Heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy

Abstract

The invention relates to the technical field of heavy metal wastewater treatment devices, in particular to heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy, which comprises a mixing barrel, a layering plate is fixedly mounted in the mixing barrel, a water inlet pipe is arranged below the mixing barrel in a penetrating manner, a water outlet pipe is arranged above the mixing barrel in a penetrating manner, and the upper end of the layering plate is fixedly connected with a central pipe. A chemical feeding device is arranged in the center pipe, a driving face shell is fixedly installed at the bottom end of the layering plate, a driving device is arranged between the driving face shell and the center pipe, and a blade plate is rotationally installed at the inner end of the driving face shell; through the Karman vortex street effect formed by the front end cambered surface and the tail end sharp corner structure of the water-drop-shaped blade plate in the wastewater flowing process, the tail end of the blade plate swings periodically, and the swinging frequency is automatically adjusted along with the change of the water flow speed, so that the medicine applying speed synchronously changes along with the water flow speed.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy metal wastewater treatment devices, and specifically to a heavy metal wastewater treatment equipment for wet metallurgy of molybdenum concentrate. Background Technique

[0002] Wet metallurgy of molybdenum concentrate usually adopts the processes of oxidative roasting - leaching or direct high - pressure oxygen leaching. During the process, a large amount of acidic wastewater containing heavy metals (such as copper, lead, zinc, arsenic, cadmium, etc.) is generated. Such wastewater has the characteristics of high pollutant concentration, complex composition, high toxicity, etc. If not properly treated, it will cause serious harm to the ecological environment and human health.

[0003] After retrieval, it is found that the prior art publication number is CN218689085U, which discloses a new type of high - efficiency heavy metal wastewater treatment equipment, including a treatment tank. An automatic drug - adding mechanism is arranged on the inner side wall of the treatment tank. The automatic drug - adding mechanism includes a mounting frame fixedly arranged on the inner side wall of the treatment tank. A support rod is fixedly arranged at the upper end of the mounting frame. A medicine storage tank is fixedly arranged at the upper end of the support rod. A sliding groove is opened at the upper end of the medicine storage tank. A connecting groove is opened at the inner bottom of the medicine storage tank. A spring is movably arranged inside the connecting groove. A limiting rod is movably arranged inside the spring. This solution uses the elastic action of the spring to push the moving plate upward to move the solid chemical capture agent and makes the hydraulic cylinder drive the push block to move so as to push the solid chemical capture agent to move, achieving the purpose of automatically adding the solid chemical capture agent and improving the heavy metal wastewater treatment efficiency.

[0004] Therefore, based on the above - mentioned retrieval and combined with the existing technology, most of the existing wastewater treatment equipment relies on mechanical stirring or natural diffusion methods to achieve the mixing of wastewater and medicine. The mixing efficiency is low, which easily leads to uneven distribution of the medicine in the wastewater or too high local concentration, thus affecting the flocculation effect and overall treatment stability. At the same time, the existing system's induction and feedback adjustment mechanism for changes in wastewater flow rate is not sensitive enough, and it cannot adjust the drug - feeding rate in real time according to the changes in flow rate and water quality. As a result, when the wastewater flow rate suddenly changes or the composition fluctuates, the treatment system responds laggingly, easily leading to the exceeding of the effluent water quality standard and affecting the up - to - standard discharge of wastewater. For this reason, this application proposes a heavy metal wastewater treatment equipment for wet metallurgy of molybdenum concentrate. Summary of the Invention

[0005] The purpose of the present invention is to provide a heavy metal wastewater treatment equipment for wet metallurgy of molybdenum concentrate to solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A heavy metal wastewater treatment device for wet metallurgy of molybdenum concentrate, including a mixing barrel, wherein a layered plate is fixedly installed inside the mixing barrel, a water inlet pipe penetrates through the lower part of the mixing barrel, a water outlet pipe penetrates through the upper part of the mixing barrel, a screen is detachably installed at the inner end of the mixing barrel, and the screen is used for filtering the flocculated wastewater. The upper end of the layered plate is fixedly connected to a central pipe, and a dosing device is arranged inside the central pipe for dosing into the mixing barrel. The bottom end of the layered plate is fixedly installed with a driving housing, and the driving housing is fixedly connected to the water inlet pipe. The output end of the driving housing is fixedly connected to an output pipe. A driving device is arranged between the driving housing and the central pipe for realizing intermittent dosing. A blade is rotatably installed at the inner end of the driving housing, and the blade swings as the water flow in the water inlet pipe flows. A compression sleeve is fixedly installed at the inner end of the water inlet pipe.

