A high-strength sludge-based porous brick preparation device

Abstract

The application discloses a high-strength sludge-based porous brick preparation device, relates to the field of porous brick preparation devices, and aims to solve the problem of overall stability decline caused by the matching of pore diameters and brick body densities in the production process, and the technical scheme is that the pore diameters are adjusted according to the sludge density after molding, so that the production efficiency is improved at any time, and the high-strength sludge-based porous brick preparation device comprises a feeding assembly, a molding assembly and a slitting assembly, the feeding assembly is provided with the molding assembly on one side, the slitting assembly is located on one side of the molding assembly, a moisture measuring assembly is arranged in the feeding assembly, the moisture measuring assembly is used for detecting the water content in the material, and an adjusting assembly is arranged in the slitting assembly and used for adjusting the pore diameters of the mold.

Description

Technical Field

[0001] This invention relates to the technical field of porous brick preparation apparatus, specifically a porous brick preparation apparatus for high-strength sludge substrate. Background Technology

[0002] Currently, sintered porous bricks are made primarily from clay, shale, coal gangue, fly ash, silt, and other solid wastes, and are fired. They are mainly used in load-bearing parts of buildings. Sintered porous bricks are a type of building brick produced through a baking process. Sintering is a production method in which red bricks are placed in a high-temperature kiln for firing, and after cooling, they are formed. The porous aspect simply involves adding more holes to the traditional brick shape, which increases both the heat insulation effect and the strength. Therefore, sintered porous bricks have been widely used in the construction industry.

[0003] Existing patents, such as CN116061298A, propose a sintered porous brick forming mechanism and method, including a first conveyor frame, a drying box fixedly connected to the top surface of a second conveyor frame, a support column fixedly installed on the top surface of a third conveyor frame, a top plate fixedly installed on the top surface of the support column, a sealing box and a cutting box arranged below the top plate, multiple cutting blades fixedly installed on the bottom surface of the cutting box, a cleaning component including a snap-fit ​​frame, multiple bent pipes fixedly installed on the bottom surface of the snap-fit ​​frame, a nozzle fixedly connected to one end of the multiple bent pipes, and a return component including a collection box, a suction pump fixedly connected to one side of the collection box, a conveying pipe fixedly connected to the discharge end of the suction pump, and a feeding pipe fixedly connected to the other end of the conveying pipe. This technical solution solves the problem in the prior art where raw materials adhere to the outer surface of the existing cutting blades after cutting, affecting the cutting of the blank.

[0004] The existing technical solutions described above have the following drawbacks: When using sludge as the substrate for porous bricks, the sludge itself has a large composition and high water content, requiring multiple processing steps before it can be used to produce porous bricks. When cutting the sludge, the density of the sludge needs to be adjusted to adjust the pore size; otherwise, the overall stability will decrease due to the mismatch between the pore size and the brick density. Furthermore, the existing technical solutions do not filter metal particles, which will melt and form pores during subsequent sintering, leading to a decrease in brick quality. Summary of the Invention

[0005] The purpose of this invention is to provide a device for preparing high-strength porous bricks based on sludge substrate.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-strength sludge-based porous brick preparation device is provided. The preparation device includes a feeding component, a forming component and a cutting component. The forming component is located on one side of the feeding component and the cutting component is located on the other side of the forming component. A moisture measuring component is provided in the feeding component to detect the moisture content in the material. An adjustment component is provided in the cutting component to adjust the size of the mold hole.

[0008] Furthermore, when using sludge as a porous brick substrate, due to its diverse composition and high water content, the sludge material requires multiple processing steps before it can be used to produce porous bricks. The first step is to reduce the water content of the sludge; the second step is to extrude the sludge into shape; and the third step is to cut and press the extruded sludge to form individual bricks. The water content of the sludge needs to be reduced to below 15%; otherwise, rapid evaporation during the initial sintering stage will easily form internal pores or cracks. Before extruding the sludge into shape, the second step requires the removal of heavy metal particles from the sludge. Before the three processes, it is necessary to press holes of corresponding diameters according to the strength of the sludge molding to reduce damage to the stability of the brick structure. The feeding component is used to collect untreated sludge and perform two dewatering processes on it. The sludge content is first reduced to 80% to 60%, and then reduced to below 15%. The moisture measuring component is used to control the efficiency of the subsequent second dewatering process based on the reduced moisture content during the first dewatering process. The molding component is used to collect and squeeze the dewatered sludge to make it into a slit-shaped body. During the squeezing process, the diameter of the subsequent pressing holes is adjusted according to the squeezing pressure. During the collection process, the total amount and shape are controlled to prevent the generation of scrap.

[0009] The feeding assembly includes a first base, a rotating cylinder, and a collection bin. The first base stands on a horizontal ground. The rotating cylinder is located at the top of the first base and is rotatably connected to the first base. The collection bin is located at the input end of the rotating cylinder and is rotatably connected to the rotating cylinder. A discharge port is located at the top of the collection bin, and a moisture measuring component is located inside the collection bin.

