Multi-stage ore crushing and screening device and operation method thereof

Abstract

The invention relates to the technical field of ore crushing and screening, in particular to an ore multi-stage crushing and screening device and an operation method thereof. The multi-stage ore crushing and screening device comprises a crushing pretreatment mechanism, a secondary crushing mechanism, a fine crushing main body part, a fine crushing feeding part, a fine crushing separation block, a fine crushing rotating barrel, a fine crushing screening plate, a fine crushing frame, a plurality of fine crushing guide rods, a fine crushing sliding block, a fine crushing pressing piece, a fine crushing transmission piece and a screening mechanism. The secondary crushing mechanism is installed on one side of the crushing pretreatment mechanism, the fine crushing main body part is installed on the side, away from the crushing pretreatment mechanism, of the secondary crushing mechanism, and the fine crushing feeding part is installed on the fine crushing main body part. And therefore, the ore crushing effect is guaranteed, the crushed ore is screened, and the size uniformity degree of the crushed ore is further guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of ore crushing and screening, in particular to a multi-stage ore crushing and screening device and an operating method thereof. Background Art

[0002] Ore refers to a mineral aggregate from which useful components can be extracted or which has certain properties that can be utilized. It can be divided into metallic minerals and non-metallic minerals. After being mined in mines, the ores are processed in stages such as crushing and grinding according to their different types and then applied to different fields. In the prior art, when crushing ore, the ore needs to be transported into the crushing mechanism. The usual crushing mechanism only performs a single crushing action on the ore, so that after the ore is crushed by the crushing mechanism, there will still be ore that does not meet the crushing size, which seriously reduces the crushing effect; Therefore, there is an urgent need to redesign a new ore multi-stage crushing and screening device and its operation method to solve the above problems. Summary of the invention

[0003] The present invention provides a multi-stage ore crushing and screening device and an operating method thereof to solve the technical problems raised in the above background technology.

[0004] The present invention provides a multi-stage ore crushing and screening device and an operation method thereof, wherein the multi-stage ore crushing and screening device comprises a crushing pretreatment mechanism, a secondary crushing mechanism, a fine crushing main body, a fine crushing feeding part, a fine crushing material block, a fine crushing rotating cylinder, a fine crushing screening plate, a fine crushing unloading plate, a fine crushing frame, a plurality of fine crushing guide rods, a fine crushing sliding block, a fine crushing pressing piece, a fine crushing transmission member and a screening mechanism; the secondary crushing mechanism is installed on one side of the crushing pretreatment mechanism, the fine crushing main body is installed on the side of the secondary crushing mechanism away from the crushing pretreatment mechanism, the fine crushing feeding part is installed on the fine crushing main body, the fine crushing material block is installed in the fine crushing feeding part, and a plurality of material guide holes are opened on the fine crushing material block, the fine crushing rotating cylinder is rotatably connected to the fine crushing main body, the fine crushing screening plate is installed on one side of the fine crushing main body, and one end of the fine crushing screening plate The fine crushing rotating cylinder is extended into the fine crushing feeding plate, which is installed on the lower side of the fine crushing rotating cylinder, the fine crushing frame is installed on one side of the fine crushing main body, multiple fine crushing guide rods are installed on the fine crushing frame, the fine crushing sliding block is slidably connected to the fine crushing guide rod, the fine crushing lower pressure piece is installed on the fine crushing sliding block, and the fine crushing lower pressure piece faces the fine crushing rotating cylinder, the fine crushing transmission piece is installed on one side of the fine crushing frame, and the screening mechanism is installed on the side of the fine crushing main body away from the secondary crushing mechanism; multiple cross limit punching holes are opened on the fine crushing rotating cylinder; the fine crushing lower pressure piece includes a fine crushing lower pressure plate, multiple fine crushing impact heads, and a fine crushing connecting block, the fine crushing lower pressure plate is installed on one side of the fine crushing sliding block, multiple fine crushing impact heads are installed on the fine crushing lower pressure plate, the fine crushing connecting block is installed between the multiple fine crushing impact heads, and the fine crushing impact heads correspond to the positions of the cross limit punching holes.

[0005] Optionally, the crushing pretreatment mechanism includes a crushing pretreatment main box, a crushing pretreatment feed part, a crushing pretreatment discharge part, a crushing pretreatment drive device, a crushing pretreatment active roller, a crushing pretreatment active gear, multiple first crushing slices, a crushing pretreatment driven roller, a crushing pretreatment driven gear and multiple second crushing slices, the crushing pretreatment feed part is installed on the upper side of the crushing pretreatment main box, the crushing pretreatment discharge part is installed on the lower side of the crushing pretreatment main box, the crushing pretreatment active roller and the crushing pretreatment driven roller are both rotatably connected in the crushing pretreatment main box, the crushing pretreatment active gear is installed at one end of the crushing pretreatment active roller extending out of the crushing pretreatment main box, the crushing pretreatment driven gear is installed at one end of the crushing pretreatment driven roller extending out of the crushing pretreatment main box, and the crushing pretreatment active gear is meshed with the crushing pretreatment driven gear, the crushing pretreatment drive device is installed on the lower side of the crushing pretreatment main box, and the output end of the crushing pretreatment drive device is connected to the crushing pretreatment active roller, multiple first crushing slices are installed on the crushing pretreatment active roller, and multiple second crushing slices are installed on the crushing pretreatment driven roller.

[0006] Optionally, the first crushing slice includes a first crushing main body, multiple crushing clamping parts and multiple crushing impact blocks. The first crushing main body is installed on the crushing pretreatment active roller, the multiple crushing clamping parts are all installed on the outside of the first crushing main body, and the crushing impact block is installed at one end of the crushing clamping part; the first crushing slice and the second crushing slice have the same structure.

[0007] Optionally, the secondary crushing mechanism includes a material dividing member, a secondary crushing bracket, a first crushing box, a second crushing box, a first driving shaft, a first driving device, a second driving shaft, a second driving device, a first crushing and rolling member, a first filter screen, a second crushing and rolling member, a second filter screen, a first unloading box and a second unloading box, the secondary crushing bracket is installed on one side of the crushing pretreatment mechanism, the first crushing box and the second crushing box are both installed on the secondary crushing bracket, the material dividing member is installed on the upper side of the first crushing box and the second crushing box, the first driving shaft is rotatably connected in the first crushing box, and the first driving device is installed on the secondary crushing bracket The lower side, and the output end of the first driving device is connected to one end of the first driving shaft through the first conveyor belt; the second driving shaft is rotatably connected in the second crushing box, the second driving device is installed on the lower side of the secondary crushing support, and the output end of the second driving device is connected to one end of the second driving shaft through the second conveyor belt, the first crushing and rolling component is installed on the first driving shaft, the first filter is installed inside the first crushing box, the second crushing and rolling component is installed on the second driving shaft, the second filter is installed inside the second crushing box, the first discharge box is installed on the lower side of the first crushing box, and the second discharge box is installed on the lower side of the second crushing box.

