Multi-stage vibrating screen

Abstract

This utility model relates to the field of screening machine technology, specifically to a multi-stage vibrating screen, including a housing, and further comprising: a primary screening mechanism disposed within the housing, a primary crushing mechanism disposed to one side of the primary screening mechanism, a secondary crushing mechanism disposed within the housing and below the primary crushing mechanism, and a secondary screening mechanism disposed below the secondary crushing mechanism. The primary screening mechanism includes a first screen inclinedly disposed within the housing, with first spring assemblies at both ends of the bottom of the first screen, and a first vibrating motor at the bottom of the first screen. The primary crushing mechanism includes a crushing box disposed to one side of the first screen, with an opening at the top and a cover at the opening, crushing components inside the crushing box, and an inclined guide chute on the lower side of the crushing box. This utility model improves the screening effect through multi-stage screening, and simultaneously crushes the raw materials during the overall screening process, improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, and in particular to a multi-stage vibrating screening machine. Background Technology

[0002] The cement production process is complex and delicate, involving multiple key steps. Among them, the screening of cement raw materials is a crucial step in ensuring cement quality and production efficiency. In the traditional cement raw material screening process, commonly used screening equipment such as fixed screens and shaking screens have some shortcomings. For example, they can only perform simple screening and cannot promptly crush the screened raw materials, requiring them to be transported to a crushing device for further crushing, resulting in low processing efficiency. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to propose a multi-stage vibrating screen to solve the problem that current screening machines can only perform simple screening and cannot crush the screened raw materials in a timely manner, requiring them to be transported to a crushing device for crushing again, resulting in low processing efficiency.

[0004] To achieve the above objectives, this utility model provides a multi-stage vibrating screen, including a housing, and further comprising: a primary screening mechanism disposed within the housing, a primary crushing mechanism disposed on one side of the primary screening mechanism, a secondary crushing mechanism disposed within the housing and located below the primary crushing mechanism, a secondary screening mechanism disposed below the secondary crushing mechanism, and a drive mechanism for driving the primary crushing mechanism and the secondary crushing mechanism, wherein:

[0005] The primary screening mechanism includes a first screen that is inclinedly disposed inside the box, a first spring assembly at both ends of the bottom of the first screen, and a first vibration motor at the bottom of the first screen.

[0006] The primary crushing mechanism includes a crushing box disposed on one side of the first screen, the crushing box being equipped with crushing components, and an inclined guide chute on the lower side of the crushing box. The raw material passes through the guide chute and finally falls onto the secondary screening mechanism, where it is further crushed.

[0007] Optionally, the pulverizing assembly includes two sets of pulverizing rollers arranged side-by-side and rotating within the pulverizing chamber.

[0008] Optionally, the secondary crushing mechanism includes a grinding roller rotatably disposed within the housing, the grinding roller being located below the feed trough.

[0009] Optionally, the secondary screening mechanism includes a second screen disposed below the grinding roller. The second screen has an arc groove in the middle, and second spring assemblies are provided at both ends of the bottom of the second screen. A second vibration motor is also provided at the bottom of the second screen. The raw material is further crushed through the interaction between the grinding roller and the second screen.

[0010] During operation, the drive mechanism drives the grinding roller to rotate, and the second vibration motor generates vibration. Through the interaction between the rotating grinding roller and the second screen, the raw material is further ground and crushed. The qualified raw material falls off the second screen through vibration.

[0011] Optionally, the drive mechanism includes a support platform on one side of the housing, a motor on the support platform, a reducer connected to the motor, a first drive shaft connected to the reducer, one end of the first drive shaft being connected to one end of the grinding roller, a first bevel gear on the first drive shaft, a connecting plate on the top of the support platform, a second drive shaft rotatably mounted on the connecting plate, a second bevel gear at one end of the second drive shaft meshing with the first bevel gear, a first drive wheel at the other end of the second drive shaft, the first drive wheel being connected to the second drive wheel via a drive belt, the second drive wheel being fixedly sleeved on one side of one of the grinding rollers, and spur gears respectively mounted at both ends of the two grinding rollers, the two spur gears meshing with each other.

[0012] During operation, the motor drives the first transmission shaft to rotate through the reducer. The first transmission shaft drives the second transmission shaft to rotate through the first bevel gear and the second bevel gear. The second transmission shaft drives one of the crushing rollers to rotate through the first transmission wheel, the transmission belt and the second transmission wheel. The other crushing roller rotates synchronously in the opposite direction through the spur gear. At the same time, the first transmission shaft drives the grinding roller to rotate, so that the first-stage crushing mechanism and the second-stage crushing mechanism can be driven simultaneously through the drive mechanism.

[0013] Optionally, the box body is also provided with a guide ring, which is located below the first screen and above the second screen.

