A sludge regeneration treatment system and method for preparing ceramsite

Abstract

The present application relates to the field of sludge regeneration and treatment, and specifically discloses a sludge regeneration and treatment system and method for preparing ceramsite. The sludge regeneration and treatment system for preparing ceramsite includes a screening device, a granulating device and a drying and calcining device arranged in sequence. The screening device includes a cleaning box, a sorting mechanism for cleaning iron filings and a screening mechanism for screening sludge; the sorting mechanism includes a plurality of sorting rods, a plurality of sorting pins installed on the sorting rods at equal intervals, a power assembly for driving the sorting rods to rotate, an adsorption assembly for adsorbing iron filings and a feeding assembly. The sorting pins on two adjacent sorting rods are staggered, and the circumference of the movement path of the sorting pins on one sorting rod is located between the circumferences of the movement paths of two adjacent sorting pins on the adjacent sorting rods. The present application has the effect of improving the efficiency of iron filing cleaning, which can not only consume sludge and solve the problem of its environmental pollution, but also reuse the sludge.

Description

Technical Field

[0001] The present application relates to the field of sludge regeneration treatment, and in particular to a sludge regeneration treatment system and method for preparing ceramsite. Background Art

[0002] With the continuous development of my country's economy and the continuous increase of urban population, environmental pollution problems are becoming increasingly serious. Sewage sludge is a solid flocculent or fluid substance produced by urban sewage treatment plants after sewage treatment. The sludge treated by sewage treatment plants has high water content (mechanical dehydration is still as high as 80%), strong odor, high heavy metal content (mainly Pb, Zn, Cu, Cr, Ni, etc.), high organic matter content, high pathogen and microbial content, and certain calorific value. Based on the above characteristics of sludge, if it is not properly handled, it will cause great harm to the natural environment and human health, which puts forward higher requirements for the reform of the building materials industry, and also brings good opportunities for the great development of the light building materials industry and the rise of the ceramsite industry.

[0003] Ceramic lightweight aggregate is a ceramic particle with a hard ceramic or enamel shell on the surface and a large number of closed micropores inside. Ceramic is not only light, heat-insulating, and has low water absorption, but also has good fire resistance, earthquake resistance, impermeability, frost resistance, durability, and resistance to alkali aggregate reaction. Therefore, ceramsite is widely used in construction, petroleum, chemical industry, agriculture, filler, filter material and other fields.

[0004] In the related technology, a Chinese patent with application number CN201911255237.3 proposes a preparation method of a new type of regenerated ceramsite, a new type of regenerated ceramsite and its application. The preparation method of the new type of regenerated ceramsite uses sludge, iron tailings and construction waste as raw materials to replace traditional clay and shale to prepare a regenerated ceramsite. This preparation method utilizes iron tailings, sludge and construction waste to burn ceramsite, which can not only consume a large amount of iron tailings and sludge, eliminate the safety hazards of tailings ponds, and comprehensively control the problems of tailings and sludge, but also turn waste into treasure, input new materials for the building materials industry, increase the circular economy benefits of mines, and solve the problem of sludge management. It is an effective way to comprehensively utilize tailings and sludge, and the prepared new type of regenerated ceramsite has low water absorption, high cylinder pressure strength, good frost resistance and firmness.

[0005] Regarding the above-mentioned related technologies, in the process of magnetic separation of sludge to remove iron chips, only the sludge is magnetically separated, and the iron chips and even some block iron materials are mixed in the sludge or at the bottom. There is a problem of low iron chip adsorption rate only through simple magnetic attraction. Summary of the invention

[0006] In order to improve the problem of iron filings adsorption rate, the present application provides a sludge regeneration treatment system and method for preparing ceramsite.