[0008] Optionally, the first crushing and rolling component includes a first crushing block, a second crushing block, a third crushing block, and at least one crushing bar. The first crushing block, the second crushing block and the third crushing block are sequentially installed on the first driving shaft, and the crushing bar is fixedly installed on the outside of the first crushing block, the second crushing block and the third crushing block; the second crushing and rolling component has the same structure as the first crushing and rolling component.

[0009] Optionally, the material dividing component includes a material dividing body, a material dividing rotating baffle and a driving part. The material dividing body is installed on the upper side of the first crushing box and the second crushing box. A material dividing feed port is opened on the upper side of the material dividing body, and a first material dividing discharge port and a second material dividing discharge port are opened on the lower side of the material dividing body, and the first material dividing discharge port faces the first crushing box, and the second material dividing discharge port faces the second crushing box. The material dividing rotating baffle is rotatably connected in the material dividing body, and the driving part is installed on the outside of the material dividing body, and the output end of the driving part is connected to the material dividing rotating baffle.

[0010] Optionally, the driving part includes a material dividing drive shaft, a material dividing connecting part and a material dividing cylinder. The material dividing drive shaft is rotatably connected to the material dividing main body, and the outer side of the material dividing drive shaft is connected to the material dividing rotating baffle. The material dividing cylinder is installed on the outer side of the material dividing main body. One end of the material dividing connecting part is connected to one end of the material dividing drive shaft extending out of the material dividing main body, and the other end of the material dividing connecting part is connected to the output end of the material dividing cylinder, and the material dividing connecting part has an arc-shaped structure.

[0011] Optionally, the fine crushing transmission component includes a transmission main shaft, a transmission gear, a transmission eccentric wheel, a transmission protrusion, a transmission motor and a transmission rocker arm. One end of the transmission main shaft is connected to one end of the fine crushing rotating cylinder, the other end of the transmission main shaft passes through the fine crushing frame and is connected to the transmission gear, one side of the transmission eccentric wheel is meshed with the transmission gear, the transmission protrusion is installed on the transmission eccentric wheel, the transmission motor is installed on one side of the transmission eccentric wheel, and the output end of the transmission motor is connected to the transmission eccentric wheel, and one end of the transmission rocker arm is rotatably connected to the transmission protrusion; a limit rod is provided on one side of the fine crushing sliding block, and the other end of the transmission rocker arm is rotatably connected to the limit rod.

[0012] Optionally, the screening mechanism includes a screening base, multiple first screening connecting plates, multiple screening springs, a screening main body, multiple second screening connecting plates, a screening feed part, multiple screening channels, a first-level discharge box, a first-level filter and a second-level discharge box, the screening base is installed on one side of the fine crushing main body, the first screening connecting plate is installed on the screening base, the screening main body is installed on the upper side of the screening base, and the second screening connecting plate is installed on the screening main body, the first screening connecting plate and the second screening connecting plate are rotatably connected, multiple screening springs are installed between the screening base and the screening main body, the screening feed part is installed on the screening main body, multiple screening channels are arranged in the screening main body, the first-level discharge box is installed on one side of the screening main body, and the first-level filter is installed in the first-level discharge box, and the second-level discharge box is installed on the lower side of the first-level discharge box.

[0013] Optionally, the present invention also discloses an operating method of a multi-stage ore crushing and screening device, characterized in that it includes the following steps: S1, ore pre-crushing, placing the ore to be crushed and screened in a crushing pretreatment mechanism, and the crushing pretreatment mechanism performs pre-crushing on the ore; S2, ore secondary crushing, adding the ore treated by the crushing pretreatment mechanism into the secondary crushing mechanism, and the secondary crushing mechanism performs secondary crushing on the ore; S3, ore fine crushing, the ore treated by the secondary crushing mechanism enters the fine crushing feed part, and then the ore passes through the fine crushing material block and enters the fine crushing rotating cylinder, and the fine crushing lower pressure piece performs fine crushing on the ore in the fine crushing rotating cylinder; S4, ore screening, the ore after fine crushing enters the screening mechanism, and the screening mechanism performs screening on the size of the ore.

