Crushing device for recovering defective magnesia-calcium bricks

Abstract

The invention discloses a crushing device for recovering defective magnesia-calcium bricks, and relates to the field of magnesia-calcium brick crushing, the crushing device comprises a bottom plate, the top of the bottom plate is fixedly connected with a storage box with the top provided with a cover plate, the storage box is used for storing finally crushed materials, the crushing device further comprises a classifying screen box, and the classifying screen box is provided with a vibration unit; the vibration unit is uniformly provided with three grading sieve plates with filter holes sequentially reduced in size, the grading sieve plates are used for accurately grading crushed magnesia-calcium brick particles, and the grading sieve box is connected with the storage box through a pipeline; the crushing unit is used for crushing defective magnesia-calcium bricks; the backflow unit is used for recycling unqualified large-particle stalks and putting the large-particle stalks into the smashing unit to be smashed again, defective magnesia-calcium bricks are put into the smashing unit, after graded smashing of the smashing unit, smashed particles can enter a grading screen box, unqualified particles can be isolated step by step, and the crushed particles can enter the grading screen box. And the materials are put into the crushing unit again through the backflow unit to be crushed again.

Description

Technical Field

[0001] The present invention relates to the technical field of magnesium-calcium brick crushing, and specifically to a crushing device for recycling defective magnesium-calcium bricks. Background Art

[0002] Magnesium-calcium bricks are high-quality refractory materials mainly composed of magnesium oxide (MgO) and calcium oxide (CaO). Magnesium oxide and calcium oxide endow it with excellent high-temperature resistance, enabling it to maintain a stable physical form in high-temperature environments, being not easily softened or deformed. Its erosion resistance is also extremely outstanding. Whether facing the chemical erosion of high-temperature slag or the erosion of high-temperature gas flow, it can effectively resist, ensuring the durability of use. In the steelmaking converters and refining furnaces in the metallurgical industry, magnesium-calcium bricks are often used as lining materials to withstand the erosion of high-temperature molten steel and slag; in the rotary kilns of the cement industry, it can also cope with the erosion of high-temperature materials and flames, ensuring the stable operation of the kiln. In addition, magnesium-calcium bricks are widely used in high-temperature industrial kilns such as glass kilns and non-ferrous metal smelting furnaces. Due to its environmental friendliness, under the current industrial trend of sustainable development, the application prospect of magnesium-calcium bricks is becoming increasingly broad.

[0003] When recycling defective magnesium-calcium bricks, it is necessary to crush them to facilitate subsequent processing. However, during the crushing process, there will be problems such as uneven crushing and low efficiency of defective magnesium-calcium bricks, resulting in the final crushed products not meeting the recycling standards. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is as follows: A crushing device for recycling defective magnesium-calcium bricks according to the present invention includes a bottom plate, and a storage box with a cover on the top is fixedly connected to the top of the bottom plate for storing the finally crushed materials. It further includes:

[0005] A grading sieve box, on which a vibration unit is provided. Three grading sieve plates with gradually decreasing filter hole sizes are evenly arranged on the vibration unit for precisely grading the crushed magnesium-calcium brick particles. The grading sieve box is connected to the storage box through a pipeline;

[0006] A crushing unit for crushing defective magnesium-calcium bricks;

[0007] A reflux unit for recycling unqualified larger particles and putting them into the crushing unit for re-crushing;

[0008] The crushing unit and the reflux unit are arranged on the top of the grading sieve box;

[0009] An outlet notch is provided at one end of the grading sieve box close to the pipeline, and a wind pressure device facing the outlet notch is further arranged on the inner wall of the grading sieve plate for blowing the crushed magnesium-calcium bricks into the storage box;

[0010] The crushing unit includes a grinding bin with a feed inlet at the top. The inner wall of the grinding bin is made of a flexible lining material, which has good wear resistance and a certain elasticity. The bottom of the grinding bin is provided with an inclined plate for guiding the movement of materials. A servo motor 1 is arranged on the outer surface of the grading sieve box. The output end of the servo motor 1 is fixedly connected with a rotating shaft, and three main discs are evenly arranged on the outer surface of the rotating shaft;

[0011] The crushing unit further includes a crushing roller unit for grading and grinding magnesia-calcia bricks.

[0012] Preferably, a flap is rotatably connected to the outer surface of the grinding bin, and a magnet 1 is arranged on the outer surface of the flap.