[0010] Furthermore, the first base supports the rotating cylinder to stand on the ground. The first base is equipped with a drive unit to control the rotation of the rotating cylinder. The outer wall of the rotating cylinder is equipped with a toothed ring to cooperate with the drive unit to rotate. The rotating cylinder is equipped with a heating element, which serves as the second dewatering process to heat the sludge in the rotating cylinder to dewater it. Then, the collection chamber is located on the side of the rotating cylinder away from the forming component, and the discharge port is located on the side of the collection chamber away from the rotating cylinder. The inner wall of the collection chamber is inclined so that the sludge can slide and move on its own when it is poured in. The bottom of the collection chamber is equipped with a moisture measuring component to perform the dewatering process on the sludge and to detect the dewatering efficiency.

[0011] The rotating cylinder is equipped with a removal assembly, which includes a magnetic block and a top chamber. A rectangular groove is opened on the inner wall of the rotating cylinder, and the magnetic block is located in the rectangular groove and is fixedly connected to the inner wall of the rectangular groove. A cavity is opened inside the rotating cylinder, and a sliding column is provided on the inner wall of the cavity. A contact block is provided at one end of the sliding column and is fixedly connected to the inner wall of the cavity. A top chamber is provided at the top of the inner wall of the rotating cylinder and is rotatably connected to the rotating cylinder. One end of the top chamber is fixedly connected to a baffle.

[0012] Furthermore, the removal component is used to clean heavy metal particles from the sludge, reducing the risk of metal particles melting and forming pores in the brick during subsequent sintering, which would reduce the brick's strength. The sludge rotates with the rotating drum, and the magnetic blocks on the inner wall of the drum collect the heavy metal particles from the sludge. These magnetic blocks also provide partial traction. The magnetic blocks are connected to an external power source and controlled by electricity. The number of rectangular slots, cavities, and magnetic blocks is the same, and several are arranged on the same central axis. When the magnetic blocks are at the bottom of the rotating drum, their outer surfaces are in contact with the sludge. When the magnetic block is at the top of the rotating drum, its outer surface does not contact the sludge and it is inside the top chamber. The sliding column will move away from the contact block due to gravity and will not squeeze it. The magnetic block is energized by the electrical signal of the contact block, so that the sludge is magnetically attracted at the bottom of the rotating drum and falls off at the top of the rotating drum. The top chamber is used to collect the fallen heavy metal particles and discharge them through the discharge port on one side, which is located on the side of the top chamber close to the molding component.

[0013] The humidity measuring component includes a baffle, a rotating plate, and a first drive motor. The rotating plate is located inside the collection chamber, with one end of the rotating plate rotatably connected to the collection chamber. The top of the collection chamber is equipped with the first drive motor, and the output end of the first drive motor is equipped with a squeezing plate. A groove is formed on the upper surface of the rotating plate, and a flow channel is formed inside the rotating plate, which is connected to the groove. The top of the baffle is fixedly connected to the inner wall of the collection chamber. A through groove is formed on the upper surface of the rotating plate, and an electrode needle is provided in the through groove.

[0014] Furthermore, the rotating plate is located at the bottom of the collection chamber, and one end of the rotating plate is rotatably connected to the bottom of the inner wall of the collection chamber. The first drive motor serves as the power source to control the up-and-down movement of the extrusion plate, extruding the sludge on the rotating plate to achieve the first dewatering process. When the sludge is extruded, overflowing liquid is generated. If the liquid is not treated, it can easily move in other directions, especially seeping into the rotating cylinder, which will reduce the efficiency of the second dewatering process. During the extrusion process, the liquid in the extruded part of the sludge will move to the unextruded area. Finally, the sludge in the groove is at its minimum state of extrusion, and most of the liquid will overflow from this end. The liquid will then accumulate in the groove and be collected by the flow channel to prevent liquid overflow. There are two through channels, and corresponding electrode needles are also provided. There are two electrodes. During the compression process, the electrode needles in the channel will contact the bottom of the sludge, thus generating a resistance value between the two electrode needles. However, since the sludge contains liquid, its resistance value is relatively small. When compression is carried out, as water is discharged, its resistance value will also increase. The change in resistance value is used to determine the water content and approximate volume of the sludge. The electrode needle detection result before compression is used as the baseline, and the result after compression stops is used as the final result. Different volumes have different water contents, and therefore different resistance value changes. The greater the change in resistance value, the larger the sludge volume, and vice versa. The efficiency of the second dewatering process is controlled based on the indirectly obtained volume. The bottom of the collection bin is equipped with a drive unit, which is used to control the movement of the rotating plate. After the first dewatering process is completed, one end of the rotating plate is moved downwards, and then it is reset.

[0015] The molding assembly includes a chamber, a second base, and a collection box. One side of the chamber is connected to the output end of the rotating cylinder. The second base is located at the bottom of the chamber. The collection box is located inside the chamber and is slidably connected to the chamber. A push motor is provided at the bottom of the chamber, and the output end of the push motor is rotatably connected to the bottom of the collection box. A second drive motor is provided at the top of the chamber, and the fixed end of the second drive motor is fixedly connected to the top of the chamber. A molding plate is provided at the output end of the second drive motor.

