Raw material mixing and grinding machine and method based on refractory material processing

Abstract

This invention discloses a raw material mixing mill and method based on refractory material processing, relating to the field of mixing mill technology. It includes a frame with a storage bin on the frame, a mounting frame inside the storage bin, and a pair of grinding wheels mounted on the mounting frame. This invention utilizes a spiral scraping assembly, where the arc-shaped main cutting edge adheres to the side of the grinding wheel, and the right-angle scraping edge adheres to the grinding surface of the grinding wheel. As the grinding wheel rotates, it continuously scrapes away adhering material from the side end face and the hub connection area. The scraped material moves along the spiral guide groove towards the outer side of the grinding wheel and is crushed by the crushing teeth. This reduces the continuous accumulation of hard material shells and the direct mixing of large pieces of material shells into the mixture, thus helping to maintain the dynamic balance of the grinding wheel, the grinding pressure, and the uniformity of the mixture.

Description

Technical Field

[0001] This invention relates to the field of mixing mill technology, and in particular to a raw material mixing mill and method based on refractory material processing. Background Technology

[0002] Refractory materials are indispensable basic components in high-temperature industries such as metallurgy and building materials. Raw material mixing and milling is a key process in refractory product manufacturing. A raw material mixing and milling machine based on refractory material processing is the core equipment for completing this process. It achieves uniform mixing and plasticization of aggregates, fine powders, and liquid binders according to the specified ratio through the crushing and tumbling action of the milling wheels. The dynamic balance and crushing accuracy of the milling wheels directly affect the overall uniformity of the mixture, thus determining the firing quality and physical properties of the finished refractory products. Existing mixing and milling machines are generally equipped with scraping structures to clean adhering materials from the cylindrical working surface of the milling wheels, ensuring stable crushing operations. However, existing raw material mixing and milling machines based on refractory material processing still have the following shortcomings during use: The fine powder in refractory raw materials, when mixed with liquid binders, exhibits strong adhesion and readily adheres to the side end face of the milling wheel and the hub connection area. This accumulation during production forms a hardened shell. This shell alters the effective weight distribution and dynamic balance of the milling wheel, leading to uneven rolling pressure across different areas and exacerbating eccentric wear on the milling wheel bearings and rolling components. Furthermore, accidental detachment of the hardened shell can create large clumps that mix into the finished mixture, disrupting its compositional uniformity and directly reducing the firing quality and performance stability of the refractory products. Existing scraping mechanisms in mixing mills are designed only for the cylindrical working surface of the milling wheel, failing to cover the side face and hub connection area. Moreover, ordinary flexible scrapers are insufficient to thoroughly remove the highly viscous material adhering to the sides of the refractory mixture. Summary of the Invention

[0003] The purpose of this application is to provide a raw material mixing mill and method based on refractory material processing, which can effectively solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a raw material mixing and grinding mill based on refractory material processing, comprising a frame, a storage bin on the frame, a mounting frame inside the storage bin, a pair of grinding wheels mounted on the mounting frame, and a spiral scraping assembly on the mounting frame, the spiral scraping assembly comprising: a blade body and multiple crushing teeth; wherein, the blade body is disposed on the side of the grinding wheel; the blade body comprises an arc-shaped main cutting edge and a right-angle scraping edge, the arc-shaped main cutting edge and the right-angle scraping edge being integrally formed at a right angle; the arc-shaped main cutting edge is fitted against the side of the grinding wheel, and the right-angle scraping edge is integrally formed at a right angle; the arc-shaped main cutting edge is fitted against the side of the grinding wheel, and the right-angle scraping edge is integrally formed at a right angle. The blade is fitted to the grinding surface of the grinding wheel; a spiral guide groove is provided on the blade body, and multiple crushing teeth are provided in the spiral guide groove; when the grinding wheel rotates, the material scraped by the blade body is discharged to the outside of the grinding wheel through the spiral guide groove, and crushed by the crushing teeth; a self-sharpening guide groove is provided on the back of the blade body corresponding to the arc-shaped main cutting edge; the cross-section of the self-sharpening guide groove is V-shaped and arranged along the entire length of the arc-shaped main cutting edge; the groove depth of the self-sharpening guide groove gradually increases along the wear direction of the cutting edge, and the groove wall of the self-sharpening guide groove forms a fixed wedge angle with the arc-shaped main cutting edge.

