Fly ash brick making machine special for fly ash smelting

Abstract

The invention relates to the technical field of brick making machines, and discloses a fly ash brick making machine special for fly ash smelting, which comprises a rack, a pressing unit mounted on the outer surface of the rack, a hopper mounted at the top of the rack, a power unit mounted at the top of the rack, and a mold frame mounted at the bottom of the power unit, a pressing and opposite-twisting assembly used for preventing different quality of products caused by uneven distribution of fly ash raw materials is arranged below the power unit, and the pressing and opposite-twisting assembly comprises two driving parts, two pressing rollers, a plurality of gears and a plurality of fixing racks. Through the design that the driving part is introduced to drive the pressing rollers to move, automation and high efficiency of the raw material trowelling process are achieved, the pressing rollers serve as key components and can roll the raw materials, and due to the fact that the directions of the two pressing rollers are opposite, the design not only improves the trowelling effect, but also ensures that the raw materials are evenly distributed in the mold frame.

Description

Technical Field

[0001] The invention relates to the technical field of brick making machines, in particular to a fly ash brick making machine specially used for fly ash smelting. Background Art

[0002] The fly ash brick making machine is specially used to process fly ash produced by the incineration of domestic waste. It is of great significance in environmental protection and resource recycling. It can mix the fly ash after water washing and filtration with hazardous wastes such as slag, electroplating sludge, photovoltaic glass powder, etc. and then press them into bricks. The bricks are put into the melting furnace for melting after static water control treatment. This treatment not only facilitates the subsequent transportation and storage of materials, but also enables accurate measurement when putting them into the melting furnace.

[0003] Moreover, bricks of uniform shape are easier to form uniform molten materials during melting, which helps to improve the quality of the final product and achieve efficient use of resources. Through this process, the fly ash brick making machine achieves effective treatment and resource utilization of fly ash, playing a key role in environmental protection and resource recycling.

[0004] However, there are still some problems with the existing fly ash brick making machines: First, although the fly ash brick making machine, as an innovative environmental protection equipment, has shown great potential in promoting the resource utilization of fly ash from the incineration of domestic waste, the fly ash brick making machine in the existing technology still has significant deficiencies in the fly ash feeding and leveling links. 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, the existing technology attempts to introduce automation means. By designing a mold frame to receive the fly ash feeding, the reciprocating motion of the mold frame itself is used to achieve automatic leveling of the raw materials during the process of pushing it to the bottom of the pressure 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, thereby delaying the efficiency of the pressing head during the movement of the mold frame.

[0006] Secondly, since the fly ash raw materials have a certain fluidity and looseness, and are affected by multiple forces such as gravity and inertia during the pushing process, the distribution of the raw materials in the mold frame is very easy to be unbalanced. At this time, although the reciprocating motion of the mold frame attempts to level the raw materials through thrust and pulling forces, the action of these forces is often difficult to achieve uniformity, but will aggravate the uneven distribution of the raw materials, especially in the middle area of ​​the mold frame. Due to the intersection of thrust and pulling forces, excessive accumulation often occurs, resulting in uneven density inside the brick blank, which in turn affects the strength of the finished bricks, and ultimately causes the finished bricks to break during the subsequent static water control process.

[0007] Second, in the raw material feeding stage, due to the certain viscosity of fly ash itself, and under the continuous gravity pressure of the upper raw materials, fly ash is extremely easy to agglomerate. At present, vibration motors are generally used in the industry to address this problem. The vibration motor breaks large fly ash agglomerates into small pieces by generating high-frequency vibrations. However, this method has obvious limitations. It can only change the size of the agglomerates, but cannot fundamentally prevent the agglomeration phenomenon.

[0008] These remaining small agglomerates will have an adverse impact on the product quality in the subsequent brick blank pressing process. During the brick blank pressing process, although uniform pressure is applied, the presence of small agglomerates destroys the uniformity of the raw materials, which causes local deviations in the pressure transmission process, resulting in uneven stress when the brick blank is pressed.

