A method and device for pre-treatment of iron tailings-based backfill materials

Abstract

A pretreatment method and device for iron tailing-based backfill materials, belonging to the technical field of pretreatment of iron tailing-based backfill materials. It is provided with a grinding and granulating part, where the traction motor in the grinding and granulating part drives the first spiral umbrella disk to rotate, and the first spiral umbrella disk drives the second spiral umbrella disk to rotate, and finally drives the inverted U-shaped supporting part connected coaxially to rotate. The raw materials are ground and granulated through the grinding cylinder. During the rotation of the inverted U-shaped supporting part, the ratchet disk is driven to rotate on the ratchet rod, and the ratchet disk and the grinding cylinder are driven to rotate, improving the efficiency of granulation. By providing a vibration selection part, the selection function is achieved. By providing a mixing and blending part, the hydraulic piston drives the grinding and granulating part to move downward, connecting the grinding and granulating part and the mixing and blending part. The traction motor drives the second rotating disk to rotate, thereby driving the connected first rotating disk to rotate, and finally driving the mixing blade to rotate, achieving the blending function and improving the operating performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of pretreatment of iron tailing-based backfill materials, and specifically relates to a method and device for pretreatment of iron tailing-based backfill materials. Background Art

[0002] The iron tailing-based backfill material is a backfill material mainly composed of iron tailings and prepared by specific technical means. This material can not only effectively utilize iron tailings and reduce their negative impact on the environment, but also solve the demand for backfill materials to a certain extent, realizing the recycling of resources and the sustainable development of the environment. The iron tailing-based backfill material is formed by mixing solidifying agents such as cement, blast furnace slag, and fine sand with iron tailing sand. The iron tailing sand is not a natural finished product when forming the iron tailing-based backfill material, but generally undergoes crushing and screening of massive iron tailing mud to meet different grading requirements.

[0003] That is to say, during the preparation of the iron tailing-based backfill material, the prior art solution with the patent publication number "CN116283146A" is often used to prepare the iron tailing-based backfill material, and iron tailing sand is used therein. The iron tailing sand is prepared by grinding massive iron tailing mud with a mill, that is, pretreated.

[0004] During the granulation process of grinding massive iron tailing mud into iron tailing sand with a mill, the granulation of massive iron tailing mud is often carried out by the rotation of a pair of opposite grinding cylinders. However, each time the massive iron tailing mud fed in by this granulation method can only be granulated once. After incomplete granulation, the granulated massive iron tailing mud needs to be sent into the mill again, making the operation very time-consuming and laborious. Summary of the Invention

[0005] To solve the defects in the prior art, the present invention proposes a method and device for pretreatment of iron tailing-based backfill materials. By providing a grinding and granulating part, the traction motor in the grinding and granulating part drives the first spiral umbrella disc to rotate, the first spiral umbrella disc drives the second spiral umbrella disc to rotate, and finally drives the coaxially connected inverted U-shaped support member to rotate. The raw materials are ground and granulated by the grinding cylinder. During the rotation of the inverted U-shaped support member, the ratchet disc is driven to rotate on the ratchet rod, and the ratchet disc and the grinding cylinder are driven to rotate, improving the granulation efficiency. By providing a vibration selection part, the selection function is achieved. By providing a mixing and stirring part, the hydraulic piston drives the grinding and granulating part to move downward, connecting the grinding and granulating part and the mixing and stirring part. The traction motor drives the second rotating disc to rotate, thereby driving the connected first rotating disc to rotate, and finally driving the stirring piece to rotate, achieving the mixing function and improving the operation performance.

[0006] The present invention adopts the following technical solutions.

[0007] A method for pre-treating iron tailings-based backfill materials, comprising:

[0008] S1, put the blocky iron tailings mud in the operation cabinet, start the traction motor, pull the screw umbrella disc 2 to rotate through the screw umbrella disc 1, and finally pull the inverted support member to rotate, and grind and granulate the blocky iron tailings mud through the grinding cylinder;

[0009] S2, during the rotation of the inverted support, the ratchet disc is pulled to rotate on the ratchet rod, and the ratchet disc and the grinding cylinder are pulled to rotate;

[0010] S3, during the rotation of the grinding drum, the rugby-shaped opening on the grinding drum changes its position, pulling the pressing bar to move back and forth, and the movement of the pressing bar pulls the connecting bar to move together, and compresses the shaking bar to shake on the stop bar, and finally pulls the edge bar and the stirring bar on the stop bar to shake, so as to disperse the iron tailings mud that has been ground into a block again;

[0011] S4, during the rotation of the inverted support, the inverted support presses the splice strip. After the inverted support is separated from the splice strip, the punch moves upward through the disc spring, and the punch hits the lower part of the vibration plate to perform vibration operation, so that the blocky iron tailings mud after granulation is discharged through the through hole;

[0012] S5, the hydraulic piston pulls the grinding and granulating part to move downward, connecting the grinding and granulating part with the blending and mixing part, and the traction motor pulls the rotating disk 2 to rotate, thereby pulling the connected rotating disk 1 to rotate, and finally pulling the mixing sheet to rotate, thus achieving the blending task.

