Powder slag refining and separating device of cement grinding station

Abstract

The utility model provides a powder slag refining and separating device of a cement grinding station, which relates to the technical field of cement grinding and comprises a tank body, and a driving component is mounted at the bottom end of the tank body; a plurality of layers of crushing assemblies; the multi-layer smashing assembly comprises three sets of connecting rods, the inner side of one set of connecting rods is rotationally connected with a first rotating wheel, the inner side of the other set of connecting rods is rotationally connected with a second rotating wheel, and the inner side of the last set of connecting rods is rotationally connected with a third rotating wheel; according to the design, materials are crushed more uniformly through graded rolling of the multiple rotating wheels, impurities are prevented from entering the materials before the materials are crushed through vertical shaking of the filter screen and synchronous rotation of the rotating wheels, the purity of the materials is kept, and through the gradually-reduced gap design in the crushing process, the crushing efficiency of the materials is improved. And materials which are not crushed cannot enter the next layer, so that the crushing uniformity and efficiency are improved, and the problem that large particles are difficult to effectively separate and refine in a traditional device is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of cement grinding technology, and in particular to a powder and slag refining and separation device for a cement grinding station. Background Technology

[0002] As a link in cement production, the cement grinding station is responsible for grinding raw materials such as clinker and gypsum into qualified cement products. Current cement grinding processes often face several technical challenges, particularly in the separation and refinement of powder and slag during the grinding process.

[0003] Traditional cement grinding systems typically employ separation devices, such as high-efficiency separators or air classifiers, which can improve grinding efficiency to some extent. However, they are still difficult to effectively separate and refine slag containing larger particles. These insufficiently refined slag not only affect the final performance of cement but may also lead to energy waste and reduced production efficiency.

[0004] Therefore, this utility model provides a powder and slag refining and separation device for a cement grinding station. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a powder and slag refining and separation device for a cement grinding station.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a powder and slag refining and separation device for a cement grinding station, comprising;

[0007] A tank body, wherein a drive assembly is installed at the bottom end of the tank body;

[0008] A multi-layer grinding assembly; the multi-layer grinding assembly includes connecting rods, the connecting rods are provided in three sets, one set of the connecting rods is rotatably connected to a first rotating wheel on the inner side, another set of the connecting rods is rotatably connected to a second rotating wheel on the inner side, and the last set of the connecting rods is rotatably connected to a third rotating wheel on the inner side.

[0009] The screening assembly includes a support rod and an eccentric protrusion. A positioning column is fixedly connected to the top of the support rod, and a sliding column is slidably connected to the outside of the positioning column. A return spring is sleeved on the outside of the positioning column. A filter screen is fixedly connected to the bottom of the support rod, and the bottom of the filter screen contacts the outside of the eccentric protrusion.

[0010] Preferably, the drive assembly includes a motor fixedly connected to the bottom of the tank, a drive rod fixedly connected to the drive end of the motor, a sleeve fixedly connected to the outer side of the drive rod, and the sleeve being rotatably connected to the inner wall of the tank.

[0011] Preferably, the end of the connecting rod away from the tank is fixedly connected to the outside of the drive rod, and the inside of the filter screen is rotatably connected to the outside of the drive rod.

[0012] Preferably, the outer sides of the first, second, and third rotating wheels are all rotatably connected to the grooves on the inner wall of the tank.

[0013] Preferably, the diameter ratio of the first, second, and third rotating wheels is designed to gradually increase.

[0014] Preferably, one end of the return spring is fixedly connected to the slide column, and the other end of the return spring is fixedly connected to the support rod.

[0015] Preferably, the bottom of the tank is provided with a feed inlet and the bottom of the tank is fixedly connected with a discharge outlet.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This invention utilizes a motor to drive a drive rod, which in turn rotates a sleeve. The contact between the eccentric protrusion at the top of the sleeve and the concave block at the bottom of the filter screen causes the filter screen to vibrate up and down. During this vibration, a return spring transmits pressure to a sliding column. The contact between the sliding column and the positioning column generates a rebound force, which ultimately pushes the filter screen in a reciprocating motion via a support rod. Simultaneously, material enters the top of the sleeve, and the rotation of the sleeve generates centrifugal force, transporting the material to the first, second, and third rotating wheels for progressive pulverization, ensuring the material achieves the desired fineness. This design, through the graded crushing of multiple rotating wheels, results in more uniform pulverization of the material. Furthermore, the up-and-down vibration of the filter screen and the synchronous rotation of the rotating wheels prevent impurities from entering the material before crushing, maintaining its purity. During the crushing process, the gradually narrowing gap design prevents uncrushed material from entering the next layer, improving the uniformity and efficiency of pulverization. This effectively solves the problem of effectively separating and refining larger particles in traditional devices. Attached Figure Description

[0018] Figure 1 A perspective view of a powder and slag refining and separation device for a cement grinding station provided by this utility model;

[0019] Figure 2 A schematic diagram of the internal structure of the tank of a cement grinding station slag refining and separation device provided by this utility model;

[0020] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram;

[0021] Figure 4A schematic diagram of the screening component structure of a cement grinding station slag refining and separation device provided by this utility model;

[0022] Figure 5 for Figure 4 Enlarged diagram of point B in the image.