[0007] The present application provides a sludge regeneration treatment system and method for preparing ceramsite, which adopts the following technical solutions:

[0008] A sludge regeneration treatment system and method for preparing ceramsite, comprising a screening device, a granulating device and a drying and calcining device arranged in sequence, wherein the screening device comprises a cleaning box, a sorting mechanism for cleaning iron filings and a screening mechanism for screening sludge;

[0009] The sorting mechanism includes a plurality of sorting rods, a plurality of sorting pins installed on the sorting rods at equal intervals, a power assembly for driving the sorting rods to rotate, an adsorption assembly for adsorbing iron filings, and a feeding assembly. The sorting pins on two adjacent sorting rods are staggered, and the circumference of the movement path of the sorting pins on one sorting rod is located between the circumferences of the movement paths of two adjacent sorting pins on adjacent sorting rods.

[0010] By adopting the above technical scheme, multiple sorting rods are driven to rotate together through the power component, and the sorting pins on the sorting rods move the sludge material apart. At this time, the adsorption component is used to adsorb iron filings in the depressed parts of the material. Under the staggered cooperation of multiple sorting pins, the sludge material is repeatedly moved, and the iron filings are adsorbed on the depressed positions each time, which greatly increases the probability of iron filings adsorption. After the iron filings are cleaned, the sludge particle size is screened to obtain sludge material within the specified particle size range, and then granulated, dried, preheated and calcined through a granulating device and a drying and calcining device in sequence to obtain a ceramsite product.

[0011] Optionally, the power assembly includes a rotating shaft rotatably connected to the cleaning box, and a servo motor driving the rotating shaft to rotate, one end of the sorting rod is fixedly connected to the outer wall of the rotating shaft, and the length direction of the sorting rod is arranged along the radial direction of the rotating shaft.

[0012] By adopting the above technical solution, the servo motor drives the rotating shaft to rotate, thereby providing power to the sorting rod, thereby achieving the effect of sorting the sludge material.

[0013] Optionally, the adsorption assembly includes multiple support plates, brackets rotatably connected to the support plates, multiple adsorption rods installed on the brackets, multiple magnet bars installed on the adsorption rods, and an adjustment part for driving the brackets to rotate, the support plates correspond to the sorting rods and the support plates are located behind the sorting rods along the rotation direction of the rotating shaft, and the support plates are fixedly connected to the rotating shaft.

[0014] By adopting the above technical solution, the magnet bar moves along the corresponding sorting pin movement path, that is, the magnet bar moves in the recessed position of the sludge material and adsorbs iron filings. When a lot of iron filings are adsorbed on the magnet bar, the adjustment part drives the bracket to rotate, so that the magnet bar can be replaced and the new magnet bar can be put into the new iron filing adsorption work, which greatly improves the work efficiency of adsorbing iron filings.

[0015] Optionally, the adjusting part includes an adjusting motor, an output end of the adjusting motor is coaxially fixed with the bracket, and the adjusting motor is mounted on the support plate.

[0016] By adopting the above technical solution, the regulating motor is used to provide power for replacing the adsorption rod, thereby ensuring the normal operation of replacing the magnet strip.

[0017] Optionally, the bracket is fixedly connected with fixed blocks at both ends close to the adsorption rod, and the adsorption rod is fixedly connected with fixed plates at both ends. The fixed plates are provided with fixed grooves, the fixed blocks are inserted into the fixed grooves, and the fixed blocks are provided with clamping parts for clamping the fixed plates.

[0018] By adopting the above technical solution, the fixing block is inserted into the fixing groove, and under the action of the clamping piece, the fixing plate is clamped on the bracket, which is convenient for installing the adsorption rod.

[0019] Optionally, the clamping member is configured as a clamping block, the clamping block is rotatably connected to the end of the fixing block, and the clamping block is rotated to a position deviating from the fixing slot after passing through the fixing slot.

[0020] By adopting the above technical solution, after the clamping block passes through the fixing groove, the clamping block is driven to rotate. After the clamping block rotates to a position perpendicular to the fixing groove, the movement of the fixing plate is restricted, thereby achieving the effect of locking the fixing plate.

[0021] Optionally, the unloading assembly includes a plurality of unloading pipes installed at the bottom of the cleaning box, a solenoid valve installed on the unloading pipes, and a unloading plate rotatably installed on the support plate, the axis of rotation of the unloading plate and the support plate coincides with one side of the unloading plate, and the support plate is provided with a transmission assembly for driving the unloading plate.