[0005] Preferably, the blade body has a spiral arc-shaped structure, allowing the material scraped out by the blade body to be discharged along the spiral arc-shaped structure to the outside of the grinding wheel side.

[0006] Preferably, a floating blade holder assembly is provided between the mounting bracket and the blade body; the floating blade holder assembly is used to drive the blade body to automatically conform to the side of the grinding wheel to compensate for the wear of the blade edge.

[0007] Preferably, the floating blade holder assembly includes a connecting block and a linear spring; the mounting bracket has a mounting groove arranged parallel to the axis of the grinding wheel, the blade body is slidably connected to the mounting groove through the connecting block, the linear spring is disposed in the mounting groove, one end of the linear spring is connected to the mounting groove, and the other end of the linear spring is connected to the connecting block; when the linear spring is unrestrained, it is allowed to pull the blade body on the connecting block closer to the side of the grinding wheel.

[0008] Preferably, a sliding groove is formed in the mounting groove along its length, and a slider is slidably connected to the sliding groove, and the connecting block is slidably connected to the sliding groove through the slider.

[0009] Preferably, a damping block is provided at the end of the mounting groove away from the linear spring. The damping block has a stepped shaft structure. The thin shaft end of the damping block has multiple annular grooves that are concentric with the thin shaft axis and are equally spaced. The connecting block abuts against the thin shaft end.

[0010] Preferably, a cover plate is provided on the mounting bracket at the position corresponding to the mounting slot; the cover plate is used to cover the mounting slot to prevent impurities from entering.

[0011] Preferably, the blade body is provided with an air curtain dustproof assembly; the air curtain dustproof assembly includes an annular air curtain nozzle; the annular air curtain nozzle is disposed on the blade body, the blade body is provided with an air inlet, one end of the air inlet is connected to an air source, and the other end of the air inlet is connected to the annular air curtain nozzle; the annular air curtain nozzle has an annular pressure equalizing air chamber and multiple inclined spray holes spaced equally around the periphery of the annular air curtain nozzle, and one end of the air inlet is connected to the multiple inclined spray holes through the annular pressure equalizing air chamber; the air ejected from the multiple inclined spray holes forms a conical air curtain structure, and the conical air curtain is arranged along the length direction of the cutting edge from the sharp guide groove.

[0012] Preferably: a controller is provided on the frame; a pressure sensor is provided in the slider to detect the pressure borne by the cutter body when it is blocked by a hard block; a position sensor is provided in the mounting groove to detect the position of the connecting block in the mounting groove; both the pressure sensor and the displacement sensor are connected to the controller via signal control.

[0013] A method for mixing and grinding raw materials based on refractory material processing, characterized by employing the aforementioned raw material mixing and grinding mill based on refractory material processing; specifically including the following steps: Step 1, Material Mixing and Grinding: After the material is discharged into the storage silo, the mounting frame rotates around the axis of the storage silo, driving a pair of grinding wheels on the mounting frame to roll inside the storage silo. The material is squeezed by the circumference of the grinding wheels and the bottom of the storage silo, thus achieving material mixing and grinding. Step 2, Side Cleaning: After the material has been mixed and ground for a long time, the spiral scraper component cleans up the material that has been adhering to the side end face of the grinding wheel and the hub connection area, which has been continuously accumulating and forming a hard shell. That is, as the grinding wheel rolls, the arc-shaped main blade scrapes off the shell on the side end face of the grinding wheel, and with the cooperation of the right-angle scraper, the shell at the dead corner of the hub connection of the grinding wheel is scraped off. The scraped shell is then guided outward along the spiral guide groove to the outside of the side of the grinding wheel. During the process of being guided out, the shell is broken into fine particles by the cooperation of multiple crushing teeth.

[0014] In summary, the technical effects and advantages of this invention are as follows: 1. This invention, by setting up a spiral scraping component, makes the arc-shaped main blade surface fit against the side of the grinding wheel and the right-angle scraper blade fit against the grinding wheel's pressing surface. When the grinding wheel rotates, it continuously scrapes off the adhering material on the side end face and the hub connection area. The scraped material moves along the spiral guide groove to the outside of the grinding wheel side and is crushed by the crushing teeth. This reduces the continuous accumulation of hard shells and the direct mixing of large shells into the mixture, which is beneficial to maintaining the dynamic balance of the grinding wheel, the grinding pressure, and the uniformity of the mixture.

