Tailings separation desulfurization environment-friendly harmless treatment device

Abstract

The application discloses a tailing slag separation desulfurization environment-friendly harmless treatment device, relates to the technical field of slag separation desulfurization treatment devices, and comprises a treatment shell, a supporting frame installed outside the treatment shell, a feeding pipe fixedly and communicatively connected to the treatment shell, a discharging pipe fixedly and communicatively connected to the treatment shell, a screening plate one installed in the treatment shell, a screening plate two installed in the treatment shell, springs arranged between the supporting frame and the treatment shell, the screening plate one used for coarsely screening tailing slag, and the screening plate two used for finely screening the tailing slag. The tailing slag separation desulfurization environment-friendly harmless treatment device further comprises a driving mechanism and a screening mechanism installed in the treatment shell, different particle size materials are uniformly contacted with a screening surface, the screening rate and the classification accuracy are greatly improved, the overall stability of equipment work is ensured, and the overall treatment process is prevented from being interrupted due to shutdown cleaning.

Description

Technical Field

[0001] This invention relates to the technical field of tailings separation and desulfurization treatment devices, specifically to an environmentally friendly and harmless tailings separation and desulfurization treatment device. Background Technology

[0002] Sulfur in tailings slag exists mainly in the form of sulfides such as pyrite. Under natural conditions, it is easily oxidized to produce acid, which leads to the pulverization of building materials. High concentrations of sulfur are released during pyrometallurgical treatment, which not only pollutes the environment and increases treatment costs, but also restricts the resource utilization of tailings.

[0003] Patent publication number CN216170473U includes a separation box, a separation mechanism, and a striking mechanism. The separation box is equipped with a support frame, a right-angle plate is fixedly installed on the top of the separation box, and two sets of water outlet pipes are fixedly installed on the bottom of the separation box. One end of each set of water outlet pipes communicates with the interior of the separation box, and the other end of each set of water outlet pipes is threaded with a threaded cap. This slag tailings treatment device utilizes the principle of centrifugation, achieving high separation efficiency and facilitating feeding and unloading. It is user-friendly, practical, and easy to promote and use. The striking process during separation effectively prevents filter blockage, ensuring efficient separation of wastewater and ore from the tailings, guaranteeing the device's efficiency in tailings treatment, and increasing the device's versatility.

[0004] The aforementioned patent describes a process of striking the filter cartridge during separation. While this effectively prevents filter cartridge blockage and ensures efficient separation of wastewater and ore from tailings, the device also causes tailings slag to accumulate on the screen plate during screening. This results in incomplete separation and reduced screening efficiency. Furthermore, during waste treatment, waste may accumulate at the discharge port, or the waste treatment may be too fast, leading to insufficient residence time of materials and wastewater in the reactor, making it difficult to guarantee desulfurization efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an environmentally friendly and harmless tailings slag separation, desulfurization, and treatment device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tailings slag separation, desulfurization, environmentally friendly, and harmless treatment device, comprising a treatment shell and a support frame installed outside the treatment shell, a feed pipe fixedly connected to the treatment shell, a discharge pipe fixedly connected to the treatment shell, a first screening plate installed inside the treatment shell, a second screening plate installed inside the treatment shell, a spring provided between the support frame and the treatment shell, the first screening plate being used for coarse screening of the tailings slag, the second screening plate being used for fine screening of the tailings slag, and the tailings slag separation, desulfurization, environmentally friendly, and harmless treatment device further comprising a drive mechanism and a screening mechanism installed inside the treatment shell; The drive mechanism includes a servo motor mounted on the support frame, a pulley assembly I mounted on the output end of the servo motor for power transmission, a rotating shaft mounted inside the support frame, a cam mounted on the rotating shaft for traction of raw material screening, and a fixed rod mounted under the processing shell for following traction. The pulley assembly I consists of a pulley I, a belt I, and a pulley II. The pulley II on the pulley assembly I is fixedly installed on the rotating shaft. The cam has a guide groove, and the guide groove of the cam contacts the bottom of the fixed rod to provide power for the processing shell to screen tailings. The screening mechanism includes an upper screening mechanism and at least one lower screening mechanism that is spaced apart from the upper screening mechanism, for performing multiple rounds of screening on the tailings slag inside the processing shell.