[0022] By adopting the above technical solution, when the iron chip adsorption work is completed, the transmission assembly is used to realize the rotation of the discharge plate, the discharge plate is rotated to the bottom of the cleaning box, the discharge pipe is opened, and as the discharge plate rotates, the sludge material falls from the discharge pipe onto the screen.

[0023] Optionally, the transmission assembly includes two gears meshing with each other, one of the gears is coaxially fixed to the bracket, and the other gear is coaxially fixed to the blanking plate.

[0024] By adopting the above technical solution, under the mutual transmission action of the two gears, when the adsorption rod needs to be replaced, the unloading plate is rotated to the position for pushing the material, so that the unloading work can be carried out normally.

[0025] Optionally, the screening mechanism includes a screening box and a screen for vibrating screening, the screening box is installed below the cleaning box, and the outlet of the feed pipe faces the screen.

[0026] By adopting the above technical solution, the sludge material after the iron filings are adsorbed falls onto the screen through the discharge pipe, and the screen is used to screen the particle size of the sludge material through the vibration screening effect of the screen.

[0027] The present application provides a sludge regeneration treatment system and method for preparing ceramsite, which adopts the following technical solutions:

[0028] A method for regenerating sludge for preparing ceramsite comprises the following steps:

[0029] S1. Prepare materials, crush sludge such as building materials to obtain particle-sized sludge materials;

[0030] S2, sorting iron chips, the sludge material is moved and separated by the sorting pins, and the corresponding magnet strips magnetically attract the iron chips at the separated position, and this process is repeated many times;

[0031] S3, screening the sludge particle size, screening the sludge particle size through the screen vibration, completing the sludge screening work;

[0032] S4, granulation, granulating the sludge by a granulation device;

[0033] S5, drying and calcining, after drying the material balls, pre-examination is carried out, and finally calcination is performed to obtain the finished ceramsite.

[0034] By adopting the above technical solution, sludge such as building materials is crushed to obtain particle-sized sludge materials; the servo motor drives the rotating shaft to rotate, the sorting rod drives the sorting pin to rotate, the sorting pin moves the sludge material apart, and the corresponding magnet bar magnetically attracts the iron filings at the moved apart position, repeating multiple times, the next sorting pin moves the raised position apart, and the corresponding magnet bar adsorbs the iron filings at the new recessed position, thereby greatly improving the efficiency of full adsorption of iron filings; the sludge particle size is screened by screen vibration to complete the sludge screening work; the sludge is granulated by a granulator; the material balls are dried, preheated, and finally calcined to obtain ceramsite products; the purpose is to remove moisture from the raw balls to prevent cracking during the roasting process. In order to reduce the bursting caused by the rapid temperature change when the raw balls suddenly enter a high-temperature environment, the raw balls need to be preheated before calcination.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The power assembly drives multiple sorting rods to rotate together, and the sorting pins on the sorting rods move the sludge material apart. At this time, the adsorption assembly is used to adsorb the iron chips in the concave part of the material. Under the staggered cooperation of multiple sorting pins, the sludge material is repeatedly moved, and the iron chips are adsorbed at the concave position each time, which greatly increases the probability of iron chips adsorption;

[0037] 2. The magnet bar moves along the corresponding movement path of the sorting pin, that is, the magnet bar moves in the concave position of the sludge material and adsorbs the iron chips. When the magnet bar adsorbs a lot of iron chips, the adjustment part drives the bracket to rotate, and the magnet bar can be replaced. The new magnet bar is put into the new adsorption of iron chips, which greatly improves the work efficiency of adsorbing iron chips;

[0038] 3. When the iron chips adsorption work is completed, the transmission assembly is used to realize the rotation of the unloading plate, the unloading plate rotates to the bottom of the cleaning box, and the unloading pipe is opened. As the unloading plate rotates, the sludge material falls from the unloading pipe onto the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0040] Figure 2 It is a schematic diagram of the sorting mechanism in Example 1 of the present application.