[0023] Legend:

[0024] 1. Tank body; 2. Feed inlet

[0025] 3. Drive assembly; 31. Motor; 32. Drive rod; 33. Sleeve;

[0026] 4. Multi-layer grinding assembly; 41. Connecting rod; 42. First impeller; 43. Second impeller; 44. Third impeller; 45. Discharge port;

[0027] 5. Screening assembly; 51. Support rod; 52. Positioning column; 53. Sliding column; 54. Return spring; 55. Filter screen; 56. Eccentric protrusion. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a powder and slag refining and separation device for a cement grinding station, comprising;

[0030] Tank 1, with a feed inlet 2 at the top of the tank 1;

[0031] Tank 1 is the main outer shell of the entire powder and slag refining and separation device, used to contain the powder and slag and the internal separation components, ensuring that the separation process is carried out in a closed space. The feed inlet 2 is located at the bottom of tank 1 and is used to introduce the powder and slag to be processed into tank 1.

[0032] A drive assembly 3 is installed at the bottom of the tank body 1. The drive assembly 3 includes a motor 31 fixedly connected to the bottom of the tank body 1. A drive rod 32 is fixedly connected to the drive end of the motor 31. The end of the connecting rod 41 away from the tank body 1 is fixedly connected to the outside of the drive rod 32. A sleeve 33 is fixedly connected to the outside of the drive rod 32. The sleeve 33 is rotatably connected to the inner wall of the tank body 1.

[0033] Motor 31 is the core component of drive assembly 3, providing power to the entire device. It drives drive rod 32 to rotate via its drive end. Drive rod 32 connects motor 31 and sleeve 33, transmitting power from motor 31 to sleeve 33, causing sleeve 33 to rotate. Sleeve 33 is installed on the outside of drive rod 32. Rotation of sleeve 33 refines the powder and slag, and causes the material at the top to move outwards under centrifugal force, proceeding to the next crushing step.

[0034] like Figure 1 - Figure 3 As shown, the multi-layer crushing assembly 4 includes connecting rods 41, which are arranged in three sets. One set of connecting rods 41 is rotatably connected to a first rotating wheel 42 on its inner side, another set of connecting rods 41 is rotatably connected to a second rotating wheel 43 on its inner side, and the last set of connecting rods 41 is rotatably connected to a third rotating wheel 44 on its inner side. The outer sides of the first rotating wheel 42, the second rotating wheel 43, and the third rotating wheel 44 are all rotatably connected to the groove on the inner wall of the tank body 1. The diameter ratio of the first rotating wheel 42, the second rotating wheel 43, and the third rotating wheel 44 is gradually increasing. The bottom end of the tank body 1 is fixedly connected to a discharge port 45.

[0035] The connecting rod 41 is used to connect the tank body 1 and each rotor, ensuring that the rotor can be stably installed inside the tank body 1 and transmitting power from the drive assembly 3 to each rotor. The first rotor 42 is located at the bottom layer and has the smallest diameter. It is used to finally refine the powder and ensure that the powder and slag reach the required fineness. The second rotor 43 is located in the middle layer and has a moderate diameter. It further refines the powder and slag processed by the first rotor 42. The third rotor 44 is located at the top layer and has the largest diameter. It is mainly used to initially crush larger powder and slag particles. Through the rotor design with gradually increasing diameter, the powder and slag are refined step by step to ensure the uniformity of the final product. The groove on the inner wall of the tank body 1 is used to install and support the rotor to ensure that the rotor can rotate smoothly. The discharge port 45 is located at the bottom of the tank body 1 and is used to discharge the refined and separated powder and slag.

[0036] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the sieving assembly 5 includes a support rod 51 and an eccentric protrusion 56. A positioning post 52 is fixedly connected to the top of the support rod 51, and a sliding post 53 is slidably connected to the outside of the positioning post 52. A return spring 54 is sleeved on the outside of the positioning post 52. One end of the return spring 54 is fixedly connected to the sliding post 53, and the other end of the return spring 54 is fixedly connected to the support rod 51. A filter screen 55 is fixedly connected to the bottom of the support rod 51. The inner side of the filter screen 55 is rotatably connected to the outside of the drive rod 32, and the bottom end of the filter screen 55 is in contact with the outside of the eccentric protrusion 56.

