A mixing device for producing standard bricks from waste desulfurization ash

Abstract

A kind of mixing device for producing standard brick with waste desulfurization ash, relating to the technical field of standard brick preparation, comprising frame body and successively vertically arranged horizontal double-shaft premixing stirring device, crushing device and mixing stirring device, the discharge port and feed port of premixing and mixing stirring device are on the same side and correspond to each other, and the material is transported by gravity;The driving motor of crushing device is installed on the top of premixing stirring device, and the feed port of premixing stirring device is provided with a screen mesh. The crushing device adopts a multi-stage centrifugal impact structure, including a fixed cylinder, a rotating cylinder with an annular impact wall, a shaft, and a corresponding guide plate and a centrifugal disc, and the rotating cylinder and the centrifugal disc rotate in opposite directions. The present application effectively disperses the waste desulfurization ash agglomeration through three-stage continuous processing of premixing, crushing and final mixing, ensures the stability of calcium points in the mixture at a mixing amount of 30%-40%, has a compact structure, low energy consumption, less dust, and significantly improves the quality stability of finished bricks.

Description

Technical Field

[0001] This invention relates to the field of standard brick preparation technology, and in particular to a mixing device for producing standard bricks using waste desulfurization ash. Background Technology

[0002] The emissions of desulfurization ash from coal-fired power plants are increasing year by year. The stockpiling of large amounts of waste desulfurization ash not only occupies valuable land resources but also causes serious pollution to the soil, water bodies, and atmospheric environment. Therefore, realizing the resource utilization of waste desulfurization ash has become an urgent environmental problem and technical challenge. At the same time, calcium carbide slag generated during the production of polyvinyl chloride (PVC) using the calcium carbide method is also one of the largest industrial solid wastes emitted in my country. Currently, using calcium carbide slag as a calcium-based raw material to produce standard building bricks is one of its main resource utilization methods. However, the regional distribution of calcium carbide slag is uneven, the supply is unstable, and the treatment cost in some areas continues to rise. Therefore, research on using waste desulfurization ash to replace part of the calcium carbide slag in the production of standard bricks can not only simultaneously dispose of both types of industrial solid waste and further reduce the production cost of building materials, but also alleviate the problem of calcium carbide slag supply shortage, resulting in more significant environmental and economic benefits. In this technical approach, determining the calcium point stability of the mixture of waste desulfurization ash and carbide slag at different admixture ratios of 30%-40% through orthogonal experiments is the core technical prerequisite. The calcium point stability of the mixture directly determines the rate and extent of the hydration reaction of the brick blank, which in turn affects the key performance indicators of the finished brick, such as compressive strength, frost resistance, and drying shrinkage. Only by ensuring that the calcium point distribution of the mixture as a whole and in local areas is uniform and stable can the quality consistency of the finished brick be guaranteed.

[0003] However, in the actual production process of standard bricks using waste desulfurization ash to replace part of the carbide slag, even after determining the theoretically optimal dosage range through orthogonal experiments in the laboratory, it is still difficult to consistently achieve the expected uniformity of calcium points in industrial production. The most prominent problem lies in the physical properties of the waste desulfurization ash itself. Waste desulfurization ash has extremely strong hygroscopicity, and its particle surface contains a large amount of soluble sulfates and calcium salts. During storage, transportation, and mixing, it easily absorbs moisture from the air, forming clumps or agglomerates of varying sizes. The waste desulfurization ash inside these agglomerated particles cannot fully contact and mix with other raw materials such as carbide slag, cement, and aggregates, resulting in localized areas of excessively high or low calcium content in the mixture. This severely disrupts the calcium point balance determined through orthogonal experiments. Even if the overall dosage is controlled within the optimal range of 30%-40%, quality problems such as large fluctuations in the strength of the finished bricks, localized looseness, cracking, and poor durability will occur, becoming a key bottleneck restricting the large-scale application of this technology.