[0007] As a further scheme of the present invention, a dosing box is fixedly installed at the upper end of the mixing barrel, a dosing pipe penetrates through the upper inner side of the mixing barrel, the dosing pipe is located above the central pipe, and the dosing pipe is fixedly connected to the dosing box. A driving motor is fixedly installed at the upper end of the dosing box, and a feeding worm is arranged inside the dosing pipe, and the feeding worm is fixedly connected to the output shaft of the driving motor.

[0008] As a further scheme of the present invention, the driving device includes an isolation sleeve, the isolation sleeve is fixedly installed at the bottom end of the layered plate, the isolation sleeve is located above the driving housing, the rotating shaft of the blade is fixedly connected to a driving shaft, and the end of the driving shaft away from the blade penetrates through the inner end of the isolation sleeve. A driving sleeve is rotatably installed at the inner end of the isolation sleeve, and the driving sleeve is located above the driving shaft.

[0009] As a further scheme of the present invention, a flywheel is rotatably installed at the inner bottom end of the isolation sleeve, the flywheel is located inside the driving sleeve, a plurality of abutting blocks are rotatably installed on the outer surface of the flywheel, the abutting blocks are arranged in a ring shape, and the abutting blocks and the flywheel are connected by elastic pieces. A ratchet ring is fixedly installed at the inner bottom end of the driving sleeve, and the end of the abutting block away from the flywheel engages with the ratchet ring.

[0010] As a further scheme of the present invention, a stabilizing pipe penetrates through the inner end of the central pipe, a driving lead screw penetrates through the inner end of the stabilizing pipe, a movable sleeve is slidably installed at the inner end of the stabilizing pipe, and the movable sleeve is threadedly sleeved on the outer surface of the driving lead screw. By arranging a stabilizing pipe at the inner end of the central pipe and arranging a driving lead screw inside the stabilizing pipe.

[0011] As a further solution of the present invention, a passive block is provided on one side of the stabilizing tube close to the driving sleeve. A passive cover is provided at one end of the passive block close to the stabilizing tube. The passive cover is fixedly sleeved on the outer surface of the driving lead screw. By arranging the passive block and the passive cover in the stabilizing tube, and the passive cover is fixedly sleeved on the outer surface of the driving lead screw, the axial displacement of the driving lead screw can be effectively restricted, and the stability of the operation of the transmission structure can be improved.

[0012] As a further solution of the present invention, a sealing sleeve is rotatably installed at one end of the passive cover close to the stabilizing tube, and the sealing sleeve is fixedly connected to the stabilizing tube through a passive plate. When the driving sleeve rotates, the driving lead screw is driven to rotate through the passive block. By rotatably installing the sealing sleeve on the passive cover and fixedly connecting the sealing sleeve to the stabilizing tube through the passive plate, and cooperating with the rotation of the driving sleeve to drive the passive block, the driving lead screw rotates synchronously, which can realize stable and reliable transmission linkage.

[0013] As a further solution of the present invention, the medicine feeding device includes a medicine storage bladder. The medicine storage bladder is fixedly sleeved on the outer surface of the stabilizing tube. A discharge port is opened on the outer surface of the central tube, and a discharge port is opened on the outer surface of the medicine storage bladder. The discharge port is communicated with the discharge port.

[0014] As a further solution of the present invention, an extrusion ring is sleeved on the outer surface of the stabilizing tube. When the extrusion ring moves upward, the medicine storage bladder is extruded to discharge the medicine inside. By sleeving the extrusion ring on the outer surface of the stabilizing tube, when the extrusion ring moves upward, the medicine storage bladder can be directly extruded, so that the medicine inside is discharged smoothly, realizing accurate and stable medicine feeding control, simplifying the medicine discharging structure, and improving the medicine feeding efficiency and reliability.

