter section (1311) with a gradually increasing diameter is formed on one end of the scraping main shaft (131) facing the stirring zone (112), and the reduced diameter section (1311) is accommodated in the flared section (1331); a spraying device (14), wherein at least a portion of the spraying device (14) extends to the mixing zone (111) and is suitable for delivering liquid material into the mixing zone (111), wherein the spraying device (14) is constructed as a plurality of devices arranged on both sides of the scraping device (13), and each of the spraying devices (14) is provided with at least one spraying outlet, and the spraying outlet is inclined toward the bottom of the mixing zone (111); A stirring device (15) is rotatably disposed in the stirring zone (112) to stir the mixture in the stirring zone (112).

2. The material mixing equipment according to claim 1, characterized in that: The scraping device (13) further comprises: A scraper (132) is connected to the scraper main shaft (131) and rotates with the scraper main shaft (131), and at least a portion of the scraper (132) contacts the inner wall of the mixing zone (111) to scrape off material adhered to the inner wall of the mixing zone (111).

3. The material mixing equipment according to claim 2, characterized in that: The scraper member (132) spirally surrounds at least a portion of the outer circumference of the scraper main shaft (131).

4. The material mixing equipment according to claim 1, characterized in that: The spraying device (14) comprises: Acid inlet pipes (141), the acid inlet pipes (141) are configured to be symmetrically arranged on both sides of the scraping device (13), and the extension direction of the multiple acid inlet pipes (141) is parallel to the axis of the cylinder (11); A nozzle (142) is provided on the acid inlet pipe (141) and is constructed as a plurality of nozzles (142) spaced apart in the extending direction of the acid inlet pipe (141), the plurality of nozzles (142) are arranged obliquely toward the bottom of the mixing zone (111), and each nozzle (142) is formed with the spray outlet.

5. The material mixing equipment according to claim 4, characterized in that: Three nozzles (142) are arranged at intervals on each of the acid inlet pipes (141), and the opening cross-sectional areas of the spray outlets corresponding to the three nozzles (142) decrease in sequence in the direction from the mixing zone (111) toward the stirring zone (112).

6. The material mixing equipment according to claim 1, characterized in that: The stirring device (15) comprises: a stirring shaft (151), the stirring shaft (151) being rotatably disposed in the stirring zone (112) and extending on the axis of the cylinder (11), the rotation direction of the stirring shaft (151) being opposite to the rotation direction of the cylinder (11); A plowshare assembly (152) is constructed to be sleeved on the stirring shaft (151), rotate with the stirring shaft (151), and be arranged at intervals in the extension direction of the stirring shaft (151). Each plowshare assembly (152) is formed with at least one blade (1526).

7. The material mixing equipment according to claim 6, characterized in that: The plow assembly (152) includes: A connecting portion (1521), the connecting portion (1521) being sleeved on the stirring shaft (151), and a connecting shaft (1522) extending in the radial direction being formed on the connecting portion (1521); A plow body (1523), the plow body (1523) is connected to the connecting shaft (1522), the blade (1526) is formed on the side of the plow body (1523 facing the rotation direction of the stirring shaft (151), and a first blade (1524) and a second blade (1525) spaced apart from each other are provided on the side of the plow body (1523) facing away from the rotation direction of the stirring shaft (151), the angle between the first blade (1524) and the extension direction of the connecting shaft (1522) is β1, and the angle between the second blade (1525) and the extension direction of the connecting shaft (1522) is β2, and the following conditions are satisfied: 2°≤β2-β1≤5°.

8. The material mixing equipment according to claim 1, characterized in that: Also includes: a supporting platform (161), the supporting platform (161) being arranged below the cylinder (11) and being suitable for supporting the cylinder (11); a first bracket (162), the first bracket (162) being supported on one end of the support platform (161); A second bracket (163), the second bracket (163) is supported at the other end of the support platform (161); wherein The height of at least one of the first bracket (162) and the second bracket (163) is adjustable.

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