[0015] 2. This invention, by setting a self-sharpening guide groove and a floating blade holder assembly, utilizes the structure of the self-sharpening guide groove arranged along the entire length of the arc-shaped main cutting surface and the groove depth gradually increasing along the wear direction. This constrains the blade wear process by the wedge-shaped angle formed by the groove wall and the arc-shaped main cutting surface. At the same time, the linear spring drives the blade body to move closer to the side of the grinding wheel through the connecting block, which can compensate for the gap generated after the blade body wears, thereby maintaining the fit between the blade body and the side of the grinding wheel. This is beneficial to extend the continuous scraping time and reduce frequent manual adjustments.

[0016] 3. This invention, by setting up a sliding groove, a slider, a damping block, and a cover plate, allows the connecting block to slide stably along the length of the mounting groove via the slider, and when it moves to the end away from the linear spring, it abuts against the thin shaft end of the damping block; the stepped shaft structure and the annular groove at the end of the thin shaft can buffer the abutment process, and the cover plate blocks the mounting groove, thereby reducing the impact of the connecting block's movement and preventing material impurities from entering the mounting groove, which is beneficial to maintaining the movement stability of the floating tool holder assembly and facilitates daily cleaning and maintenance.

[0017] 4. This invention, by setting up an air curtain dustproof component, allows the air supplied by the air source to enter the annular pressure equalization air chamber through the air inlet, and then be sprayed out by multiple circumferentially spaced inclined nozzles to form a conical air curtain distributed along the length of the self-sharpening guide groove of the cutting edge. This air curtain can form a directional airflow constraint on the fine particles generated during the scraping of materials by the blade and the crushing of materials by the crushing teeth, thereby reducing the range of particle diffusion to the self-sharpening guide groove of the cutting edge and the floating connection area, which is beneficial to reducing the impact of impurity adhesion on the blade's adhesion and movement, and improving dust control in the working area.

[0018] 5. This invention, by setting up a pressure sensor, a position sensor, and a controller, enables the pressure sensor to detect the pressure on the blade body when it is blocked by a hard block, the position sensor to detect the position of the connecting block in the mounting groove, and transmits the detection signal to the controller; thereby, the stress state of the blade body and the position of the connecting block can be monitored accordingly, which facilitates the timely identification of abnormal obstruction or displacement, thus providing a basis for equipment inspection, blade edge maintenance, and stable control of the continuous mixing and grinding process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the interior of the storage silo of the present invention from a first-view perspective; Figure 3 This is a two-dimensional structural diagram of the interior of the storage silo of the present invention from a second perspective; Figure 4 This is a three-dimensional structural diagram of the grinding wheel and blade of the present invention; Figure 5 This is a three-dimensional structural diagram of the blade body of the present invention from a first-view perspective; Figure 6 This is a three-dimensional structural diagram of the blade body of the present invention from a second perspective; Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the mounting bracket of the present invention; Figure 8 This is a three-dimensional structural diagram of the damping block of the present invention; Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the annular air curtain nozzle of the present invention; Figure 10 This is a flowchart of the method of the present invention.