[0007] Both the upper and lower screening mechanisms include an explosion-proof motor installed outside the processing housing, a reciprocating screw 1 installed at the output end of the explosion-proof motor, a pulley assembly 2 installed at the end of the reciprocating screw 1 away from the explosion-proof motor, a cleaning plate 1 installed on the reciprocating screw 1 to unclog the first filter layer, a reciprocating screw 2 installed inside the processing housing, and a cleaning plate 2 installed on the reciprocating screw 2 to unclog the second filter layer. The output end of the explosion-proof motor rotates through the outside of the processing housing. The processing housing is in contact with the circumferential surface of the reciprocating screw 1. Both the reciprocating screw 1 and the reciprocating screw 2 are fitted with rubber telescopic tubes. The circumferential surfaces of both the reciprocating screw 1 and the reciprocating screw 2 are formed with reciprocating grooves. The cleaning plate 1 is in contact with the outside of the screening plate 2. The pulley assembly 2 consists of a pulley 3, a belt 2, and a pulley 4. The pulley 4 on the pulley assembly 2 is fixedly installed on the reciprocating screw 2. The cleaning plate 2 is in contact with the outside of the screening plate 1.

[0008] The processing device also includes a waste residue recovery mechanism installed inside the processing shell, used to indirectly discharge the waste residue and wastewater inside the processing shell; The waste residue recycling mechanism includes a separation plate installed inside the processing shell to isolate wastewater and residue, and a hinge rod installed inside the separation plate. A spring is sleeved between the separation plate and the processing shell, and the side of the hinge rod away from the separation plate contacts a guide groove in the cam.

[0009] The screening mechanism also includes an anti-clogging device installed on the reciprocating screw two. The anti-clogging device includes a pulley group three installed on the end of the reciprocating screw two away from the pulley group two, a triangular plate installed on the processing shell, a rotating rod installed inside the triangular plate, a turntable installed outside the rotating rod, a connecting plate installed outside the rotating rod, a long rod installed inside the turntable, and a dredging plate installed outside the long rod to dredge the tailings entering the tailings.

[0010] The third pulley assembly consists of pulley five, belt three, and pulley six. Pulley six on the third pulley assembly is fixedly installed with the rotating rod. The circumferential surface of the rotating rod is in contact with the inside of the feed pipe. The circumferential surface of the turntable is rotatably installed with the inside of the feed pipe. The outside of the long rod is in contact with the inside of the connecting plate.

[0011] The anti-clogging device also includes a gear installed on the side of the long rod away from the connecting plate and a toothed ring installed outside the feed pipe, wherein the gear meshes with the toothed ring.

[0012] The anti-clogging device also includes a desulfurization spraying device installed on the rotating rod. The desulfurization spraying device includes a connecting rod installed on the side of the rotating rod away from the pulley assembly, a connecting rod installed outside the connecting rod, a rotating pipe installed inside the processing shell for conveying desulfurizing agent, a spray head installed outside the rotating pipe for spraying desulfurizing agent onto the screened tailings, and a rotating rod installed outside the rotating pipe. The rotating rod is hinged to the connecting rod, and the connecting rod reciprocates as the connecting rod rotates. The rotating pipe is connected to a desulfurizing agent pipeline through the end away from the rotating rod.

[0013] The desulfurization spraying device also includes a positioning block installed outside the cleaning plate, a striking rod installed inside the positioning block for striking the screen holes, a pressing block installed on the striking rod, and a trapezoidal block installed inside the processing shell. The pressing block is slidably embedded in the positioning block, and the bottom of the trapezoidal block has an inclined surface.