[0009] This uneven stress situation becomes more prominent when entering the melting and disposal link subsequently. Because the density inside the brick blank is inconsistent, during melting and disposal, heat transfer will also be uneven. The agglomerate area with a large density heats up slowly, and the area with a small density heats up quickly. This makes it difficult for the entire brick blank to reach the melting state synchronously during melting and disposal, ultimately resulting in the difficulty of uniformly forming the molten material composition and greatly affecting the melting effect.

[0010] Therefore, the present invention proposes a fly ash brick making machine dedicated to fly ash smelting. Summary of the Invention

[0011] The purpose of the present invention is to provide a fly ash brick making machine dedicated to fly ash smelting to solve the problems raised in the above background technology.

[0012] To achieve the above purpose, the present invention provides the following technical solution: A fly ash brick making machine dedicated to fly ash smelting, including a frame. A pressing unit is installed on the outer surface of the frame. A hopper is installed on the top of the frame. A power unit is installed on the top of the frame. A mold frame is installed at the bottom of the power unit. A pressing and rubbing component is arranged below the power unit for preventing uneven distribution of fly ash raw materials, thereby resulting in different product qualities. The pressing and rubbing component includes two driving parts, two pressing rollers, several gears, and several fixed racks.

[0013] The driving part is used to drive the pressing roller to move. The pressing roller is used to press the fly ash raw materials flat through its own movement and the action of its own gravity. The gears and the fixed racks are all meshed with each other. The gears and the fixed racks are used to drive the pressing roller to rotate through their meshing relationship, thereby improving the pressing efficiency and making the fly ash raw materials evenly distributed.

[0014] Preferably, the two driving members are symmetrically installed on both sides of the mold frame, the two pressing rollers are arranged inside the mold frame, several of the gears are fixedly connected to the outer surface of the pressing rollers in a rectangular and equally spaced arrangement, several of the fixed racks are fixedly connected to the inner wall of the mold frame in a rectangular and equally spaced arrangement, and the fixed rack on the side close to the hopper is arranged below the gear, while the fixed rack on the side far from the hopper is arranged above the gear.

[0015] Preferably, the pressing and rubbing assembly further includes several force transmission plates, several of the force transmission plates are fixedly connected to the outer surface of the driving member in a rectangular and equally spaced arrangement, the pressing rollers are rotatably connected to the bottom of the force transmission plates, limiting grooves are symmetrically formed on the inner wall of the mold frame, protrusions are fixedly connected to the side of the gear away from the pressing roller, and the protrusions on the outer surface of the gear are slidably connected to the inside of the limiting grooves.

[0016] Preferably, an axe-shaped bar is fixedly connected to the bottom of each pressing roller, and the axe-shaped bar is integrally in the shape of an arc-shaped notch, but its side is recessed inward.

[0017] Preferably, the driving members each include a driving motor, a forward and reverse lead screw, two rotating seats, and two nut plates. The driving motor is installed on the outer surface of the mold frame, the forward and reverse lead screw is installed on the outer surface of the output shaft of the driving motor, the two rotating seats are fixedly connected to the outer surface of the mold frame, the forward and reverse lead screw is rotatably connected to the inside of the two rotating seats, the two nut plates are symmetrically threadedly connected to the outer surface of the forward and reverse lead screw, and the two 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 arranged below the hopper for controlling the feeding of the raw materials inside the hopper, a transmission unit is installed on the outside of the hopper for feeding the raw materials, and the pneumatic sealing unit, the transmission unit, the power unit, and the pressing unit are all electrically controlled by an external controller to start and stop.

[0020] Preferably, a double crushing assembly is arranged on the inner wall of the top side of the frame. The double crushing assembly includes a fixed frame fixedly connected to the inner wall of the top side of the frame, buffer members are installed on the outer surface of the fixed frame in a rectangular and equally spaced arrangement, a screening plate is installed at the bottom of the buffer members, and the screening plate is inclined.

