Extraction equipment for extracting and recycling heavy metals in electroplating sludge

Abstract

The invention relates to the technical field of extraction equipment, and discloses extraction equipment for extracting and recycling heavy metals in electroplating sludge, which comprises a shell, a base is mounted at the bottom of the shell, a motor is fixedly connected to the top of the shell, a filter barrel is fixedly connected to the inner wall of the shell, and a water outlet pipe is fixedly communicated to the inner wall of the base. The output end of the motor is fixedly connected with a rotating shaft, the circumferential surface of the rotating shaft is fixedly connected with a triangular plate I, the inner wall of the triangular plate I is fixedly connected with a separation plate, and the circumferential surface of the rotating shaft is fixedly connected with a triangular plate II. The problem that the bottom of the filter barrel is accumulated and blocked due to the fact that caking precipitates are easily formed is solved, the extraction time of the device is shortened, water and solid substances in the electroplating sludge can be further separated through the filter barrel, water can be separated out, and the working efficiency of metal extraction is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of extraction equipment, in particular to an extraction equipment for extracting and recovering heavy metals from electroplating sludge. Background Art

[0002] The electroplating industry is widely used in machinery, electronics, aerospace and other fields. During the electroplating process, a large amount of electroplating wastewater containing heavy metals is generated. Usually, the heavy metals in the wastewater are transferred to the sludge by adding precipitants or flocculants.

[0003] The patent with publication number CN211311547U relates to a copper potential extraction device for electroplating sludge, comprising a shell and a heat recovery device, wherein a heater is connected to one side of the shell, and the heat recovery device is located on the other side of the shell, wherein a feed pipe is provided on the top of the heater and the heat recovery device and connected to the shell, and a circulating water pump is connected to the bottom of the heater and the heat recovery device. The copper potential extraction device for electroplating sludge is provided with a heat recovery device, and after the solution is heated, it enters the evaporation chamber and begins to evaporate water vapor, and the water vapor enters the interior of the heat recovery device through the steam pipe, and at the same time the circulating water pump draws the solution into the heat recovery device through the reflux pipe. In the device, the heat of water vapor is transferred to the solution, which is convenient for recovering the heat of secondary steam. A water level gauge is provided. The device can observe the reduction of the solution in the evaporation chamber and the crystallization chamber through the water level gauge. When it is reduced to a certain level, the feed port cover is opened to continue adding solution, which is convenient for observing the solution situation in the evaporation chamber and the crystallization chamber. However, in the extraction of electroplating sludge, the device needs to manually separate the water and the sludge, which wastes the workers' working time and causes the workers' extraction efficiency to deteriorate. Therefore, an extraction equipment for heavy metal extraction and recovery of electroplating sludge is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an extraction device for extracting and recovering heavy metals from electroplating sludge in view of the above-mentioned deficiencies in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an extraction equipment for extracting and recovering heavy metals from electroplating sludge, comprising a shell, a base is installed at the bottom of the shell, a motor is fixedly connected to the top of the shell, the inner wall of the shell is fixedly connected to the filter barrel, the inner wall of the base is fixedly connected to the water outlet pipe, the output end of the motor is fixedly connected to the rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to triangular plate 1, the inner wall of triangular plate 1 is fixedly connected to the separation plate, the circumferential surface of the rotating shaft is fixedly connected to triangular plate 2, the inner wall of triangular plate 2 is fixedly connected to the mud pushing plate, the circumferential surface of the rotating shaft is fixedly connected to the stirring plate, the inner wall of the shell is provided with a heating mechanism for improving separation efficiency, the rear part of the heating mechanism is provided with a vibration mechanism for avoiding blockage, the inner wall of the shell is rotatably connected to the circumferential surface of the rotating shaft, and the circumferential surface of the rotating shaft It is rotatably connected to the inner wall of the filter barrel, and the rotation of the rotating shaft drives the triangular plate to rotate, thereby avoiding the high density of the electroplating sludge, which leads to the formation of lumps and precipitation and causes accumulation and blockage at the bottom of the filter barrel, shortening the extraction time of the device, and can also separate the water and solid matter in the electroplating sludge in advance through the filter barrel, so that the water can be separated, and the working efficiency of metal extraction is improved. At the same time, the electroplating sludge attached to the inner wall of the filter barrel will be pushed off during the rotation of the mud pushing plate, avoiding the electroplating sludge from clogging the holes inside the filter barrel, which will easily cause the solid particles in the sludge to form a dense filter cake on the inner wall of the filter barrel, resulting in a lower leaching rate of the device, and can also avoid the leaching agent outside the filter barrel from being difficult to contact and react with the electroplating sludge inside the filter barrel. The rotation of the rotating shaft drives the stirring plate to rotate, which can promote solid-liquid mixing, make the agent fully contact with the sludge, and improve the reaction efficiency.

