Graded crushing and cleaning device for slag treatment

Abstract

The invention relates to the technical field of slag processing, in particular to a graded crushing and cleaning device for slag treatment, which comprises a self-cleaning drum screen for screening slag, a self-cleaning stirring component is mounted in the self-cleaning drum screen, and a pushing flushing component is mounted on the outer wall of the self-cleaning drum screen. The pushing flushing assembly is used for flushing screen holes of the self-cleaning drum screen, the self-cleaning stirring assembly comprises a mixing stirring frame detachably connected with the self-cleaning drum screen, the mixing stirring frame is used for being matched with the self-cleaning drum screen to stir slag, and a pushing scraping mechanism is further installed on the mixing stirring frame. The pushing and scraping mechanism is used for cleaning the inner wall of the self-cleaning drum screen, a positioning and separating device is installed beside the mixing and stirring frame and used for regulating and controlling the connecting state of the mixing and stirring frame, and the classified screening effect and screening efficiency are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of slag processing, and in particular to a grading, crushing and cleaning device for slag processing. Background Art

[0002] Incineration residue refers to the general term for slag, leaked slag, boiler ash and fly ash produced during the waste incineration process. The incineration ash contains a certain amount of heavy metal substances. If not properly handled, it will cause pollution to the environment. Incineration residue can generally be used as a building material. It can be made into lightweight aggregate, floor tiles and wall tiles of building materials. It has a greater potential market in replacing traditional building fillers.

[0003] Chinese patent number CN118080102B discloses a graded crushing and cleaning method for waste incineration slag, which is applied to a graded crushing and cleaning device for waste incineration slag, the device includes a support frame installed on the rear side of the top of a concrete base: a screening component is arranged on the top of the support frame, the screening component includes an inclined support frame fixedly connected to the top of the support frame, a rotatable drum screen is arranged on the top of the inclined support frame, and a plurality of roller frames are fixedly connected to the front and rear sides of the top of the inclined support frame, and a friction wheel is rotatably connected to the inner cavity of the roller frame. The device screens the material through the coordinated use of the support frame and the screening component, and then crushes the particle size of the same specification through the setting of the crushing component, and finally, the material is dusted and cleaned under the coordinated use of the water supply component and the propulsion component, so as to achieve the purpose of preventing dust leakage, graded crushing to prevent teeth from getting stuck, and preventing screening blockage.

[0004] Although the above device can achieve the classification, crushing and cleaning of slag, it still has significant defects. Slag becomes sticky when it comes into contact with water and easily adheres to the inner wall and sieve holes of the drum screen. Although it can be rinsed by spraying water from the outside of the drum screen, this method is often difficult to effectively remove the slag attached 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 inside of the sieve hole may also reduce the aperture due to dirt accumulation, which seriously affects the efficiency of grading and screening. Summary of the invention

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

[0006] In order to solve the problems of the prior art, the present invention provides a grading, crushing and cleaning device for slag treatment, comprising a self-cleaning drum screen for screening slag, a self-cleaning stirring assembly is installed inside the self-cleaning drum screen, a top-pushing flushing assembly is installed on the outer wall of the self-cleaning drum screen, the top-pushing flushing assembly is used to flush the sieve holes of the self-cleaning drum screen, the self-cleaning stirring assembly comprises a mixing and stirring frame detachably connected to the self-cleaning drum screen, the mixing and stirring frame is used to cooperate with the self-cleaning drum screen to stir the slag, a top-pushing scraping mechanism is also installed on the mixing and stirring frame, the top-pushing scraping mechanism is used to clean the inner wall of the self-cleaning drum screen, and a positioning and disengagement device is installed on the side of the mixing and stirring frame, and the positioning and disengagement device is used to adjust the connection state of the mixing and stirring frame.

[0007] Preferably, the self-cleaning drum screen is evenly spaced with sieve holes, each sieve hole is provided with a guide groove, one end of the self-cleaning drum screen is provided with a limit mounting ring connected to the mixing and stirring frame, and a plurality of telescopic positioning columns are installed on the limit mounting ring.