[0015] As a further solution of the present invention, two sealing plates are rotatably installed on the outer surface of the central tube. A buffer sleeve is sleeved on the outer surface of the stabilizing tube. When the extrusion ring moves upward, the buffer sleeve is pushed to move upward. A limiting ring is sleeved on the outer surface of the stabilizing tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. When the present invention is used, through the Karman vortex street effect formed by the front arc surface and the rear end sharp angle structure of the water droplet-shaped vane during the flow of wastewater, the rear end of the vane generates periodic swinging, and the swinging frequency is automatically adjusted with the change of the water flow velocity, so that the medicine feeding speed changes synchronously with the water flow velocity; 2. When the present invention is used, the vortex street generated by the self-flow of the wastewater is utilized to drive the vane to swing. No additional power and complex speed regulation devices are required, and the intelligent adaptive adjustment of the medicine feeding rate can be realized without a complex control system. At the same time, the medicine flows out inside the mixing barrel, avoiding the problem of too high or too low local medicine concentration that may occur in the traditional fixed medicine feeding method; 3. When the present invention is in use, by arranging an ultrasonic device inside the mixing barrel, the microbubbles and disturbance effects generated by ultrasonic vibration are utilized to break the interfacial tension between the wastewater and the reagent, promote the full and uniform mixing of the wastewater and the reagent, significantly improve the mixing efficiency, and shorten the reaction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a heavy metal wastewater treatment device for wet metallurgy of molybdenum concentrate; Figure 2 is a schematic structural diagram inside the mixing barrel; Figure 3 is a schematic structural diagram inside the drive housing; Figure 4 is a schematic structural diagram inside the isolation sleeve; Figure 5 is a schematic structural diagram inside the drive sleeve; Figure 6 is a schematic structural diagram inside the central tube; Figure 7 is a schematic structural diagram inside the stabilizing tube; Figure 8 is an exploded view of the positional relationship between the drive sleeve and the stabilizing tube; Figure 9 is an exploded view of the positional relationship between the passive cover and the passive block; Figure 10 is an exploded view of the positional relationship between the medicine storage bladder and the stabilizing tube.

[0018] In the figure: 1, mixing barrel; 2, funnel; 3, water inlet pipe; 4, medicine dosing box; 5, drive motor; 6, water outlet pipe; 101, feeding worm; 102, medicine dosing pipe; 103, sieve mesh; 104, central tube; 105, stratification plate; 106, drive housing; 107, output pipe; 201, blade plate; 202, compression sleeve; 203, drive shaft; 204, isolation plate; 205, drive sleeve; 206, ratchet ring; 207, abutting block; 208, drive block; 209, flywheel; 301, isolation sleeve; 302, passive block; 303, stabilizing tube; 304, sealing sleeve; 305, passive cover; 306, passive plate; 307, drive lead screw; 308, drive gear; 309, passive gear; 310, passive ratchet ring; 401, connecting sleeve; 402, limiting ring; 403, medicine storage bladder; 404, sealing plate; 405, locking buckle; 406, buffer sleeve; 407, pushing ring; 408, mating plate; 409, sealing block; 410, extrusion ring; 411, movable sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Please refer to Figure 1 - Figure 4 , a heavy metal wastewater treatment device for wet metallurgy of molybdenum concentrate, including a mixing barrel 1. A layered plate 105 is fixedly installed inside the mixing barrel 1. A pH on-line monitor is equipped above the layered plate 105. An ultrasonic device is arranged inside the mixing barrel 1 to assist the mixing of wastewater and chemicals through ultrasonic vibration. A water inlet pipe 3 penetrates through the lower part of the mixing barrel 1, and a water outlet pipe 6 penetrates through the upper part of the mixing barrel 1. A screen 103 is detachably installed at the inner end of the mixing barrel 1 for filtering the flocculated wastewater, and the screen 103 is composed of an ultrafiltration membrane and a reverse osmosis membrane (which can be superimposed on this basis). A central pipe 104 is fixedly welded to the upper end of the layered plate 105. A chemical dosing device is arranged inside the central pipe 104 for dosing into the mixing barrel 1. Specifically, an electrocoagulation module (not shown in the figure), which is an anode and a cathode respectively, is arranged between the central pipe 104 and the mixing barrel 1. The inner wall of the mixing barrel 1 is made of a metal material that can conduct electricity and is set as the anode, and a graphene-coated electrode is installed on the outer surface of the central pipe 104 and set as the cathode; As Figure 2 、 Figure 3 shown, a driving housing 106 is fixedly installed at the bottom end of the layered plate 105, and the driving housing 106 is fixedly connected to the water inlet pipe 3. One end of the mixing barrel 1 away from the layered plate 105 is fixedly connected with a funnel 2 by bolts. A sealing cover is arranged at the bottom end of the funnel 2. After the wastewater flocculates and precipitates, it accumulates at the bottom of the funnel 2. When cleaning, the sealing cover can be opened to take out the precipitate. The output end of the driving housing 106 is fixedly welded with an output pipe 107, and the output port of the output pipe 107 is facing the funnel 2. A driving device is arranged between the driving housing 106 and the central pipe 104 for realizing intermittent dosing. A vane 201 is rotatably installed at the inner end of the driving housing 106, and the vane 201 swings with the flow of the water in the water inlet pipe 3. A compression sleeve 202 is fixedly installed at the inner end of the water inlet pipe 3, and the compression sleeve 202 corresponds to the vane 201.