[0041] Figure 3 It is a cross-sectional view of the support plate and the adsorption assembly in Example 1 of the present application.

[0042] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0043] Figure 5 This is a process flow chart of Example 2 of the present application.

[0044] Figure numerals: 1. cleaning box; 2. sorting rod; 3. sorting pin; 4. rotating shaft; 5. servo motor; 6. support plate; 7. bracket; 8. adsorption rod; 9. magnet bar; 10. adjusting motor; 11. fixing block; 12. fixing plate; 13. fixing groove; 14. clamping block; 15. discharge pipe; 16. solenoid valve; 17. discharge plate; 18. gear; 19. screening box; 20. screen. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-5 This application is described in further detail.

[0046] Embodiment 1

[0047] The present application embodiment discloses a sludge regeneration treatment system for preparing ceramsite. Figure 1 and Figure 2 A sludge regeneration treatment system for preparing expanded clay comprises a screening device, a granulating device and a drying and calcining device which are arranged in sequence. The screening device is used to screen sludge such as building materials, including cleaning iron filings in the sludge. After the iron filings are cleaned, the sludge particle size is screened to obtain sludge material within a specified particle size range, and then the sludge material is granulated, dried, preheated and calcined in sequence through the granulating device and the drying and calcining device to obtain an expanded clay product.

[0048] Reference Figure 1 and Figure 2 The screening device includes a cleaning box 1, a sorting mechanism for cleaning iron filings, and a screening mechanism for screening sludge particle size. The cleaning box 1 is placed on the ground. The inner cavity of the cleaning box 1 is set as a cylindrical cavity in this embodiment, and the screening mechanism is located below the sorting mechanism; the sorting mechanism includes a plurality of sorting rods 2, a plurality of sorting nails 3 installed on the sorting rods 2 at equal intervals, a power component for driving the sorting rods 2 to rotate, an adsorption component for adsorbing iron filings, and a feeding component.

[0049] Reference Figure 2 and Figure 3 , wherein the power assembly includes a rotating shaft 4 rotatably connected to the cleaning box 1, and a servo motor 5 driving the rotating shaft 4 to rotate, the two ends of the rotating shaft 4 are respectively rotatably connected to the bottom wall of the cleaning box 1 and the top cover of the cleaning box 1, the servo motor 5 is installed on the top cover of the cleaning box 1, the output end of the servo motor 5 is fixedly connected to the end of the rotating shaft 4, one end of the sorting rod 2 is fixedly connected to the outer wall of the rotating shaft 4, and the length direction of the sorting rod 2 is along the radial direction of the rotating shaft 4, and the length dimension of the sorting rod 2 is adapted to the inner cavity of the cleaning box 1.

[0050] In the present embodiment, there are preferably two sorting rods 2, the number of sorting nails 3 is adapted to the length of the sorting rod 2, the angle between the two sorting rods 2 is 180°, that is, the sorting rods 2 are located on the same straight line, and the sorting nails 3 on two adjacent sorting rods 2 are staggered. In actual operation, the sludge depth in the cleaning box 1 is adapted to the sorting rod 2, and the sludge depth is not greater than the length of the sorting rod 2. The movement path of each sorting nail 3 on the sorting rod 2 is circular, and the above-mentioned multiple circles are cocentrically arranged. The circle where the movement path of the sorting nail 3 on another sorting rod 2 is located is just located between the movement circular paths of two adjacent sorting nails 3 on the adjacent sorting rod 2, that is, the sorting nail 3 on one sorting rod moves the sludge apart, and the position where the sorting nail 3 moves is recessed, which is convenient for adsorption at this position. After the other sorting nail 3 moves, the above-mentioned raised position is moved apart. After repeating the above-mentioned operation, the iron filings in the sludge can be fully adsorbed.

