Heavy metal removal device and method for industrial mixed grease

Abstract

The invention discloses a device and a method for removing heavy metals in industrial mixed grease, relates to the technical field of mixed grease treatment, and aims to solve the problems that when the mixed grease is removed, due to the fact that various impurities exist on the surface of the mixed grease, the most common impurities are floating impurities, and after a medicament is added, the impurities influence the removal treatment process of the heavy metals in the grease. According to the heavy metal removal device for the industrial mixed grease, the spring is matched with the inner cylinder, a gap can be formed between the inner cylinder and the blocking block only when the inner cylinder is filled with the grease and the grease begins to overflow, and the grease flows into the tank body through the gap to be removed; meanwhile, floating impurities and overflowing grease are filtered together, the floating impurities are prevented from influencing removal treatment of heavy metal in the grease, meanwhile, a path is provided for passing of the grease through the gap between the blocking block and the conical groove of the inner barrel, and large impurities in the grease can be cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of mixed grease treatment, and in particular to a device and method for removing heavy metals from industrial mixed grease. Background Art

[0002] At present, the mixed oil and grease heavy metal removal device is a device used to remove heavy metal pollutants in mixed oil and grease. There are many working principles of the mixed oil and grease heavy metal removal device. The most common one is the chemical precipitation method, which adds chemical reagents that can form insoluble precipitates with heavy metal ions, such as sulfides, hydroxides, etc., to the mixed oil and grease. These chemical reagents react with heavy metal ions to generate precipitates. After the precipitate is formed, it is separated from the oil and grease by filtering or centrifugation, thereby achieving the removal of heavy metals; When removing mixed grease, there are various impurities on the surface of the mixed grease, the most common of which is floating impurities. After the reagent is added, the impurities will affect the removal process of heavy metals in the grease, resulting in unexpected removal of heavy metals in the grease. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: an industrial mixed grease heavy metal removal device, comprising: A tank body, which provides a place for removing heavy metals from grease, and a tank cover is fixedly installed on the top of the tank body, and a feed pipe is fixedly installed on the top of the tank cover; A primary filter mechanism, which is used to perform preliminary filtering on the grease and remove floating impurities in the grease, and the primary filter mechanism is installed inside the can cover; A dosing mechanism, which is used to provide a path for adding medicine, and is installed at the bottom of the outer side of the tank body; A stirring mechanism, which is used to stir the oil during the dosing process, and the stirring mechanism is installed at the bottom of the tank body, a motor is fixedly installed at the center of the bottom of the stirring mechanism, and a discharge pipe is installed at the bottom of the stirring mechanism; A base, which is used to support the structural assembly and is installed at the bottom of the stirring mechanism; The cam is secured on a central axis of the bottom of the tank cover and is provided with a spring which is fixedly mounted on the top of the tank cover inner wall.

[0004] Preferably, the bottom of the inner cylinder is evenly provided with conical grooves, and a blocking block is fixedly installed on the top of the bottom frame, the blocking block is adapted to the conical groove, the groove frame is inclined inwardly from top to bottom, and a filter ring is fixedly installed on the inner wall of the groove frame, and an annular groove is provided at the bottom of the inner wall of the outer cylinder, and a storage space is provided for floating impurities left after filtering by the filter ring through the annular groove provided at the bottom of the inner side of the outer cylinder, and at the same time, overflowed grease can flow into the tank body through the gap between the frame and the tank cover, and the annular groove is lower than the bottom end of the filter ring, and a flow guide cover is fixedly installed on the top of the inner wall of the top frame, and the bottom end of the flow guide cover is inclined inwardly, and the connecting A magnetic block is fixedly installed at the center position of the top of the receiving plate, and the magnetic block is located directly below the air deflector. A retaining ring is fixedly installed on the top of the connecting plate, and the retaining ring is located on the outside of the magnetic block. An oblique ring groove is opened on the top of the retaining ring. Through the cooperation between the magnetic block and the retaining ring, the magnetism of the magnetic block to metal is utilized to absorb metal debris passing through the grease. At the same time, after the metal debris is adsorbed on the surface of the magnetic block, the grease continues to impact the surface of the magnetic block. When the impact force flushes the debris out of the surface of the magnetic block, the magnetic force of the magnetic block cooperates with the oblique ring groove of the retaining ring to flush the metal debris into the oblique ring groove for collection, thereby preventing the metal debris from mixing with the grease again.

