Lightweight brick raw material mixing and stirring equipment and process
By combining the pretreatment mechanism and the stirring shaft design, the problem of hard core caused by the agglomeration of powdered materials was solved, achieving efficient and uniform mixing of lightweight brick raw materials and improving the structural strength and mixing efficiency of lightweight bricks.
Patent Information
- Application Number
- CN202511955884.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-02-17
AI Technical Summary
In the prior art, powdered materials are prone to agglomeration during storage and transportation, resulting in a hard core inside the lightweight bricks after molding, which affects the structural strength, and uneven mixing leads to low mixing efficiency.
The pretreatment mechanism includes a crushing chamber and a screening screen. The agglomerated material is crushed and screened by the impact plate and the screening screen. Combined with the design of the stirring shaft and stirring blades, the uniform dispersion and mixing of the cementitious material is achieved.
It effectively breaks up lumps, improves the mixing efficiency and uniformity of cementitious materials, reduces mixing time, prevents the formation of hard cores, and enhances the structural strength and mixing quality of lightweight bricks.
Smart Images
Figure CN121535845A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building material processing technology, and more specifically, to a lightweight brick raw material mixing and stirring equipment and process. Background Technology
[0002] Lightweight bricks are widely used in building walls and roof insulation due to their light weight, excellent thermal insulation and sound insulation properties. Their core performance depends on the uniformity of the raw material mixing, especially the homogeneity of cementitious materials such as cement and fly ash, lightweight aggregates such as ceramsite and perlite, foaming agents and admixtures. Therefore, raw material mixing equipment is required to mix the raw materials.
[0003] Because the raw materials contain powdered materials such as cement and fly ash, these materials are prone to clumping during storage and transportation. If the powdered materials are directly added to the mixing equipment, the clumped raw materials will be difficult to mix evenly, resulting in a hard core inside the lightweight bricks after molding, which affects the structural strength of the lightweight bricks. Extending the mixing time would require more time, leading to a decrease in mixing efficiency. Summary of the Invention
[0004] To address the problems existing in the prior art, the present invention aims to provide a lightweight brick raw material mixing and stirring equipment and process to solve the problem that it is difficult to stir evenly after lumpy raw materials are mixed in, resulting in a hard core inside the lightweight brick after molding, which affects the structural strength.
[0005] To solve the above problems, the present invention adopts the following technical solution: A lightweight brick raw material mixing and stirring device includes a mixing tank and a base. The mixing tank is fixedly connected to the upper surface of the base, and a discharge port is connected to the lower end of the mixing tank. It also includes a raw material processing mechanism located at the top of the mixing tank. The raw material processing mechanism includes a pretreatment chamber fixedly connected to the top of the mixing tank. A feed pipe is fixedly inserted inside the top of the pretreatment chamber, and a feeding pipe is fixedly inserted inside the top of the pretreatment chamber. The feeding pipe is connected to the top of the mixing tank, and a crushing chamber is connected to the bottom end of the feed pipe. A rotating shaft is rotatably connected inside the crushing chamber. A first motor is fixedly connected inside the pretreatment chamber, and the output shaft of the first motor is fixedly connected to the rotating shaft. Multiple striking plates are fixedly connected to the surface of the rotating shaft. A discharge pipe is connected to the surface of the feeding pipe and is fixedly inserted into the top of the mixing tank.
[0006] Furthermore, a movable sealing plate is slidably inserted inside the right side of the discharge pipe, a screening screen plate is fixedly connected to the left surface of the movable sealing plate, a support plate is fixedly connected to the right surface of the movable sealing plate, a support plate is fixedly connected to the right surface of the discharge pipe, and a first spring is fixedly connected between the support plate and the support plate.
[0007] Furthermore, a passive magnet is fixedly connected to the lower rear surface of the supporting cross plate, a swing arm is fixedly connected to the surface of the rotating shaft, and an active magnet is fixedly connected to the bottom end of the swing arm. The active magnet and the passive magnet have the same pole on the side that is close to each other.
[0008] Furthermore, a stirring shaft is rotatably connected inside the mixing tank, and a dispersing disc is fixedly connected to the top of the mixing tank. The dispersing disc is fitted onto the surface of the stirring shaft, and multiple push plates are fixedly connected to the surface of the stirring shaft. All of the push plates are arc-shaped, and multiple dispersing holes are opened on the surface of the dispersing disc.
