Mineral powder screening and crushing integrated device

Abstract

The mineral powder screening and crushing integrated device comprises a screening assembly, a crushing assembly and a conveying assembly, the screening assembly comprises a screening box, a screening plate and a vibration exciter, the top end and the bottom end of the screening box are open, the screening plate is obliquely arranged in the screening box, and the vibration exciter is arranged on the screening box; the conveying assembly comprises a discharging conveying belt, one end of the discharging conveying belt is arranged at the bottom end of the screening box, the crushing assembly comprises a crushing box, a crushing roller and a crushing toothed plate, a communicating cylinder is arranged between the top end of the crushing box and the screening box in a communicating mode, and the connecting position of the connecting cylinder and the screening box corresponds to the lowest end position of a screening plate. A plurality of crushing rollers are rotationally arranged in the crushing box in parallel, a plurality of crushing toothed plates are connected to each crushing roller in parallel, and a first driving part used for driving the crushing rollers to rotate is arranged in the crushing box. The mineral powder screening and crushing device has the effect of improving the mineral powder screening and crushing quality.

Description

Technical Field

[0001] This application relates to the technical field of ore powder processing, and particularly relates to an integrated device for screening and crushing ore powder. Background Art

[0002] In the process of mineral processing, screening and crushing are two key processes. Traditional screening equipment such as vibrating screens can effectively separate ore powders of different particle sizes, while crushers are used to crush large particle ore powders to the required particle size. With the increasing depletion of mineral resources and the decline of ore grades, higher requirements are put forward for the efficiency and continuity of screening and crushing. At present, split equipment is generally used in the industry to complete screening and crushing operations, but this mode has problems such as large floor area of equipment, high energy consumption, and complex process flow.

[0003] Regarding the above related technologies, the inventor believes that in recent years, some enterprises have tried to integrate the screening and crushing functions. However, due to limitations in structural design and process connection, there are still technical bottlenecks such as low screening efficiency, uneven crushing, inability to evenly crush all ore powders, and difficult equipment maintenance in practical applications. In addition, in the prior art, a crushing chamber is mainly arranged below the vibrating screen, and the coarse powder directly falls into the crushing mechanism, which will cause the problem of easy blockage of the screen mesh. Summary of the Invention

[0004] In order to improve the screening and crushing quality of ore powder, this application provides an integrated device for screening and crushing ore powder.

[0005] The integrated device for screening and crushing ore powder provided by this application adopts the following technical solutions: An integrated device for screening and crushing ore powder includes a screening component, a crushing component, and a transportation component. The screening component includes a screening box, a screening plate, and a vibrator. The top and bottom of the screening box are open. The screening plate is inclined and arranged in the screening box. The vibrator is arranged on the screening box. The transportation component includes a discharge conveyor belt, and one end of the discharge conveyor belt is arranged at the bottom of the screening box. The crushing component includes a crushing box, crushing rolls, and crushing tooth plates. A connecting cylinder is communicated between the top of the crushing box and the screening box, and the connection position of the connecting cylinder and the screening box corresponds to the lowest end position of the screening plate. A plurality of crushing rolls are rotatably arranged in parallel in the crushing box, and a plurality of crushing tooth plates are connected in parallel on each crushing roll. A first driving member for driving the crushing rolls to rotate is arranged in the crushing box.

[0006] By adopting the above technical solution, the mineral powder is poured into the screening box from above for screening. The vibrator is started to drive the screening box and the screening plate to vibrate, so as to realize the preliminary screening of the mineral powder. The mineral powder with smaller particle size falls onto the lower discharge conveyor belt for discharging, and the mineral powder with larger particle size moves along the inclined screening plate and enters the crushing box through the connecting cylinder. The crushing rollers in the crushing box rotate, and the crushing tooth plates crush the mineral powder, realizing the uniform screening and crushing treatment of the mineral powder. Through the mutual cooperation of the screening component, the crushing component and the transportation component, the effect of screening and crushing the quality of the mineral powder is achieved.

