Anti-caking mixing device for iron tailing dry-mixed mortar

Abstract

The utility model relates to the technical field of iron tailing dry-mixed mortar production, and provides an anti-caking mixing device for iron tailing dry-mixed mortar, which comprises a shell, a conical hopper is arranged in the shell and is used for dividing an inner cavity of the shell into a first chamber and a second chamber, and a stirring component is arranged in the first chamber; a dispersing assembly is arranged below the conical hopper in the second chamber; the mixing device further comprises a lifting material returning assembly; various materials are stirred and mixed through the stirring assembly, the materials continuously fall into the second cavity through the discharging opening of the conical hopper, the falling materials are dispersed through the dispersing assembly so as to eliminate caking and caking tendency, and then the dispersed materials are returned to the first cavity through the lifting and returning assembly. The mixing is completed after a certain period of circulation, so that the problem of caking during mixing of various materials for preparing the iron tailing dry-mixed mortar is effectively solved, and the quality of the produced iron tailing dry-mixed mortar is ensured.

Description

Technical Field

[0001] This utility model relates to the field of iron tailings dry powder mortar production technology, specifically an anti-caking mixing device for iron tailings dry powder mortar. Background Technology

[0002] Iron tailings dry powder mortar, as an innovative building material, uses iron tailings—waste generated during iron ore beneficiation—as its main raw material. Replacing traditional sand or fillers, it is mixed with cement, additives, and other ingredients in a specific ratio to create a dry building material. This not only effectively alleviates the environmental pressure caused by iron tailings accumulation but also reduces the production cost of building materials.

[0003] During the production of dry powder mortar from iron tailings, the mixing of various materials can lead to clumping. This is because the clay minerals and fine particles in the iron tailings are highly hygroscopic and easily absorb water to form a liquid film, causing capillary adhesion between particles. Additionally, the electrostatic effect during dry powder mixing can cause the powder to agglomerate due to charge. As the mixing continues, the materials are prone to caking, affecting the mixing effect and consequently the quality of the produced dry powder mortar from iron tailings.

[0004] Therefore, this utility model proposes an anti-caking mixing device for dry iron tailings mortar to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-caking mixing device for dry iron tailings mortar to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mixing device for preventing caking of dry iron tailings mortar includes a shell, wherein a conical hopper is provided inside the shell to divide the inner cavity of the shell into a first chamber and a second chamber, and a stirring assembly is provided in the first chamber.

[0008] The second chamber is equipped with a dispersion component located below the conical hopper, which is used to disperse the raw materials for preparing iron tailings dry powder mortar;

[0009] The mixing device also includes a lifting and return assembly located outside the housing, used to return the dispersed material to the first chamber for remixing.

[0010] In one alternative: the first chamber has a feeding port at the top, and the second chamber has a discharging port at the bottom.

[0011] In one alternative: the lifting and return assembly includes a bucket elevator, a screw conveyor, or a belt conveyor.

[0012] In one alternative: the lifting and return assembly is a screw conveyor, including a cylinder mounted on a housing, a spiral auger mounted in the cylinder, and a drive component for driving the spiral auger to rotate. The lower end of the cylinder is connected to a second chamber, and its upper end is connected to a first chamber.

[0013] In one alternative: the dispersing component includes a frame that reciprocates up and down, and the frame is provided with multiple layers of shearing mesh from top to bottom for shearing and dispersing falling materials.

[0014] In one alternative: the frame is provided with a conical platform, and the tip of the conical platform is located directly below the discharge port of the conical hopper.

[0015] In one alternative: the dispersive component further includes a driving component for realizing the reciprocating motion of the frame, the driving component including a telescopic device and a linear actuator.

[0016] In one alternative: the driving component includes a groove on the wall of the housing, a slider slidably disposed on the groove, and a wheel rotatably disposed on the housing. The slider is fixedly connected to the frame. The housing is also provided with a boss. A compression spring is provided between the boss and the slider. The wheel is provided with at least one arc-shaped block that can contact the slider and push it to slide away from the wheel.