[0009] Furthermore, it also includes a mixing auxiliary mechanism, which is disposed inside the mixing tank. The mixing auxiliary mechanism includes a second motor fixedly connected to the base. The output shaft of the second motor is fixedly connected to a drive gear, and a driven gear is fixedly sleeved at the bottom end of the stirring shaft. The drive gear and the driven gear mesh with each other.
[0010] Furthermore, the stirring shaft is a hollow structure, and a water supply pipe is fixedly inserted inside the base. The water supply pipe is rotatably connected to the stirring shaft through a rotary joint. Multiple sets of mixing blades are connected to the surface of the stirring shaft. The multiple sets of mixing blades are arranged in groups of four, and multiple drainage holes are opened on the lower surface of the mixing blades.
[0011] Furthermore, the inner wall of the mixing tank is fixedly connected with a plurality of sealing strips, and the plurality of sealing strips are respectively attached to the lower surface of the plurality of mixing and stirring blades.
[0012] Furthermore, four chucks are rotatably connected to the top of the stirring shaft, and a support ring is fixedly connected to the top of the mixing tank. Multiple guide rods are inserted inside the support ring, and the multiple guide rods are divided into four groups. Each of the four groups of guide rods is fixedly connected to a locking block that cooperates with the chucks at one end. A second spring is fixedly connected between the locking block and the support ring.
[0013] Furthermore, a plurality of guide stirring blades are fixedly connected to the surface of the stirring shaft, and the plurality of guide stirring blades are all inclined.
[0014] A lightweight brick raw material mixing process includes the following steps: First, the cementitious material is conveyed to the crushing chamber through the feed pipe, while the lightweight aggregate is conveyed to the mixing tank through the feeding pipe; Subsequently, the first motor drives the striking plate to rotate, which contacts and strikes the clumped cementitious material; Subsequently, the cementitious material can be pushed to the discharge pipe by the tapping plate and then enter the mixing tank; Subsequently, the cementitious material that was not crushed but was still in the form of large clumps was caught by the screening screen. Next, the clumps of cementitious material on the screening screen are pushed upwards, causing the clumps of cementitious material to be struck again by the slapping plate. Subsequently, the cementitious material fell onto the dispersion disc; Next, a second motor drives the stirring shaft and mixing blades to rotate; Meanwhile, the water source is discharged through the drain hole; At the same time, the pusher plate pushes the gelling material on the dispersion plate to spread it out and drop it into the mixing tank through the dispersion holes; Finally, the raw materials are mixed and stirred.
[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) In this scheme, the first motor drives the tapping plate to rotate. When the tapping plate rotates, it can break up the clumps of cementitious material, prevent the clumps of cementitious material from entering the mixing tank and forming a hard core after stirring, and improve the mixing efficiency of the cementitious material.
[0016] (2) When the cementitious material enters the discharge pipe, the screening screen can catch some of the cementitious material that has not been crushed and is still in the form of large particles, and push the cementitious material that has agglomerated on the screening screen upward, so that the agglomerated cementitious material can be hit by the pounding plate again, and further crush the agglomerated cementitious material.
[0017] (3) When the cementitious material enters the mixing tank, the stirring shaft drives the push plate to rotate, which can push the cementitious material that falls on the dispersion plate to spread it out and fall into the mixing tank through the dispersion hole in turn. This can make the cementitious material disperse more evenly, reduce the time required for subsequent mixing operations, and improve mixing efficiency and mixing quality.
[0018] (4) In this scheme, after the raw materials enter the mixing tank, the water source is discharged through the mixing and stirring blades and the drain hole. The water source is injected over a wide area while mixing to prevent the water from concentrating in a local area and causing uneven drying of the raw materials. This can further reduce the mixing time and improve the mixing efficiency and mixing quality.
