A fly ash brick making machine dedicated to fly ash smelting

Abstract

The present application relates to the technical field of brick making machine, and disclose a fly ash brick making machine specially used for fly ash smelting, including frame, the outer surface of frame is installed with pressing unit, the top of frame is installed with hopper, the top of frame is installed with power unit, the bottom of power unit is installed with mold frame, the lower portion of power unit is provided with pressing and twisting assembly for preventing fly ash raw materials uneven distribution, thereby leading to product quality difference, pressing and twisting assembly includes two driving members, two pressing rollers, a plurality of gears and a plurality of fixed racks, in view of the deficiency of the existing fly ash brick making machine in fly ash discharging and smoothing link, the present application introduces the design of driving member driving pressing roller movement, realizes the automation and high efficiency of raw material smoothing process, and the pressing roller as a key component, can roll the raw material, and because the direction of the two pressing rollers is opposite, the above design not only improves the smoothing effect, but also ensures the uniform distribution of raw materials in the mold frame.

Description

Technical Field

[0001] This invention relates to the field of brick-making machine technology, specifically to a fly ash brick-making machine specifically designed for fly ash smelting. Background Technology

[0002] The fly ash brick making machine is specifically designed to process fly ash generated from the incineration of municipal solid waste. It is of great significance in terms of environmental protection and resource recycling. It can mix the fly ash after water washing and filtration with hazardous wastes such as slag, electroplating sludge, and photovoltaic glass powder, and then press them into bricks. The bricks are then put into a melting furnace for melting after being left to stand and control the water content. This process not only facilitates the subsequent transportation and storage of materials, but also allows for accurate metering when the materials are put into the melting furnace.

[0003] Moreover, bricks of uniform shape are more likely to form a uniform molten substance during melting and processing, which helps to improve the quality of the final product and achieve efficient resource utilization. Through this process, fly ash brick making machines have achieved effective treatment and resource utilization of fly ash, playing a key role in the fields of environmental protection and resource recycling.

[0004] However, existing fly ash brick making machines still have some problems: First, although fly ash brick making machines, as an innovative environmental protection equipment, have shown great potential in promoting the resource utilization of fly ash from municipal solid waste incineration, their existing technologies still have significant shortcomings in the fly ash feeding and leveling processes. This problem cannot be ignored. Specifically, although the traditional manual leveling method can ensure the consistency of pressing, it is inefficient and has high labor costs. In order to overcome this bottleneck, existing technologies attempt to introduce automation. By designing a mold frame to receive the fly ash feeding, the material is automatically leveled by the reciprocating motion of the mold frame itself during the process of pushing it under the press head.

[0005] From the perspective of production efficiency, although the automated smoothing process aims to reduce manual intervention and improve the level of production automation, the reciprocating motion of the mold frame inevitably prolongs the preparation cycle of a single brick blank, thereby delaying the efficiency of the pressing head during the movement of the mold frame.

[0006] Secondly, due to the fluidity and looseness of fly ash raw materials, coupled with the effects of gravity, inertia, and other forces during the pushing process, the distribution of raw materials within the mold frame is easily unbalanced. At this time, although the reciprocating motion of the mold frame attempts to flatten the raw materials through pushing and pulling forces, these forces often fail to achieve uniformity and instead exacerbate the uneven distribution of raw materials. Especially in the central area of ​​the mold frame, where the pushing and pulling forces converge, excessive accumulation often occurs, leading to uneven density within the brick blank. This, in turn, affects the strength of the finished brick and ultimately causes problems such as cracking during the subsequent static water control treatment.

[0007] Secondly, during the raw material feeding stage, fly ash is inherently sticky and easily clumps due to the continuous pressure of gravity from the upper raw materials. Currently, the industry commonly uses vibrating motors to address this issue. Vibrating motors generate high-frequency vibrations to break large fly ash clumps into smaller pieces. However, this method has significant limitations; it can only change the size of the clumps but cannot fundamentally eliminate the clumping phenomenon.

[0008] These residual small lumps will have an adverse effect on the quality of the product in the subsequent brick pressing process. Although uniform pressure is applied during the brick pressing process, the presence of small lumps disrupts the uniformity of the raw materials, which causes local deviations in the pressure transmission process, resulting in uneven stress on the brick when it is pressed.