[0007] Optionally, the lower side edge of the screening plate is rotatably connected to the screening box. A rotating plate is slidably connected to the bottom surface of the screening plate on the side away from its rotating side edge. A sliding block is rotatably provided on the side of the rotating plate away from the connecting cylinder. A sliding groove is vertically formed on the inner wall of the screening box, and the sliding block is slidably arranged in the sliding groove.

[0008] By adopting the above technical solution, for different screening requirements, the setting angle of the screening plate can be adjusted. When the particle size of the mineral powder to be screened is small, the sliding block is moved upward, and the rotating plate drives the top end of the screening plate to rotate upward. The screening plate with a larger inclination angle reduces the residence time of the mineral powder on it, resulting in the larger particle size mineral powder being able to roll into the crushing box for crushing faster, and only the smaller particle size mineral powder can quickly pass through the screening plate in a short time. On the contrary, when the particle size of the mineral powder to be screened is large, the sliding block is moved downward, and the rotating plate drives the top end of the screening plate to rotate downward. By adjusting the angle of the screening plate, different screening requirements are met.

[0009] Optionally, a transportation box is horizontally and communicatively arranged at the bottom surface of the crushing box. One end of the transportation box away from the crushing box is communicatively arranged with a storage tank. The top end of the storage tank is open. A transportation conveyor belt is arranged along the length direction of the transportation box. The transportation component further includes a lifting conveyor belt arranged obliquely. One end of the lifting conveyor belt is arranged in the storage tank, and the other end extends obliquely upward to the top end of the screening box. A plurality of conveyor plates are connected to the surface of the lifting conveyor belt, and the conveyor plates are arranged along the width direction of the lifting conveyor belt.

[0010] By adopting the above technical solution, the crushed mineral powder falls onto the transportation conveyor belt in the transportation box. The mineral powder falls into the storage box for temporary storage under the transportation of the transportation conveyor belt. The lifting conveyor belt operates, and the conveyor plates lift the mineral powder in the storage tank to the top end of the screening box. The crushed mineral powder is subjected to secondary screening, which helps to improve the utilization rate of the mineral powder.

[0011] Optionally, crushing shafts are provided at both opposite ends of the crushing roller. Two sliding rods are arranged in parallel in the crushing box. A plurality of sliders are slidably arranged on each sliding rod. The plurality of sliders on the same sliding rod correspond to and are rotatably connected to the crushing shafts at one end of the plurality of crushing rollers one by one. An adjusting member for adjusting the distance between the crushing rollers is provided on the crushing box.

[0012] By adopting the above technical solution, the arrangement of the sliders and the sliding rods realizes the adjustable distance between the crushing rollers. According to different requirements for crushing particle sizes, the adjusting member is used to adjust the distance between the crushing rollers, expanding the applicable range of the crushing assembly.

[0013] Optionally, the adjusting member includes extrusion wedge blocks, pushing wedge blocks, linkage rods and abutting springs. One extrusion wedge block is provided at the bottom end of each slider. Extrusion inclined surfaces are provided on both opposite sides of the extrusion wedge blocks. The linkage rods are arranged in parallel below the sliding rods. A plurality of pushing wedge blocks are slidably arranged on the linkage rods. One pushing wedge block is provided between adjacent two sliders. Pushing inclined surfaces are provided on both opposite sides of the pushing wedge blocks. One abutting spring is sleeved at both ends of the sliding rods. One end of the abutting spring is connected to the inner wall of the crushing box, and the other end is connected to the slider at the edge. The extrusion inclined surface of the extrusion wedge block is in sliding fit with the pushing inclined surface of the pushing wedge block under the action of the abutting spring. A second driving member for driving the linkage rod to move in the vertical direction is provided in the crushing box.

[0014] By adopting the above technical solution, the second driving member drives the linkage rod to move in the vertical direction. The pushing inclined surface and the extrusion inclined surface undergo relative sliding. The extrusion wedge blocks move towards each other or away from each other under the action of the pushing wedge blocks, driving the sliders and the crushing rollers to move synchronously, realizing the synchronous adjustment of the distance between the crushing rollers.