[0014] Optionally, the top of the box has a feed inlet and the bottom of the box has a discharge outlet.

[0015] Optionally, the top of the pulverizing chamber has an opening, and the opening is provided with a cover.

[0016] When this screening machine is working, the first vibrating motor drives the first screen to vibrate, thereby achieving preliminary screening of the raw materials. Larger particles are trapped on the first screen and slide down the inclined direction of the first screen into the crushing box, where they are crushed by the crushing components. The pre-crushed raw materials fall into the secondary screening mechanism through the guide chute. At the same time, smaller particles also fall into the secondary screening mechanism below through the first screen, and are further crushed by the secondary crushing mechanism. The crushed raw materials are then further screened by the secondary screening mechanism.

[0017] As can be seen from the above, this utility model improves the screening effect through multi-stage screening, and at the same time, it can also crush the raw materials during the overall screening process, thereby improving the processing efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the screening machine according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of the grinding roller in an embodiment of the present invention.

[0021] The numbers on the map are:

[0022] 1. Box body; 2. First screen; 3. First spring assembly; 4. First vibrating motor; 5. Crushing box; 6. Cover; 7. Feed guide chute; 8. Crushing roller; 9. Grinding roller; 10. Second screen; 11. Second spring assembly; 12. Second vibrating motor; 13. Support platform; 14. Motor; 15. Reducer; 16. First drive shaft; 17. First bevel gear; 18. Connecting plate; 19. Second bevel gear; 20. Drive belt; 21. Spur gear; 22. Feed guide ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1 As shown, a multi-stage vibrating screen includes a housing 1, with a feed inlet at the top and a discharge outlet at the bottom. It also includes: a primary screening mechanism housed within the housing 1; a primary crushing mechanism located to one side of the primary screening mechanism; a secondary crushing mechanism housed within the housing 1 and below the primary crushing mechanism; a secondary screening mechanism located below the secondary crushing mechanism; and a drive mechanism for driving the primary and secondary crushing mechanisms.

[0026] The primary screening mechanism includes a first screen 2 that is inclinedly arranged inside the housing 1. The bottom ends of the first screen 2 are provided with first spring assemblies 3, and the bottom of the first screen 2 is also provided with a first vibration motor 4.

[0027] The primary crushing mechanism includes a crushing box 5 disposed on one side of the first screen 2. The top of the crushing box 5 has an opening, and a cover 6 is provided at the opening. The crushing box 5 is equipped with crushing components. The lower side of the crushing box 5 has an inclined guide chute 7. The raw material passes through the guide chute 7 and finally falls onto the secondary screening mechanism, where it is further crushed.

[0028] When this screening machine is working, the first vibrating motor 4 drives the first screen 2 to vibrate, thereby achieving preliminary screening of the raw materials. Larger particles of raw materials are trapped on the first screen 2 and slide down the inclined direction of the first screen 2 into the crushing box 5, where they are crushed by the crushing components. The pre-crushed raw materials fall into the secondary screening mechanism through the guide chute 7. At the same time, smaller particles of raw materials also fall into the secondary screening mechanism below through the first screen 2, and are further crushed by the secondary crushing mechanism. The crushed raw materials are then further screened by the secondary screening mechanism.

[0029] As can be seen from the above, this utility model improves the screening effect through multi-stage screening, and at the same time, it can also crush the raw materials during the overall screening process, thereby improving the processing efficiency.

[0030] like Figure 1 As shown, in some embodiments, the crushing assembly includes two sets of crushing rollers 8 arranged side-by-side and rotating within the crushing chamber 5. The two sets of crushing rollers 8 can be mounted in the crushing chamber 5 via bearing seats, and the raw materials are initially crushed by the synchronous counter-rotation of the two sets of crushing rollers 8.

[0031] like Figure 1 As shown, in some embodiments, the secondary crushing mechanism includes a grinding roller 9 rotatably disposed within the housing 1, the grinding roller 9 being located below the feed chute 7. The secondary screening mechanism includes a second screen 10 disposed below the grinding roller 9, the second screen 10 having an arc-shaped groove in its center, second spring assemblies 11 at both ends of its bottom, and a second vibration motor 12 at its bottom, further crushing the raw material through the interaction between the grinding roller 9 and the second screen 10.

