Iron removal device for waste residue of cement production by magnetic separation

Abstract

This utility model belongs to the field of cement production technology and discloses the structure of a magnetic separation iron removal device for cement production waste residue. It includes a frame on which a magnetic separation conveyor belt is installed. A hopper is located above the feed end of the magnetic separation conveyor belt. A fiber impurity interception component and a spreading component are located above the magnetic separation conveyor belt. A diversion guide plate is located below the discharge end of the magnetic separation conveyor belt. An adhesive impurity cleaning component is located below the magnetic separation conveyor belt. The fiber impurity interception component prevents fibers from entangled in the magnetic separation roller and conveyor belt from the source, ensuring continuous operation of the equipment. The spreading component evenly spreads the waste residue into a thin layer. This uniform material layer allows iron impurities to be more fully exposed to the magnetic field, reducing the problem of missed selection caused by thick layers and significantly improving iron removal efficiency. The adhesive impurity cleaning component removes iron filings, iron sludge, and other impurities adhering to the surface of the conveyor belt in real time, avoiding magnetic field strength attenuation caused by impurity accumulation and ensuring long-term stable magnetic separation effect.

Description

Technical Field

[0001] This utility model belongs to the field of cement production technology, specifically the structure of a magnetic separation iron removal device for waste residue in cement production. Background Technology

[0002] In the cement production process, it is necessary to perform magnetic separation to remove iron from the kiln tail dust, waste clinker, and industrial waste such as steel slag and fly ash generated by the cement itself, in order to prevent iron impurities from wearing down the equipment and affecting the performance of the cement. However, existing magnetic separation devices for removing iron from waste slag have the following core problems: Waste residue often contains fibrous impurities such as plastic bags and hemp ropes, which can easily entangle key components such as magnetic separators and conveyor belts during magnetic separation, causing equipment jams or even shutdowns, increasing maintenance costs and reducing production continuity. Waste residue tends to accumulate into thick layers or localized concentrations during feeding, resulting in large differences in material thickness in the magnetic separation area. In thick layers, the magnetic field cannot penetrate effectively, and iron impurities cannot be separated effectively. In thin layers, the flow rate is too fast, and iron impurities are not fully adsorbed, ultimately resulting in low iron removal efficiency and a high rate of missed selection. After magnetic separation, iron filings, iron sludge, and other impurities are easily left on the surface of the conveyor belt. Long-term accumulation will weaken the magnetic field strength and further reduce the iron removal effect. Traditional manual cleaning methods require machine shutdown, which is time-consuming and labor-intensive, seriously affecting production efficiency.

[0003] Therefore, a magnetic separation iron removal device structure for waste residue in cement production is proposed to address the above-mentioned problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a magnetic separation iron removal device structure for waste residue in cement production, which has the advantages of thorough interception of fiber impurities, uniform material distribution, automatic cleaning of adhering impurities, high iron removal efficiency, stable operation, and convenient maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic separation iron removal device structure for waste residue in cement production, including a frame, a magnetic separation conveyor belt installed on the frame, a hopper above the feed end of the magnetic separation conveyor belt, a fiber impurity interception component and a leveling component above the magnetic separation conveyor belt, a diversion guide plate below the discharge end of the magnetic separation conveyor belt, and an adhesive impurity cleaning component below the magnetic separation conveyor belt.

[0006] Preferably, the magnetic separation conveyor belt includes a drive roller and a magnetic separation roller correspondingly arranged on the frame, and a conveyor belt connects the drive roller and the magnetic separation roller. One end of the drive roller is connected to a first motor through a motor shaft.

[0007] Preferably, the fiber impurity interception assembly includes a central rotating rod with uniformly distributed comb teeth on it, and a second motor is connected to one end of the central rotating rod.

[0008] Preferably, a fixing rod is provided on one side of the central shaft rotating rod, and a comb tooth retaining rod that is inclined and corresponds to the comb tooth rod is fixed on the fixing rod. The comb tooth retaining rod is offset from the comb tooth rod.

[0009] Preferably, the flattening assembly includes a U-shaped frame disposed on the top of the machine frame, an electric telescopic rod is installed on the U-shaped frame, the piston rod of the electric telescopic rod is connected to a flattening plate, and the bottom end of the flattening plate is a certain distance away from the magnetic separation conveyor belt.

[0010] Preferably, a guide rod is fixedly connected to the top of the flat slab, and a guide hole is provided on the U-shaped frame at a position corresponding to the guide rod, through which the guide rod passes.