[0008] Preferably, the mixing and stirring rack is provided with a plurality of groups of stirring blades, each group of stirring blades extends toward the inner wall of the self-cleaning drum screen, the stirring blades are used to stir the slag, a docking frame is installed on the side of the mixing and stirring rack, a plurality of positioning perforations are installed on the docking frame, and the positioning perforations correspond one-to-one to the telescopic positioning columns.

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

[0010] Preferably, the linkage guiding mechanism comprises a plurality of guiding slide blocks slidably mounted on the mixing and stirring frame, a V-shaped bracket is slidably mounted on the guiding slide block, a first elastic mounting frame is provided at the bottom of the V-shaped bracket, and 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 axial position of the mixing and stirring frame, a pushing inclined rod is installed between the pushing block and the V-shaped bracket, an adjusting screw is installed between the pushing block and the mixing and stirring frame, and the adjusting screw is threadedly connected to the pushing block.

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

[0013] Preferably, the positioning and disengagement device includes a fixed mounting frame arranged beside the self-cleaning drum screen, a linear drive is installed on the fixed mounting frame, a second elastic mounting frame is installed on the output end of the linear drive, and a plurality of ejection columns are provided on the second elastic mounting frame, and the ejection columns correspond one-to-one to the positioning perforations.

[0014] Preferably, the movable end of the positioning and disengagement device is also equipped with a linkage control device, which 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 disengagement device, and a docking joint is installed at the output end of the rotary drive, which is coaxially arranged with the transmission joint.

[0015] Preferably, the push flushing assembly includes an arc-shaped sprinkler plate installed above the self-cleaning drum screen, a third elastic mounting frame is installed on the arc-shaped sprinkler plate, a plurality of equally spaced dredging top columns are installed on the third elastic mounting frame, and a floating guide wheel is installed on the dredging top column.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes double cleaning of the screen holes and inner wall of the drum screen through the self-cleaning stirring component and the top-pushing flushing component. The mixing stirring frame in the self-cleaning stirring component rotates in coordination with the drum screen, effectively turning over the slag, promoting slag grading and crushing. At the same time, through the installed top-pushing scraping mechanism, it can tightly contact the inner wall of the drum screen when necessary, and use friction to scrape off the stubborn slag ash layer. The top-pushing flushing component sprays cleaning water to the screen holes, and has the function of interlacing the active end, which effectively prevents the screen holes from being blocked and keeps the screen holes unobstructed. The two work together to significantly improve the cleaning efficiency and effect, and extend the service life of the drum screen.

[0017] 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, which promotes the uniform distribution and graded screening of the slag. At the same time, the cleaning action of the top-pushing flushing assembly effectively suppresses the clogging of the sieve holes caused by the viscosity of the slag, ensures the stability of the aperture of the sieve holes, and thus improves the accuracy of graded screening. In addition, the design of the positioning and disengagement device allows the connection state of the mixing and stirring frame to be flexibly controlled, which is convenient for adjusting the cleaning intensity and efficiency according to actual needs, and further optimizes the slag treatment process.

[0018] 3. The present invention realizes the function of non-stop cleaning during the slag treatment process. When a stubborn slag ash layer is attached to the inner wall of the drum screen, the push-pushing 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 component and the push-pushing flushing component ensures the continuity and stability of the slag treatment process, significantly improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of a grading crushing and cleaning device for slag treatment according to the present invention Figure 1 .

[0020] Figure 2A three-dimensional schematic diagram of a grading crushing and cleaning device for slag treatment according to the present invention Figure 2 .

[0021] Figure 3 It is a front view of a grading crushing and cleaning device for slag treatment according to the present invention.

[0022] Figure 4 yes Figure 3 A three-dimensional plane cross-sectional view at section AA.

[0023] Figure 5 It is a three-dimensional schematic diagram of a self-cleaning drum screen in a grading, crushing and cleaning device for slag treatment according to the present invention.

