A classification crushing and cleaning device for slag treatment

Abstract

The present invention relates to the technical field of slag processing, and specifically relates to a grading crushing and cleaning device for slag treatment, which includes a self-cleaning rotary screen for screening slag. A self-cleaning stirring assembly is installed inside the self-cleaning rotary screen, and a pushing and flushing assembly is installed on the outer wall of the self-cleaning rotary screen. The pushing and flushing assembly is used to flush the screen holes of the self-cleaning rotary screen. The self-cleaning stirring assembly includes a mixing and stirring frame detachably connected to the self-cleaning rotary screen. The mixing and stirring frame is used to cooperate with the self-cleaning rotary screen to stir the slag. A pushing and scraping mechanism is also installed on the mixing and stirring frame. The pushing and scraping mechanism is used to clean the inner wall of the self-cleaning rotary screen. A positioning and disengaging device is installed beside the mixing and stirring frame. The positioning and disengaging device is used to regulate the connection state of the mixing and stirring frame. The present invention effectively improves the grading screening effect and screening efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of slag processing, and more particularly to a classification crushing and cleaning device for slag treatment. Background Art

[0002] Incineration residues refer to the general term of slag, leakage slag, boiler ash and fly ash generated during the garbage incineration process. Incineration ash residues contain a certain amount of heavy metal substances. If not properly treated, they will cause environmental pollution. Incineration residues can generally be used as building materials, and can be made into lightweight aggregates, floor tiles, and wall tiles for building materials, and have a greater potential market in replacing traditional building fillers.

[0003] Chinese Patent No. CN118080102B discloses a classification crushing and cleaning method for garbage incineration treatment slag, which is applied to a classification crushing and cleaning device for garbage incineration treatment slag. The device includes a support frame installed at the rear side of the top of a concrete base: a screening assembly is arranged at the top of the support frame. The screening assembly includes a diagonal support frame fixedly connected to the top of the support frame. A rotatable drum screen is arranged at the top of the diagonal support frame. A plurality of roller frames are fixedly connected to the front side and the rear side of the top of the diagonal support frame. A friction wheel is rotatably connected to the inner cavity of the roller frame. Through the combined use of the support frame and the screening assembly, the materials are screened. Subsequently, through the arrangement of the crushing assembly, the particles of the same specification are crushed. Finally, under the combined use of the water supply assembly and the propulsion assembly, the materials are dust-reduced and cleaned, so as to achieve the purposes of preventing dust leakage, preventing jamming of teeth during classification crushing, and preventing screening blockage.

[0004] Although the above device can achieve the classification, crushing and cleaning of slag, it still has significant defects. After the slag comes into contact with water, it becomes sticky and is easy to adhere to the inner wall and sieve holes of the drum screen. Although it is possible to wash by spraying water from the outside of the drum screen, this method is often difficult to effectively remove the slag adhering to the drum screen holes and inner wall. After long-term use, a large amount of dirt will accumulate on the inner wall of the drum screen, and the aperture of the sieve holes may also decrease due to dirt accumulation, thus seriously affecting the efficiency of classification screening. Summary of the Invention

[0005] Aiming at the above problems, a classification crushing and cleaning device for slag treatment is provided, which effectively improves the classification screening effect and screening efficiency through the cleaning function of the self-cleaning drum screen.

[0006] To solve the problems of the prior art, the present invention provides a grading crushing and cleaning device for slag treatment, including a self-cleaning rotary screen for screening slag. A self-cleaning stirring assembly is installed inside the self-cleaning rotary screen, and a pushing and flushing assembly is installed on the outer wall of the self-cleaning rotary screen. The pushing and flushing assembly is used to flush the screen holes of the self-cleaning rotary screen. The self-cleaning stirring assembly includes a mixing and stirring frame detachably connected to the self-cleaning rotary screen. The mixing and stirring frame is used to cooperate with the self-cleaning rotary screen to stir the slag. A pushing and scraping mechanism is also installed on the mixing and stirring frame. The pushing and scraping mechanism is used to clean the inner wall of the self-cleaning rotary screen. A positioning and detaching device is installed beside the mixing and stirring frame. The positioning and detaching device is used to adjust the connection state of the mixing and stirring frame.

[0007] Preferably, the self-cleaning rotary screen is evenly covered with screen holes at equal intervals. A guiding groove is provided on each screen hole. A limiting mounting ring connected to the mixing and stirring frame is installed at one end of the self-cleaning rotary screen, and a plurality of telescopic positioning columns are installed on the limiting mounting ring.

[0008] Preferably, multiple groups of stirring blades are provided on the mixing and stirring frame. Each group of stirring blades extends towards the inner wall of the self-cleaning rotary screen. The stirring blades are used to stir the slag. A docking frame is installed beside the mixing and stirring frame, and a plurality of positioning through holes are installed on the docking frame. The positioning through holes correspond to the telescopic positioning columns one by one.

[0009] Preferably, the pushing and scraping mechanism includes multiple groups of linkage guiding mechanisms and linkage pushing mechanisms installed on the mixing and stirring frame. The linkage pushing mechanism is used to control the telescopic movement of the movable end of the linkage guiding mechanism, and a cleaning scraper is installed on the movable end of the linkage guiding mechanism.