[0016] Furthermore, after the second dewatering process, the sludge will move into the chamber through the output end of the rotating drum, and then gather in the collection box. There are two drive motors. The drive motor is used as a power source to control the collection box. The fixed end of the drive motor is fixedly connected to the bottom of the chamber, and the output end of the drive motor is rotatably connected to the collection box. The second drive motor is used as a power source to control the movement of the forming plate to squeeze the sludge in the collection box.

[0017] The chamber has a bottom groove with strain gauges inside. Two limiting blocks are located at the bottom of the collection box, and the tops of the two limiting blocks are fixedly connected to the collection box. A squeezing column is located between the two limiting blocks.

[0018] Furthermore, when sludge is stored in the collection box, the collection box will move downwards due to the pressure of the sludge. The movement of the collection box will drive the extrusion column to move, and the extrusion column will compress the surface of the strain gauge. The strain gauge is connected to an external power source, so that the strain gauge is energized and a resistance is generated at both ends of the upper surface. The extrusion column deforms the surface of the strain gauge, increasing the resistance between the two ends of the upper surface. The strain gauge can not only detect the weight in the collection box, but also indirectly detect the density of the sludge during molding. The pushing pressure of the second drive motor gradually increases. It takes time to push the extrusion plate to mold the sludge. The sludge density is judged based on the length of time. The shorter the time, the lower the density, and vice versa. The judgment of the length of time is based on whether the strain gauge reaches its maximum value and whether the collection box moves to the bottom. Two limit blocks are used to prevent the collection box from being too heavy or to prevent damage to the strain gauge during molding.

[0019] The slitting assembly includes a third base, support columns, and a third drive motor. The third base is located on the side of the second base away from the first base. A conveyor belt is provided on the upper surface of the third base. One end of the conveyor belt is connected to the inside of the hopper. Support columns are provided on both sides of the conveyor belt. The bottom end of the support columns is fixedly connected to the upper surface of the third base. A top plate is provided at the top of the support columns. The third drive motor is located on the top plate. The fixed end of the third drive motor is fixedly connected to the top of the top plate. A slitting plate is provided at the output end of the third drive motor. The slitting plate is located at the bottom of the top plate.

[0020] Furthermore, the conveyor belt is used to transport the shaped sludge from the silo to the top plate. The support column is used to make the top plate stand on the conveyor belt. The top plate is used to support the third drive motor. The third drive motor is used as a power source to control the up and down movement of the cutting plate. The cutting plate is used to manufacture porous bricks from the shaped sludge. The output end of the third drive motor faces downward and is fixedly connected to the top of the cutting plate.

[0021] The bottom of the slitting plate is provided with an adjustment assembly, which includes a bottom cover, a movable cylinder wall, and a connecting cylinder wall. The movable cylinder wall is located at the bottom of the slitting plate and is slidably connected to the slitting plate. There are multiple movable cylinder walls, and a connecting cylinder wall is provided between the movable cylinder walls. The bottom of the movable cylinder wall is provided with a bottom cover, which is slidably connected to the movable cylinder wall. The top of the bottom cover is provided with a screw, and a turntable is sleeved on the screw. A connecting rod is provided on the upper surface of the turntable. One end of the connecting rod is rotatably connected to the turntable, and the other end of the connecting rod is rotatably connected to the movable cylinder wall. A spring is provided between the top of the screw and the slitting plate.

[0022] Furthermore, the adjustment component adjusts the pore size based on the sludge density indirectly obtained from the strain gauges. Bricks with excessively low density are unsuitable as building materials but can be used for permeable bricks or sound-absorbing bricks, which require larger pore sizes. Bricks with excessively high density are suitable as building materials, requiring smaller pore sizes to prevent impact on the overall structural stability. Multiple movable cylinder walls are connected to each other via connecting cylinder walls, forming a circumferential structure. The connecting cylinder walls are made of soft material, allowing them to move in conjunction with the movable cylinder walls and change the circumferential radius. During cutting, the bottom cover is pressed towards the top plate, driving the screw to rotate. The screw rotation drives the turntable to rotate, which in turn drives one end of the connecting rod to move. The connecting rod causes the sliding cylinder wall to contract, reducing the circumferential radius. This ensures that the higher the sludge density, the greater the pressure on the bottom cover and the smaller its diameter, and vice versa. This provides an elastic zone between the screw and the cutting plate.

[0023] In summary, the beneficial technical effects of the present invention are as follows:

[0024] 1. A magnetic block and a sliding column are used. When the magnetic block is at the top of the rotating drum, its outer surface does not contact the sludge and it is in the top compartment. The sliding column will move away from the contact block due to gravity and will not squeeze it. The magnetic block is energized by the electrical signal of the contact block, so that the sludge is magnetically attracted at the bottom of the rotating drum and falls off at the top of the rotating drum.