[0014] The beneficial effects of the present invention are as follows: The ore multi-stage crushing and screening device comprises a crushing pre-treatment mechanism, a secondary crushing mechanism, a fine crushing main body, a fine crushing feeding part, a fine crushing material block, a fine crushing rotating cylinder, a fine crushing screening plate, a fine crushing frame, a plurality of fine crushing guide rods, a fine crushing sliding block, a fine crushing pressing piece, a fine crushing transmission part and a screening mechanism; the secondary crushing mechanism is installed on one side of the crushing pre-treatment mechanism, the fine crushing main body is installed on the side of the secondary crushing mechanism away from the crushing pre-treatment mechanism, the fine crushing feeding part is installed on the fine crushing main body, the fine crushing material block is installed in the fine crushing feeding part, and the fine crushing A plurality of material guide holes are provided on the material block, the fine crushing rotating cylinder is rotatably connected to the fine crushing main body, the fine crushing screening plate is installed on one side of the fine crushing main body, and one end of the fine crushing screening plate extends into the fine crushing rotating cylinder, the fine crushing frame is installed on one side of the fine crushing main body, and a plurality of fine crushing guide rods are installed on the fine crushing frame, wherein the multi-stage ore crushing and screening device of the present invention realizes multi-stage crushing of ore through the mutual cooperation of various structures, thereby ensuring the effect of ore crushing, and at the same time, the crushed ore is screened, thereby further ensuring the size uniformity of the crushed ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the multi-stage ore crushing and screening device provided by the present invention; Figure 2 It is a structural schematic diagram of a crushing pretreatment mechanism of a multi-stage ore crushing and screening device provided by the present invention from a first perspective; Figure 3 It is a structural schematic diagram of a crushing pretreatment mechanism of a multi-stage ore crushing and screening device provided by the present invention from a second viewing angle; Figure 4 yes Figure 3 A partial enlarged view of the middle A area; Figure 5 It is a structural schematic diagram of the secondary crushing mechanism of the multi-stage ore crushing and screening device provided by the present invention from a first perspective; Figure 6 It is a structural schematic diagram of the secondary crushing mechanism of the multi-stage ore crushing and screening device provided by the present invention from a second viewing angle; Figure 7 It is a structural schematic diagram from a third perspective of the secondary crushing mechanism of the multi-stage ore crushing and screening device provided by the present invention; Figure 8is a structural schematic diagram of the secondary crushing mechanism of the multi-stage ore crushing and screening device provided by the present invention from a fourth viewing angle; Fig. 9 yes Figure 8 A partial enlarged view of the middle B area; Fig.10 It is a structural schematic diagram of a material dividing component of a multi-stage ore crushing and screening device provided by the present invention from a first perspective; Fig.11 It is a structural schematic diagram of a material dividing member of the multi-stage ore crushing and screening device provided by the present invention from a second viewing angle; Fig.12 It is a schematic structural diagram of the driving part of the multi-stage ore crushing and screening device provided by the present invention; Fig.13 It is a structural schematic diagram of the first perspective of the fine crushing main body of the multi-stage ore crushing and screening device provided by the present invention; Fig.14 yes Fig.13 A partial enlarged view of the middle C area; Fig.15 It is a structural schematic diagram of the second viewing angle of the fine crushing main body of the multi-stage ore crushing and screening device provided by the present invention; Fig.16 It is a structural schematic diagram of the fine crushing and conveying member of the multi-stage ore crushing and screening device provided by the present invention; Fig.17 It is a structural schematic diagram of the screening mechanism of the multi-stage ore crushing and screening device provided by the present invention; In the figure: 1000, crushing pretreatment mechanism; 1100, crushing pretreatment main box; 1101, crushing pretreatment feeding part; 1102, crushing pretreatment discharging part; 1200, crushing pretreatment driving device; 1300, crushing pretreatment active roller; 1400, crushing pretreatment active gear; 1510, first crushing main body; 1520, crushing engaging part; 1530, crushing impact block; 1600, crushing pretreatment driven roller; 1700, crushing pretreatment driven gear; 1800, second crushing slice; 2000, secondary crushing mechanism; 2100, material dividing member; 2110, material dividing main body; 2111, material dividing inlet; 2112, first material dividing outlet; 2113, second material dividing outlet; 2120, material dividing rotating baffle; 2130, driving part; 2131, material dividing driving shaft; 2132, material dividing connecting part; 2133, material dividing cylinder; 2200, secondary crushing bracket; 2300, first crushing box; 2310, second crushing box; 2400, first drive shaft; 2410, first drive device; 2510, second drive shaft; 2520, second drive device; 2610, first crushing block; 2620, second crushing block; 2630, third crushing block; 2640, rolling bar; 2700, first filter screen; 2710, second crushing and rolling piece; 2800, second filter screen; 2900, first unloading box; 2910, second unloading box; 3100, fine crushing main body; 3110, fine crushing feeding part; 3120, fine crushing material dividing block; 3121, material guide hole; 3130, fine crushing rotating cylinder; 3131, cross limit punching hole; 3140, fine crushing screening plate; 3150, fine crushing unloading plate; 3160, fine crushing frame; 3170, fine crushing guide rod; 3180, fine crushing sliding block; 3191, fine crushing lower pressure plate; 3192, fine crushing impact head; 3193, fine crushing connecting block; 3200, fine crushing transmission parts; 3210, transmission main shaft; 3220, transmission gear; 3230, transmission eccentric wheel; 3240, transmission protrusion; 3250, transmission motor; 3260, transmission swing rod; 4000, screening mechanism; 4100, screening base; 4200, first screening connection plate; 4300, screening spring; 4400, screening body; 4500, second screening connection plate; 4600, screening feed part; 4700, screening channel; 4800, primary discharge box; 4810, primary filter screen; 4900, secondary discharge box. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. It will be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] See also Figures 1 to 17 The multi-stage ore crushing and screening device of the present invention comprises a crushing pre-processing mechanism 1000, a secondary crushing mechanism 2000, a fine crushing main body 3100, a fine crushing feeding part 3110, a fine crushing material block 3120, a fine crushing rotating cylinder 3130, a fine crushing screening plate 3140, a fine crushing unloading plate 3150, a fine crushing frame 3160, a plurality of fine crushing guide rods 3170, a fine crushing sliding block 3180, a fine crushing pressing member, a fine crushing transmission member 3200 and a screening mechanism 4000; the secondary crushing mechanism 2000 is installed on one side of the crushing pre-processing mechanism 1000. The fine crushing body 3100 is installed on the side of the secondary crushing mechanism 2000 away from the crushing pretreatment mechanism 1000, the fine crushing feeding part 3110 is installed on the fine crushing body 3100, the fine crushing material dividing block 3120 is installed in the fine crushing feeding part 3110, and a plurality of material guide holes 3121 are opened on the fine crushing material dividing block 3120, the fine crushing rotating cylinder 3130 is rotatably connected to the fine crushing body 3100, the fine crushing screening plate 3140 is installed on one side of the fine crushing body 3100, and one end of the fine crushing screening plate 3140 extends into the fine crushing rotating cylinder 3130. 130, the fine crushing unloading plate 3150 is installed at the lower side of the fine crushing rotating cylinder 3130, the fine crushing frame 3160 is installed at one side of the fine crushing main body 3100, a plurality of fine crushing guide rods 3170 are installed on the fine crushing frame 3160, the fine crushing sliding block 3180 is slidably connected to the fine crushing guide rod 3170, the fine crushing lower pressure piece is installed on the fine crushing sliding block 3180, and the fine crushing lower pressure piece faces the fine crushing rotating cylinder 3130, the fine crushing transmission member 3200 is installed at one side of the fine crushing frame 3160, and the screening mechanism 4000 is installed at the fine crushing main body 3100 away from One side of the secondary crushing mechanism 2000; a plurality of cross-limiting punching holes 3131 are provided on the fine crushing rotating cylinder 3130; the fine crushing pressing piece includes a fine crushing pressing plate 3191, a plurality of fine crushing impact heads 3192, and a fine crushing connecting block 3193, the fine crushing pressing plate 3191 is installed on one side of the fine crushing sliding block 3180, a plurality of fine crushing impact heads 3192 are installed on the fine crushing pressing plate 3191, the fine crushing connecting block 3193 is installed between the plurality of fine crushing impact heads 3192, and the fine crushing impact heads 3192 correspond to the cross-limiting punching holes 3131 in position; Among them, when the user needs to use the ore multi-stage crushing and screening device of the present invention to process the ore, first, the user adds the ore to be crushed into the crushing pretreatment mechanism 1000, and the crushing pretreatment mechanism 1000 performs a preliminary crushing action on the ore to facilitate the subsequent process of processing the ore, and then, the ore pre-crushed by the crushing pretreatment mechanism 1000 enters the secondary crushing mechanism 2000, and then, the secondary crushing mechanism 2000 performs a second crushing action on the ore, and then, the ore crushed by the secondary crushing mechanism 2000 enters the fine crushing feeding part 3110, and then, the ore passes through the guide hole 3121 on the fine crushing material block 3120 to enter the outside of the fine crushing main body 3100, and the position of the guide hole 3121 corresponds to the position of the cross limit punching hole 3131, so as to achieve the guiding effect on the ore; Specifically, when the ore size is small enough, as the fine crushing rotating cylinder 3130 rotates, the ore with a small enough size directly passes through the cross-limiting punching hole 3131 and enters the fine crushing screening plate 3140. The fine crushing screening plate 3140 further screens the size of the ore. The ore with a small enough size again passes through the cross-limiting punching hole 3131 on the lower side of the fine crushing rotating cylinder 3130 and falls into the fine crushing main body 3100. If the ore cannot pass through the fine crushing screening plate 3140, it is discharged into the external environment through the fine crushing screening plate 3140, so as to crush the ore that does not meet the size requirements again. More specifically, after the ore passes through the guide hole 3121, the larger ore stays in the cross limit punching hole 3131. At this time, the fine crushing transmission member 3200 enters the working state, so that the fine crushing transmission member 3200 drives the fine crushing rotating cylinder 3130 to rotate clockwise. At the same time, the fine crushing transmission member 3200 also drives the fine crushing sliding block 3180 to reciprocate in the vertical direction on the fine crushing guide rod 3170, so that the fine crushing sliding block 3180 drives the fine crushing lower pressing member to move, and then the fine crushing lower pressing member presses the cross limit punching hole 3131. The ore in the fine crushing rotating cylinder 3130 is punched to crush the ore, and then the ore with a small enough size passes through the cross-limiting punch hole 3131 and falls onto the fine crushing screening plate 3140 in the fine crushing rotating cylinder 3130. Then, when the size of the ore after being punched by the fine crushing lower pressing piece still cannot pass through the cross-limiting punch hole 3131, as the fine crushing rotating cylinder 3130 continues to rotate, the ore that cannot pass through the cross-limiting punch hole 3131 falls onto the fine crushing unloading plate 3150, and is discharged into the external environment, so as to facilitate the ore to be crushed again; Furthermore, the fine crushing pressing piece drives the fine crushing sliding block 3180 to reciprocate once, and the fine crushing rotating cylinder 3130 rotates once, so that each time the fine crushing pressing piece presses downward, the ore in the cross-limiting punching hole 3131 can be pressed and crushed; Furthermore, the fine crushing connection block 3193 is used to ensure the stability of the multiple fine crushing impact heads 3192, and the shape of the fine crushing impact head 3192 is adapted to the cross-limiting punching hole 3131, so as to ensure the fine crushing impact head 3192 has a crushing efficiency on the ore in the cross-limiting punching hole 3131; It is worth noting that the ore can be transported between the crushing pretreatment mechanism 1000, the secondary crushing mechanism 2000, the fine crushing feeding part 3110 and the screening mechanism 4000 of the present invention in a variety of ways, such as conveyor belts, manipulators or manual handling. Of course, the ore discharged from the crushing pre-treatment discharge part 1102 in the crushing pre-treatment mechanism 1000 enters the material dividing part 2100 in the secondary crushing mechanism 2000, and then the ore discharged through the first discharge box 2900 and the second discharge box 2910 enters the fine crushing feed part 3110, and then the ore discharged through the fine crushing main body 3100 enters the screening feed part 4600 of the screening mechanism 4000; At the same time, a discharge gap is left between the fine crushing main body 3100 and the fine crushing discharge plate 3150, and the bottom of the fine crushing main body 3100 can be an inclined structure, so that the ore that meets the size requirements can pass through the discharge gap and enter the screening mechanism 4000, and then the screening mechanism 4000 screens the ore again.