[0014] The top of the pressing block contacts the inclined surface of the trapezoidal block, and a spring is provided between the pressing block and the positioning block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, during the screening of tailings slag, an explosion-proof motor drives reciprocating screw one and reciprocating screw two to rotate via a pulley group two. The reciprocating screw one and reciprocating screw two respectively drive cleaning plate one and cleaning plate two to move back and forth, pushing the accumulated tailings slag flat, allowing materials of different particle sizes to contact the screen surface evenly, greatly improving the screening rate and grading accuracy, ensuring the overall stability of the equipment operation, and avoiding the interruption of the overall processing flow caused by shutdown for cleaning. At the same time, while screening, the cam drives the hinge rod to move back and forth through the internal guide groove. The hinge rod drives the isolation plate to indirectly discharge impurities and waste, preventing tailings slag from accumulating at the discharge port, and also preventing insufficient residence time of materials or wastewater in the reactor, resulting in incomplete desulfurization.

[0016] 2. In this invention, while feeding, the reciprocating screw two drives the pulley group three to rotate, which in turn drives the rotating rod to rotate. The rotating rod drives the turntable to rotate, and the turntable drives the unblocking plate to rotate, thus guiding the incoming tailings slag, reducing the probability of blockage, ensuring smooth material transport, and reducing equipment maintenance and replacement costs. At the same time, while unblocking the tailings slag, the screw also drives the gear to rotate. The gear rotates along the meshing inside the gear ring, which drives the long rod to rotate. The long rod drives the unblocking plate to rotate, breaking up the tailings slag that is stuck together, ensuring the quality of the tailings slag, stabilizing the subsequent screening process, maintaining the continuous operation rhythm of the entire device, and improving the grading accuracy.

[0017] 3. In this invention, during desulfurization treatment, the rotating rod rotates, causing the connecting rod to rotate. The connecting rod pulls the connecting rod to move back to its original position. The connecting rod drives the rotating rod to swing back and forth, which in turn drives the spray head to swing back and forth. This increases the desulfurization area sprayed on the tailings slag, reduces the desulfurization dead zones caused by uneven agent distribution, and ensures that the final residual sulfur rate of the tailings slag meets the standard. At the same time, when cleaning the accumulated tailings slag, the cleaning plate two moves, causing the positioning block to move back and forth. The positioning block drives the striking rod to move back and forth, which in turn drives the pressing block to move back and forth. The pressing block drives the striking rod to strike the screening plate one through the trapezoidal block, thereby clearing the screen hole blockage. No additional machine shutdown is required for cleaning, which improves the stability of tailings slag screening. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positional structure of the processing shell and the screening plate of the present invention; Figure 3 This is a schematic diagram showing the position and structure of the servo motor and pulley assembly of the present invention; Figure 4 This is a schematic diagram showing the position and structure of the pulley assembly and the rotating rod of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of location A in the middle; Figure 6 This is a schematic diagram showing the position and structure of the rotating tube and spray head of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0019] The meanings of the labels in the diagram are as follows: 1. Processing shell; 2. Support frame; 3. Feed pipe; 4. Discharge pipe; 5. Screening plate one; 6. Screening plate two; 7. Rotating shaft; 8. Servo motor; 9. Pulley assembly one; 10. Cam; 11. Fixed rod; 12. Reciprocating screw one; 13. Pulley assembly two; 14. Cleaning plate one; 15. Reciprocating screw two; 16. Cleaning plate two; 17. Explosion-proof motor; 18. Isolation plate; 19. Hinge rod; 20. Anti-clogging device; 201 1. Belt pulley assembly 3; 202. Triangular plate; 203. Rotating rod; 204. Turntable; 205. Connecting plate; 206. Long rod; 207. Unblocking plate; 208. Gear; 209. Gear ring; 21. Desulfurization spraying device; 211. Connecting rod; 212. Connecting rod; 213. Rotating rod; 214. Rotating pipe; 215. Spray head; 216. Positioning block; 217. Striking rod; 218. Pressing block; 219. Trapezoidal block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please see Figures 1-3 One embodiment of the present invention is: a tailings slag separation, desulfurization, environmental protection and harmless treatment device, including a treatment shell 1 and a support frame 2 installed outside the treatment shell 1. A feed pipe 3 is fixedly connected to the treatment shell 1, and a discharge pipe 4 is fixedly connected to the treatment shell 1. A screening plate 5 is installed inside the treatment shell 1, and a screening plate 6 is installed inside the treatment shell 1. A spring is provided between the support frame 2 and the treatment shell 1. The screening plate 5 is used for coarse screening of the tailings slag, and the screening plate 6 is used for fine screening of the tailings slag. The tailings slag separation, desulfurization, environmental protection and harmless treatment device also includes a drive mechanism and a screening mechanism installed inside the treatment shell 1. The drive mechanism includes a servo motor 8 mounted on the support frame 2, a pulley set 9 mounted on the output end of the servo motor 8 for power transmission, a rotating shaft 7 mounted inside the support frame 2, a cam 10 mounted on the rotating shaft 7 for traction of raw material screening, and a fixed rod 11 mounted under the processing shell 1 for following traction. The pulley set 9 consists of a pulley 1, a belt 1, and a pulley 2. The pulley 2 on the pulley set 9 is fixedly mounted to the rotating shaft 7. The cam 10 has a guide groove, and the guide groove of the cam 10 contacts the bottom of the fixed rod 11 to provide power for screening tailings in the processing shell 1. The screening mechanism includes an upper screening mechanism and at least one lower screening mechanism that is spaced apart from the upper screening mechanism, for performing multiple rounds of screening on the tailings slag inside the processing shell 1.