[0004] Existing waste desulfurization ash brick-making mixing devices have many obvious shortcomings in solving the above problems. For example, most existing mixing devices only have one or two stages of stirring structure, lacking a special crushing and dispersing stage for waste desulfurization ash agglomerates. Relying solely on the shearing action of the stirring blades cannot effectively break up the hard agglomerated particles, resulting in a large number of unevenly composed lumps in the mixed material, which cannot guarantee the uniformity and stability of the calcium content in the mixture; in particular, it cannot effectively crush the lumps generated during the stirring and mixing process. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention discloses a mixing device for producing standard bricks using waste desulfurization ash.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A mixing device for producing standard bricks from waste desulfurization ash, including a frame;

[0008] The premixing device is installed on the top of the frame, with the inlet and outlet of the premixing device located at opposite ends of the machine body.

[0009] The mixing and stirring device is installed at the bottom of the frame, and there is a gap between the mixing and stirring device and the premixing and stirring device; the inlet and outlet of the mixing and stirring device are located at both ends of its body, and the inlet of the mixing and stirring device and the outlet of the premixing and stirring device are located on the same side of the frame.

[0010] The crushing device is installed between the premixing device and the mixing device; the drive motor of the crushing device is installed on top of the premixing device.

[0011] Preferably, the crushing device includes:

[0012] The fixed cylinders are multiple cylinders arranged at intervals from top to bottom;

[0013] A connecting rod is installed between two adjacent fixed cylinders; the connecting rods are multiple rods spaced apart in the circumferential direction, and the connecting rods are located on the inner wall of the fixed cylinder;

[0014] A rotating cylinder is fitted over a fixed cylinder; both ends of the rotating cylinder are rotatably connected to the topmost and bottommost fixed cylinders, respectively; the rotating cylinder is provided with a thickened annular impact wall in the annular gap area between two adjacent fixed cylinders, and the inner diameter of the annular impact wall is the same as the inner diameter of the fixed cylinder.

[0015] The motor is mounted on the fixed cylinder, and the motor's output shaft is connected to the rotating cylinder via a transmission connection.

[0016] The rotating shaft is rotatably connected to the fixed cylinder via a hollow bracket; the top of the rotating shaft is connected to the drive motor installed on the top of the premixing device.

[0017] Centrifugal discs are arranged at intervals along the axis of rotation, and each centrifugal disc corresponds one-to-one with a ring-shaped impact wall of the rotating cylinder.

[0018] There are multiple guide trays, each located above a number of centrifugal discs; the guide trays have an inverted trumpet-shaped structure, with their larger ends fastened to the corresponding fixed cylinders.

[0019] Preferably, the centrifugal disc is fastened with multiple baffles, which are arranged radially.

[0020] Preferably, the centrifugal disc has a conical structure.

[0021] Preferably, the centrifugal disc has a sieve structure on its surface.

[0022] Preferably, a scraper is installed on the connecting rod at the position corresponding to the annular impact wall of the rotating cylinder.

[0023] Preferably, the connecting rod has a triangular prism shape.

[0024] Preferably, the rotation direction of the rotating cylinder is opposite to the rotation direction of the centrifugal disc.

[0025] Preferably, the mixing and stirring device and the premixing and stirring device share the same power drive device.

[0026] Preferably, the premixing device is a horizontal twin-shaft mixer with a screen installed at its feed inlet; the mixing device is a horizontal mixer.

[0027] By employing the technical solution described above, the present invention has the following beneficial effects:

[0028] (1) The present invention has a simple structure and adopts a vertical layout with the premixing device on top and the mixing device below. The discharge port and the feed port of the two are on the same side and correspond vertically. The material can be smoothly transported between each process by gravity without the need for additional conveying equipment such as belt conveyors and screw conveyors. This significantly shortens the material transport path, reduces equipment energy consumption and floor space, and effectively reduces dust pollution during the transport process, thus improving the production environment. The device achieves deep and uniform mixing through the vertical connection of the three-stage processes of premixing, crushing and final mixing. Based on the initial mixing, a crushing stage is specially set up to address the characteristic of waste desulfurization ash being easy to absorb moisture and clump. This effectively breaks up clumps and agglomerated particles in the material. Then, the final mixing achieves deep and uniform mixing, which fundamentally solves the problem of uneven calcium point distribution in the mixture caused by clumping in the prior art. This ensures that even with a 30%-40% waste desulfurization ash substitution, the mixture can still maintain a stable calcium point balance, which significantly improves the strength stability and quality consistency of the finished bricks.