[0020] In this embodiment, the crushing pretreatment mechanism 1000 includes a crushing pretreatment main box 1100, a crushing pretreatment feed part 1101, a crushing pretreatment discharge part 1102, a crushing pretreatment driving device 1200, a crushing pretreatment active roller 1300, a crushing pretreatment active gear 1400, a plurality of first crushing slices, a crushing pretreatment driven roller 1600, a crushing pretreatment driven gear 1700 and a plurality of second crushing slices 1800, the crushing pretreatment feed part 1101 is installed on the upper side of the crushing pretreatment main box 1100, the crushing pretreatment discharge part 1102 is installed on the lower side of the crushing pretreatment main box 1100, and the crushing pretreatment active roller 1300 and the crushing pretreatment driven roller 1600 are both rotatably connected to the crushing pretreatment main box 1 100, a crushing pretreatment driving gear 1400 is installed at one end of the crushing pretreatment driving roller 1300 extending out of the crushing pretreatment main box 1100, a crushing pretreatment driven gear 1700 is installed at one end of the crushing pretreatment driven roller 1600 extending out of the crushing pretreatment main box 1100, and the crushing pretreatment driving gear 1400 is meshed and connected with the crushing pretreatment driven gear 1700, a crushing pretreatment driving device 1200 is installed on the lower side of the crushing pretreatment main box 1100, and the output end of the crushing pretreatment driving device 1200 is connected to the crushing pretreatment driving roller 1300, a plurality of first crushing slices are installed on the crushing pretreatment driving roller 1300, and a plurality of second crushing slices 1800 are installed on the crushing pretreatment driven roller 1600.

[0021] The crushing preprocessing main box 1100 plays a role of fixing and supporting each structure in the crushing preprocessing mechanism 1000. When the ore enters the crushing preprocessing mechanism 1000, first, the ore enters the crushing preprocessing main box 1100 through the crushing preprocessing feeding part 1101, and then the crushing preprocessing driving device 1200 enters the working state, and the crushing preprocessing driving device 1200 drives the crushing preprocessing active roller 1300 to rotate, so that the crushing preprocessing active roller 1300 drives the crushing preprocessing active gear 1400 to rotate, and then the crushing preprocessing active gear 1400 drives the crushing preprocessing driven gear 1700 to rotate, so that the crushing preprocessing driven gear 1700 drives the crushing preprocessing driven roller 1600 to rotate, and then the crushing preprocessing active roller 1300 drives a plurality of first crushing slices to rotate, and the crushing preprocessing driven roller 1600 drives a plurality of second crushing slices 1800 to rotate, so that under the action of the first crushing slices and the second crushing slices, the ore is pre-crushed; Furthermore, the plurality of first crushing slices and the plurality of second crushing slices 1800 may be arranged in a staggered manner to improve the crushing efficiency of the ore; Meanwhile, the crushing pre-processing driving device 1200 may drive the crushing pre-processing active roller 1300 in a motor plus belt driving manner.