[0024] Figure 6 The present invention is a three-dimensional schematic diagram of a self-cleaning stirring assembly in a grading crushing and cleaning device for slag treatment. Figure 1 .

[0025] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle.

[0026] Figure 8 The present invention is a three-dimensional schematic diagram of a self-cleaning stirring assembly in a grading crushing and cleaning device for slag treatment. Figure 2 .

[0027] Fig. 9 yes Figure 8 A partial enlarged view of point C in the middle.

[0028] Fig.10 It is a three-dimensional schematic diagram of a positioning and separation device in a grading, crushing and cleaning device for slag treatment according to the present invention.

[0029] Fig.11 The utility model is a stereoscopic schematic diagram of a top-pushing and flushing assembly in a grading, crushing and cleaning device for slag treatment according to the present invention.

[0030] The numbers in the figure are: 1. Self-cleaning drum screen; 11. Screen hole; 111. Guide groove; 12. Positioning mounting ring; 13. Telescopic positioning column; 2. Self-cleaning stirring assembly; 21. Mixing stirring frame; 211. Stirring blade; 212. Docking frame; 2121. Positioning perforation; 22. Pushing and scraping mechanism; 221. Linkage guiding mechanism; 2211. Guide slider; 2212. V-shaped bracket; 2213. First elastic mounting frame; 222. Linkage pushing mechanism; 2221. Pushing block; 2222. Adjusting screw rod; 222 3. Pushing and pressing diagonal rod; 223. Cleaning scraper; 2231. Connecting knife seat; 2232. Scraper head; 2233. Material penetration; 23. Positioning and disengaging device; 231. Fixed mounting frame; 232. Linear drive; 233. Second elastic mounting frame; 234. Pushing column; 235. Transmission joint; 236. Butt joint; 237. Rotary drive; 3. Pushing flushing assembly; 31. Arc sprinkler plate; 32. Water outlet; 33. Third elastic mounting frame; 34. Dredging column; 35. Floating guide wheel. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figures 1 to 11 As shown, a grading crushing and cleaning device for slag treatment includes a self-cleaning drum screen 1 for screening slag, a self-cleaning stirring assembly 2 is installed inside the self-cleaning drum screen 1, and a push-pushing flushing assembly 3 is installed on the outer wall of the self-cleaning drum screen 1. The push-pushing flushing assembly 3 is used to flush the sieve holes 11 of the self-cleaning drum screen 1. The self-cleaning stirring assembly 2 includes a mixing and stirring frame 21 detachably connected to the self-cleaning drum screen 1, and the mixing and stirring frame 21 is used to cooperate with the self-cleaning drum screen 1 to stir the slag. A push-pushing scraping mechanism 22 is also installed on the mixing and stirring frame 21, and the push-pushing scraping mechanism 22 is used to clean the inner wall of the self-cleaning drum screen 1. A positioning and disengagement device 23 is installed on the side of the mixing and stirring frame 21, and the positioning and disengagement device 23 is used to adjust the connection state of the mixing and stirring frame 21.

[0033] After the slag enters the self-cleaning drum screen 1, the driving device is started to drive the 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 conjunction with the drum screen to stir the slag, thereby realizing the rotational filtering and screening of the slag. In this process, the slag is mechanically stirred, which helps to classify and crush it.

[0034] At the same time, the push-pushing water assembly 3 sprays cleaning water to the screen holes 11 of the drum screen, which not only helps to flush the slag, but also effectively inhibits the diffusion of dust. In addition, the movable end of the push-pushing water assembly 3 can be inserted into the screen holes 11 to prevent the metal parts in the slag from being stuck in the screen holes 11, thereby keeping the screen holes 11 unobstructed.