[0013] A pre-treatment device for iron tailings-based backfill materials, comprising:

[0014] The rectangular worktable of the mill and the grinding and granulating part, the vibrating and selecting part and the blending and mixing part installed on the rectangular worktable;

[0015] A hydraulic piston is arranged on the rectangular workbench, and a hydraulic piston rod is arranged on the hydraulic piston and can move back and forth;

[0016] The grinding and granulating part includes an operating cabinet, which is connected to a hydraulic piston rod. A discharge hole is opened on the lower wall of the operating cabinet. A traction motor is arranged on the side wall of the operating cabinet. A spiral umbrella plate 1 is arranged on the rotating rod of the traction motor. A spiral umbrella plate 2 is engaged with the spiral umbrella plate 1. Two pairs of inverted shaped support members are arranged at the rotation center line of the spiral umbrella plate 2. Each inverted shaped support member is rotated with a grinding cylinder. A ratchet plate is arranged at the rotation center line of the grinding cylinder, and the lower part of the ratchet plate is engaged with the ratchet rod.

[0017] The grinding drum has a rugby-shaped opening, a pressure strip is arranged on the rugby-shaped opening, the tail of the pressure strip is connected to a connecting strip, a shaking strip is arranged upstream of the connecting strip, the rotation center line of the shaking strip is fixedly connected to the stop strip, a side strip is arranged on the stop strip, and a plurality of stirring strips are arranged below the side strip;

[0018] The vibration selection part includes a vibration plate, a through hole is opened on the vibration plate, a movably embedded strip is connected to the vibration plate, one side of the embedded strip is rounded, a disc spring is pressed on the lower part of the embedded strip, a punch is provided on the embedded strip, and the punch is in contact with the lower part of the vibration plate;

[0019] The mixing and blending part comprises a mixing cabinet, a mixing rod is connected in the mixing cabinet, a mixing sheet is arranged on the mixing rod, a rotating disk 1 is arranged on the mixing rod, and a rotating disk 2 is arranged on the rotating rod of the traction motor.

[0020] Preferably, a containing container is provided at the lower part of the rectangular workbench, the containing container and a discharge channel opened at the lower part of the blending cabinet are arranged vertically opposite to each other, and an electric control switch is provided on the discharge channel.

[0021] Preferably, a pair of cover plates are mirror-imaged on the upper part of the operation cabinet, the cover plates are tightly fitted with the opening on the upper part of the operation cabinet, and an inclined wall is opened on the lower part of the operation cabinet, and the lower part of the inclined wall and the discharge hole are connected to each other.

[0022] Preferably, a rotating bar is provided in the operating cabinet and is rotatably connected thereto, one side of the rotating bar is connected to the rotating rod of the traction motor, and the other side of the rotating bar is connected to the rotating center line of the rotating disk 2, a spiral umbrella disk 1 is provided on the rotating bar, a linkage bar is provided at the rotating center line of the spiral umbrella disk 2, and the tail of the linkage bar is fixedly connected to the inverted support member, and a mounting platform is movably provided on the side wall of the linkage bar, and the tail of the mounting platform is fused to the inner surface of the operating cabinet.

[0023] Preferably, a guide bar is provided through and fixedly connected to the inverted support member, a grinding cylinder is installed on the guide bar, a ratchet plate is installed on the other side of the guide bar, the ratchet rod is ring-shaped, the ratchet rod is welded to the vibration plate, and the side wall of the vibration plate is welded to the hollow chamber on the inner surface of the operating cabinet.

[0024] Preferably, an inner groove is opened in the grinding cylinder, a pressure strip is placed in the middle of the inner groove, a rugby-shaped opening is opened on the inner surface of the inner groove, a guide protrusion is mirrored on the pressure strip, both ends of the guide protrusion are placed on the rugby-shaped opening, a stop platform is placed upstream of the pressure strip wall, and a groove is opened on the connecting strip.

[0025] Preferably, a protective platform is provided on the side wall of the inverted support member, a slewing bearing is installed on the protective platform, a stop bar is sleeved in the slewing bearing, the lower part of the shaking bar is fixedly connected to the running bar, the running bar swims on the channel, the inner surface of the protective platform is fixedly connected to the stop platform, and a shovel piece is provided on the protective platform, which is embedded in the inner channel.

[0026] Preferably, a stop cylinder is embedded in the lower part of the splicing strip. The stop cylinder is welded to the lower part of the vibrating plate. A stop piece is provided at the lower part of the splicing strip. The stop piece is floating in the stop cylinder. A disc spring is connected between the inner surface of the stop cylinder and the lower part of the stop piece. A running piece is provided on the side wall of the stop piece. The running piece is floating in a guiding port opened on the side wall of the stop cylinder. A connecting strip is installed on the running piece, and a punch is welded on the connecting strip.

[0027] Preferably, a connecting piece is fixed in the discharge hole. A vertical piece is movably embedded in the connecting piece. A closing piece is provided at the upper part of the vertical piece. The closing piece closes at the entrance of the discharge hole. A top piece is provided at the lower part of the vertical piece. A tension spring is wound around the vertical piece. The tension spring is connected between the top piece and the connecting piece. A storage channel is opened on the cabinet for adjustment. The storage channel is arranged vertically opposite to the discharge hole. A vertical rod is provided in the storage channel. The vertical rod is arranged opposite to the top piece.