[0022] In this embodiment, the first crushing slice includes a first crushing main body 1510, multiple crushing clamping parts 1520 and multiple crushing impact blocks 1530. The first crushing main body 1510 is installed on the crushing pretreatment active roller 1300, and the multiple crushing clamping parts 1520 are all installed on the outside of the first crushing main body 1510. The crushing impact block 1530 is installed at one end of the crushing clamping part 1520; the first crushing slice and the second crushing slice 1800 have the same structure.

[0023] The first crushing main body 1510 plays a role of fixing and supporting each structure in the first crushing slice. Under the rotation of the crushing pre-treatment active roller 1300, the multiple crushing clamping parts 1520 can crush the ore. At the same time, the crushing impact block 1530 is installed at the end of the crushing clamping part 1520. When the crushing clamping part 1520 rotates, the crushing impact block 1530 can assist the crushing clamping part 1520 to crush the ore. Meanwhile, the second crushing slice 1800 has the same structure as the first crushing slice, and therefore, the working principle of the second crushing slice 1800 is the same as the working principle of the first crushing slice.

[0024] In this embodiment, the secondary crushing mechanism 2000 includes a material dividing member 2100, a secondary crushing support 2200, a first crushing box 2300, a second crushing box 2310, a first drive shaft 2400, a first drive device 2410, a second drive shaft 2510, a second drive device 2520, a first crushing and rolling member, a first filter 2700, a second crushing and rolling member 2710, a second filter 2800, a first unloading box 2900 and a second unloading box 2910, the secondary crushing support 2200 is installed on one side of the crushing pretreatment mechanism 1000, the first crushing box 2300 and the second crushing box 2310 are both installed on the secondary crushing support 2200, the material dividing member 2100 is installed on the upper side of the first crushing box 2300 and the second crushing box 2310, the first drive shaft 2400 is rotatably connected in the first crushing box 2300, and the first drive device 2410 is rotatably connected in the first crushing box 2300. 10 is installed on the lower side of the secondary crushing support 2200, and the output end of the first driving device 2410 is connected to one end of the first driving shaft 2400 through the first conveyor belt; the second driving shaft 2510 is rotatably connected in the second crushing box 2310, the second driving device 2520 is installed on the lower side of the secondary crushing support 2200, and the output end of the second driving device 2520 is connected to one end of the second driving shaft 2510 through the second conveyor belt, the first crushing and rolling member is installed on the first driving shaft 2400, the first filter 2700 is installed inside the first crushing box 2300, the second crushing and rolling member 2710 is installed on the second driving shaft 2510, the second filter 2800 is installed inside the second crushing box 2310, the first discharge box 2900 is installed on the lower side of the first crushing box 2300, and the second discharge box 2910 is installed on the lower side of the second crushing box 2310.

[0025] The ore processed by the crushing pre-processing mechanism 1000 enters the secondary crushing mechanism 2000; Specifically, the ore first enters the material dividing member 2100, and then the material dividing member 2100 selectively feeds the ore into the first crushing box 2300 or the second crushing box 2310 according to the actual feed amount; More specifically, the secondary crushing bracket 2200 plays a role in fixing and supporting each structure in the secondary crushing assembly; When the ore enters the first crushing box 2300, the first driving device 2410 enters the working state, so that the output end of the first driving device 2410 drives the first driving shaft 2400 to rotate, so that the first driving shaft 2400 drives the first crushing and rolling member to move, and the first crushing and rolling member crushes the ore. At the same time, the first crushing and rolling member can also squeeze the crushed ore, so that the ore passes through the first filter 2700 and enters the first discharge box 2900; Further, when the ore enters the second crushing box 2310, the second driving device 2520 enters the working state, so that the output end of the second driving device 2520 drives the second driving shaft 2510 to rotate, so that the second driving shaft 2510 drives the second crushing and rolling member 2710 to move, and the second crushing and rolling member 2710 crushes the ore. At the same time, the second crushing and rolling member 2710 can also squeeze the crushed ore, so that the ore passes through the second filter 2800 and enters the second discharge box 2910; Furthermore, the driving mode of the first driving device 2410 and the second driving device 2520 can both be a motor plus belt driving mode.

[0026] In this embodiment, the first crushing and rolling component includes a first crushing block 2610, a second crushing block 2620, a third crushing block 2630, and at least one crushing bar 2640. The first crushing block 2610, the second crushing block 2620 and the third crushing block 2630 are installed in sequence on the first driving shaft 2400, and the crushing bar 2640 is fixedly installed on the outside of the first crushing block 2610, the second crushing block 2620 and the third crushing block 2630; the second crushing and rolling component 2710 has the same structure as the first crushing and rolling component.

[0027] When the first driving shaft 2400 rotates, the first driving shaft 2400 drives the first crushing block 2610, the second crushing block 2620 and the third crushing block 2630 to crush the ore in the first crushing box 2300 at the same time, and then the rolling bar 2640 pushes the crushed ore into the first filter screen 2700, thereby accelerating the feeding action after the ore is crushed, and the first filter screen 2700 can also ensure that the ore crushed into the required size passes through the first filter screen 2700 to a certain extent, thereby ensuring the effect of ore crushing to a certain extent; Furthermore, the first crushing block 2610, the second crushing block 2620 and the third crushing block 2630 may be in a triangular structure to improve the crushing effect on the ore; At the same time, the first crushing block 2610, the second crushing block 2620 and the third crushing block 2630 can be extended from one side of the rolling bar 2640, so that the rolling bar 2640 abuts against the first filter screen 2700, thereby ensuring the screening effect of the ore to a certain extent; Furthermore, the second crushing and rolling member 2710 has the same structure as the first crushing and rolling member, and therefore, the working principle of the second crushing and rolling member 2710 is the same as the working principle of the first crushing and rolling member; It is worth noting that the connection method between the rolling strip 2640 and the first crushing block 2610, the second crushing block 2620 and the third crushing block 2630 can be welding fixation or screw fixation based on the existing external technology.

[0028] In this embodiment, the material dividing component 2100 includes a material dividing body 2110, a material dividing rotating baffle 2120 and a driving part 2130. The material dividing body 2110 is installed on the upper side of the first crushing box 2300 and the second crushing box 2310. A material dividing inlet 2111 is opened on the upper side of the material dividing body 2110, and a first material dividing outlet 2112 and a second material dividing outlet 2113 are opened on the lower side of the material dividing body 2110. The first material dividing outlet 2112 faces the first crushing box 2300, and the second material dividing outlet 2113 faces the second crushing box 2310. The material dividing rotating baffle 2120 is rotatably connected in the material dividing body 2110, and the driving part 2130 is installed on the outside of the material dividing body 2110, and the output end of the driving part 2130 is connected to the material dividing rotating baffle 2120.