[0035] However, during the slag treatment process, a stubborn slag ash layer may adhere to the inner wall of the drum screen, and long-term accumulation will affect the fluidity of the slag screening. When it is necessary to clean the attached slag ash layer, the positioning and disengaging device 23 is used to control the mixing and stirring frame 21 to suspend the positioning connection with the drum screen, and then the push-pushing and scraping mechanism 22 is started. The cleaning end of the push-pushing and scraping mechanism 22 conflicts with the inside of the drum screen. At this time, the drum screen continues to rotate, causing friction between the inner wall and the cleaning end of the push-pushing and scraping mechanism 22, thereby effectively scraping and cleaning the slag ash layer on the inner wall of the drum screen.

[0036] In this process, the coordinated work of the self-cleaning stirring component 2 and the top-pushing flushing component 3 realizes non-stop cleaning, which significantly improves the effect and efficiency of graded screening.

[0037] The driving device is prior art and will not be described in detail here.

[0038] See also Figures 1 to 5 As shown, the self-cleaning drum screen 1 is evenly spaced with sieve holes 11, each sieve hole 11 is provided with a guide groove 111, and one end of the self-cleaning drum screen 1 is provided with a limit mounting ring 12 connected to the mixing and stirring frame 21, and a plurality of telescopic positioning columns 13 are installed on the limit mounting ring 12.

[0039] The self-cleaning drum screen 1 is evenly spaced with screen holes 11, and the main function of the screen holes 11 is to screen the slag and classify it according to the size and properties of the slag. In order to optimize the cleaning effect, each screen hole 11 is provided with a guide groove 111, and the main function of the guide groove 111 is to cooperate with the active end of the top-pushing flushing component 3 to ensure that the active end can be stably and accurately inserted into the screen hole 11, so as to more effectively flush the screen hole 11 and prevent the metal parts in the slag from being stuck in the screen hole 11.

[0040] The inner ring of the limit mounting ring 12 is rotatably connected to the mixing and stirring frame 21. In order to achieve a stable connection between the mixing and stirring frame 21 and the self-cleaning drum screen 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, and the function of the spring is to provide the necessary elastic force and reset function when the telescopic positioning column 13 performs a telescopic action.

[0041] Under normal working conditions, 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, it is necessary to release the limit on the mixing and stirring frame 21 through the positioning and disengaging device 23. The positioning and disengaging device 23 will push out the telescopic positioning column 13, so that the telescopic positioning column 13 is disengaged from the mixing and stirring frame 21, and the spring will be compressed at this time. When the positioning and disengaging device 23 is reset, the elastic force of the spring will push the telescopic positioning column 13 to move outward, so that the self-cleaning drum screen 1 can re-clamp and fix the mixing and stirring frame 21, so as to prepare for the next mixing and screening work.

[0042] During the entire working process, the self-cleaning drum screen 1 screens the slag through the screen holes 11, cleans it through the guide groove 111 in cooperation with the push-pushing flushing assembly 3, and achieves stable connection and release of connection with the mixing and stirring frame 21 through the limit mounting ring 12 and the telescopic positioning column 13, thereby achieving effective grading, crushing and cleaning of the slag, as well as cleaning and maintenance of the inner wall of the self-cleaning drum screen 1.

[0043] See also Figures 1 to 6 As shown, the mixing and stirring frame 21 is provided with a plurality of groups of stirring blades 211, 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. A docking frame 212 is installed on the side of the mixing and stirring frame 21, and a plurality of positioning through holes 2121 are installed on the docking frame 212, and the positioning through holes 2121 correspond one-to-one to the telescopic positioning columns 13.

[0044] When the self-cleaning drum screen 1 rotates driven by the driving device, the mixing and stirring frame 21 rotates 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 the slag is effectively stirred and crushed through the twisting action, thereby promoting the classification and screening of the slag.

[0045] In addition, a docking frame 212 is installed on the side of the mixing frame 21, and a plurality of positioning holes 2121 are provided on the docking frame 212. The positioning holes 2121 correspond one-to-one with the telescopic positioning posts 13 on the self-cleaning drum screen 1, and a stable connection between the mixing frame 21 and the drum screen is achieved by interlacing and positioning. Under normal working conditions, the telescopic positioning posts 13 will be stuck in the positioning holes 2121, ensuring that the mixing frame 21 can rotate stably with the rotation of the drum screen.