[0029] (2) The crushing device of this invention adopts a multi-stage centrifugal impact structure. The material falling from the upper layer is precisely guided to the central area of ​​the centrifugal disc through the guide plate, preventing ineffective accumulation of material and ensuring that all material can enter the effective crushing zone. With the one-to-one correspondence between the multi-stage centrifugal disc and the annular impact wall, the material is crushed step by step, which can effectively break up waste desulfurization ash clumps of different hardness and particle size. Furthermore, the radial baffles set on the centrifugal disc can prevent the material from slipping and ensure that the material receives sufficient centrifugal force. The centrifugal disc with a conical screen structure realizes the graded treatment of the material. Small-diameter material falls directly through the screen holes, and only large-diameter clumps are thrown out for impact crushing, which improves the crushing efficiency. The scraper set on the connecting rod can continuously scrape off the sticky and wet material on the annular impact wall, preventing the material from accumulating and hardening, affecting the crushing effect and the dynamic balance of the equipment. The triangular prism-shaped connecting rod not only enhances the structural strength, but also provides auxiliary crushing effect on the material and reduces material accumulation. The design of the rotating cylinder and the centrifugal disc rotating in opposite directions increases the relative speed between the material and the impact wall, significantly enhances the crushing impact force, and further improves the crushing efficiency of hard clumps.

[0030] (3) This invention adopts a dual-stirring device design with complementary functions. The premixing stirring device adopts a horizontal double-shaft structure, which can generate strong convection and shearing effects to achieve rapid preliminary mixing of materials. The mixing stirring device, as the final mixing device, performs deep homogenization treatment on the crushed materials. The combination of the two can ensure the uniformity of the output while ensuring mixing efficiency, which meets the requirements of standard brick production. The screen set at the feed inlet of the premixing stirring device can intercept large particles of impurities and foreign objects in advance, preventing them from damaging the internal stirring blades or affecting the subsequent crushing and mixing quality. In addition, the stirring device can be driven by independent power or shared power. Independent drive can adjust the operating parameters to adapt to different material characteristics and production rhythm, while shared drive reduces the number of motors, simplifies the electrical control system, ensures the consistency of the rhythm of the premixing and final mixing processes, and improves the stability and reliability of production. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a top view of the premixing and stirring device;

[0033] Figure 3 A top view of the mixing and stirring device;

[0034] Figure 4 This is a three-dimensional structural diagram of the crushing device;

[0035] Figure 5 This is a schematic diagram of the crushing device;

[0036] Figure 6This is a top view of the crushing device;

[0037] Figure 7 This is a cross-sectional view of the crushing device;

[0038] Figure 8 This is a schematic diagram of the three-dimensional structure of the fixed cylinder;

[0039] Figure 9 This is a schematic diagram of the three-dimensional structure of the rotating cylinder;

[0040] Figure 10 This is a schematic diagram of the three-dimensional structure of the centrifuge disc;

[0041] Figure 11 This is a top view of a sieve-type centrifuge disc.

[0042] In the diagram: 1. Frame; 2. Premixing device; 3. Mixing device; 4. Crushing device; 4-1. Fixed cylinder; 4-2. Connecting rod; 4-3. Rotating cylinder; 4-4. Motor; 4-5. Rotating shaft; 4-6. Centrifugal disc; 4-7. Guide disc; 4-8. Baffle; 4-9. Scraper. Detailed Implementation

[0043] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Example 1:

[0046] Combined with appendix Figures 1-3A mixing device for producing standard bricks from waste desulfurization ash includes a frame 1, a premixing and stirring device 2, a mixing and stirring device 3, and a crushing device 4. The premixing and stirring device 2 is installed on top of the frame 1, with its inlet and outlet located at opposite ends of the machine body, and is used for preliminary mixing of the waste desulfurization ash and other raw materials.

[0047] The mixing and stirring device 3 is installed at the bottom of the frame 1, and there is a certain gap between the mixing and stirring device 3 and the premixing and stirring device 2 in the vertical direction. The inlet and outlet of the mixing and stirring device 3 are also located at both ends of its body, and the inlet of the mixing and stirring device 3 and the outlet of the premixing and stirring device 2 are located on the same side of the frame 1. This layout of corresponding materials on the same side allows the material to smoothly enter the transition area below by gravity after being discharged from the premixing and stirring device 2, shortening the material conveying path and reducing dust.