[0015] Optionally, an extrusion oil tank is provided on the inner wall of the screening box. An extrusion plate is horizontally slidably arranged in the extrusion oil tank. An extrusion rod is vertically connected to the top surface of the extrusion plate. One end of the extrusion rod penetrates through the extrusion oil tank and is slidably connected thereto. The top end of the extrusion rod is connected to the slider. A pushing oil cylinder is provided in the crushing box. The output shaft of the pushing oil cylinder extends vertically upward and is connected to the linkage rod. A first oil pipeline is connected in communication between the cylinder body of the pushing oil cylinder and the box body of the extrusion oil tank.

[0016] By adopting the above technical solution, when the particle size of the ore powder to be screened is relatively large, the rotating plate rotates downward, the sliding block moves downward and drives the extrusion rod and the extrusion plate to move downward, and the extrusion plate extrudes the hydraulic oil in the extrusion oil tank through the first oil pipeline. The hydraulic oil enters the propulsion oil cylinder, the output shaft of the propulsion oil cylinder extends and drives the linkage rod to rise, and the distance between adjacent extrusion wedges expands, realizing the adjustment of the distance between the crushing rolls, and the crushing particle size at this time also becomes larger. On the contrary, when the particle size of the ore powder to be screened is relatively small, the sliding block moves upward, the hydraulic oil enters the extrusion oil tank through the first oil pipeline, the output shaft of the propulsion oil cylinder shortens, and the distance between adjacent extrusion wedges shrinks, and the crushing particle size at this time also becomes smaller.

[0017] Optionally, a blocking assembly is arranged in the crushing box. The blocking assembly includes a blocking plate, a displacement oil cylinder and a second oil pipeline. One blocking plate is horizontally slidably connected to each of the two opposite vertical side walls of the crushing box. The side wall where the blocking plate is located is parallel to the crushing roll. One side of the blocking plate extends out of the crushing box. One displacement oil cylinder is arranged on each side wall of the crushing box where the blocking plate is arranged. The cylinder body of the displacement oil cylinder is connected to the crushing box. The output shaft of the displacement oil cylinder extends in a direction away from the crushing box and is in transmission connection with the blocking plate. One second oil pipeline is communicated and arranged between the cylinder body of each displacement oil cylinder and the box body of the extrusion oil tank.

[0018] By adopting the above technical solution, when the distance between the crushing rolls is adjusted to be small, the hydraulic oil in the displacement oil cylinder enters the extrusion oil tank through the second oil pipeline, and the blocking plate extends into the crushing box under the action of the displacement oil cylinder, blocking the gap between the edge crushing roll and the inner wall of the crushing box, and reducing the possibility that the ore powder directly falls below the crushing roll through the gap.

[0019] Optionally, an anti-blocking ball is arranged in the screening box. A connecting rope is connected to the anti-blocking ball. One end of the connecting rope far away from the anti-blocking ball is connected to the inner wall of the screening box. The anti-blocking ball is placed on the screening plate.

[0020] By adopting the above technical solution, when the screening plate vibrates, the anti-blocking ball continuously bounces on the screening plate, knocks on the screening plate, and knocks down the powder stuck in the pores of the screening plate, reducing the possibility of the screening plate being blocked.

[0021] In summary, the present application includes at least the following beneficial technical effects: 1. Through the mutual cooperation of the screening assembly, the crushing assembly and the transportation assembly, it has the effect of screening and crushing the quality of the ore powder; 2. The setting of the adjusting member realizes the synchronous adjustment of the distance between the crushing rolls, expanding the application range of the crushing device; 3. The setting of the anti-blocking ball reduces the possibility of the screening plate being blocked. Brief Description of the Drawings

[0022] Figure 1 FIG. is a schematic structural diagram of an integrated device for screening and crushing mineral powder according to an embodiment of the present application.

[0023] Figure 2 FIG. is a partial cross-sectional view showing the internal structure of the screening box according to an embodiment of the present application.

[0024] Figure 3 FIG. is a partial cross-sectional view showing the crushing assembly according to an embodiment of the present application.