[0010] Preferably, the linkage guiding mechanism includes a plurality of guiding sliders slidably installed on the mixing and stirring frame. A V-shaped bracket is slidably installed on the guiding sliders. A first elastic mounting frame is provided at the bottom of the V-shaped bracket. The first elastic mounting frame is used to connect the cleaning scraper.

[0011] Preferably, the linkage pushing mechanism includes a pushing block slidably installed at the central position of the mixing and stirring frame. A pushing inclined rod is installed between the pushing block and the V-shaped bracket, and an adjusting screw rod is installed between the pushing block and the mixing and stirring frame. The adjusting screw rod is threadedly connected to the pushing block.

[0012] Preferably, the cleaning scraper includes a connecting knife seat connected to the linkage guiding mechanism. A scraper head is also installed on the connecting knife seat, and a material through hole is installed between the connecting knife seat and the scraper head.

[0013] Preferably, the positioning and detaching device includes a fixed mounting frame provided beside the self-cleaning rotary screen. A linear driver is installed on the fixed mounting frame. The output end of the linear driver is installed with a second elastic mounting frame, and a plurality of pushing columns are provided on the second elastic mounting frame. The pushing columns correspond to the positioning through holes one by one.

[0014] Preferably, a linkage control device is also installed at the movable end of the positioning and detachment device. The linkage control device includes a transmission joint installed on the adjusting screw rod. The linkage control device also includes a rotary drive installed on the movable end of the positioning and detachment device. A docking head is installed at the output end of the rotary drive, and the docking head is coaxially arranged with the transmission joint.

[0015] Preferably, the pushing and flushing assembly includes an arc-shaped sprinkler plate installed above the self-cleaning drum screen. A third elastic mounting bracket is installed on the arc-shaped sprinkler plate. A number of dredging push columns are installed on the third elastic mounting bracket at equal intervals, and floating guide wheels are installed on the dredging push columns.

[0016] The beneficial effects of the present invention compared with the prior art are as follows:

[0017] 1. Through the self-cleaning stirring assembly and the pushing and flushing assembly, the present invention realizes the double cleaning of the sieve holes and the inner wall of the drum screen. The mixing and stirring frame in the self-cleaning stirring assembly rotates in coordination with the drum screen, effectively turning and mixing the slag, promoting slag classification and crushing. At the same time, through the installed pushing and scraping mechanism, when needed, it can closely contact the inner wall of the drum screen and use friction to scrape off stubborn slag ash layers. The pushing and flushing assembly sprays cleaning water into the sieve holes and has the function of inserting the movable end, effectively preventing the sieve holes from being blocked and keeping the sieve holes unobstructed. The two work together to significantly improve the cleaning efficiency and effect and extend the service life of the drum screen.

[0018] 2. Under the combined action of the self-cleaning drum screen and the self-cleaning stirring assembly in the present invention, the slag is fully stirred and turned in the drum screen, promoting the uniform distribution and classification screening of the slag. At the same time, the cleaning effect of the pushing and flushing assembly effectively inhibits the problem of sieve hole blockage caused by the viscosity of the slag, ensuring the stability of the aperture of the sieve holes, thereby improving the accuracy of classification screening. In addition, the design of the positioning and detachment device enables the connection state of the mixing and stirring frame to be flexibly controlled, facilitating the adjustment of the cleaning strength and efficiency according to actual needs, and further optimizing the slag treatment process.

[0019] 3. The present invention realizes the function of cleaning without stopping the machine during the slag treatment process. When stubborn slag ash layers adhere to the inner wall of the drum screen, the pushing and scraping mechanism can be started for cleaning without stopping the machine, effectively avoiding the problem of reduced production efficiency caused by stopping the machine for cleaning in the traditional cleaning method. At the same time, the coordinated work of the self-cleaning stirring assembly and the pushing and flushing assembly ensures the continuity and stability of the slag treatment process and significantly improves the overall production efficiency. Description of the Drawings

[0020] Figure 1 is a three-dimensional schematic diagram of a grading, crushing and cleaning device for slag treatment according to the present invention Figure 1 .

[0021] Figure 2Is a three-dimensional schematic diagram of a classification crushing and cleaning device for slag treatment according to the present invention Figure 2 。

[0022] Figure 3 Is the front view of a classification crushing and cleaning device for slag treatment according to the present invention

[0023] Figure 4 Is Figure 3 The plane sectional three-dimensional view at the A-A section in

[0024] Figure 5 Is the three-dimensional schematic diagram of the self-cleaning drum screen in a classification crushing and cleaning device for slag treatment according to the present invention

[0025] Figure 6 Is the three-dimensional schematic diagram of the self-cleaning stirring assembly in a classification crushing and cleaning device for slag treatment according to the present invention Figure 1 。

[0026] Figure 7 Is Figure 6 The partial enlarged view at B in

[0027] Figure 8 Is the three-dimensional schematic diagram of the self-cleaning stirring assembly in a classification crushing and cleaning device for slag treatment according to the present invention Figure 2 。

