Material mixing equipment

Abstract

The invention discloses material mixing equipment. The material mixing equipment comprises a barrel, a feeding device, a scraping device, a spraying device and a stirring device, a mixing cavity is formed in the barrel, and a mixing area and a stirring area which are communicated with each other are arranged in the mixing cavity; the feeding device is communicated with the material mixing area and is suitable for feeding solid materials into the material mixing area; the scraping device is rotatably arranged in the mixing area, and at least part of the scraping device is attached to the inner wall of the mixing area; at least part of the material spraying devices extend to the material mixing area and are suitable for putting liquid materials into the material mixing area, the material spraying devices are arranged on the two sides of the material scraping device, each material spraying device is provided with at least one material spraying outlet, and the material spraying outlets incline towards the bottom of the material mixing area; the stirring device is rotatably arranged in the stirring area to stir the mixture in the stirring area. According to the material mixing equipment disclosed by the invention, the scraping device, the stirring device and the spraying device are reasonably arranged, so that the material mixing effect is improved.

Description

Technical Field

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

[0002] Battery powder mixed acid technology is a pretreatment process that converts precious metals in battery powder into corresponding salts by mixing battery powder with acid to prepare for further recovery of precious metals in subsequent stages. In related technologies, due to its own limitations, the material mixing effect of material mixing equipment is not ideal. In order to enable the material mixing equipment to achieve efficient mixing of battery powder and acid solution, it is necessary to optimize the structure of the equipment 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. According to the material mixing device of the present invention, a mixing zone and a stirring zone are defined in a cylinder, a scraping device is provided in the mixing zone for scraping off the adhered material on the inner wall of the mixing zone, and a spraying outlet inclined toward the bottom of the mixing zone is also provided for spraying liquid material to ensure that the liquid material can be fully mixed with the solid material, and a stirring device is provided in the stirring zone for stirring the mixed material, thereby improving the material mixing effect.

[0004] The material mixing equipment according to the present invention comprises 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 zone and a stirring zone which are connected to each other are arranged in the mixing chamber; the feeding device is connected to the mixing zone and is suitable for feeding solid materials into the mixing zone; the scraping device is rotatably arranged in the mixing zone, and at least part of the scraping device is in contact with the inner wall of the mixing zone; at least part of the spraying device extends to the mixing zone and is suitable for feeding liquid materials into the mixing zone, 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 zone; the stirring device is rotatably arranged in the stirring zone to stir the mixture in the stirring zone.

[0005] According to the material mixing equipment of the present invention, a cylinder is provided, and a mixing area and a stirring area are formed in the cylinder. The mixing area can provide space for mixing solid materials (battery powder) and liquid materials (acidic solution); the stirring area can process the mixed mixture to improve the mixing effect of the materials, thereby optimizing the material mixing process. The scraper device is rotatably arranged in the mixing area, and at least part of the scraper device is in contact with the inner wall of the mixing area. During the rotation of the cylinder to achieve the 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 area, thereby reducing the residue and waste of materials. At the same time, the solid materials can be turned over to avoid the accumulation of materials at the bottom, thereby ensuring the uniform distribution of the solid materials in the mixing area and improving the mixing efficiency of the material mixing equipment. The spraying device can be provided in plurality and respectively located on both sides of the scraping device. The spraying outlet on each spraying device is inclined toward the bottom of the mixing zone, so that the liquid material can be sprayed directly to the bottom of the mixing zone. As the cylinder body rotates, the solid material will accumulate at the bottom of the mixing zone. At this time, the liquid material can be evenly sprayed to the accumulation position of the solid material through the inclined design of the spraying 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 scraper device includes: a scraper main shaft and a scraper member, the scraper main shaft is rotatably arranged in the mixing zone and is parallel to the axis of the cylinder; the scraper member is connected to the scraper main shaft and rotates with the scraper main shaft, at least a part of the scraper member is in contact with 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 scraper main shaft is the same as the rotation direction of the cylinder and has a rotation 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 spindle.

[0008] According to one embodiment of the present invention, the scraper 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 scraper main shaft is rotatably arranged in the through hole with one end facing the stirring zone.

[0009] According to one embodiment of the present invention, a flaring section with a gradually increasing diameter is formed on the side of the through hole away from the mixing zone, and a reducing section with a gradually increasing diameter is formed on the end of the scraping main shaft facing 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 as a plurality of symmetrically arranged on both sides of the scraper device, and the extension direction of the plurality of acid inlet pipes is parallel to the axis of the cylinder; the nozzle is arranged on the acid inlet pipe and is constructed as a plurality of spaced-apart nozzles in the extension direction of the acid inlet pipe, and the plurality of nozzles are respectively arranged obliquely toward the bottom of the mixing zone, and the spray outlet is formed on each of the nozzles.