[0032] During operation, the drive mechanism drives the grinding roller 9 to rotate, and the second vibration motor 12 works to generate vibration. Through the interaction between the rotating grinding roller 9 and the second screen 10, the raw material is further ground and crushed. The crushed and qualified raw material falls off the second screen 10 through vibration.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments, the drive mechanism includes a support platform 13 disposed on one side of the housing 1, a motor 14 disposed on the support platform 13, a reducer 15 connected to the motor 14, a first drive shaft 16 connected to the reducer 15, one end of the first drive shaft 16 being connected to one end of the grinding roller 9, a first bevel gear 17 disposed on the first drive shaft 16, a connecting plate 18 disposed on the top of the support platform 13, a second drive shaft rotatably disposed on the connecting plate 18, a second bevel gear 19 disposed at one end of the second drive shaft and meshing with the first bevel gear 17, a first drive wheel disposed at the other end of the second drive shaft, the first drive wheel being connected to the second drive wheel via a drive belt 20, the second drive wheel being fixedly sleeved on one side of one of the crushing rollers 8, and spur gears 21 disposed at both ends of the two crushing rollers 8, the two spur gears 21 meshing with each other.

[0034] During operation, the motor 14 drives the first transmission shaft 16 to rotate through the reducer 15. The first transmission shaft 16 drives the second transmission shaft to rotate through the first bevel gear 17 and the second bevel gear 19. The second transmission shaft drives one of the crushing rollers 8 to rotate through the first transmission wheel, the transmission belt 20 and the second transmission wheel. The other crushing roller 8 achieves synchronous reverse rotation through the spur gear 21. At the same time, the first transmission shaft 16 drives the grinding roller 9 to rotate, so that the first-stage crushing mechanism and the second-stage crushing mechanism can be driven simultaneously through the drive mechanism.

[0035] like Figure 1 As shown, in some embodiments, the housing 1 is further provided with a guide ring 22, which is located below the first screen 2 and above the second screen 10. The guide ring 22 is welded to the inner wall of the housing 1 and is used to guide the raw material falling from the first screen 2 to accurately fall into the secondary screening mechanism.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage vibratory screening machine comprising a housing (1), characterised in that, Also includes: A primary screening mechanism is provided inside the housing (1), a primary crushing mechanism is provided on one side of the primary screening mechanism, a secondary crushing mechanism is provided inside the housing (1) and located below the primary crushing mechanism, a secondary screening mechanism is provided below the secondary crushing mechanism, and a drive mechanism is provided to drive the primary crushing mechanism and the secondary crushing mechanism, wherein: The primary screening mechanism includes a first screen (2) inclinedly arranged inside the box (1), a first spring assembly (3) at both ends of the bottom of the first screen (2), and a first vibration motor (4) at the bottom of the first screen (2). The primary crushing mechanism includes a crushing box (5) disposed on one side of the first screen (2). The crushing box (5) is equipped with crushing components. The lower side of the crushing box (5) has an inclined guide chute (7). The raw material passes through the guide chute (7) and finally falls onto the secondary screening mechanism, and is further crushed by the secondary crushing mechanism.

2. The multi-stage vibratory screening machine of claim 1, wherein, The crushing assembly includes two sets of crushing rollers (8) arranged side by side and rotating inside the crushing box (5).

3. The multi-stage vibratory screening machine of claim 2, wherein, The secondary crushing mechanism includes a grinding roller (9) rotatably disposed inside the housing (1), the grinding roller (9) being located below the feed trough (7).

4. The multi-stage vibratory screening machine of claim 3, wherein, The secondary screening mechanism includes a second screen (10) disposed below the grinding roller (9). The second screen (10) has an arc groove in the middle. The bottom ends of the second screen (10) are provided with second spring assemblies (11). The bottom of the second screen (10) is also provided with a second vibration motor (12). The raw material is further crushed by the interaction between the grinding roller (9) and the second screen (10).

5. The multi-stage vibratory screening machine of claim 4, wherein, The driving mechanism includes a support platform (13) on one side of the housing (1), a motor (14) on the support platform (13), a reducer (15) connected to the motor (14), a first drive shaft (16) connected to the reducer (15), one end of the first drive shaft (16) being connected to one end of the grinding roller (9), a first bevel gear (17) on the first drive shaft (16), a connecting plate (18) on the top of the support platform (13), a second drive shaft rotatably mounted on the connecting plate (18), a second bevel gear (19) on one end of the second drive shaft and meshing with the first bevel gear (17), a first drive wheel on the other end of the second drive shaft, the first drive wheel being connected to the second drive wheel via a drive belt (20), the second drive wheel being fixedly mounted on one side of one of the crushing rollers (8), and spur gears (21) respectively mounted at both ends of the two crushing rollers (8), the two spur gears (21) meshing with each other.

6. The multi-stage vibratory screening machine of claim 4, wherein, The box (1) is also provided with a guide ring (22), which is located below the first screen (2) and above the second screen (10).

7. The multi-stage vibratory screening machine of claim 1, wherein, The top of the box (1) has a feed inlet, and the bottom of the box (1) has a discharge outlet.

8. The multi-stage vibrating screen according to claim 1, characterized in that, The top of the pulverizing box (5) has an opening, and the opening is provided with a cover (6).

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