[0051] Reference Figure 2 and Figure 3 The adsorption assembly is used to adsorb iron filings in the recessed position. The adsorption assembly includes multiple support plates 6, brackets 7 rotatably connected to the support plates 6, multiple adsorption rods 8 installed on the brackets 7, multiple magnet bars 9 installed on the adsorption rods 8, and an adjusting portion for driving the brackets 7 to rotate. In this embodiment, there are preferably two support plates 6. The two sorting rods 2 are located in the same vertical plane, that is, the angle between the planes where the two sorting rods 2 are located is 180 degrees. The support plate 6 is fixedly connected to the outer wall of the rotating shaft 4, the bracket 7 is rotatably connected to the support plate 6, and the rotating shaft 4 is arranged along the radial direction of the rotating shaft 4. The length of the adsorption rod 8 is the same as that of the sorting rod 2, and the sorting rod 2 is located behind the sorting rod 2 along the rotation direction of the rotating shaft 4.

[0052] The number of the magnet bars 9 is the same as the number of the sorting pins 3, and the positions of the sorting pins 3 on the sorting rod 2 and the corresponding magnet bars 9 on the adsorption rod 8 correspond, and the circumference of the movement path of the magnet bars 9 coincides with the circumference of the movement path of the corresponding sorting pins 3, that is, the sludge is sorted first, and the iron filings in the position after being separated by the shifting are immediately adsorbed. When the magnet bars 9 adsorb the iron filings in the recessed position, the sludge is pushed away at this time, which greatly increases the probability of the iron filings being fully cleaned.

[0053] Reference Figure 2 and Figure 4 When too much iron filings are adsorbed on the magnet bar 9, the magnet bar 9 needs to be replaced. The adjustment part includes an adjustment motor 10. The output end of the adjustment motor 10 is coaxially fixed with the bracket 7. The adjustment motor 10 is installed on the support plate 6. At this time, the adjustment motor 10 controls the bracket 7 to rotate 180°, and the other adsorption rod 8 rotates to the bottom, and the adsorption rod 8 moves to the position for adsorbing iron filings. The adsorption rod 8 adsorbed with iron filings rotates to the top to facilitate its cleaning.

[0054] Reference Figure 3 and Figure 4 The bracket 7 is fixedly connected with a fixing block 11 at both ends close to the adsorption rod 8, and a fixing plate 12 is fixedly connected with both ends of the adsorption rod 8. The fixing plate 12 is provided with a fixing groove 13, and the fixing groove 13 is set through. The fixing block 11 is inserted into the fixing groove 13, and the end of the fixing block 11 is located in the fixing groove 13. The fixing block 11 is adapted to the fixing groove 13, and the fixing block 11 is provided with a clamping piece for clamping the fixing plate 12. The clamping piece is set as a clamping block 14, and the clamping block 14 is rotatably connected to the end of the fixing block 11, and it is rotatably connected through a bearing sleeve. The length dimension of the clamping block 14 is equal to the length dimension of the fixing groove 13. When the clamping block 14 passes through the fixing groove 13, the clamping block 14 is driven to rotate. The length dimension of the clamping block 14 is greater than the width dimension of the opening of the fixing groove 13. The clamping block 14 rotates to a position perpendicular to the length direction of the fixing groove 13 to achieve the clamping effect of the clamping block 14 and the fixing plate 12.

[0055] If the adsorption rod 8 needs to be removed, the clamping block 14 is rotated to a position parallel to the fixing groove 13, and the fixing plate 12 is removed from the bracket 7. At this time, the fixing block 11 and the clamping block 14 slide out of the fixing groove 13 in turn, thereby achieving the effect of disassembling the adsorption rod 8, making it convenient to clean the iron filings on the adsorption rod 8.

[0056] Reference Figure 1 and Figure 2 When the iron filings are adsorbed, the unloading assembly is used for unloading and the material flows into the screening mechanism. The unloading assembly includes a plurality of unloading pipes 15 installed at the bottom of the cleaning box 1, a solenoid valve 16 installed on the unloading pipe 15, and an unloading plate 17 rotatably installed on the support plate 6. The axis of rotation of the unloading plate 17 and the support plate 6 coincides with one side of the unloading plate 17, that is, the axis of rotation of the unloading plate 17 and the support plate 6 is located on the side of the unloading bar. When the unloading plate 17 rotates toward the bottom wall of the cleaning box 1, the unloading plate 17 pushes the material to the unloading pipe 15 and unloads the material from the unloading pipe 15.