[0011] According to one embodiment of the present invention, three nozzles are arranged at intervals 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 rotates with the stirring shaft and is 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 a first blade and a second blade spaced apart from each other are provided on the side of the plow body away from the rotation direction of the stirring shaft, 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 also includes: a supporting platform, a first bracket and a second bracket, the supporting platform is arranged below the cylinder and is suitable for supporting the cylinder; the first bracket is supported at one end of the supporting platform; the second bracket is supported at 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 given in part in the following description and in part will be obvious from the following description, or will be learned through 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 easily understood from the description of the embodiments in conjunction with the following 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 in 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 plow according to one embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of the cooperation between the scraper spindle and the stopper according to an 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] The scraper device 13, the scraper spindle 131, the diameter-reducing section 1311, the scraper member 132, the stopper 133, the flaring section 1331, the connecting plate 1332, and the through hole 1333;

[0028] A spraying device 14, an acid inlet pipe 141, and a nozzle 142;

[0029] Agitating device 15, agitating shaft 151, a plow assembly 152, a connecting portion 1521, a connecting shaft 1522, a plow body 1523, a first blade 1524, a second blade 1525, and a blade 1526;

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

[0031] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] Battery powder mixed acid technology is a pretreatment process that converts precious metals in battery powder into corresponding salts by mixing battery powder with acid to prepare for further recovery of precious metals in subsequent stages. In related technologies, due to its own limitations, the material mixing effect of material mixing equipment is not ideal. In order to enable the material mixing equipment to achieve efficient mixing of battery powder and acid solution, it is necessary to optimize the structure of the equipment 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 Figure 1-Figure 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 comprises a barrel 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 barrel 11, and a mixing zone 111 and a stirring zone 112 which are connected to each other are arranged in the mixing chamber; the feeding device 12 is connected to the mixing zone 111 and is suitable for feeding solid materials 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 materials 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, and the spraying outlet 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 area 111 and a stirring area 112 are formed in the barrel 11. The mixing area 111 can provide space for mixing solid materials (battery powder) and liquid materials (acidic solution); the stirring area 112 can process the mixed mixture to improve the mixing effect of the materials, thereby optimizing the material mixing process. Specifically, in the mixing area 111, solid materials can be placed through a placing device 12, and a hopper structure can be provided on the placing device 12, and the hopper structure is connected to the mixing area 111. The placing device 12 can realize the rapid placement of solid materials; liquid materials can be placed through a spraying device 14, and at least part of the spraying device 14 extends into the mixing area 111. A spraying outlet is provided on the spraying device 14. After the solid materials are placed (or a certain amount is placed), the liquid materials can enter the mixing area 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 scraper device 13 is rotatably disposed in the mixing zone 111, and at least a portion of the scraper device 13 is aligned with the inner wall of the mixing zone 111. When the cylinder 11 rotates to mix the solid material and the liquid material, the scraper 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, the solid material can be turned over 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 scraper device 13. The spray outlet on each spray device 14 is inclined toward the bottom of the mixing zone 111, so that the liquid material can be directly sprayed to the bottom of the mixing zone 111. Since the cylinder 11 is rotating, the solid material will accumulate at the bottom of the mixing zone 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 is convenient for mixing 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 the mixing efficiency and ensuring the mixing quality.

[0039] In some embodiments, the scraper 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 scraper 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 scraper 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 scraper device 13 includes: a scraper main shaft 131 and a scraper member 132, the scraper main shaft 131 is rotatably arranged in the mixing zone 111 and is parallel to the axis of the cylinder 11; the scraper member 132 is connected to the scraper main shaft 131 and rotates with the scraper main shaft 131, at least a part of the scraper 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 scraper main shaft 131 is the same as the rotation direction of the cylinder 11 and has a rotation speed difference.