[0028] Figure 9 Is Figure 8 The partial enlarged view at C in

[0029] Figure 10 Is the three-dimensional schematic diagram of the positioning and disengaging device in a classification crushing and cleaning device for slag treatment according to the present invention

[0030] Figure 11 Is the three-dimensional schematic diagram of the pushing and flushing assembly in a classification crushing and cleaning device for slag treatment according to the present invention

[0031] The reference numerals in the figure are:

[0032] 1. Self-cleaning drum sieve; 11. Sieve holes; 111. Guiding groove; 12. Limit mounting ring; 13. Telescopic positioning column; 2. Self-cleaning stirring assembly; 21. Mixing and stirring frame; 211. Stirring blades; 212. Docking frame; 2121. Positioning perforation; 22. Thrust scraping mechanism; 221. Linkage guiding mechanism; 2211. Guiding slider; 2212. V-shaped bracket; 2213. First elastic mounting frame; 222. Linkage pressing mechanism; 2221. Pressing block; 2222. Adjusting screw rod; 2223. Pressing inclined rod; 223. Cleaning scraper; 2231. Connecting tool holder; 2232. Scraper head; 2233. Material through hole; 23. Positioning and disengaging device; 231. Fixed mounting frame; 232. Linear drive; 233. Second elastic mounting frame; 234. Thrust column; 235. Transmission joint; 236. Docking head; 237. Rotary drive; 3. Thrust flushing assembly; 31. Arc-shaped sprinkler plate; 32. Water outlet holes; 33. Third elastic mounting frame; 34. Unblocking thrust column; 35. Floating guiding wheel. Detailed implementation manners

[0033] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0034] See Figures 1 to 11 As shown in the figure, a grading crushing and cleaning device for slag treatment includes a self-cleaning drum sieve 1 for screening slag. A self-cleaning stirring assembly 2 is installed inside the self-cleaning drum sieve 1, and a thrust flushing assembly 3 is installed on the outer wall of the self-cleaning drum sieve 1. The thrust flushing assembly 3 is used to flush the sieve holes 11 of the self-cleaning drum sieve 1. The self-cleaning stirring assembly 2 includes a mixing and stirring frame 21 detachably connected to the self-cleaning drum sieve 1. The mixing and stirring frame 21 is used to cooperate with the self-cleaning drum sieve 1 to stir the slag. A thrust scraping mechanism 22 is further installed on the mixing and stirring frame 21. The thrust scraping mechanism 22 is used to clean the inner wall of the self-cleaning drum sieve 1. A positioning and disengaging device 23 is installed beside the mixing and stirring frame 21. The positioning and disengaging device 23 is used to control the connection state of the mixing and stirring frame 21.

[0035] After the slag enters the self-cleaning drum sieve 1, the driving device starts, driving the drum sieve to rotate. This rotation action synchronously drives the mixing and stirring frame 21 in the self-cleaning stirring assembly 2 to rotate. The mixing and stirring frame 21 and the drum sieve work together to stir the slag, realizing the rotational filtering and screening of the slag. During this process, the slag is subjected to mechanical stirring, which helps with its grading and crushing.

[0036] Meanwhile, the pushing and flushing assembly 3 sprays cleaning water onto the sieve holes 11 of the drum sieve. The cleaning water not only helps to flush the slag but also effectively inhibits the spread of dust. In addition, the movable end of the pushing and flushing assembly 3 can penetrate into the sieve holes 11 to prevent metal parts in the slag from getting stuck at the positions of the sieve holes 11, thus keeping the sieve holes 11 unobstructed.

[0037] However, during the slag treatment process, a stubborn layer of slag ash may adhere to the inner wall of the drum sieve. Long-term accumulation will affect the fluidity of slag screening. When it is necessary to clean the adhered slag ash layer, the positioning and detachment device 23 is used to control the mixed stirring frame 21 to suspend the positioning connection with the drum sieve, and then the pushing and scraping mechanism 22 is started. The cleaning end of the pushing and scraping mechanism 22 abuts against the inside of the drum sieve. At this time, the drum sieve continues to rotate, causing friction between the inner wall and the cleaning end of the pushing and scraping mechanism 22, so as to effectively scrape and clean the slag ash layer on the inner wall of the drum sieve.

[0038] During this process, the coordinated work of the self-cleaning stirring assembly 2 and the pushing and flushing assembly 3 realizes cleaning without stopping, significantly improving the effect and efficiency of classification and screening.

[0039] The driving device is prior art and will not be elaborated here.

[0040] See Figures 1 to 5 As shown, the sieve holes 11 are evenly distributed on the self-cleaning drum sieve 1 at equal intervals. Each sieve hole 11 is provided with a guiding groove 111. A limit mounting ring 12 connected to the mixed stirring frame 21 is installed at one end of the self-cleaning drum sieve 1, and a plurality of telescopic positioning columns 13 are installed on the limit mounting ring 12.