[0019] (5) During the rotation of the stirring shaft, the guide stirring blades can be driven to rotate simultaneously, which can make the raw materials flow downwards and effectively control the floating of lightweight aggregates in the raw materials, preventing the density difference between the upper and lower parts of the raw materials from being too large, thus affecting the mixing quality of the raw materials. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the pretreatment chamber of the present invention; Figure 3 This is a schematic diagram of the internal structure of the crushing chamber of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the striking plate part of the present invention; Figure 6 This is a schematic diagram of the internal structure of the mixing tank of the present invention; Figure 7 This is a schematic diagram of the structure of the flow guiding and stirring blade part of the present invention; Figure 8 This is a schematic diagram of the structure of the dispersion disc part of the present invention; Figure 9 This is a schematic diagram of the mixing blades and sealing strips of the present invention; Figure 10 This is a schematic diagram of the structure of the driving gear and the driven gear of the present invention; Figure 11 This is a schematic diagram of the chuck wheel and chuck block of the present invention.
[0021] Explanation of the labels in the diagram: 1. Mixing tank; 2. Base; 3. Discharge port; 401. Pretreatment bin; 402. Feeding pipe; 403. Feeding pipe; 404. Crushing bin; 405. First motor; 406. Impact plate; 407. Discharge pipe; 408. Rotating shaft; 409. Moving enclosed plate; 410. Screening screen; 411. Support plate; 412. First spring; 413. Supporting cross plate; 414. Passive magnet block; 415. Active magnet block; 416. Swing arm; 501. Stirring shaft; 502. Guide stirring blade; 503. Mixing stirring blade; 504. Enclosing slats; 505. Dispersion disc; 506. Support ring; 507. Push plate; 508. Drain hole; 509. Second spring; 510. Guide rod; 511. Locking block; 512. Locking wheel; 513. Dispersion hole; 514. Second motor; 515. Drive gear; 516. Driven gear; 517. Water supply pipe; 518. Rotary joint. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Please see Figures 1-7 A lightweight brick raw material mixing and stirring device includes a mixing tank 1 and a base 2. The mixing tank 1 is fixedly connected to the upper surface of the base 2. The lower end of the mixing tank 1 is connected to a discharge port 3. The device also includes a raw material processing mechanism located at the top of the mixing tank 1. The raw material processing mechanism includes a pretreatment chamber 401 fixedly connected to the top of the mixing tank 1. A feed pipe 403 and a feeding pipe 402 are fixedly inserted into the top of the pretreatment chamber 401. The feeding pipe 402 is connected to the top of the mixing tank 1. The bottom end of the feeding pipe 403 is connected to the crushing chamber 404. The crushing chamber 404 is rotatably connected to the inside of the crushing chamber 404. The pretreatment chamber 401 is fixedly connected to the inside of the first motor 405. The output shaft of the first motor 405 is fixedly connected to the rotating shaft 408. Multiple tapping plates 406 are fixedly connected to the surface of the rotating shaft 408. The surface of the feeding pipe 402 is connected to the discharge pipe 407. The discharge pipe 407 is fixedly inserted into the top of the mixing tank 1.
[0024] The discharge pipe 407 has a movable sealing plate 409 slidably inserted inside its right side. A screening screen plate 410 is fixedly connected to the left surface of the movable sealing plate 409, and a support plate 413 is fixedly connected to the right surface of the movable sealing plate 409. A support plate 411 is fixedly connected to the right surface of the discharge pipe 407. A first spring 412 is fixedly connected between the support plate 411 and the support plate 413. A passive magnet block 414 is fixedly connected to the lower rear end surface of the support plate 413. A swing arm 416 is fixedly connected to the surface of the rotating shaft 408. An active magnet block 415 is fixedly connected to the bottom end of the swing arm 416. The active magnet block 415 and the passive magnet block 414 have the same pole on their sides that are close to each other.
[0025] The mixing tank 1 is rotatably connected to a stirring shaft 501, and a dispersing disc 505 is fixedly connected to the top of the mixing tank 1. The dispersing disc 505 is fitted onto the surface of the stirring shaft 501. Multiple push plates 507 are fixedly connected to the surface of the stirring shaft 501. All push plates 507 are arc-shaped. Multiple dispersing holes 513 are opened on the surface of the dispersing disc 505.