[0022] Both the upper and lower screening mechanisms include an explosion-proof motor 17 installed outside the processing housing 1, a reciprocating lead screw 12 installed at the output end of the explosion-proof motor 17, a pulley assembly 13 installed at the end of the reciprocating lead screw 12 away from the explosion-proof motor 17, a cleaning plate 14 installed on the reciprocating lead screw 12 to unclog the first filter layer, a reciprocating lead screw 15 installed inside the processing housing 1, and a cleaning plate 16 installed on the reciprocating lead screw 15 to unclog the second filter layer. The output of the explosion-proof motor 17... The end rotates through the outside of the processing shell 1, and the processing shell 1 contacts the circumferential surface of the reciprocating screw 12. Both the reciprocating screw 12 and the reciprocating screw 2 15 are fitted with rubber telescopic tubes. The circumferential surfaces of the reciprocating screw 12 and the reciprocating screw 2 15 are opened in reciprocating grooves. The cleaning plate 14 contacts the outside of the screening plate 2 6. The pulley group 2 13 consists of pulley 3, belt 2 and pulley 4. The pulley 4 on the pulley group 2 13 is fixedly installed with the reciprocating screw 2 15. The cleaning plate 2 16 contacts the outside of the screening plate 1 5.

[0023] The treatment device also includes a waste residue recovery mechanism installed inside the treatment shell 1, for indirectly discharging waste residue and wastewater from the treatment shell 1; The waste residue recycling mechanism includes an isolation plate 18 installed inside the processing shell 1 to isolate wastewater and residue, and a hinge rod 19 installed inside the isolation plate 18. A spring is sleeved between the isolation plate 18 and the processing shell 1, and the side of the hinge rod 19 away from the isolation plate 18 contacts the guide groove in the cam 10.

[0024] In addition, screening plate 1 5 and screening plate 2 6 divide the processing shell 1 into screening layer 1 and screening layer 2. The rubber telescopic sleeves fitted on reciprocating screw 1 12 and reciprocating screw 2 15 contract and stretch as cleaning plate 1 14 and cleaning plate 2 16 move. A waste discharge port is provided at the bottom of the processing shell 1.

