Low-density calcium silicate board raw material mixing and stirring tool

Abstract

The utility model discloses a low-density calcium silicate board raw material mixing and stirring tool, which relates to the technical field of stirring and mixing, and comprises a rack, a feeding hole and a driving motor are arranged on the upper surface of the rack, a stirring box is arranged in the rack, an output shaft of the driving motor is fixedly connected with a stirring rod, and the annular side surface of the stirring rod is fixedly connected with a pushing plate and a crushing plate I; the second crushing plate is dynamically attached to the bottom face of the supporting frame through elastic supporting of the double reset springs, when lime blocks are pushed to a crushing area by the first crushing plate, the second crushing plate overcomes the elastic force of the reset springs to move upwards under the dual pressure of the lime blocks and the first crushing plate, a dynamic extrusion gap is formed, and according to the crushing mechanism based on elastic self-adaption, the crushing efficiency is improved, and the crushing efficiency is improved. The crushing strength can be automatically adjusted according to the hardness and size of lime blocks, it is guaranteed that the lime blocks are fully crushed to the required particle size, the lime blocks which are not completely crushed are prevented from entering the stirring link, and the raw material mixing uniformity is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring and mixing, in particular to a tool for mixing and stirring raw materials of low-density calcium silicate boards. Background Art

[0002] Low-density calcium silicate board is a lightweight, high-strength new building material. The uniformity of raw material mixing during its production directly determines the physical properties of the board and the qualified rate of the finished product. The raw material system is mainly composed of a proportional mixture of siliceous materials (quartz sand, fly ash, etc.), calcium materials (lime, cement, etc.), reinforcing fibers, and additives. Lime is a key calcium raw material, and its particle size and dispersion state significantly affect the silicon-calcium ratio balance and the sufficiency of the hydration reaction. In the existing production process, the raw material mixing process faces the problem of incomplete crushing of bulk materials:

[0003] Lime raw materials often form lumps due to humidity fluctuations in the storage environment. Traditional mixing equipment (such as twin-shaft mixers and plowshare mixers) primarily rotates the material radially, causing lime lumps larger than 5mm in diameter to enter the mixing system. These unbroken lime lumps can cause uneven strength and surface bulging in the hardened slabs, increasing the defective rate.

[0004] Although some equipment is equipped with screens for pre-treatment, the screens and crushing mechanisms operate independently. Large particles of material tend to accumulate and clog the screen surface, requiring regular shutdown and cleaning, which shortens the effective operation time of the production line.

[0005] In response to the above problems, it is urgent to develop a mixing tool that integrates screening, crushing and dispersing functions, and realize the continuity and refinement of the raw material pretreatment link through structural optimization, so as to provide equipment support for the stable production of low-density calcium silicate board. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides a low-density calcium silicate board raw material mixing and stirring tool to solve the problem that conventional stirring blades are mainly used to turn over materials and lack the ability to shear and crush lumps. If the lumps and powders in the lime raw materials are mixed and directly stirred, it will cause local silicon-calcium ratio imbalance and insufficient hydration reaction, affecting the strength and flatness of the board, causing subsequent raw materials to easily agglomerate when exposed to water, resulting in local agglomeration of the slurry.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A low-density calcium silicate board raw material mixing and stirring tool comprises a frame, the upper surface of which is provided with a feed port and a drive motor, and is characterized in that a stirring box is provided in the frame, the output shaft of the drive motor extends into the interior of the stirring box and is coaxially fixedly connected to a stirring rod, and the annular side of the stirring rod is fixedly connected to a push plate and a crushing plate;

[0009] The inner wall of the mixing box is fixedly connected with a screen and a support frame, and the support frame is a frame structure and a second crushing plate is movably embedded therein;

[0010] The opposing surfaces of the crushing plate 1 and the crushing plate 2 are both inclined and are equipped with uniform crushing rollers. The crushing plate 1 rotates with the stirring rod and forms an extrusion fit with the crushing plate 2.

[0011] A guide plate is fixedly connected to the lower surface of the stirring rod, a connecting ring is fixedly connected to the inner wall of the stirring box, and a group of connecting rods is fixedly connected to the inner wall of the connecting ring.