[0025] Figure 4 is Figure 3 an enlarged view of part A in

[0026] Figure 5 is Figure 2 an enlarged view of part B in

[0027] Description of the reference numerals: 1, screening assembly; 101, screening box; 1011, sliding groove; 102, screening plate; 103, sliding block; 104, rotating plate; 105, vibrator; 106, anti-blocking ball; 107, connecting rope; 2, crushing assembly; 21, crushing box; 22, crushing roller; 23, crushing shaft; 24, sliding rod; 25, slider; 26, abutting spring; 3, blocking assembly; 31, blocking plate; 32, supporting rotating plate; 33, supporting spring; 34, displacement oil cylinder; 35, second oil delivery pipe; 4, transportation assembly; 41, discharge conveyor belt; 42, lifting conveyor belt; 43, transportation conveyor belt; 5, connecting cylinder; 6, transportation box; 7, storage tank; 8, dust-proof bag; 9, linkage rod; 10, moving block; 11, pushing wedge; 111, pushing inclined surface; 12, pressing wedge; 121, pressing inclined surface; 13, pressing oil tank; 14, pressing plate; 15, pressing rod; 16, first oil delivery pipe; 17, pushing oil cylinder; 18, connecting pipe. Detailed Description of the Embodiment

[0028] The following will further describe the present application in detail with reference to the attached Figures 1-5 An integrated device for screening and crushing mineral powder provided by an embodiment of the present application has an effect on the screening and crushing quality of mineral powder.

[0029] Referring to Figure 1 and Figure 2 , an integrated device for screening and crushing mineral powder includes a screening assembly 1, a crushing assembly 2, a blocking assembly 3, a transportation assembly 4, a connecting cylinder 5, a transportation box 6, and a storage tank 7.

[0030] Referring to Figure 2 and Figure 5, the screening assembly 1 includes a screening box 101, a screening plate 102, sliding blocks 103, a rotating plate 104, a vibrator 105, and anti-blocking balls 106. The screening box 101 is a vertically arranged square box, with both the top and bottom ends of the screening box 101 being open. A dust-proof bag 8 is connected to the bottom end of the screening box 101 in a communicating manner, and the bottom end of the dust-proof bag 8 is open. A connecting cylinder 5 is connected to the vertical side wall of the screening box 101 in a communicating manner. One side of the screening plate 102 is horizontally rotatably connected to the vertical side wall of the screening box 101, and the other side extends obliquely upward. The lower side edge of the screening plate 102 is correspondingly arranged with the position of the connecting cylinder 5. The bottom surface of the screening plate 102 far from its rotating side is slidably connected to the rotating plate 104, and two sliding blocks 103 are rotatably connected to the side of the rotating plate 104 far from the connecting cylinder 5.

[0031] Refer to Figure 2 and Figure 5 , two sliding grooves 1011 are vertically formed on one side of the screening box 101 close to the rotating plate 104, and the two sliding grooves 1011 correspond to the two sliding blocks 103 one by one and are slidably connected. The vibrator 105 is connected to the vertical side wall of the screening box 101. Two anti-blocking balls 106 are arranged in the screening box 101, a connecting rope 107 is threaded through the two anti-blocking balls 106, a hook 108 is arranged at the end of the connecting rope 107, a hanging ring 109 is arranged on the inner wall of the screening box 101, the hook 108 is hung with the hanging ring 109, and the anti-blocking balls 106 are placed on the top surface of the screening plate 102.