[0005] Preferably, the drug adding mechanism comprises a hollow cylinder, which is fixedly mounted on the bottom of the outer side of the tank body, and the hollow cylinder is evenly mounted along the center position of the tank body, and one end of the hollow cylinder close to the tank body passes through the tank body and extends into the interior thereof, a connecting pipe is mounted on the end of the hollow cylinder away from the tank body, the connecting pipe is annular and connected to the hollow cylinder, and a connecting head is mounted on the outer side of the connecting pipe, a hole disk is fixedly mounted on the center position of the inner wall of the hollow cylinder, holes are evenly arranged on the outer side of the hole disk, and a sliding rod is slidably mounted on the inner wall of the hole disk, a sealing disk is fixedly connected to the end of the sliding rod away from the connecting tube, and a chuck is arranged on the end of the sliding rod close to the connecting tube, and an elastic cover is fixedly mounted between the chuck of the sliding rod and the hole disk, and the elastic cover cooperates with the sealing ring so that before drug adding, the elastic cover is The force cover drives the sealing disk to be close to the sealing ring through the sliding rod, thereby increasing the contact pressure between the sealing disk and the sealing ring and preventing grease from entering the dosing mechanism. At the same time, when adding medicine, when the medicine flows through the inner side of the inner ring, the bulge on the inner side of the inner ring reduces the width of the path, increases the flow rate, and cooperates with the gap opened between the sealing ring and the sealing disk to accelerate the flow rate of the medicine into the tube, so that the medicine can penetrate deeper into the center of the tank body and better cooperate with the stirring mechanism, so that the medicine and the heavy metals in the grease can fully react. The inner ring is fixedly installed on the end of the inner wall of the hollow cylinder away from the connecting tube, the center position of the inner wall of the inner ring bulges inward, and a sealing ring is fixedly installed on the side of the inner ring close to the sealing disk, the outer side of the sealing ring is tightly fitted with the inner wall of the hollow cylinder, and the side of the sealing ring close to the sealing disk is adapted to the sealing disk.

[0006] Preferably, the stirring mechanism includes a chassis, the top of the chassis is fixedly connected to the bottom of the tank body, the motor is fixedly installed at the center position of the bottom of the chassis, the discharge pipe is fixedly installed at the bottom of the chassis and communicated with the tank body, the output end of the motor passes through the chassis and extends to the top thereof, the output end of the motor is connected to a rotating shaft through a coupling, a stirring wheel is evenly installed on the outside of the rotating shaft, a stirring plate is evenly arranged on the outside of the stirring wheel, and an outer retaining ring is fixedly installed on the top of the chassis, the outer retaining ring is located on the outside of the connection position between the discharge pipe and the chassis, and a filter disc is fixedly installed on the top of the inner wall of the outer retaining ring, and the filter disc cooperates with the oil hole at the annular groove of the outer retaining ring to filter the fully reacted grease and remove the flocculent sediment. The precipitated heavy metals are blocked, so that the grease after the heavy metals are removed is discharged from the tank body through the discharge pipe for collection. During the discharge process, the grease on the outside of the outer retaining ring is driven by the suction force to move inward quickly. At this time, the flow path of the grease entering the inner side of the outer retaining ring from the oil hole of the outer retaining ring is changed through the inner retaining ring to avoid the grease surging inward in a straight line, resulting in rapid precipitation and clogging the oil hole. The top of the filter disc is inclined upward from the outside to the inside, and the inner wall of the filter disc is rotatably connected to the outer side of the rotating shaft. The top of the outer side of the outer retaining ring is inclined inward, and the bottom of the outer side of the outer retaining ring is provided with an annular groove, and oil holes are evenly opened at the annular groove. The bottom of the inner wall of the outer retaining ring is fixedly installed with an inner retaining ring, and the top of the inner retaining ring is inclined inward.

[0007] A method for removing heavy metals from industrial mixed grease is composed of the following steps: S1, feed primary filtration, the feed pipe is connected with the grease pipeline, the grease is introduced into the tank through the feed pipe, and during the introduction process, the floating impurities in the grease are filtered through the primary filtration mechanism; S2, adding medicine to form floccules. After the grease enters the tank, the pump is used to pressurize it, the medicine pipeline is connected to the medicine adding mechanism, and the medicine is pumped into the tank to mix with the grease, so that the heavy metals in the grease react to form flocculent precipitates; S3, stirring centrifuge, the motor drives the stirring mechanism to operate, and the grease after the drug addition and flocculent in the tank is stirred, so that the flocculent heavy metals are precipitated during rotation; S4, filter out the oil, stir and centrifuge the heavy metals to settle on the outside of the bottom of the tank, and through the cooperation of the stirring mechanism, block the sediment and let the grease be discharged from the discharge pipe.