[0012] Preferably, a group of dispersion rods are fixedly connected to the surface of the guide plate.

[0013] Preferably, two protective sleeves are fixedly connected to the upper surface of the second crushing plate;

[0014] The two protective sleeves are movably connected to the support frame, and the inner top surfaces of the two protective sleeves are fixedly connected with reset springs. The upper surface of the support frame is provided with a rectangular frame groove and a circular clamping groove.

[0015] Preferably, a protective plate is fixedly connected to the upper surface of the second crushing plate, the protective plate is inserted into the frame groove, the protective sleeve is inserted into the card slot, and the lower end of the reset spring is fixed to the upper surface of the support frame.

[0016] Preferably, a group of connecting rods is arranged alternately with a group of dispersion rods.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The crushing plate 1 on the surface of the stirring rod and the fixed crushing plate 2 constitute the crushing mechanism. Both are made of high-strength wear-resistant alloy material and are arranged in a complementary inclined manner. The crushing plate 2 is elastically supported by double reset springs to form a dynamic fit with the bottom surface of the support frame. When the lime block is pushed to the crushing area by the crushing plate 1, the crushing plate 2 overcomes the elastic force of the reset spring under the dual pressure of the lime block and the crushing plate 1 and moves upward to form a dynamic extrusion gap. This crushing mechanism based on elastic self-adaptation can automatically adjust the crushing force according to the hardness and size of the lime block, ensuring that the lime block is fully crushed to the required particle size, avoiding incompletely crushed lime blocks from entering the mixing link, and ensuring the uniformity of raw material mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 This is the overall structural diagram of the utility model;

[0021] Figure 2 This is a frame structure diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 4 This is a structural diagram of the protective plate and protective cover in the utility model;

[0024] Figure 5 This is a structural diagram of the guide plate in the utility model;

[0025] Figure 6 This is a structural diagram of the support frame in the utility model.

[0026] Legend: 1. Frame; 2. Feed port; 3. Drive motor; 4. Mixing box; 5. Screen; 6. Mixing rod; 7. Push plate; 8. Crushing plate 1; 9. Support frame; 10. Connecting ring; 11. Guide plate; 12. Connecting rod; 13. Crushing plate 2; 14. Protective cover; 15. Protective plate; 16. Return spring. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a low-density calcium silicate board raw material mixing and stirring tool, which effectively solves the problem that conventional stirring blades are mainly used to turn over materials and lack the ability to shear and crush lumps. If the lumps and powders in the lime raw materials are mixed and directly stirred, it will cause local silicon-calcium ratio imbalance and insufficient hydration reaction, affecting the strength and flatness of the board, causing subsequent raw materials to easily agglomerate when exposed to water, and the problem of local agglomeration of the slurry. When the lime block is pushed to the crushing area by the crushing plate one, the crushing plate two overcomes the elastic force of the return spring under the dual pressure of the lime block and the crushing plate one and moves upward to form a dynamic extrusion gap. This crushing mechanism based on elastic self-adaptation can automatically adjust the crushing force according to the hardness and size of the lime block, ensure that the lime block is fully crushed to the required particle size, avoid incompletely crushed lime blocks from entering the stirring link, and ensure the uniformity of raw material mixing.

[0028] like Figures 1 to 6 As shown, the overall idea of ​​the technical solution in the embodiment of the present application is as follows:

[0029] In response to the problems existing in the prior art, the utility model provides a low-density calcium silicate board raw material mixing and stirring tool, comprising a frame 1, the upper surface of the frame 1 is provided with a feed port 2 and a drive motor 3, a mixing box 4 is provided in the frame 1, the output shaft of the drive motor 3 extends into the interior of the mixing box 4 and is coaxially fixedly connected to a mixing rod 6, the annular side of the mixing rod 6 is fixedly connected to a push plate 7 and a crushing plate 1 8; wherein, the inner wall of the mixing box 4 is fixedly connected to a screen 5 and a support frame 9, the support frame 9 is a frame structure and a crushing plate 2 13 is movably embedded therein; the opposing surfaces of the crushing plate 1 8 and the crushing plate 2 13 are both inclined surfaces and are equipped with uniform crushing rollers, the crushing plate 1 8 rotates with the stirring rod 6, and forms an extrusion fit with the crushing plate 2 13; the lower surface of the stirring rod 6 is fixedly connected to a guide plate 11, the inner wall of the mixing box 4 is fixedly connected to a connecting ring 10, and the inner wall of the connecting ring 10 is fixedly connected to a group of connecting rods 12;