[0013] Preferably, the bottom of the grinding bin is fixedly connected to the top of the grading sieve box, and the bottom of the grading sieve box is fixedly connected to the top of the bottom plate.

[0014] Preferably, the crushing roller unit includes a rotating rod. The number of the rotating rods is three, and the lengths decrease sequentially from top to bottom;

[0015] A first cutter is arranged on the outer surface of the rotating rod at the top. The size of the first cutter is relatively large, and it mainly conducts primary coarse crushing on the large-sized defective magnesia-calcia bricks entering. One end of the rotating rod at the top is provided with a disc 1;

[0016] A second cutter is arranged on the outer surface of the rotating rod in the middle. The second cutter is serrated and is responsible for further shearing and crushing the coarsely crushed materials. One end of the rotating rod in the middle is provided with a disc 2;

[0017] A third cutter is arranged on the outer surface of the rotating rod at the bottom. The third cutter is a fine needle-shaped cutter for conducting final fine crushing on the materials. One end of the rotating rod at the bottom is provided with a disc 3.

[0018] Preferably, one end of the rotating rod is rotatably connected to the inner wall of the grinding bin, and the radii of the disc 1, the disc 2, and the disc 3 decrease sequentially and are respectively connected to the three main discs through chains for transmission connection;

[0019] The rotation of the main disc will make the first cutter rotate relatively smoothly, the second cutter rotate at a normal speed, and the third cutter rotate at an extremely high speed.

[0020] Preferably, the reflux unit includes transverse movement devices symmetrically arranged on both sides of the grading sieve box. The output end of the transverse movement device is fixedly connected with a support frame. The transverse movement device can drive the support frame to move back and forth. A second servo motor is arranged at the bottom of the support frame. The output end of the second servo motor is fixedly connected with a reciprocating lead screw. A moving platform is threadedly connected to the outer surface of the reciprocating lead screw. Guide rods fixedly connected to the support frame at both sides are slidably connected to the inner wall of the moving platform. A control mechanism is arranged at the bottom of the moving platform for controlling the form of the device.

[0021] Preferably, the control mechanism includes a telescopic rod. A first support block is fixedly connected to the bottom of the telescopic rod. A first support plate is fixedly connected to the outer surface of the telescopic rod. An inclination mechanism is arranged on the outer surface of the first support plate. A first support rod is fixedly connected to the outer surface of the first support block. A collection mechanism is rotatably connected to the bottom of the first support rod for collecting particles that cannot pass through the grading sieve plate.

[0022] Preferably, the inclination mechanism includes a second support plate. An electromagnet is arranged at one end of the second support plate. A second support rod is fixedly connected to the bottom of the second support plate. A blocking block is fixedly connected to the bottom of the second support rod. A second magnetic block is slidably connected to the outer surface of the second support rod. The electromagnet can adsorb the second magnetic block after being energized. A wire rope is fixedly connected to the outer surface of the second magnetic block;

[0023] The inclination mechanism further includes a third support plate. A telescopic spring is fixedly connected to the bottom of the third support plate. A fourth support plate is fixedly connected to the bottom of the telescopic spring.

[0024] Preferably, the outer surface of the second support plate is fixedly connected to the outer surface of the first support plate. The outer surface of the third support plate is fixedly connected to the outer surface of the first support block.

[0025] Preferably, the collection mechanism includes a storage bin. Arc surfaces are arranged on both sides of the storage bin for the entry and exit of particles. A bottom groove is arranged at the bottom of the storage bin. An extension plate that can extend is arranged in the bottom groove. Diversion convex blocks are evenly arranged on the outer surface of the extension plate, so that the dispersed particles are more evenly distributed when entering the crushing bin, avoiding concentrated accumulation at a certain position, which is beneficial to subsequent crushing operations;

[0026] Both ends of the storage bin are rotatably connected to the bottom of the first support rod. The outer surface of the extension plate is slidably connected to the inner groove. The top of one side of the storage bin is fixedly connected to the bottom of the wire rope.

[0027] Preferably, the telescopic spring will cause the storage bin to initially tilt towards the side away from the opening of the inner groove. After the electromagnet is energized, the movement of the second magnetic block will drive the storage bin to tilt in the opposite direction, facilitating the movement of the extension plate.