[0006] Preferably, the heating mechanism includes a medicine box, which is fixedly connected to the inner wall of the shell, the inner wall of the shell is fixedly connected to a fixed plate, the inner wall of the fixed plate is rotatably connected to a reciprocating screw, the inner wall of the stirring plate is fixedly connected to a ring, the circumferential surface of the reciprocating screw is movably connected to a connecting block, the circumferential surface of the reciprocating screw is fixedly connected to a transmission wheel, the inner wall of the connecting block is fixedly connected to a heating rod, the front part of the medicine box is fixedly connected to a chamfered plate, the inner wall of the chamfered plate is slidably connected to a sliding rod, the circumferential surface of the sliding rod is fixedly connected to a limiting plate, and the inner wall of the sliding rod is fixedly connected to a semicircular The plate, the inner wall of the shell is in contact with the circumferential surface of the transmission wheel, and the top of the ring is in contact with the bottom of the semicircular plate, which can increase the contact area between the heating rod and the reagent, so that the reagent inside the device can be heated evenly, avoiding local overheating or low temperature, so as to improve the reaction rate of the electroplating sludge, and can also quickly heat up at the initial startup and maintain a constant temperature during the reaction stage. At the same time, the frequency of adding the leaching agent to the reagent box can be controlled, thereby saving a certain dose of the reagent, and improving the use effect of the reagent, avoiding adding too much reagent at one time, which makes it difficult to mix the leaching agent evenly.

[0007] The top of the filter press is fixedly connected to the filter press of the filter press, and the bottom of the filter press is fixedly connected to the filter press of the filter press.

[0008] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. The extraction equipment for extracting and recovering heavy metals from electroplating sludge can prevent the high density of electroplating sludge from easily forming agglomerates and sediments, which may cause accumulation and blockage at the bottom of the filter barrel, thereby shortening the extraction time of the device. The filter barrel can also be used to separate water and solid matter in the electroplating sludge in advance, so that water can be separated and the efficiency of metal extraction can be improved. At the same time, the pusher plate can push off the electroplating sludge attached to the inner wall of the filter barrel during rotation, thereby preventing the electroplating sludge from clogging the holes inside the filter barrel, which may easily cause solid particles in the sludge to form a dense filter cake on the inner wall of the filter barrel, resulting in a reduced leaching rate of the device. The leaching agent outside the filter barrel can also be prevented from being difficult to contact and react with the electroplating sludge inside the filter barrel. The rotation of the rotating shaft drives the stirring plate to rotate, thereby promoting solid-liquid mixing, ensuring full contact between the agent and the sludge, and improving the reaction efficiency.

[0009] 2. The extraction equipment for extracting and recovering heavy metals from electroplating sludge can increase the contact area between the heating rod and the reagent through the coordinated operation among the reagent box, fixed plate, reciprocating screw, circular ring, connecting block, transmission wheel, heating rod, chamfered plate, sliding rod, current limiting plate, and semicircular plate, so that the reagent inside the device can be heated evenly to avoid local overheating or low temperature, thereby increasing the reaction rate of the electroplating sludge. It can also quickly heat up at the initial startup and maintain a constant temperature during the reaction stage. At the same time, the frequency of adding the leaching agent to the reagent box can be controlled, thereby saving a certain dose of the reagent and improving the use effect of the reagent, avoiding excessive addition of the reagent at one time, which makes it difficult to mix the leaching agent evenly.