[0021] Preferably, a vibrating member is installed on the bottom side of the fixing frame for driving the screening plate to vibrate. A cavity is formed inside the screening plate, and a plurality of screening holes are formed through the surface of the screening plate. The screening holes on the upper and lower surfaces of the screening plate are arranged in a staggered manner. A crushing channel is fixedly connected to one side of the screening plate close to the pressing unit, and the crushing channel can be connected to an external collection container.

[0022] Preferably, a plurality of crushing rings are fixedly connected inside the cavity of the screening plate. A plurality of crushing beads are placed inside each crushing ring. The upper and lower ends of each crushing bead are in an arc convex shape, and the middle part of the crushing bead is in a circular ring convex shape.

[0023] Preferably, the pressing unit includes a main machine, 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 member includes an L-shaped support plate, a spring, and a positioning seat.

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

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Aiming at the deficiencies of the existing fly ash brick making machine in the fly ash feeding and leveling links, the present invention realizes the automation and high efficiency of the raw material leveling process through the design of driving the pressing roller to move by a driving member. As a key component, the pressing roller can roll the raw material. Since the directions of the two pressing rollers are opposite, this design not only deepens the leveling effect but also ensures the uniform distribution of the raw material in the mold frame. At the same time, under the meshing relationship of the gear and the fixed rack, the two pressing rollers will also rotate during the movement, forming a kneading effect, so as to quickly and smoothly level the raw material during the process of the power unit pushing the raw material. This improvement significantly improves the production efficiency, reduces the labor cost, and is also helpful to improve the quality of the bricks after air drying, effectively ensuring that the bricks are not easy to break during the air drying process and subsequent use.

[0029] Compared with the traditional manual leveling method and the existing automatic leveling technology, although manual leveling can ensure the consistency of pressing, it is inefficient and costly; while the existing automatic leveling technology reduces manual intervention, but the reciprocating movement of the mold frame prolongs the preparation cycle of a single brick blank and affects the production efficiency. The present invention realizes the rapid and uniform leveling of the raw material by driving the movement and rotation of the pressing roller by a driving member, which not only improves the production efficiency but also ensures the quality of the finished product, and is an important breakthrough in the prior art.

[0030] Among them: The whole ax blade presents a circular arc notch shape, but its side is recessed inward. This structure enables the raw materials to be pushed to the other side by relying on the recessed notch shape during the rotation of the ax blade, thus effectively preventing the phenomenon of excessive accumulation in one part.

[0031] Among them: Through the sliding connection between the limit groove and the protrusion, the stability and accuracy of the gear during movement are ensured, thereby further improving the uniformity of raw material leveling.

[0032] In summary, through the design of introducing a driving part to drive the pressing roller to move, fixedly connecting the ax blade to the bottom of the pressing roller, and opening a limit groove on the inner wall of the mold frame, this improved technology significantly improves the production efficiency and finished product quality of the fly ash brick making machine. From the perspective of cost, since most of the pressing and rubbing components are standard parts, manufacturing, production, and maintenance are relatively easy, reducing the overall operating cost. At the same time, this improved technology also shortens the preparation cycle of a single brick blank, improves production efficiency, and lays a solid foundation for the wide application and further popularization of the fly ash brick making machine.

[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 the fly ash brick making machine.

[0034] 2. Aiming at the problem that the fly ash raw materials are prone to caking during the feeding stage, the present invention drives the screening plate to vibrate through a vibrating part and combines the misaligned screening effect of the sieve holes to achieve effective crushing and classification of the raw materials. During this process, the raw materials are crushed and enter the cavity inside the screening plate, while the part with slightly larger mass will enter the inside of the crushing channel under the guidance of the inclined screening plate for subsequent processing. This improvement effectively improves the uniformity of the raw materials, greatly reduces the caking phenomenon, and to a certain extent avoids the pressure transmission deviation caused by caking, preventing uneven deformation of the brick blank during the pressing process. More importantly, this improvement provides a brick blank with better quality for the subsequent smelting link, ensuring that heat can be evenly transmitted during smelting, enabling the brick blank to reach the molten state synchronously, and then forming a uniform molten substance, laying a solid foundation for improving the quality of the final product and achieving efficient smelting.