[0025] 2. The design incorporates grooves and flow channels, which cause the liquid in the sludge to move towards the uncompressed area during the compression process. Ultimately, the sludge in the groove is under the least compression, and most of the liquid overflows from this end. The liquid then accumulates in the groove and is collected by the flow channel, thus preventing liquid overflow.

[0026] 3. Electrode needles and a pressing plate are used. During pressing, the electrode needles in the channel contact the bottom of the sludge, generating a resistance value between the two electrode needles. As water is discharged during pressing, the resistance value increases. The change in resistance value is used to determine the water content and approximate sludge volume. The result detected by the electrode needles before pressing is used as a baseline, and the result is used after pressing stops. Different volumes have different water contents, and therefore different resistance value changes. The greater the change in resistance value, the larger the sludge volume, and vice versa. The efficiency of the second dewatering process is controlled based on the indirectly obtained volume.

[0027] 4. Strain gauges, extrusion columns, and extrusion plates are used. When sludge is stored in the collection box, the extrusion columns will compress the surface of the strain gauges, increasing the resistance between the two ends of the upper surface of the strain gauges. Since it takes time to push the extrusion plate to shape the sludge, the sludge density is determined by the length of time. The shorter the time, the lower the density, and vice versa. The longer the time, the greater the applied pressure and the greater the density. This method can detect both the weight of the sludge and the density of the sludge after shaping.

[0028] 5. The system employs a bottom cover, a movable cylinder wall, and a connecting cylinder wall. During the cutting process, the bottom cover is pressed and moves towards the top plate, causing the screw to rotate. The rotation of the screw causes the turntable to rotate, which in turn causes one end of the connecting rod to move. The connecting rod causes the sliding cylinder wall to contract, reducing the circumference radius. This achieves the effect that the higher the sludge density, the greater the pressure on the bottom cover and the smaller its diameter, and vice versa. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the humidity measuring component of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the molding component of the present invention;

[0033] Figure 4 This is a schematic diagram of the slitting component of the present invention;

[0034] Figure 5 For the present invention Figure 2 Enlarged view of part A in the middle section;

[0035] Figure 6 For the present invention Figure 2 Enlarged view of section B in the middle;

[0036] Figure 7 For the present invention Figure 3 Enlarged view of section C in the middle;

[0037] Figure 8 This is a schematic diagram of the structure of the adjustment component of the present invention.

[0038] In the diagram: 1. Feeding assembly; 11. First base; 12. Rotating cylinder; 121. Rectangular groove; 122. Cavity; 13. Collection bin; 2. Forming assembly; 21. Bin body; 22. Second base; 23. Collection box; 24. Push motor; 25. Second drive motor; 26. Forming plate; 27. Strain gauge; 28. Limiting block; 29. ​​Extrusion column; 3. Slitting assembly; 31. Third base; 32. Support column; 33. Third drive motor; 34. Conveyor belt; 35. 36. Top plate; 4. Cutting plate; 5. Moisture measuring component; 61. Baffle; 42. Rotating plate; 421. Groove; 422. Flow channel; 423. Through channel; 43. First drive motor; 44. Extrusion plate; 45. Electrode needle; 5. Adjustment component; 51. Bottom cover; 52. Movable cylinder wall; 53. Connecting cylinder wall; 54. Screw; 55. Turntable; 56. Connecting rod; 57. Spring; 6. Removal component; 61. Magnetic block; 62. Top chamber; 63. Sliding column; 64. Contact block. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] 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.

[0041] Please see Figures 1-8 The present invention provides a technical solution: a high-strength sludge-based porous brick preparation device, the preparation device including a feeding component 1, a forming component 2 and a cutting component 3, the forming component 2 is provided on one side of the feeding component 1, the cutting component 3 is located on one side of the forming component 2, a moisture measuring component 4 is provided in the feeding component 1, the moisture measuring component 4 is used to detect the moisture content in the material, and an adjustment component 5 is provided in the cutting component 3, the adjustment component 5 is used to adjust the size of the mold hole.

[0042] Specifically, when using sludge as a porous brick substrate, due to its diverse composition and high water content, the sludge material requires multiple processing steps before it can be used to produce porous bricks. The first step is to reduce the water content of the sludge; the second step is to extrude the sludge into shape; and the third step is to cut and press the extruded sludge to form individual bricks. The water content of the sludge needs to be reduced to below 15%; otherwise, rapid evaporation during the initial sintering stage can easily create internal pores or cracks. Before extruding the sludge into shape, the second step requires removing heavy metal particles from the sludge. The third step… Before proceeding, it is necessary to press holes of corresponding diameters according to the strength of the sludge molding to reduce damage to the stability of the brick structure. The feeding component 1 is used to collect untreated sludge and perform two dewatering processes on it. The sludge content is first reduced to 80% to 60%, and then reduced to below 15%. The moisture measuring component 4 is used to control the efficiency of the subsequent second dewatering process based on the reduced moisture content during the first dewatering process. The molding component 2 is used to collect and squeeze the dewatered sludge to make it into a slit-shaped body. During the squeezing process, the diameter of the subsequent pressing holes is adjusted according to the squeezing pressure. The total amount and shape are controlled during the collection process to prevent the generation of scrap.