[0028] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0029] By providing a grinding and granulating part, the traction motor in the grinding and granulating part drives the first spiral bevel gear to rotate, and the first spiral bevel gear drives the second spiral bevel gear to rotate, and finally drives the inverted U-shaped supporting part connected coaxially to rotate. The raw materials are ground and granulated by the grinding cylinder. During the rotation of the inverted U-shaped supporting part, the ratchet disc is driven to rotate on the ratchet rod, and the ratchet disc and the grinding cylinder are driven to rotate. The grinding function for massive iron tailing mud is improved by the self-rotating grinding cylinder. During the rotation of the grinding cylinder, the position of the olive-shaped opening on the grinding cylinder changes, pulling the pressing bar to move back and forth. The movement of the pressing bar drives the connecting bar to move together, and presses the shaking bar to shake on the stop bar. Finally, the edge bar and the stirring bar on the stop bar are driven to shake, and the massive iron tailing mud that has been ground is dispersed again, which is suitable for subsequent grinding and granulating. And the vibrating plate can collect the massive iron tailing mud with incomplete granulation. During the continuous rotation of the grinding cylinder, the granulation operation is performed for the second time, improving the granulation efficiency. By providing a vibration selection part, during the rotation of the inverted U-shaped supporting part, the inverted U-shaped supporting part intermittently presses the splicing strip. After the inverted U-shaped supporting part is separated from the splicing strip, the punch is driven to move upward by the disc spring. The punch collides with the lower part of the vibrating plate to perform a vibration operation, and the massive iron tailing mud after granulation is discharged through the through hole, achieving the selection function. By providing a mixing and homogenizing part, the hydraulic piston drives the grinding and granulating part to move downward, connecting the grinding and granulating part and the mixing and homogenizing part. The traction motor drives the second rotating disc to rotate, thereby driving the connected first rotating disc to rotate, and finally driving the mixing piece to rotate, achieving the mixing function and improving the operation performance. Description of the Drawings

[0030] Figure 1 is a three-dimensional structure diagram of the device for pretreatment of iron tailing-based backfill materials described in the present invention;

[0031] Figure 2 It is a horizontal structural diagram of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0032] Figure 3 It is a three-dimensional structural diagram of the grinding and granulating part of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0033] Figure 4 It is a partial structural diagram of the grinding and granulating part of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0034] Figure 5 yes Figure 4 The structural diagram at B in FIG.

[0035] Figure 6 It is a partial structural diagram of the grinding and granulating part of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0036] Figure 7 It is a lower structural diagram of the grinding and granulating part of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0037] Figure 8 It is a structural diagram of the stop cylinder of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0038] Fig. 9 It is a three-dimensional structural diagram of the grinding drum of the pre-treatment device for iron tailings-based backfill materials described in the present invention;

[0039] Fig.10 It is a partial structural diagram of a grinding drum for a pre-treatment device for iron tailings-based backfill materials according to the present invention;

[0040] Fig.11 It is a three-dimensional structural diagram of a mixing cabinet for the pre-treatment device for iron tailings-based backfill materials described in the present invention. DETAILED DESCRIPTION

[0041] Iron tailings mud is produced by filter pressing and will appear in block form, but will turn into muddy paste when soaked in water. The purpose of this pre-treatment stage is divided into two aspects:

[0042] 1. Crushing and screening the blocky iron tailings mud to meet the needs of different grading. You can find some information to see the requirements for this grading.

[0043] 2. Iron tailings are prone to water loss, so in the pre-treatment stage, for the relatively dry iron tailings mud, water can be added to the crushing device for spraying during the crushing process.

[0044] The corresponding technical effects are twofold: first, it is easier to evenly crush the iron tailings mud, which is conducive to uniform mixing in the later stage; second, it reduces the dust generated during the crushing process.

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely express the technical solution of the present invention. The embodiments expressed in this application are only some embodiments of the present invention, not all embodiments. According to the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the protection scope of the present invention.

[0046] The present invention provides a method for pre-treating iron tailings-based backfill materials, comprising:

[0047] S1, put the blocky iron tailings mud in the operation cabinet 312, start the traction motor 313, pull the screw umbrella plate 2 3134 to rotate through the screw umbrella plate 1 3133, and finally pull the coaxially connected inverted support member 315 to rotate, and grind and granulate the blocky iron tailings mud through the grinding cylinder 3152;

[0048] S2, during the rotation of the inverted support 315, the ratchet plate 3154 is pulled to rotate on the ratchet rod 3155, and the ratchet plate 3154 and the grinding cylinder 3152 are pulled to rotate, and the grinding function of the blocky iron tailings mud is improved through the self-rotating grinding cylinder 3152;

[0049] S3, during the rotation of the grinding drum 3152, the rugby-shaped opening 3164 on the grinding drum 3152 changes position, pulling the pressing bar 316 to move back and forth, and the pressing bar 316 moves to pull the connecting bar 317 to move together, and compresses the shaking bar 318 to shake on the stop bar 3192, and finally pulls the edge bar 320 and the stirring bar 3202 on the stop bar 3192 to shake, so as to disperse the iron tailings mud that has been ground again, so as to be suitable for grinding and granulation again;

