CN115321658A - Integrated reaction device for recovering nano iron from precious metal - Google Patents

Abstract

The application provides an integrated precious metal recovery nano-iron reaction device, which comprises a reaction mechanism and a nano-iron adding mechanism, wherein the reaction mechanism comprises a reaction cylinder and a stirring component, and the stirring component is connected with the reaction cylinder and used for stirring a mixed material in the reaction cylinder; the nano-iron adding mechanism comprises a storage component and a feeding component, the storage component is connected with the reaction cylinder, the storage component is used for storing nano-iron adding materials, the feeding component is connected with the reaction cylinder, and the feeding component is used for acquiring quantitative nano-iron adding materials from the storage component and feeding the nano-iron adding materials into the reaction cylinder. The device can rationally control the adding time and the adding amount of the nano iron additive, thereby better reacting with the metal water and leading the recovery of the noble metal in the metal water to be more reliable.

Description

Integrated reaction device for recovering nano iron from precious metal

Technical Field

The application relates to the field of environmental protection equipment, in particular to an integrated reaction device for recovering nano iron from precious metals.

Background

The waste water produced in the industries of smelting, electroplating and the like contains a large amount of heavy metals which have great harm to human bodies such as carcinogenesis, teratogenesis and mutagenesis. The nano iron reaction process is a brand-new sewage treatment and resource recovery process, the reactant is nano iron powder, and the reduction capability and the surface adsorption effect of the nano iron are utilized to quickly remove heavy metals in the wastewater and recover rare and precious metals. The process and series products have good reduction adsorption and reduction capability to the rare and precious metals such as gold, silver, selenium, copper and the like in water, and the adsorption rate reaches 95-99%. The nanometer iron powder used in the process has the grain size of about 10-200 nanometers, large specific surface area, fast reaction with metal ions in water, and the adsorption and treatment capacity of the nanometer iron powder to the metal ions is hundreds of times of that of common materials. Compared with the traditional process, the nano-iron reaction recovery process has the following characteristics: the impact load resistance is strong, the effluent quality effect is good, stable and reliable, the sludge sedimentation performance is good, the sludge amount is only 20% of that of the traditional process, and the gold, silver and copper contents in the sludge are high and exist in ion forms, so that the resource recycling of the sludge is realized.

The inventor finds that the existing nano-iron reaction process is not easy to control the addition amount of nano-iron raw materials and inconvenient in heavy metal recovery in the process of treating heavy metal wastewater and recovering rare and precious metal resources.

Disclosure of Invention

The application provides an integral type noble metal retrieves nanometer iron reaction unit to improve above-mentioned problem.

The invention is particularly such that:

based on the above purpose, this embodiment provides a nanometer iron reaction unit is retrieved to integral type noble metal, includes:

the device comprises a reaction mechanism and a nano iron adding mechanism, wherein the reaction mechanism comprises a reaction cylinder and a stirring component, and the stirring component is connected with the reaction cylinder and is used for stirring a mixed material in the reaction cylinder; nanometer iron adds mechanism includes storage component and gets and throws the subassembly, storage component with the retort is connected, storage component is used for storing the nanometer iron addition material, get throw the subassembly with the retort is connected, get to throw the subassembly be used for following storage component department acquires quantitative nanometer iron addition material and puts in the nanometer iron addition material extremely in the retort.

In one embodiment of the invention, the reaction cylinder comprises an inner cylinder and an outer cylinder, the inner cylinder is inserted into the outer cylinder, the inner cylinder is fixedly connected with the outer cylinder, a water inlet is arranged at the bottom of the inner cylinder, and the top of the inner cylinder is communicated with a cylinder cavity of the outer cylinder; a water outlet is formed in the top of the outer barrel, and a sludge discharge port is formed in the bottom of the outer barrel; the stirring component is arranged at the top of the outer barrel and is used for stirring the mixed materials in the inner barrel.