[0021] Specifically, the diameter of the compression sleeve 202 is smaller than the diameter of the water inlet pipe 3. When the wastewater flows from the water inlet pipe 3 into the compression sleeve 202, the flow rate increases due to the diameter reduction. The high-speed flowing wastewater impacts the vane 201. When the wastewater flows past the vane 201, the front arc surface and the tail end sharp angle structure of the droplet-shaped vane 201 cause uneven pressure distribution, generating a periodic vortex (Karman vortex street), triggering periodic swinging at the tail end. The faster the water flow speed, the faster the vane 201 swings.

[0022] As shown Figure 2 in the figure, a medicine adding box 4 is fixedly installed at the upper end of the mixing barrel 1 through bolts. An adding pipe 102 is arranged through the upper inner side of the mixing barrel 1. The adding pipe 102 is located above the central pipe 104, and the adding pipe 102 is fixedly connected with the medicine adding box 4. A driving motor 5 is fixedly installed at the upper end of the medicine adding box 4 through bolts. A feeding worm 101 is arranged through the inner end of the adding pipe 102, and the feeding worm 101 is fixedly connected with the output shaft of the driving motor 5.

[0023] Example 2: Please refer to Figure 2 and Figure 4 - Figure 9 a heavy metal wastewater treatment device for wet metallurgy of molybdenum concentrate. Based on Example 1, the driving device includes an isolation sleeve 301. The isolation sleeve 301 is fixedly installed at the bottom end of the layered plate 105. The isolation sleeve 301 is located above the driving surface shell 106. The rotating shaft of the blade 201 is fixedly connected with a driving shaft 203. And the end of the driving shaft 203 away from the blade 201 is arranged through the inner end of the isolation sleeve 301. An isolation plate 204 is fixedly installed at the bottom inner side of the isolation sleeve 301. The isolation plate 204 is sleeved on the outer surface of the driving shaft 203, and the isolation plate 204 and the driving shaft 203 are connected through a sealing bearing. A driving sleeve 205 is rotatably installed at the inner end of the isolation sleeve 301. The driving sleeve 205 is located above the driving shaft 203; A flywheel 209 is rotatably installed at the bottom inner side of the isolation sleeve 301. The flywheel 209 is located inside the driving sleeve 205. A plurality of abutting blocks 207 are rotatably installed on the outer surface of the flywheel 209. The abutting blocks 207 are arranged in a ring shape. The abutting blocks 207 and the flywheel 209 are connected through elastic pieces. A ratchet ring 206 is fixedly installed at the bottom inner side of the driving sleeve 205. And the end of the abutting block 207 away from the flywheel 209 is engaged with the ratchet ring 206. Specifically, when the flywheel 209 rotates forward, driven by the engagement of the abutting block 207 and the ratchet ring 206, the driving sleeve 205 is driven to rotate. When the flywheel 209 rotates reversely, the abutting block 207 rotates towards the flywheel 209 under the abutting action of the wave crest of the ratchet ring 206, and then returns to the wave trough position of the ratchet ring 206 under the elastic force of the elastic piece; As shown Figure 5 in the figure, a driving block 208 is fixedly welded at the end of the driving shaft 203 close to the flywheel 209. The driving block 208 is arranged through the inside of the flywheel 209. A plurality of convex blocks are fixedly installed on its outer surface. Corresponding grooves are formed at the inner end of the flywheel 209. There is a gap between the cooperation of the convex blocks and the grooves, so that there is a buffer space when the driving shaft 203 drives the driving block 208 to rotate, effectively avoiding the situation of insufficient torque when driving the flywheel 209.