[0046] 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, so that the telescopic positioning column 13 will be disengaged from the positioning through hole 2121, and the spring will be compressed. At this time, the limiting state of 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 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 drum screen is restored, preparing for the next mixing and screening work.

[0047] See also Figure 4 and Figure 6 As shown, the push scraping mechanism 22 includes multiple groups of linkage guide mechanisms 221 and linkage pushing mechanisms 222 installed on the mixing frame 21. The linkage pushing mechanism 222 is used to control the telescopic movement of the active end of the linkage guide mechanism 221. A cleaning scraper 223 is installed on the active end of the linkage guide mechanism 221.

[0048] The push scraping mechanism 22 is composed of multiple groups of linkage guide mechanisms 221 and linkage push mechanisms 222. The main function of the linkage guide mechanism 221 is to stably install and support the cleaning scraper 223, ensuring that the cleaning scraper 223 maintains a stable posture during movement, so that it can effectively contact the inner wall of the self-cleaning drum screen 1 and scrape off the slag ash layer.

[0049] The linkage pushing mechanism 222 is responsible for controlling the movable end of the linkage guiding mechanism 221 to move in a telescopic manner. Through the driving of 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 frame 21, thereby adjusting the position of the cleaning scraper 223. This adjustment mechanism enables the cleaning scraper 223 to accurately reach different positions of the inner wall of the self-cleaning drum screen 1 as needed, and perform targeted cleaning.

[0050] During the cleaning process, when the self-cleaning drum screen 1 rotates driven by the driving device, the push scraping mechanism 22 is activated. The linkage pushing mechanism 222 pushes the movable end of the linkage guiding mechanism 221, so that the cleaning scraper 223 is in close contact with the inner wall of the self-cleaning drum screen 1. At this time, due to the continuous rotation of the drum screen, the cleaning scraper 223 and the inner wall generate relative motion, and the slag ash layer attached to the inner wall is scraped off by friction.

[0051] See also 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 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 .

[0052] The guide slider 2211, as the basic component of the linkage guide mechanism 221, is installed on the mixing frame 21 through precise sliding fit. The stability of the guide slider 2211 during movement is ensured, and sufficient support force is provided for the guide slider 2211 to cope with the reaction force generated by the cleaning scraper 223 when scraping the slag ash layer.

[0053] The V-shaped design of the V-shaped bracket 2212 effectively increases the stability of the support. By being slidably mounted on the guide slider 2211, the V-shaped bracket 2212 can move with the movement of the guide slider 2211, thereby driving the cleaning scraper 223 to be raised and lowered. In addition, the V-shaped structure of the V-shaped bracket 2212 can also absorb and disperse the impact force of the cleaning scraper 223 during the scraping process to a certain extent, further improving the stability of the entire mechanism.

[0054] 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 and rubs against the inner wall of the self-cleaning drum screen 1, the first elastic mounting frame 2213 can absorb part of the impact force, ensuring the fit between the cleaning scraper 223 and the inner wall, while reducing the wear on the cleaning scraper 223 and the inner wall of the drum screen.

[0055] During the cleaning process, the linkage pushing mechanism 222 pushes the V-shaped bracket 2212 to move up and down, thereby driving the V-shaped bracket 2212 and the cleaning scraper 223 on the first elastic mounting frame 2213 to move synchronously. Due to the stable support of the guide 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.

[0056] See also Figures 6 to 9 As shown, the linkage pushing mechanism 222 includes a pushing block 2221 slidably installed at the axial position of the mixing and stirring frame 21, a pushing inclined 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.

[0057] One end of the pushing inclined rod 2223 is rotatably connected to the pushing block 2221 , and the other end is rotatably connected to the V-shaped bracket 2212 .