[0011] Preferably, the adhesive impurity cleaning assembly includes a roller brush disposed below the magnetic separation conveyor belt, the bristles of the roller brush being in contact with the magnetic separation conveyor belt, and one end of the roller brush being connected to a third motor via a motor shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The fiber impurity interception component of this utility model drives the comb rod to rotate through the central shaft to actively hook the fiber impurities in the waste residue. At the same time, it uses the fixed comb rod that is offset from the comb rod to form a synergistic effect of "dynamic hooking + static interception". The rotating comb rod penetrates into the waste residue layer and wraps around the fiber, while the fixed interception rod prevents the fiber from detaching with the rotating rod. This avoids the fiber from wrapping around the magnetic separator roller and conveyor belt from the source, ensuring the continuous operation of the equipment. 2. The flattening component of this utility model uses an electric telescopic rod to drive the flattening plate to rise and fall. With the limit guidance of the guide rod, the distance between the flattening plate and the magnetic separation conveyor belt can be precisely controlled to spread the waste residue evenly into a thin layer. The uniform material layer allows iron impurities to be more fully exposed to the magnetic field, reducing the problem of missed selection caused by thick layers blocking, and significantly improving the iron removal efficiency. At the same time, the height of the flattening plate can be flexibly adjusted according to the particle size of the waste residue. The spacing is increased for coarse particles of waste residue to avoid jamming, and the spacing is decreased for fine powder waste residue to enhance the spreading effect. 3. The adhesive impurity cleaning component of this utility model utilizes a roller brush that adheres to the magnetic separation conveyor belt and is driven by a motor to achieve rotational cleaning, thereby removing impurities such as iron filings and iron sludge adhering to the surface of the conveyor belt in real time. This non-stop self-cleaning mode avoids the attenuation of magnetic field strength caused by the accumulation of impurities, ensuring the long-term stability of magnetic separation effect. Compared with manual cleaning, the active maintenance of the roller brush reduces equipment downtime and improves production continuity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3This is a schematic diagram of the fiber impurity interception component of this utility model; Figure 4 This is a schematic diagram of the structure of the flattening component of this utility model; Figure 5 This is a schematic diagram of the structure of the adhesive impurity cleaning component of this utility model; Figure 6 This is a schematic diagram of the structure of the magnetic separation conveyor belt of this utility model.

[0014] In the diagram: 1. Frame; 2. Magnetic separation conveyor belt; 21. Drive roller; 22. Magnetic separation roller; 23. Conveyor belt; 24. First motor; 3. Hopper; 4. Fiber impurity interception assembly; 41. Central shaft rotating rod; 42. Comb tooth rod; 43. Second motor; 44. Fixing rod; 45. Comb tooth interception rod; 5. Flattening assembly; 51. U-shaped frame; 52. Electric telescopic pole; 53. Flattening board; 54. Guide rod; 55. Guide hole; 6. Diversion guide plate; 7. Adhesive impurity cleaning component; 71. Roller brush; 72. Third motor. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 6 As shown, this utility model provides a structure for a magnetic separation iron removal device for cement production waste residue, including a frame 1, which provides stable support. A magnetic separation conveyor belt 2 is installed on the frame 1. A hopper 3 is provided above the feed end of the magnetic separation conveyor belt 2, which enables orderly feeding of waste residue. A fiber impurity interception component 4 and a spreading component 5 are provided above the magnetic separation conveyor belt 2. A diversion guide plate 6 is provided below the discharge end of the magnetic separation conveyor belt 2, which accurately separates iron impurities and tailings. An adhesive impurity cleaning component 7 is provided below the magnetic separation conveyor belt 2.

[0017] Specifically, the magnetic separation conveyor belt 2 includes a drive roller 21 and a magnetic separation roller 22 respectively set on the frame 1. A conveyor belt 23 is connected between the drive roller 21 and the magnetic separation roller 22. One end of the drive roller 21 is connected to a first motor 24 through a motor shaft. The drive roller 21 and the magnetic separation roller 22 work together to drive the conveyor belt 23 to run. The magnetic separation roller 22 has a built-in strong magnet to form a stable magnetic field. The first motor 24 provides power, laying the foundation for the power and magnetic field of the magnetic separation process.

[0018] Furthermore, the fiber impurity interception component 4 includes a central rotating rod 41, on which evenly distributed comb rods 42 are provided. One end of the central rotating rod 41 is connected to a second motor 43. The second motor 43 drives the central rotating rod 41 to rotate, thereby causing the comb rods 42 to actively hook fiber impurities, thus preventing fibers from entangled in the magnetic separator roller and conveyor belt from the source and ensuring continuous operation of the equipment.

[0019] Furthermore, a fixing rod 44 is provided on one side of the central shaft rotating rod 41. A comb tooth intercepting rod 45, which is inclined and corresponds to the comb tooth rod 42, is fixed on the fixing rod 44. The comb tooth intercepting rod 45 and the comb tooth rod 42 are staggered, and the staggered arrangement forms a "dynamic hooking + static interception" synergy, which prevents the fibers from detaching, facilitates centralized cleaning, and improves the interception effect.

[0020] It is worth noting that the spreading component 5 includes a U-shaped frame 51 located on top of the frame 1. An electric telescopic rod 52 is installed on the U-shaped frame 51. The piston rod of the electric telescopic rod 52 is connected to the spreading plate 53. The bottom end of the spreading plate 53 is a certain distance away from the magnetic separation conveyor belt 2. The U-shaped frame 51 provides installation support. The electric telescopic rod 52 flexibly adjusts the height of the spreading plate 53 to spread the waste residue into a thin layer, so that iron impurities are fully exposed, and it is suitable for waste residue of different particle sizes.