[0024] As shown Figure 6 - Figure 9As shown in the figure, a stabilizing tube 303 is inserted through the inner end of the central tube 104. A rectangular block is fixedly installed on the outer surface of the stabilizing tube 303. A rectangular groove is formed at the inner end of the central tube 104. The rectangular block is inserted into the rectangular groove, so that during the up and down movement of the stabilizing tube 303, the phenomenon of self-rotation is avoided. A driving lead screw 307 is inserted through the inner end of the stabilizing tube 303. A movable sleeve 411 is slidably installed at the inner end of the stabilizing tube 303, and the movable sleeve 411 is threadedly sleeved on the outer surface of the driving lead screw 307. A rectangular hole is formed on the outer surface of the stabilizing tube 303. An extension plate is fixedly installed on the outer surface of the movable sleeve 411. The extension plate is inserted into the interior of the rectangular hole, so that when the driving lead screw 307 rotates, it can drive the movable sleeve 411 to move up and down and avoid self-rotation. When the extension plate on the outer surface of the movable sleeve 411 contacts the upper or lower end position of the rectangular hole, and with the continuous rotation of the driving lead screw 307, the stabilizing tube 303 will be driven to complete the up or down stroke action through the extension plate; A passive block 302 is arranged on one side of the stabilizing tube 303 close to the driving sleeve 205. The passive block 302 is inserted into the interior of the driving sleeve 205. When the driving sleeve 205 rotates, it drives the passive block 302 to rotate. A passive cover 305 is arranged at one end of the passive block 302 close to the stabilizing tube 303. The passive cover 305 is fixedly sleeved on the outer surface of the driving lead screw 307. A sealing sleeve 304 is rotatably installed at one end of the passive cover 305 close to the stabilizing tube 303, and the sealing sleeve 304 is fixedly connected with the stabilizing tube 303 through a passive plate 306. When the driving sleeve 205 rotates, the driving lead screw 307 is driven to rotate through the passive block 302.

[0025] Specifically, a driving gear 308 is fixedly welded to one end of the passive block 302 close to the driving sleeve 205. A stabilizing ring is arranged at the upper end of the passive block 302. A plurality of driven gears 309 are rotatably installed on the outer surface of the stabilizing ring, and the driven gears 309 are all meshed with the driving gear 308. A driven tooth ring 310 is fixedly installed at the inner end of the passive cover 305. After the passive cover 305 moves down, the driven tooth ring 310 forms a meshing transmission with the plurality of driven gears 309. When the passive block 302 rotates, the group of driven gears 309 is driven through the driving gear 308, and finally the driven tooth ring 310 is driven to make the passive cover 305 rotate forward; A rhombic ring is fixedly installed at the bottom end of the driving lead screw 307. The rhombic ring is located below the passive block 302. A rhombic groove adapted to the rhombic ring is formed at the bottom end of the passive block 302. After the driving lead screw 307 moves upward, the rhombic ring is inserted into the rhombic groove. Correspondingly, the driven tooth ring 310 moves upward with the passive cover 305 and is no longer meshed with the driven gears 309.

[0026] Example 3: Please refer to Figure 6 、 Figure 10A heavy metal wastewater treatment equipment for hydrometallurgy of molybdenum concentrate is disclosed. Based on embodiments 1 and 2, the dosing device includes a medicine storage bag 403, which is fixedly sleeved on the outer surface of a stabilizing tube 303. The medicine storage bag 403 is made of soft silicone material, which is anti-aging and has good high temperature resistance. A discharge port is provided on the outer surface of the central tube 104, and a discharge port is provided on the outer surface of the medicine storage bag 403. The discharge port is connected to the discharge port. An extrusion ring 410 is sleeved on the outer surface of the stabilizing tube 303. An extrusion ring 410 is sleeved on the outer surface of the stabilizing tube 303. When the extrusion ring 410 moves upward, the medicine storage bag 403 is squeezed to discharge the internal medicine (such as ferrous sulfate, sodium sulfide, etc.), and the extrusion ring 410 is fixedly connected to a movable sleeve 411.