[0017] In one alternative embodiment: plates are provided on both sides below the conical hopper, and several crushing rods are staggered on the plates for crushing the material discharged from the conical hopper. The plates are slidably connected to the conical hopper by limiting rods, and support rods are hinged between the plates and the frame.

[0018] Compared with the prior art, the beneficial effects of this utility model embodiment are as follows:

[0019] Various materials are mixed by a mixing component. The materials fall continuously into the second chamber through the conical hopper discharge port. The dispersing component disperses the falling materials to eliminate agglomeration and the tendency to agglomerate. Then, the dispersing component returns the dispersed materials to the first chamber. The above actions are repeated for a certain period of time to complete the mixing. This effectively solves the problem of agglomeration when mixing various materials in the preparation of iron tailings dry powder mortar, and ensures the quality of the produced iron tailings dry powder mortar.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

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

[0023] Figure 2 This is a schematic diagram showing the arrangement of the frame, the conical platform, and the multi-layer shearing mesh in Embodiment 1 of this utility model.

[0024] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Figure 5 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0027] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0028] Figure 7 This is a schematic diagram of the arrangement between the wheel and the arc-shaped block in Embodiment 3 of this utility model.

[0029] Figure 8 A schematic diagram of the structure of Embodiment 4 of this utility model.

[0030] Figure 9 A schematic diagram of the structure of Embodiment 5 of this utility model.

[0031] Figure reference numerals: 1-Shell, 101-First chamber, 102-Second chamber, 2-Conical hopper, 3-Stirring assembly, 301-First rotating rod, 302-Stirring blade, 4-Feeding port, 5-Lifting and returning assembly, 501-Cylinder, 502-Spiral auger, 503-Driver, 6-Dispersion assembly, 601-Frame, 602-Conical platform, 603-Shearing mesh, 604-Groove, 605-Slider, 606-Boss, 607-Compression spring, 608-Wheel, 609-Arc block, 610-Plate, 611-Crushing rod, 612-Support rod, 613-Limiting rod, 7-First valve, 8-Disturbance plate, 9-Discharge port, 10-Second valve, 11-Third valve, 12-First transmission structure, 13-Second transmission structure, 14-Second rotating rod, 15-Third transmission structure. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Example 1

[0034] like Figure 1 , Figure 2 As shown, the anti-caking mixing device for dry iron tailings mortar in this embodiment includes a shell 1. A conical hopper 2 is provided inside the shell 1 to divide the inner cavity of the shell 1 into a first chamber 101 and a second chamber 102. A feeding port 4 is provided at the top of the first chamber 101. A first valve 7 is provided at the feeding end of the conical hopper 2. A stirring assembly 3 (including a first rotating rod 301 and stirring blades 302) is provided inside the first chamber 101. The lower end of the first rotating rod 301 is located above the feeding port of the conical hopper 2 and multiple disturbance plates 8 are evenly provided around the circumference. During stirring, the multiple disturbance plates 8 are driven to rotate synchronously, thereby disturbing the material near the feeding port of the conical hopper 2 and ensuring that the material falls smoothly) is stirred.

[0035] In the second chamber 102, a dispersion component 6 is provided below the conical hopper 2. The dispersion component 6 includes a frame 601 that moves up and down (driven by a telescopic device or linear actuator). The frame 601 has multiple layers of shearing mesh 603 from top to bottom for shearing and dispersing the falling material. It is used to disperse the raw materials for preparing dry iron tailings mortar. The shearing mesh 603 is composed of multiple (fine) steel wires that are interwoven, and the holes on the multiple layers of shearing mesh 603 are interwoven in the vertical direction. Preferably, a conical platform 602 is provided on the frame 601. The conical platform 602 is located above the multiple layers of shearing mesh 603, and the tip of the conical platform 602 is located directly below the discharge port of the conical hopper 2. The conical hopper 2 plays a role in dispersing the material and preventing the falling material from concentrating in a small area at the landing point of the shearing mesh 603, which would affect the subsequent shearing and dispersion effect.

[0036] The lifting and return assembly 5 located outside the shell 1 can be any one of a bucket elevator, screw conveyor or belt conveyor. Its feed end is connected to the lower end of the second chamber 102, and its discharge end is connected to the top of the shell 1, so that the dispersed material is returned to the first chamber 101 for remixing.