[0032] Refer to Figures 2-4 , the connecting cylinder 5 is obliquely arranged, and a number of evenly distributed rods are horizontally and parallelly connected in the connecting cylinder 5. The crushing assembly 2 includes a crushing box 21, crushing rollers 22, crushing shafts 23, sliding rods 24, sliders 25, and abutting springs 26. The top end of the crushing box 21 is connected to the bottom end of the connecting cylinder 5 in a communicating manner. Two sliding rods 24 are parallelly connected in the same horizontal plane inside the crushing box 21, and a number of sliders 25 are slidably arranged on each sliding rod 24. A number of crushing rollers 22 are parallelly arranged in the same horizontal plane inside the crushing box 21, a number of crushing tooth plates are parallelly arranged on the crushing rollers 22, and a crushing shaft 23 is coaxially connected to each end of the crushing roller 22. A number of sliders 25 on the same sliding rod 24 correspond to the crushing shafts 23 at one end of a number of crushing rollers 22 one by one and are rotatably connected. A driving source (not shown in the drawings) for driving the crushing rollers 22 to rotate is arranged in the crushing box 21. An abutting spring 26 is sleeved on each end of the sliding rod 24, one end of the abutting spring 26 is connected to the inner wall of the crushing box 21, and the other end is connected to the slider 25 located at the edge.

[0033] Refer to Figure 4, a linkage rod 9 is arranged in parallel below one of the sliding rods 24. A plurality of moving blocks 10 are slidably arranged on the linkage rod 9, and the linkage rod 9 is a square rod. Above each moving block 10, a pushing wedge block 11 is connected. On opposite sides of the pushing wedge block 11, pushing inclined surfaces 111 are provided. One pushing wedge block 11 is arranged between every two adjacent sliding blocks 25, and a pressing wedge block 12 is connected to the bottom surface of each sliding block 25 corresponding to the sliding rod 24. On opposite sides of the pressing wedge block 12, pressing inclined surfaces 121 are provided, and the pressing inclined surfaces 121 correspond to the pushing inclined surfaces 111 in shape. Under the action of the abutting spring 26, the pressing inclined surfaces 121 are slidably attached to the corresponding pushing inclined surfaces 111.

[0034] Referring to Figure 4 and Figure 5 , an extrusion oil tank 13 is connected to the inner wall of the screening box 101. An extrusion plate 14 is horizontally slidably arranged in the extrusion oil tank 13, and the extrusion oil tank 13 is arranged below the screening plate 102. A vertical extrusion rod 15 is connected to one of the sliding blocks 103. The bottom end of the extrusion rod 15 extends into the extrusion oil tank 13 and is connected to the top surface of the extrusion plate 14. The bottom end of the extrusion oil tank 13 is connected and communicated with a first oil pipeline 16. Two pushing oil cylinders 17 are vertically arranged in the crushing box 21. The output shafts of the pushing oil cylinders 17 extend vertically upward and are connected to the end of the linkage rod. A communicating pipe 18 is connected and communicated between the bottom ends of the cylinder bodies of the two pushing oil cylinders 17. The end of the first oil pipeline 16 far away from the extrusion oil tank 13 is connected and communicated with the communicating pipe 18.

[0035] Referring to Figure 1 , Figure 3 and Figure 4 , a blocking assembly 3 is arranged on the crushing box 21. The blocking assembly 3 includes a blocking plate 31, a supporting rotating plate 32, a supporting spring 33, a displacement oil cylinder 34 and a second oil pipeline 35. One blocking plate 31 is horizontally slidably penetrated through each of the opposite two vertical side walls of the crushing box 21. The inner wall of the crushing box 21 provided with the blocking plate 31 is parallel to the crushing roller 22, and the blocking plate 31 is arranged above the crushing roller 22. One supporting rotating plate 32 is rotatably arranged on the side of each blocking plate 31 located in the crushing box 21. The supporting spring 33 is arranged between the bottom surface of the blocking plate 31 and the supporting rotating plate 32. In the natural state, the side of the supporting rotating plate 32 far away from the blocking plate 31 extends obliquely downward. One displacement oil cylinder 34 is arranged on each of the opposite two vertical outer side walls of the crushing box 21. The two displacement oil cylinders 34 correspond to the two blocking plates 31 one by one. The output shaft of the displacement oil cylinder 34 extends horizontally away from the crushing box 21 and is in transmission connection with the blocking plate 31. One second oil pipeline 35 is connected and communicated to the cylinder body of each displacement oil cylinder 34. The end of the second oil pipeline 35 far away from the displacement oil cylinder 34 is connected and communicated with the bottom end of the extrusion oil tank 13.