[0021] In the diagram: 1. Frame; 2. Storage bin; 3. Mounting frame; 4. Roller; 5. Spiral scraper assembly; 51. Blade body; 511. Arc-shaped main cutting edge; 512. Right-angle scraper blade; 52. Spiral guide groove; 53. Crushing tooth; 54. Self-sharpening guide groove; 6. Floating blade holder assembly; 61. Mounting groove; 62. Connecting block; 63. Linear spring; 64. Slide groove; 65. Slider; 66. Damping block; 67. Annular groove; 68. Cover plate; 7. Air curtain dustproof assembly; 71. Annular air curtain nozzle; 72. Air inlet; 73. Annular pressure equalizing air chamber; 74. Inclined spray hole. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1-6The illustrated raw material mixing and grinding mill based on refractory material processing includes a frame 1, a storage bin 2 mounted on the frame 1, a mounting frame 3 inside the storage bin 2, and a pair of grinding wheels 4 mounted on the mounting frame 3. A spiral scraping assembly 5 is mounted on the mounting frame 3. The spiral scraping assembly 5 includes a blade body 51 disposed on the side of the grinding wheels 4. The blade body 51 includes an arc-shaped main cutting surface 511 and a right-angle scraping blade 512 integrally formed at right angles to each other. The arc-shaped main cutting surface 511 is fitted to the side of the grinding wheel 4, and the right-angle scraping blade 512 is fitted to the grinding surface of the grinding wheel 4. A spiral guide groove 52 is formed on the blade body 51, and multiple crushing teeth 53 are provided at the spiral guide groove 52. The blade body 51 has a self-sharpening guide groove 54 on the back of the arc-shaped main cutting edge 511. The cross-section of the self-sharpening guide groove 54 is V-shaped and arranged along the entire length of the arc-shaped main cutting edge 511. The groove depth of the self-sharpening guide groove 54 gradually increases along the direction of blade wear. The groove wall of the self-sharpening guide groove 54 forms a fixed wedge angle with the arc-shaped main cutting edge 511.

[0024] It should be noted that during use, the material to be mixed and ground is introduced into the storage hopper 2. The mounting frame 3 rotates around the axis of the storage hopper 2, driving a pair of grinding wheels 4 to roll. The material is squeezed and turned between the circumferential surface of the grinding wheels 4 and the bottom of the storage hopper 2. When the grinding wheels 4 roll, the arc-shaped main cutting edge 511 continuously scrapes off the material adhering to the side end face of the grinding wheel 4, while the right-angle scraping edge 512 simultaneously cleans the material adhering to the grinding surface of the grinding wheel 4 near the hub connection position. The scraped material enters the spiral guide groove 52 and is discharged to the outside of the side of the grinding wheel 4. During the discharge process, it is squeezed by multiple crushing teeth 53 to form smaller particles, which then re-participate in the mixing and grinding in the storage hopper 2.

[0025] The arc-shaped main cutting edge 511 and the right-angle scraping edge 512 correspond to different surfaces of the grinding wheel 4, forming a continuous scraping path at the junction of the side end face and the hub. The spiral guide groove 52 guides the scraped material outward, and the crushing teeth 53 further reduce the size of the shell particles, which can reduce the long-term accumulation of adhering materials to form a hard shell and the direct detachment of large shells into the mixture. The self-sharpening guide groove 54, through its gradually changing groove depth and fixed wedge angle, cooperates with the blade wear process to help maintain the working state of the scraping edge, thereby maintaining the dynamic balance of the grinding wheel 4 and the stability of the mixing process.

[0026] See Figure 5 The blade 51 has a spiral arc structure. The spiral arc structure works in conjunction with the circumferential motion of the side of the grinding wheel 4 so that the material scraped by the blade 51 can be discharged outward along the spiral extension direction of the blade 51 towards the outside of the side of the grinding wheel 4.

[0027] It should be noted that as the grinding wheel 4 rotates, the adhering material first contacts the scraping edge of the blade 51 and detaches from the grinding wheel 4. Then, under the action of the movement of the grinding wheel 4 and the guiding action of the spiral arc structure, it moves along the spiral guide groove 52. When the material moves to the position of the crushing tooth 53, it is crushed by compression and then discharged from the vicinity of the side of the grinding wheel 4, so as to avoid the scraped material from staying in the contact area between the blade 51 and the grinding wheel 4.

[0028] The spiral arc structure connects the scraping action with the material guiding action, giving the scraped material a clear outward movement direction. This reduces the possibility of material accumulating in front of the blade 51 and re-adhering to the side of the grinding wheel 4. When this structure is combined with the spiral guide groove 52 and the crushing teeth 53, it helps to keep the scraping channel unobstructed and promotes the return of the crushed fine particles to the mixing and grinding area.

[0029] See Figures 4-7 A floating blade holder assembly 6 is provided between the mounting bracket 3 and the blade body 51. The floating blade holder assembly 6 is used to drive the blade body 51 to automatically fit against the side of the grinding wheel 4 in order to compensate for the wear of the blade edge of the blade body 51.