[0043] Please see Figure 1 , Figure 2 The feeding assembly 1 includes a first base 11, a rotating cylinder 12 and a collection bin 13. The first base 11 is erected on a horizontal ground. The rotating cylinder 12 is provided at the top of the first base 11 and is rotatably connected to the first base 11. The collection bin 13 is provided at the input end of the rotating cylinder 12 and is rotatably connected to the rotating cylinder 12. The top of the collection bin 13 is provided with a discharge port and a moisture measuring assembly 4 is provided inside the collection bin 13.

[0044] Specifically, the first base 11 supports the rotating cylinder 12 standing on the ground. The first base 11 is equipped with a drive unit to control the rotation of the rotating cylinder 12. The outer wall of the rotating cylinder 12 is equipped with a toothed ring to cooperate with the drive unit to rotate. The rotating cylinder 12 is equipped with a heating element, which serves as the second dewatering process to heat the sludge in the rotating cylinder 12 to dewater it. Then, the collection chamber 13 is located on the side of the rotating cylinder 12 away from the forming component 2, and the discharge port is located on the side of the collection chamber 13 away from the rotating cylinder 12. The inner wall of the collection chamber 13 is inclined so that the sludge can slide and move on its own when it is poured in. The bottom of the collection chamber 13 is equipped with a moisture measuring component 4, which is used to perform the dewatering process on the sludge and detect the dewatering efficiency.

[0045] Please see Figure 2 , Figure 6The rotating cylinder 12 is equipped with a removal component 6, which includes a magnetic block 61 and a top chamber 62. A rectangular groove 121 is opened on the inner wall of the rotating cylinder 12, and the magnetic block 61 is located in the rectangular groove 121 and is fixedly connected to the inner wall of the rectangular groove 121. A cavity 122 is opened inside the rotating cylinder 12, and a sliding column 63 is provided on the inner wall of the cavity 122. A contact block 64 is provided at one end of the sliding column 63 and is fixedly connected to the inner wall of the cavity 122. A top chamber 62 is provided at the top of the inner wall of the rotating cylinder 12 and is rotatably connected to the rotating cylinder 12. One end of the top chamber 62 is fixedly connected to the baffle 41.

[0046] Specifically, component 6 is used to remove heavy metal particles from the sludge, reducing the risk of metal particles melting and forming pores in the brick during subsequent sintering, which would reduce the brick's strength. The sludge rotates with the rotating drum 12, and the magnetic blocks 61 on the inner wall of the rotating drum 12 collect the heavy metal particles from the sludge. The magnetic blocks 61 also play a partial traction role. The magnetic blocks 61 are connected to an external power source and controlled by electricity. The rectangular grooves 121, cavities 122, and magnetic blocks 61 are of the same number and are all located on the same central axis. When the magnetic blocks 61 are at the bottom of the rotating drum 12, their outer surfaces contact the sludge and slide. The column 63 will move towards the contact block 64 due to gravity, contact with the contact block 64, and squeeze it. When the magnetic block 61 is at the top of the rotating cylinder 12, its outer surface does not contact the sludge and is inside the top chamber 62. The sliding column 63 will move away from the contact block 64 due to gravity and will not squeeze it. The magnetic block 61 is energized by the electrical signal of the contact block 64, so that the sludge is magnetically attracted at the bottom of the rotating cylinder 12 and falls off at the top of the rotating cylinder 12. The top chamber 62 is used to collect the fallen heavy metal particles and discharge them through the discharge port on one side. The discharge port is located on the side of the top chamber 62 close to the molding component 2.

[0047] Please see Figure 2 , Figure 5 The humidity measuring component 4 includes a baffle 41, a rotating plate 42, and a first drive motor 43. The rotating plate 42 is located inside the collection chamber 13, and one end of the rotating plate 42 is rotatably connected to the collection chamber 13. The top of the collection chamber 13 is provided with the first drive motor 43, and the output end of the first drive motor 43 is provided with a pressing plate 44. The upper surface of the rotating plate 42 is provided with a groove 421, and the inside of the rotating plate 42 is provided with a flow groove 422, which is connected to the groove 421. The top of the baffle 41 is fixedly connected to the inner wall of the collection chamber 13. The upper surface of the rotating plate 42 is provided with a through groove 423, and an electrode needle 45 is provided in the through groove 423.