[0048] Because waste desulfurization ash is highly hygroscopic and prone to caking or agglomeration, it will affect the uniformity of mixing if it is not broken up in time. A crushing device 4 is installed in the gap between the premixing device 2 and the mixing device 3. The crushing device 4 is used to crush any caking or agglomerated particles that may exist in the premixed material to ensure the uniformity of subsequent mixing. The drive motor of the crushing device 4 is installed on top of the premixing device 2. This arrangement makes full use of the space on top of the premixing device 2 and avoids the drive motor occupying the lateral space around the crushing device 4, thus making the overall structure more compact and facilitating the inspection and maintenance of the drive motor.

[0049] During operation, raw materials such as waste desulfurization ash first enter from the feed inlet at one end of the premixing device 2 and are premixed. Then, they are discharged from the discharge outlet at the other end and fall into the crushing device 4 for crushing and dispersion. The crushed material continues to fall into the feed inlet of the mixing device 3. After being fully mixed in the mixing device 3, it is discharged from its discharge outlet. The entire device achieves efficient and uniform mixing of waste desulfurization ash brick-making raw materials through the vertical connection of the three-stage processes of premixing, crushing and final mixing.

[0050] Example 2:

[0051] Combined with appendix Figure 1 , 4~10, a mixing device for producing standard bricks from waste desulfurization ash, differing from Embodiment 1 in that, based on Embodiment 1, the crushing device 4 includes a fixed cylinder 4-1, connecting rods 4-2, a rotating cylinder 4-3, a motor 4-4, a rotating shaft 4-5, a centrifugal disc 4-6, and a guide disc 4-7. Multiple fixed cylinders 4-1 are arranged at intervals from top to bottom, and adjacent fixed cylinders 4-1 are fixedly connected by multiple connecting rods 4-2 arranged at intervals along the circumference. The connecting rods 4-2 are located on the inner wall of the fixed cylinder 4-1 to ensure the overall structural strength.

[0052] A rotating cylinder 4-3 is fitted over the exterior of multiple fixed cylinders 4-1, with its two ends rotatably connected to the top and bottom fixed cylinders 4-1, respectively. The rotating cylinder 4-3 has a thickened annular impact wall at the annular gap between corresponding adjacent fixed cylinders 4-1. The inner surface of this annular impact wall is flush with the inner surface of the fixed cylinder 4-1, thus forming a continuous and smooth material channel inside the rotating cylinder 4-3, preventing material from getting stuck at the steps during impact crushing. (See attached image) Figure 7 As shown, a nylon sealing ring is provided in the gap between the rotating cylinder 4-3 and the fixed cylinder 4-1 to prevent material from entering the gap between the rotating cylinder 4-3 and the fixed cylinder 4-1 and causing the rotating cylinder 4-3 to jam unexpectedly.

[0053] The motor 4-4 is mounted on the top fixed cylinder 4-1, and the output shaft of the motor 4-4 is connected to the rotating cylinder 4-3 via a transmission mechanism, such as an external meshing gear transmission mechanism, to drive the rotating cylinder 4-3 and its annular impact wall to rotate around the axis of the fixed cylinder 4-1.

[0054] The rotating shaft 4-5 is rotatably connected to the fixed cylinder 4-1 via a perforated bracket. Each fixed cylinder 4-1 has a perforated bracket inside, which supports the rotating shaft 4-5 while allowing material to pass through. The top of the rotating shaft 4-5 is connected to the drive motor of the crushing device installed on the top of the premixing device 2. The drive motor provides power to rotate the rotating shaft 4-5 around its own axis. Multiple centrifugal discs 4-6 are spaced apart along the axial direction of the rotating shaft 4-5, and each centrifugal disc 4-6 corresponds one-to-one with a multiple annular impact wall on the rotating cylinder 4-3. When the rotating shaft 4-5 drives the centrifugal discs 4-6 to rotate at high speed, the material falling onto the centrifugal discs 4-6 is radially thrown out under the action of centrifugal force and impacts the annular impact wall, thereby achieving the crushing and dispersion of the material.