[0009] This uneven stress distribution becomes even more problematic during the subsequent melting process. Because the density of the brick blank is inconsistent, heat transfer is also uneven during melting. The denser agglomerated areas heat up slowly, while the less dense areas heat up quickly. This makes it difficult for the entire brick blank to reach the melting state simultaneously during melting, ultimately resulting in an uneven formation of the molten material and greatly affecting the melting effect.

[0010] Therefore, this invention proposes a fly ash brick-making machine specifically for fly ash smelting. Summary of the Invention

[0011] The purpose of this invention is to provide a fly ash brick-making machine specifically for fly ash smelting, so as to solve the problems mentioned in the background art.

[0012] To achieve the above objectives, the present invention provides the following technical solution: a fly ash brick-making machine specifically for fly ash smelting, comprising a frame, a pressing unit installed on the outer surface of the frame, a hopper installed on the top of the frame, a power unit installed on the top of the frame, a mold frame installed at the bottom of the power unit, and a pressing and kneading assembly provided below the power unit to prevent uneven distribution of fly ash raw materials, which would result in different product quality. The pressing and kneading assembly includes two driving components, two pressing rollers, several gears, and several fixed racks.

[0013] The driving component is used to drive the pressing roller to move. The pressing roller is used to press the fly ash material flat by its own movement and gravity. The gear and the fixed rack are meshed with each other. The gear and the fixed rack are used to drive the pressing roller to rotate through their meshing relationship, thereby improving the pressing efficiency and making the fly ash material evenly distributed.

[0014] Preferably, the two drive components are symmetrically installed on both sides of the mold frame, the two pressing rollers are disposed inside the mold frame, a plurality of gears are arranged in a rectangular equidistant pattern and fixedly connected to the outer surface of the pressing rollers, and a plurality of fixed racks are arranged in a rectangular equidistant pattern and fixedly connected to the inner wall of the mold frame, with the fixed racks on the side closer to the hopper disposed below the gears, and the fixed racks on the side farther from the hopper disposed above the gears.

[0015] Preferably, the pressing and rubbing assembly further includes several force transmission plates, which are arranged in a rectangular and equidistant pattern and fixedly connected to the outer surface of the driving component. The pressing rollers are rotatably connected to the bottom of the force transmission plates. Limiting grooves are symmetrically opened on the inner wall of the mold frame. The gears are fixedly connected to a protrusion on the side away from the pressing rollers, and the protrusions on the outer surface of the gears are slidably connected to the inside of the limiting grooves.

[0016] Preferably, each of the pressing rollers is fixedly connected to the bottom of an axe strip, which is generally in the shape of an arc groove, but its sides are recessed inward.

[0017] Preferably, each of the driving components includes a drive motor, a positive and negative lead screw, two rotating seats, and two nut plates. The drive motor is mounted on the outer surface of the mold frame, the positive and negative lead screw is mounted on the outer surface of the output shaft of the drive motor, the two rotating seats are fixedly connected to the outer surface of the mold frame, the positive and negative lead screw is rotatably connected to the inside of the two rotating seats, and the two nut plates are symmetrically threaded to the outer surface of the positive and negative lead screw, and both nut plates are slidably connected to the top of the mold frame.

[0018] Preferably, the force transmission plate is fixedly connected to the outer surface of the nut plate.

[0019] Preferably, a pneumatic sealing unit is provided below the hopper to control the feeding of raw materials inside the hopper, and a transmission unit is installed on the outside of the hopper to feed raw materials. The pneumatic sealing unit, transmission unit, power unit and pressing unit are all electrically controlled to start and stop by an external controller.

[0020] Preferably, the inner top wall of the frame is provided with a dual crushing assembly. The dual crushing assembly includes a fixed frame fixedly connected to the inner top wall of the frame. The outer surface of the fixed frame is equipped with buffer members arranged in a rectangular equidistant pattern. A screening plate is installed at the bottom of the buffer members. The screening plate is inclined.

[0021] Preferably, a vibrating element is installed on the bottom side of the fixed frame to drive the screening plate to vibrate. The screening plate has a cavity inside and a number of screen holes are opened through the surface of the screening plate. The screen holes on the upper and lower surfaces of the screening plate are staggered. A crushing channel is fixedly connected to the side of the screening plate near the pressing unit. The crushing channel can be connected to an external receiving container.