[0050] S4, during the rotation of the inverted support member 315, the inverted support member 315 presses the splice strip 4132 from time to time. After the inverted support member 315 is separated from the splice strip 4132, the punch 4144 is pulled upward by the disc spring 4134, and the punch 4144 hits the lower part of the vibration plate 412 to perform a vibration operation, so that the blocky iron tailings mud after granulation is discharged through the through hole 4122;

[0051] S5, the hydraulic piston 213 pulls the grinding and granulating section 311 to move downward, connecting the grinding and granulating section 311 with the blending and mixing section 511, and the traction motor 313 pulls the rotating disk 2 5142 to rotate, thereby pulling the connected rotating disk 1 514 to rotate, and finally pulling the mixing sheet 5132 to rotate, thereby achieving the blending task.

[0052] Specifically:

[0053] Open the cover plate 3122, transfer the blocky iron tailings mud into the operation cabinet 312, start the traction motor 313, and the rotating rod of the traction motor 313 pulls the rotating bar 3132 to rotate, and the rotating bar 3132 is connected to the spiral umbrella plate 1 3133, and the spiral umbrella plate 1 3133 rotates together, and the spiral umbrella plate 2 3134 is pulled to rotate by the spiral umbrella plate 1 3133, and the linkage bar 314 on the spiral umbrella plate 2 3134 rotates on the mounting table 3142, and finally the linkage bar 314 pulls the connected inverted support member 315 to rotate, and the inverted support member 315 is provided with a grinding cylinder 3152. At this time, the grinding cylinder 3152 rotates, and can grind and granulate the vibration plate 412 for multiple times.

[0054] During the rotation of the inverted support 315 and the grinding cylinder 3152, the ratchet plate 3154 is connected to the guide bar 3153 and rotates on the ratchet rod 3155, which can pull the ratchet plate 3154 to rotate, and finally pull the grinding cylinder 3152 to rotate together, so that the grinding function of the blocky iron tailings mud is improved through the spinning grinding cylinder 3152.

[0055] During the rotation of the grinding drum 3152, the rugby-shaped opening 3164 on the grinding drum 3152 changes its position, and the guiding protrusion 3162 on the pressing strip 316 moves on the rugby-shaped opening 3164, and the pressing strip 316 is stopped by the stop table 3165, and finally the pressing strip 316 can be pulled to move back and forth, and the pressing strip 316 moves to pull the connecting strip 317 to move together. During the rotation of the grinding drum 3152, the rugby-shaped opening 3164 on the grinding drum 3152 changes its position, pulling the pressing strip 316 to move back and forth, and the pressing strip 316 moves to pull the connecting strip 317 together. The connecting bar 317 moves together, and the running bar 3182 on the shaking bar 318 can move in the channel 3172, and finally pulls the shaking bar 318 to shake around the stop bar 3192, and the stop bar 3192 is fixedly connected to the edge bar 320 and the stirring bar 3202. The edge bar 320 and the stirring bar 3202 shake together to disperse the block-shaped iron tailings mud that has been ground by the grinding cylinder 3152 again, which is suitable for subsequent grinding and granulation, and the shovel blade 3166 is always embedded in the inner groove 3163, and the shovel blade 3166 can remove the block-shaped iron tailings mud embedded in the inner groove 3163.

[0056] During the rotation of the inverted support member 315, the inverted support member 315 can continuously press the splice strip 4132. After the splice strip 4132 is pressed, the traction baffle 4133 moves downward, which can press the disc spring 4134. After the inverted support member 315 is separated from the splice strip 4132, the baffle 4133 has an upward force through the disc spring 4134, and the running piece 414 moves upward together. The connecting strip 4143 on the running piece 414 pulls the punch 4144 to move upward, and the punch 4144 hits the lower part of the vibration piece 412 to perform a vibration operation. Through the vibration operation, the blocky iron tailings mud that has been granulated is efficiently discharged through the through hole 4122.

[0057] Then the on-site personnel start the hydraulic piston 213, pulling the hydraulic piston rod 2132 to move downward, and the hydraulic piston rod 2132 pulls the operating cabinet 312 to move downward, and the discharge hole 3124 at the bottom of the operating cabinet 312 and the storage channel 5124 on the blending cabinet 512 are embedded with each other, and the vertical stick 5125 in the storage channel 5124 pulls the top plate 3215 to press upward, and at this time, the tension spring 3214 on the top plate 3215 is compressed at the same time, which is convenient for subsequent restoration, and the top plate 3215 can pull the vertical plate 3212 upward, and the vertical plate 3212 separates the closing plate 321 through the discharge hole 3124. At this time, the blocky iron tailings mud in the operating cabinet 312 can be sent to the blending cabinet 512 through the discharge hole 3124.

[0058] After the operation cabinet 312 and the mixing cabinet 512 are completely engaged, the rotating disk 1 514 and the rotating disk 2 5142 are in contact with each other, and the rotating bar 3132 is pulled by the traction motor 313 to rotate, and the rotating bar 3132 pulls the rotating disk 2 5142 to rotate, and the traction contacting rotating disk 1 514 rotates, and finally the mixing rod 513 can be pulled to rotate, and the mixing rod 513 is provided with a mixing piece 5132, and the mixing piece 5132 can perform mixing operation on the raw materials in the mixing cabinet 512.