[0025] In the example, during mining operations, a large amount of tailings is generated. These tailings contain harmful substances. During processing, excess tailings are mechanically poured into the feed pipe 3. The tailings then enter the processing shell 1 through the feed pipe 3. After the pre-treated tailings are poured in, the servo motor 8 is started. The servo motor 8 drives the first pulley of the pulley assembly 9 to rotate via its output end. The rotation of pulley one drives the second pulley to rotate via belt one. The pulley assembly 9 then drives the rotating shaft 7 to rotate via pulley two. The rotation of the rotating shaft 7 drives the cam 10 to rotate synchronously. The cam 10 has a guide opening inside. At this time, the rotation of cam 10 drives the internal guide groove to rotate. Cam 10 pulls the fixed rod 11 to move back and forth with the internal guide groove. The reciprocating movement of the fixed rod 11 drives the processing shell 1 to move. The processing shell 1 will be reset by the spring between it and the support frame 2, thus realizing the reciprocating screening of the tailings slag inside the processing shell 1. The screening of the processing shell 1 drives the tailings slag on the first screening plate 5 and the second screening plate 6 to be screened. At the same time as screening, desulfurizing agent is sprayed. After screening, the discharge pipe 4 is opened to remove the tailings slag of different sizes separately to avoid the fine mud from clogging and wearing the equipment, ensuring the continuous and stable operation of the entire processing device and reducing In addition to the frequency of machine shutdowns for maintenance, to prevent the accumulation of tailings slag during screening of screen plates 5 and 6, the explosion-proof motor 17 must also be started simultaneously. The operation of the explosion-proof motor 17 will drive the reciprocating screw 12 to rotate via its output end. Simultaneously, the rotation of the reciprocating screw 12 will drive the pulley 3 of the pulley group 2 13 to rotate. The pulley 3, through the belt 2, will drive the pulley 4 to rotate. The pulley 4 of the pulley group 2 13 will drive the reciprocating screw 15 to rotate. At this time, the rotation of the pulley group 2 13 and the reciprocating screw 15 will simultaneously drive the reciprocating groove on the circumferential surface to rotate. The reciprocating chute of the reciprocating screw 15 will drive the cleaning plate 14 and the cleaning plate 16 to move back and forth. The reciprocating movement of the cleaning plate 14 will push the tailings slag accumulated on the screening plate 6, and the reciprocating movement of the cleaning plate 16 will push the tailings slag accumulated on the screening plate 5, so that materials of different particle sizes can be evenly contacted on the screen surface, which will greatly improve the screening rate and classification accuracy, ensure that the particle size distribution of the materials entering the subsequent process is stable, and the pushing operation can guide the accumulated materials in real time, destroy the fine mud agglomeration structure, reduce the probability of particles getting stuck, ensure the continuous and stable operation of the screening unit, and avoid the interruption of the overall processing flow due to shutdown for cleaning.

[0026] During the screening process, excess fine mud and wastewater are screened to the bottom of the treatment shell 1 through screening plate 5 and screening plate 6. At this time, excess waste accumulates, and the rotation of cam 10 will drive the inner wall guide groove to rotate. Cam 10 drives hinge rod 19 to reciprocate through the internal guide groove. Hinged rod 19 is hinged to isolation plate 18, thereby causing the isolation plate 18 to compress and open the spring between it and the treatment shell 1, discharging the excess waste inside. Then, the hinge rod 19 is released from the spring between it and the treatment shell 1 to reset. This allows the equipment to indirectly discharge impurities and waste, avoiding a large amount of tailings slag clogging the feed inlet and preventing insufficient residence time of materials or wastewater in the reactor, resulting in incomplete desulfurization and incomplete fusion of heavy metals. This makes the equipment's processing process more stable.

[0027] Furthermore, it should be noted that this application may also include a power supply device and a processor. The power supply device supplies power to the servo motor 8, explosion-proof motor 17, and other functions. Finally, the processor controls the servo motor 8 and explosion-proof motor 17. As an example, the power supply device may be a battery pack or municipal power supply equipment, and the processor may be an existing device. This embodiment will not elaborate further. In this embodiment, the electrical connection of each device adopts a conventional continuous connection method.

[0028] Example 2: Please see Figures 4-5 Based on the above embodiments, in another embodiment of the present invention, the screening mechanism further includes an anti-clogging device 20 installed on the reciprocating screw 15. The anti-clogging device 20 includes a pulley group 201 installed at the end of the reciprocating screw 15 away from the pulley group 13, a triangular plate 202 installed on the processing shell 1, a rotating rod 203 installed inside the triangular plate 202, a turntable 204 installed outside the rotating rod 203, a connecting plate 205 installed outside the rotating rod 203, a long rod 206 installed inside the turntable 204, and a dredging plate 207 installed outside the long rod 206 to dredge the tailings entering the tailings.

[0029] The pulley assembly 3 201 consists of pulley 5, belt 3 and pulley 6. Pulley 6 on pulley assembly 3 201 is fixedly installed with rotating rod 203. The circumferential surface of rotating rod 203 is in contact with the inside of feed pipe 3. The circumferential surface of turntable 204 is rotatably installed with the inside of feed pipe 3. The outside of long rod 206 is in contact with the inside of connecting plate 205.