[0036] Referring toFigure 1 The bottom end of the crushing box 21 is open, and the top surface at one end in the length direction of the transport box 6 is connected and communicated with the bottom opening of the crushing box 21. One end of the transport box 6 away from the crushing box 21 is connected and communicated with the storage tank 7, and the top end of the storage tank 7 is open. The transport assembly 4 includes a discharge conveyor belt 41, a lifting conveyor belt 42, and a transport conveyor belt 43. The discharge conveyor belt 41 is horizontally arranged, and one end of the discharge conveyor belt 41 is arranged below the dust-proof bag 8. The transport conveyor belt 43 is arranged in the transport box 6 along the length direction of the transport box 6. One end of the lifting conveyor belt 42 is arranged in the storage tank 7, and the other end extends obliquely upward to the top end of the screening box 101. A plurality of conveyor plates are arranged at intervals on the lifting conveyor belt 42, and the conveyor plates are arranged along the width direction of the lifting conveyor belt 42.

[0037] Refer to Figure 1 and Figure 2 When processing the ore powder, the ore powder is put into the screening box 101 from the top end, and the vibrator 105 is started to drive the screening plate 102 and the screening box 101 to vibrate. The inclined screening plate 102 screens the ore powder, and the powder with a smaller particle size falls onto the discharge conveyor belt 41 through the dust-proof bag 8 for discharging. During the screening, the anti-blocking balls 106 continuously bounce on the screening plate 102, impact the screening plate 102, and knock down the powder stuck in the gaps of the screening plate 102, reducing the possibility of blockage of the screening plate 102.

[0038] Refer to Figure 1 and Figure 2 The powder with a larger particle size enters the crushing box 21 through the connecting cylinder 5, and the crushing roller 22 rotates to perform crushing treatment on the powder with a large particle size. The crushed powder is transported to the storage tank 7 for temporary storage under the action of the transport conveyor belt 43. The lifting conveyor belt 42 is started, and through a plurality of conveyor plates, the crushed powder is transported back to the screening box 101 for repeated screening.

[0039] Refer to Figure 2 , Figure 4 and Figure 5, when it is necessary to screen mineral powder of different particle sizes, it can be achieved by adjusting the angle of the screening plate 102. When it is necessary to screen mineral powder with small particle sizes, the sliding block 103 moves upward under the driving action of the driving source, and the rotating plate 104 slides relative to the screening plate 102. The rotating plate 104 drives the screening plate 102 to rotate upward. At this time, the inclination angle of the screening plate 102 is larger, and the residence time of the mineral powder on the screening plate 102 is shortened, resulting in larger particle size mineral powder being able to roll into the crushing box 21 faster. Only smaller particle size mineral powder can quickly pass through the screening plate 102 in a short time. When the screening plate 102 moves upward, the extrusion rod 15 and the extrusion plate 14 move upward accordingly. The hydraulic oil in the two propulsion oil cylinders 17 enters the extrusion oil tank 13 through the connecting pipe 18 and the first oil pipeline 16. The linkage rod 9 and the propulsion wedge 11 move downward. The propulsion inclined surface 111 of the propulsion wedge 11 slides relative to the extrusion inclined surface 121 of the extrusion wedge 12. The slider 25 slides on the slide rod 24, and the distance between adjacent two sliders 25 is reduced under the action of the abutting spring 26, realizing the reduction of the distance between the crushing rollers 22, resulting in the reduction of the crushing particle size to meet the screening requirements.

[0040] Refer to Figure 2 and Figure 4 , at the same time, the hydraulic oil in the displacement oil cylinder 34 is pumped into the extrusion oil tank 13 through the second oil pipeline 35. One side of the blocking plate 31 moves towards the direction of extending into the crushing box 21, blocking the gap between the edge crushing roller 22 and the inner wall of the crushing box 21, reducing the possibility of the powder directly passing through the crushing box 21 from the gap.

[0041] Refer to Figures 2-4 , when it is necessary to screen mineral powder with large particle sizes, the above-mentioned hydraulic oil flows in the opposite direction, the inclination angle of the screening plate 102 decreases, the distance between the crushing rollers 22 becomes larger, and one side of the blocking plate 31 moves towards the direction away from the crushing box 21 to meet the crushing and screening requirements of the device.