[0041] The sieve holes 11 are evenly distributed on the self-cleaning drum sieve 1 at equal intervals. The main function of the sieve holes 11 is to screen the slag and achieve classification according to the size and properties of the slag. In order to optimize the cleaning effect, each sieve hole 11 is provided with a guiding groove 111. The main function of the guiding groove 111 is to cooperate with the movable end of the pushing and flushing assembly 3 to ensure that the movable end can stably and accurately insert into the sieve hole 11, so as to more effectively flush the sieve hole 11 and prevent metal parts in the slag from getting stuck at the positions of the sieve holes 11.

[0042] The inner ring of the limit mounting ring 12 is rotatably connected to the mixed stirring frame 21. In order to achieve the stable connection between the mixed stirring frame 21 and the self-cleaning drum sieve 1, a plurality of telescopic positioning columns 13 are installed on the limit mounting ring 12. A spring is installed between the telescopic positioning column 13 and the limit mounting ring 12. The function of the spring is to provide the necessary elastic force and reset function when the telescopic positioning column 13 performs telescopic actions.

[0043] In the normal working state, the telescopic positioning column 13 will clamp and fix the position of the mixing and stirring frame 21 to ensure that the mixing and stirring frame 21 can rotate with the rotation of the self-cleaning drum screen 1. However, when it is necessary to clean the slag ash layer on the inner wall of the self-cleaning drum screen 1, the positioning and disengaging device 23 is required to release the limit on the mixing and stirring frame 21. The positioning and disengaging device 23 will push out the telescopic positioning column 13, causing the telescopic positioning column 13 to disengage from the mixing and stirring frame 21, and at this time the spring will be compressed. When the positioning and disengaging device 23 resets, the elastic force of the spring will push the telescopic positioning column 13 to move outwards, enabling the self-cleaning drum screen 1 to re-clamp and fix the mixing and stirring frame 21, preparing for the next stirring and screening work.

[0044] During the entire working process, the self-cleaning drum screen 1 screens the slag through the sieve holes 11, is cleaned by cooperating with the top-pushing flushing assembly 3 through the guiding groove 111, and realizes stable connection and disconnection with the mixing and stirring frame 21 through the limit mounting ring 12 and the telescopic positioning column 13, thereby realizing effective classification, crushing and cleaning of the slag, as well as cleaning and maintenance of the inner wall of the self-cleaning drum screen 1.

[0045] See Figures 1 to 6 As shown, multiple groups of stirring blades 211 are provided on the mixing and stirring frame 21. Each group of stirring blades 211 extends towards the inner wall of the self-cleaning drum screen 1. The stirring blades 211 are used to stir the slag. A docking frame 212 is installed beside the mixing and stirring frame 21, and a plurality of positioning perforations 2121 are installed on the docking frame 212. The positioning perforations 2121 correspond to the telescopic positioning columns 13 one by one.

[0046] When the self-cleaning drum screen 1 rotates driven by the driving device, the mixing and stirring frame 21 will rotate synchronously because it is connected to the drum screen through the limit mounting ring 12 and the telescopic positioning column 13. During the rotation process, the stirring blades 211 are in full contact with the slag, and through the stirring action, the slag is effectively stirred and crushed, thereby promoting the classification and screening of the slag.

[0047] In addition, a docking frame 212 is installed beside the mixing and stirring frame 21, and a plurality of positioning perforations 2121 are provided on the docking frame 212. The positioning perforations 2121 correspond to the telescopic positioning columns 13 on the self-cleaning drum screen 1 one by one, and the stable connection between the mixing and stirring frame 21 and the drum screen is realized through the way of inserting and positioning. In the normal working state, the telescopic positioning column 13 will be clamped in the positioning perforation 2121 to ensure that the mixing and stirring frame 21 can rotate stably with the rotation of the drum screen.

[0048] When it is necessary to clean the slag ash layer on the inner wall of the drum screen, the positioning and disengaging device 23 will push out the telescopic positioning column 13, causing the telescopic positioning column 13 to disengage from the positioning perforation 2121. At this time, the spring will be compressed. At this time, the limiting state between the mixing and stirring frame 21 and the drum screen is suspended, and the pushing and scraping mechanism 22 can be started to clean the inner wall of the drum screen. After the cleaning is completed, the positioning and disengaging device 23 resets, and the elastic force of the spring pushes the telescopic positioning column 13 to be re-locked in the positioning perforation 2121, and the limiting state between the mixing and stirring frame 21 and the drum screen is restored, preparing for the next mixing and screening operation.

[0049] See Figure 4 and Figure 6 As shown, the pushing and scraping mechanism 22 includes multiple groups of linkage guiding mechanisms 221 and linkage pushing mechanisms 222 installed on the mixing and stirring frame 21. The linkage pushing mechanism 222 is used to control the telescopic movement of the movable end of the linkage guiding mechanism 221, and a cleaning scraper 223 is installed on the movable end of the linkage guiding mechanism 221.

[0050] The pushing and scraping mechanism 22 is composed of multiple groups of linkage guiding mechanisms 221 and linkage pushing mechanisms 222. The main function of the linkage guiding mechanism 221 is to stably install and support the cleaning scraper 223, ensuring that the cleaning scraper 223 maintains a stable posture during the movement, so that it can effectively contact the inner wall of the self-cleaning drum screen 1 and scrape off the slag ash layer.