[0008] The present invention provides a heavy metal removal device for industrial mixed grease, which has the following beneficial effects: 1. The industrial mixed grease heavy metal removal device cooperates with the inner cylinder through a spring. Only when the grease in the inner cylinder is full and begins to overflow, a gap will appear between the inner cylinder and the block, allowing the grease to flow into the tank through the gap for removal. At the same time, the floating impurities are filtered together with the overflowing grease to prevent the floating impurities from affecting the removal of heavy metals in the grease. At the same time, the gap between the block and the conical groove of the inner cylinder provides a path for the passage of grease, which can clean up large impurities in the grease.

[0009] 2. The heavy metal removal device for industrial mixed grease, through the cooperation of the magnetic block and the retaining ring, utilizes the magnetism of the magnetic block to metal to absorb the metal debris passing through the grease. At the same time, after the metal debris is adsorbed on the surface of the magnetic block, the grease continues to impact the surface of the magnetic block. When the impact force flushes the debris out of the surface of the magnetic block, the magnetic force of the magnetic block cooperates with the oblique ring groove of the retaining ring to flush the metal debris into the oblique ring groove for collection, thereby preventing the metal debris from mixing with the grease again.

[0010] 3. The heavy metal removal device for industrial mixed grease is coordinated with the sealing ring through the elastic cover. Before adding medicine, the elastic cover drives the sealing disk to be close to the sealing ring through the sliding rod, thereby increasing the contact pressure between the sealing disk and the sealing ring to prevent grease from entering the dosing mechanism. At the same time, when adding medicine, when it flows through the inner side of the inner ring, the bulge on the inner side of the inner ring reduces the width of the path, increases the flow rate, and cooperates with the gap opened between the sealing ring and the sealing disk to accelerate the flow rate of the agent entering the tube, so that the agent can penetrate deeper into the center of the tank body and better cooperate with the stirring mechanism, so that the agent and the heavy metals in the grease can fully react.

[0011] 4. The industrial mixed grease heavy metal removal device cooperates with the oil hole at the annular groove of the filter disc and the outer retaining ring to filter the fully reacted grease and block the heavy metals that have flocculently precipitated, so that the grease after heavy metal removal is discharged from the tank body through the discharge pipe for collection. During the discharge process, the grease on the outside of the outer retaining ring is driven by the suction force to move inward rapidly. At this time, the flow path of the grease entering the inner side of the outer retaining ring from the oil hole of the outer retaining ring is changed through the inner retaining ring to prevent the grease from surging inward in a straight line, resulting in rapid precipitation and clogging of the oil hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the external structure of a heavy metal removal device for industrial mixed grease according to the present invention; Figure 2 This is a partial structural dissection diagram of a heavy metal removal device for industrial mixed grease according to the present invention; Figure 3 This is a dissected diagram of the position structure of the tank cover and the primary filtering mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the primary filtration mechanism of the present invention; Figure 5 This is a partial structural anatomical diagram of the primary filtration mechanism of the present invention; Figure 6 This is a schematic diagram of the dosing mechanism and tank position structure of the present invention; Figure 7 This is a schematic diagram of the structure of the dosing mechanism of the present invention; Figure 8 It is a partial structural anatomical diagram of the dosing mechanism of the present invention; Fig. 9 This is a schematic diagram of the stirring mechanism structure of the present invention; Fig.10 It is a schematic diagram of the structure of the stirring mechanism of the present invention; Fig.11 Schematic diagram of the removal method of the present invention.