[0058] When the V-shaped bracket 2212 needs to be pushed to move, the moving distance of the pushing block 2221 on the axis position of the mixing and stirring frame 21 can be accurately controlled by adjusting the rotation of the screw rod 2222. The change in the position of the pushing block 2221 will drive one end of the pushing inclined rod 2223 to produce a corresponding displacement. Since the pushing inclined rod 2223 is rotatably connected to the pushing block 2221 and the V-shaped bracket 2212, the other end of the pushing inclined rod 2223 will push the V-shaped bracket 2212 to move stably.

[0059] See also Figures 6 to 9 As shown, the cleaning scraper 223 includes a connecting blade seat 2231 connected to the linkage guide mechanism 221 , a scraper head 2232 is also installed on the connecting blade seat 2231 , and a material through-hole 2233 is installed between the connecting blade seat 2231 and the scraper head 2232 .

[0060] The connecting blade seat 2231 plays the role of stably supporting the scraper head 2232. It is connected to the linkage guide 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 blade seat 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 allows these residual slag to pass through the through-hole, thereby reducing the resistance and improving the scraping efficiency.

[0061] When the self-cleaning drum screen 1 rotates driven by the driving device, the push scraping mechanism 22 is activated. The linkage pushing mechanism 222 pushes the movable end of the linkage guiding mechanism 221, so that the cleaning scraper 223 is in close contact with the inner wall of the self-cleaning drum screen 1. At this time, the scraper head 2232 begins to move relative to the inner wall, and the slag ash layer attached to the inner wall is scraped off by friction. The scraped slag part passes through the material through-hole 2233, thereby achieving effective cleaning of the inner wall of the drum screen.

[0062] See also Figure 2 and Fig.10 As shown, the positioning and disengagement device 23 includes a fixed mounting frame 231 arranged next to the self-cleaning drum screen 1, a linear drive 232 is installed on the fixed mounting frame 231, a second elastic mounting frame 233 is installed at the output end of the linear drive 232, and a plurality of push-out columns 234 are provided on the second elastic mounting frame 233, and the push-out columns 234 correspond one-to-one to the positioning through holes 2121.

[0063] The fixed mounting frame 231 is firmly arranged beside the self-cleaning drum screen 1, providing a stable support base for the linear driver 232. The linear driver 232 is connected to the second elastic mounting frame 233 as a power source, and is responsible for driving the second elastic mounting frame 233 to perform linear reciprocating motion. The second elastic mounting frame 233 has a certain elasticity, and a plurality of push-out columns 234 are arranged on the second elastic mounting frame 233, and the push-out columns 234 correspond one-to-one to the positioning through holes 2121 on the docking frame 212.

[0064] Under normal working conditions, the mixing frame 21 is fixedly connected with the telescopic positioning column 13 on the self-cleaning drum screen 1 through the positioning through hole 2121 on the docking frame 212, ensuring that the mixing frame 21 can stably rotate with the rotation of the drum screen. At this time, the positioning and disengaging device 23 is in a standby state, the linear drive 232 is not started, and the second elastic mounting frame 233 and the push column 234 thereon are not in contact with the docking frame 212.

[0065] When the mixing and stirring frame 21 needs to be unlocked, the linear drive 232 starts and pushes the second elastic mounting frame 233 to move toward the docking frame 212. As the second elastic mounting frame 233 approaches, the push-out column 234 gradually conflicts with one side of the docking frame 212. Since the second elastic mounting frame 233 has an elastic pushing effect, when the positioning through hole 2121 on the docking frame 212 rotates to the position of the push-out column 234, the push-out column 234 is inserted into the positioning through hole 2121 under the action of the elastic force. At this time, the thrust of the push-out column 234 acts on the telescopic positioning column 13, squeezing the telescopic positioning column 13 out of the positioning through hole 2121, thereby unlocking the mixing and stirring frame 21. After unlocking, the connection between the mixing and stirring frame 21 and the self-cleaning drum screen 1 is suspended, and the push-out scraping mechanism 22 can be started to clean the inner wall of the drum screen.