[0030] The anti-clogging device 20 also includes a gear 208 installed on the side of the long rod 206 away from the connecting plate 205 and a toothed ring 209 installed outside the feed pipe 3, with the gear 208 meshing with the toothed ring 209.

[0031] In addition, the cross-shaped rotating plate of the dredging plate 207 makes it easier to crush the tailings slag.

[0032] In this embodiment, during feeding, tailings slag enters the feed pipe 3. At this time, the reciprocating screw 2 15 drives the pulley 5 of the pulley group 3 201 to rotate. The pulley 5 drives the pulley 6 to rotate through the belt 3. The pulley group 3 201 drives the rotating rod 203 to rotate through the pulley 6. The rotation of the rotating rod 203 drives the connecting plate 205 and the turntable 204 to rotate. The connecting plate 205 and the turntable 204 drive the long rod 206 to rotate synchronously. The long rod 206 drives the unblocking plate 207 to rotate. The rotation of the unblocking plate 207 will guide the entering tailings slag, reduce the production capacity loss and time waste caused by downtime for cleaning, ensure smooth material transportation, reduce the operating load of the conveying pump and the wear rate of the pipeline, and reduce equipment maintenance and replacement costs.

[0033] Simultaneously, while clearing the tailings, the rotating rod 203 drives the turntable 204 to rotate, which in turn drives the long rod 206 to rotate. The long rod 206 then drives the clearing plate 207 to rotate. At this time, the long rod 206 will synchronously drive the gear 208 to rotate. The rotation of the gear 208 will rotate along the meshing teeth inside the gear ring 209, thereby causing the gear 208 to rotate while also rotating on its own axis. The rotation of the gear 208 will drive the long rod 206 to rotate on its own axis, which in turn drives the clearing plate 207 to rotate on its own axis. The clearing plate 207 rotates while clearing the tailings inside the feed pipe 3, thus breaking up the tailings that are stuck together. This ensures that the tailings continuously and stably enter the subsequent screening and desulfurization processes, maintaining the continuous operation rhythm of the entire device and improving the grading accuracy.

[0034] Example 3: Please see Figures 6-7 Based on the above embodiments, in another embodiment of the present invention, the anti-clogging device 20 further includes a desulfurization spraying device 21 installed on the rotating rod 203. The desulfurization spraying device 21 includes a connecting rod 211 installed on the side of the rotating rod 203 away from the pulley group 201, a connecting rod 212 installed outside the connecting rod 211, a rotating pipe 214 installed inside the processing shell 1 for conveying desulfurizing agent, a spray head 215 installed outside the rotating pipe 214 for spraying desulfurizing agent onto the screened tailings, and a rotating rod 213 installed outside the rotating pipe 214. The rotating rod 213 is hinged to the connecting rod 212. The connecting rod 212 reciprocates as the connecting rod 211 rotates. The rotating pipe 214 is connected to a desulfurizing agent pipeline through one end away from the rotating rod 213.

[0035] The desulfurization spraying device 21 also includes a positioning block 216 installed outside the cleaning plate 2 16, a striking rod 217 installed inside the positioning block 216 for striking the screen holes, a pressing block 218 installed on the striking rod 217, and a trapezoidal block 219 installed inside the processing shell 1. The pressing block 218 is slidably embedded in the positioning block 216, and the bottom of the trapezoidal block 219 is provided with an inclined surface.

[0036] The top of the pressing block 218 contacts the inclined surface of the trapezoidal block 219, and a spring is provided between the pressing block 218 and the positioning block 216.

[0037] In addition, the rotating tube 214 and the drug delivery tube are on the same axis, and a striking block is fixedly connected to the bottom of the striking rod 217.