[0026] By adopting the above technical solution, when mixing raw materials, the cementitious material is conveyed to the crushing chamber 404 through the feed pipe 403. At the same time, the first motor 405 drives the rotating shaft 408 to rotate, which in turn drives the striking plate 406 to rotate. When the striking plate 406 rotates, it will contact and strike the clumped cementitious material, thus breaking up the clumped cementitious material. Then, the cementitious material can be pushed to the discharge pipe 407 by the pushing of the striking plate 406, and then enter the mixing tank 1. Lightweight aggregates are conveyed to the mixing tank 1 through the feeding pipe 402 to complete the addition of raw materials. This prevents the clumped cementitious material from entering the mixing tank 1 and forming a hard core after stirring, and improves the mixing efficiency of the cementitious material.
[0027] When the cementitious material enters the discharge pipe 407, the screening screen 410 can catch some of the cementitious material that has not been crushed and is still in the form of larger particles. As the rotating shaft 408 rotates, it drives the swing arm 416 and the active magnet block 415 to rotate. When the active magnet block 415 rotates to below the passive magnet block 414, the active magnet block 415 and the passive magnet block 414 repel each other, thereby pushing the passive magnet block 414 and the screening screen 410 upwards. At this time, the first spring 412 is in a compressed state, which can... The agglomerated cementitious material on the screening screen plate 410 is pushed upward, which allows the agglomerated cementitious material to be struck again by the striking plate 406, further crushing the agglomerated cementitious material. When the active magnet block 415 passes the passive magnet block 414, the first spring 412 pushes the support plate 413 to move downward. This repetitive process can achieve repeated crushing of the agglomerated cementitious material that has not been completely crushed, and the resulting vibration can allow the cementitious material to be screened through the screening screen plate 410, preventing the cementitious material from clogging on the screening screen plate 410.
[0028] When the cementitious material enters the mixing tank 1, it first falls onto the dispersion plate 505. When the stirring shaft 501 rotates, it drives the push plate 507 to rotate counterclockwise. As the push plate 507 rotates counterclockwise, it can push and flatten the cementitious material that has fallen onto the dispersion plate 505 and let it fall into the mixing tank 1 through the dispersion holes 513 in sequence. This can make the cementitious material disperse more evenly, reduce the time required for subsequent mixing operations, and improve mixing efficiency.
[0029] like Figures 8-11As shown, it also includes a mixing auxiliary mechanism, which is disposed inside the mixing tank 1. The mixing auxiliary mechanism includes a second motor 514 fixedly connected to the inside of the base 2. The output shaft of the second motor 514 is fixedly connected to a drive gear 515. A driven gear 516 is fixedly sleeved at the bottom end of the stirring shaft 501. The drive gear 515 and the driven gear 516 mesh. The stirring shaft 501 has a hollow structure. A water supply pipe 517 is fixedly inserted inside the base 2. The water supply pipe 517 and the stirring shaft 501 are connected. The 01 and 1 are rotatably connected by a rotary joint 518. The rotary joint 518 can deliver water without affecting the normal rotation of the stirring shaft 501. The surface of the stirring shaft 501 is connected to multiple sets of mixing blades 503. The multiple sets of mixing blades 503 are four in a group. The lower surface of the mixing blades 503 is provided with multiple drainage holes 508. The inner wall of the mixing tank 1 is fixedly connected with multiple sealing strips 504. The multiple sealing strips 504 are respectively attached to the lower surface of the multiple mixing blades 503.
[0030] The top end of the stirring shaft 501 is rotatably connected to four rollers 512, and the top end of the mixing tank 1 is fixedly connected to a support ring 506. Multiple guide rods 510 are inserted inside the support ring 506. The multiple guide rods 510 are divided into four groups. The ends of the four groups of guide rods 510 that are close to each other are fixedly connected to a locking block 511 that cooperates with the rollers 512. A second spring 509 is fixedly connected between the locking block 511 and the support ring 506. Multiple guide stirring blades 502 are fixedly connected to the surface of the stirring shaft 501. The multiple guide stirring blades 502 are all inclined.
[0031] By adopting the above technical solution, after the raw materials enter the mixing tank 1, the second motor 514 drives the active gear 515 and the passive gear 516 to rotate, which in turn drives the stirring shaft 501 and the mixing blades 503 to rotate. When the mixing blades 503 rotate, water enters the stirring shaft 501 through the water supply pipe 517, then enters the mixing blades 503 and is discharged through the drain hole 508. Since the mixing blades 503 are at multiple heights and are in a rotating state, water is injected over a wide range while mixing, preventing water from concentrating in local areas and causing uneven drying of the raw materials. This can further improve mixing efficiency and reduce the mixing time.