[0035] Compared with the current technical means that rely on vibrating motors to disperse caking, the present invention has more significant advantages. The vibrating motor can only disperse large cakings into small pieces and cannot eradicate the caking phenomenon. The dual crushing components drive the vibration of the screening plate through the vibrating part and the misaligned screening of the sieve holes, not only achieving the crushing of the raw materials but also classifying them, thus more thoroughly solving the caking problem. This improvement not only improves production efficiency but also reduces subsequent problems such as uneven smelting caused by caking.

[0036] Among them: under the vibration of the vibrating part, the crushing beads can vibrate inside the crushing ring and collide with the incoming raw materials, thereby breaking up their agglomerates. This collision effect not only further eliminates the agglomerates 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 effect not only helps to break up the lumps in the raw materials, but also prevents the sieve holes from being blocked due to the accumulation of raw materials.

[0038] Among them: setting the screening plate in an inclined state can make the raw materials more inclined to move along its inclined direction under the action of gravity, thereby avoiding the problem of excessive accumulation of raw materials on the force-generating side when the power unit pushes the raw materials.

[0039] In summary, the present invention significantly improves the processing efficiency and product quality of the fly ash brick making machine in the raw material feeding stage through various optimization measures such as the vibration part driving the screening plate to vibrate, the staggered screening of the screen holes, the collision and dispersion of the crushing ring and the crushing beads, and the inclined design of the screening plate. This improvement not only solves the problem of easy agglomeration of raw materials, but also improves the uniformity of subsequent bricks in the smelting process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0041] Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention.

[0042] Figure 3 For the present invention Figure 2 Enlarged three-dimensional schematic diagram of the structure at point A in the middle.

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

[0044] Figure 5 For the present invention Figure 4 Enlarged three-dimensional schematic diagram of the structure at point B in the middle.

[0045] Figure 6 For the present invention Figure 5 Enlarged three-dimensional schematic diagram of the structure at point C in the middle.

[0046] Figure 7 It is a partially cutaway perspective schematic diagram of the dual crushing assembly of the present invention.

[0047] Figure 8 For the present invention Figure 7 Enlarged three-dimensional schematic diagram of the structure at point D in the middle.

[0048] Figure 9 This is a partial cross-sectional three-dimensional schematic diagram of another angle of the dual crushing component of the present invention.

[0049] Figure 10 For the present invention Figure 9 A three-dimensional enlarged schematic diagram of the structure at position E in it.

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

[0051] In the figure: 11, frame; 12, pressing unit; 13, hopper; 14, power unit; 141, die frame.

[0052] 2, pressing and rubbing component; 21, driving part; 22, force transmission plate; 23, pressing roller; 24, limiting groove; 25, gear; 26, fixed rack; 27, axe bar.

[0053] 3, dual crushing component; 31, fixing frame; 32, buffer; 33, screening plate; 34, vibrating part; 35, screening holes; 36, crushing ring; 37, crushing beads; 38, broken material channel. Specific embodiments

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that the pressing unit 12 includes a main machine, a mold, a pressing head, upper and lower templates, and a lifting platform. The main machine is installed on the outer surface of the frame 11, the pressing head is installed below the main machine, the mold is installed on the main machine, and the upper and lower templates are installed on the upper and lower sides of the mold. It applies pressure to the raw materials through the drive of the main machine, and the pressing head moves up and down in the mold to complete the pressing action. The lifting platform is installed on the bottom side of the frame 11, and the lifting platform facilitates the addition of raw materials and the removal of brick blanks through its own lifting. Moreover, the pressing unit 12 has the same structure as the pressing part of the existing brick-making machine. 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. It drives the baffle to block the bottom of the hopper 13 through the driving force of the sealing cylinder. 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 respectively rotatably connected to the outer surface of the mold frame 141 and below the support arm. It realizes the precise movement and positioning of the mold frame 141 through the coordinated work of the upper and lower cylinders. Moreover, the power unit 14 has the same structure as the power part in the existing brick-making machine. Therefore, the structures and working principles of the pressing unit 12, the power unit 14, and the pneumatic sealing unit belong to the prior art, so they will not be elaborated further hereinafter.

