Screening machine capable of continuously crushing raw materials

Abstract

The utility model provides a screening machine capable of continuously smashing raw materials, and relates to the technical field of screening machines, the screening machine capable of continuously smashing the raw materials comprises a rack, a smashing assembly is installed on the rack, the smashing assembly is used for smashing the materials, a screening structure is arranged on the rack, the screening structure is located below the smashing assembly, and the smashing assembly is used for smashing the materials. The screening structure is used for conducting multi-stage screening operation on the smashed materials, and a backflow hopper is connected to the screening structure; materials can be screened for multiple times through the screening structure, the screened materials can be crushed again through the backflow hopper and the secondary crushing assembly, and unqualified materials can be conveyed and crushed again through the crushing assembly through the cooperative arrangement of the recycling conveying belt and the material returning assembly. And unqualified materials are automatically recycled and crushed for multiple times, so that the conditions of manual collection and secondary treatment are avoided, and the material crushing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, specifically a screening machine for the continuous crushing of raw materials. Background Technology

[0002] A screening machine is a device used for screening and classifying materials. It separates particles of different sizes, shapes, or densities from materials through vibration, rotation, or airflow. In many fields of modern industrial production, such as mining, building materials, and chemicals, the crushing and screening of raw materials is a crucial and fundamental step. Traditional screening machines often have some problems when processing raw materials.

[0003] Traditional screening machines are typically designed to focus only on single-pass crushing and screening processes, lacking a mechanism for efficient recycling and re-crushing of raw materials that do not meet particle size requirements. When some raw materials do not meet the standard particle size after a single crushing, they often need to be manually collected and transported to other equipment for secondary processing. This process not only consumes a lot of manpower and time but also reduces the crushing efficiency. Therefore, a screening machine that can continuously crush raw materials is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a screening machine for the sustainable crushing of raw materials, aiming to solve the problems in the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a screening machine for the continuous crushing of raw materials, comprising:

[0006] frame:

[0007] A crushing assembly, mounted on a frame, is used to crush materials;

[0008] A screening structure is installed on the frame and is located below the crushing assembly. The screening structure is used to perform multi-stage screening of the material crushed by the crushing assembly.

[0009] A reflux hopper, connected to the screening structure, is used to collect unqualified materials after multi-stage screening.

[0010] A secondary crushing component is located below the return hopper and is mounted on the frame. The secondary crushing component is used to crush the unqualified materials collected in the return hopper.

[0011] A recycling conveyor belt is installed below the screening structure and the secondary crushing component. The recycling conveyor belt is used to recycle the material screened by the screening structure and the material crushed by the secondary crushing component.

[0012] A return material assembly is installed on one side of the frame, and the return material assembly corresponds to the end position of the recycling conveyor belt;

[0013] Multiple partition components are mounted on the frame, the partition components being used to divide the screening structure into multiple screening zones;

[0014] A dust removal structure is installed on one side of the frame, which is used to absorb and treat the dust generated during the crushing and screening process.

[0015] Preferably, the crushing component and the secondary crushing component have the same structure. Both the crushing component and the secondary crushing component include a crushing box, a crushing roller and a motor. The crushing box is connected to the frame. There are two crushing rollers, which are rotatably installed inside the crushing box. Both crushing rollers are connected to gears, and the two gears mesh with each other. The motor is installed on one side of the crushing box, and the output end of the motor is connected to the end of one crushing roller away from the gear.

[0016] Preferably, the screening structure includes a screening frame, a vibrating motor, screens, collecting hoppers, and return pipes. The screening frame is connected to the machine frame. The vibrating motor is installed on one side of the screening frame. There are multiple screens, which are interconnected and installed inside the screening frame. The screens are inclined. There are multiple collecting hoppers, which are connected to the screening frame. The number of collecting hoppers corresponds to the number of screens, and there is a one-to-one correspondence between the collecting hoppers and the screens. There are multiple return pipes, which are connected to the ends of the collecting hoppers, and there is a one-to-one correspondence between the returning pipes and the collecting hoppers. Each of the multiple return pipes is equipped with a control valve and a feeding assembly.

[0017] Preferably, the feeding assembly includes a feeding pipe and a control valve two. The feeding pipe is connected to a return pipe and is inclined. The control valve two is connected to the feeding pipe.