[0029] The material dividing body 2110 plays a role of fixing and supporting each structure in the material dividing member 2100. When ore is added into the material dividing body 2110, first, the ore enters into the material dividing body 2110 through the material dividing feed port 2111, and then the driving part 2130 drives the material dividing rotating baffle 2120 to rotate in the material dividing body 2110, so that the ore enters into the first material dividing discharge port 2112 or the second material dividing discharge port 2113, thereby achieving the purpose of dividing the ore. Specifically, the material dividing piece 2100 can selectively add material to the first crushing box 2300 and the second crushing box 2310 according to the amount of ore in the first crushing box 2300 and the second crushing box 2310, thereby avoiding the occurrence of blockage to a certain extent and ensuring the crushing efficiency of the ore.

[0030] In this embodiment, the driving part 2130 includes a material dividing drive shaft 2131, a material dividing connecting part 2132 and a material dividing cylinder 2133. The material dividing drive shaft 2131 is rotatably connected to the material dividing main body 2110, and the outer side of the material dividing drive shaft 2131 is connected to the material dividing rotating baffle 2120. The material dividing cylinder 2133 is installed on the outer side of the material dividing main body 2110. One end of the material dividing connecting part 2132 is connected to one end of the material dividing drive shaft 2131 extending out of the material dividing main body 2110, and the other end of the material dividing connecting part 2132 is connected to the output end of the material dividing cylinder 2133, and the material dividing connecting part 2132 has an arc-shaped structure.

[0031] Among them, when the driving part 2130 needs to drive the material dividing rotating baffle 2120 to rotate in the material dividing main body 2110, first, the material dividing cylinder 2133 enters the working state, so that the output end of the material dividing cylinder 2133 drives the material dividing connecting part 2132 to rotate, and then the material dividing connecting part 2132 drives the material dividing driving shaft 2131 to rotate, so that the material dividing driving shaft 2131 drives the material dividing rotating baffle 2120 to rotate in the material dividing main body 2110, and then the material dividing rotating baffle 2120 blocks the first material dividing outlet 2112 or the second material dividing outlet 2113.

[0032] In this embodiment, the fine crushing transmission member 3200 includes a transmission main shaft 3210, a transmission gear 3220, a transmission eccentric wheel 3230, a transmission protrusion 3240, a transmission motor 3250 and a transmission rocker arm 3260. One end of the transmission main shaft 3210 is connected to one end of the fine crushing rotating cylinder 3130, and the other end of the transmission main shaft 3210 passes through the fine crushing frame 3160 and is connected to the transmission gear 3220. One side of the transmission eccentric wheel 3230 is meshed and connected with the transmission gear 3220. The transmission protrusion 3240 is installed on the transmission eccentric wheel 3230. The transmission motor 3250 is installed on one side of the transmission eccentric wheel 3230, and the output end of the transmission motor 3250 is connected to the transmission eccentric wheel 3230. One end of the transmission rocker arm 3260 is rotatably connected to the transmission protrusion 3240. A limit rod is provided on one side of the fine crushing sliding block 3180, and the other end of the transmission rocker arm 3260 is rotatably connected to the limit rod.

[0033] When the fine crushing transmission member 3200 needs to drive the fine crushing sliding block 3180 and the fine crushing rotating cylinder 3130 to move simultaneously, first, the transmission motor 3250 enters the working state, so that the output end of the transmission motor 3250 drives the transmission eccentric wheel 3230 to rotate, and then the transmission eccentric wheel 3230 drives the transmission protrusion 3240 to rotate, so that the transmission protrusion 3240 drives the transmission swing rod 3260 to move, and then the transmission swing rod 3260 drives the limit rod to move, so that the limit rod drives the fine crushing sliding block 3180 to slide on the fine crushing guide rod 3170; It is worth noting that the limit rod is a conventional rod-shaped structure; Then, only part of the rack is provided on the outer side of the transmission eccentric wheel 3230. Therefore, when the side of the transmission eccentric wheel 3230 provided with the rack is meshed with the transmission gear 3220, the part of the rack on the transmission eccentric wheel 3230 drives the transmission gear 3220 to rotate a certain angle, so that the transmission gear 3220 drives the transmission main shaft 3210 to rotate, and then the transmission main shaft 3210 drives the fine crushing rotating cylinder 3130 to rotate a certain angle; Furthermore, when the transmission eccentric wheel 3230 rotates one circle, the transmission eccentric wheel 3230 indirectly drives the fine crushing lower pressure piece to perform a reciprocating motion, so that the transmission eccentric wheel 3230 drives the transmission gear 3220 to rotate a certain angle, and then the transmission gear 3220 drives the fine crushing rotating cylinder 3130 to rotate a certain angle through the transmission main shaft 3210, so that different cross limit punching holes 3131 face the fine crushing lower pressure piece.

[0034] In this embodiment, the screening mechanism 4000 includes a screening base 4100, a plurality of first screening connection plates 4200, a plurality of screening springs 4300, a screening body 4400, a plurality of second screening connection plates 4500, a screening feed part 4600, a plurality of screening channels 4700, a primary discharge box 4800, a primary filter screen 4810 and a secondary discharge box 4900, the screening base 4100 is installed on one side of the fine crushing body 3100, the first screening connection plate 4200 is installed on the screening base 4100, the screening body 4400 is installed on the upper side of the screening base 4100, and the second screening The connecting plate 4500 is installed on the screening main body 4400, the first screening connecting plate 4200 and the second screening connecting plate 4500 are rotatably connected, a plurality of screening springs 4300 are installed between the screening base 4100 and the screening main body 4400, the screening feed part 4600 is installed on the screening main body 4400, a plurality of screening channels 4700 are arranged in the screening main body 4400, a first-level discharge box 4800 is installed on one side of the screening main body 4400, and a first-level filter screen 4810 is installed in the first-level discharge box 4800, and a second-level discharge box 4900 is installed on the lower side of the first-level discharge box 4800.

[0035] Among them, the screening base 4100 plays a role of fixing and supporting each structure in the screening mechanism 4000. When the ore enters the screening mechanism 4000 through the fine crushing main body 3100, first, the ore enters the screening feed part 4600, and then the ore enters the primary discharge box 4800 through multiple screening channels 4700. Then, the smaller ore passes through the primary filter 4810 and enters the secondary discharge box 4900, and the larger ore continues to move in the primary discharge box 4800, thereby realizing the screening action of ores of different sizes; Further, a vibration motor may be provided at the bottom of the screening body 4400. When the ore enters the screening feed part 4600, the vibration motor enters the working state, so that the vibration motor drives the screening body 4400 to vibrate, which is beneficial for the movement of the ore in the screening channel 4700. At the same time, the primary discharge box 4800 and the secondary discharge box 4900 may be arranged to be inclined to facilitate the movement of the ore in the primary discharge box 4800 and the secondary discharge box 4900. Furthermore, when the vibration motor is working, the screening body 4400 vibrates on the screening base 4100 with the support of multiple screening springs 4300, so that the screening body 4400 drives the ore to vibrate, so that the ore can enter the primary discharge box 4800 or the secondary discharge box 4900, thereby further realizing the screening action of the ore.