[0056] Embodiment 1. Please refer to Figures 1 to 6 As shown in the figure, a fly ash brick-making machine dedicated to fly ash smelting includes a frame 11. A pressing unit 12 is installed on the outer surface of the frame 11, a hopper 13 is installed on the top of the frame 11, a power unit 14 is installed on the top of the frame 11, a mold frame 141 is installed at the bottom of the power unit 14, and a pressing and rubbing assembly 2 for preventing uneven distribution of fly ash raw materials and thus resulting in different product qualities is arranged below the power unit 14. The pressing and rubbing assembly 2 includes two driving members 21, two pressing rollers 23, several gears 25, and several fixed racks 26.

[0057] The driving member 21 is used to drive the pressing roller 23 to move. The pressing roller 23 is used to press and flatten the fly ash raw materials through its own movement and the action of its own gravity. The gears 25 and the fixed racks 26 are all meshed with each other. The gears 25 and the fixed racks 26 are used to drive the pressing roller 23 to rotate through their own meshing relationship, thereby improving the pressing efficiency and making the fly ash raw materials evenly distributed.

[0058] Please refer to Figures 4 to 6 and Figure 11As shown, two driving members 21 are symmetrically installed on both sides of the mold frame 141. Two pressing rollers 23 are arranged inside the mold frame 141. A number of gears 25 are all arranged at equal intervals in a rectangular shape and fixedly connected to the outer surface of the pressing roller 23. A number of fixed racks 26 are all arranged at equal intervals in a rectangular shape and fixedly connected to the inner wall of the mold frame 141. And the fixed rack 26 on the side close to the hopper 13 is arranged below the gear 25, while the fixed rack 26 on the side far from the hopper 13 is arranged above the gear 25. The pressing and rubbing assembly 2 further includes a number of force transmission plates 22. A number of force transmission plates 22 are all arranged at equal intervals in a rectangular shape and fixedly connected to the outer surface of the driving member 21. The pressing rollers 23 are all rotatably connected to the bottom of the force transmission plates 22. Limit grooves 24 are symmetrically formed on the inner wall of the mold frame 141. A protrusion is fixedly connected to the side of the gear 25 away from the pressing roller 23, and the protrusions on the outer surface of the gear 25 are all slidably connected inside the limit grooves 24. A hatchet bar 27 is fixedly connected to the bottom of each pressing roller 23. The hatchet bar 27 is integrally in the shape of an arc-notch, but its side is recessed inward.

[0059] It should be noted that the driving members 21 each include a driving motor, a forward and reverse lead screw, two rotating seats, and two nut plates. The driving motor is installed on the outer surface of the mold frame 141. The forward and reverse lead screw is installed on the outer surface of the output shaft of the driving motor. Two rotating seats are fixedly connected to the outer surface of the mold frame 141. The forward and reverse lead screw is rotatably connected inside the two rotating seats. Two nut plates are symmetrically threadedly connected to the outer surface of the forward and reverse lead screw, and both two nut plates are slidably connected to the top of the mold frame 141. The force transmission plates 22 are fixedly connected to the outer surface of the nut plates. A pneumatic sealing unit is arranged below the hopper 13 for controlling the feeding of the raw materials inside the hopper 13. A transmission unit is installed outside the hopper 13, specifically implemented as a belt conveyor, for feeding the raw materials. The pneumatic sealing unit, the transmission unit, the power unit 14, and the pressing unit 12 are all electrically controlled by an external controller to start and stop.