[0028] Preferably, the vibration unit includes an inclined platform. The inclined surface of the inclined platform causes the crushed particles to slide downward. A fixed plate is provided near each grading sieve plate. The fixed plate is also made of flexible lining material. A cavity is provided at the bottom of the fixed plate. Pressure sensors are symmetrically arranged at the bottom of the cavity. The top of the pressure sensors is in contact with the bottom of the fixed plate for receiving pressure information. A servo motor three is fixedly connected to the outer surface of the cavity. The output end of the servo motor three is fixedly connected to a support block two. Impact rods are symmetrically arranged at both ends of the support block two for colliding with the fixed plate to generate vibration.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. By setting the crushing unit in the present invention, the servo motor one drives the rotation of the rotating shaft. Along with the transmission between the main disc and disc one, disc two and disc three, the three rotating rods will be driven to rotate, and then drive the first cutter, second cutter and third cutter to rotate and crush the magnesia-calcia brick, making the magnesia-calcia brick crushed in sequence, which not only protects the cutters, but also improves the crushing efficiency.

[0031] 2. By setting the reflux unit in the present invention, due to the elastic force of the telescopic spring, the storage bin is in an inclined state. After moving to the bottom, the lateral movement device controls the support frame to move a certain distance, so as to shovel the blocked particles into the storage bin. Then the telescopic rod resets, and the servo motor two also drives the reciprocating screw rod to rotate, thereby driving the overall moving platform to move upward, facilitating the subsequent pouring of the particles into the crushing bin again.

[0032] 3. By setting the reflux unit in the present invention, the electromagnet generates magnetic force, which simultaneously adsorbs the magnetic block one and the magnetic block two. After the magnetic block one is adsorbed, the flap will be opened, facilitating the entry of particles. When the magnetic block two is adsorbed, it will move upward along the support rod two and pull the wire rope, causing the storage bin to tilt towards the crushing bin, so that the collected particles can be smoothly poured into the crushing bin.

[0033] 4. By setting the collection mechanism in the present invention, during the process of the storage bin tilting towards the crushing bin, the extending plate slides out from the bottom groove, so that the particles can roll downward along the extending plate. At the same time, the diversion convex block makes the falling trajectory of the particles regular, and there will be no situation where multiple particle blocks enter at the same position, thus avoiding concentrated accumulation at a certain position, which is beneficial to subsequent crushing operations and improves the crushing efficiency.

[0034] 5. By setting the vibration unit in the present invention, the servo motor three drives the support block two to perform reciprocating rotation at a certain angle on both sides, thereby driving the impact rod to impact the fixed plate, generating vibration, so as to loosen the particles accumulated on the top of the fixed plate, enabling the particles that can pass through to pass through the grading sieve plate, and avoiding the contact between the particles and the unmatched cutters during reflux. Brief Description of the Drawings

[0035] Figure 1 This is a schematic structural diagram of the present invention.

[0036] Figure 2 This is a sectional view of the structure of the present invention.

[0037] Figure 3 This is a schematic diagram of the partial structure of the present invention.

[0038] Figure 4 This is a schematic structural diagram of the crushing unit of the present invention.

[0039] Figure 5 This is a schematic diagram of the partial structure of the crushing unit of the present invention.

[0040] Figure 6 This is a schematic structural diagram of the crushing roller unit of the present invention.

[0041] Figure 7 This is a schematic structural diagram of the reflux unit of the present invention.

[0042] Figure 8 This is a schematic structural diagram of the control mechanism of the present invention.

[0043] Figure 9 This is a schematic structural diagram of the tilting mechanism of the present invention.

[0044] Figure 10 This is a schematic structural diagram of the collection mechanism of the present invention.

[0045] Figure 11 This is a schematic diagram of the partial structure of the collection mechanism of the present invention.

[0046] Figure 12 This is a schematic structural diagram of the vibration unit of the present invention.

[0047] Figure 13 This is a sectional view of the structure of the vibration unit of the present invention.