[0010] 3. The extraction equipment for extracting and recovering heavy metals from electroplating sludge, through the coordinated operation of the connecting plate, curved scraper, straight plate, moving rod, convex block, semicircular block, vibration spring, and ring block, can scrape the outer surface of the filter barrel during the heating process, thereby further improving the filtering effect of the filter barrel, avoiding clogging of the outer surface of the filter barrel that affects the normal separation and extraction of electroplating sludge, and can also remove lumps attached to the outer surface of the filter barrel during the solid-liquid separation process. At the same time, the surface of the filter barrel can be vibrated, thereby suppressing the scaling of the filter membrane on the surface of the filter barrel, thereby improving the efficiency and stability of the heavy metal extraction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-section diagram of the filter barrel structure of the present invention; Figure 3 A half-section view of a triangular plate structure according to the present invention; Figure 4 A half-section diagram of the heating mechanism of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center A; Figure 6 For the present invention Figure 4 A magnified view of the structure at point B in the middle; Figure 7 Schematic diagram of the vibration mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C in the middle.

[0012] In the figure: 1. shell; 2. base; 3. motor; 4. filter barrel; 5. water outlet pipe; 6. rotating shaft; 7. triangle plate 1; 8. separation plate; 9. triangle plate 2; 10. mud pusher; 11. stirring plate; 12. heating mechanism; 121. medicine box; 122. fixed plate; 123. reciprocating screw; 124. circular ring; 125. connecting block; 126. transmission wheel; 127. heating rod; 128. chamfered plate; 129. sliding rod; 1210. flow limiting plate; 1211. semicircular plate; 13. vibration mechanism; 131. connecting plate; 132. arc scraper; 133. straight plate; 134. moving rod; 135. protrusion; 136. semicircular block; 137. vibration spring; 138. ring block. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figures 1-8The utility model discloses an extraction device for the extraction and recovery of heavy metals in electroplating sludge, comprising a shell 1, a base 2 is installed at the bottom of the shell 1, a motor 3 is fixedly connected to the top of the shell 1, a filter barrel 4 is fixedly connected to the inner wall of the shell 1, and a water outlet pipe 5 is fixedly connected to the inner wall of the base 2. The output end of the motor 3 is fixedly connected to the rotating shaft 6, and the circumferential surface of the rotating shaft 6 is fixedly connected to the triangular plate 7. When the device is in use, the electroplating sludge enters from the feeding port at the top of the shell 1. When the electroplating sludge is added, the motor 3 is started, and the motor 3 starts to drive the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the triangular plate 7 to rotate, thereby avoiding the high density of the electroplating sludge, which easily forms agglomerates and precipitates, causing the bottom of the filter barrel 4 to accumulate and clog, shortening the extraction time of the device, and being able to separate the water and solid matter in the electroplating sludge in advance through the filter barrel 4, so that the water can be separated, thereby improving the working efficiency of metal extraction, the inner wall of the triangular plate 7 is fixedly connected to the separating plate 8, and the circumferential surface of the rotating shaft 6 is fixedly connected to the triangular plate 29, the inner wall of the triangular plate 29 is fixedly connected with a mud pusher 10, the circumferential surface of the rotating shaft 6 is fixedly connected with a stirring plate 11, the inner wall of the shell 1 is provided with a heating mechanism 12 for improving the separation efficiency, and the rear part of the heating mechanism 12 is provided with a vibration mechanism 13 for avoiding clogging. The inner wall of the shell 1 is rotatably connected to the circumferential surface of the rotating shaft 6, and the circumferential surface of the rotating shaft 6 is rotatably connected to the inner wall of the filter barrel 4. At the same time, the rotating shaft 6 rotates to drive the triangular plate 29 to rotate, and the triangular plate 29 rotates to drive the mud pusher 10 to rotate, thereby During the rotation of the mud pushing plate 10, the electroplating sludge attached to the inner wall of the filter barrel 4 will be pushed off, preventing the electroplating sludge from clogging the holes inside the filter barrel 4, which will easily cause the solid particles in the sludge to form a dense filter cake on the inner wall of the filter barrel 4, resulting in a decrease in the leaching rate of the device. It can also prevent the leaching agent outside the filter barrel 4 from being difficult to contact and react with the electroplating sludge inside the filter barrel 4. The rotation of the rotating shaft 6 drives the stirring plate 11 to rotate, which can promote solid-liquid mixing, make the agent fully contact with the sludge, and improve the reaction efficiency.