[0060] Specifically, the operator starts the power system of the entire brick-making machine through the external controller to ensure that all devices are in a standby state. Subsequently, the fly ash raw materials after water washing and formulation are placed on the belt conveyor. The belt conveyor continuously and evenly conveys the raw materials into the hopper 13. When the raw materials are successfully fed into the hopper 13, the pneumatic sealing unit immediately responds to the instruction of the external controller, the sealing cylinder starts and releases the blocking effect of the baffle. At this time, the raw materials will fall into the mold frame 141.

[0061] Next, the operator electrically controls the power unit 14 and the driving members 21 to start simultaneously through the external controller. The power unit 14 drives the mold frame 141 to move smoothly and precisely, so that the mold frame 141 moves towards the side close to the pressing unit 12 to a predetermined position. At the same time, the driving motor in the driving member 21 starts.

[0062] The driving motors respectively drive the forward and reverse lead screws to rotate. Due to the self-characteristics of the forward and reverse lead screws, the two nut plates will continuously move towards the middle of the mold frame 141 under the cooperation of the threads. During this process, the nut plates drive the force transmission plates 22 fixed on their outer surfaces to move synchronously. Furthermore, the force transmission plates 22 drive the pressing rollers 23 rotatably connected thereto to move, achieving a preliminary rolling effect and preliminarily compressing the fly ash raw materials.

[0063] Particularly importantly, the movement of the pressing roller 23 will drive the gear 25 fixedly connected to its outer surface to move together. Since the gear 25 meshes with the fixed rack 26 fixedly connected to the inner wall of the mold frame 141, this meshing relationship causes the pressing roller 23 to rotate while moving. This design of rotating while moving greatly improves the pressing efficiency and enables the fly ash raw materials to be more evenly distributed in the mold.

[0064] Specifically, an axe-shaped bar 27 is fixedly connected to the bottom of each pressing roller 23. Based on the shape of the axe-shaped bar 27 with an arc-shaped notch and a concave side inward, the axe-shaped bar 27 pushes the raw materials at the corners or the bottom to the other side through the concave part. Since the fixed rack 26 is asymmetrically arranged, that is, the fixed rack 26 closer to the hopper 13 is arranged below the gear 25, and the fixed rack 26 farther from the hopper 13 is arranged above the gear 25, the rotation directions of the two pressing rollers 23 on both sides are the same. Similarly, the rotation directions of the axe-shaped bar 27 and the pressing roller 23 are also the same. Furthermore, their movements form a rubbing effect. During the process of the raw materials being pushed, due to their own mass and the acting force of the pushing force, the raw materials tend to accumulate on one side of the force application point. However, through the rubbing movement of the two pressing rollers 23, this situation can be effectively improved, avoiding local accumulation of the raw materials in the mold and ensuring the uniformity and consistency of the product.

[0065] In addition, it is worth noting that the pressing roller 23 moves simultaneously during the movement of the power unit 14. This means that the uniform distribution and pressing of the raw materials are completed in the same work process without additional time, thereby improving the production efficiency. Finally, after the uniform distribution and preliminary compaction by the pressing and rubbing assembly 2 device, the raw materials are pushed to the lower part of the pressing unit 12. At this time, the external controller electrically controls the driving motor to start and reset, that is, the forward and reverse lead screws reverse, driving the nut plates and the force transmission plates 22 to return 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 materials to form fly ash bricks.

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

[0067] Example 2. On the basis of Example 1, please refer to Figure 7 and Figure 8 As shown, a double crushing assembly 3 is provided on the inner wall of the top side of the frame 11. The double crushing assembly 3 includes a fixing frame 31 fixedly connected to the inner wall of the top side of the frame 11. Buffer members 32 are equidistantly arranged on the outer surface of the fixing frame 31 in a rectangular shape. A screening plate 33 is installed at the bottom of the buffer member 32. The screening plate 33 is inclined.