[0022] Preferably, a plurality of crushing rings are fixedly connected inside the cavity of the screening plate, and a plurality of crushing beads are placed inside each crushing ring. The upper and lower ends of each crushing bead are arc-shaped protrusions, and the middle part of the crushing bead is a circular protrusion.

[0023] Preferably, the pressing unit includes a main unit, a mold, a pressing head, upper and lower templates, and a lifting platform.

[0024] Preferably, the pneumatic sealing unit includes a sealing cylinder and a baffle.

[0025] Preferably, the power unit includes a support arm, an upper cylinder, and a lower cylinder.

[0026] Preferably, the buffer includes an L-shaped support plate, a spring, and a positioning seat.

[0027] Preferably, the vibrating element includes a motor and a cam.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In view of the shortcomings of existing fly ash brick making machines in the fly ash feeding and smoothing process, the present invention introduces a design that drives the pressing roller to move, thereby realizing the automation and efficiency of the raw material smoothing process. As a key component, the pressing roller can roll the raw material. Since the two pressing rollers are in opposite directions, this design not only deepens the smoothing effect, but also ensures the uniform distribution of the raw material in the mold frame. At the same time, under the meshing relationship of gears and fixed racks, the two pressing rollers will also rotate during the movement, forming a rubbing effect. Thus, the raw material is quickly and smoothly smoothed during the process of the power unit pushing the raw material. This improvement significantly improves production efficiency, reduces labor costs, and also helps to improve the quality of the bricks after air drying, effectively ensuring that the bricks are not easily broken during the air drying process and subsequent use.

[0029] Compared to traditional manual smoothing methods and existing automated smoothing technologies, manual smoothing, while ensuring consistent pressing, is inefficient and costly. While existing automated smoothing technologies reduce human intervention, the reciprocating motion of the mold frame prolongs the preparation cycle of a single brick blank, affecting production efficiency. This invention achieves rapid and uniform smoothing of raw materials by driving the movement and rotation of the pressing roller through a drive component. This not only improves production efficiency but also ensures the quality of the finished product, representing a significant breakthrough in existing technologies.

[0030] The axe blade is shaped like an arc groove, but its sides are concave. This structure allows the raw material to be pushed to the other side by the concave groove during the rotation of the axe blade, thus effectively preventing excessive accumulation in one part.

[0031] Among them, the sliding connection between the limiting groove and the protrusion ensures the stability and accuracy of the gear during movement, thereby further improving the uniformity of the raw material smoothing.

[0032] In summary, this improved technology significantly enhances the production efficiency and finished product quality of fly ash brick making machines by introducing a drive component to move the pressing roller, fixing the axe strip at the bottom of the pressing roller, and creating a limiting groove on the inner wall of the mold frame. From a cost perspective, since the pressing and rubbing components are mostly standard parts, manufacturing, production, and maintenance are relatively easy, reducing overall operating costs. At the same time, this improved technology also shortens the preparation cycle of a single brick blank, improving production efficiency and laying a solid foundation for the widespread application and further promotion of fly ash brick making machines.

[0033] Therefore, this improved technology not only has significant economic and social benefits, but also provides new ideas and directions for the future development of fly ash brick making machines.

[0034] 2. To address the issue of fly ash raw material agglomeration during the feeding stage, this invention utilizes a vibrating component to drive the screening plate to vibrate, combined with the staggered screening effect of the screen holes, to achieve effective crushing and classification of the raw materials. During this process, the crushed raw materials enter the cavity inside the screening plate, while the slightly larger portions are guided by the tilting of the screening plate into the crushing channel to await further processing. This improvement effectively enhances the uniformity of the raw materials, greatly reduces agglomeration, and to a certain extent avoids pressure transmission deviations caused by agglomeration, preventing uneven deformation of the brick blanks during pressing. More importantly, this improvement provides higher-quality brick blanks for the subsequent smelting stage, ensuring uniform heat transfer during smelting, allowing the brick blanks to reach a molten state simultaneously, thereby forming a uniform molten substance. This lays a solid foundation for improving the quality of the final product and achieving efficient smelting.