[0032] During the mixing and stirring process, the chuck 512 also rotates synchronously, causing the chuck 512 to repeatedly disengage from and enter the chuck block 511. When the stirring shaft 501 stops rotating, the second spring 509, which is in a compressed state, can push the four chuck blocks 511 to apply pressure towards each other, thereby squeezing the chuck 512 and causing it to enter the chuck block 511. Since each chuck block 511 corresponds to the same longitudinally arranged closed strip 504, the stirring shaft 501 can drive the mixing blade 503 to rotate directly above the closed strip 504. The closed strip 504 blocks the drain hole 508, thereby preventing a large amount of raw material from flowing into the mixing blade 503 when stirring stops.
[0033] Because lightweight aggregate particles have low density and are prone to floating, the guide mixing blades 502 can be driven to rotate synchronously during the rotation of the mixing shaft 501. During the rotation of the guide mixing blades 502, the raw materials can flow downwards, which can effectively control the floating of lightweight aggregates in the raw materials and prevent the density difference between the upper and lower parts of the raw materials from being too large, thus affecting the mixing quality of the raw materials.
[0034] Instructions for use: First, the cementitious material is conveyed to the crushing chamber 404 through the feed pipe 403, while the lightweight aggregate is conveyed to the mixing tank 1 through the feed pipe 402. Subsequently, the first motor 405 drives the striking plate 406 to rotate, which contacts and strikes the clumped cementitious material; Subsequently, the cementitious material can be pushed to the discharge pipe 407 by the tapping plate 406, and then enter the mixing tank 1; Subsequently, the screening screen plate 410 catches some of the cementitious material that has not been crushed but is still in the form of large clumps. Next, the clumps of cementitious material on the screening screen plate 410 are pushed upward, causing the clumps of cementitious material to be struck again by the tapping plate 406. Subsequently, the cementitious material fell onto the dispersion disc 505; Next, the second motor 514 drives the stirring shaft 501 and the mixing blades 503 to rotate; Meanwhile, the water source is discharged through drain hole 508; At the same time, the push plate 507 pushes the cementitious material on the dispersion plate 505 to spread it out and drop it into the mixing tank 1 through the dispersion hole 513; Finally, the raw materials are mixed and stirred.
[0035] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.
Claims
1. A light brick raw material mixing and stirring device, comprising a mixing tank (1) and a base (2), the mixing tank (1) is fixedly connected to the upper surface of the base (2), and the lower end of the mixing tank (1) is communicated with a discharge port (3), characterized in that: Also include raw material processing mechanism, the raw material processing mechanism is arranged in the top of mixing tank (1), the raw material processing mechanism includes the pretreatment bin (401) fixedly connected to the top of mixing tank (1), the top inside of pretreatment bin (401) is fixedly inserted with feed pipe (403), the top inside of pretreatment bin (401) is fixedly inserted with feeding pipe (402), the feeding pipe (402) is communicated with the top of mixing tank (1), the bottom end of feed pipe (403) is communicated with the crushing bin (404), the inside of crushing bin (404) is rotatably connected with the shaft (408), the inside of pretreatment bin (401) is fixedly connected with the first motor (405), the output shaft of first motor (405) is fixedly connected with the shaft (408), the surface of shaft (408) is fixedly connected with multiple slapping plates (406), the surface of feeding pipe (402) is communicated with discharge pipe (407), and the discharge pipe (407) is fixedly inserted with the top of mixing tank (1).
2. A light brick raw material mixing and stirring apparatus according to claim 1, characterized in that: The inside of the right side of discharge pipe (407) is slidably inserted with a moving closure plate (409), the left surface of moving closure plate (409) is fixedly connected with a screening mesh plate (410), the right surface of moving closure plate (409) is fixedly connected with a support horizontal plate (413), the right surface of discharge pipe (407) is fixedly connected with a support plate (411), and the first spring (412) is fixedly connected between the support plate (411) and the support horizontal plate (413).
3. A light weight brick raw material mixing and stirring apparatus as claimed in claim 2 wherein: The rear end lower surface of support horizontal plate (413) is fixedly connected with a passive magnet block (414), the surface of shaft (408) is fixedly connected with an oscillating arm (416), the bottom end of oscillating arm (416) is fixedly connected with a driving magnet block (415), and the same polarity is on the side of driving magnet block (415) and passive magnet block (414) close to each other.