[0048] Specifically, the rotating plate 42 is located at the bottom of the collection chamber 13, and one end of the rotating plate 42 is rotatably connected to the bottom of the inner wall of the collection chamber 13. The first drive motor 43 serves as a power source to control the up-and-down movement of the extrusion plate 44, extruding the sludge on the rotating plate 42 to achieve the first dewatering process. When the sludge is extruded, overflowing liquid is generated. If the liquid is not treated, it can easily move in other directions, especially seeping into the rotating cylinder 12, which will reduce the efficiency of the second dewatering process. During the extrusion process, the liquid in the extruded part of the sludge moves to the unextruded area. Finally, the sludge in the groove 421 is at its minimum state of extrusion, and most of the liquid overflows from this end. The liquid then accumulates in the groove 421 and is collected by the flow channel 422 to prevent liquid overflow. Two through channels 423 are provided. Two corresponding electrode needles 45 are also provided. During extrusion, the electrode needles 45 in the through groove 423 will contact the bottom of the sludge, thereby generating a resistance value between the two electrode needles 45. However, since the sludge contains liquid, its resistance value is small. When extrusion is carried out, as water is discharged, its resistance value will also increase. The change in resistance value is used to determine the water content and the approximate volume of the sludge. The value detected by the electrode needles 45 before extrusion is the baseline, and the value after extrusion stops is the result. Different volumes have different water contents, and thus different resistance value changes. The greater the change in resistance value, the larger the sludge volume, and vice versa. The efficiency of the second dewatering process is controlled based on the indirectly obtained volume. The bottom of the collection chamber 13 is provided with a drive unit, which is used to control the movement of the rotating plate 42. After the first dewatering process is completed, one end of the rotating plate 42 is moved downwards, and then it is reset.

[0049] Please see Figure 3 The molding component 2 includes a chamber 21, a second base 22, and a collection box 23. One side of the chamber 21 is connected to the output end of the rotating cylinder 12. The second base 22 is located at the bottom of the chamber 21. The collection box 23 is located inside the chamber 21 and is slidably connected to the chamber 21. A push motor 24 is provided at the bottom of the chamber 21. The output end of the push motor 24 is rotatably connected to the bottom of the collection box 23. A second drive motor 25 is provided at the top of the chamber 21. The fixed end of the second drive motor 25 is fixedly connected to the top of the chamber 21. A molding plate 26 is provided at the output end of the second drive motor 25.

[0050] Specifically, after the second dewatering process, the sludge will move into the chamber 21 through the output end of the rotating drum 12, and then gather in the collection box 23. There are two drive motors 24. The drive motor 24 is used as a power source to control the collection box 23. The fixed end of the drive motor 24 is fixedly connected to the bottom end of the chamber 21, and the output end of the drive motor 24 is rotatably connected to the collection box 23. The second drive motor 25 is used as a power source to control the movement of the forming plate 26 to squeeze the sludge in the collection box 23.

[0051] Please see Figure 7 The chamber 21 has a bottom groove, and a strain gauge 27 is installed in the bottom groove. The bottom of the collection box 23 has two limiting blocks 28, the tops of the two limiting blocks 28 are fixedly connected to the collection box 23, and a squeezing column 29 is provided between the two limiting blocks 28.

[0052] Specifically, when sludge is stored in the collection box 23, the collection box 23 will move downwards due to the compression of the sludge. The movement of the collection box 23 will drive the extrusion column 29 to move. The extrusion column 29 will compress the surface of the strain gauge 27. The strain gauge 27 is connected to an external power source, so that the strain gauge 27 is energized and a resistance is generated at both ends of the upper surface. The extrusion column 29 deforms the surface of the strain gauge 27, increasing the resistance between the two ends of the upper surface. The strain gauge 27 can not only detect the weight inside the collection box 23, but also indirectly detect the density of the sludge during molding. The pushing pressure of the second drive motor 25 gradually increases. It takes time to push the extrusion plate 44 to mold the sludge. The sludge density is judged according to the length of the extrusion time. The shorter the time, the lower the density. Conversely, the longer the time, the greater the applied pressure and the greater the density. The judgment of the time depends on whether the strain gauge 27 reaches its maximum value and whether the collection box 23 moves to the bottom. The two limit blocks 28 are used to prevent the collection box 23 from being too heavy or to prevent the strain gauge 27 from being damaged during molding.

[0053] Please see Figure 4 The slitting assembly 3 includes a third base 31, a support column 32, and a third drive motor 33. The third base 31 is located on the side of the second base 22 away from the first base 11. A conveyor belt 34 is provided on the upper surface of the third base 31. One end of the conveyor belt 34 is connected to the inside of the hopper 21. Support columns 32 are provided on both sides of the conveyor belt 34. The bottom end of the support column 32 is fixedly connected to the upper surface of the third base 31. A top plate 35 is provided at the top of the support column 32. The third drive motor 33 is located on the top plate 35. The fixed end of the third drive motor 33 is fixedly connected to the top of the top plate 35. A slitting plate 36 is provided at the output end of the third drive motor 33. The slitting plate 36 is located at the bottom of the top plate 35.

[0054] Specifically, the conveyor belt is used to transport the shaped sludge from the silo 21 to the top plate 35. The support column 32 is used to make the top plate 35 stand on the conveyor belt 34. The top plate 35 is used to support the third drive motor 33. The third drive motor 33 is used as a power source to control the up and down movement of the cutting plate 36. The cutting plate 36 is used to manufacture porous bricks from the shaped sludge. The output end of the third drive motor 33 faces downward and is fixedly connected to the top of the cutting plate 36.