[0048] In the figure: 1, bottom plate; 2, grading sieve box; 3, storage box; 4, cover plate; 5, crushing unit; 6, reflux unit; 7, pipeline; 8, vibration unit; 9, air pressure device; 10, discharge notch; 11, grading sieve plate; 51, grinding bin; 52, feed inlet; 53, servo motor 1; 54, rotating shaft; 55, main disc; 56, flap; 57, magnet 1; 58, crushing roller unit; 59, inclined plate; 581, rotating rod; 582, first cutter; 583, disc 1; 584, second cutter; 585, disc 2; 586, third cutter; 587, disc 3; 588, chain; 61, transverse movement device; 62, support frame; 63, servo motor 2; 64, reciprocating lead screw; 65, moving platform; 66, guide rod; 67, control mechanism; 671, telescopic rod; 672, support plate 1; 673, support block 1; 674, support rod 1; 675, collection mechanism; 676, inclination mechanism; 6761, support plate 2; 6762, electromagnet; 6763, support rod 2; 6764, blocking block; 6765, magnet 2; 6766, wire rope; 6767, support plate 3; 6768, telescopic spring; 6769, support plate 4; 6751, storage bin; 6752, arc surface; 6753, bottom groove; 6754, extending plate; 6755, diversion bump; 81, inclined platform; 82, fixed plate; 83, pressure sensor; 84, servo motor 3; 85, support block 2; 86, impact rod; 87, inner cavity. Detailed implementation mode

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0050] Example 1, use Figures 1-13 A crushing device for recycling defective magnesia-calcia bricks according to an embodiment of the present invention will be described as follows.

[0051] As Figures 1-3 shown, a crushing device for recycling defective magnesia-calcia bricks of the present invention includes a bottom plate 1, and a storage box 3 with a cover plate 4 on the top is fixedly connected to the top of the bottom plate 1 for storing the finally crushed materials. It also includes:

[0052] The grading sieve box 2 is provided with a vibration unit 8, and three grading sieve plates 11 with gradually decreasing filter hole sizes are evenly arranged on the vibration unit 8. The aperture of the grading sieve plate 11 is selected according to the particle size of the particles to be screened actually, and is used for precisely grading the crushed magnesia-calcia brick particles. The grading sieve box 2 is connected to the storage box 3 through a pipeline 7;

[0053] The particles after being rolled by the crushing unit will move downward along the vibration unit 8 and pass through the three grading sieve plates 11 in sequence. The particle blocks that do not meet the crushing standard will be blocked by the grading sieve plates 11.

[0054] The crushing unit 5 is used for crushing the defective magnesia-calcia bricks;

[0055] The reflux unit 6 is used for recycling the unqualified larger particle handles and putting them into the crushing unit 5 for re-crushing;

[0056] The crushing unit 5 and the reflux unit 6 are arranged on the top of the grading sieve box 2;

[0057] When the present invention works, the defective magnesia-calcia bricks need to be put into the crushing unit 5. After being graded and crushed by the crushing unit 5, the crushed particles will enter the grading sieve box 2. The unqualified particles will be isolated step by step and put into the crushing unit 5 again through the reflux unit 6 for re-crushing.

[0058] One end of the grading sieve box 2 close to the pipeline 7 is provided with a discharge notch 10, and a wind pressure device 9 facing the discharge notch 10 is further arranged on the inner wall of the grading sieve plate 11, which is used for blowing the crushed magnesia-calcia bricks into the storage box 3;

[0059] As Figures 4-5 shown, the crushing unit 5 includes a crushing chamber 51 with a feed inlet 52 arranged at the top. The inner wall of the crushing chamber 51 adopts a flexible lining material, which has good wear resistance and certain elasticity. An inclined plate 59 is arranged at the bottom of the crushing chamber 51 for guiding the movement of materials. A servo motor 53 is arranged on the outer surface of the grading sieve box 2, and the output end of the servo motor 53 is fixedly connected with a rotating shaft 54. Three main discs 55 are evenly arranged on the outer surface of the rotating shaft 54;

[0060] The servo motor 53 will drive the rotating shaft 54 to rotate, and then drive the main discs 55 to rotate.

[0061] The crushing unit 5 further includes a crushing roller unit 58 for grading and crushing the magnesia-calcia bricks.

[0062] A flap 56 is rotatably connected to the outer surface of the crushing chamber 51, and a magnetic block 57 is arranged on the outer surface of the flap 56.

[0063] The bottom of the crushing chamber 51 is fixedly connected to the top of the grading sieve box 2, and the bottom of the grading sieve box 2 is fixedly connected to the top of the bottom plate 1.

[0064] like Figure 6 As shown, the crushing roller unit 58 includes three rotating rods 581, and the lengths of the rotating rods 581 decrease from top to bottom.

[0065] The outer surface of the rotating rod 581 at the top is provided with a first cutter 582. The first cutter 582 is relatively large and is mainly used to perform initial coarse crushing on the incoming large pieces of defective magnesia-lime bricks. A disc 583 is provided at one end of the rotating rod 581 at the top.