[0018] Preferably, the return material assembly includes a return material collection box, a lifting auger, and a return pipe. The return material collection box is located on one side of the recycling conveyor belt and corresponds to the output end of the recycling conveyor belt. The lifting auger is installed on the return material collection box, and the return pipe is installed at the end of the lifting auger. The return pipe is inclined, and its bottom end is located above the crushing assembly.

[0019] Preferably, the dust removal structure includes a dust collection hood, a dust collection fan, a dust collection box, and filter screens. The dust collection hood is connected to the top side of the frame and is located above the crushing component and the screening structure. The dust collection fan is connected to the end of the dust collection hood through a pipe. The dust collection box is located on one side of the frame and is connected to the dust collection fan through a pipe. There are multiple filter screens, and the multiple filter screens are evenly installed inside the dust collection box.

[0020] Preferably, the partition assembly includes a support plate, an electric push rod, and a partition. The support plate is installed on the top side of the frame, the electric push rod is connected to the support plate, and the partition is connected to the output end of the electric push rod.

[0021] Preferably, a plurality of material bins are provided on one side of the frame, the number of material bins corresponding to the number of feeding pipes, the bottom position of the material bins corresponding to the bottom position of the feeding pipes, and the material bins and feeding pipes are in one-to-one correspondence.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. By setting up a screening structure, materials can be screened multiple times. The screened materials can be crushed again through the return hopper and secondary crushing component. In conjunction with the recycling conveyor belt and return material component, unqualified materials can be transported and crushed again by the crushing component. Unqualified materials are automatically recycled and crushed multiple times, avoiding manual collection and secondary processing, and improving the efficiency of crushing materials.

[0024] 2. By setting up a dust removal structure, it can absorb the dust generated during the crushing and screening process, and can filter the dust, greatly preventing the dust from escaping.

[0025] 3. By setting up partition components, the screening time of materials on a screen can be increased, thereby better screening out qualified materials and making the screening effect better. Attached Figure Description

[0026] Figure 1 This is a first-view structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0028] Figure 3 This is a structural schematic diagram of the frame and its connecting components of this utility model;

[0029] Figure 4 This is a schematic diagram of the screening structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the dust removal structure of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the return material assembly of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the partition component of this utility model;

[0033] Figure 8 This is a schematic diagram of the secondary crushing component of this utility model;

[0034] Figure 9 This is a schematic diagram of the structure of the screen of this utility model.

[0035] In the diagram: 10. Frame; 20. Screening structure; 21. Return hopper; 22. Screening frame; 23. Vibrating motor; 24. Screen; 25. Collection hopper; 26. Return pipe; 27. Control valve one; 28. Discharge pipe; 29. ​​Control valve two; 30. Recycling conveyor belt; 40. Return assembly; 41. Return collection box; 42. Lifting auger; 43. Return pipe; 50. Partition assembly; 51. Support plate; 52. Electric push rod; 53. Partition plate; 60. Dust removal structure; 61. Dust hood; 62. Dust suction fan; 63. Dust collection box; 64. Filter screen; 70. Crushing box; 71. Crushing roller; 72. Gear; 73. Motor; 80. Material box. Detailed Implementation

[0036] The present invention will now be further described with reference to the accompanying drawings.

[0037] like Figures 1 to 9As shown, a screening machine for continuously crushing raw materials includes a frame 10, on which a crushing assembly is mounted for crushing materials. A screening structure 20 is also mounted on the frame 10, located below the crushing assembly, and is used for multi-stage screening of the crushed material. A return hopper 21 is connected to the screening structure 20 for collecting unqualified materials after multi-stage screening. Below the return hopper 21, a secondary crushing assembly connected to the frame 10 is located. The secondary crushing assembly has the same structure as the crushing assembly and is used to crush materials in the return hopper 21. 1. A recycling conveyor belt 30 is installed below the screening structure 20 and the secondary crushing component to collect unqualified materials. The recycling conveyor belt 30 is used to collect the materials screened by the screening structure 20 and the materials crushed by the secondary crushing component. A return material component 40 is installed on one side of the frame 10, and the return material component 40 is positioned corresponding to the end of the recycling conveyor belt 30. Multiple partition components 50 are installed on the frame 10 to divide the screening structure 20 into multiple screening areas. A dust removal structure 60 is installed on one side of the frame 10 to absorb and treat the dust generated during the crushing and screening process.