[0015] The heating mechanism 12 includes a medicine box 121, which is fixedly connected to the inner wall of the shell 1, and a fixed plate 122 is fixedly connected to the inner wall of the shell 1. The inner wall of the fixed plate 122 is rotatably connected to a reciprocating screw rod 123. The inner wall of the stirring plate 11 is fixedly connected to a ring 124, and the circumferential surface of the reciprocating screw rod 123 is movably connected to a connecting block 125. The circumferential surface of the reciprocating screw rod 123 is fixedly connected to a transmission wheel 126. The inner wall of the connecting block 125 is fixedly connected to a heating rod 127. In the process of mixing the medicine, the stirring plate 11 rotates to drive the ring 124 to rotate. The rotation of the ring 124 will contact the transmission wheel 126, and the friction between the transmission wheel 126 and the ring 124 will cause the transmission wheel 126 to rotate. The rotation of the transmission wheel 126 drives the reciprocating screw rod 123 to rotate. The rotation of the reciprocating screw rod 123 will contact the threads on the surface of the reciprocating screw rod 123 through the slider inside the connecting block 125 and through the extrusion force, the connecting block 125 can move. The movement of the connecting block 125 drives the heating rod 127 to move up and down, thereby increasing the contact area between the heating rod 127 and the medicine, so that the medicine inside the device can be evenly distributed. Heating is performed to avoid local overheating or low temperature, so that the reaction rate of the electroplating sludge can be improved, and the temperature can be quickly raised during the initial startup and a constant temperature can be maintained during the reaction stage. The front part of the reagent box 121 is fixedly connected with a chamfered plate 128, and the inner wall of the chamfered plate 128 is slidably connected with a sliding rod 129. The circumferential surface of the sliding rod 129 is fixedly connected with the limiting plate 1210, and the inner wall of the sliding rod 129 is fixedly connected with a semicircular plate 1211. The inner wall of the shell 1 is in contact with the circumferential surface of the transmission wheel 126, and the top of the ring 124 is in contact with the bottom of the semicircular plate 1211. The semicircular plate 1211 is in contact with the bottom of the semicircular plate 1211, and produces an extruding force on the semicircular plate 1211 so that the semicircular plate 1211 moves upward. The upward movement of the semicircular plate 1211 drives the sliding rod 129 to move upward. The upward movement of the sliding rod 129 drives the limiting plate 1210 to move upward, thereby controlling the frequency of adding the extractant to the medicine box 121, thereby saving a certain dose of medicine, improving the use effect of the medicine, and avoiding adding too much medicine at one time, which makes it difficult to mix the extractant evenly.

[0016] Working principle: When the device is in use, the electroplating sludge enters from the feed port on the top of the shell 1. When the electroplating sludge is added, the motor 3 starts, and the motor 3 starts to drive the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the triangular plate 1 7 to rotate, thereby avoiding the high density of the electroplating sludge, which easily forms agglomerates and precipitates, causing accumulation and blockage at the bottom of the filter barrel 4, shortening the extraction time of the device, and can also separate the water and solid matter in the electroplating sludge in advance through the filter barrel 4, so that the water can be separated, thereby improving the efficiency of metal extraction. At the same time, the rotating shaft 6 rotates to drive the triangular plate 2 9 to enter The rotation of the triangular plate 2 9 drives the mud pushing plate 10 to rotate, so that the electroplating sludge attached to the inner wall of the filter barrel 4 will be pushed down during the rotation of the mud pushing plate 10, so as to prevent the electroplating sludge from clogging the holes inside the filter barrel 4, which will easily cause the solid particles in the sludge to form a dense filter cake on the inner wall of the filter barrel 4, resulting in a decrease in the leaching rate of the device, and it can also prevent the leaching agent outside the filter barrel 4 from being difficult to contact and react with the electroplating sludge inside the filter barrel 4. The rotation of the rotating shaft 6 drives the stirring plate 11 to rotate, which can promote solid-liquid mixing, make the agent fully contact with the sludge, and improve the reaction efficiency.