[0066] The outer surface of the rotating rod 581 in the middle is provided with a second cutter 584, which is sawtooth-shaped and is responsible for further shearing and crushing the coarsely crushed materials. A second disc 585 is provided at one end of the rotating rod 581 in the middle;

[0067] A third cutter 586 is disposed on the outer surface of the rotating rod 581 at the bottom. The third cutter 586 is a fine needle-shaped cutter for final fine crushing of the material. A disc three 587 is disposed at one end of the rotating rod 581 at the bottom.

[0068] One end of the rotating rod 581 is rotatably connected to the inner wall of the crushing bin 51, and the radii of the first disk 583, the second disk 585, and the third disk 587 are successively reduced and are respectively connected to the three main disks 55 through chains 588;

[0069] Along with the transmission between the main disc 55 and the disc one 583, the disc two 585 and the disc three 587, the three rotating rods 581 will be driven to rotate, and then the first cutter 582, the second cutter 584 and the third cutter 586 will be driven to rotate and crush the magnesia-lime bricks, so that the magnesia-lime bricks are crushed in sequence.

[0070] The rotation of the main disc 55 will cause the first cutter 582 to rotate more smoothly, the second cutter 584 to rotate at a normal speed, and the third cutter 586 to rotate at an extremely high speed.

[0071] The first cutter 582 rotates at a relatively slow speed, and plays a major crushing role, while the third cutter 586 needs to break the calcium-magnesium bricks into fine particles, so the third cutter 586 rotates at a very high speed.

[0072] The specific workflow is as follows:

[0073] During operation, defective magnesia-lime bricks are first placed into the crushing bin 51, and the servo motor 1 53 drives the rotating shaft 54 ​​to rotate. Along with the transmission between the main disc 55 and the disc 1 583, the disc 2 585 and the disc 3 587, the three rotating rods 581 are driven to rotate, and then the first tool 582, the second tool 584 and the third tool 586 are driven to rotate and crush the magnesia-lime bricks.

[0074] Example 2, using Figures 1-13 A crushing device for recycling defective magnesia-calcia bricks according to an embodiment of the present invention will be described as follows.

[0075] As Figure 7 shown, a crushing device for recycling defective magnesia-calcia bricks of the present invention, on the basis of Example 1, the reflux unit 6 includes transverse movement devices 61 symmetrically arranged on both sides of the grading sieve box 2. The output end of the transverse movement device 61 is fixedly connected with a support frame 62. The transverse movement device 61 can drive the support frame 62 to move back and forth. A servo motor II 63 is arranged at the bottom of the support frame 62. The output end of the servo motor II 63 is fixedly connected with a reciprocating lead screw 64. A moving platform 65 is threadedly connected to the outer surface of the reciprocating lead screw 64. Guide rods 66 whose two sides are fixedly connected with the support frame 62 are slidably connected to the inner wall of the moving platform 65. A control mechanism 67 is arranged at the bottom of the moving platform 65 for controlling the device form.

[0076] After the magnesia-calcia bricks are crushed, they will fall onto the inclined platform 81 and pass through three grading sieve plates 11. If some particles are too large, they will be blocked by the grading sieve plate 11 at this place. At this time, the transverse movement device 61 will drive the support frame 62 to move to the particles that need to be blocked.

[0077] As Figure 8 shown, the control mechanism 67 includes a telescopic rod 671. A support block I 673 is fixedly connected to the bottom of the telescopic rod 671. A support plate I 672 is fixedly connected to the outer surface of the telescopic rod 671. An inclination mechanism 676 is arranged on the outer surface of the support plate I 672. A support rod I 674 is fixedly connected to the outer surface of the support block I 673. A collection mechanism 675 is rotatably connected to the bottom of the support rod I 674 for collecting particles that cannot pass through the grading sieve plate 11.

[0078] The telescopic rod 671 will drive the support block I 673 and the collection mechanism 675 to move to the bottom. Due to the elastic force of the telescopic spring 6768 at the beginning, the storage bin 6751 is in an inclined state. After moving to the bottom, the transverse movement device 61 will control the support frame 62 to move a certain distance, so as to shovel the blocked particles into the storage bin 6751. After that, the telescopic rod 671 resets, and the servo motor II 63 will also drive the reciprocating lead screw 64 to rotate, thereby driving the overall moving platform 65 to move upward, facilitating subsequent pouring of the particles into the crushing bin 51 again.