[0057] The support plate 6 is provided with a transmission assembly for driving the unloading plate 17, and the transmission assembly includes two meshing gears 18, one gear 18 is coaxially fixed with the bracket 7, and the other gear 18 is coaxially fixed with the unloading plate 17. When the motor drives the bracket 7 to rotate, that is, to replace the adsorption rod 8, it is proved that the work of removing iron filings is completed. Under the action of the mutual transmission of the two gears 18, the unloading plate 17 rotates in opposite directions to the bracket 7, and rotates 180° at the same time, ensuring that the unloading bar rotates to a position close to the bottom of the cleaning box 1. As the servo motor 5 continues to rotate the shaft 4, the unloading plate 17 pushes the material toward the unloading pipe 15, so as to facilitate the normal unloading work.

[0058] The screening mechanism includes a screening box 19 and a screen 20 for vibrating screening. The feed port of the screening box 19 is located below the feed pipe 15. The screen 20 is vibrated by a vibration motor to discharge the material. The outlet of the feed pipe 15 faces the screen 20. Therefore, as the screen 20 vibrates, materials of a specified particle size are screened.

[0059] The implementation principle of a sludge regeneration treatment system for preparing expanded clay in an embodiment of the present application is as follows: the servo motor 5 drives the rotating shaft 4 to rotate, the sorting rod 2 drives the sorting nail 3 to rotate, and the sorting nail 3 moves the sludge material to separate, and the corresponding magnet column absorbs iron filings on the depressions of the sludge material during the rotation process. After the iron filings are adsorbed, the motor 10 is adjusted to control the rotation of the bracket 7, and the magnet column adsorbed with the iron filings rotates to the top, and the fixed block 11 is separated from the fixed plate 12 by driving the clamping block 14 to rotate, thereby completing the disassembly effect of the adsorption rod 8; at the same time, under the mutual transmission action of the two gears 18, the unloading plate 17 swings to the bottom of the cleaning box 1, and as the rotating shaft 4 continues to rotate, the solenoid valve 16 opens the unloading pipe 15, and the material enters the screen 20 for vibration screening.

[0060] Embodiment 2

[0061] The present application discloses a sludge regeneration method for preparing ceramsite. Figure 5 A sludge regeneration method for preparing ceramsite comprises the following steps:

[0062] S1. Prepare materials, crush sludge such as building materials to obtain particle-sized sludge materials;

[0063] S2, sorting iron chips, the servo motor 5 drives the rotating shaft 4 to rotate, the sorting rod 2 drives the sorting nail 3 to rotate, the sorting nail 3 moves the sludge material to separate, and the corresponding magnet bar 9 magnetically attracts the iron chips at the separated position, repeating multiple times, the next sorting nail 3 moves the raised position, and the corresponding magnet bar 9 attracts the iron chips at the new recessed position, thereby greatly improving the efficiency of fully adsorbing the iron chips;

[0064] S3, screening the sludge particle size, the sludge particle size is screened by the vibration of the screen 20, and the sludge screening work is completed;

[0065] S4, granulation, granulating the sludge by a granulator;