[0038] It should be noted that baffles are installed on the recycling conveyor belt 30 to prevent materials from falling off the recycling conveyor belt 30, so that all materials can be conveyed into the interior of the return material assembly 40.

[0039] like Figure 3 , Figure 4 and Figure 7 As shown, both the crushing assembly and the secondary crushing assembly include a crushing box 70. Inside the crushing box 70, two crushing rollers 71 are rotatably connected. Each crushing roller 71 is connected to a meshing gear 72. The two gears 72 are used to make the two crushing rollers 71 rotate simultaneously and in opposite directions. The input end of one crushing roller 71 is connected to a motor 73, which is used to drive one crushing roller 71 to rotate.

[0040] The material entering the crushing chamber 70 of the crushing assembly is crushed by two crushing rollers 71 and then enters the screening structure 20 for screening. The material screened by the screening structure 20 enters the return hopper 21 and is then transported to the crushing chamber 70 of the secondary crushing assembly. The material crushed by the two crushing rollers 71 on the secondary crushing assembly falls onto the recycling conveyor belt 30. The recycling conveyor belt 30 and the return material assembly transport the material back to the crushing chamber 70 of the crushing assembly for further crushing.

[0041] The screening structure 20 includes a screening frame 22, which is inclined. A vibration motor 23 is fixedly installed on one side of the screening frame 22. The vibration motor 23 is used to generate vibration force in the screening frame 22 and move the material downward. Multiple interconnected screens 24 are installed inside the screening frame 22. The screens 24 are inclined and parallel to the screening frame 22. Multiple collection hoppers 25 are fixedly installed on the bottom side of the screening frame 22. The number of collection hoppers 25 corresponds to the number of screens 24, and the positions of the collection hoppers 25 and the screens 24 correspond one-to-one. The bottom of each collection hopper 25 is fixedly connected to a return pipe 26. Each return pipe 26 is connected to a feeding assembly and a control valve 27. The feeding assembly includes a feeding pipe 28 connected to the return pipe 26. The feeding pipe 28 is inclined. The control valve 27 is located below the feeding pipe 28. Each feeding pipe 28 is equipped with a control valve 29.

[0042] The mesh diameters of the multiple sieves 24 are all different, and the mesh diameter gradually increases from top to bottom. If there are three sieves 24, they can be divided into primary sieves, secondary sieves, and tertiary sieves from top to bottom. Figure 9 As shown, during the screening process, if the particle size of the qualified material is smaller than the mesh diameter of the primary screen, the material screened on the secondary and tertiary screens will be unqualified. At this time, control valve 27 corresponding to the primary screen position is closed, and control valve 29 corresponding to the primary screen position is opened. The qualified material screened by the primary screen is then conveyed through the collection hopper 25 and return pipe 26 to the discharge pipe 28 for discharge. Meanwhile, control valve 29 corresponding to the secondary and tertiary screen positions is closed, and control valve 27 corresponding to the secondary and tertiary screen positions is opened. The unqualified material is then conveyed through the collection hopper 25 and return pipe 26 to the recycling conveyor belt 30 for subsequent return crushing. If the particle size of the qualified material is smaller than the mesh diameter of the secondary screen, then only the tertiary screen... If the screened material is unqualified, control valve 27 corresponding to the positions of the primary and secondary screens is closed, and control valve 29 corresponding to the positions of the primary and secondary screens is opened. The qualified material screened by the primary screen is then conveyed through the collection hopper 25 and return pipe 26 to the discharge pipe 28 for feeding. Similarly, the qualified material screened by the secondary screen is conveyed through the collection hopper 25 and return pipe 26 to the discharge pipe 28 for feeding. The primary and secondary screens can respectively screen out two different specifications of qualified material. Then, control valve 29 corresponding to the position of the tertiary screen is closed, and control valve 27 corresponding to the position of the tertiary screen is opened. The unqualified material is then conveyed through the collection hopper 25 and return pipe 26 to the recycling conveyor belt 30 for subsequent return crushing operations.