[0079] As Figure 9As shown, the tilting mechanism 676 includes a second support plate 6761. One end of the second support plate 6761 is provided with an electromagnet 6762. The bottom of the second support plate 6761 is fixedly connected to a second support rod 6763. The bottom of the second support rod 6763 is fixedly connected to a blocking block 6764. A second magnet 6765 is slidably connected to the outer surface of the second support rod 6763. After the electromagnet 6762 is energized, it can attract the second magnet 6765. A wire rope 6766 is fixedly connected to the outer surface of the second magnet 6765;

[0080] The tilting mechanism 676 further includes a third support plate 6767. The bottom of the third support plate 6767 is fixedly connected to a telescopic spring 6768. The bottom of the telescopic spring 6768 is fixedly connected to a fourth support plate 6769.

[0081] According to the size of the blocked particles, the moving platform 65 will move up different distances to approach the cutting tool used for crushing. At this time, the electromagnet 6762 will generate a magnetic force, thereby attracting the first magnet 57 and the second magnet 6765 simultaneously. After the first magnet 57 is attracted, the flap 56 will be opened, facilitating the entry of particles. When the second magnet 6765 is attracted, it will move upward along the second support rod 6763 and pull the wire rope 6766, causing the storage bin 6751 to tilt towards the crushing bin 51, enabling the collected particles to be smoothly poured into the crushing bin 51.

[0082] The outer surface of the second support plate 6761 is fixedly connected to the outer surface of the first support plate 672. The outer surface of the third support plate 6767 is fixedly connected to the outer surface of the first support block 673.

[0083] As Figures 10-11 As shown, the collection mechanism 675 includes a storage bin 6751. Arc surfaces 6752 are provided on both sides of the storage bin 6751 for the entry and exit of particles. A bottom groove 6753 is provided at the bottom of the storage bin 6751. An extendable plate 6754 is provided in the bottom groove 6753. Diversion bumps 6755 are evenly arranged on the outer surface of the extendable plate 6754, making the dispersed particles more evenly distributed when entering the crushing bin, avoiding concentrated accumulation at a certain position, which is beneficial for subsequent crushing operations;

[0084] During the tilting process of the storage bin 6751 towards the crushing bin 51, the extendable plate 6754 will slide out of the bottom groove 6753, enabling the particles to roll downward along the extendable plate 6754. At the same time, the diversion bumps 6755 will make the falling trajectory of the particles regular, preventing multiple particle blocks from entering at the same position simultaneously, thus avoiding concentrated accumulation at a certain position, which is beneficial for subsequent crushing operations and improves the crushing efficiency.

[0085] Both ends of the storage bin 6751 are rotatably connected to the bottom of the first support rod 674. The outer surface of the extending plate 6754 is slidably connected to the inner groove. The top of one side of the storage bin 6751 is fixedly connected to the bottom of the cord 6766.

[0086] The telescopic spring 6768 causes the storage bin 6751 to initially tilt towards the side away from the opening of the inner groove. After the electromagnet 6762 is energized, the movement of the second magnet 6765 drives the storage bin 6751 to tilt in the opposite direction, facilitating the movement of the extending plate 6754.

[0087] As Figures 12-13 shown, the vibration unit 8 includes an inclined platform 81. The inclined surface of the inclined platform 81 causes the crushed particles to slide downward. A fixed plate 82 is provided near each grading sieve plate 11. The fixed plate 82 is also made of a flexible lining material. A cavity 87 is provided at the bottom of the fixed plate 82. Pressure sensors 83 are symmetrically arranged at the bottom of the cavity 87. The tops of the pressure sensors 83 are in contact with the bottom of the fixed plate 82 for receiving pressure information. A servo motor three 84 is fixedly connected to the outer surface of the cavity 87. The output end of the servo motor three 84 is fixedly connected to a second support block 85. Impact rods 86 are symmetrically arranged at both ends of the second support block 85 for colliding with the fixed plate 82 to generate vibration.

[0088] Since the bottom of the grading sieve plate 11 may become blocked, causing particle blocks that could originally pass through to be unable to pass through, the weight of the accumulation here will increase, and the pressure transmitted to the fixed plate 82 will increase. At this time, the servo motor three 84 drives the second support block 85 to perform reciprocating rotation at a certain angle on both sides, thereby driving the impact rods 86 to impact the fixed plate 82 to generate vibration, so as to loosen the particles accumulated on the top of the fixed plate 82, enabling the particles that can pass through to pass through the grading sieve plate 11, and avoiding contact between the particles and the mismatched cutting tools during backflow.