[0017] During the mixing process of the medicine, the stirring plate 11 rotates and drives the ring 124 to rotate. The rotation of the ring 124 will contact with the transmission wheel 126, and the friction force generated between the transmission wheel 126 and the ring 124 will cause the transmission wheel 126 to rotate. The rotation of the transmission wheel 126 drives the reciprocating screw rod 123 to rotate. The rotation of the reciprocating screw rod 123 will contact with the thread on the surface of the reciprocating screw rod 123 through the slider inside the connecting block 125, and through the extrusion force, the connecting block 125 can move. The movement of the connecting block 125 drives the heating rod 127 to move up and down, thereby increasing the contact area between the heating rod 127 and the medicine, so that the medicine inside the device can be evenly heated to avoid local over-temperature. Hot or low, so that the reaction rate of electroplating sludge can be improved, and it can also quickly heat up at the initial startup and maintain a constant temperature during the reaction stage. At the same time, during the rotation of the ring 124, the protrusion of the ring 124 will contact the bottom of the semicircular plate 1211, and will produce an extrusion force on the semicircular plate 1211 to move the semicircular plate 1211 upward. The upward movement of the semicircular plate 1211 drives the sliding rod 129 to move upward, and the upward movement of the sliding rod 129 drives the limiting plate 1210 to move upward, thereby controlling the frequency of adding the leaching agent to the chemical box 121, thereby saving a certain dose of chemical, and improving the use effect of the chemical, avoiding excessive addition of chemical at one time, which makes it difficult to mix the leaching agent evenly.

[0018] See also Figures 1-8The top of the connecting plate 131 is fixedly connected to the straight plate 133, and the inner wall of the straight plate 133 is slidably connected to the moving rod 134. The circumferential surface of the filter barrel 4 is fixedly connected to the convex surface 135, and the inner wall of the moving rod 134 is fixedly connected to the moving rod 134. The circumferential surface of the filter barrel 4 is fixedly connected to the convex surface 135, and the inner wall of the moving rod 134 is fixedly connected to the convex surface 135. 136, the circumferential surface of the moving rod 134 is sleeved with a vibration spring 137, the circumferential surface of the moving rod 134 is fixedly connected with a ring block 138, the front part of the straight plate 133 is fixedly connected to the rear part of the vibration spring 137, and the rear part of the ring block 138 is fixedly connected to the front part of the vibration spring 137. At the same time, the upward movement of the connecting plate 131 drives the straight plate 133 to move upward, the upward movement of the straight plate 133 drives the moving rod 134 to move upward, and the upward movement of the moving rod 134 drives the semicircular block 136 to move upward, and the moving rod 133 moves upward. 4 moves upward, driving the vibration spring 137 to move upward. During the upward movement of the semicircular block 136, it will first contact the filter barrel 4, and then continue to move to contact the protrusion 135 and generate an extrusion force on the semicircular block 136. After the semicircular block 136 passes over the protrusion 135, the semicircular block 136 will return to its original position and move forward through the vibration spring 137, thereby generating vibration on the surface of the filter barrel 4, thereby suppressing the scaling of the filter membrane on the surface of the filter barrel 4, so as to improve the efficiency and stability of the heavy metal extraction process.