[0035] Compared to current techniques that rely on vibrating motors to disperse lumps, this invention has a more significant advantage. Vibrating motors can only break large lumps into smaller pieces, but cannot eliminate the lumping phenomenon. In contrast, the dual crushing assembly, through the vibration of the vibrating components driving the vibration of the screening plate and the misalignment of the screen holes, not only crushes the raw materials but also classifies them, thus more thoroughly solving the lumping problem. This improvement not only increases production efficiency but also reduces problems such as uneven melting caused by lumps.

[0036] Specifically, under the vibration of the vibrating component, the crushing beads can vibrate inside the crushing ring and collide with the incoming raw materials, thereby breaking up their agglomerated state. This collision effect not only further eliminates the agglomeration in the raw materials, but also improves the looseness and fluidity of the raw materials, providing better raw material conditions for the subsequent brick pressing process.

[0037] Among them, because the upper and lower ends of the crushing beads are arc-shaped protrusions, they can collide with the inside of the sieve holes during their movement. This collision not only helps to break up the lumps in the raw materials, but also prevents the sieve holes from being blocked by the accumulation of raw materials.

[0038] Specifically, setting the screening plate to an inclined state allows the raw material to move more tending to the inclined direction under the action of gravity, thereby avoiding the problem of excessive accumulation of raw material on the force-generating side when the power unit pushes the raw material.

[0039] In summary, this invention significantly improves the processing efficiency and product quality of fly ash brick making machines during the raw material feeding stage through various optimization measures, such as driving the screen plate to vibrate with a vibrating component, misaligning the screen holes for screening, colliding and breaking up the crushing ring and crushing beads, and the inclined design of the screen plate. This improvement not only solves the problem of raw materials easily agglomerating, but also improves the uniformity of bricks in the subsequent melting process. Attached Figure Description

[0040] Figure 1 This is a frontal three-dimensional schematic diagram of the main structure of the present invention.

[0041] Figure 2 This is a rear-view three-dimensional schematic diagram of the main structure of the present invention.

[0042] Figure 3 For the present invention Figure 2 Enlarged 3D schematic diagram of the structure at point A.

[0043] Figure 4 This is a cross-sectional perspective view of the pressing and rubbing assembly of the present invention.

[0044] Figure 5 For the present invention Figure 4 Enlarged 3D schematic diagram of the structure at point B.

[0045] Figure 6 For the present invention Figure 5 Enlarged 3D schematic diagram of the structure at point C.

[0046] Figure 7 This is a partial cross-sectional perspective view of the dual crushing component of the present invention.

[0047] Figure 8 For the present invention Figure 7 Enlarged 3D schematic diagram of the structure at point D.

[0048] Figure 9 This is a partial cross-sectional perspective view of the dual crushing component of the present invention from another angle.

[0049] Figure 10 For the present invention Figure 9 Enlarged 3D schematic diagram of the structure at point E in the middle.

[0050] Figure 11 This is a three-dimensional schematic diagram of the axe blade of the present invention.

[0051] In the diagram: 11. Frame; 12. Pressing unit; 13. Hopper; 14. Power unit; 141. Mold frame.

[0052] 2. Pressing and rubbing assembly; 21. Drive component; 22. Force transmission plate; 23. Pressing roller; 24. Limiting groove; 25. Gear; 26. Fixed rack; 27. Axe bar.

[0053] 3. Dual crushing assembly; 31. Fixing frame; 32. Buffer; 33. Screening plate; 34. Vibrating component; 35. Screen holes; 36. Crushing ring; 37. Crushing beads; 38. Crushing channel. Detailed Implementation

[0054] 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 protection scope of the present invention.