[0089] The servo motor one, servo motor two, and servo motor three mentioned in the present invention are all energy-saving motors.

[0090] The specific working process is as follows:

[0091] During operation, the transverse movement device 61 drives the support frame 62 to move to the particles to be blocked. Then, the telescopic rod 671 drives the first support block 673 and the collection mechanism 675 to move to the bottom. Due to the elastic force of the telescopic spring 6768 at the beginning, the storage bin 6751 is in an inclined state. After moving to the bottom, the transverse movement device 61 controls the support frame 62 to move a certain distance, so as to shovel the blocked particles into the storage bin 6751. Then, the telescopic rod 671 resets, and the second servo motor 63 also drives the reciprocating lead screw 64 to rotate, thereby driving the overall moving platform 65 to move upward. Then, the electromagnet 6762 generates magnetic force, thereby simultaneously adsorbing the first magnet 57 and the second magnet 6765. After the first magnet 57 is adsorbed, the flap 56 is opened, facilitating the entry of particles. When the second magnet 6765 is adsorbed, it moves upward along the second support rod 6763 and pulls the cord 6766, causing the storage bin 6751 to tilt towards the crushing bin 51. Then, the extending plate 6754 slides out of the bottom groove 6753, enabling the particles to roll downward along the extending plate 6754. At the same time, the diversion bump 6755 makes the falling trajectory of the particles regular, preventing multiple particle blocks from entering at the same position simultaneously.

[0092] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. A crushing device for recycling defective magnesia-lime bricks, comprising a bottom plate, a storage box with a cover plate fixedly connected to the top of the bottom plate, for storing the finally crushed materials, characterized in that: Also includes: A grading screen box, on which a vibration unit is arranged, and three grading screen plates with successively smaller filter hole sizes are evenly arranged on the vibration unit, which is used to accurately grade the crushed magnesia-lime brick particles, and the grading screen box is connected to the storage box through a pipeline; Crushing unit, used to crush defective magnesia-lime bricks; The reflux unit is used to recycle the unqualified large particle handles and put them into the crushing unit for re-crushing; The crushing unit and the reflux unit are arranged on the top of the grading screen box; The grading screen box is provided with a discharge notch at one end close to the pipeline, and the inner wall of the grading screen plate is also provided with a wind pressure device facing the discharge notch, which is used to blow the crushed magnesia-lime bricks into the storage box; The crushing unit includes a crushing bin with a feed port at the top, the inner wall of the crushing bin is made of a flexible lining material with good wear resistance and certain elasticity, the bottom of the crushing bin is provided with an inclined plate for guiding the movement of materials, the outer surface of the grading screen box is provided with a servo motor 1, the output end of the servo motor 1 is fixedly connected to a rotating shaft, and the outer surface of the rotating shaft is evenly provided with three main discs; The pulverizing unit further comprises a pulverizing roller unit for classifying and crushing the magnesia-lime bricks.

2. A crushing device for recycling defective magnesia-lime bricks according to claim 1, characterized in that: The outer surface of the crushing bin is rotatably connected with a flap, and the outer surface of the flap is provided with a magnetic block 1.

3. A crushing device for recycling defective magnesia-lime bricks according to claim 1, characterized in that: The bottom of the crushing bin is fixedly connected to the top of the grading screen box, and the bottom of the grading screen box is fixedly connected to the top of the bottom plate.

4. A crushing device for recycling defective magnesia-lime bricks according to claim 1, characterized in that: The crushing roller unit includes three rotating rods, the lengths of which decrease from top to bottom. The outer surface of the rotating rod at the top is provided with a first cutter, which is relatively large in size and mainly performs initial coarse crushing on the incoming large pieces of defective magnesia-lime bricks. A disc 1 is provided at one end of the rotating rod at the top; The outer surface of the rotating rod in the middle is provided with a second cutter, the second cutter is serrated and is responsible for further shearing and crushing the coarsely crushed material, and one end of the rotating rod in the middle is provided with a disc 2; A third cutter is arranged on the outer surface of the rotating rod at the bottom. The third cutter is a fine needle-shaped cutter for final fine crushing of the material. A disc three is arranged at one end of the rotating rod at the bottom.