[0030] It should be noted that the blade body 51 is in continuous contact with the side of the grinding wheel 4 during operation. As the cutting edge wears down with use, a gap may form between the blade body 51 and the side of the grinding wheel 4. The floating blade holder assembly 6 allows the blade body 51 to undergo compensatory displacement relative to the mounting bracket 3, enabling the blade body 51 to move closer to the side of the grinding wheel 4, thereby restoring the contact relationship between the arc-shaped main cutting surface 511 and the side of the grinding wheel 4, ensuring that subsequent scraping operations can continue. The floating blade holder assembly 6 transforms the installation state of the blade body 51 from a fixed position to a compensable position, allowing the blade body 51 to adjust its contact position according to the amount of cutting edge wear, directly reducing the scraping gap caused by cutting edge wear. This helps maintain the continuity of side shell cleaning, reduces the need for frequent machine stops to manually adjust the position of the blade body 51, and maintains the stability of the mixing and grinding process.

[0031] See Figures 5-7The floating cutter holder assembly 6 includes a connecting block 62 and a linear spring 63. The mounting frame 3 has a mounting groove 61 parallel to the axis of the grinding wheel 4, and the cutter body 51 is slidably connected to the mounting groove 61 via the connecting block 62. The linear spring 63 is located in the mounting groove 61, with one end connected to the mounting groove 61 and the other end connected to the connecting block 62. When the linear spring 63 is unrestrained, it can pull the cutter body 51 on the connecting block 62 towards the side of the grinding wheel 4. A cover plate 68 is provided on the mounting frame 3 at the position corresponding to the mounting groove 61, covering the mounting groove 61 to prevent impurities from entering. A sliding groove 64 is formed along the length of the mounting groove 61, and a slider 6 is slidably connected to the sliding groove 64. 5. The connecting block 62 is slidably connected to the slide groove 64 via the slider 65. It should be noted that when the connecting block 62 moves, it drives the slider 65 to slide along the slide groove 64. The extension direction of the slide groove 64 is consistent with the length direction of the mounting groove 61. Therefore, the slider 65 provides further guidance for the connecting block 62. After the tension of the linear spring 63 is transmitted to the cutter body 51 through the connecting block 62, the cutter body 51 approaches the side of the grinding wheel 4 along the path defined by the slide groove 64, reducing the deflection or lateral swing of the connecting block 62 in the mounting groove 61.

[0032] It should be noted that during assembly, the connecting block 62 is placed in the mounting groove 61, allowing the blade 51 to move along the connecting block 62 in a direction parallel to the axis of the grinding wheel 4. A linear spring 63 is connected between the mounting groove 61 and the connecting block 62. When the cutting edge of the blade 51 wears and a gap forms, the linear spring 63 applies a pulling force to the connecting block 62. The connecting block 62 moves along the mounting groove 61 and drives the blade 51 closer to the side of the grinding wheel 4 until the arc-shaped main cutting surface 511 re-establishes a contact, thus forming displacement compensation that changes with wear.

[0033] The mounting groove 61 limits the movement direction of the connecting block 62 and the blade 51. The linear spring 63 provides a continuous approaching action, so that the compensating movement will not deviate from the corresponding position on the side of the grinding wheel 4. This force and guiding relationship can stably compensate for the gap caused by the wear of the blade 51, thereby maintaining the scraping pressure and the material guiding path relatively stable, which is beneficial to reducing the situation of missed scraping and the re-accumulation of material shell.

[0034] See Figures 7-8 A damping block 66 is provided at the end of the mounting groove 61 away from the linear spring 63. The damping block 66 has a stepped shaft structure. Multiple annular grooves 67 are provided at the thin shaft end of the damping block 66, which are concentric with the axis of the thin shaft and are equally spaced. The connecting block 62 abuts against the thin shaft end. It can be understood that the thin shaft is relative to the thick shaft of the stepped shaft structure.

[0035] It should be noted that when the connecting block 62 moves away from the linear spring 63 in the mounting groove 61, there is a piece of material shell that is too tightly adhered and cannot be scraped off by the blade 51 in one go. At this time, the material shell will push the blade 51 away from the side of the grinding wheel 4 as the grinding wheel 4 rolls. At this time, the connecting block 62 first contacts the thin shaft end of the damping block 66. After the connecting block 62 continues to be subjected to force, the damping block 66 with the stepped shaft structure buffers and restricts its movement. Multiple annular grooves 67 form a structure that is axially spaced at the thin shaft end to cooperate with the damping block 66 to withstand the resistance of the connecting block 62, thereby reducing the direct collision when the connecting block 62 reaches the end of the stroke.