[0055] It should be noted that the pressing unit 12 includes a main unit, a mold, a pressing head, upper and lower templates, and a lifting platform. The main unit is installed on the outer surface of the frame 11, the pressing head is installed below the main unit, the mold is installed on the main unit, and the upper and lower templates are installed on the upper and lower sides of the mold. Driven by the main unit, it applies pressure to the raw material, while the pressing head moves up and down within the mold to complete the pressing action. The lifting platform is installed on the bottom side of the frame 11, and its own lifting mechanism facilitates the addition of raw materials and the removal of brick blanks. The pressing unit 12 has the same structure as the pressing section of existing brick making machines. The pneumatic sealing unit includes a sealing cylinder and a baffle. The sealing cylinder is fixedly connected to the outer surface of the frame 11, and the baffle is fixedly connected to the output shaft of the sealing cylinder. The sealing cylinder drives the baffle to seal the bottom of the hopper 13. The power unit 14 includes a support arm, an upper cylinder, and a lower cylinder. The support arm is rotatably connected to the outer surface of the frame 11. The upper cylinder is fixedly connected to the outer surface of the frame 11, and its output shaft is rotatably connected to the outer surface of the support arm. The two ends of the lower cylinder are rotatably connected to the outer surface of the mold frame 141 and the bottom of the support arm, respectively. Through the coordinated work of the upper and lower cylinders, the mold frame 141 is accurately moved and positioned. The power unit 14 has the same structure as the power part in the existing brick making machine. Therefore, the structure and working principle of the pressing unit 12, the power unit 14, and the pneumatic sealing unit are existing technologies and will not be described in detail hereafter.

[0056] Example 1, please refer to as follows Figures 1 to 6 As shown, a fly ash brick-making machine specifically for fly ash smelting includes a frame 11, a pressing unit 12 installed on the outer surface of the frame 11, a hopper 13 installed on the top of the frame 11, a power unit 14 installed on the top of the frame 11, a mold frame 141 installed at the bottom of the power unit 14, and a pressing and kneading assembly 2 for preventing uneven distribution of fly ash raw materials, which would result in different product quality, is provided below the power unit 14. The pressing and kneading assembly 2 includes two driving components 21, two pressing rollers 23, several gears 25, and several fixed racks 26.

[0057] The driving component 21 is used to drive the pressing roller 23 to move. The pressing roller 23 is used to press the fly ash material flat by its own movement and gravity. The gear 25 and the fixed rack 26 are meshed with each other. The gear 25 and the fixed rack 26 are used to drive the pressing roller 23 to rotate by their meshing relationship, thereby improving the pressing efficiency and making the fly ash material evenly distributed.

[0058] Please refer to the example below. Figures 4 to 6 as well as Figure 11As shown, two drive components 21 are symmetrically installed on both sides of the mold frame 141, two pressing rollers 23 are disposed inside the mold frame 141, several gears 25 are arranged in a rectangular equidistant pattern and fixedly connected to the outer surface of the pressing rollers 23, and several fixed racks 26 are arranged in a rectangular equidistant pattern and fixedly connected to the inner wall of the mold frame 141. The fixed racks 26 on the side closer to the hopper 13 are disposed below the gears 25, while the fixed racks 26 on the side farther from the hopper 13 are disposed above the gears 25. The pressing and rubbing assembly 2 also includes several Several force transmission plates 22 are arranged in a rectangular shape and fixedly connected to the outer surface of the drive component 21. The pressure rollers 23 are rotatably connected to the bottom of the force transmission plates 22. Limiting grooves 24 are symmetrically opened on the inner wall of the mold frame 141. The gears 25 are fixedly connected to the side away from the pressure rollers 23, and the protrusions on the outer surface of the gears 25 are slidably connected to the inside of the limiting grooves 24. The bottom of each pressure roller 23 is fixedly connected to an axe 27. The axe 27 is in the shape of an arc groove, but its side is concave inward.

[0059] It should be noted that each drive component 21 includes a drive motor, a positive and negative lead screw, two rotating seats, and two nut plates. The drive motor is mounted on the outer surface of the mold frame 141, the positive and negative lead screw is mounted on the outer surface of the drive motor output shaft, the two rotating seats are fixedly connected to the outer surface of the mold frame 141, the positive and negative lead screw is rotatably connected to the inside of the two rotating seats, the two nut plates are symmetrically threaded to the outer surface of the positive and negative lead screw, and both nut plates are slidably connected to the top of the mold frame 141. The force transmission plate 22 is fixedly connected to the outer surface of the nut plates. A pneumatic sealing unit is provided below the hopper 13 to control the feeding of raw materials inside the hopper 13. A transmission unit, specifically a belt conveyor, is installed on the outside of the hopper 13 to feed raw materials. The pneumatic sealing unit, transmission unit, power unit 14, and pressing unit 12 are all electrically controlled by an external controller to start and stop.