[0027] Two sealing plates 404 are rotatably mounted on the outer surface of the central tube 104. The sealing plates 404 and the central tube 104 are clamped together by a reset torsion spring. Under the elastic force of the reset torsion spring, the sealing plates 404 seal the discharge port on the outer surface of the central tube 104. A sealing rubber ring is sleeved on the outer surface of the sealing plate 404. When the sealing plate 404 is fitted with the edge of the discharge port, the sealing performance is increased. Two locking buckles 405 are rotatably mounted on the outer surface of the central tube 104. The locking buckles 405 are connected to the central tube 104 through an isolation membrane to prevent water in the mixing barrel 1 from flowing into the central tube 104. The end of the locking buckle 405 away from the central tube 104 is clamped on the outer surface of the sealing plate 404. The bottom end of the locking buckle 405 extends into the interior of the central tube 104. The squeezing ring 410 moves upward to contact the bottom end of the locking buckle 405 and drives the locking buckle 405 to rotate, thereby releasing the lock on the sealing plate 404. When the squeezing ring 410 When it moves downward and contacts the locking buckle 405 again, it drives the locking buckle 405 to rotate in the opposite direction and re-locks the sealing plate 404. It is worth mentioning that the outer surface of the extrusion ring 410 does not fit the inner wall of the center tube 104, so that the locking buckle 405 has a certain movement space when rotating. Specifically, the extrusion ring 410 is made of soft silicone rubber. When the extrusion ring 410 contacts the locking buckle 405, the outer surface of the extrusion ring 410 is slightly deformed due to the interaction of forces, and then the extrusion ring 410 returns to its original state under the action of its own elastic force.

[0028] The outer surface of the stabilizing tube 303 is sleeved with a buffer sleeve 406, and a return spring is inserted into the buffer sleeve 406. When the extrusion ring 410 moves upward, the buffer sleeve 406 is pushed to move upward, and as the extrusion ring 410 continues to move upward, the buffer sleeve 406 is compressed. The outer surface of the stabilizing tube 303 is sleeved with a limit ring 402, and the upper end of the buffer sleeve 406 is fixedly connected to a push ring 407, and the upper end of the push ring 407 contacts the bottom end of the limit ring 402. A limit block is fixedly installed on the outer surface of the stabilizing tube 303, and the limit ring 402 is located above the limit block to prevent the limit ring 402 from falling downward under the action of gravity. A communication sleeve 401 is fixedly connected to the upper end of the central tube 104. A guiding through-hole is provided at the inner end of the communication sleeve 401. Sealing blocks 409 are respectively disposed in the guiding through-holes. Specifically, the upper end of the sealing block 409 is triangular, so that the medicament can smoothly fall into the interior of the medicine storage bladder 403 along the inclined surface of the triangle. And the size of the guiding through-hole is adapted to the size of the sealing block 409. A sealing rubber ring is sleeved on the outer surface of the sealing block 409, which is used to increase the sealing performance after the sealing block 409 blocks the guiding through-hole. And the sealing block 409 and the limiting ring 402 are fixedly connected by a cooperation plate 408. The communication sleeve 401 is fixedly connected to the medicine feeding tube 102.

[0029] As Figure 2 、 Figure 10 shown, a linear sensor capable of detecting the movement state of the movable sleeve 411 is disposed inside the stabilizing tube 303. When the movable sleeve 411 moves to the bottom end of the stabilizing tube 303, the output end of the driving motor 5 drives the feeding worm 101 to rotate, and transfers the medicament inside the medicine feeding box 4 into the interior of the medicine storage bladder 403. After the movable sleeve 411 moves upward, the driving motor 5 stops working. A control terminal is disposed on the outer surface of the mixing barrel 1, which is used to control the components inside the mixing barrel 1 and the starting of the driving motor 5; Specifically, the linear sensor can be a variety of linear sensors including a resistive, inductive, Hall element type or optoelectronic linear displacement sensor, which has been widely used in industrial automation devices for displacement detection and position judgment. The related technical principles and signal conversion processing paths are existing mature technologies and will not be elaborated here.