[0036] The damping block 66 is located at the moving end of the connecting block 62. It can buffer and limit the impact when the connecting block 62 has a large displacement, reducing the degree to which the impact is directly transmitted to the mounting frame 3, the blade body 51 and the grinding wheel 4. This structure is beneficial to protecting the sliding fit of the floating blade holder assembly 6, reducing the interference of vibration on the fit of the blade body 51, and maintaining the continuity of the mixing and grinding operation.

[0037] Example 2: The technical solution of this example differs from that of Example 1 in that: (See below) Figure 6 and Figure 9 The blade body 51 is equipped with an air curtain dustproof assembly 7, which includes an annular air curtain nozzle 71 disposed on the blade body 51. The blade body 51 is provided with an air inlet 72, one end of which is connected to an air source, and the other end is connected to the annular air curtain nozzle 71. The annular air curtain nozzle 71 has an annular pressure equalizing air chamber 73 and multiple inclined nozzles 74 evenly spaced around its periphery. The air inlet 72 communicates with the multiple inclined nozzles 74 through the annular pressure equalizing air chamber 73. The air ejected from the multiple inclined nozzles 74 forms a conical air curtain structure arranged along the length of the self-sharpening guide groove 54 of the cutting edge. It is understood that the air source is a compressed air tank, which is existing technology and will not be described in detail further.

[0038] It should be noted that when the equipment is mixing and scraping material, the air source is activated. Air enters the annular equalizing air chamber 73 through the air inlet 72 and is distributed circumferentially along the annular air curtain nozzle 71 within the annular equalizing air chamber 73. Subsequently, air is ejected from multiple inclined nozzles 74, forming a conical air curtain around the cutter body 51. When the cutter body 51 scrapes off the material and it is crushed by the crushing teeth 53, the conical air curtain applies a directional airflow to the generated fine particles, reducing the diffusion of particles towards the area where the self-sharpening guide groove 54 and the floating cutter holder assembly 6 are located.

[0039] The annular equalizing air chamber 73 enables the air input from the air inlet 72 to be distributed to multiple inclined nozzles 74. The inclined nozzles 74, which are evenly spaced around the circumference, together form a conical air curtain covering the working area of ​​the blade body 51. This air curtain can constrain the diffusion direction of fine particles during scraping and crushing, directly reducing the range of impurities entering the self-sharpening guide groove 54, the mounting groove 61, and the sliding connection parts. This helps to maintain the blade edge condition and floating compensation action, improve dust control, and reduce the frequency of cleaning and maintenance.

[0040] See Figures 1-3 and Figures 6-7 In this embodiment, a controller is provided on the frame 1, and a pressure sensor is provided in the slider 65. The pressure sensor is used to detect the pressure that the blade 51 bears when it is blocked by a hard block. A position sensor is provided in the mounting groove 61. The position sensor is used to detect the position of the connecting block 62 in the mounting groove 61. Both the pressure sensor and the displacement sensor are connected to the controller via signal control. It is understood that the pressure sensor, displacement sensor and controller are all existing technologies and will not be described in detail.

[0041] It should be noted that when the blade body 51 is scraping material normally, the connecting block 62 remains in position or changes position within the mounting groove 61, following the fit of the blade body 51. When the blade body 51 is blocked by a hard block, the blocking force is transmitted through the blade body 51 and the connecting block 62 to the slider 65, and the pressure sensor detects the corresponding pressure. At the same time, the position sensor detects the position of the connecting block 62 within the mounting groove 61, and the relevant detection signals are transmitted to the controller so as to make a corresponding judgment on the force on the blade body 51 and the displacement state of the connecting block 62.

[0042] Pressure detection and position detection reflect the degree of obstruction of the cutter body 51 and the movement position of the connecting block 62, respectively. After receiving the two types of signals, the controller can provide a basis for identifying abnormal conditions. This makes it easier for operators to check the obstruction of hard blocks, the contact of the cutter body 51, or the movement of the floating cutter assembly 6 in a timely manner, thereby reducing the possibility of abnormal forces continuously acting on the cutter body 51 and the grinding wheel 4, and helping to maintain processing quality and continuous operation of the equipment.