[0051] The linkage pushing mechanism 222 is responsible for controlling the telescopic movement of the movable end of the linkage guiding mechanism 221. Driven by the linkage pushing mechanism 222, the movable end of the linkage guiding mechanism 221 can drive the cleaning scraper 223 to move up and down on the mixing and stirring frame 21, thereby realizing the adjustment of the position of the cleaning scraper 223. This adjustment mechanism enables the cleaning scraper 223 to accurately reach different positions on the inner wall of the self-cleaning drum screen 1 as needed for targeted cleaning.

[0052] During the cleaning process, when the self-cleaning drum screen 1 rotates driven by the driving device, the pushing and scraping mechanism 22 is started. The linkage pushing mechanism 222 pushes the movable end of the linkage guiding mechanism 221, making the cleaning scraper 223 closely contact the inner wall of the self-cleaning drum screen 1. At this time, due to the continuous rotation of the drum screen, a relative movement is generated between the cleaning scraper 223 and the inner wall, and the slag ash layer attached to the inner wall is scraped off through friction.

[0053] See Figure 6 and Figure 7As shown, the linkage guiding mechanism 221 includes a plurality of guiding sliders 2211 slidably mounted on the mixing and stirring frame 21. A V-shaped bracket 2212 is slidably mounted on the guiding slider 2211. A first elastic mounting frame 2213 is provided at the bottom of the V-shaped bracket 2212, and the first elastic mounting frame 2213 is used to connect the cleaning scraper 223.

[0054] The guiding slider 2211, as a basic component of the linkage guiding mechanism 221, is slidably mounted on the mixing and stirring frame 21 through precise sliding fit. This ensures the smoothness of the guiding slider 2211 during movement and also provides sufficient support force for the guiding slider 2211 to cope with the reaction force generated when the cleaning scraper 223 scrapes the slag ash layer.

[0055] The V-shaped design of the V-shaped bracket 2212 effectively increases the stability of the support. By being slidably mounted on the guiding slider 2211, the V-shaped bracket 2212 can move along with the movement of the guiding slider 2211, thereby driving the cleaning scraper 223 to perform lifting adjustment. In addition, the V-shaped structure of the V-shaped bracket 2212 can also absorb and disperse the impact force during the scraping process to a certain extent, further improving the stability of the entire mechanism.

[0056] The first elastic mounting frame 2213 is responsible for connecting the cleaning scraper 223. The first elastic mounting frame 2213 has a certain resilience. When the cleaning scraper 223 contacts the inner wall of the self-cleaning drum screen 1 and generates friction, the first elastic mounting frame 2213 can absorb part of the impact force, ensure the fitting between the cleaning scraper 223 and the inner wall, and at the same time reduce the wear on the cleaning scraper 223 and the inner wall of the drum screen.

[0057] During the cleaning process, the linkage pushing mechanism 222 pushes the V-shaped bracket 2212 to move up and down, and then drives the cleaning scraper 223 on the V-shaped bracket 2212 and the first elastic mounting frame 2213 to move synchronously. Due to the stable support of the guiding slider 2211 and the V-shaped bracket 2212, and the elastic adjustment of the first elastic mounting frame 2213, the cleaning scraper 223 can always maintain close contact with the inner wall of the self-cleaning drum screen 1 and effectively scrape off the slag ash layer attached to the inner wall through friction.

[0058] See Figures 6 to 9 As shown, the linkage pushing mechanism 222 includes a pushing block 2221 slidably mounted at the axial center position of the mixing and stirring frame 21. A pushing diagonal rod 2223 is installed between the pushing block 2221 and the V-shaped bracket 2212. An adjusting screw rod 2222 is installed between the pushing block 2221 and the mixing and stirring frame 21, and the adjusting screw rod 2222 is threadedly connected to the pushing block 2221.

[0059] One end of the push rod 2223 is rotatably connected to the push block 2221, and the other end is rotatably connected to the V-shaped bracket 2212.

[0060] When it is necessary to move the V-shaped bracket 2212, by adjusting the rotation of the lead screw 2222, the moving distance of the push block 2221 at the axial center position of the mixing and stirring frame 21 can be accurately controlled. The change in the position of the push block 2221 will drive one end of the push rod 2223 to produce a corresponding displacement. Since the push rod 2223 is rotatably connected to both the push block 2221 and the V-shaped bracket 2212, the other end of the push rod 2223 will push the V-shaped bracket 2212 to move stably.

[0061] See Figures 6 to 9 As shown, the cleaning scraper 223 includes a connecting tool holder 2231 connected to the linkage guiding mechanism 221. A scraper head 2232 is also installed on the connecting tool holder 2231, and a material through-hole 2233 is installed between the connecting tool holder 2231 and the scraper head 2232.