[0021] It is worth noting that a guide rod 54 is fixedly connected to the top of the flat plate 53. A guide hole 55 is provided on the U-shaped frame 51 at the position corresponding to the guide rod 54. The guide rod 54 passes through the guide hole 55. The guide rod 54 cooperates with the guide hole 55 to provide a limit for the lifting and lowering of the flat plate 53, avoid tilting and deviation, and ensure the uniformity and stability of the material spreading.

[0022] It is worth mentioning that the adhesive impurity cleaning component 7 includes a roller brush 71 located below the magnetic separation conveyor belt 2. The bristles of the roller brush 71 are attached to the magnetic separation conveyor belt 2. One end of the roller brush 71 is connected to a third motor 72 via a motor shaft. The third motor 72 drives the roller brush 71 to rotate and clean, removing surface adhesive impurities, avoiding magnetic field attenuation, achieving self-cleaning without stopping the machine, and reducing operation and maintenance costs.

[0023] Among them, the first motor 24, the second motor 43, the electric telescopic rod 52, and the third motor 72 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, a controller, and a switch, which are not the main technical points of this patent and will not be described in detail.

[0024] Working principle and process: The frame 1 provides stable support for the entire device. The first motor 24 drives the drive roller 21 to rotate, which drives the conveyor belt 23 and the magnetic separator roller 22 to run synchronously. The hopper 3 transports cement production waste to the feed end of the conveyor belt 23 in an orderly manner. When the waste moves with the conveyor belt 23 to the fiber impurity interception component 4, the second motor 43 drives the central shaft rotating rod 41 to rotate, which drives the comb rod 42 to actively hook the fiber impurities in the waste. The comb interception rod 45, which is offset from the comb rod 42, prevents the fibers from falling off with the rotating rod, thus achieving the interception and concentration of fiber impurities. Then the waste continues to move to the spreading component 5. Below, the electric telescopic rod 52 on the U-shaped frame 51 drives the flat plate 53 to rise and fall, spreading the waste residue into a uniform thin layer, so that the iron impurities are fully exposed. When the thin layer of waste residue passes through the magnetic separation roller 22 with the conveyor belt 23, the magnetic field of the magnetic separation roller 22 adsorbs the iron impurities onto the surface of the conveyor belt 23. When it reaches the discharge end, the iron impurities fall into one side of the diversion guide plate 6 because they are removed from the magnetic field, while the tailings after iron removal are discharged along the other side of the diversion guide plate 6. At the same time, the third motor 72 drives the roller brush 71 to rotate, and its bristles adhere to the surface of the conveyor belt 23 to clean the residual adhering impurities in real time, ensuring the stable magnetic separation effect of the conveyor belt 23 and the magnetic separation roller 22.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic separation and iron removal device for waste residue in cement production, comprising a frame (1), characterized in that: A magnetic separation conveyor belt (2) is installed on the frame (1). A hopper (3) is provided above the feed end of the magnetic separation conveyor belt (2). A fiber impurity interception component (4) and a spreading component (5) are provided above the magnetic separation conveyor belt (2). A diversion guide plate (6) is provided below the discharge end of the magnetic separation conveyor belt (2). An adhesive impurity cleaning component (7) is provided below the magnetic separation conveyor belt (2).

2. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 1, characterized in that: The magnetic separation conveyor belt (2) includes an active roller (21) and a magnetic separation roller (22) respectively arranged on the frame (1). A conveyor belt (23) is connected between the active roller (21) and the magnetic separation roller (22). One end of the active roller (21) is connected to a first motor (24) through a motor shaft.

3. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 1, characterized in that: The fiber impurity interception component (4) includes a central rotating rod (41), on which evenly distributed comb bars (42) are provided, and one end of the central rotating rod (41) is connected to a second motor (43).

4. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 3, characterized in that: A fixing rod (44) is provided on one side of the central shaft rotating rod (41). A comb tooth retaining rod (45) corresponding to the comb tooth rod (42) is fixed on the fixing rod (44). The comb tooth retaining rod (45) is offset from the comb tooth rod (42).

5. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 1, characterized in that: The flattening assembly (5) includes a U-shaped frame (51) located on top of the frame (1), an electric telescopic rod (52) is installed on the U-shaped frame (51), the piston rod of the electric telescopic rod (52) is connected to a flattening plate (53), and the bottom end of the flattening plate (53) is a certain distance away from the magnetic separation conveyor belt (2).

6. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 5, characterized in that: A guide rod (54) is fixedly connected to the top of the flat plate (53), and a guide hole (55) is provided on the U-shaped frame (51) at the position corresponding to the guide rod (54), and the guide rod (54) passes through the guide hole (55).

7. The structure of the magnetic separation and iron removal device for waste residue in cement production according to claim 1, characterized in that: The adhesive impurity cleaning assembly (7) includes a roller brush (71) located below the magnetic separation conveyor belt (2), the bristles of the roller brush (71) are attached to the magnetic separation conveyor belt (2), and one end of the roller brush (71) is connected to a third motor (72) via a motor shaft.

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