[0036] In this embodiment, the present invention also discloses an operation method of a multi-stage ore crushing and screening device, which is characterized in that it includes the following steps: S1, ore pre-crushing, placing the ore to be crushed and screened in the crushing pretreatment mechanism 1000, and the crushing pretreatment mechanism 1000 performs pre-crushing on the ore; S2, ore secondary crushing, adding the ore processed by the crushing pretreatment mechanism 1000 into the secondary crushing mechanism 2000, and the secondary crushing mechanism 2000 performs secondary crushing on the ore; S3, ore fine crushing, the ore processed by the secondary crushing mechanism 2000 enters the fine crushing feeding part 3110, and then the ore passes through the fine crushing material block 3120 and enters the fine crushing rotating cylinder 3130, and the fine crushing lower pressure piece performs fine crushing on the ore in the fine crushing rotating cylinder 3130; S4, ore screening, the ore after fine crushing enters the screening mechanism 4000, and the screening mechanism 4000 performs screening on the size of the ore.

[0037] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-stage ore crushing and screening device, characterized in that: It comprises a crushing pre-treatment mechanism (1000), a secondary crushing mechanism (2000), a fine crushing main body (3100), a fine crushing feeding part (3110), a fine crushing material block (3120), a fine crushing rotating cylinder (3130), a fine crushing screening plate (3140), a fine crushing unloading plate (3150), a fine crushing frame (3160), a plurality of fine crushing guide rods (3170), a fine crushing sliding block (3180), a fine crushing pressing member, a fine crushing transmission member (3200) and a screening mechanism (4000); The secondary crushing mechanism (2000) is installed on one side of the crushing pretreatment mechanism (1000), the fine crushing main body (3100) is installed on the side of the secondary crushing mechanism (2000) away from the crushing pretreatment mechanism (1000), the fine crushing feeding part (3110) is installed on the fine crushing main body (3100), the fine crushing material dividing block (3120) is installed in the fine crushing feeding part (3110), and a plurality of material guide holes (3121) are provided on the fine crushing material dividing block (3120), the fine crushing rotating cylinder (3130) is rotatably connected to the fine crushing main body (3100), the fine crushing screening plate (3140) is installed on one side of the fine crushing main body (3100), and one end of the fine crushing screening plate (3140) extends into the fine crushing main body (3100). a fine crushing rotating cylinder (3130), the fine crushing blanking plate (3150) is mounted on one side of the fine crushing rotating cylinder (3130), the fine crushing frame (3160) is mounted on one side of the fine crushing main body (3100), a plurality of fine crushing guide rods (3170) are mounted on the fine crushing frame (3160), the fine crushing sliding block (3180) is slidably connected to the fine crushing guide rods (3170), the fine crushing lower pressing piece is mounted on the fine crushing sliding block (3180), and the fine crushing lower pressing piece faces the fine crushing rotating cylinder (3130), the fine crushing transmission member (3200) is mounted on one side of the fine crushing frame (3160), and the screening mechanism (4000) is mounted on a side of the fine crushing main body (3100) away from the secondary crushing mechanism (2000); The fine crushing rotating cylinder (3130) is provided with a plurality of cross-limiting punching holes (3131); The fine crushing pressing member comprises a fine crushing pressing plate (3191), a plurality of fine crushing impact heads (3192), and a fine crushing connecting block (3193); the fine crushing pressing plate (3191) is installed on one side of the fine crushing sliding block (3180); a plurality of the fine crushing impact heads (3192) are installed on the fine crushing pressing plate (3191); the fine crushing connecting block (3193) is installed between the plurality of the fine crushing impact heads (3192); and the fine crushing impact heads (3192) correspond in position to the cross limiting punching hole (3131).

2. The multi-stage ore crushing and screening device according to claim 1 is characterized in that: The crushing pretreatment mechanism (1000) comprises a crushing pretreatment main box (1100), a crushing pretreatment feeding part (1101), a crushing pretreatment discharging part (1102), a crushing pretreatment driving device (1200), a crushing pretreatment active roller (1300), a crushing pretreatment active gear (1400), a plurality of first crushing slices, a crushing pretreatment driven roller (1600), a crushing pretreatment driven gear (1700) and a plurality of second crushing slices (1800), wherein the crushing pretreatment feeding part (1101) is mounted on the upper side of the crushing pretreatment main box (1100), the crushing pretreatment discharging part (1102) is mounted on the lower side of the crushing pretreatment main box (1100), the crushing pretreatment active roller (1300) and the crushing pretreatment driven roller (1600) are both rotatably connected in the crushing pretreatment main box (1100), and the crushing The pretreatment driving gear (1400) is mounted on one end of the crushing pretreatment driving roller (1300) extending out of the crushing pretreatment main housing (1100), the crushing pretreatment driven gear (1700) is mounted on one end of the crushing pretreatment driven roller (1600) extending out of the crushing pretreatment main housing (1100), and the crushing pretreatment driving gear (1400) is meshedly connected with the crushing pretreatment driven gear (1700), the crushing pretreatment driving device (1200) is mounted on the lower side of the crushing pretreatment main housing (1100), and the output end of the crushing pretreatment driving device (1200) is connected to the crushing pretreatment driving roller (1300), a plurality of the first crushing slices are mounted on the crushing pretreatment driving roller (1300), and a plurality of the second crushing slices (1800) are mounted on the crushing pretreatment driven roller (1600).

3. The multi-stage ore crushing and screening device according to claim 2 is characterized in that: The first crushing slice comprises a first crushing main body (1510), a plurality of crushing engaging parts (1520) and a plurality of crushing impact blocks (1530); the first crushing main body (1510) is mounted on the crushing pre-treatment active roller (1300); the plurality of crushing engaging parts (1520) are all mounted on the outside of the first crushing main body (1510); and the crushing impact block (1530) is mounted on one end of the crushing engaging part (1520); The first broken slice and the second broken slice (1800) have the same structure.