In one embodiment of the invention, the storage assembly comprises a storage bin and a discharge unit, the discharge unit comprises a material door and a reset piece, the storage bin is provided with a discharge hole, the material door is connected with the storage bin through the reset piece, the material door is used for opening or closing the discharge hole, and the reset piece is used for enabling the material door to always have the tendency of moving from a position for opening the discharge hole to a position for closing the discharge hole;

the taking and throwing assembly comprises a dosing pipe, a rack, a driving motor, a rotating wheel, a plurality of taking hoppers and a plurality of stirring pieces; the medicine feeding pipe penetrates through the top cover of the outer barrel and extends into the barrel cavity of the inner barrel; the rack is connected with the top cover, the driving motor is arranged on the rack, the rotating wheel is connected with an output shaft of the driving motor, the plurality of material taking hoppers are connected with the rotating wheel and are arranged at intervals in the circumferential direction of the rotating wheel, and one stirring piece is arranged between any two adjacent material taking hoppers; the driving motor is used for driving the rotating wheel to rotate so as to drive the material taking hopper and the stirring piece to rotate, the stirring piece can be abutted against the material door in the rotating process and cross the material door after being contacted for a set time, the material outlet is opened by the stirring piece when the stirring piece is abutted against the material door so that nano iron additive falling from the material outlet enters the corresponding material taking hopper, and the material door is reset under the action of the resetting piece so as to close the material outlet when the stirring piece crosses the material door; the dosing pipe is used for receiving the nano iron additive discharged from the material taking hopper and discharging the nano iron additive into the inner cylinder.

In one embodiment of the invention, a telescopic rod is installed on the charging door, and the poke rod is used for abutting against the telescopic rod; the length of the telescopic rod is adjusted to control the contact time of the poke rod and the telescopic rod, so that the time for opening the discharge port is controlled, and the dosage of the nano-iron additive in each material taking hopper is controlled.

In one embodiment of the invention, a liquid storage cavity and a plurality of switching channels which are communicated with the liquid storage cavity are arranged in the rotating wheel, the number of the switching channels is the same as that of the material taking hoppers and the switching channels are matched with the material taking hoppers in a one-to-one correspondence manner, and one end of each switching channel, which is far away from the liquid storage cavity, is communicated with the corresponding material taking hopper; every be provided with the tarpaulin in the getting hopper, the edge of tarpaulin all with the material mouth place terminal surface sealing connection of getting the hopper is in order to form the annular seal area, just the material mouth of getting the hopper is located in the region that the annular seal area encloses.

In an embodiment of the invention, a weighting part is arranged in the middle of the waterproof cloth, so that when the material taking hopper rotates to a position where the material inlet faces upwards, the waterproof cloth retracts into an area surrounded by the material taking hopper under the action of the weighting part.

In one embodiment of the invention, the number of the medicine feeding pipes is multiple and equal to that of the material taking hoppers, and the multiple medicine feeding pipes are uniformly distributed at intervals in the circumferential direction of the inner cylinder; the number of the discharge ports is multiple and equal to that of the material taking hoppers, each discharge port is correspondingly provided with one discharge unit, and the dosing pipes, the material taking hoppers and the discharge ports are matched in a one-to-one correspondence manner;

the pick-and-place assembly also comprises a rotating motor, a gear ring and a gear; the rotating motor is connected with the rack, the gear ring is fixed on the top cover of the outer cylinder and is coaxially arranged with the inner cylinder, and the rack and the gear ring are connected in a sliding manner in the circumferential direction of the gear ring through a guide rod; the gear is fixed on an output shaft of the rotating motor, the gear is meshed with the gear ring, and the rotating motor is used for driving the gear to rotate so as to enable the rack to rotate relative to the gear ring;

when the rack rotates relative to the gear ring, the poke rod is in contact with the material door at the corresponding discharge port to open the corresponding discharge port, so that the nano iron additive discharged from the discharge port enters the corresponding material taking hopper, and the nano iron additive in the material taking hopper can be discharged into the corresponding material adding pipe.

In one embodiment of the invention, a guide ring is arranged on one side of the gear ring, which is far away from the top cover, an annular guide groove is formed in the guide ring, a traveling wheel is arranged at the end part of the guide rod, and the traveling wheel travels in the annular guide groove.

In one embodiment of the invention, the poke rod is provided with a ball for contacting with the charging door.

In an embodiment of the present invention, the stirring assembly includes a stirring motor, a stirring shaft and a stirring blade, the stirring motor is disposed on the reaction mechanism, the stirring shaft is fixedly connected to an output shaft of the stirring motor, and the stirring blade is fixed to the stirring shaft.