[0013] In the figure: 1. tank body; 2. primary filtration mechanism; 3. dosing mechanism; 4. stirring mechanism; 5. feed pipe; 6. tank cover; 7. motor; 8. base; 9. discharge pipe; 201. top frame; 202. guide cover; 203. bottom frame; 204. slot frame; 205. inner cylinder; 206. filter ring; 207. outer cylinder; 208. connecting plate; 209. magnetic block; 210. spring; 211. retaining ring; 212. blocking block; 213. slide cylinder; 214. slide column; 31. hollow cylinder; 32. connecting pipe; 33. connector; 34. sealing plate; 35. sealing ring; 36. inner ring; 37. perforated plate; 38. elastic cover; 39. slide rod; 41. bottom plate; 42. stirring wheel; 43. rotating shaft; 44. filter plate; 45. inner retaining ring; 46. outer retaining ring. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0015] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: a heavy metal removal device for industrial mixed grease, comprising: A tank body 1, which provides a place for removing heavy metals from oil and fat, and a tank cover 6 is fixedly installed on the top of the tank body 1, and a feed pipe 5 is fixedly installed on the top of the tank cover 6; A primary filter mechanism 2, which is used to perform preliminary filtering on the grease and remove floating impurities in the grease, and the primary filter mechanism 2 is installed inside the tank cover 6; A dosing mechanism 3, which is used to provide a path for adding medicine, and the dosing mechanism 3 is installed at the bottom of the outer side of the tank body 1; A stirring mechanism 4, which is used to stir the oil during the dosing process, and the stirring mechanism 4 is installed at the bottom of the tank body 1, a motor 7 is fixedly installed at the center of the bottom of the stirring mechanism 4, and a discharge pipe 9 is installed at the bottom of the stirring mechanism 4; A base 8, the base 8 is used to support the structural components, and the base 8 is installed at the bottom of the stirring mechanism 4; The primary filter mechanism 2 includes a bottom frame 203 and a top frame 201. The bottom frame 203 is fixedly mounted on the bottom of the tank cover 6, and the top frame 201 is fixedly mounted on the top of the inner wall of the tank cover 6. A connecting plate 208 is fixedly mounted on the bottom of the top frame 201. A slide cylinder 213 is fixedly mounted at the center of the bottom of the connecting plate 208. A slide column 214 is slidably mounted on the inner wall of the slide cylinder 213. A spring 210 is fixedly mounted on the top of the outer side of the slide column 214. An inner cylinder 205 is fixedly mounted on the bottom of the slide column 214. When the grease fills the inner cylinder 205, the gravity of the grease presses the spring 210 through the slide column 214, causing the spring 210 to deform. The slide column 214 and the inner cylinder 205 are fixedly mounted. 5 moves downward at the same time, so that the positions of the conical groove of the inner cylinder 205 and the blocking block 212 are changed, and a gap appears, so that the grease flows down along the gap and enters the tank body 1. When the grease in the inner cylinder 205 is full, it overflows along the edge of the top of the inner cylinder 205, and the impurities floating on the surface of the grease enter the outer cylinder 207 with the overflowing grease. After entering the outer cylinder 207, it is filtered by the filter ring 206, and the overflowing grease falls into the tank body 1 through the gap between the groove frame 204 and the tank cover 6. The outer cylinder 207 is slidably installed on the outer side of the inner cylinder 205, and the groove frame 204 is fixedly installed on the outer side of the outer cylinder 207. The outer cylinder 207 is fixedly connected to the inner wall of the tank cover 6 through the groove frame 204.

[0016] The bottom of the inner cylinder 205 is evenly provided with conical grooves, and a block 212 is fixedly installed on the top of the bottom frame 203, and the block 212 is adapted to the conical groove. The groove frame 204 is inclined inward from top to bottom, and a filter ring 206 is fixedly installed on the inner wall of the groove frame 204. An annular groove is provided at the bottom of the inner wall of the outer cylinder 207, and the annular groove is lower than the bottom end of the filter ring 206. A guide cover 202 is fixedly installed on the top of the inner wall of the top frame 201, and the bottom end of the guide cover 202 is inclined inward. A magnetic block 209 is fixedly installed at the center position of the top of the connecting plate 208, and grease is introduced from the feed pipe 5, so that The grease enters the air deflector 202 in the top frame 201, and the grease falls from the center position through the diversion of the air deflector 202, impacting the magnetic block 209, so that the metal debris in the grease is adsorbed on the surface of the magnetic block 209 under the magnetic force of the magnetic block 209. At the same time, the grease falls through the top frame 201 and falls into the inner cylinder 205 and accumulates in the inner cylinder 205. The magnetic block 209 is located directly below the air deflector 202. A retaining ring 211 is fixedly installed on the top of the connecting plate 208. The retaining ring 211 is located on the outside of the magnetic block 209, and an oblique ring groove is opened on the top of the retaining ring 211.