[0042] The implementation principle of a mineral powder screening and crushing integrated device in the embodiment of the present application is as follows: when processing mineral powder, the mineral powder is put into the screening box 101 from the top. The screening plate 102 screens the mineral powder, and the powder with smaller particle sizes falls onto the discharge conveyor belt 41 for discharging. The powder with larger particle sizes enters the crushing box 21 through the connecting cylinder 5, and the crushed powder is transported to the storage tank 7. The lifting conveyor belt 42 transports the powder back to the screening box 101 for screening.

[0043] When it is necessary to screen fine ore powder, the sliding block 103 moves upward. At this time, the inclination angle of the screening plate 102 is larger, and the residence time of the ore powder on the screening plate 102 is shortened, resulting in larger particle size ore powder being able to roll into the crushing box 21 faster, and only finer particle size ore powder can quickly pass through the screening plate 102 in a short time. The slider 25 slides on the slide bar 24, and the distance between adjacent two sliders 25 is reduced under the action of the abutting spring 26, realizing the reduction of the distance between the crushing rolls 22, resulting in the reduction of the crushing particle size. At the same time, one side of the baffle plate 31 moves towards the direction of extending into the crushing box 21, blocking the gap between the edge crushing roll 22 and the inner wall of the crushing box 21, reducing the possibility of the powder directly passing through the crushing box 21 from the gap.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A mineral powder screening and crushing integrated device, characterized in that: The invention comprises a screening component (1), a crushing component (2) and a transport component (4), wherein the screening component (1) comprises a screening box (101), a screening plate (102) and a vibrator (105), wherein the top and bottom ends of the screening box (101) are open, the screening plate (102) is tiltedly arranged in the screening box (101), the vibrator (105) is arranged on the screening box (101), the transport component (4) comprises a discharge conveyor belt (41), one end of the discharge conveyor belt (41) is arranged at the bottom end of the screening box (101), and the crushing component (2) comprises a screening box (101), a screening plate (102) and a vibrator (105), wherein the top and bottom ends of the screening box (101) are open, the screening plate (102) is tiltedly arranged in the screening box (101), the vibrator (105) is arranged on the screening box (101), the transport component (4) comprises a discharge conveyor belt (41), one end of the discharge conveyor belt (41) is arranged at the bottom end of the screening box (101), and the (2) comprises a crushing box (21), a crushing roller (22) and a crushing tooth plate, wherein a connecting tube (5) is arranged between the top end of the crushing box (21) and the screening box (101), and the connection position between the connecting tube and the screening box (101) corresponds to the lowest end position of the screening plate (102), a plurality of crushing rollers (22) are arranged in parallel and rotate in the crushing box (21), a plurality of crushing tooth plates are connected in parallel to each of the crushing rollers (22), and a first driving member for driving the crushing rollers (22) to rotate is arranged in the crushing box (21).

2. The integrated device for screening and crushing mineral powder according to claim 1, characterized in that: The lower side of the sieve plate (102) is rotatably connected to the sieve box (101); the bottom surface of the sieve plate (102) away from the rotating side is slidably connected to a rotating plate (104); a sliding block (103) is rotatably provided on the side of the rotating plate (104) away from the connecting tube (5); a sliding groove (1011) is provided on the inner wall of the sieve box (101) along the vertical direction, and the sliding block (103) is slidably provided in the sliding groove (1011).

3. The integrated device for screening and crushing mineral powder according to claim 2, characterized in that: The bottom surface of the crushing box (21) is horizontally connected to a transport box (6), and one end of the transport box (6) away from the crushing box (21) is connected to a material storage trough (7), and the top of the material storage trough (7) is open. A transport conveyor belt (43) is arranged in the transport box (6) along its length direction. The transport component (4) also includes an inclined lifting conveyor belt (42), one end of which is arranged in the material storage trough (7), and the other end of which is inclined and extends upward to the top of the screening box (101). The surface of the lifting conveyor belt (42) is connected to a plurality of conveying plates, and the conveying plates are arranged along the width direction of the lifting conveyor belt (42).