4. A light weight brick raw material mixing and stirring apparatus as claimed in claim 1, wherein: The inside of mixing tank (1) is rotatably connected with a stirring shaft (501), the inside top of mixing tank (1) is fixedly connected with a dispersion disc (505), the surface of dispersion disc (505) is sleeved with the surface of stirring shaft (501), the surface of stirring shaft (501) is fixedly connected with multiple push plates (507), multiple push plates (507) are all circular arc-shaped, and multiple dispersion holes (513) are formed in the surface of dispersion disc (505).
5. A light weight brick raw material mixing and stirring apparatus as claimed in claim 4 wherein: Also include mixing auxiliary mechanism, the mixing auxiliary mechanism is arranged in the inside of mixing tank (1), the mixing auxiliary mechanism includes the second motor (514) fixedly connected to the inside of base (2), the output shaft of second motor (514) is fixedly connected with a driving gear (515), the bottom end of stirring shaft (501) is fixedly sleeved with a driven gear (516), and the driving gear (515) is engaged with the driven gear (516).
6. A light weight brick raw material mixing and stirring apparatus as claimed in claim 4 wherein: The stirring shaft (501) is a hollow structure, a water delivery pipe (517) is fixedly arranged in the inside of the base (2), the water delivery pipe (517) is rotationally connected with the stirring shaft (501) through a rotary joint (518), the surface of the stirring shaft (501) is communicated with a plurality of groups of mixed stirring blades (503), four of the plurality of groups of mixed stirring blades (503) form one group, and a plurality of drainage holes (508) are arranged on the lower surface of the mixed stirring blade (503).
7. A light weight brick raw material mixing and stirring apparatus as claimed in claim 6 wherein: A plurality of closed slats (504) are fixedly connected to the inner wall of the mixing tank (1), and the plurality of closed slats (504) are respectively attached to the lower surfaces of the plurality of mixed stirring blades (503).
8. A light weight brick raw material mixing and stirring apparatus as claimed in claim 5 wherein: The top end of the stirring shaft (501) is rotationally connected with four clamping wheels (512), the top end of the mixing tank (1) is fixedly connected with a supporting ring (506), a plurality of guide rods (510) are arranged in the inside of the supporting ring (506), the plurality of guide rods (510) are evenly divided into four groups, one end of each of the four groups of guide rods (510) is fixedly connected with a clamping block (511) matched with the clamping wheel (512), and the clamping block (511) and the supporting ring (506) are fixedly connected with a second spring (509).
9. A light weight brick raw material mixing and stirring apparatus as claimed in claim 5 wherein: The surface of the stirring shaft (501) is fixedly connected with a plurality of flow guide stirring blades (502), and the plurality of flow guide stirring blades (502) are all arranged in an inclined manner.
10. A process for mixing and agitating the raw materials for light-weight bricks, suitable for use in the apparatus for mixing and agitating the raw materials for light-weight bricks according to any one of claims 1 to 9, characterized in that The method comprises the following steps: Firstly, the cementitious material is delivered from the feeding pipe (403) into the crushing bin (404), and the lightweight aggregate is delivered from the feeding pipe (402) into the mixing tank (1); Then, the first motor (405) drives the beating plate (406) to rotate, and the beating plate (406) contacts and beats the cementitious material in lumps; Then, the cementitious material is pushed to the discharge pipe (407) by the pushing of the beating plate (406) and then enters the mixing tank (1); Then, the cementitious material in lumps that is not crushed and still in large lumps is caught by the screening mesh (410); Then, the cementitious material in lumps on the screening mesh (410) is pushed upward, so that the cementitious material in lumps is beaten again by the beating plate (406); Then, the cementitious material falls onto the dispersing disc (505); Then, the second motor (514) drives the stirring shaft (501) and the mixed stirring blades (503) to rotate; At the same time, the water source is discharged through the drainage holes (508); At the same time, the pushing plate (507) pushes away the cementitious material on the dispersing disc (505) and spreads it flat and then drops it into the mixing tank (1) through the dispersing holes (513); Finally, the mixing and stirring of the raw materials are completed.