[0017] The second embodiment is based on the first embodiment. Figures 6 to 8 As shown, the dosing mechanism 3 includes a hollow cylinder 31, which is fixedly installed at the bottom of the outer side of the tank body 1, and the hollow cylinder 31 is evenly installed along the center position of the tank body 1, and the end of the hollow cylinder 31 close to the tank body 1 passes through the tank body 1 and extends to the inside thereof, and a connecting pipe 32 is installed at the end of the hollow cylinder 31 away from the tank body 1. After the grease enters the tank body 1, the medicine pipeline is connected to the connector 33, and then the medicine is pressurized by a pump and introduced into the connecting pipe 32, so that the medicine passes through the connecting pipe 32 and enters the hollow cylinder 31. The connecting pipe 32 is annular and is connected to the hollow cylinder 31, and a connecting head 33 is installed on the outside of the connecting pipe 32.

[0018] A perforated plate 37 is fixedly installed at the center position of the inner wall of the hollow cylinder 31, and holes are evenly opened on the outer side of the perforated plate 37, and a slide rod 39 is slidably installed on the inner wall of the perforated plate 37, and the end of the slide rod 39 away from the connecting pipe 32 is fixedly connected to the sealing plate 34, and a chuck is provided at the end of the slide rod 39 close to the connecting pipe 32, and an elastic cover 38 is fixedly installed between the chuck of the slide rod 39 and the perforated plate 37, and an inner ring 36 is fixedly installed at the end of the inner wall of the hollow cylinder 31 away from the connecting pipe 32, and the center position of the inner wall of the inner ring 36 protrudes inwardly, and a sealing ring 35 is fixedly installed on the side of the inner ring 36 close to the sealing plate 34. After the medicine enters the hollow cylinder 31, it first passes through the perforated plate 37, so that After passing through the hole of the orifice plate 37, the agent surges toward the sealing plate 34, and impacts the sealing plate 34 after being pressurized, so that the pressure is transmitted to the elastic cover 38 through the slide rod 39, which compresses the elastic cover 38 to deform, so that the slide rod 39 and the sealing plate 34 move toward the center position of the tank body 1 together, and open the gap between the sealing plate 34 and the sealing ring 35. The agent enters the tank body 1 through the gap and reacts with the heavy metals in the grease to form flocculent precipitation. During the reaction, the stirring mechanism 4 stirs the grease to make the agent fully contact with the grease. The outer side of the sealing ring 35 is tightly fitted with the inner wall of the hollow cylinder 31, and the side of the sealing ring 35 close to the sealing plate 34 is adapted to the sealing plate 34.

[0019] The third embodiment is based on the first and second embodiments. Figures 9 to 11 As shown, the stirring mechanism 4 includes a chassis 41, the top of the chassis 41 is fixedly connected to the bottom of the tank body 1, the motor 7 is fixedly installed at the center position of the bottom of the chassis 41, the discharge pipe 9 is fixedly installed at the bottom of the chassis 41 and is connected to the tank body 1, the output end of the motor 7 passes through the chassis 41 and extends to the top thereof, and the motor 7 drives the rotating shaft 43 to rotate, so that the rotating shaft 43 drives the stirring wheel 42 evenly installed on the outside to rotate, so that the stirring plate of the stirring wheel 42 drives the grease to rotate at the center position, so that the grease fully contacts the agent and fully reacts with the agent, and after forming flocculent precipitation, it is driven by the rotating grease and continues to rotate during the precipitation process. Since the mass of the precipitate itself is large, it is concentrated on the outside of the grease, so that the heavy metal precipitate after precipitation is concentrated between the outer retaining ring 46 and the inner wall of the tank body 1, and the output end of the motor 7 is connected to the rotating shaft 43 through a coupling.

[0020] Agitators 42 are evenly installed on the outside of the rotating shaft 43, and agitators are evenly arranged on the outside of the agitator 42. An outer retaining ring 46 is fixedly installed on the top of the chassis 41. The outer retaining ring 46 is located on the outside of the connection position between the discharge pipe 9 and the chassis 41, and a filter disc 44 is fixedly installed on the top of the inner wall of the outer retaining ring 46. The top of the filter disc 44 is inclined upward from the outside to the inside, and the inner wall of the filter disc 44 is rotatably connected to the outside of the rotating shaft 43. The top of the outer side of the outer retaining ring 46 is inclined inwardly, and an annular groove is arranged at the bottom of the outer side of the outer retaining ring 46, and oil holes are evenly opened at the annular groove. When the grease is exported, the flocculent precipitate is filtered through the cooperation of the filter disc 44 and the oil holes of the annular groove of the outer retaining ring 46, so that the grease without heavy metals enters the inner side of the outer retaining ring 46, and is exported to the tank body 1 through the discharge pipe 9 for collection. An inner retaining ring 45 is fixedly installed on the bottom of the inner wall of the outer retaining ring 46, and the top of the inner retaining ring 45 is inclined inwardly.