[0066] After the cleaning is completed, it is necessary to restore the connection between the mixing and stirring frame 21 and the self-cleaning drum screen 1. At this time, the linear drive 232 starts in the reverse direction, driving the second elastic mounting frame 233 to reset. As the second elastic mounting frame 233 moves away, the push-out column 234 withdraws from the positioning through-hole 2121. Subsequently, the self-cleaning drum screen 1 continues to rotate, and the telescopic positioning column 13 gradually approaches and re-engages the positioning through-hole 2121 as it rotates. At this point, the connection between the mixing and stirring frame 21 and the self-cleaning drum screen 1 is restored, ready for the next mixing and screening work.

[0067] See also Figure 6 and Fig.10As shown, the movable end of the positioning and disengagement device 23 is also equipped with a linkage control device, which includes a transmission joint 235 installed on the adjusting screw 2222. The linkage control device also includes a rotation driver 237 installed on the movable end of the positioning and disengagement device 23. The output end of the rotation driver 237 is equipped with a docking joint 236, which is coaxially arranged with the transmission joint 235.

[0068] When the positioning and disengaging device 23 executes the action, driving the mixing and stirring frame 21 to disengage from the connection with the self-cleaning drum screen 1, during this process, the docking joint 236 and the transmission joint 235 gradually approach and finally fit each other to form a tight rotation transmission path.

[0069] At this time, the rotary driver 237 starts and drives the docking joint 236 to rotate. Since the docking joint 236 is coaxial with the transmission joint 235 and fits tightly, the transmission joint 235 will rotate synchronously with the docking joint 236. The rotational motion of the transmission joint 235 is transmitted to the adjusting screw 2222 through the threaded connection, causing the adjusting screw 2222 to rotate.

[0070] See also Figure 1 and Fig.11 As shown, the push flushing assembly 3 includes an arc-shaped watering plate 31 installed above the self-cleaning drum screen 1, and a third elastic mounting frame 33 is installed on the arc-shaped watering plate 31. A number of equally spaced dredging top columns 34 are installed on the third elastic mounting frame 33, and a floating guide wheel 35 is installed on the dredging top column 34.

[0071] When the work starts, the water outlet 32 ​​inside the arc-shaped water sprinkling plate 31 will accurately spray water to the screen holes 11 in a part 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 the role of clearing the screen holes 11 to prevent the slag from clogging the screen holes 11.

[0072] The third elastic mounting frame 33 ensures that the dredging top column 34 can stably extend toward 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 column 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 column 34 can stably insert into the sieve hole 11 when the drum screen rotates. In order to optimize the cleaning effect, a guide groove 111 is designed on each sieve hole 11 of the self-cleaning drum screen 1. The guide groove 111 can guide the moving path of the floating guide wheel 35 when the drum screen rotates, ensuring that the dredging top column 34 can accurately insert into the sieve hole 11. At the same time, the rolling characteristics of the floating guide wheel 35 further reduce the friction with the outer wall of the drum screen, thereby improving the cleaning efficiency and stability.

[0073] By spraying water to clear and physically inserting the clearing top column 34, the top-pushing flushing assembly 3 achieves a double cleaning effect on the sieve hole 11. This combination not only ensures that the sieve hole 11 is unobstructed, but also significantly improves the efficiency and effect of slag treatment.

[0074] Specific working principle: After the slag enters the self-cleaning drum screen 1, the driving device is started to drive the 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 conjunction with the drum screen to stir the slag, thereby realizing the rotational filtering and screening of the slag. In this process, the slag is subjected to mechanical stirring, which helps its classification and crushing.

[0075] At the same time, the push-pushing water assembly 3 sprays cleaning water to the screen holes 11 of the drum screen, which not only helps to flush the slag, but also effectively inhibits the diffusion of dust. In addition, the movable end of the push-pushing water assembly 3 can be inserted into the screen holes 11 to prevent the metal parts in the slag from being stuck in the screen holes 11, thereby keeping the screen holes 11 unobstructed.