[0059] like Figures 1 to 11 As shown, the present invention provides a pre-treatment device for iron tailings-based backfill materials, comprising:

[0060] The vertically arranged rectangular worktable 212 of the mill and the grinding and granulating part 311, the vibrating and selecting part 411 and the blending and mixing part 511 arranged on the rectangular worktable;

[0061] A hydraulic piston 213 is provided on the rectangular workbench 212, and a hydraulic piston rod 2132 is provided on the hydraulic piston 213 that can move back and forth;

[0062] The grinding and granulating part 311 includes an operating cabinet 312, which is connected to the hydraulic piston rod 2132. A discharge hole 3124 is opened on the lower wall of the operating cabinet 312. A traction motor 313 is provided on the side wall of the operating cabinet 312. A spiral umbrella plate 1 3133 is installed on the rotating rod of the traction motor 313. A spiral umbrella plate 2 3134 is engaged with the spiral umbrella plate 1 3133. Two pairs of inverted support members 315 are installed at the rotation center line of the spiral umbrella plate 2 3134 (the rotation center line is the center line around which the spiral umbrella plate 2 rotates when rotating). A grinding cylinder 3152 is screwed onto each inverted support member 315. A ratchet plate 3154 is provided at the rotation center line of the grinding cylinder 3152 (the rotation center line is the center line around which the grinding cylinder rotates when rotating), and a ratchet rod 3155 is engaged with the lower part of the ratchet plate 3154.

[0063] The grinding cylinder 3152 is provided with a rugby-shaped opening 3164, on which a pressing strip 316 is provided, the tail of the pressing strip 316 is connected to a connecting strip 317, a shaking strip 318 is arranged upstream of the connecting strip 317, a rotation center line of the shaking strip 318 (the rotation center line is the center line around which the shaking strip rotates when rotating) is fixedly connected to a stop strip 3192, a side strip 320 is provided on the stop strip 3192, and a plurality of stirring strips 3202 are arranged at the lower part of the side strip 320;

[0064] The vibration selection part 411 includes a vibration plate 412, a through hole 4122 is formed on the vibration plate 412, a movably embedded splicing strip 4132 is formed on the vibration plate 412, one side of the splicing strip 4132 is rounded, a disc spring 4134 is pressed on the lower part of the splicing strip 4132, a punch 4144 is provided on the splicing strip 4132, and the punch 4144 is in contact with the lower part of the vibration plate 412;

[0065] The mixing and blending section 511 includes a mixing cabinet 512 , in which a mixing rod 513 is connected. A mixing sheet 5132 is mounted on the mixing rod 513 . A rotating disk 1 514 is disposed on the mixing rod 513 . A rotating disk 2 5142 is disposed on the rotating rod of the traction motor 313 .

[0066] like Figures 1 to 5 As shown, in a preferred but non-limiting embodiment of the present invention, a container 214 is provided at the bottom of the rectangular workbench 212, and the container 214 and the discharge channel 5122 opened at the bottom of the blending cabinet 512 are arranged vertically opposite to each other, and an electric control switch 4012 is provided on the discharge channel 5122, and a cabinet containing a PLC electrically connected to the hydraulic piston is provided on the side wall of the rectangular workbench 212. The container 214 can store the iron tailings in the blending cabinet 512. The PLC is used to control the operation of the hydraulic piston.

[0067] like Figures 1 to 6As shown, in a preferred but non-limiting embodiment of the present invention, a pair of cover plates 3122 are mirror-imaged on the upper part of the operation cabinet 312, and the cover plates 3122 are tightly fitted with the opening on the upper part of the operation cabinet 312. A tilting wall 3123 is opened on the lower part of the operation cabinet 312, and the lower part of the tilting wall 3123 is connected to the discharge hole 3124. The block iron tailings mud can be transferred into the operation cabinet 312 by opening the cover plates 3122, which is suitable for real-time addition of block iron tailings mud.

[0068] like Figures 3 to 7 As shown, in a preferred but non-restrictive embodiment of the present invention, a rotating bar 3132 is rotatably provided in the operating cabinet 312, one side of the rotating bar 3132 is connected to the rotating rod of the traction motor 313, and the other side of the rotating bar 3132 is connected to the rotating center line of the rotating disk 2 5142 (the rotating center line is the center line around which the rotating disk 2 rotates when it rotates), a spiral umbrella disk 1 3133 is provided on the rotating bar 3132, and a linkage bar 314 is provided at the rotating center line of the spiral umbrella disk 2 3134 (the rotating center line is the center line around which the spiral umbrella disk 2 rotates when it rotates), and the tail of the linkage bar 314 is fixedly connected to the inverted support member 315, and a sheet-like mounting platform 3142 is movably mounted on the side wall of the linkage bar 314, and the tail of the mounting platform 3142 is fused to the inner surface of the operating cabinet 312. The traction motor 313 is started, and the rotating rod of the traction motor 313 pulls the rotating bar 3132 to rotate. The rotating bar 3132 is connected to the screw umbrella plate 1 3133, and the screw umbrella plate 1 3133 rotates together, and the screw umbrella plate 2 3134 is pulled to rotate through the screw umbrella plate 1 3133, and the linkage bar 314 on the screw umbrella plate 2 3134 rotates on the mounting platform 3142, and finally the linkage bar 314 pulls the connected inverted support member 315 to rotate.