[0021] A method for removing heavy metals from industrial mixed grease is composed of the following steps: S1, primary filtration of the feed, the feed pipe 5 is connected with the grease pipeline, the grease is introduced into the tank body 1 through the feed pipe 5, and during the introduction process, the floating impurities in the grease are filtered through the primary filtration mechanism 2; S2, adding medicine to form floccules. After the grease enters the tank body 1, the pump is used to pressurize it, the medicine pipeline is connected to the medicine adding mechanism 3, and the medicine is pumped into the tank body 1 to mix with the grease, so that the heavy metals in the grease react to form flocculent precipitates; S3, stirring centrifugation, the motor 7 drives the stirring mechanism 4 to operate, and the grease after the drug addition and flocculent in the tank body 1 is stirred, so that the flocculent heavy metals are precipitated during rotation; S4, filtering out the oil, stirring and centrifuging the heavy metals to precipitate on the outside of the bottom of the tank body 1, and the stirring mechanism 4 cooperates to block the precipitate, so that the grease is discharged from the discharge pipe 9.

[0022] When in use, a worker connects the oil pipe with the feed pipe 5, and introduces the oil into the tank body 1 through the feed pipe 5. During the introduction process, the floating impurities in the mixed grease are filtered and cleaned by the primary filtering mechanism 2. After the primary filtration, the mixed grease enters the tank body 1, and the agent pipeline is connected with the dosing mechanism 3, and the pump is used to pressurize the agent, and the agent is pumped into the tank body 1 to mix the agent with the mixed grease, so that the heavy metals in the mixed grease react with the agent, and floccules and precipitates appear. During the dosing process, the motor 7 drives the stirring mechanism 4 to stir the mixed grease in the tank body 1, so that the floccules and precipitates are precipitated during the rotation. After the mixed grease reacts fully, the mixed grease is stirred by the stirring mechanism 4 and filtered at the same time, so that the grease without heavy metals is discharged from the tank body 1 through the discharge pipe 9.

[0023] When filtering through the primary filter mechanism 2, the grease is introduced through the feed pipe 5, so that the grease enters the guide cover 202 in the top frame 201. Through the flow diversion of the guide cover 202, the grease falls from the center position and impacts the magnetic block 209, so that the metal debris in the grease is adsorbed on the surface of the magnetic block 209 under the magnetic force of the magnetic block 209. At the same time, the grease passes through the top frame 201 and falls into the inner cylinder 205 and accumulates in the inner cylinder 205. When the grease fills the inner cylinder 205, the gravity of the grease compresses the spring 214 through the slide column 214. 0, so that the spring 210 is deformed, the sliding column 214 and the inner cylinder 205 move downward at the same time, so that the position of the conical groove of the inner cylinder 205 and the blocking block 212 is changed, and a gap appears, so that the grease flows down along the gap and enters the tank body 1. When the grease in the inner cylinder 205 is full, it overflows along the edge of the top of the inner cylinder 205, and the impurities floating on the surface of the grease enter the outer cylinder 207 with the overflowing grease. After entering the outer cylinder 207, it is filtered by the filter ring 206, and the overflowing grease falls into the tank body 1 through the gap between the groove frame 204 and the tank cover 6.

[0024] After the grease enters the tank body 1, the agent pipeline is connected to the connector 33, and is introduced into the connecting pipe 32 by a pump under pressure. After the agent passes through the connecting pipe 32, it enters the hollow cylinder 31. After entering the hollow cylinder 31, the agent first passes through the orifice plate 37, so that after passing through the holes of the orifice plate 37, the agent surges toward the sealing plate 34, and impacts the sealing plate 34 after being pressurized, so that the pressure is transmitted to the elastic cover 38 through the slide rod 39, and the elastic cover 38 is pressed to deform, so that the slide rod 39 and the sealing plate 34 move toward the center position of the tank body 1 together, and the gap between the sealing plate 34 and the sealing ring 35 is opened. The agent enters the tank body 1 through the gap and reacts with the heavy metals in the grease to form flocculent precipitation, and cooperates with the stirring mechanism 4 to stir the grease during the reaction to make the agent fully contact with the grease.