The invention has the beneficial effects that:

to sum up, the integral type noble metal recovery nanometer iron reaction unit that this embodiment provided, during the use, store the nanometer iron addition material in storage assembly, introduce metal waste water from the water inlet, utilize the stirring subassembly to stir the miscellany material in to the reaction cylinder. In the process, the nano iron additive is quantitatively taken out from the storage component by the taking and throwing component, then the nano iron additive can be quantitatively added into the reaction cylinder by the taking and throwing component, and the nano iron additive is mixed with the metal wastewater and then stirred for full reaction, so that rare and precious metals such as gold, silver, selenium and copper in the metal wastewater can be conveniently recovered by the nano iron additive. Because the amount of the added materials is constant every time, the nano iron added materials participating in the reaction are convenient to control, the waste of resources is not easy to cause, and the recovery cost is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an integrated precious metal recovery nano-iron reaction device provided by the present application;

FIG. 2 is a schematic view of the enlarged partial structure of FIG. 1;

FIG. 3 is a schematic view of a state of the pick-and-place assembly provided herein;

FIG. 4 is a schematic structural view of another state of the pick-and-place assembly provided herein;

FIG. 5 is a schematic view of a portion of the pick and place assembly provided herein;

fig. 6 is a schematic structural view of the telescopic rod provided in the present application.

Icon:

100-a reaction mechanism; 110-a reaction cylinder; 111-inner cylinder; 112-outer cylinder; 113-a connecting rod; 114-a water inlet; 115-water outlet; 130-a stirring assembly; 131-a stirring motor; 132-a stirring shaft; 133-stirring blade; 200-a nano-iron adding mechanism; 210-a magazine assembly; 211-a storage bin; 2111-discharge port; 212-a discharge unit; 2121-bin gate; 2122-a restoring piece; 2123-telescopic rod; 2124-scale line; 220-taking and throwing component; 221-a medicine feeding pipe; 222-a frame; 223-driving the motor; 224-a wheel; 2241-a liquid storage cavity; 2242-switching channel; 225-material taking hopper; 226-a toggle; 2261-a ball; 227-waterproof cloth; 2271-a recess; 2272-a weight; 228-a rotating electrical machine; 229-a gear ring; 230-a gear; 231-a guide bar; 232-road wheels; 233-a guide ring; 2331-circular guide channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the application is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the application is used, is only for convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated integrated precious metal recovery nano-iron reaction device or element must have a specific orientation, be configured and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

At present, when nano iron is used for precious metal recovery, nano iron additive is intermittently added into a reaction cylinder according to experience, so that nano iron reacts with metal ions in metal water to recover metal. Because the adding time of the nano iron additive and the adding amount of the nano iron additive each time are controlled by the experience of workers, the amount of the nano iron added each time is inconsistent, and the interval time between two adjacent times of nano iron adding operations is inconsistent, so that the reaction tank between the metal water and the nano iron additive is not convenient to control, and the metal is inconvenient to recover. The nano iron has less added material amount, incomplete reaction and less precious metal recovery amount; the nano iron has more material adding amount and wastes resources.

Referring to fig. 1 to 6, in view of this, a designer designs an integrated precious metal recovery nano-iron reaction apparatus, which can reasonably control the addition time and the addition amount of a nano-iron additive, so as to better react with metal water, facilitate the treatment of the metal water, and make the recovery of precious metals more reliable.

Referring to fig. 1 and fig. 2, in the present embodiment, the integrated precious metal recovery nano-iron reaction apparatus includes a reaction mechanism 100 and a nano-iron adding mechanism 200, the reaction mechanism 100 includes a reaction cylinder 110 and a stirring component 130, and the stirring component 130 is connected to the reaction cylinder 110 and is configured to stir a mixture located in the reaction cylinder 110; the nano-iron adding mechanism 200 comprises a storage component 210 and a taking and throwing component 220, the storage component 210 is connected with the reaction cylinder 110, the storage component 210 is used for storing nano-iron adding materials, the taking and throwing component 220 is connected with the reaction cylinder 110, and the taking and throwing component 220 is used for obtaining quantitative nano-iron adding materials from the storage component 210 and throwing the nano-iron adding materials into the reaction cylinder 110.