[0043] See Figures 1-10 When using the aforementioned raw material mixing mill based on refractory material processing for raw material mixing, the process specifically includes material mixing and side cleaning steps. During material mixing, material is poured into the storage silo 2, and the mounting frame 3 rotates around the axis of the storage silo 2, causing a pair of grinding wheels 4 on the mounting frame 3 to roll inside the storage silo 2. The material is squeezed by the circumferential surface of the grinding wheels 4 and the bottom of the storage silo 2, thus achieving material mixing.

[0044] During side cleaning, as the grinding wheel 4 rolls, the material shell on the side end face of the grinding wheel 4 is scraped off by the arc-shaped main cutting edge 511, and the material shell at the hub connection position of the grinding wheel 4 is scraped off by the right-angle scraping edge 512. The scraped material shell is discharged outward along the spiral guide groove 52 to the outside of the side of the grinding wheel 4, and is crushed into fine particles by the cooperation of multiple crushing teeth 53 during the discharge process. After the cutting edge of the blade body 51 wears, the floating blade holder assembly 6 drives the blade body 51 to move closer to the side of the grinding wheel 4, and the air curtain dustproof assembly 7 forms a conical air curtain arranged along the length direction of the cutting edge from the sharpening guide groove 54 to complete the continuous side cleaning.

[0045] It should be noted that the material mixing and grinding step involves a pair of grinding wheels 4 continuously squeezing and turning the material in the storage bin 2. The side cleaning step utilizes the arc-shaped main cutting edge 511, the right-angle scraper 512, the spiral guide groove 52, and the crushing teeth 53 to sequentially complete the scraping, outward discharge, and crushing of the material shell. The two steps work together continuously during the rolling of the grinding wheels 4, which can reduce the accumulation of material shell on the side and the mixing of large lumps of material into the mixture. This helps to maintain the uniformity of material mixing, the dynamic balance of the grinding wheels 4, and the stability of the mixing and grinding operation.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A raw material mixing and grinding mill based on refractory material processing, comprising a frame (1), a storage bin (2) provided on the frame (1), a mounting frame (3) provided inside the storage bin (2), and a pair of grinding wheels (4) mounted on the mounting frame (3), characterized in that, The mounting bracket (3) is provided with a spiral scraping assembly (5), the spiral scraping assembly (5) comprising: The blade (51) is disposed on the side of the grinding wheel (4); the blade (51) includes an arc-shaped main cutting surface (511) and a right-angle scraping blade (512), the arc-shaped main cutting surface (511) and the right-angle scraping blade (512) are integrally formed at a right angle; the arc-shaped main cutting surface (511) is fitted to the side of the grinding wheel (4), and the right-angle scraping blade (512) is fitted to the grinding surface of the grinding wheel (4); Multiple crushing teeth (53) are provided on the blade body (51), and the multiple crushing teeth (53) are provided in the spiral guide groove (52). When the grinding wheel (4) rotates, the material scraped out by the blade body (51) is discharged to the outside of the side of the grinding wheel (4) through the spiral guide groove (52) and crushed by the crushing teeth (53). The blade body (51) has a self-sharpening guide groove (54) on the back of the arc-shaped main cutting edge (511). The self-sharpening guide groove (54) has a V-shaped cross-section and is arranged along the entire length of the arc-shaped main cutting edge (511). The groove depth of the self-sharpening guide groove (54) gradually increases along the direction of blade wear, and the groove wall of the self-sharpening guide groove (54) forms a fixed wedge angle with the arc-shaped main cutting edge (511).

2. The raw material mixing mill based on refractory material processing according to claim 1, characterized in that, The blade (51) has a spiral arc structure, allowing the material scraped out by the blade (51) to be discharged along the spiral arc structure to the outside of the side of the grinding wheel (4).

3. The raw material mixing mill based on refractory material processing according to claim 1, characterized in that, A floating blade holder assembly (6) is provided between the mounting bracket (3) and the blade body (51); the floating blade holder assembly (6) is used to drive the blade body (51) to automatically fit against the side of the grinding wheel (4) to compensate for the wear of the blade edge of the blade body (51).