[0069] like Figures 5 to 10 As shown, in a preferred but non-limiting embodiment of the present invention, a guide bar 3153 is provided through the inverted support member 315 and fixedly connected, a grinding cylinder 3152 is installed on the guide bar 3153, a ratchet plate 3154 is installed on the other side of the guide bar 3153, the ratchet rod 3155 is ring-shaped, the ratchet rod 3155 is welded to the vibration plate 412, and the side wall of the vibration plate 412 is welded to the hollow chamber on the inner surface of the operation cabinet 312. During the rotation of the inverted support member 315 and the grinding cylinder 3152, the ratchet plate 3154 is connected to the guide bar 3153 and rotates on the ratchet rod 3155, which can pull the ratchet plate 3154 to rotate, and finally pull the grinding cylinder 3152 to rotate together, and the grinding function of the massive iron tailings mud is improved through the rotating grinding cylinder 3152.

[0070] like Figures 8 to 11As shown, in a preferred but non-limiting embodiment of the present invention, an inner groove 3163 is opened in the grinding cylinder 3152, a pressure strip 316 is arranged upstream of the inner groove 3163, an American football-shaped opening 3164 is opened on the inner surface of the inner groove 3163, a guide protrusion 3162 is mirrored on the pressure strip 316, both ends of the guide protrusion 3162 are arranged on the American football-shaped opening 3164, a stop platform 3165 is arranged upstream of the wall of the pressure strip 316, and a groove 3172 is opened on the connecting strip 317. During the rotation of the grinding cylinder 3152, the rugby-shaped opening 3164 on the grinding cylinder 3152 produces a change in position, and the guiding protrusion 3162 on the pressure bar 316 moves on the rugby-shaped opening 3164, and the pressure bar 316 is stopped by the stop platform 3165, and finally can pull the pressure bar 316 to move back and forth, and the movement of the pressure bar 316 pulls the connecting bar 317 to move together. During the rotation of the grinding cylinder 3152, the rugby-shaped opening 3164 on the grinding cylinder 3152 produces a change in position, pulling the pressure bar 316 to move back and forth, and the movement of the pressure bar 316 pulls the connecting bar 317 to move together.

[0071] like Figures 6 to 9 As shown, in a preferred but non-restrictive embodiment of the present invention, a protective platform 319 is provided on the side wall of the inverted support member 315, a swivel bearing 3193 is installed on the protective platform 319, a stop bar 3192 is sleeved in the swivel bearing 3193, the lower part of the rocking bar 318 is fixedly connected to the running bar 3182, the running bar 3182 floats on the channel 3172, the inner surface of the protective platform 319 is fixedly connected to the stop platform 3165, and a shovel piece 3166 is provided on the protective platform 319, and the shovel piece 3166 is embedded in the inner channel 3163. During the movement of the connecting bar 317, the running bar 3182 on the shaking bar 318 can move in the channel 3172, and finally pull the shaking bar 318 to shake around the stop bar 3192, and the stop bar 3192 is fixed with the edge bar 320 and the stirring bar 3202. The edge bar 320 and the stirring bar 3202 shake together, and the block-shaped iron tailings mud that has been ground by the grinding cylinder 3152 is then dispersed, which is suitable for further grinding and granulation. The shovel blade 3166 is always embedded in the inner groove 3163, and the shovel blade 3166 can clean the block-shaped iron tailings mud embedded in the inner groove 3163.

[0072] like Figures 6 to 9As shown, in a preferred but non-restrictive embodiment of the present invention, the lower portion of the embedding strip 4132 is embedded in the stop cylinder 413, the stop cylinder 413 is fused to the lower portion of the vibration plate 412, a baffle 4133 is provided at the lower portion of the embedding strip 4132, the baffle 4133 is floated in the stop cylinder 413, the disc spring 4134 is connected between the inner surface of the stop cylinder 413 and the lower portion of the baffle 4133, a running piece 414 is provided on the side wall of the baffle 4133, the running piece 414 is floated in a guide port 4142 opened on the side wall of the stop cylinder 413, a connecting strip 4143 is installed on the running piece 414, and a punch 4144 is fused to the connecting strip 4143. During the rotation of the inverted support member 315, the splicing strip 4132 can be compressed. After the splicing strip 4132 is compressed, the traction baffle 4133 moves downward, which can compress the disc spring 4134. After the inverted support member 315 is separated from the splicing strip 4132, the baffle 4133 is pulled upward by the disc spring 4134, and the running piece 414 moves upward together. The connecting strip 4143 on the running piece 414 pulls the punch 4144 to move upward, and the punch 4144 hits the lower part of the vibration piece 412 to perform a vibration operation, which accelerates the discharge of the granulated iron tailings through the through hole 4122.