[0030] The working principle of the present invention is: During operation, the wastewater enters the interior of the driving surface housing 106 through the water inlet pipe 3. When the wastewater flows from the water inlet pipe 3 into the compression sleeve 202, the flow rate increases due to the reduced diameter. The high-speed flowing wastewater impacts the vane 201. When the wastewater flows through the vane 201, it causes the periodic swing of the tail end. During the swinging process of the vane 201, the driving shaft 203 is driven to rotate reciprocally. The driving shaft 203 drives the flywheel 209 to perform a reciprocating rotational motion through the driving block 208. During this process, the abutting block 207 on the outer periphery of the flywheel 209 meshes with the ratchet ring 206, and at this time, the driving sleeve 205 realizes the unidirectional rotational output; The driving sleeve 205 drives the passive block 302 to rotate. At this time, when the passive block 302 rotates, it drives the passive gear 309 group through the driving gear 308, and finally drives the passive gear ring 310 to make the passive cover 305 rotate forward. At this time, the movable sleeve 411 starts to move upward as the driving lead screw 307 rotates. The upward movement of the movable sleeve 411 drives the extrusion ring 410 to move. Subsequently, during the upward movement of the extrusion ring 410, it drives the locking buckle 405 to rotate. At this time, the locking buckle 405 no longer locks the sealing plate 404, and as the extrusion ring 410 continues to move upward, it begins to squeeze the medicine storage bag 403. The space inside the medicine storage bag 403 shrinks, and the medicine inside is pushed out, and then dissolves into the wastewater inside the mixing barrel 1. Subsequently, ultrasonic vibration is used to assist in mixing the wastewater and the medicine. Subsequently, the electrochemical flocculation module responds successively to flocculate the impurities in the wastewater. As the wastewater continues to be injected, the liquid inside the mixing barrel 1 is in a continuous flowing state. At this time, the purified water flows out from the water outlet pipe 6; During the upward movement of the extrusion ring 410, the limiting ring 402 and the mating plate 408 are pushed through the buffer sleeve 406, so that the sealing block 409 blocks the guide through hole inside the communication sleeve 401. As the movable sleeve 411 continues to move upward, when the extension plate on the outer surface of the movable sleeve 411 contacts the upper end of the rectangular hole on the outer surface of the stable tube 303, and as the driving lead screw 307 rotates, the movable sleeve 411 drives the stable tube 303 to move. During the upward movement of the stable tube 303, the passive cover 305 is pulled upward through the passive plate 306. At this time, after the driving lead screw 307 moves upward, the diamond ring is inserted into the diamond groove. Correspondingly, the passive gear ring 310 no longer meshes with the passive gear 309 as the passive cover 305 moves upward. At this time, the driving lead screw 307 starts to reverse and drives the movable sleeve 411 to move downward; As the movable sleeve 411 moves downward, it drives the extrusion ring 410 to move. When passing through the locking buckle 405, it drives the locking buckle 405 to reverse, so that it locks the sealing plate 404 again. When the movable sleeve 411 moves to the bottom end of the stable tube 303, it drives the stable tube 303 to move downward, so that the passive cover 305 moves downward. At this time, the passive gear ring 310 meshes with the passive gear 309 again; Meanwhile, the output end of the driving motor 5 drives the feeding worm 101 to rotate, transfers the medicine in the medicine feeding box 4 into the medicine storage bag 403, and then the driving motor 5 stops working, and then continues to repeat the above operations.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A heavy metal wastewater treatment device for molybdenum concentrate hydrometallurgy, comprising a mixing barrel (1), characterized in that: A stratified plate (105) is fixedly installed inside the mixing barrel (1), a water inlet pipe (3) is passed through the bottom of the mixing barrel (1), a water outlet pipe (6) is passed through the top of the mixing barrel (1), a screen (103) is detachably installed on the inner end of the mixing barrel (1), the screen (103) is used to filter the flocculated wastewater, the upper end of the stratified plate (105) is fixedly connected to the central tube (104), a dosing device is provided inside the central tube (104), and is used to dosing drugs into the mixing barrel (1), the bottom of the stratified plate (105) is fixedly connected to the central tube (104), and the central tube (104) is provided with a dosing device for dosing drugs into the mixing barrel (1), and the bottom of the stratified plate (105) is fixedly connected to the central tube (104). A driving surface shell (106) is fixedly mounted on the end thereof, and the driving surface shell (106) is fixedly connected to the water inlet pipe (3); an output pipe (107) is fixedly connected to the output end of the driving surface shell (106); a driving device is arranged between the driving surface shell (106) and the central tube (104) for realizing intermittent dosing; a blade (201) is rotatably mounted on the inner end of the driving surface shell (106); the blade (201) swings along with the flow of water in the water inlet pipe (3); and a compression sleeve (202) is fixedly mounted on the inner end of the water inlet pipe (3).

2. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 1, characterized in that: A medicine dosing box (4) is fixedly mounted on the upper end of the mixing barrel (1), a medicine dosing tube (102) is passed through the inner upper end of the mixing barrel (1), the medicine dosing tube (102) is located above the central tube (104), and the medicine dosing tube (102) is fixedly connected to the medicine dosing box (4), a driving motor (5) is fixedly mounted on the upper end of the medicine dosing box (4), a feeding worm (101) is passed through the inner end of the medicine dosing tube (102), and the feeding worm (101) is fixedly connected to the output shaft of the driving motor (5).

3. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 1, characterized in that: The driving device comprises an isolation sleeve (301), the isolation sleeve (301) being fixedly mounted on the bottom end of the layered plate (105), the isolation sleeve (301) being located above the driving surface shell (106), the rotating shaft of the blade (201) being fixedly connected to the driving shaft (203), and one end of the driving shaft (203) away from the blade (201) being passed through the inner end of the isolation sleeve (301), the driving sleeve (205) being rotatably mounted on the inner end of the isolation sleeve (301), and the driving sleeve (205) being located above the driving shaft (203).

4. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 3, characterized in that: A flywheel (209) is rotatably mounted on the inner bottom end of the isolation sleeve (301), and the flywheel (209) is located inside the driving sleeve (205). A plurality of abutment blocks (207) are rotatably mounted on the outer surface of the flywheel (209), and the abutment blocks (207) are arranged in a ring shape. The abutment blocks (207) and the flywheel (209) are connected via spring sheets. A ratchet ring (206) is fixedly mounted on the inner bottom end of the driving sleeve (205), and one end of the abutment block (207) away from the flywheel (209) engages with the ratchet ring (206).

5. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 4, characterized in that: A stabilizing tube (303) is passed through the inner end of the central tube (104), a driving screw (307) is passed through the inner end of the stabilizing tube (303), a movable sleeve (411) is slidably mounted on the inner end of the stabilizing tube (303), and the movable sleeve (411) is threadedly sleeved on the outer surface of the driving screw (307).

6. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 5, characterized in that: A passive block (302) is provided on one side of the stabilizing tube (303) close to the driving sleeve (205), a passive cover (305) is provided on one end of the passive block (302) close to the stabilizing tube (303), and the passive cover (305) is fixedly sleeved on the outer surface of the driving screw rod (307).

7. A heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 6, characterized in that: A sealing sleeve (304) is rotatably mounted on one end of the passive cover (305) close to the stabilizing tube (303), and the sealing sleeve (304) and the stabilizing tube (303) are fixedly connected via a passive plate (306). When the driving sleeve (205) rotates, the driving screw (307) is driven to rotate via the passive block (302).

8. The heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 1, characterized in that: The drug administration device comprises a drug storage bag (403), the drug storage bag (403) being fixedly sleeved on the outer surface of the stabilizing tube (303), the outer surface of the central tube (104) being provided with a discharge port, the outer surface of the drug storage bag (403) being provided with a discharge port, and the discharge port being in communication with the discharge port.

9. The heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 8, characterized in that: The outer surface of the stabilizing tube (303) is sleeved with a squeezing ring (410). When the squeezing ring (410) moves upward, it squeezes the medicine storage bag (403) to discharge the medicine inside.

10. The heavy metal wastewater treatment equipment for molybdenum concentrate hydrometallurgy according to claim 9, characterized in that: Two sealing plates (404) are rotatably mounted on the outer surface of the central tube (104); a buffer sleeve (406) is sleeved on the outer surface of the stabilizing tube (303); when the extrusion ring (410) moves upward, it pushes the buffer sleeve (406) to move upward; and a limiting ring (402) is sleeved on the outer surface of the stabilizing tube (303).

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