[0060] Specifically, the operator starts the electrical system of the entire brick-making machine through an external controller to ensure that all equipment is in standby mode. Then, the washed and blended fly ash raw material is placed on the belt conveyor. The belt conveyor continuously and evenly transports the raw material into the hopper 13. When the raw material is successfully fed into the hopper 13, the pneumatic sealing unit immediately responds to the command of the external controller, the sealing cylinder is activated and the baffle is released from its blocking effect. At this time, the raw material will fall into the mold frame 141.

[0061] Next, the operator uses an external controller to electrically control the power unit 14 and the drive unit 21 to start simultaneously. The power unit 14 will drive the mold frame 141 to move smoothly and precisely, so that the mold frame 141 moves towards the side closer to the pressing unit 12 to the predetermined position. At the same time, the drive motor in the drive unit 21 starts.

[0062] The drive motors drive their respective positive and negative lead screws to rotate. Due to the inherent characteristics of the positive and negative lead screws, the two nut plates will continuously move towards the center of the mold frame 141 under the engagement of the threads. During this process, the nut plates drive the force transmission plate 22 fixed on its outer surface to move synchronously. In turn, the force transmission plate 22 drives the pressing roller 23 connected to it to move, so as to achieve the initial rolling effect and initially compact the fly ash raw material.

[0063] Most importantly, the movement of the pressing roller 23 will cause the gear 25 fixedly connected to its outer surface to move together. Since the gear 25 and the fixed rack 26 fixedly connected to the inner wall of the mold frame 141 mesh with each other, this meshing relationship causes the pressing roller 23 to rotate while moving. This design of rotating and moving at the same time greatly improves the pressing efficiency and makes the fly ash raw material more evenly distributed in the mold.

[0064] Specifically, each pressing roller 23 is fixedly connected to an axe 27 at its bottom. Based on the arc-shaped groove and inwardly concave side of the axe 27, the axe 27 pushes the raw material from the corner or bottom to the other side through the concave area. Since the fixed toothed rack 26 is asymmetrically arranged, that is, the fixed toothed rack 26 on the side closer to the hopper 13 is set below the gear 25, while the fixed toothed rack 26 on the side farther from the hopper 13 is set above the gear 25, the pressing rollers 23 on both sides rotate in the same direction. Similarly, the axe 27 and the pressing roller 23 rotate in the same direction, and their movement forms a rubbing effect. During the process of the raw material being pushed, due to its own mass and the pushing force, the raw material tends to accumulate on the side of the force point. However, through the rubbing motion of the two pressing rollers 23, this situation can be effectively improved, avoiding local accumulation of raw material in the mold and ensuring the uniformity and consistency of the product.

[0065] Furthermore, it is worth noting that the pressing roller 23 moves simultaneously with the power unit 14, which means that the uniform distribution and pressing of the raw material are completed in the same workflow without additional time, thereby improving production efficiency. Finally, after the uniform distribution and initial compaction by the pressing and rubbing assembly 2, the raw material is pushed to the bottom of the pressing unit 12. At this time, the external controller electrically controls the drive motor to start and reset, that is, the forward and reverse screws reverse, driving the nut plate and the force transmission plate 22 back to the initial position. At the same time, the pressing roller 23 also stops rotating and moving. During this process, the pressing unit 12 uses its own pressure to finally press the raw material to form fly ash bricks.

[0066] It should be noted that when the drive motor drives the pressing and rubbing assembly 2 to reset, this step can be accelerated by increasing the power of the drive motor, thereby preventing the pressing unit 12 from accidentally pressing the pressing and rubbing assembly 2 parts.

[0067] Example 2, based on Example 1, please refer to the following... Figure 7 and Figure 8 As shown, a dual crushing assembly 3 is provided on the top inner wall of the frame 11. The dual crushing assembly 3 includes a fixed frame 31 fixedly connected to the top inner wall of the frame 11. Buffer members 32 are installed in a rectangular equidistant arrangement on the outer surface of the fixed frame 31. A screening plate 33 is installed at the bottom of the buffer member 32. The screening plate 33 is inclined.