[0043] like Figure 6 As shown, the return material assembly 40 includes a return material collection box 41, which corresponds to the output end of the recycling conveyor belt 30. The top side of the return material collection box 41 is located below the conveying surface of the recycling conveyor belt 30, so that the recycling conveyor belt 30 can transport materials into the interior of the return material collection box 41. A lifting auger 42 is connected to the return material collection box 41, which is used to lift the materials inside the return material collection box 41 to a higher position. A return pipe 43 is connected to the lifting auger 42, which is inclined and the bottom end of the return pipe 43 is located above the crushing assembly.

[0044] The recycled material conveyed by the recycling conveyor belt 30 will enter the interior of the return collection box 41. During this process, the material inside the return collection box 41 will be lifted to a high position by the lifting auger 42. When the material is lifted to the position corresponding to the return pipe 43, the material will enter the return pipe 43 and be transported back to the interior of the crushing component under the action of the return pipe 43.

[0045] It should be noted that the bottom of the return material collection box 41 is funnel-shaped, which allows the material to gather at the bottom of the return material collection box 41. The lifting auger 42 is set vertically, and the bottom of the lifting auger 42 is located at the bottom of the return material collection box 41, which makes it easier for the lifting auger 42 to lift the material located at the bottom of the lifting auger 42 to a higher position. The lifting auger 42 is an existing mature technology.

[0046] like Figure 5 As shown, the dust removal structure 60 includes a dust suction hood 61 connected to the frame 10. The dust suction hood 61 is inclined and located above the crushing component and the screening structure 20. The dust suction hood 61 is connected to a dust suction fan 62 through a pipe. The dust suction fan 62 is connected to a dust collection box 63 through a pipe. Multiple filters 64 are installed inside the dust collection box 63.

[0047] During the crushing and screening process, the dust extraction fan 62 can be started. At this time, the dust extraction hood 61 will absorb the dust generated by crushing and screening, and transport the dust to the inside of the dust collection box 63 through the pipeline. The dust is then filtered through multiple filters 64 inside the dust collection box 63.

[0048] It should be noted that the pipe connected to the dust collection box 63 is located below the bottom filter 64 inside the dust collection box 63, and the mesh diameter of the filter 64 gradually decreases from bottom to top, so as to better filter the dust.

[0049] like Figure 7As shown, the partition assembly 50 includes a support plate 51 connected to the frame 10. An electric push rod 52 is fixedly installed on the top side of the support plate 51. A partition 53 is fixedly connected to the output end of the electric push rod 52. The partition 53 is located in the middle of two adjacent screens 24 and is used to separate the middle area of ​​the two screens 24.

[0050] During the screening process, the electric push rod 52 can be activated to move the partition 53 downward and make it fit against the screen 24. The partition 53 will prevent the material from moving downward, so that the material can stay on the screen 24 for a longer time, thus making the screening effect of the material better.

[0051] It should be noted that the bottom surface of the partition 53 is inclined, and the inclined part of the partition 53 is parallel to the inclined direction of the screen 24, so that the partition 53 can fit better with the screen 24, thereby making the material isolation effect better and preventing the material from continuing to move downward.

[0052] Multiple material bins 80 are provided on one side of the frame 10. The number of material bins 80 corresponds to the number of feed pipes 28, and the bottom position of the material bins 80 corresponds to the bottom position of the feed pipes 28. The material bins 80 and the feed pipes 28 are in one-to-one correspondence. The material bins 80 are used to collect the screened qualified materials conveyed by the feed pipes 28.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screening machine for the continuous crushing of raw materials, characterized in that, include: Rack (10): A crushing assembly is mounted on a frame (10) and is used to crush materials. A screening structure (20) is installed on the frame (10). The screening structure (20) is located below the crushing component. The screening structure (20) is used to perform multi-stage screening of the material after it has been crushed by the crushing component. A reflux hopper (21) is connected to a screening structure (20), and the reflux hopper (21) is used to collect unqualified materials after multi-stage screening; A secondary crushing component is set below the return hopper (21). The secondary crushing component is installed on the frame (10). The secondary crushing component is used to crush the unqualified materials collected by the return hopper (21). A recycling conveyor belt (30) is set below the screening structure (20) and the secondary crushing component. The recycling conveyor belt (30) is used to recycle the material screened by the screening structure (20) and the material crushed by the secondary crushing component. A return assembly (40) is disposed on one side of the frame (10), and the return assembly (40) corresponds to the end position of the recycling conveyor belt (30); Multiple partition components (50) are disposed on the frame (10), the partition components (50) being used to divide the screening structure (20) into multiple screening areas; A dust removal structure (60) is provided on one side of the frame (10), the dust removal structure (60) being used to absorb and treat the dust generated during the crushing and screening process.