5. A crushing device for recycling defective magnesia-lime bricks according to claim 4, characterized in that: One end of the rotating rod is rotatably connected to the inner wall of the crushing bin, and the radii of the first disc, the second disc, and the third disc are successively reduced and are respectively connected to the three main discs through chains; The rotation of the main disc will cause the first tool to rotate relatively smoothly, the second tool to rotate at a normal speed, and the third tool to rotate at a very high speed.

6. A crushing device for recycling defective magnesia-lime bricks according to claim 1, characterized in that: The reflux unit includes a transverse movement device symmetrically arranged on both sides of the grading screen box, the output end of the transverse movement device is fixedly connected to a support frame, the transverse movement device can drive the support frame to move forward and backward, a servo motor 2 is arranged at the bottom of the support frame, the output end of the servo motor 2 is fixedly connected to a reciprocating screw, the outer surface of the reciprocating screw is threadedly connected to a moving platform, the inner wall of the moving platform is slidably connected to guide rods fixedly connected to the support frame on both sides, and a control mechanism is arranged at the bottom of the moving platform for controlling the shape of the device.

7. A crushing device for recycling defective magnesia-lime bricks according to claim 6, characterized in that: The control mechanism includes a telescopic rod, the bottom of the telescopic rod is fixedly connected to a support block 1, the outer surface of the telescopic rod is fixedly connected to a support plate 1, the outer surface of the support plate 1 is provided with a tilting mechanism, the outer surface of the support block 1 is fixedly connected to a support rod 1, and the bottom of the support rod 1 is rotatably connected to a collecting mechanism for collecting particles that cannot pass through the grading screen plate.

8. A crushing device for recycling defective magnesia-lime bricks according to claim 7, characterized in that: The tilting mechanism comprises a second support plate, one end of which is provided with an electromagnetic block, the bottom of the second support plate is fixedly connected with a second support rod, the bottom of the second support rod is fixedly connected with a stop block, the outer surface of the second support rod is slidably connected with a second magnetic block, the electromagnetic block can adsorb the second magnetic block after being energized, and the outer surface of the second magnetic block is fixedly connected with a wire rope; The tilting mechanism also includes a support plate three, the bottom of the support plate three is fixedly connected to a telescopic spring, and the bottom of the telescopic spring is fixedly connected to a support plate four.

9. A crushing device for recycling defective magnesia-lime bricks according to claim 8, characterized in that: The outer surface of the support plate 2 is fixedly connected to the outer surface of the support plate 1, and the outer surface of the support plate 3 is fixedly connected to the outer surface of the support block 1.

10. A crushing device for recycling defective magnesia-lime bricks according to claim 8, characterized in that: The collecting mechanism comprises a containing bin, and arc surfaces are arranged on both sides of the containing bin for particles to enter and move out of the containing bin, and a bottom groove is arranged at the bottom of the containing bin, and a protruding plate that can be extended is arranged in the bottom groove, and the outer surface of the protruding plate is evenly provided with diversion protrusions, so that the dispersed particles are more evenly distributed when entering the crushing bin, avoiding concentrated accumulation at a certain position, which is beneficial to the subsequent crushing operation; The two ends of the storage bin are rotatably connected to the bottom of the support rod 1, the outer surface of the extended plate is slidably connected to the inner groove, and the top of one side of the storage bin is fixedly connected to the bottom of the rope.

11. A crushing device for recycling defective magnesia-lime bricks according to claim 10, characterized in that: The telescopic spring will make the containing bin tilt toward the side away from the inner slot opening at the beginning, and the movement of the second magnetic block after the electromagnetic block is energized will drive the containing bin to tilt in the opposite direction, so as to facilitate the movement of the extension plate.

12. A crushing device for recycling defective magnesia-lime bricks according to claim 1, characterized in that: The vibration unit includes an inclined platform, the inclined surface of which causes the crushed particles to slide downward, a fixed plate is provided near each grading screen plate on the inclined platform, and the fixed plate is also made of a flexible lining material, an inner cavity is provided at the bottom of the fixed plate, a pressure sensor is symmetrically provided at the bottom of the inner cavity, the top of the pressure sensor is in contact with the bottom of the fixed plate for receiving pressure information, a servo motor three is fixedly connected to the outer surface of the inner cavity, a support block two is fixedly connected to the output end of the servo motor three, and impact rods are symmetrically provided at both ends of the support block two for colliding with the fixed plate and generating vibration.

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