[0068] Please refer to Figures 7 to 10 As shown, a vibrating member 34 is installed at the bottom side of the fixing frame 31 for driving the screening plate 33 to vibrate. A cavity is formed inside the screening plate 33. A plurality of screening holes 35 are formed through the surface of the screening plate 33. The screening holes 35 on the upper surface and the lower surface of the screening plate 33 are arranged in a staggered manner. A broken material channel 38 is fixedly connected to one side of the screening plate 33 close to the pressing unit 12. The broken material channel 38 can be connected to an external collection container. A plurality of crushing rings 36 are fixedly connected inside the cavity of the screening plate 33. A plurality of crushing beads 37 are placed inside each crushing ring 36. The upper and lower ends of each crushing bead 37 are in a circular arc convex shape, and the middle part of the crushing bead 37 is in a circular ring convex shape.

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

[0070] Specifically, on the basis of Example 1, when the raw material is put into the mold frame 141 through the pneumatic sealing unit, the operator can electrically control the driving motor to start through the external controller at the same time. The driving motor will drive the cam to rotate, so that the vibrating screening plate 33 starts to vibrate.

[0071] The raw material first falls on the upper surface of the screening plate 33. Under the continuous vibration, the lumps are effectively broken. The large raw materials that cannot be broken enter the broken material channel 38 under the guidance of the vibration and the inclination angle of the screening plate 33. One side of the broken material channel 38 is connected to an external collection container, and the large raw materials are smoothly discharged from the system, avoiding their influence on the subsequent pressing process.

[0072] For those broken raw materials, they will enter the interior of the cavity of the screening plate 33 through the sieve holes 35. Here, the raw materials meet the crushing ring 36 arranged in the cavity and the crushing beads 37 inside it. Both the upper and lower ends of the crushing beads 37 are in the shape of arc protrusions, and the middle part is in the shape of a circular ring protrusion. Such a design increases the contact area between the raw materials and the crushing beads 37, improving the crushing efficiency. During the process of the screening plate 33, the crushing beads 37 inside it will also move accordingly, further finely 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 materials will fall into the interior of the lower mold frame 141 through the sieve holes 35 at the bottom. Due to the inclined angle of the screening plate 33 itself, the raw materials will be subjected to an oblique guiding force, so that they will not accumulate too much on the side of the mold frame 141 far from the pressing unit 12.

[0074] It should be noted that since the upper and lower ends of the crushing beads 37 are in the shape of arc protrusions, during the disordered vibration of the crushing beads 37, they can also cooperate with the inside of the sieve holes 35 through the protrusions at the upper and lower ends, thereby preventing the sieve holes 35 themselves from being blocked.

[0075] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0076] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fly ash brick making machine dedicated to fly ash smelting, comprising a frame (11), a pressing unit (12) is installed on the outer surface of the frame (11), a hopper (13) is installed on the top of the frame (11), a power unit (14) is installed on the top of the frame (11), and a mold frame (141) is installed on the bottom of the power unit (14), characterized in that: A pressing and rubbing assembly (2) is provided below the power unit (14) for preventing uneven distribution of fly ash raw materials and thus causing different product qualities. The pressing and rubbing assembly (2) comprises two driving members (21), two pressing rollers (23), a plurality of gears (25) and a plurality of fixed racks (26); the driving member (21) is used to drive the pressing rollers (23) to move, and the pressing rollers (23) are used to press the fly ash raw materials flat by their own movement and the action of their own gravity. The gears (25) and the fixed racks (26) are meshed with each other, and the gears (25) and the fixed racks (26) are used to drive the pressing rollers (23) to rotate by their own meshing relationship, thereby improving the pressing efficiency and making the fly ash raw materials evenly distributed.