[0066] S5, drying and calcining, drying the material balls, preheating them, and finally calcining them to obtain the finished ceramsite; the purpose is to remove moisture from the raw material balls and prevent cracking during the roasting process. In order to reduce the explosion caused by the rapid temperature change when the raw material balls suddenly enter the high temperature environment, the raw material balls need to be preheated before calcining.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sludge regeneration treatment system for preparing ceramsite, comprising a screening device, a granulating device and a drying and calcining device arranged in sequence, characterized in that: The screening device comprises a cleaning box (1), a sorting mechanism for cleaning iron filings, and a screening mechanism for screening sludge; The sorting mechanism comprises a plurality of sorting rods (2), a plurality of sorting pins (3) mounted on the sorting rods (2) at equal intervals, a power assembly for driving the sorting rods (2) to rotate, an adsorption assembly for adsorbing iron filings, and a material discharge assembly, wherein the sorting pins (3) on two adjacent sorting rods (2) are staggered, and the circumference of the movement path of the sorting pins (3) on one sorting rod (2) is located between the circumferences of the movement paths of two adjacent sorting pins (3) on adjacent sorting rods (2); The power assembly comprises a rotating shaft (4) rotatably connected to the cleaning box (1), and a servo motor (5) driving the rotating shaft (4) to rotate; one end of the sorting rod (2) is fixedly connected to the outer wall of the rotating shaft (4), and the length direction of the sorting rod (2) is arranged along the radial direction of the rotating shaft (4); The adsorption assembly comprises a plurality of support plates (6), a bracket (7) rotatably connected to the support plates (6), a plurality of adsorption rods (8) mounted on the brackets (7), a plurality of magnet bars (9) mounted on the adsorption rods (8), and an adjusting portion for driving the bracket (7) to rotate, the support plates (6) corresponding to the sorting rods (2) and the support plates (6) being located behind the sorting rods (2) along the rotation direction of the rotating shaft (4), and the support plates (6) being fixedly connected to the rotating shaft (4); The circumference of the movement path of the magnet strip (9) coincides with the circumference of the movement path of the corresponding sorting pin (3).

2. A sludge regeneration treatment system for preparing ceramsite according to claim 1, characterized in that: The adjusting part comprises an adjusting motor (10), the output end of the adjusting motor (10) is coaxially fixed with the bracket (7), and the adjusting motor (10) is mounted on the support plate (6).

3. A sludge regeneration treatment system for preparing ceramsite according to claim 1, characterized in that: The bracket (7) is fixedly connected to a fixing block (11) at both ends close to the adsorption rod (8), and the adsorption rod (8) is fixedly connected to a fixing plate (12) at both ends, and the fixing plate (12) is provided with a fixing groove (13), and the fixing block (11) is inserted into the fixing groove (13), and the fixing block (11) is provided with a clamping piece for clamping the fixing plate (12).

4. A sludge regeneration treatment system for preparing ceramsite according to claim 3, characterized in that: The clamping piece is configured as a clamping block (14), the clamping block (14) is rotatably connected to the end of the fixing block (11), and the clamping block (14) passes through the fixing groove (13) and then rotates to a position deviating from the fixing groove (13).

5. A sludge regeneration treatment system for preparing ceramsite according to claim 1, characterized in that: The unloading assembly comprises a plurality of unloading pipes (15) mounted on the bottom of the cleaning box (1), a solenoid valve (16) mounted on the unloading pipes (15), and an unloading plate (17) rotatably mounted on the support plate (6), wherein the axis of rotation of the unloading plate (17) and the support plate (6) coincides with one side of the unloading plate (17), and the support plate (6) is provided with a transmission assembly for driving the unloading plate (17).

6. A sludge regeneration treatment system for preparing ceramsite according to claim 5, characterized in that: The transmission assembly comprises two mutually meshing gears (18), one of the gears (18) being coaxially fixed to the bracket (7), and the other gear (18) being coaxially fixed to the blanking plate (17).

7. A sludge regeneration treatment system for preparing ceramsite according to claim 5, characterized in that: The screening mechanism comprises a screening box (19) and a screen (20) for vibratory screening. The screening box (19) is installed below the cleaning box (1), and the outlet of the feed pipe (15) faces the screen (20).

8. A method for sludge regeneration for preparing ceramsite, based on the sludge regeneration system for preparing ceramsite according to any one of claims 1 to 7, comprising the following steps: S1, sorting iron chips, using the sorting pins (3) to move the sludge material to separate, and the corresponding magnet bars (9) magnetically attract the iron chips at the separated position, and repeating this process multiple times; S2, screening the sludge particle size, screening the sludge particle size by vibrating the sieve (20), completing the sludge screening work; S3, granulation, granulating the sludge by a granulation device; S4, drying and calcining, after the material balls are dried, they are pre-screened and finally calcined to obtain the finished ceramsite products.

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