[0019] Working principle: During the heating process, the connecting block 125 moves upward, driving the connecting plate 131 to move upward, and the connecting plate 131 moves upward, driving the arc scraper 132 to move. During the upward movement of the arc scraper 132, it will contact the surface of the filter barrel 4, thereby scraping the outer surface of the filter barrel 4, so as to further improve the filtering effect of the filter barrel 4, avoid the clogging of the outer surface of the filter barrel 4 affecting the normal separation and extraction of the electroplating sludge, and can also remove the lumps attached to the outer surface of the filter barrel 4 during the solid-liquid separation process. At the same time, the connecting plate 131 moves upward, driving the straight plate 133 to move upward, and the straight plate 133 The upward movement drives the moving rod 134 to move upward, and the upward movement of the moving rod 134 drives the semicircular block 136 to move upward. The upward movement of the moving rod 134 drives the vibration spring 137 to move upward. During the upward movement of the semicircular block 136, it will first contact the filter barrel 4, and then continue to move to contact the protrusion 135 and generate an extrusion force on the semicircular block 136. After the semicircular block 136 passes the protrusion 135, the semicircular block 136 will be reset and moved forward by the vibration spring 137, and then it can vibrate the surface of the filter barrel 4, thereby suppressing the scaling of the surface filter membrane of the filter barrel 4, so that the efficiency and stability of the heavy metal extraction process can be improved.

[0020] The present invention provides an extraction device for heavy metal extraction and recovery from electroplating sludge. There are numerous methods and approaches for implementing this technical solution. The foregoing description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. An extraction device for extracting and recovering heavy metals from electroplating sludge, comprising a housing, characterized in that: A base is installed at the bottom of the shell, the top of the shell is fixedly connected to a motor, the inner wall of the shell is fixedly connected to a filter barrel, the inner wall of the base is fixedly connected to a water outlet pipe, the output end of the motor is fixedly connected to a rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to triangular plate 1, the inner wall of triangular plate 1 is fixedly connected to a separation plate, the circumferential surface of the rotating shaft is fixedly connected to triangular plate 2, the inner wall of triangular plate 2 is fixedly connected to a mud pusher plate, the circumferential surface of the rotating shaft is fixedly connected to a stirring plate, the inner wall of the shell is provided with a heating mechanism for improving separation efficiency, and the rear part of the heating mechanism is provided with a vibration mechanism for avoiding blockage.

2. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 1, characterized in that: The inner wall of the shell is rotatably connected to the circumferential surface of the rotating shaft, and the circumferential surface of the rotating shaft is rotatably connected to the inner wall of the filter barrel.

3. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 2, characterized in that: The heating mechanism includes a medicine box, which is fixedly connected to the inner wall of the shell, the inner wall of the shell is fixedly connected to a fixed plate, the inner wall of the fixed plate is rotatably connected to a reciprocating screw, the inner wall of the stirring plate is fixedly connected to a ring, the circumferential surface of the reciprocating screw is movably connected to a connecting block, and the circumferential surface of the reciprocating screw is fixedly connected to a transmission wheel.

4. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 3, characterized in that: The inner wall of the connecting block is fixedly connected to a heating rod, the front part of the medicine box is fixedly connected to a chamfered plate, the inner wall of the chamfered plate is slidably connected to a sliding rod, the circumferential surface of the sliding rod is fixedly connected to a limiting plate, and the inner wall of the sliding rod is fixedly connected to a semicircular plate.

5. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 4, characterized in that: The inner wall of the shell contacts the circumferential surface of the transmission wheel, and the top of the circular ring contacts the bottom of the semicircular plate.

6. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 5, characterized in that: The vibration mechanism includes a connecting plate, which is fixedly connected to the rear of the connecting block, an arc-shaped scraper is fixedly connected to the inner wall of the connecting plate, a straight plate is fixedly connected to the top of the connecting plate, and a moving rod is slidably connected to the inner wall of the straight plate.

7. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 6, characterized in that: The circumferential surface of the filter barrel is fixedly connected with a protrusion, the inner wall of the moving rod is fixedly connected with a semicircular block, the circumferential surface of the moving rod is sleeved with a vibration spring, and the circumferential surface of the moving rod is fixedly connected with a ring block.

8. The extraction equipment for heavy metal extraction and recovery from electroplating sludge according to claim 7, characterized in that: The front portion of the straight plate is fixedly connected to the rear portion of the vibration spring, and the rear portion of the ring block is fixedly connected to the front portion of the vibration spring.

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