[0073] like Figures 3 to 11 As shown, in a preferred but non-restrictive embodiment of the present invention, a pair of connecting pieces 3213 in the shape of a vertically crossed sheet are fixedly connected to the discharge hole 3124, a vertical piece 3212 is movably embedded in the connecting piece 3213, a closing piece 321 is provided on the upper part of the vertical piece 3212, and the closing piece 321 is closed at the entrance of the discharge hole 3124, a top piece 3215 is provided on the lower part of the vertical piece 3212, a tension spring 3214 is wound around the vertical piece 3212, and the tension spring 3214 is connected between the top piece 3215 and the connecting piece 3213, a storage channel 5124 is opened on the mixing cabinet 512, and the storage channel 5124 is vertically opposite to the discharge hole 3124, and a vertical stick 5125 is provided in the storage channel 5124, and the vertical stick 5125 is opposite to the top piece 3215. The discharge hole 3124 at the bottom of the operating cabinet 312 and the storage channel 5124 on the blending cabinet 512 are embedded with each other, and the vertical rod 5125 in the storage channel 5124 pulls the top plate 3215 to press upward. At this time, the tension spring 3214 on the top plate 3215 is pressed together, which is convenient for subsequent restoration. The top plate 3215 can pull the vertical plate 3212 to move upward, and the vertical plate 3212 separates the closing plate 321 through the discharge hole 3124. At this time, the blocky iron tailings mud in the operating cabinet 312 can be sent to the blending cabinet 512 through the discharge hole 3124.

[0074] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0075] Via a grinding granulation section, in which a traction motor in the grinding granulation section drives a spiral umbrella disk 1 to rotate, and the spiral umbrella disk 1 drives a spiral umbrella disk 2 to rotate, and finally drives a U-shaped support member connected coaxially to rotate. The raw materials are ground and granulated via a grinding cylinder. During the rotation of the U-shaped support member, the ratchet disk is driven to rotate on the ratchet rod, and the ratchet disk and the grinding cylinder are driven to rotate, improving the grinding function for massive iron tailings sludge via the self-rotating grinding cylinder. During the rotation of the grinding cylinder, changes occur at the positions of the oval openings on the grinding cylinder, pulling the pressing bar to move back and forth. The movement of the pressing bar drives the connecting bar to move together, and presses the shaking bar to shake on the stop bar. Finally, the edge bar and the stirring bar on the stop bar are driven to shake, re-dispersing the massive iron tailings sludge that has been ground, facilitating subsequent re-grinding and granulation. And the vibrating plate can collect the massive iron tailings sludge with incomplete granulation. During the continuous rotation of the grinding cylinder, the granulation operation is performed again, improving the efficiency of granulation. Via a vibration selection section, during the rotation of the U-shaped support member, the U-shaped support member intermittently presses the embedding bar. After the U-shaped support member is separated from the embedding bar, the punch is driven to move upward via a disc spring. The punch collides with the lower part of the vibrating plate, performing a vibration operation, and discharging the massive iron tailings sludge with completed granulation through the through hole, achieving the selection function. Via a blending and mixing section, the hydraulic piston drives the grinding granulation section to move downward, connecting the grinding granulation section and the blending and mixing section. The traction motor drives the rotating disk 2 to rotate, thereby driving the connected rotating disk 1 to rotate, and finally driving the mixing plate to rotate, achieving the blending function and improving the operating performance.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific implementation manners of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for pre-treatment of iron tailings-based backfill materials, characterized in that: include: S1, put the blocky iron tailings mud in the operation cabinet, start the traction motor, pull the screw umbrella disc 2 to rotate through the screw umbrella disc 1, and finally pull the inverted support member to rotate, and grind and granulate the blocky iron tailings mud through the grinding cylinder; S2, during the rotation of the inverted support, the ratchet disc is pulled to rotate on the ratchet rod, and the ratchet disc and the grinding cylinder are pulled to rotate; S3, during the rotation of the grinding drum, the rugby-shaped opening on the grinding drum changes its position, pulling the pressing bar to move back and forth, and the movement of the pressing bar pulls the connecting bar to move together, and compresses the shaking bar to shake on the stop bar, and finally pulls the edge bar and the stirring bar on the stop bar to shake, so as to disperse the iron tailings mud that has been ground into a block again; S4, during the rotation of the inverted support, the inverted support presses the splice strip. After the inverted support is separated from the splice strip, the punch moves upward through the disc spring, and the punch hits the lower part of the vibration plate to perform vibration operation, so that the blocky iron tailings mud after granulation is discharged through the through hole; S5, the hydraulic piston pulls the grinding and granulating part to move downward, connecting the grinding and granulating part with the blending and mixing part, and the traction motor pulls the rotating disk 2 to rotate, thereby pulling the connected rotating disk 1 to rotate, and finally pulling the mixing sheet to rotate, thus achieving the blending task.