[0037] The bottom of the second chamber 102 is provided with a discharge port 9. It should be noted that this device can be installed as a whole on the frame, or several support feet can be symmetrically arranged at the bottom of the shell 1 so that the prepared iron tailings dry powder slurry can fall and be discharged through the discharge port 9.

[0038] Various materials for preparing iron tailings dry mortar are added to the first chamber 101 in a specific ratio. The entire mixing process is as follows: the various materials are stirred and mixed by the stirring component 3, and the materials continuously fall into the second chamber 102 through the discharge port of the conical hopper 2. The falling materials are dispersed by the dispersing component 6 to eliminate agglomeration and agglomeration tendency. Then, the dispersed materials are returned to the first chamber 101 by the lifting return component 5. The above actions are repeated for a certain period of time to complete the mixing, which effectively solves the problem of agglomeration when various materials are mixed to prepare iron tailings dry mortar, and ensures the quality of the produced iron tailings dry mortar.

[0039] Example 2

[0040] like Figure 3 , Figure 4 As shown, based on Embodiment 1, the lifting and return assembly 5 in this embodiment is a screw conveyor, including a cylinder 501 on the housing 1, a screw auger 502 in the cylinder 501, and a drive component 503 for driving the screw auger 502 to rotate. The drive component 503 is a servo motor. The bottom of the second chamber 102 is inclined. The lower end of the cylinder 501 is connected to the lower side of the bottom of the second chamber 102, and its upper end is connected to the first chamber 101. A second valve 10 is provided at the connection between the cylinder 501 and the second chamber 102. The discharge port 9 is located on the lower side of the bottom of the second chamber 102, and a third valve 11 is provided at the discharge port 9. After being dispersed by the dispersion assembly 6, the material enters the cylinder 501. The screw auger 502 is driven to rotate by the drive component 503 to transport the material back to the first chamber 101.

[0041] The first valve 7, the second valve 10, and the third valve 11 are all automatically controlled valves (preferably electric valves). After all the materials for preparing iron tailings dry mortar are fed into the first chamber 101, the first valve 7 is opened, and the drive unit 503 is started to work at the same time to prevent the materials from accumulating in the second chamber 102. During the mixing operation, the second valve 10 is in the open state and the third valve 11 is in the closed state. After the mixing is completed, the second valve 10 is closed and the third valve 11 is opened, and the mixed material (i.e., iron tailings dry mortar) is discharged through the discharge port 9.

[0042] Example 3

[0043] like Figures 5-7As shown, based on any of the above embodiments, this embodiment provides a driving component for realizing the reciprocating up and down movement of the frame 601. The driving component includes a slide groove 604 provided on the wall of the housing 1, a slider 605 slidably provided on the slide groove 604, and a wheel 608 rotatably provided on the housing 1. The slider 605 is fixedly connected to the frame 601. The housing 1 is also provided with a boss 606. A compression spring 607 is provided between the boss 606 and the slider 605. The wheel 608 is provided with at least one arc-shaped block 609 that can contact and abut against the slider 605 to drive it to slide a certain distance away from the wheel 608.

[0044] The rotation of the wheel 608 drives the arc block 609 to circulate and contact with the slider 605, causing it to slide a certain distance away from the wheel 608. When the arc block 609 moves to the point of separating from the slider 605, the slider 605 is reset under the action of the compression spring 607 (plus the weight of the frame 601 and other components). This cycle is repeated, so that the frame 601 is in a state of up-and-down reciprocating motion, thereby realizing the shearing and dispersion of materials by the shearing mesh 603.

[0045] Example 4

[0046] like Figure 8 As shown, based on any of the above embodiments, the plates 610 on both sides below the discharge port of the conical hopper 2 are evenly distributed with crushing rods 611, and the crushing rods 611 on the two plates 610 are arranged opposite each other. The conical hopper 2 is provided with two limiting rods 613 corresponding to the two plates 610 respectively. The limiting rods 613 slide through the corresponding plates 610, and the radial cross section of the limiting rods 613 is non-circular (such as square, hexagonal, etc.). Support rods 612 are hinged between the two plates 610 and the frame 601. Under the action of the support rods 612, when the frame 601 moves up and down, it drives the two plates 604 to move back and forth in opposite directions at the same time, thereby realizing the crushing of agglomerated materials first (through the crushing rods 611) to ensure the subsequent shearing and dispersion effect.