2. The screening machine for sustainable raw material crushing according to claim 1, characterized in that: The crushing assembly and the secondary crushing assembly have the same structure. Both the crushing assembly and the secondary crushing assembly include a crushing box (70), a crushing roller (71), and a motor (73). The crushing box (70) is connected to the frame (10). There are two crushing rollers (71). The two crushing rollers (71) are rotatably installed inside the crushing box (70). Both crushing rollers (71) are connected to gears (72). The two gears (72) mesh with each other. The motor (73) is installed on one side of the crushing box (70). The output end of the motor (73) is connected to the end of one crushing roller (71) away from the gear (72).

3. The screening machine for sustainable raw material crushing according to claim 2, characterized in that: The screening structure (20) includes a screening frame (22), a vibrating motor (23), screens (24), a collection hopper (25), and a return pipe (26). The screening frame (22) is connected to the frame (10). The vibrating motor (23) is installed on one side of the screening frame (22). There are multiple screens (24), which are interconnected and installed inside the screening frame (22). The screens (24) are inclined. The collection hopper (25) is... There are multiple collection hoppers (25), and each collection hopper (25) is connected to the screening frame (22). The number of collection hoppers (25) corresponds to the number of screens (24). Each collection hopper (25) corresponds to one screen (24). There are multiple return pipes (26), and each return pipe (26) is connected to the end of the collection hopper (25). Each return pipe (26) corresponds to one collection hopper (25). Each return pipe (26) is equipped with a control valve (27) and a feeding assembly.

4. A screening machine for sustainable raw material crushing according to claim 3, characterized in that: The feeding assembly includes a feeding pipe (28) and a control valve (29). The feeding pipe (28) is connected to the return pipe (26), and the feeding pipe (28) is inclined. The control valve (29) is connected to the feeding pipe (28).

5. A screening machine for the continuous crushing of raw materials according to claim 4, characterized in that: The return material assembly (40) includes a return material collection box (41), a lifting auger (42), and a return pipe (43). The return material collection box (41) is located on one side of the recycling conveyor belt (30) and corresponds to the output end of the recycling conveyor belt (30). The lifting auger (42) is installed on the return material collection box (41). The return pipe (43) is installed at the end of the lifting auger (42). The return pipe (43) is inclined and its bottom end is located above the crushing assembly.

6. A screening machine for sustainable raw material crushing according to claim 4, characterized in that: The dust removal structure (60) includes a dust hood (61), a dust fan (62), a dust collection box (63), and a filter screen (64). The dust hood (61) is connected to the top side of the frame (10) and is located above the crushing component and the screening structure (20). The dust fan (62) is connected to the end of the dust hood (61) through a pipe. The dust collection box (63) is located on one side of the frame (10) and is connected to the dust fan (62) through a pipe. There are multiple filters (64), and multiple filters (64) are evenly installed inside the dust collection box (63).

7. A screening machine for sustainable raw material crushing according to claim 6, characterized in that: The partition assembly (50) includes a support plate (51), an electric push rod (52), and a partition (53). The support plate (51) is installed on the top side of the frame (10). The electric push rod (52) is connected to the support plate (51), and the partition (53) is connected to the output end of the electric push rod (52).

8. A screening machine for sustainable raw material crushing according to claim 6, characterized in that: A plurality of material bins (80) are provided on one side of the frame (10). The number of material bins (80) corresponds to the number of feeding pipes (28). The bottom position of the material bins (80) corresponds to the bottom position of the feeding pipes (28). The material bins (80) and feeding pipes (28) are in one-to-one correspondence.

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