[0068] Please refer to the example below. Figures 7 to 10 As shown, a vibrating element 34 is installed on the bottom side of the fixed frame 31 to drive the screening plate 33 to vibrate. The screening plate 33 has a cavity inside and several screen holes 35 are opened through the surface of the screening plate 33. The screen holes 35 on the upper and lower surfaces of the screening plate 33 are staggered. A crushing channel 38 is fixedly connected to the side of the screening plate 33 near the pressing unit 12. The crushing channel 38 can be connected to the external receiving container. Several crushing rings 36 are fixedly connected inside the cavity of the screening plate 33. Several crushing beads 37 are placed inside each crushing ring 36. The upper and lower ends of each crushing bead 37 are arc-shaped protrusions, and the middle part of the crushing bead 37 is a circular protrusion.

[0069] It should be noted that the buffer 32 includes an L-shaped support plate, a spring, and a positioning seat. The L-shaped support plate is fixedly connected to the top of the fixed frame 31, the spring is fixedly connected to the bottom of the L-shaped support plate, and the positioning seat is fixedly connected between the spring and the screening plate 33. The vibrating component 34 includes a motor and a cam. The motor is installed at the bottom of the fixed frame 31, and the cam is installed on the output shaft of the motor. The cam vibrates by rotating and abutting against the screening plate 33. At the same time, the vibrating component 34 is electrically controlled to start and stop by an external controller.

[0070] Specifically, based on Example 1, when the raw material is put into the mold frame 141 through the pneumatic sealing unit, the operator can simultaneously start the motor through an external controller. The motor will drive the cam to rotate, thereby causing the vibrating screen plate 33 to start vibrating.

[0071] The raw material first falls onto the upper surface of the screening plate 33. Under continuous vibration, the clumps are effectively broken up. Large pieces of raw material that cannot be broken up enter the crushing channel 38 under the guidance of vibration and the tilt angle of the screening plate 33. One side of the crushing channel 38 is connected to the external receiving container, and the large pieces of raw material are smoothly discharged from the system, avoiding their impact on the subsequent pressing process.

[0072] The crushed raw materials pass through the sieve holes 35 into the cavity of the sieve plate 33. Here, the raw materials meet the crushing ring 36 and the crushing beads 37 inside the cavity. The crushing beads 37 have rounded convex shapes at both ends and a circular convex shape in the middle. This design increases the contact area between the raw materials and the crushing beads 37, improving the crushing efficiency. During the process of sieving in the sieve plate 33, the crushing beads 37 inside the plate also move, further crushing the raw materials entering the cavity to ensure the uniformity of the raw material particles, thereby preventing small pieces of raw materials from affecting the quality of the bricks.

[0073] Finally, the raw material will fall into the mold frame 141 below through the bottom screen 35. Due to the tilt angle of the screen plate 33 itself, the raw material will be guided by a slant, so that it will not accumulate too much in the mold frame 141 on the side away from the pressing unit 12.

[0074] It should be noted that, since the upper and lower ends of the crushing bead 37 are rounded and convex, during the disordered vibration of the crushing bead 37, the convex shape of the upper and lower ends can cooperate with the inside of the sieve hole 35 to prevent the sieve hole 35 from clogging itself.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0076] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fly ash brick-making machine specifically for fly ash smelting, comprising a frame (11), a pressing unit (12) mounted on the outer surface of the frame (11), a hopper (13) mounted on the top of the frame (11), a power unit (14) mounted on the top of the frame (11), and a mold frame (141) mounted on the bottom of the power unit (14), characterized in that: Below the power unit (14) is a pressing and rubbing assembly (2) for preventing uneven distribution of fly ash raw materials, which would result in different product quality. The pressing and rubbing assembly (2) includes two driving components (21), two pressing rollers (23), several gears (25), and several fixed racks (26). The driving components (21) are used to drive the pressing rollers (23) to move. The pressing rollers (23) are used to press the fly ash raw materials flat by their own movement and gravity. The gears (25) and the fixed racks (26) are meshed with each other. The gears (25) and the fixed racks (26) are used to drive the pressing rollers (23) to rotate by their meshing relationship, thereby improving the pressing efficiency and making the fly ash raw materials evenly distributed. Two drive components (21) are symmetrically installed on both sides of the mold frame (141), two pressing rollers (23) are disposed inside the mold frame (141), a number of gears (25) are arranged in a rectangular equidistant pattern and fixedly connected to the outer surface of the pressing rollers (23), and a number of fixed racks (26) are arranged in a rectangular equidistant pattern and fixedly connected to the inner wall of the mold frame (141). The fixed racks (26) on the side closer to the hopper (13) are disposed below the gears (25), while the fixed racks (26) on the side farther from the hopper (13) are disposed above the gears (25). The power unit (14) will drive the mold frame (141) to move smoothly and precisely, so that the mold frame (141) moves toward the side closer to the pressing unit (12) to a predetermined position.