[0025] When the stirring mechanism 4 cooperates with the drug addition reaction, the motor 7 drives the rotating shaft 43 to rotate, so that the rotating shaft 43 drives the stirring wheel 42 evenly installed on the outside to rotate, so that the stirring plate of the stirring wheel 42 drives the grease to rotate at the center position, so that the grease fully contacts the medicine and fully reacts with the medicine. After the flocculent precipitation is formed, it is driven by the rotating grease to continue to rotate during the precipitation process. Since the mass of the precipitate itself is large, it is concentrated on the outside of the grease, so that the precipitated heavy metal precipitate is concentrated between the outer retaining ring 46 and the inner wall of the tank body 1, so that there is no precipitated floc in the grease at the center position of the top of the bottom plate 41. When the grease is discharged, the filter plate 44 cooperates with the oil hole of the annular groove of the outer retaining ring 46 to filter the flocculent precipitate, so that the grease without heavy metals enters the inner side of the outer retaining ring 46 and is discharged from the tank body 1 through the discharge pipe 9 for collection.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A heavy metal removal device for industrial mixed grease, It is characterized in that include: A tank body (1), the tank body (1) providing a place for removing heavy metals from oil and fat, and a tank cover (6) is fixedly mounted on the top of the tank body (1), and a feed pipe (5) is fixedly mounted on the top of the tank cover (6); A primary filtering mechanism (2), the primary filtering mechanism (2) being used to perform preliminary filtering on the grease and remove floating impurities in the grease, and the primary filtering mechanism (2) being installed inside the tank cover (6); A medicine adding mechanism (3), the medicine adding mechanism (3) is used to provide a path for adding medicine, and the medicine adding mechanism (3) is installed at the bottom of the outer side of the tank body (1); A stirring mechanism (4), the stirring mechanism (4) is used to stir the oil during the dosing process, and the stirring mechanism (4) is installed at the bottom of the tank body (1), a motor (7) is fixedly installed at the center of the bottom of the stirring mechanism (4), and a discharge pipe (9) is installed at the bottom of the stirring mechanism (4); A base (8), the base (8) being used to support the structural component, and the base (8) being installed at the bottom of the stirring mechanism (4); The primary filtering mechanism (2) comprises a bottom frame (203) and a top frame (201); the bottom frame (203) is fixedly mounted on the bottom of the tank cover (6); the top frame (201) is fixedly mounted on the top of the inner wall of the tank cover (6); a connecting plate (208) is fixedly mounted on the bottom of the top frame (201); a slide cylinder (213) is fixedly mounted at the center of the bottom of the connecting plate (208); a slide column (214) is slidably mounted on the inner wall of the slide cylinder (213); a spring (210) is fixedly mounted on the top of the outer side of the slide column (214); an inner cylinder (205) is fixedly mounted on the bottom of the slide column (214); an outer cylinder (207) is slidably mounted on the outer side of the inner cylinder (205); a groove frame (204) is fixedly mounted on the outer side of the outer cylinder (207); and the outer cylinder (207) is fixedly connected to the inner wall of the tank cover (6) via the groove frame (204).

2. The heavy metal removal device for industrial mixed grease according to claim 1, Features: The bottom of the inner cylinder (205) is evenly provided with conical grooves, and a blocking block (212) is fixedly mounted on the top of the base frame (203), the blocking block (212) being adapted to the conical grooves, the groove frame (204) is inclined inward from top to bottom, and a filter ring (206) is fixedly mounted on the inner wall of the groove frame (204), and an annular groove is provided on the bottom of the inner wall of the outer cylinder (207), and the annular groove is lower than the bottom end of the filter ring (206).

3. The heavy metal removal device for industrial mixed grease according to claim 1, Features: A deflector (202) is fixedly mounted on the top of the inner wall of the top frame (201), the bottom end of the deflector (202) is tilted inward, a magnetic block (209) is fixedly mounted at the center of the top of the connection plate (208), the magnetic block (209) is located directly below the deflector (202), a retaining ring (211) is fixedly mounted on the top of the connection plate (208), the retaining ring (211) is located outside the magnetic block (209), and an oblique annular groove is provided on the top of the retaining ring (211).