[0047] Example 5

[0048] like Figure 9 As shown, based on embodiments one, two and three, a first transmission structure 12 is provided between the spiral auger 502 and the first rotating rod 301, and a second rotating rod 14 is rotatably provided on the housing 1. A second transmission structure 13 is provided between the second rotating rod 14 and the first rotating rod 301, and a third transmission structure 612 is provided between the second rotating rod 14 and the wheel 613. Preferably, the first transmission structure 12 and the second transmission structure 13 are both belt transmission structures, and the third transmission structure 612 is a bevel gear transmission structure.

[0049] During mixed operation, under the transmission action of the first transmission structure 12, the second transmission structure 13 and the third transmission structure 612, the stirring component 3, the lifting and return component 5 and the dispersing component 6 work together to perform corresponding actions, saving energy and ensuring the consistency of the actions.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mixing device for preventing caking of dry iron tailings mortar, comprising a shell (1), wherein a conical hopper (2) is provided inside the shell (1) to divide the inner cavity of the shell (1) into a first chamber (101) and a second chamber (102), wherein a stirring assembly (3) is provided inside the first chamber (101), characterized in that: The second chamber (102) is provided with a dispersion component (6) located below the conical hopper (2) for dispersing the raw materials for preparing dry iron tailings mortar; The mixing device also includes a lifting and return assembly (5), located outside the housing (1), for returning the dispersed material to the first chamber (101) for remixing.

2. The anti-caking mixing device for dry iron tailings mortar according to claim 1, characterized in that, The first chamber (101) is provided with a feeding port (4) at the top, and the second chamber (102) is provided with a discharge port (9) at the bottom.

3. The anti-caking mixing device for dry iron tailings mortar according to claim 1, characterized in that, The lifting and return assembly (5) includes a bucket elevator, a screw conveyor or a belt conveyor.

4. The anti-caking mixing device for dry iron tailings mortar according to claim 1, characterized in that, The lifting and return assembly (5) is a screw conveyor, including a cylinder (501) on the housing (1), a spiral auger (502) in the cylinder (501), and a drive unit (503) for driving the spiral auger (502) to rotate. The lower end of the cylinder (501) is connected to the second chamber (102), and its upper end is connected to the first chamber (101).

5. The anti-caking mixing device for dry iron tailings mortar according to claim 1, characterized in that, The dispersing component (6) includes a frame (601) that moves up and down, and the frame (601) has multiple layers of shearing mesh (603) from top to bottom for shearing and dispersing falling materials.

6. The anti-caking mixing device for dry iron tailings mortar according to claim 5, characterized in that, The frame (601) is provided with a conical platform (602), and the tip of the conical platform (602) is located directly below the discharge port of the conical hopper (2).

7. The anti-caking mixing device for dry iron tailings mortar according to claim 5, characterized in that, The dispersive component (6) also includes a driving component for realizing the reciprocating motion of the frame (601) up and down, the driving component including a telescopic device and a linear driver.

8. The anti-caking mixing device for dry iron tailings mortar according to claim 7, characterized in that, The driving component includes a slide groove (604) on the wall of the housing (1), a slider (605) slidably disposed on the slide groove (604), and a wheel (608) rotatably disposed on the housing (1). The slider (605) is fixedly connected to the frame (601). The housing (1) is also provided with a boss (606). A compression spring (607) is provided between the boss (606) and the slider (605). The wheel (608) is provided with at least one arc-shaped block (609) that can contact the slider (605) and push it to slide away from the wheel (608).

9. The anti-caking mixing device for dry iron tailings mortar according to claim 5, characterized in that, The conical bucket (2) has plates (610) on both sides below it. Several crushing rods (611) are staggered on the plates (610) for crushing the material discharged from the conical bucket (2). The plates (610) are slidably connected to the conical bucket (2) through limiting rods (613). Support rods (612) are hinged between the plates (610) and the frame (601).

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