2. A pre-treatment device for iron tailings-based backfill materials, characterized in that: include: The rectangular worktable of the mill and the grinding and granulating part, the vibrating and selecting part and the blending and mixing part installed on the rectangular worktable; A hydraulic piston is arranged on the rectangular workbench, and a hydraulic piston rod is arranged on the hydraulic piston and can move back and forth; The grinding and granulating part includes an operating cabinet, which is connected to a hydraulic piston rod. A discharge hole is opened on the lower wall of the operating cabinet. A traction motor is arranged on the side wall of the operating cabinet. A spiral umbrella plate 1 is arranged on the rotating rod of the traction motor. A spiral umbrella plate 2 is engaged with the spiral umbrella plate 1. Two pairs of inverted shaped support members are arranged at the rotation center line of the spiral umbrella plate 2. Each inverted shaped support member is rotated with a grinding cylinder. A ratchet plate is arranged at the rotation center line of the grinding cylinder, and the lower part of the ratchet plate is engaged with the ratchet rod. The grinding drum has a rugby-shaped opening, a pressure strip is arranged on the rugby-shaped opening, the tail of the pressure strip is connected to a connecting strip, a shaking strip is arranged upstream of the connecting strip, the rotation center line of the shaking strip is fixedly connected to the stop strip, a side strip is arranged on the stop strip, and a plurality of stirring strips are arranged below the side strip; The vibration selection part includes a vibration plate, a through hole is opened on the vibration plate, a movably embedded strip is connected to the vibration plate, one side of the embedded strip is rounded, a disc spring is pressed on the lower part of the embedded strip, a punch is provided on the embedded strip, and the punch is in contact with the lower part of the vibration plate; The mixing and blending part comprises a mixing cabinet, a mixing rod is connected in the mixing cabinet, a mixing sheet is arranged on the mixing rod, a rotating disk 1 is arranged on the mixing rod, and a rotating disk 2 is arranged on the rotating rod of the traction motor.

3. The pre-treatment device for iron tailings-based backfill materials according to claim 2, characterized in that: A containing container is arranged at the lower part of the rectangular workbench, and the containing container and a discharge channel opened at the lower part of the mixing cabinet are arranged vertically opposite to each other.

4. The pre-treatment device for iron tailings-based backfill materials according to claim 3, characterized in that: A pair of cover plates are mirror-imaged on the upper part of the operation cabinet, and the cover plates are tightly fitted with the opening on the upper part of the operation cabinet. An inclined wall is opened on the lower part of the operation cabinet, and the lower part of the inclined wall and the discharge hole are connected to each other.

5. The pre-treatment device for iron tailings-based backfill materials according to claim 4, characterized in that: A rotating bar is provided in the operating cabinet and is rotatably connected thereto. One side of the rotating bar is connected to the rotating rod of the traction motor, and the other side of the rotating bar is connected to the rotating center line of the rotating disk 2. A spiral umbrella disk 1 is provided on the rotating bar, and a linkage bar is provided at the rotating center line of the spiral umbrella disk 2. The tail of the linkage bar is fixedly connected to an inverted support member, and a mounting platform is movably provided on the side wall of the linkage bar, and the tail of the mounting platform is fused to the inner surface of the operating cabinet.

6. The pre-treatment device for iron tailings-based backfill materials according to claim 5, characterized in that: A guide bar is provided through and fixedly connected to the inverted support member, a grinding cylinder is arranged on the guide bar, a ratchet plate is arranged on the other side of the guide bar, the ratchet rod is ring-shaped, the ratchet rod is fused to the vibration plate, and the side wall of the vibration plate is fused to the hollow chamber on the inner surface of the operating cabinet.

7. The pre-treatment device for iron tailings-based backfill materials according to claim 6, characterized in that: An inner groove is opened in the grinding cylinder, a pressure strip is placed in the middle of the inner groove, a rugby-shaped opening is opened on the inner surface of the inner groove, a guide protrusion is mirrored on the pressure strip, both ends of the guide protrusion are placed on the rugby-shaped opening, a stop platform is placed upstream of the pressure strip wall, and a groove is opened on the connecting strip.

8. The pre-treatment device for iron tailings-based backfill materials according to claim 7, characterized in that: A protective platform is provided on the side wall of the inverted support member, a slewing bearing is installed on the protective platform, a stop bar is sleeved in the slewing bearing, the lower part of the shaking bar is fixedly connected to the running bar, the running bar is placed on the channel, the inner surface of the protective platform is fixedly connected to the stop platform, and a shovel piece is provided on the protective platform, which is embedded in the inner channel.

9. The pre-treatment device for iron tailings-based backfill materials according to claim 8, characterized in that: The lower part of the splicing strip is spliced ​​with the stop cylinder, the stop cylinder is fused to the lower part of the vibration plate, a baffle is provided at the lower part of the splicing strip, the baffle is swiveled in the stop cylinder, the disc spring is connected between the inner surface of the stop cylinder and the lower part of the baffle, a running piece is provided on the side wall of the baffle, the running piece is swiveled in the guide opening on the side wall of the stop cylinder, a splicing strip is installed on the running piece, and a punch is fused to the splicing strip.

10. The pre-treatment device for iron tailings-based backfill materials according to claim 9, characterized in that: A connecting piece is fixedly connected to the discharge hole, a vertical piece is movably embedded in the connecting piece, a closing piece is provided on the upper part of the vertical piece, the closing piece is closed at the entrance of the discharge hole, a top piece is provided on the lower part of the vertical piece, a tension spring is wound on the vertical piece, the tension spring is connected between the top piece and the connecting piece, a storage channel is opened on the mixing cabinet, the storage channel and the discharge hole are vertically opposed, a vertical stick is provided in the storage channel, and the vertical stick is opposed to the top piece.

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