[0055] Multiple guide discs 4-7 are respectively set above multiple centrifugal discs 4-6. The guide discs 4-7 have an inverted trumpet-shaped structure. The large end of the guide disc is fastened to the corresponding fixed cylinder 4-1, and the small end faces the corresponding centrifugal disc 4-6 below. The material falling from the upper layer first contacts the inclined surface of the guide disc 4-7. Under the action of gravity, it converges along the inclined surface to the center and is guided to the central area of ​​the centrifugal disc 4-6. This prevents the material from splashing directly onto the inner wall of the fixed cylinder 4-1 or the connecting rod 4-2 and causing ineffective accumulation. It ensures that the material can accurately enter the effective working area of ​​the centrifugal disc 4-6 for crushing. After being crushed step by step by the multi-stage centrifugal discs 4-6 and the annular impact wall, the material is finally discharged from the lower end of the bottom fixed cylinder 4-1 and enters the mixing and stirring device 3 below.

[0056] Example 3:

[0057] Combined with appendix Figure 1 , 4 ~11, a mixing device for producing standard bricks using waste desulfurization ash, based on Embodiment 2, wherein multiple baffles 4-8 are tightly connected to the surface of the centrifugal disc 4-6, and the baffles 4-8 are arranged radially on the surface of the centrifugal disc 4-6. When the centrifugal disc 4-6 rotates, the baffles 4-8 can apply tangential thrust to the material falling on the disc surface, preventing the material from slipping due to synchronous rotation with the centrifugal disc 4-6, and ensuring that the material receives sufficient centrifugal force to be thrown radially. The centrifugal disc 4-6 has an overall conical structure, and its disc surface adopts a screen structure. The inclined surface of the conical structure can guide the material gathered at the center of the guide disc 4-7 to the outside. Combined with the screen structure, the material with a smaller particle size can directly pass through the screen holes and fall, while the agglomerated material with a larger particle size is transported to the edge along the conical surface and crushed by impacting the annular impact wall under the action of centrifugal force, thereby realizing the graded treatment and selective crushing of the material.

[0058] Furthermore, a scraper 4-9 is installed on the connecting rod 4-2 at the corresponding position on the annular impact wall of the rotating drum 4-3. The scraper 4-9 maintains a clearance fit with the inner surface of the annular impact wall. During the rotation of the rotating drum 4-3, the scraper 4-9 can continuously scrape off the sticky and wet material adhering to the inner wall of the annular impact wall, preventing the material from accumulating and hardening, which would affect the crushing effect and the dynamic balance of the equipment. The scraper 4-9 can be replaced periodically. The connecting rod 4-2 has a triangular prism structure, with its edges facing the centrifugal disc 4-6, which can provide auxiliary crushing effect on the material contacted during the impact and reduce the accumulation of material on the surface of the connecting rod 4-2.

[0059] Furthermore, the rotation direction of the rotating drum 4-3 is opposite to that of the centrifugal disc 4-6. This reverse rotation setting allows the material thrown out by the centrifugal disc 4-6 to form a greater relative impact velocity with the annular impact wall, which significantly enhances the crushing impact force and improves the crushing efficiency of hard agglomerates in waste desulfurization ash. At the same time, the shear flow generated by the reverse motion helps to break up light agglomerates and promotes the uniform distribution of materials in the crushing chamber.

[0060] Example 4:

[0061] Combined with appendix Figures 1-3 A mixing device for producing standard bricks from waste desulfurization ash, based on any of the embodiments in Examples 1 to 3, wherein the mixing and stirring device 3 and the premixing and stirring device 2 are each equipped with an independent power drive device; the mixing and stirring device 3 and the premixing and stirring device 2 operate independently, and their operating parameters can be adjusted separately through an existing electrical control system to ensure the consistency of the mixing cycle. Alternatively, the mixing and stirring device 3 and the premixing and stirring device 2 share the same power drive device, which outputs power to both the premixing and stirring device 2 and the mixing and stirring device 3 simultaneously through a transmission mechanism. This shared power setting reduces the number of drive motors, simplifies the complexity of the electrical control system, and ensures the consistency of the operating cycle of the premixing and final mixing processes.

[0062] The premixing device 2 is a horizontal twin-shaft mixer with two mixing shafts rotating in opposite directions. This generates strong convection and shearing forces on the waste desulfurization ash and other raw materials, achieving initial and rapid mixing of the materials. Furthermore, a screen is installed at the feed inlet of the premixing device 2. This screen can intercept large particles or foreign objects before the materials enter the premixing device 2, preventing them from damaging the internal mixing blades or affecting the subsequent crushing and mixing quality.