[0030] A group of dispersion rods are fixedly connected to the surface of the guide plate 11, and two protective sleeves 14 are fixedly connected to the upper surface of the crushing plate 13; wherein, the two protective sleeves 14 are movably connected to the support frame 9, and the inner top surfaces of the two protective sleeves 14 are fixedly connected to the return spring 16, and the upper surface of the support frame 9 is provided with a rectangular frame groove and a circular groove;

[0031] A protective plate 15 is fixedly connected to the upper surface of the crushing plate 2 13, the protective plate 15 is inserted into the frame groove, the protective sleeve 14 is inserted into the card slot, the lower end of the return spring 16 is fixed to the upper surface of the support frame 9, and a group of connecting rods 12 are respectively arranged alternately with a group of dispersion rods;

[0032] The crushing plate 1 8 is located below the pushing plate 7 and receives the lime blocks pushed away from the screen 5.

[0033] When the driving motor 3 is powered on and started, its output shaft drives the stirring rod 6 to perform circular motion. The lime raw material is put into the stirring box 4 through the feed port 2 and first contacts the horizontally arranged screen 5. The screen 5 is made of stainless steel woven mesh and performs preliminary separation of block and powdered lime. The powdered lime with the required particle size passes through the screen 5 and directly enters the stirring area, while the lime blocks with excessive particle size are temporarily stored on the surface of the screen 5. This design effectively avoids the interference of large particles of lime on the subsequent stirring uniformity. As the stirring rod 6 continues to rotate, the pushing plate 7 fixed on it runs synchronously. The pushing plate 7 uses the rotational force to bring the lime blocks retained on the screen 5 to the crushing plate 8, and pushes them into the support frame 9 together with the crushing plate 8. This structure realizes the automatic sorting and Transfer, replacing manual intervention, improving production efficiency, and avoiding the accumulation of lime blocks to block the screen 5, ensuring the continuity of the screening process. Inside the support frame 9, the crushing plate 1 8 and the fixedly installed crushing plate 2 13 constitute a crushing mechanism. Both are made of high-strength wear-resistant alloy and are in a complementary inclined layout. When the lime block is pushed to the crushing area by the crushing plate 1 8, the crushing plate 2 13 overcomes the elastic force of the reset spring 16 under the dual pressure of the lime block and the crushing plate 1 8 and moves upward to form a dynamic extrusion gap. This crushing mechanism based on elastic self-adaptation can automatically adjust the crushing force according to the hardness and size of the lime block, ensuring that the lime block is fully crushed to the required particle size, avoiding incompletely crushed lime blocks from entering the mixing link, and ensuring the uniformity of raw material mixing.

[0034] Two protective sleeves 14 are fixedly connected to the upper surface of the crushing plate 2 13, and the two protective sleeves 14 are movably connected to the support frame 9. The upper surface of the crushing plate 2 13 is fixedly connected with a protective plate 15, and the protective plate 15 is movably connected to the support frame 9. A group of connecting rods 12 are staggered with a group of dispersion rods. After crushing is completed, the stirring rod 6 continues to operate, driving other raw materials and water to mix in the mixing box 4. The guide plate 11 fixed on the stirring rod 6 adopts a conical structure, which generates centrifugal force and diversion effect during rotation, and diffuses the mixed material to the surrounding of the mixing box 4. The dispersion rods vertically distributed on the surface of the guide plate 11 are staggered with the connecting rod 12 on the connecting ring 10 to form a three-dimensional breaking up structure. During the flow of materials, the dispersion rods and the connecting rods 12 forcibly separate the agglomerated materials through shearing and tearing. Their staggered motion trajectory can cover the entire stirring area, effectively solving the problem of local agglomeration of the slurry caused by the adhesion of lime when it meets water, ensuring the uniformity and fluidity of the mixed slurry, and providing a high-quality raw material foundation for subsequent plate forming.