4. The multi-stage ore crushing and screening device according to claim 1 is characterized in that: The secondary crushing mechanism (2000) comprises a material dividing member (2100), a secondary crushing support (2200), a first crushing box (2300), a second crushing box (2310), a first drive shaft (2400), a first drive device (2410), a second drive shaft (2510), a second drive device (2520), a first crushing and rolling member, a first filter screen (2700), a second crushing and rolling member (2710), a second filter screen (2800), a first material discharge box (2900) and a second material discharge box (2910), wherein the secondary crushing support (2200) is installed on the crushing pretreatment mechanism ( 1000), the first crushing box (2300) and the second crushing box (2310) are both installed on the secondary crushing support (2200), the material dividing member (2100) is installed on the upper side of the first crushing box (2300) and the second crushing box (2310), the first driving shaft (2400) is rotatably connected in the first crushing box (2300), the first driving device (2410) is installed on the lower side of the secondary crushing support (2200), and the output end of the first driving device (2410) is connected to one end of the first driving shaft (2400) through a first conveyor belt; The second drive shaft (2510) is rotatably connected in the second crushing box (2310), the second drive device (2520) is installed on the lower side of the secondary crushing support (2200), and the output end of the second drive device (2520) is connected to one end of the second drive shaft (2510) through a second conveyor belt, the first crushing and rolling component is installed on the first drive shaft (2400), the first filter screen (2700) is installed inside the first crushing box (2300), the second crushing and rolling component (2710) is installed on the second drive shaft (2510), the second filter screen (2800) is installed inside the second crushing box (2310), the first discharge box (2900) is installed on the lower side of the first crushing box (2300), and the second discharge box (2910) is installed on the lower side of the second crushing box (2310).

5. The multi-stage ore crushing and screening device according to claim 4 is characterized in that: The first crushing and rolling component comprises a first crushing block (2610), a second crushing block (2620), a third crushing block (2630), and at least one rolling bar (2640); the first crushing block (2610), the second crushing block (2620), and the third crushing block (2630) are sequentially mounted on the first driving shaft (2400); and the rolling bar (2640) is fixedly mounted on the outside of the first crushing block (2610), the second crushing block (2620), and the third crushing block (2630); The second crushing and rolling part (2710) has the same structure as the first crushing and rolling part.

6. The multi-stage ore crushing and screening device according to claim 4, characterized in that: The material dividing member (2100) comprises a material dividing main body (2110), a material dividing rotating baffle (2120) and a driving part (2130); the material dividing main body (2110) is installed on the upper side of the first crushing box (2300) and the second crushing box (2310); a material dividing inlet (2111) is provided on the upper side of the material dividing main body (2110); a first material dividing outlet (2112) and a second material dividing outlet (2111) are provided on the lower side of the material dividing main body (2110). 113), and the first material distribution outlet (2112) faces the first crushing box (2300), the second material distribution outlet (2113) faces the second crushing box (2310), the material distribution rotating baffle (2120) is rotatably connected in the material distribution main body (2110), the driving part (2130) is installed on the outside of the material distribution main body (2110), and the output end of the driving part (2130) is connected to the material distribution rotating baffle (2120).

7. The multi-stage ore crushing and screening device according to claim 6, characterized in that: The driving part (2130) comprises a material dividing driving shaft (2131), a material dividing connecting part (2132) and a material dividing cylinder (2133); the material dividing driving shaft (2131) is rotatably connected to the material dividing main body (2110), and the outer side of the material dividing driving shaft (2131) is connected to the material dividing rotating baffle (2120); the material dividing cylinder (2133) is installed on the outer side of the material dividing main body (2110); one end of the material dividing connecting part (2132) is connected to one end of the material dividing driving shaft (2131) extending out of the material dividing main body (2110); the other end of the material dividing connecting part (2132) is connected to the output end of the material dividing cylinder (2133); and the material dividing connecting part (2132) is in an arc-shaped structure.

8. The multi-stage ore crushing and screening device according to claim 1, characterized in that: The fine crushing transmission member (3200) comprises a transmission main shaft (3210), a transmission gear (3220), a transmission eccentric wheel (3230), a transmission protrusion (3240), a transmission motor (3250) and a transmission swing rod (3260); one end of the transmission main shaft (3210) is connected to one end of the fine crushing rotating cylinder (3130); the other end of the transmission main shaft (3210) passes through the fine crushing frame (3160) and is connected to the transmission gear (3220). , one side of the transmission eccentric wheel (3230) is meshedly connected with the transmission gear (3220), the transmission protrusion (3240) is mounted on the transmission eccentric wheel (3230), the transmission motor (3250) is mounted on one side of the transmission eccentric wheel (3230), and the output end of the transmission motor (3250) is connected to the transmission eccentric wheel (3230), and one end of the transmission swing rod (3260) is rotationally connected to the transmission protrusion (3240); A limit rod is provided on one side of the fine crushing sliding block (3180), and the other end of the transmission swing rod (3260) is rotatably connected to the limit rod.

9. The multi-stage ore crushing and screening device according to claim 1, characterized in that: The screening mechanism (4000) comprises a screening base (4100), a plurality of first screening connection plates (4200), a plurality of screening springs (4300), a screening main body (4400), a plurality of second screening connection plates (4500), a screening feed part (4600), a plurality of screening channels (4700), a primary discharge box (4800), a primary filter screen (4810) and a secondary discharge box (4900), wherein the screening base (4100) is mounted on one side of the fine crushing main body (3100), the first screening connection plates (4200) are mounted on the screening base (4100), the screening main body (4400) is mounted on the upper side of the screening base (4100), and the second screening connection plates (4500) are mounted on the upper side of the screening base (4100). On the screening main body (4400), the first screening connection plate (4200) and the second screening connection plate (4500) are rotatably connected, a plurality of screening springs (4300) are installed between the screening base (4100) and the screening main body (4400), the screening feed part (4600) is installed on the screening main body (4400), a plurality of screening channels (4700) are arranged in the screening main body (4400), the first-level discharge box (4800) is installed on one side of the screening main body (4400), and the first-level filter screen (4810) is installed in the first-level discharge box (4800), and the second-level discharge box (4900) is installed on the lower side of the first-level discharge box (4800).

10. An operating method of the multi-stage ore crushing and screening device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, pre-crushing of ore, placing the ore to be crushed and screened in the crushing pre-treatment mechanism (1000), and the crushing pre-treatment mechanism (1000) performs a pre-crushing action on the ore; S2, secondary crushing of the ore, adding the ore processed by the crushing pre-processing mechanism (1000) into the secondary crushing mechanism (2000), and the secondary crushing mechanism (2000) performs secondary crushing on the ore; S3, fine crushing of ore, the ore processed by the secondary crushing mechanism (2000) enters the fine crushing feeding part (3110), then passes through the fine crushing material dividing block (3120) and enters the fine crushing rotating cylinder (3130), and the fine crushing lower pressing piece performs fine crushing action on the ore in the fine crushing rotating cylinder (3130); S4, ore screening, the ore after fine crushing enters the screening mechanism (4000), and the screening mechanism (4000) screens the size of the ore.

Images