2. A fly ash brick making machine dedicated to fly ash smelting according to claim 1, characterized in that: The two driving members (21) are symmetrically mounted on both sides of the mold frame (141); the two pressing rollers (23) are arranged inside the mold frame (141); a plurality of gears (25) are arranged in a rectangular shape and are equidistantly fixed to the outer surfaces of the pressing rollers (23); a plurality of fixed racks (26) are arranged in a rectangular shape and are equidistantly fixed to the inner wall of the mold frame (141); the fixed racks (26) on the side close to the hopper (13) are arranged below the gears (25); and the fixed racks (26) on the side away from the hopper (13) are arranged above the gears (25).

3. A fly ash brick making machine dedicated to fly ash smelting according to claim 2, characterized in that: The pressing and rubbing assembly (2) further comprises a plurality of force transmission plates (22), wherein the plurality of force transmission plates (22) are arranged in a rectangular shape and are fixedly connected to the outer surface of the driving member (21) at equal intervals, and 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 limit grooves (24), and the side of the gear (25) away from the pressing roller (23) is fixedly connected with a protrusion, and the protrusion on the outer surface of the gear (25) is slidably connected to the inside of the limit groove (24).

4. A fly ash brick making machine dedicated to fly ash smelting according to claim 1, characterized in that: The bottom of each pressing roller (23) is fixedly connected to an axe bar (27), and the axe bar (27) is in the shape of an arc notch as a whole, but its side edges are concave inwards.

5. A fly ash brick making machine dedicated to fly ash smelting according to claim 1, characterized in that: The driving components (21) each comprise a driving motor, a forward and reverse screw rod, two rotating seats and two nut plates, the driving motor being mounted on the outer surface of the mold frame (141), the forward and reverse screw rods being mounted on the outer surface of the output shaft of the driving motor, the two rotating seats being fixedly connected to the outer surface of the mold frame (141), the forward and reverse screw rods being rotatably connected to the inside of the two rotating seats, the two nut plates being symmetrically threadedly connected to the outer surfaces of the forward and reverse screw rods, and the two nut plates being slidably connected to the top of the mold frame (141).

6. A fly ash brick making machine dedicated to fly ash smelting according to claim 3, characterized in that: The force transmission plate (22) is fixedly connected to the outer surface of the nut plate.

7. A fly ash brick making machine dedicated to fly ash smelting according to claim 1, characterized in that: A pneumatic sealing unit is provided below the hopper (13) for controlling the discharge of raw materials inside the hopper (13); a transmission unit is installed outside the hopper (13) for loading the raw materials; the pneumatic sealing unit, the transmission unit, the power unit (14) and the pressing unit (12) are all electrically controlled to start and stop by an external controller.

8. The fly ash brick making machine dedicated to fly ash smelting according to claim 1, characterized in that: A double crushing assembly (3) is arranged on the inner wall of the top side of the frame (11), and the double crushing assembly (3) comprises a fixing frame (31) fixedly connected to the inner wall of the top side of the frame (11), and the outer surface of the fixing frame (31) is rectangular and has buffer members (32) arranged equidistantly thereon, and a screening plate (33) is installed at the bottom of the buffer member (32), and the screening plate (33) is arranged obliquely.

9. A fly ash brick making machine dedicated to fly ash smelting according to claim 8, characterized in that: A vibrating member (34) is mounted on the bottom side of the fixed frame (31) for driving the sieve plate (33) to vibrate. A cavity is provided inside the sieve plate (33). A plurality of sieve holes (35) are provided through the surface of the sieve plate (33). The sieve holes (35) on the upper and lower surfaces of the sieve plate (33) are staggered. A crushed material channel (38) is fixedly connected to one side of the sieve plate (33) close to the pressing unit (12). The crushed material channel (38) can be connected to an external collecting container.

10. A fly ash brick making machine dedicated to fly ash smelting according to claim 8, characterized in that: A plurality of crushing rings (36) are fixedly connected to the inner cavity of the screening plate (33), and a plurality of crushing beads (37) are placed inside each crushing ring (36). The upper and lower ends of each crushing bead (37) are both in the shape of arc protrusions, and the middle part of the crushing bead (37) is in the shape of a circular protrusion.

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