[0062] The connecting tool holder 2231 plays a role in stably supporting the scraper head 2232. It is connected to the linkage guiding mechanism 221 to ensure that the scraper head 2232 maintains a stable posture during movement. The material through-hole 2233 is located between the connecting tool holder 2231 and the scraper head 2232. The material through-hole 2233 is to reduce the resistance caused by the slag to the cleaning scraper 223. During the scraping process, the residual slag may accumulate between the scraper head 2232 and the inner wall, increasing the resistance of the scraper. The design of the material through-hole 2233 enables these residual slags to pass through the through-hole, thereby reducing the resistance and improving the scraping efficiency.

[0063] When the self-cleaning drum screen 1 rotates driven by the driving device, the top-pushing scraping mechanism 22 is activated. The linkage pushing mechanism 222 pushes the movable end of the linkage guiding mechanism 221, making the cleaning scraper 223 in close contact with the inner wall of the self-cleaning drum screen 1. At this time, the scraper head 2232 starts to move relative to the inner wall, and scrapes off the slag ash layer attached to the inner wall through friction. Part of the scraped slag passes through the material through-hole 2233, thus realizing the effective cleaning of the inner wall of the drum screen.

[0064] See Figure 2 and Figure 10 As shown, the positioning and disengaging device 23 includes a fixed mounting frame 231 arranged beside the self-cleaning drum screen 1. A linear driver 232 is installed on the fixed mounting frame 231. The output end of the linear driver 232 is installed with a second elastic mounting frame 233. A plurality of push columns 234 are provided on the second elastic mounting frame 233, and the push columns 234 correspond to the positioning through-holes 2121 one by one.

[0065] The fixed mounting bracket 231 is stably arranged beside the self-cleaning drum sieve 1, providing a stable support foundation for the linear drive 232. As a power source, the linear drive 232 is connected to the second elastic mounting bracket 233 and is responsible for driving the second elastic mounting bracket 233 to perform linear reciprocating motion. The second elastic mounting bracket 233 has a certain elasticity. A plurality of pushing columns 234 are provided on the second elastic mounting bracket 233, and the pushing columns 234 correspond to the positioning through holes 2121 on the docking frame 212 one by one.

[0066] In the normal working state, the mixing and stirring frame 21 is clamped and fixed to the telescopic positioning column 13 on the self-cleaning drum sieve 1 through the positioning through holes 2121 on the docking frame 212, ensuring that the mixing and stirring frame 21 can rotate stably with the rotation of the drum sieve. At this time, the positioning and disengaging device 23 is in the standby state, the linear drive 232 is not started, and the second elastic mounting bracket 233 and the pushing columns 234 thereon do not contact the docking frame 212.

[0067] When it is necessary to release the locking of the mixing and stirring frame 21, the linear drive 232 is started and pushes the second elastic mounting bracket 233 to move towards the docking frame 212. As the second elastic mounting bracket 233 approaches, the pushing column 234 gradually abuts against one side of the docking frame 212. Due to the elastic pressing effect of the second elastic mounting bracket 233, when the positioning through hole 2121 on the docking frame 212 rotates to the position of the pushing column 234, the pushing column 234 is inserted into the positioning through hole 2121 under the action of the elastic force. At this time, the thrust of the pushing column 234 acts on the telescopic positioning column 13, pushing the telescopic positioning column 13 out of the positioning through hole 2121, thereby realizing the unlocking of the mixing and stirring frame 21. After unlocking, the connection between the mixing and stirring frame 21 and the self-cleaning drum sieve 1 is suspended, and the top-pushing and scraping mechanism 22 can be started to clean the inner wall of the drum sieve.

[0068] After the cleaning is completed, it is necessary to restore the connection between the mixing and stirring frame 21 and the self-cleaning drum sieve 1. At this time, the linear drive 232 is started in the reverse direction to drive the second elastic mounting bracket 233 to reset. As the second elastic mounting bracket 233 moves away, the pushing column 234 withdraws from the positioning through hole 2121. Subsequently, the self-cleaning drum sieve 1 continues to rotate, and the telescopic positioning column 13 gradually approaches and is re-clamped into the positioning through hole 2121 as it rotates. Thus, the connection between the mixing and stirring frame 21 and the self-cleaning drum sieve 1 is restored, preparing for the next mixing and screening operation.

[0069] See Figure 6 and Figure 10As shown, a linkage control device is also installed at the movable end of the positioning and disengaging device 23. The linkage control device includes a transmission joint 235 installed on the adjusting screw rod 2222. The linkage control device also includes a rotary driver 237 installed at the movable end of the positioning and disengaging device 23. A docking head 236 is installed at the output end of the rotary driver 237, and the docking head 236 is coaxially arranged with the transmission joint 235.

[0070] When the positioning and disengaging device 23 executes an action and drives the mixing and stirring frame 21 to disengage from the connection of the self-cleaning drum screen 1, during this process, the docking head 236 and the transmission joint 235 gradually approach and finally fit together to form a tight rotary transmission path.

[0071] At this time, the rotary driver 237 is started and drives the docking head 236 to rotate. Since the docking head 236 and the transmission joint 235 are coaxially arranged and tightly fitted, the transmission joint 235 will rotate synchronously with the docking head 236. The rotational movement of the transmission joint 235 is transmitted to the adjusting screw rod 2222 through a threaded connection, causing the adjusting screw rod 2222 to rotate.