[0055] Please see Figure 8The bottom end of the slitting plate 36 is provided with an adjustment component 5. The adjustment component 5 includes a bottom cover 51, a movable cylindrical wall 52 and a connecting cylindrical wall 53. The movable cylindrical wall 52 is located at the bottom end of the slitting plate 36 and is slidably connected to the slitting plate 36. There are multiple movable cylindrical walls 52 and a connecting cylindrical wall 53 is provided between the movable cylindrical walls 52. The bottom end of the movable cylindrical wall 52 is provided with a bottom cover 51 and is slidably connected to the movable cylindrical wall 52. The top end of the bottom cover 51 is provided with a screw 54. A turntable 55 is sleeved on the screw 54. A connecting rod 56 is provided on the upper surface of the turntable 55. One end of the connecting rod 56 is rotatably connected to the turntable 55 and the other end of the connecting rod 56 is rotatably connected to the movable cylindrical wall 52. A spring 57 is provided between the top end of the screw 54 and the slitting plate 36.

[0056] Specifically, the adjustment component 5 adjusts the pore size based on the sludge density indirectly obtained from the strain gauge 27. Bricks with excessively low density are unsuitable as building materials but can be used for permeable bricks or sound-absorbing bricks, which require larger pore sizes. Bricks with excessively high density are suitable as building materials, requiring smaller pore sizes to prevent impact on the overall structural stability. Multiple movable cylinder walls 52 are provided and connected to each other via connecting cylinder walls 53, forming a circumferential shape. The connecting cylinder walls 53 are made of a soft material that can cooperate with the movable cylinder walls. The moving cylinder wall 52 moves, changing the circumferential radius. During cutting, the bottom cover 51 is pressed and moves towards the top plate 35, driving the screw 54 to rotate. The rotation of the screw 54 drives the turntable 55 to rotate, and the turntable 55 drives one end of the connecting rod 56 to move. The connecting rod 56 causes the sliding cylinder wall to contract, reducing the circumferential radius. This means that the higher the sludge density, the greater the pressure on the bottom cover 51 and the smaller its diameter, and vice versa. This provides an elastic area between the screw 54 and the cutting plate 36.

[0057] Working principle: First, the sludge raw material is poured in through the discharge port. The sludge moves to the upper surface of the rotating plate 42. The total amount of sludge on the rotating plate 42 is determined by the resistance value between the two electrode needles 45. When the set value is reached, the first drive motor 43 acts as a power source to control the up and down movement of the extrusion plate 44, extruding the sludge on the rotating plate 42 to achieve the first dewatering process. During this process, the liquid in the extruded part of the sludge moves to the unextruded area. Finally, the sludge in the groove 421 is at its minimum state of extrusion, and most of the liquid overflows from this end. The liquid then accumulates in the groove 421 and is collected by the flow channel 422 to prevent liquid overflow. During the extrusion, as water is discharged, the resistance value also increases. The change in resistance value is used to determine the water content and approximate volume of the sludge. The efficiency of the second dewatering process is controlled based on the indirectly obtained volume. Then, the sludge that has passed through the first dewatering process moves to the rotating drum 12. In the second dewatering process of the rotating drum 12 and the heating element, the magnetic block 61 collects heavy metal particles in the sludge. After the second dewatering process, the sludge moves to the bin 21 through the output end of the rotating drum 12 and then gathers in the collection box 23. When the sludge is stored in the collection box 23, the collection box 23 moves downward due to the compression of the sludge. The movement of the collection box 23 drives the extrusion column 29 to move. The extrusion column 29 compresses the surface of the strain gauge 27. The capacity and density of the sludge after molding are determined based on the resistance value. During the cutting process, the bottom cover 51 is pressed and moves towards the top plate 35, which drives the screw 54 to rotate. The rotation of the screw 54 drives the turntable 55 to rotate. The turntable 55 drives one end of the connecting rod 56 to move. The connecting rod 56 causes the sliding cylinder wall to contract, reducing the circumference radius. This means that the higher the sludge density, the greater the pressure on the bottom cover 51 and the smaller the diameter, and vice versa.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high strength sludge based substrate porous brick manufacturing apparatus characterized by: The preparation device includes a feeding assembly (1), a forming assembly (2) and a slitting assembly (3), one side of the feeding assembly (1) is provided with the forming assembly (2), the slitting assembly (3) is located on one side of the forming assembly (2), the feeding assembly (1) is provided with a moisture measuring assembly (4) inside, the moisture measuring assembly (4) is used for detecting the water content in the material, the slitting assembly (3) is provided with an adjusting assembly (5) inside, and the adjusting assembly (5) is used for adjusting the mold aperture size. The slitting assembly (3) includes a third base (31), a support column (32) and a third drive motor (33), the third base (31) is located on the side of the second base (22) away from the first base (11), the upper surface of the third base (31) is provided with a conveying belt (34), one end of the conveying belt (34) is connected with the inside of the bin body (21), the conveying belt (34) is provided with the support column (32) on both sides, the bottom end of the support column (32) is fixedly connected with the upper surface of the third base (31), the top end of the support column (32) is provided with a top plate (35), the third drive motor (33) is located on the top plate (35), the fixed end of the third drive motor (33) is fixedly connected with the top end of the top plate (35), and the output end of the third drive motor (33) is provided with a slitting plate (36). The slitting plate (36) is located at the bottom end of the top plate (35). The bottom end of the slitting plate (36) is provided with an adjusting assembly (5), the adjusting assembly (5) includes a bottom cover (51), a movable cylinder wall (52) and a connecting cylinder wall (53), the movable cylinder wall (52) is located at the bottom end of the slitting plate (36), the movable cylinder wall (52) is in sliding connection with the slitting plate (36), a plurality of movable cylinder walls (52) are arranged, the connecting cylinder wall (53) is arranged between the movable cylinder walls (52), the bottom end of the movable cylinder wall (52) is provided with the bottom cover (51), the bottom cover (51) is in sliding connection with the movable cylinder wall (52), the top end of the bottom cover (51) is provided with a screw rod (54), the screw rod (54) is sleeved with a rotating disc (55), the upper surface of the rotating disc (55) is provided with a connecting rod (56), one end of the connecting rod (56) is rotatably connected with the rotating disc (55), the other end of the connecting rod (56) is rotatably connected with the movable cylinder wall (52), and the spring (57) is arranged between the top end of the screw rod (54) and the slitting plate (36).