[0037] The support rod 51 is used to fix the filter screen 55. The positioning post 52 is fixed to the top of the support rod 51 and is used to install the sliding post 53 and provide an installation position for the return spring 54. The sliding post 53 is slidably connected to the outside of the positioning post 52. It achieves reciprocating motion through the elastic action of the return spring 54, realizing an irregular motion trajectory. The return spring 54 is connected between the sliding post 53 and the support rod 51, providing elastic force so that the sliding post 53 can reciprocate. The elastic vibration can effectively prevent powder and slag from accumulating on the filter screen 55 and improve screening efficiency. The filter screen 55 is installed at the bottom of the support rod 51 and is used to screen powder and slag to prevent impurities from entering. The eccentric protrusion 56 is installed on the drive rod 32. It generates vibration through contact with the filter screen 55 and cooperates with the return spring 54 to realize the continuous vibration of the filter screen 55, further improving screening efficiency.

[0038] Working principle:

[0039] like Figure 1 - Figure 4 As shown:

[0040] In use: First, material is fed into the tank 1 through the feed inlet 2 at the top of the tank 1. Then, the motor 31 is started. The rotation of the motor 31 drives the drive rod 32 to rotate, which in turn drives the sleeve 33 to rotate. Due to the indirect contact between the eccentric protrusion 56 at the top of the sleeve 33 and the concave block at the bottom of the filter screen 55, the filter screen 55 vibrates up and down under the drive of the motor 31. When the eccentric protrusion 56 disengages from the bottom of the filter screen 55, the pressure is transmitted to the sliding column 53 under the action of the return spring 54. The contact between the sliding column 53 and the positioning column 52 generates a rebound force, which generates pressure on the support rod 51. The connection between the support rod 51 and the filter screen 55 causes the filter screen 55 to push downward, producing a reciprocating motion. Subsequently, when the material enters the top of the sleeve 33, the sleeve... The rotation of column 33 generates centrifugal force, which conveys the material into the gap between the first rotating wheel 42 and the tank 1. Then, the drive rod 32 drives the connecting rod 41 to rotate, and drives the first rotating wheel 42, the second rotating wheel 43 and the third rotating wheel 44 to rotate synchronously. First, the material is initially crushed by the rotation of the first rotating wheel 42, and then falls into the second rotating wheel 43, where it is further crushed by the rotation of the second rotating wheel 43. Finally, it is crushed by the third rotating wheel 44 at the bottom, ensuring that the material can achieve the expected crushing effect. During the rolling of the first rotating wheel 42, the second rotating wheel 43 and the third rotating wheel 44, the gap between the column 33 and the tank 1 gradually narrows, so that the uncrushed material will not fall into the next layer, thereby increasing the uniformity of material crushing. Finally, the material is sent out through the discharge port 45 at the bottom to complete the crushing effect.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A powder and slag refining and separation device for a cement grinding station, characterized in that, include; Tank (1), with a drive assembly (3) installed at the bottom of the tank (1). Multi-layer grinding assembly (4); the multi-layer grinding assembly (4) includes connecting rods (41), the connecting rods (41) are provided in three sets, one set of the connecting rods (41) is rotatably connected to the inner side of the first rotating wheel (42), another set of the connecting rods (41) is rotatably connected to the inner side of the second rotating wheel (43), and the last set of the connecting rods (41) is rotatably connected to the inner side of the third rotating wheel (44). The sieving assembly (5) includes a support rod (51) and an eccentric protrusion (56). A positioning column (52) is fixedly connected to the top of the support rod (51). A sliding column (53) is slidably connected to the outside of the positioning column (52). A return spring (54) is sleeved on the outside of the positioning column (52). A filter screen (55) is fixedly connected to the bottom of the support rod (51). The bottom of the filter screen (55) is in contact with the outside of the eccentric protrusion (56).

2. The powder and slag refining and separation device for a cement grinding station according to claim 1, characterized in that: The drive assembly (3) includes a motor (31) fixedly connected to the bottom of the tank (1). The drive end of the motor (31) is fixedly connected to a drive rod (32). A sleeve (33) is fixedly connected to the outside of the drive rod (32). The sleeve (33) is rotatably connected to the inner wall of the tank (1).

3. The powder and slag refining and separation device for a cement grinding station according to claim 2, characterized in that: The end of the connecting rod (41) away from the tank (1) is fixedly connected to the outside of the drive rod (32), and the inside of the filter screen (55) is rotatably connected to the outside of the drive rod (32).

4. The powder and slag refining and separation device for a cement grinding station according to claim 1, characterized in that: The outer sides of the first rotating wheel (42), the second rotating wheel (43) and the third rotating wheel (44) are rotatably connected to the inner wall groove of the tank body (1).

5. The powder and slag refining and separation device for a cement grinding station according to claim 1, characterized in that: The diameter ratio of the first rotating wheel (42), the second rotating wheel (43), and the third rotating wheel (44) is designed to gradually increase.

6. The powder and slag refining and separation device for a cement grinding station according to claim 1, characterized in that: One end of the reset spring (54) is fixedly connected to the slide column (53), and the other end of the reset spring (54) is fixedly connected to the support rod (51).

7. The powder and slag refining and separation device for a cement grinding station according to claim 1, characterized in that: The bottom end of the tank (1) is provided with a feed inlet (2) and the bottom end of the tank (1) is fixedly connected with a discharge outlet (45).

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