[0072] See Figure 1 and Figure 11 As shown, the top-pushing and flushing assembly 3 includes an arc-shaped sprinkler plate 31 installed above the self-cleaning drum screen 1. A third elastic mounting bracket 33 is installed on the arc-shaped sprinkler plate 31. A number of dredging top columns 34 are installed at equal intervals on the third elastic mounting bracket 33, and floating guide wheels 35 are installed on the dredging top columns 34.

[0073] When starting to work, the water outlet holes 32 inside the arc-shaped sprinkler plate 31 will accurately spray water onto some of the screen holes 11 of the self-cleaning drum screen 1. These water flows not only help to wash the slag, but also effectively inhibit the diffusion of dust, and at the same time play a role in dredging the screen holes 11 to prevent the slag from blocking the screen holes 11.

[0074] The third elastic mounting bracket 33 ensures that the dredging top columns 34 can stably extend towards the outer wall of the self-cleaning drum screen 1 through its elastic characteristics. During the rotation of the self-cleaning drum screen 1, the floating guide wheels 35 on the dredging top columns 34 will contact the outer wall of the drum screen. These floating guide wheels 35 not only play a role in reducing friction, but also ensure that the dredging top columns 34 can stably insert into the screen holes 11 when the drum screen rotates. To optimize the cleaning effect, a guiding groove 111 is designed on each screen hole 11 of the self-cleaning drum screen 1. The guiding groove 111 can guide the moving path of the floating guide wheels 35 when the drum screen rotates, ensuring that the dredging top columns 34 can accurately insert into the screen holes 11. At the same time, the rolling characteristics of the floating guide wheels 35 further reduce the friction with the outer wall of the drum screen, improving the cleaning efficiency and stability.

[0075] Through the water spraying dredging and the physical insertion of the dredging top column 34, the pushing and flushing assembly 3 achieves a dual cleaning effect on the sieve holes 11. This combination not only ensures the unobstructedness of the sieve holes 11, but also significantly improves the efficiency and effect of slag treatment.

[0076] Specific working principle:

[0077] After the slag enters the self-cleaning rotary drum screen 1, the driving device starts and drives the rotary drum screen to rotate. This rotation action synchronously drives the mixing and stirring frame 21 in the self-cleaning stirring assembly 2 to rotate. The mixing and stirring frame 21 works in coordination with the rotary drum screen to stir the slag, realizing the rotational filtration and screening of the slag. During this process, the slag is mechanically stirred, which helps with its classification and crushing.

[0078] Meanwhile, the pushing and flushing assembly 3 sprays cleaning water onto the sieve holes 11 of the rotary drum screen. The cleaning water not only helps with the flushing of the slag, but also effectively inhibits the diffusion of dust. In addition, the movable end of the pushing and flushing assembly 3 can penetrate into the sieve holes 11 to prevent metal parts in the slag from getting stuck at the sieve hole 11 position, thus keeping the sieve holes 11 unobstructed.

[0079] However, during the slag treatment process, a stubborn layer of slag ash may adhere to the inner wall of the rotary drum screen. Long-term accumulation will affect the fluidity of slag screening. When it is necessary to clean the adhered slag ash layer, the positioning and detachment device 23 is used to control the mixing and stirring frame 21 to pause and be positioned and connected to the rotary drum screen, and then the pushing and scraping mechanism 22 is started. The cleaning end of the pushing and scraping mechanism 22 abuts against the inside of the rotary drum screen. At this time, the rotary drum screen continues to rotate, causing friction between the inner wall and the cleaning end of the pushing and scraping mechanism 22, thereby effectively scraping and cleaning the slag ash layer on the inner wall of the rotary drum screen.

[0080] During this process, the coordinated work of the self-cleaning stirring assembly 2 and the pushing and flushing assembly 3 realizes cleaning without stopping the machine, significantly improving the effect and efficiency of classification and screening.