[0038] In this embodiment, during desulfurization, the desulfurizing agent is delivered to the interior of the rotating pipe 214 via a conveying pipe. Then, the desulfurizing agent is delivered to the interior of the spray head 215 via the rotating pipe 214. The spray head 215 is activated and sprays the tailings being screened. At this time, the rotating rod 203 rotates, causing the connecting rod 211 to rotate. The rotation of the connecting rod 211 pulls the connecting rod 212 back to its original position through the hinge point between the connecting rod 211 and the rotating rod 203. The hinge between 13 drives the rotating rod 213 to swing back and forth. The rotating rod 213 drives the rotating tube 214 to rotate back and forth. The rotation of the rotating tube 214 will simultaneously drive the spray head 215 to swing back and forth, thereby increasing the spray desulfurization area of ​​the tailings slag. This allows the desulfurizing agent droplets to evenly cover the surface and gaps of the entire tailings slag layer, ensuring that tailings slag particles at different locations in the layer can fully contact the desulfurizing agent. This significantly reduces the desulfurization dead zones caused by uneven agent distribution, ensuring that the final residual sulfur rate of the tailings slag meets the standard and remains stable.

[0039] When cleaning plate 216 cleans the tailings accumulated on screening plate 15, the movement of cleaning plate 216 causes positioning block 216 to move reciprocally. Positioning block 216 causes striking rod 217 to move reciprocally, and striking rod 217 causes pressing block 218 to move reciprocally. Pressing block 218 moves along the movement trajectory of trapezoidal block 219, so that the top of pressing block 218 contacts the bottom inclined surface of trapezoidal block 219, thereby causing pressing block 218 to compress the spring between it and positioning block 216 and move, thereby causing striking rod 217 to move downward. The striking rod 217 strikes the screening plate 5 through its bottom striking end, thereby knocking down the tailings slag blocking the holes in the screening plate 5. After leaving the trapezoidal block 219, the pressing block 218 is reset by the spring between it and the positioning block 216. The striking rod 217 will also be reset along with the pressing block 218 to facilitate the next strike. This process removes screen hole blockages in real time during screening, eliminating the need for additional shutdowns for cleaning. This significantly reduces equipment failure rate and downtime, ensuring the continuous and stable operation of multi-stage screening units and even the entire device.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tailings slag separation, desulfurization, environmentally friendly, and harmless treatment device, comprising a treatment shell (1) and a support frame (2) installed outside the treatment shell (1), wherein a feed pipe (3) is fixedly connected to the treatment shell (1), a discharge pipe (4) is fixedly connected to the treatment shell (1), a first screening plate (5) is installed inside the treatment shell (1), a second screening plate (6) is installed inside the treatment shell (1), and a spring is provided between the support frame (2) and the treatment shell (1), wherein the first screening plate (5) is used for coarse screening of the tailings slag, and the second screening plate (6) is used for fine screening of the tailings slag, characterized in that, The tailings slag separation, desulfurization, environmental protection and harmless treatment device also includes a drive mechanism and a screening mechanism installed in the treatment shell (1). The drive mechanism includes a servo motor (8) mounted on the support frame (2), a pulley group one (9) mounted on the output end of the servo motor (8) for power transmission, a rotating shaft (7) mounted in the support frame (2), a cam (10) mounted on the rotating shaft (7) for traction of raw material screening, and a fixed rod (11) mounted under the processing shell (1) for following traction. The pulley group one (9) consists of a pulley one, a belt one, and a pulley two. The pulley two on the pulley group one (9) is fixedly installed on the rotating shaft (7). The cam (10) has a guide groove. The guide groove of the cam (10) contacts the bottom of the fixed rod (11) to provide power for the processing shell (1) to screen tailings. The screening mechanism includes an upper screening mechanism and at least one lower screening mechanism that is spaced apart from the upper screening mechanism, for performing multiple rounds of screening on the tailings slag inside the processing shell (1).

2. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 1, characterized in that: Both the upper screening mechanism and the lower screening mechanism include an explosion-proof motor (17) installed outside the processing housing (1), a reciprocating screw (12) installed at the output end of the explosion-proof motor (17), a pulley assembly (13) installed at the end of the reciprocating screw (12) away from the explosion-proof motor (17), a cleaning plate (14) installed on the reciprocating screw (12) to unclog the first filter layer, a reciprocating screw (15) installed inside the processing housing (1), and a cleaning plate (16) installed on the reciprocating screw (15) to unclog the second filter layer. The output of the explosion-proof motor (17) is... The outlet rotates through the outside of the processing shell (1), the processing shell (1) is in contact with the circumferential surface of the reciprocating screw one (12), the reciprocating screw one (12) and the reciprocating screw two (15) are both fitted with rubber telescopic tubes, the circumferential surfaces of the reciprocating screw one (12) and the reciprocating screw two (15) are both opened in the reciprocating sliding groove, the cleaning plate one (14) is in contact with the outside of the screening plate two (6), the pulley group two (13) is composed of pulley three, belt two and pulley four, the pulley four on the pulley group two (13) is fixedly installed with the reciprocating screw two (15), and the cleaning plate two (16) is in contact with the outside of the screening plate one (5).

3. The tailings slag separation, desulfurization, environmentally friendly, and harmless treatment device according to claim 2, characterized in that: The processing device also includes a waste residue recycling mechanism installed inside the processing shell (1) for indirectly discharging the waste residue and wastewater inside the processing shell (1); The waste residue recycling mechanism includes an isolation plate (18) installed inside the processing shell (1) to isolate wastewater and residue, and a hinge rod (19) installed inside the isolation plate (18). A spring is sleeved between the isolation plate (18) and the processing shell (1), and the side of the hinge rod (19) away from the isolation plate (18) contacts the guide groove in the cam (10).

4. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 2, characterized in that: The screening mechanism also includes an anti-clogging device (20) installed on the reciprocating screw two (15). The anti-clogging device (20) includes a pulley group three (201) installed on the end of the reciprocating screw two (15) away from the pulley group two (13), a triangular plate (202) installed on the processing shell (1), a rotating rod (203) installed in the triangular plate (202), a turntable (204) installed outside the rotating rod (203), a connecting plate (205) installed outside the rotating rod (203), a long rod (206) installed in the turntable (204), and a dredging plate (207) installed outside the long rod (206) to dredge the tailings.

5. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 4, characterized in that: The pulley group three (201) consists of pulley five, belt three and pulley six. Pulley six on the pulley group three (201) is fixedly installed with the rotating rod (203). The circumferential surface of the rotating rod (203) is in contact with the inside of the feed pipe (3). The circumferential surface of the turntable (204) is rotatably installed with the inside of the feed pipe (3). The outside of the long rod (206) is in contact with the inside of the connecting plate (205).

6. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 4, characterized in that: The anti-clogging device (20) also includes a gear (208) installed on the side of the long rod (206) away from the connecting plate (205) and a toothed ring (209) installed outside the feed pipe (3), wherein the gear (208) meshes with the toothed ring (209).

7. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 6, characterized in that: The anti-clogging device (20) also includes a desulfurization spraying device (21) installed on the rotating rod (203). The desulfurization spraying device (21) includes a connecting rod (211) installed on the side of the rotating rod (203) away from the pulley group three (201), a connecting rod (212) installed outside the connecting rod (211), a rotating pipe (214) installed inside the processing shell (1) for conveying desulfurizing agent, a spray head (215) installed outside the rotating pipe (214) for spraying desulfurizing agent on the screened tailings, and a rotating rod (213) installed outside the rotating pipe (214). The rotating rod (213) is hinged to the connecting rod (212). The connecting rod (212) moves back and forth as the connecting rod (211) rotates. The rotating pipe (214) is connected to a desulfurizing agent pipeline through one end away from the rotating rod (213).

8. The tailings slag separation, desulfurization, environmentally friendly, and harmless treatment device according to claim 7, characterized in that: The desulfurization spraying device (21) also includes a positioning block (216) installed outside the cleaning plate (16), a striking rod (217) installed inside the positioning block (216) for striking the screen holes, a pressing block (218) installed on the striking rod (217), and a trapezoidal block (219) installed inside the processing shell (1). The pressing block (218) is slidably embedded in the positioning block (216), and the bottom of the trapezoidal block (219) is provided with an inclined surface.

9. The tailings slag separation, desulfurization, environmental protection, and harmless treatment device according to claim 8, characterized in that: The top of the pressing block (218) contacts the inclined surface of the trapezoidal block (219), and a spring is provided between the pressing block (218) and the positioning block (216).

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