[0076] However, during the slag treatment process, a stubborn slag ash layer may adhere to the inner wall of the drum screen, and long-term accumulation will affect the fluidity of the slag screening. When it is necessary to clean the attached slag ash layer, the positioning and disengaging device 23 is used to control the mixing and stirring frame 21 to suspend the positioning connection with the drum screen, and then the push-pushing and scraping mechanism 22 is started. The cleaning end of the push-pushing and scraping mechanism 22 conflicts with the inside of the drum screen. At this time, the drum screen continues to rotate, causing friction between the inner wall and the cleaning end of the push-pushing and scraping mechanism 22, thereby effectively scraping and cleaning the slag ash layer on the inner wall of the drum screen.

[0077] In this process, the coordinated work of the self-cleaning stirring component 2 and the top-pushing flushing component 3 realizes non-stop cleaning, which significantly improves the effect and efficiency of graded screening.

[0078] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached 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), and a push-pushing water assembly (3) is installed on the outer wall of the self-cleaning drum screen (1), and the push-pushing water assembly (3) is used to flush the sieve holes (11) of the self-cleaning drum screen (1). The self-cleaning stirring assembly (2) comprises a mixing stirring frame (21) detachably connected to the self-cleaning drum screen (1), and the mixing stirring frame (21) is used to cooperate with the self-cleaning drum screen (1) to stir the slag. A push-pushing scraping mechanism (22) is also installed on the mixing stirring frame (21), and the push-pushing scraping mechanism (22) 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), and the positioning and disengaging device (23) is used to adjust the connection state of the mixing and stirring frame (21).

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 sieve holes (11), each sieve hole (11) is provided with a guide groove (111), one end of the self-cleaning drum screen (1) is provided with a limit mounting ring (12) connected to the mixing and stirring frame (21), and a plurality of telescopic positioning columns (13) are installed on the limit mounting ring (12).

3. The grading crushing and cleaning device for slag treatment according to claim 2, 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) extending toward the inner wall of the self-cleaning drum screen (1), the stirring blades (211) being used to stir the slag, a docking frame (212) being installed on the side of the mixing and stirring frame (21), a plurality of positioning through holes (2121) being installed on the docking frame (212), the positioning through holes (2121) corresponding one-to-one to the telescopic positioning columns (13).

4. The grading crushing and cleaning device for slag treatment according to claim 1, characterized in that: The push-scraping mechanism (22) comprises a plurality of groups of linkage guide mechanisms (221) and linkage pushing mechanisms (222) mounted on the mixing and stirring frame (21); the linkage pushing mechanisms (222) are used to control the telescopic movement of the movable end of the linkage guide mechanism (221); and a cleaning scraper (223) is mounted on the movable end of the linkage guide mechanism (221).

5. The grading crushing and cleaning device for slag treatment according to claim 4, characterized in that: The linkage guide mechanism (221) comprises a plurality of guide slide blocks (2211) slidably mounted on the mixing and stirring frame (21); a V-shaped bracket (2212) is slidably mounted on the guide slide blocks (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).

6. 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).

7. 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 linkage guide mechanism (221); a scraper head (2232) is also mounted on the connecting blade seat (2231); and a material through-hole (2233) is mounted between the connecting blade seat (2231) and the scraper head (2232).

8. The grading crushing and cleaning device for slag treatment according to claim 3, 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).

9. The grading crushing and cleaning device for slag treatment according to claim 6, characterized in that: The movable end of the positioning and disengaging device (23) is also equipped with a linkage control device, the linkage control device comprising a transmission joint (235) mounted on the adjusting screw rod (2222), the linkage control device also comprising a rotation driver (237) mounted on the movable end of the positioning and disengaging device (23), the output end of the rotation driver (237) being equipped with a docking joint (236), the docking joint (236) being coaxially arranged with the transmission joint (235).

10. 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); and a floating guide wheel (35) is mounted on the dredging top column (34).

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