4. The integrated device for screening and crushing mineral powder according to claim 3, characterized in that: The crushing roller (22) is provided with a crushing shaft (23) at both opposite ends. Two sliding rods (24) are provided in parallel in the crushing box (21). A plurality of sliding blocks (25) are slidably provided on each of the sliding rods (24). The plurality of sliding blocks (25) on the same sliding rod (24) correspond to the crushing shafts (23) at one end of the plurality of crushing rollers (22) one by one and are rotatably connected. The crushing box (21) is provided with an adjusting member for adjusting the spacing between the crushing rollers (22).

5. The integrated device for screening and crushing mineral powder according to claim 4, characterized in that: The adjusting member comprises an extrusion wedge (12), a propulsion wedge (11), a linkage rod (9) and a pressing spring (26), wherein one extrusion wedge (12) is arranged at the bottom end of each slider (25), and extrusion inclined surfaces (121) are arranged on opposite sides of the extrusion wedge (12), the linkage rod (9) is arranged parallel to the bottom of the slide bar (24), a plurality of propulsion wedges (11) are slidably arranged on the linkage rod (9), one propulsion wedge (11) is arranged between two adjacent sliders (25), and the propulsion wedge (11) is arranged between two adjacent sliders (25). A propulsion slope (111) is provided on both opposite sides, and a clamping spring (26) is provided on both ends of the slide rod (24). One end of the clamping spring (26) is connected to the inner wall of the crushing box (21), and the other end is connected to the slide block (25) located at the edge. The extrusion slope (121) of the extrusion wedge block (12) slides and fits with the propulsion slope (111) of the propulsion wedge block (11) under the action of the clamping spring (26). A second driving member for driving the linkage rod (9) to move in the vertical direction is provided in the crushing box (21).

6. The integrated device for screening and crushing mineral powder according to claim 5, characterized in that: An extrusion oil box (13) is arranged on the inner wall of the screening box (101), an extrusion plate (14) is arranged in the extrusion oil box (13) for horizontal sliding, an extrusion rod (15) is vertically connected to the top surface of the extrusion plate (14), one end of the extrusion rod (15) passes through the extrusion oil box (13) and is slidably connected thereto, the top end of the extrusion rod (15) is connected to the slider (25), a propulsion oil cylinder (17) is arranged in the crushing box (21), the output shaft of the propulsion oil cylinder (17) extends vertically upward and is connected to the linkage rod (9), and a first oil delivery pipe (16) is connected between the cylinder body of the propulsion oil cylinder (17) and the box body of the extrusion oil box (13).

7. The integrated device for screening and crushing mineral powder according to claim 4, characterized in that: The crushing box (21) is provided with a blocking assembly (3), the blocking assembly (3) comprising a blocking plate (31), a displacement cylinder (34) and a second oil delivery pipe (35), one of the blocking plates (31) being horizontally slidably connected to two opposite vertical side walls of the crushing box (21), the side wall where the blocking plate (31) is located is parallel to the crushing roller (22), one side of the blocking plate (31) extends out of the crushing box (21), one of the displacement cylinders (34) is provided on the side wall of the crushing box (21) where the blocking plate (31) is provided, the cylinder body of the displacement cylinder (34) is connected to the crushing box (21), the output shaft of the displacement cylinder (34) extends in a direction away from the crushing box (21) and is transmission-connected to the blocking plate (31), and one of the second oil delivery pipes (35) is connected between the cylinder body of each displacement cylinder (34) and the box body of the extrusion oil box (13).

8. The integrated device for screening and crushing mineral powder according to claim 2, characterized in that: An anti-blocking ball (106) is provided in the screening box (101), and a connecting rope (107) is connected to the anti-blocking ball (106). One end of the connecting rope (107) away from the anti-blocking ball (106) is connected to the inner wall of the screening box (101), and the anti-blocking ball (106) is placed on the screening plate (102).

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