[0041] The scraper main shaft 131 is rotatably disposed in the mixing area 111, and the scraper member 132 is connected to the scraper main shaft 131. When working, the scraper member 132 can effectively scrape off the materials adhering to the inner wall of the mixing area 111 as the scraper main shaft 131 rotates, which can effectively prevent the materials from adhering to and accumulating on the inner wall of the mixing area 111. When assembled, the scraper main shaft 131 is parallel to the axis of the cylinder 11, which can ensure the stability of the scraper device 13 during operation and reduce the mutual interference between the scraper device 13 and the cylinder 11. The scraper main shaft 131 and the cylinder 11 have the same rotation direction but a speed difference. The same rotation direction can reduce the obstruction of the scraper device 13 to the flow of materials, and the speed difference can prevent the scraper device 13 from rotating synchronously with the cylinder 11 and losing the scraping function, ensuring that the scraper device 13 can effectively remove the materials adhering to the inner wall of the mixing area 111.

[0042] During the rotation of the barrel 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 element 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 rotation speed difference enables the scraper element 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 part of the outer circumference of the scraper main 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 main shaft 131, which can ensure that the mixed material can smoothly enter the stirring area 112. At the same time, the spiral motion promotes the circulation and tumbling of the material in the mixing container, thereby improving the uniformity and efficiency of mixing.

[0044] In addition, the spiral design can reduce the damage of 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, reduce the friction between the scraper 132 and the cylinder 11, and thus reduce the damage of 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, the stopper 133 is arranged between the mixing zone 111 and the stirring zone 112, and a material channel 113 is formed between the stopper 133 and the inner wall of the mixing chamber, a through hole 1333 is arranged on the stopper 133, and one end of the scraper main shaft 131 facing the stirring zone 112 is rotatably arranged 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 cylinder 11 and rotates with the cylinder 11, and a material channel 113 is formed between the stopper 133 and the inner wall of the mixing chamber, and the material channel 113 provides an orderly and controllable flow path for the material to enter the stirring zone 112 from the mixing zone 111, ensuring that the mixed material can flow into the stirring zone 112. At the same time, a through hole 1333 is provided on the stopper 133, and one end of the scraper shaft 131 is rotatably disposed 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, thereby ensuring the stability of the scraper shaft 131 during rotation, thereby improving the scraping stability of the scraper device 13.

[0046] In some embodiments, a plurality of connecting plates 1332 spaced apart from each other in the circumferential direction are formed on the outer periphery of the stop member 133, and a material channel 113 is formed between two adjacent connecting plates 1332, the outer peripheral surface of the active member, and the inner wall of the mixing chamber. The provision of a plurality of 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 boring flow, 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 flaring section 1331 with a gradually increasing diameter is formed on the side of the through hole 1333 away from the mixing zone 111, and a reducing section 1311 with a gradually increasing diameter is formed on the end of the scraping spindle 131 facing the stirring zone 112, and the reducing section 1311 is accommodated in the flaring section 1331. The flaring section 1331 and the reducing section 1311 cooperate with each other and can limit each other, so as to prevent the scraping spindle 131 from deviating toward the end of the barrel 11 away from the stirring zone 112, thereby ensuring the stability of the scraping spindle 131.

[0049] In some embodiments, the inclination angle between the expansion 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 invention, the spraying device 14 includes: an acid inlet pipe 141 and a nozzle 142. The acid inlet pipe 141 is constructed to be symmetrically arranged on both sides of the scraper device 13, and the extension direction of the multiple acid inlet pipes 141 is parallel to the axis of the cylinder 11; the nozzle 142 is arranged on the acid inlet pipe 141 and is constructed to be spaced apart in the extension direction of the acid inlet pipe 141. The multiple nozzles 142 are respectively arranged obliquely toward the bottom of the mixing area 111, and a spray outlet is formed on each nozzle 142.

[0051] By setting a plurality of acid inlet pipes 141 and nozzles 142, and arranging the nozzles 142 in a tilted manner toward the bottom of the mixing zone 111, it is ensured that the liquid material can be uniformly and widely sprayed into the mixing zone 111, and the material mixing efficiency can be improved. Specifically, the acid inlet pipes 141 can be set to two symmetrical ones on both sides of the scraping device 13 (or other numbers, determined according to the actual needs of the material mixing device 1), and the extension directions of the two acid inlet pipes 141 are respectively parallel to the axis of the cylinder 11, so that the liquid material can be sprayed from both sides of the scraping device 13 toward the bottom of the mixing zone 111, and the liquid material can be sprayed in multiple directions, which can improve the mixing efficiency of the solid material and the liquid material.