4. A raw material mixing mill based on refractory material processing according to claim 3, characterized in that, The floating cutter assembly (6) includes a connecting block (62) and a linear spring (63); the mounting bracket (3) has a mounting groove (61) arranged parallel to the axis of the grinding wheel (4), the cutter body (51) is slidably connected to the mounting groove (61) through the connecting block (62), the linear spring (63) is set in the mounting groove (61), and one end of the linear spring (63) is connected to the mounting groove (61), and the other end of the linear spring (63) is connected to the connecting block (62); when the linear spring (63) loses its restraint, it is allowed to pull the cutter body (51) on the connecting block (62) closer to the side of the grinding wheel (4).

5. A raw material mixing mill based on refractory material processing according to claim 4, characterized in that, The mounting groove (61) has a sliding groove (64) along its length direction. A slider (65) is slidably connected to the sliding groove (64). The connecting block (62) is slidably connected to the sliding groove (64) through the slider (65).

6. A raw material mixing mill based on refractory material processing according to claim 4, characterized in that, A damping block (66) is provided at one end of the mounting groove (61) away from the linear spring (63). The damping block (66) has a stepped shaft structure. Multiple annular grooves (67) are provided at the thin shaft end of the damping block (66) and are arranged concentrically and at equal intervals with the thin shaft axis. The connecting block (62) abuts against the thin shaft end.

7. A raw material mixing mill based on refractory material processing according to claim 4, characterized in that, A cover plate (68) is provided on the mounting bracket (3) at the position corresponding to the mounting groove (61); the cover plate (68) is used to cover the mounting groove (61) to prevent impurities from entering.

8. A raw material mixing mill based on refractory material processing according to claim 1, characterized in that, The blade body (51) is provided with an air curtain dustproof component (7); the air curtain dustproof component (7) includes an annular air curtain nozzle (71); the annular air curtain nozzle (71) is provided on the blade body (51), the blade body (51) is provided with an air inlet (72), one end of the air inlet (72) is connected to an air source, and the other end of the air inlet (72) is connected to the annular air curtain nozzle (71); the annular air curtain nozzle (71) is provided with an annular equalizing air chamber (73) and multiple inclined spray holes (74) spaced equally around the annular air curtain nozzle (71), and one end of the air inlet (72) is connected to the multiple inclined spray holes (74) through the annular equalizing air chamber (73); the air ejected from the multiple inclined spray holes (74) forms a conical air curtain structure, and the conical air curtain is arranged along the length direction of the cutting edge self-sharpening guide groove (54).

9. A raw material mixing mill based on refractory material processing according to claim 4, characterized in that, A controller is provided on the frame (1); a pressure sensor is provided in the slider (65) and is used to detect the pressure borne by the blade (51) when it is blocked by a hard block; a position sensor is provided in the mounting groove (61) and is used to detect the position of the connecting block (62) in the mounting groove (61); the pressure sensor and the displacement sensor are both connected to the controller via signal control.

10. A method for mixing and grinding raw materials based on refractory material processing, characterized in that, The raw material mixing and grinding mill based on refractory material processing, as described in any one of claims 1-9, specifically includes the following steps: Step 1, material mixing and grinding: After the material is discharged into the storage bin (2), the mounting frame (3) rotates around the axis of the storage bin (2), which drives a pair of grinding wheels (4) on the mounting frame (3) to roll in the storage bin (2). The material is squeezed by the circumferential surface of the grinding wheels (4) and the bottom of the storage bin (2), thus achieving material mixing and grinding. Step 2, Side Cleaning: After the material has been mixed and ground for a long time, the spiral scraping component (5) cleans the material adhering to the side end face of the grinding wheel (4) and the hub connection part, which continuously accumulates and forms a hard shell. That is, as the grinding wheel (4) rolls, the arc-shaped main blade (511) scrapes off the shell on the side end face of the grinding wheel (4), and with the cooperation of the right-angle scraper (512), the shell at the dead corner of the hub connection of the grinding wheel (4) is scraped off, and the scraped shell is discharged to the outside of the side of the grinding wheel (4) along the spiral guide groove (52). During the discharge process, the shell is crushed into fine particles by the cooperation of multiple crushing teeth (53).

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