[0035] Among them, the frame 1 is used to support and fix the feed port 2, drive motor 3 and mixing box 4 and other components to ensure the stability of the overall structure of the mixing tool and provide an installation foundation for mixing the raw materials;

[0036] The feed port 2 facilitates the input of raw materials such as lime into the mixing box 4 and is the entrance for the raw materials to enter the mixing tool, ensuring that the raw materials can smoothly enter the mixing process;

[0037] The driving motor 3 provides power for the stirring rod 6 to rotate, driving the stirring rod 6 to perform circular motion, so that the components on the stirring rod 6 can work normally and realize the stirring function;

[0038] The mixing box 4 is the place where the raw materials are mixed and stirred, providing space for the raw materials to be stirred. Its inner wall can avoid material residue and ensure the smooth progress of the stirring process;

[0039] Screen 5 performs preliminary screening on the lime raw materials to separate the lumpy and powdered lime, preventing large particles of lime from affecting the subsequent mixing uniformity and ensuring the uniformity of the raw material particle size;

[0040] The stirring rod 6 drives the push plate 7, the crushing plate 8, the guide plate 11 and other components to rotate, realizing the functions of pushing the lime blocks, crushing the lime blocks and dispersing the raw materials, and is the core component of the mixing;

[0041] The push plate 7 rotates with the stirring rod 6, pushing the lime blocks retained on the screen 5 into the support frame 9, realizing automatic sorting and transfer of the lime blocks, avoiding blockage of the screen 5 and improving efficiency;

[0042] Crushing plate 1 8 cooperates with crushing plate 2 13 to push the lime blocks to the crushing area, and crush the lime blocks by squeezing to ensure that the lime blocks are fully crushed and the raw materials are evenly mixed;

[0043] The support frame 9 supports the crushing plate 2 13, and forms a crushing area with the crushing plate 1 8, providing a place for the crushing of lime blocks and ensuring a stable crushing process;

[0044] The connecting ring 10 fixes the connecting rod 12 so that the connecting rod 12 and the dispersion rod are arranged alternately to form a three-dimensional breaking up structure, which is used to break up the agglomerated materials and ensure the slurry is uniform;

[0045] The guide plate 11 rotates with the stirring rod 6, using centrifugal force and diversion effect to spread the material to the surrounding of the stirring box 4, expanding the material flow range and avoiding stirring dead corners;

[0046] The connecting rod 12 is staggered with the dispersion rod, which breaks up the agglomerated materials by shearing and tearing when the material flows, solves the problem of local agglomeration of the slurry, and ensures uniform mixing;

[0047] Crushing plate 2 13 cooperates with crushing plate 1 8, moves upward under pressure to form an extrusion gap, crushes the lime blocks, and can automatically adjust the crushing force according to the condition of the lime blocks;

[0048] The protective sleeve 14 is sleeved on the support frame 9 to protect the reset spring 16, reduce the friction and wear when the crushing plate 13 moves, and extend the service life of the components;

[0049] The protective plate 15 is movably connected to the support frame 9 to protect the upper surface of the crushing plate 13 to avoid direct impact and wear on the crushed lime blocks;

[0050] The return spring 16 provides elastic support for the crushing plate 2 13, so that the crushing plate 2 13 dynamically fits the bottom surface of the support frame 9, achieving elastic adaptive crushing and ensuring the crushing effect.

[0051] Example 1 (basic crushing and stirring structure):

[0052] This embodiment discloses a mixing and stirring tool for low-density calcium silicate board raw materials, comprising a frame 1, with a feed port 2 and a drive motor 3 fixed to its upper surface. A mixing box 4 is welded to the interior of the frame 1. The output shaft of the drive motor 3 is rigidly connected to a stirring rod 6 via a coupling. The stirring rod 6 extends through the top of the mixing box 4 and into the interior. A push plate 7 and a crushing plate 8 are welded to its annular side.

[0053] A stainless steel screen 5 (3mm mesh diameter) is welded to the inner wall of the mixing box 4. Below the screen 5 is a support frame 9, which is a rectangular frame with a second crushing plate 13 movably embedded inside. Two return springs 16 are located between the second crushing plate 13 and the support frame 9. A guide plate 11 is welded to the lower end of the stirring rod 6. A connecting ring 10 is welded to the corresponding position on the inner wall of the mixing box 4. Four connecting rods 12 are evenly welded to the inner wall of the connecting ring 10.