4. The heavy metal removal device for industrial mixed grease according to claim 3, Features: The dosing mechanism (3) comprises a hollow cylinder (31), the hollow cylinder (31) being fixedly mounted on the bottom of the outer side of the tank body (1), and the hollow cylinder (31) being evenly mounted along the center of the tank body (1), and the end of the hollow cylinder (31) close to the tank body (1) passes through the tank body (1) and extends into the interior thereof, and a connecting pipe (32) is mounted on the end of the hollow cylinder (31) away from the tank body (1), the connecting pipe (32) being annular and connected to the hollow cylinder (31), and a connector (33) is mounted on the outer side of the connecting pipe (32).

5. The heavy metal removal device for industrial mixed grease according to claim 4, Features: A hole plate (37) is fixedly mounted at the center position of the inner wall of the hollow cylinder (31), holes are evenly opened on the outer side of the hole plate (37), and a slide rod (39) is slidably mounted on the inner wall of the hole plate (37), one end of the slide rod (39) away from the connecting pipe (32) is fixedly connected to a sealing plate (34), and a chuck is provided at one end of the slide rod (39) close to the connecting pipe (32), and an elastic cover (38) is fixedly mounted between the chuck of the slide rod (39) and the hole plate (37).

6. The heavy metal removal device for industrial mixed grease according to claim 5, Features: An inner ring (36) is fixedly mounted on one end of the inner wall of the hollow cylinder (31) away from the connecting pipe (32); the center position of the inner wall of the inner ring (36) protrudes inwards, and a sealing ring (35) is fixedly mounted on a side of the inner ring (36) close to the sealing disk (34); the outer side of the sealing ring (35) is tightly fitted with the inner wall of the hollow cylinder (31), and the side of the sealing ring (35) close to the sealing disk (34) is matched with the sealing disk (34).

7. The heavy metal removal device for industrial mixed grease according to claim 1, Features: The stirring mechanism (4) comprises a chassis (41), the top of the chassis (41) is fixedly connected to the bottom of the tank body (1), the motor (7) is fixedly mounted at the center of the bottom of the chassis (41), the discharge pipe (9) is fixedly mounted at the bottom of the chassis (41) and is connected to the tank body (1), the output end of the motor (7) passes through the chassis (41) and extends to the top thereof, and the output end of the motor (7) is connected to a rotating shaft (43) via a coupling.

8. The heavy metal removal device for industrial mixed grease according to claim 7, Features: A stirring wheel (42) is evenly mounted on the outside of the rotating shaft (43), a stirring plate is evenly arranged on the outside of the stirring wheel (42), and an outer retaining ring (46) is fixedly mounted on the top of the base plate (41), the outer retaining ring (46) is located on the outside of the connection position between the discharge pipe (9) and the base plate (41), and a filter plate (44) is fixedly mounted on the top of the inner wall of the outer retaining ring (46), the top of the filter plate (44) is tilted upward from the outside to the inside, and the inner wall of the filter plate (44) is rotatably connected to the outside of the rotating shaft (43).

9. The heavy metal removal device for industrial mixed grease according to claim 8, Features: The top of the outer side of the outer retaining ring (46) is inclined inwardly, and the bottom of the outer side of the outer retaining ring (46) is provided with an annular groove, and oil holes are evenly opened in the annular groove. The bottom of the inner wall of the outer retaining ring (46) is fixedly mounted with an inner retaining ring (45), and the top of the inner retaining ring (45) is inclined inwardly.

10. A method for removing heavy metals from industrial mixed grease according to any one of claims 1 to 9, Features: It consists of the following steps; S1, initial filtration of the feed, connecting the feed pipe (5) with the grease pipeline, introducing the grease into the tank body (1) through the feed pipe (5), and filtering floating impurities in the grease through the initial filtration mechanism (2) during the introduction process; S2, adding medicine to form floccules, after the grease enters the tank body (1), pressurizing is performed by a pump, the medicine pipeline is connected to the medicine adding mechanism (3), and the medicine is pumped into the tank body (1) to mix with the grease, so that the heavy metals in the grease react to form flocculent precipitates; S3, stirring centrifugation, the motor (7) drives the stirring mechanism (4) to operate, and the grease after the drug addition and flocculent in the tank (1) is stirred, so that the flocculent heavy metals are precipitated during the rotation; S4, filtering out the oil, stirring and centrifuging the heavy metals and precipitating them on the outside of the bottom of the tank body (1). The stirring mechanism (4) cooperates to block the precipitates, so that the oil is discharged from the discharge pipe (9).

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