[0052] A plurality of nozzles 142 are provided on each acid inlet pipe 141, and a spraying outlet is formed on each nozzle 142. The plurality of nozzles 142 spray liquid materials at the same time, which can accelerate the mutual penetration and mixing speed between the solid material and the liquid material, and can significantly improve the mixing efficiency. The nozzles 142 are arranged obliquely toward 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, and can reduce the splashing and waste of the liquid material during the spraying process, and improve the mixing effect of the material.

[0053] In some embodiments, Figure 4 As shown, the angle between the nozzle 142 and the horizontal direction can be preferably 45°, and the spraying angle of the spray outlet on the nozzle 142 can be 90°. At this time, the liquid material sprayed from the nozzle 142 can cover the area from the horizontal direction to the area directly below the nozzle 142 (the area is 90°), which can reduce the splashing of the liquid material in other directions during the spraying process. At the same time, the liquid material can also be mixed with the solid material temporarily in the air during the spraying process, further improving the mixing effect of the materials in the mixing area 111.

[0054] According to one embodiment of the present invention, three nozzles 142 are arranged at intervals on each acid inlet pipe 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. Figure 1-Figure 3As shown, three nozzles 142 can be arranged on each acid inlet pipe 141 (the number of nozzles 142 can be adaptively adjusted according to the specific size of the cylinder 11, the solid material demand and other parameters during actual assembly), and the opening cross-sectional areas of the spray outlets of the three nozzles 142 are successively reduced in the direction from the mixing zone 111 toward the stirring zone 112, so that the material can be gradually refined and evenly distributed 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 one 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 areas of the three spray outlets are designed to decrease successively in the direction from the mixing zone 111 to 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 a large area coverage of the mixing zone 111 by the liquid material, 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 are fewer solid materials and correspondingly fewer liquid materials, 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 arranged in the stirring zone 112, and the plow assembly 152 is sleeved on the stirring shaft 151 and can rotate with the stirring shaft 151. At the same time, a blade 1526 is formed on the plow assembly 152. When the mixed material enters the stirring zone 112, the stirring shaft 151 drives the plow assembly 152 to rotate, and the blade 1526 on the plow assembly 152 can break the adhered and agglomerated materials to improve the mixing effect of solid materials and liquid materials. The stirring shaft 151 extends on the axis of the barrel 11, which can make the stirring device 15 rotate more smoothly in the barrel 11 and avoid the rotation of the barrel 11 affecting the rotation of the stirring device 15. At the same time, the design of the stirring shaft 151 rotating in the opposite direction to the barrel 11 makes the material in the barrel 11 subject to shear forces in two opposite directions of the barrel 11 and the stirring device 15. This shear force helps to break the agglomeration of the materials and further promote the 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 area 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 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 that 2°≤β2-β1≤5°.

[0059] like Figure 1-Figure 3As shown, a connecting portion 1521 is provided on the plowshare 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 plowshare body 1523 is provided at the free end of the connecting shaft 1522, that is, the plowshare body 1523 can realize synchronous rotation 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 plowshare body 1523 facing the rotation direction of the stirring device 15, and the blade 1526 can improve the effect of the plowshare assembly 152 to break up the material agglomeration and make the material mixing more uniform. A first blade 1524 and a second blade 1525 are formed on the side of the plow blade 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 blade assembly 152 in breaking up the material agglomeration, 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 the material agglomeration, 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 dotted lines in the figure are respectively the radial projection of the first blade 1524, the radial projection of the vertical plane, and the radial projection of the second blade 1525 from left to right. Therefore, the plow assembly 152 as a whole can generate a thrust toward the rear end of the cylinder 11 for the mixed material, so that the material can flow normally in the cylinder 11. In actual assembly, the angle difference between the two angles is β2-β1, and can satisfy 2°≤β2-β1≤5°. When β2-β1<2°, β1 and β2 are close, that is, the thrusts generated by the first blade 1524 and the second blade 1525 are close in magnitude, and the forces in the two directions cancel each other out. At this time, the stirring device 15 is easy to hinder the flow of the material; when β2-β1>5°, the thrust difference between the second blade 1525 and the first blade 1524 is too large, which will make the flow rate of the material 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 also includes: a supporting platform 161, a first bracket 162 and a second bracket 163, the supporting platform 161 is arranged below the cylinder 11 and is suitable for supporting the cylinder 11; the first bracket 162 is supported at one end of the supporting platform 161; the second bracket 163 is supported at the other end of the supporting platform 161; wherein, the height of at least one of the first bracket 162 and the second bracket 163 is adjustable.