[0081] The above embodiments only represent one or several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A grading crushing and cleaning device for slag treatment, characterized in that: The invention comprises a self-cleaning drum screen (1) for screening slag, wherein a self-cleaning stirring assembly (2) is installed inside the self-cleaning drum screen (1), a top-pushing water flushing assembly (3) is installed on the outer wall of the self-cleaning drum screen (1), a plurality of top dredging columns (34) are installed on the top-pushing water flushing assembly (3), the top-pushing water flushing assembly (3) is used to flush the sieve holes (11) of the self-cleaning drum screen (1), and the top dredging columns (34) can be inserted into and dredge the sieve holes (11), the self-cleaning stirring assembly (2) comprises a mixing stirring frame (21) detachably connected to the self-cleaning drum screen (1), the mixing stirring frame (21) is used to cooperate with the self-cleaning drum screen (1) to stir the slag, and a top-pushing scraping mechanism (22) is also installed on the mixing stirring frame (21), and the top-pushing scraping mechanism (22) comprises a plurality of linkage guide mechanisms (221) and linkage pushing mechanisms (222) installed on the mixing stirring frame (21). 2), a linkage pushing mechanism (222) is used to control the telescopic movement of the movable end of the linkage guiding mechanism (221); a cleaning scraper (223) is installed on the movable end of the linkage guiding mechanism (221); the cleaning scraper (223) is used to clean the inner wall of the self-cleaning drum screen (1); a positioning and disengaging device (23) is installed on the side of the mixing and stirring frame (21); a limiting mounting ring (12) connected to the mixing and stirring frame (21) is installed on one end of the self-cleaning drum screen (1); a plurality of telescopic positioning columns (13) are installed on the limiting mounting ring (12); a spring is installed between the telescopic positioning columns (13) and the limiting mounting ring (12); a docking frame (212) is installed on the side of the mixing and stirring frame (21); a plurality of positioning through holes (2121) are installed on the docking frame (212); the positioning through holes (2121) correspond one to one with the telescopic positioning columns (13); Under normal working conditions, the telescopic positioning column (13) is engaged in the positioning through hole (2121), so that the mixing and stirring frame (21) rotates together with the self-cleaning drum screen (1); when it is necessary to clean the inner wall of the self-cleaning drum screen (1), the movable end of the positioning detachment device (23) is extended and pushes out the telescopic positioning column (13), so that the telescopic positioning column (13) is detached from the positioning through hole (2121); at this time, the limiting state of the mixing and stirring frame (21) and the self-cleaning drum screen (1) is suspended, and the pushing and scraping mechanism (22) is started to clean the inner wall of the self-cleaning drum screen (1); after the cleaning is completed, the movable end of the positioning detachment device (23) is reset, and the elastic force of the spring pushes the telescopic positioning column (13) to be re-engaged in the positioning through hole (2121), and the limiting state of the mixing and stirring frame (21) and the self-cleaning drum screen (1) is restored.

2. A grading crushing and cleaning device for slag treatment according to claim 1, characterized in that: The self-cleaning drum screen (1) is evenly spaced with screen holes (11), and each screen hole (11) is provided with a guide groove (111).

3. The grading crushing and cleaning device for slag treatment according to claim 1, characterized in that: A plurality of groups of stirring blades (211) are provided on the mixing and stirring frame (21), each group of stirring blades (211) extends toward the inner wall of the self-cleaning drum screen (1), and the stirring blades (211) are used to stir the slag.

4. The grading crushing and cleaning device for slag treatment according to claim 1, characterized in that: The linkage guide mechanism (221) comprises two guide sliders (2211) slidably mounted on the mixing and stirring frame (21); a V-shaped bracket (2212) is slidably mounted on the guide sliders (2211); a first elastic mounting bracket (2213) is provided at the bottom of the V-shaped bracket (2212); and the first elastic mounting bracket (2213) is used to connect the cleaning scraper (223).

5. The grading crushing and cleaning device for slag treatment according to claim 4, characterized in that: The linkage pushing mechanism (222) comprises a pushing block (2221) slidably mounted at the axial center position of the mixing and stirring frame (21); a pushing inclined rod (2223) is mounted between the pushing block (2221) and the V-shaped bracket (2212); an adjusting screw rod (2222) is mounted between the pushing block (2221) and the mixing and stirring frame (21); and the adjusting screw rod (2222) is threadedly connected to the pushing block (2221).

6. The grading crushing and cleaning device for slag treatment according to claim 4, characterized in that: The cleaning scraper (223) comprises a connecting blade seat (2231) connected to the first elastic mounting frame (2213), a scraper head (2232) is also mounted on the connecting blade seat (2231), and a material through-hole (2233) is provided between the connecting blade seat (2231) and the scraper head (2232).

7. The grading crushing and cleaning device for slag treatment according to claim 5, characterized in that: The positioning and disengaging device (23) comprises a fixed mounting frame (231) arranged beside the self-cleaning drum screen (1), a linear drive (232) being mounted on the fixed mounting frame (231), a second elastic mounting frame (233) being mounted on the output end of the linear drive (232), a plurality of ejection columns (234) being arranged on the second elastic mounting frame (233), and the ejection columns (234) corresponding one-to-one to the positioning through holes (2121).

8. The grading crushing and cleaning device for slag treatment according to claim 7, characterized in that: The movable end of the positioning and disengaging device (23) is also equipped with a linkage control device, and a transmission joint (235) is installed at the end of the adjusting screw rod (2222). The linkage control device also includes a rotation driver (237) installed on the movable end of the positioning and disengaging device (23), and a docking joint (236) is installed at the output end of the rotation driver (237). The docking joint (236) and the transmission joint (235) are coaxially arranged.

9. The grading crushing and cleaning device for slag treatment according to claim 2, characterized in that: The push-and-flush assembly (3) comprises an arc-shaped water sprinkling plate (31) mounted above the self-cleaning drum screen (1); a third elastic mounting frame (33) is mounted on the arc-shaped water sprinkling plate (31); a plurality of dredging top columns (34) distributed at equal intervals are mounted on the third elastic mounting frame (33); a floating guide wheel (35) is mounted on the dredging top column (34); and a guide groove (111) is capable of guiding the movement path of the floating guide wheel (35) when it rotates on the self-cleaning drum screen (1).

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