2. The fly ash brick-making machine specifically for fly ash smelting according to claim 1, characterized in that: The pressing and rubbing assembly (2) also includes several force transmission plates (22). The force transmission plates (22) are arranged in a rectangular equidistant pattern and fixedly connected to the outer surface of the driving component (21). The pressing rollers (23) are rotatably connected to the bottom of the force transmission plates (22). The inner wall of the mold frame (141) is symmetrically provided with limiting grooves (24). The gears (25) are fixedly connected to a protrusion on the side away from the pressing rollers (23), and the protrusions on the outer surface of the gears (25) are slidably connected to the inside of the limiting grooves (24).

3. A fly ash brick-making machine specifically for fly ash smelting according to claim 1, characterized in that: Each of the pressing rollers (23) is fixedly connected to the bottom of an axe strip (27), which is generally in the shape of an arc groove, but its side is recessed inward.

4. A fly ash brick-making machine specifically for fly ash smelting according to claim 1, characterized in that: Each drive component (21) includes a drive motor, a positive and negative lead screw, two rotating seats, and two nut plates. The drive motor is mounted on the outer surface of the mold frame (141), the positive and negative lead screw is mounted on the outer surface of the output shaft of the drive motor, the two rotating seats are fixedly connected to the outer surface of the mold frame (141), the positive and negative lead screw is rotatably connected to the inside of the two rotating seats, the two nut plates are symmetrically threaded to the outer surface of the positive and negative lead screw, and the two nut plates are slidably connected to the top of the mold frame (141).

5. A fly ash brick-making machine specifically for fly ash smelting according to claim 2, characterized in that: The force transmission plate (22) is fixedly connected to the outer surface of the nut plate.

6. A fly ash brick-making machine specifically for fly ash smelting according to claim 1, characterized in that: A pneumatic sealing unit is provided below the hopper (13) to control the feeding of raw materials inside the hopper (13). A transmission unit is installed on the outside of the hopper (13) to feed raw materials. The pneumatic sealing unit, transmission unit, power unit (14) and pressing unit (12) are all electrically controlled by an external controller to start and stop.

7. A fly ash brick-making machine specifically for fly ash smelting according to claim 1, characterized in that: The top inner wall of the frame (11) is provided with a dual crushing assembly (3). The dual crushing assembly (3) includes a fixed frame (31) fixedly connected to the top inner wall of the frame (11). The outer surface of the fixed frame (31) is provided with buffers (32) arranged in a rectangular equidistant pattern. The bottom of the buffers (32) is provided with a screening plate (33), which is inclined.

8. A fly ash brick-making machine specifically for fly ash smelting according to claim 7, characterized in that: A vibrating element (34) is installed on the bottom side of the fixed frame (31) to drive the screening plate (33) to vibrate. The screening plate (33) has a cavity inside. The screening plate (33) has several screen holes (35) through its surface. The screen holes (35) on the upper and lower surfaces of the screening plate (33) are staggered. A crushing channel (38) is fixedly connected to the side of the screening plate (33) near the pressing unit (12). The crushing channel (38) can be connected to the external receiving container.

9. A fly ash brick-making machine specifically for fly ash smelting according to claim 7, characterized in that: The sieve plate (33) has several crushing rings (36) fixedly connected inside its internal cavity. Each crushing ring (36) contains several crushing beads (37). The upper and lower ends of each crushing bead (37) are rounded and convex, while the middle part of the crushing bead (37) is a circular convex shape.

Images