[0061] The support platform 161 is located below the cylinder 11 and can support the cylinder 11. During assembly, a transmission matching structure can be set between the support platform 161 and the cylinder 11, such as meshing gears, or by means of a conveyor belt, etc., to ensure that the support platform 161 does not affect the rotation process of the cylinder 11. A first bracket 162 and a second bracket 163 spaced from each other can be set below the support platform 161. 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. When the material mixing device 1 is used, the height of the first bracket 162 can be adjusted so that the front end of the cylinder 11 is slightly higher than the rear end of the cylinder 11, so that the material in the mixing chamber can flow naturally to the rear end of the cylinder 11 by gravity. The specific adjustment height can be adaptively adjusted according to the actual size parameters of the material mixing device 1. The setting of the first bracket 162 and the second bracket 163 makes the material mixing device 1 more flexible and can also adapt to different environments (such as 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, in the direction from the front end to the rear end of the cylinder 11, the cylinder 11 can turn clockwise, and the speed can be 10r / min; the rotation direction can be clockwise, and the speed can be 15r / min; the rotation direction of the stirring device 15 can be counterclockwise, and the speed can be 35-40r / min. The cylinder 11, the scraper device 13 and the stirring device 15 can be driven by different drive motors respectively.

[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 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, and do not indicate or imply that the referred device or element 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 that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0069] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes 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] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the 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 present invention, and that the scope of the present 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 chamber is formed in the cylinder (11), wherein a mixing zone (111) and a stirring zone (112) which are communicated with each other are arranged in the mixing chamber; A delivery device (12), the delivery device (12) being in communication with the mixing zone (111) and being adapted to deliver 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 an inner wall of the mixing zone (111); a spraying device (14), at least a portion of which extends to the mixing zone (111) and is suitable for delivering liquid material into the mixing zone (111), the spraying device (14) being constructed as a plurality of devices arranged on both sides of the scraping device (13), each of the spraying devices (14) being provided with at least one spraying outlet, and the spraying outlet being inclined toward the bottom of the mixing zone (111); A stirring device (15), wherein the 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) comprises: a scraping spindle (131), the scraping spindle (131) being rotatably disposed in the mixing zone (111) and parallel to the axis of the cylinder (11); a scraper (132), the scraper (132) being connected to the scraper main shaft (131) and rotating with the scraper main shaft (131), at least a portion of the scraper (132) being in contact with the inner wall of the mixing zone (111) to scrape off the material adhering to the inner wall of the mixing zone (111); The rotation direction of the scraper main shaft (131) is the same as the rotation direction of the barrel (11), and there is a rotation speed difference.

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 3, characterized in that: The scraping device (13) comprises: A stopper (133), wherein the stopper (133) is arranged between the mixing zone (111) and the stirring zone (112) and a material channel (113) is formed between the stopper (133) and the inner wall of the mixing chamber, and a through hole (1333) is arranged on the stopper (133), and one end of the scraper main shaft (131) facing the stirring zone (112) is rotatably arranged in the through hole (1333).

5. The material mixing equipment according to claim 4, characterized in that: A flaring 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 reducing 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 reducing section (1311) is accommodated in the flaring section (1331).

6. 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) being configured to be arranged symmetrically on both sides of the scraper device (13), and the extension direction of the plurality of acid inlet pipes (141) is parallel to the axis of the cylinder (11); A nozzle (142), wherein the nozzle (142) is arranged on the acid inlet pipe (141) and is configured to be a plurality of nozzles arranged at intervals in the extension direction of the acid inlet pipe (141), wherein the plurality of nozzles (142) are arranged obliquely toward the bottom of the mixing zone (111), and each of the nozzles (142) is formed with the spray outlet.

7. The material mixing equipment according to claim 6, 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).

8. 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 barrel (11), the rotation direction of the stirring shaft (151) being opposite to the rotation direction of the barrel (11); A plowshare assembly (152), wherein the 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), and each of the plowshare assemblies (152) is formed with at least one blade (1526).

9. The material mixing equipment according to claim 8, characterized in that: The plow assembly (152) includes: A connecting portion (1521), wherein 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); A plowshare body (1523), wherein the plowshare body (1523) is connected to the connecting shaft (1522), the blade (1526) is formed on the side of the plowshare 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 plowshare 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, the angle between the second blade (1525) and the extension direction of the connecting shaft (1522) is β2, and the condition is satisfied that 2°≤β2-β1≤5°.

10. The material mixing equipment according to claim 1, characterized in that: Also includes: A supporting platform (161), the supporting platform (161) being disposed 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 supporting 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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