2. A device for the preparation of high strength sludge based substrate perforated brick as claimed in claim 1, wherein: The feeding assembly (1) includes a first base (11), a rotating cylinder (12) and a collection bin (13), the first base (11) stands on the horizontal ground, the top end of the first base (11) is provided with the rotating cylinder (12), the rotating cylinder (12) is rotatably connected with the first base (11), the input end of the rotating cylinder (12) is provided with the collection bin (13), the collection bin (13) is rotatably connected with the rotating cylinder (12), the top end of the collection bin (13) is provided with a pouring opening, and the collection bin (13) is provided with the moisture measuring assembly (4) inside.

3. A device for the preparation of high strength sludge based substrate perforated brick as claimed in claim 2 wherein: The rotating cylinder (12) is internally provided with a removal assembly (6), the removal assembly (6) comprises a magnetic block (61) and a top bin (62), a rectangular groove (121) is formed in the inner wall of the rotating cylinder (12), the magnetic block (61) is located in the rectangular groove (121), and the magnetic block (61) is fixedly connected with the inner wall of the rectangular groove (121); a cavity (122) is formed in the rotating cylinder (12), a sliding column (63) is arranged on the inner wall of the cavity (122), one end of the sliding column (63) is provided with a point touch block (64), the point touch block (64) is fixedly connected with the inner wall of the cavity (122), and the top end of the inner wall of the rotating cylinder (12) is provided with the top bin (62); the top bin (62) is rotatably connected with the rotating cylinder (12).

4. A device for making high strength sludge based substrate perforated brick as claimed in claim 3 wherein: The moisture measuring assembly (4) comprises a baffle (41), a rotating plate (42) and a first driving motor (43), one end of the top bin (62) is fixedly connected with the baffle (41), the rotating plate (42) is located in the collecting bin (13), one end of the rotating plate (42) is rotatably connected with the collecting bin (13), the top end of the collecting bin (13) is provided with the first driving motor (43), the output end of the first driving motor (43) is provided with a pressing plate (44), the upper surface of the rotating plate (42) is provided with a groove (421), the interior of the rotating plate (42) is provided with a flow groove (422), the flow groove (422) is in communication with the groove (421), the top end of the baffle (41) is fixedly connected with the inner wall of the collecting bin (13), the upper surface of the rotating plate (42) is provided with a through groove (423), and the through groove (423) is provided with an electrode needle (45).

5. A device for the preparation of high strength sludge based substrate perforated brick as claimed in claim 4 wherein: The forming assembly (2) comprises a bin body (21), a second base (22) and a collecting box body (23), one side of the bin body (21) is in communication with the output end of the rotating cylinder (12), the second base (22) is located at the bottom end of the bin body (21), the collecting box body (23) is located in the bin body (21), the collecting box body (23) is slidably connected with the bin body (21), the bottom end of the bin body (21) is provided with a pushing motor (24), the output end of the pushing motor (24) is rotatably connected with the bottom end of the collecting box body (23), the top end of the bin body (21) is provided with a second driving motor (25), the fixed end of the second driving motor (25) is fixedly connected with the top end of the bin body (21), and the output end of the second driving motor (25) is provided with a forming plate (26).

6. A device for making high strength sludge based substrate perforated brick as claimed in claim 5 wherein: A bottom groove is formed in the bin body (21), a strain sheet (27) is arranged in the bottom groove, the bottom end of the collecting box body (23) is provided with two limiting blocks (28), the top ends of the two limiting blocks (28) are fixedly connected with the collecting box body (23), and an extrusion column (29) is arranged between the two limiting blocks (28).

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