[0054] By cooperating with the crushing plate 1 8 and the elastically supported crushing plate 2 13, the self-adaptive crushing of the lime blocks is achieved, the qualified rate of the particle size after crushing is improved, and the problem of block residue in traditional equipment is solved.

[0055] Example 2 (enhanced crushing protection):

[0056] Based on Example 1, this embodiment optimizes the protection of the crushing plate 2 13: two cylindrical protective sleeves 14 are welded on the upper surface of the crushing plate 2 13, and the protective sleeves 14 are made of polytetrafluoroethylene, and their inner diameters are gap-matched with the vertical rods of the support frame 9; the edges of the crushing plate 2 13 are bent upward to form an L-shaped protective plate 15, and the protective plate 15 slides and fits with the inner wall of the support frame 9.

[0057] The protective sleeve 14 prevents the return spring 16 from being blocked by lime powder, thereby extending the service life of the spring; the protective plate 15 reduces the wear of the support frame 9 caused by material splashing during crushing, thereby extending the equipment maintenance cycle.

[0058] Example 3 (dispersion efficiency enhanced type):

[0059] Based on Example 1, this example strengthens the dispersion function: 6 dispersion rods are welded radially on the outer peripheral surface of the guide plate 11, and the ends of the dispersion rods are processed into hemispherical ends; 6 connecting rods 12 are welded on the inner wall of the connecting ring 10, and the connecting rods 12 and the dispersion rods are staggered in the vertical direction to form a three-dimensional shear net.

[0060] The staggered shearing of the dispersion rods and the connecting rods 12 significantly reduces the particle size of the material agglomerates, improves the flexural strength of the plate, and solves the problem of local agglomeration of the slurry.

[0061] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A low-density calcium silicate board raw material mixing and stirring tool, comprising a frame (1), wherein the upper surface of the frame (1) is provided with a feed port (2) and a drive motor (3), characterized in that: A stirring box (4) is provided in the frame (1), the output shaft of the driving motor (3) extends into the stirring box (4) and is coaxially fixedly connected to a stirring rod (6), and a pushing plate (7) and a crushing plate (8) are fixedly connected to the annular side surface of the stirring rod (6); The inner wall of the mixing box (4) is fixedly connected with a screen (5) and a support frame (9), and the support frame (9) is a frame structure and a second crushing plate (13) is movably embedded therein; The opposing surfaces of the crushing plate 1 (8) and the crushing plate 2 (13) are both inclined surfaces and are equipped with uniform crushing rollers. The crushing plate 1 (8) rotates with the stirring rod (6) and forms an extrusion fit with the crushing plate 2 (13); A guide plate (11) is fixedly connected to the lower surface of the stirring rod (6), a connecting ring (10) is fixedly connected to the inner wall of the stirring box (4), and a group of connecting rods (12) are fixedly connected to the inner wall of the connecting ring (10).

2. The low-density calcium silicate board raw material mixing and stirring tool according to claim 1, characterized in that: A group of dispersion rods are fixedly connected to the surface of the guide plate (11).

3. The low-density calcium silicate board raw material mixing and stirring tool according to claim 2, characterized in that: Two protective sleeves (14) are fixedly connected to the upper surface of the second crushing plate (13); The two protective sleeves (14) are movably connected to the support frame (9), and the inner top surfaces of the two protective sleeves (14) are fixedly connected to the return springs (16). The upper surface of the support frame (9) is provided with a rectangular frame groove and a circular clamping groove.

4. The low-density calcium silicate board raw material mixing and stirring tool according to claim 3, characterized in that: The upper surface of the second crushing plate (13) is fixedly connected with a protective plate (15), the protective plate (15) is inserted into the frame groove, the protective sleeve (14) is inserted into the card slot, and the lower end of the reset spring (16) is fixed to the upper surface of the support frame (9).

5. The low-density calcium silicate board raw material mixing and stirring tool according to claim 4, characterized in that: A group of connecting rods (12) are respectively arranged in an interlaced manner with a group of dispersion rods.

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