[0063] The mixing and stirring device 3 is a horizontal mixer, located below the premixing and stirring device 2, and receives the material processed by the crushing device 4. The mixing and stirring device 3 performs the final uniform mixing of the crushed and dispersed material to ensure that the waste desulfurization ash and other additives are fully integrated to meet the requirements of raw material homogeneity for standard brick production. The premixing and stirring device 2 adopts a dual-shaft structure, focusing on efficient premixing and initial dispersion, while the mixing and stirring device 3, as the final mixing equipment, focuses on deep homogenization and quality stability. The two complement each other in function to jointly ensure the quality of the output.

[0064] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to encompass all changes falling within the meaning and scope of equivalents within this invention.

Claims

1. A mixing device for producing standard bricks from waste desulfurization ash, characterized in that, include: Frame (1); The premixing device (2) is installed on the top of the frame (1), and the inlet and outlet of the premixing device (2) are located at both ends of its body. The mixing and stirring device (3) is installed at the bottom of the frame (1), and there is a gap between the mixing and stirring device (3) and the premixing and stirring device (2); the inlet and outlet of the mixing and stirring device (3) are located at both ends of its body, and the inlet of the mixing and stirring device (3) and the outlet of the premixing and stirring device (2) are located on the same side of the frame (1). The crushing device (4) is installed between the premixing device (2) and the mixing device (3); the drive motor of the crushing device (4) is installed on top of the premixing device (2).

2. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 1, characterized in that, The crushing device (4) includes: Fixed cylinders (4-1) are multiple cylinders arranged at intervals from top to bottom; A connecting rod (4-2) is installed between two adjacent fixed cylinders (4-1); the connecting rods (4-2) are multiple ones spaced apart along the circumferential direction, and the connecting rods (4-2) are located on the inner wall of the fixed cylinder (4-1); A rotating cylinder (4-3) is fitted over a fixed cylinder (4-1); the two ends of the rotating cylinder (4-3) are rotatably connected to the top and bottom fixed cylinders (4-1) respectively; the rotating cylinder (4-3) is provided with a thickened annular impact wall in the annular gap area between two adjacent fixed cylinders (4-1), and the inner diameter of the annular impact wall is the same as the inner diameter of the fixed cylinder (4-1); The motor (4-4) is mounted on the fixed cylinder (4-1), and the output shaft of the motor (4-4) is connected to the rotating cylinder (4-3) for transmission. The rotating shaft (4-5) is rotatably connected to the fixed cylinder (4-1) through a hollow bracket; the top of the rotating shaft (4-5) is connected to the drive motor installed on the top of the premixing device (2); Centrifuge discs (4-6) are arranged at intervals along the axial direction of the rotating shaft (4-5), and the centrifuge discs (4-6) correspond one-to-one with the multiple annular impact walls of the rotating cylinder (4-3); There are multiple guide trays (4-7), each located above a number of centrifugal trays (4-6); the guide trays (4-7) have an inverted trumpet-shaped structure, and their large end is fastened to the corresponding fixed cylinder (4-1).

3. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 2, characterized in that, The centrifuge disc (4-6) has multiple baffles (4-8) fastened to its surface, and the baffles (4-8) are arranged radially.

4. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 2 or 3, characterized in that, The centrifuge discs (4-6) have a conical structure.

5. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 2 or 3, characterized in that, The centrifuge discs (4-6) have a screen structure on their surface.

6. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 2, characterized in that, The connecting rod (4-2) is equipped with a scraper (4-9) at the position of the corresponding annular impact wall of the rotating cylinder (4-3).

7. The mixing apparatus for producing standard bricks from waste desulfurization ash as described in claim 2 or 6, characterized in that, The connecting rod (4-2) has a triangular prism structure.

8. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 1, characterized in that, The rotation direction of the rotating cylinder (4-3) is opposite to that of the centrifugal disc (4-6).

9. The mixing device for producing standard bricks from waste desulfurization ash as described in claim 2, characterized in that, The mixing and stirring device (3) and the premixing and stirring device (2) share the same power drive device.

10. The mixing apparatus for producing standard bricks from waste desulfurization ash as described in claim 1, characterized in that, The premixing device (2) is a horizontal twin-shaft mixer with a screen installed at its feed inlet; the mixing device (3) is a horizontal mixer.

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