The integrated reaction device for recovering nano iron from precious metal provided by the embodiment has the following working principle:

when the nano iron additive is used, enough nano iron additive is stored in the storage assembly 210, then the metal wastewater is introduced from the water inlet 114, and the stirring assembly 130 is used for stirring the mixed materials in the reaction cylinder 110. In the process, the nano iron additive is quantitatively taken out from the storage component 210 by the taking and throwing component 220, then the nano iron additive can be quantitatively added into the reaction cylinder 110 by the taking and throwing component 220, and the nano iron additive is mixed with the metal wastewater and then stirred under the action of the stirring component 130 for full reaction, so that rare and precious metals such as gold, silver, selenium and copper in the metal wastewater can be conveniently recovered by the nano iron additive. Because the amount of the added materials is constant and the same at every time, the error caused by judging the addition amount of the nano iron through the experience of workers is reduced, the nano iron added materials participating in the reaction are convenient to control, the waste of resources is not easy to cause, the metal water and the nano iron powder can fully react, the recovery amount of the precious metals is improved, and the recovery cost is reduced.

Referring to fig. 1, in the present embodiment, optionally, the reaction cylinder 110 includes an inner cylinder 111 and an outer cylinder 112. The inner cylinder 111 and the outer cylinder 112 are both cylindrical cylinders, the inner cylinder 111 is inserted into the outer cylinder 112, the inner cylinder 111 is fixedly connected with the outer cylinder 112, for example, a plurality of connecting rods 113 are arranged at the top edge of the inner cylinder 111, the plurality of connecting rods 113 are uniformly distributed around the circumference of the inner cylinder 111 at intervals, and one ends of the plurality of connecting rods 113 far away from the inner cylinder 111 are fixed on the top wall of the outer cylinder 112 through screws. And, the bottom of the inner cylinder 111 is spaced apart from the bottom of the outer cylinder 112 so as to form a deposition region, and the top of the inner cylinder 111 is spaced apart from the top of the outer cylinder 112 so that the top of the inner cylinder 111 communicates with the cylinder chamber of the outer cylinder 112. The inner cylinder 111 and the outer cylinder 112 are assembled and coaxially arranged. Meanwhile, the bottom of the inner cylinder 111 is provided with a water inlet 114, and a water inlet pipe can be assembled at the water inlet 114 and is used for being communicated with a metal water source through a hose, so that the metal water is conveyed into the inner cylinder 111. The top of the outer cylinder 112 is provided with a top cover which can be detached, a water outlet 115 is arranged on the wall of the outer cylinder 112 close to the top, and the height of the water outlet 115 is lower than that of the top of the inner cylinder 111. The bottom of the outer cylinder 112 is provided with a sludge discharge port; the stirring assembly 130 is disposed on the top cover of the outer cylinder 112 and is used for stirring the mixture in the inner cylinder 111. It should be noted that the number of the water discharge ports 115 may be multiple, the multiple water discharge ports 115 are arranged at intervals in the circumferential direction of the outer cylinder 112, and each water discharge port 115 may be provided with one water pipe, so as to guide the discharged water to a set position.

Referring to fig. 1 and fig. 2, in the present embodiment, the storage assembly 210 optionally includes a storage bin 211 and an output unit 212. The discharging unit 212 includes a discharging door 2121, a restoring member 2122, and a retractable rod 2123. The storage bin 211 is provided with a discharge port 2111, and the storage bin 211 is provided as a funnel-shaped bin, that is, the inner cavity of the storage bin 211 has a structural design of large top and small bottom, and the discharge port 2111 is located at a lower position, so as to discharge the nano-powder in the storage bin 211 conveniently. The bin gate 2121 is connected with the storage bin 211 through a resetting part 2122, the bin gate 2121 is used for opening or closing the discharge port 2111, and the resetting part 2122 is used for enabling the bin gate 2121 to always have the tendency of moving from the position of opening the discharge port 2111 to the position of closing the discharge port 2111; the retractable rod 2123 is connected to the bin gate 2121, and the length of the retractable rod 2123 can be changed. Referring to fig. 6, for example, the retractable rod 2123 includes a first rod and a second rod that are slidably connected, the first rod is fixedly connected to the bin gate 2121, the second rod is slidable relative to the first rod, the first rod has a blind hole, the second rod is inserted into the blind hole and is slidable along a depth direction of the blind hole, and a screw is screwed to the outside of the first rod, and an end of the screw can be abutted against the outside of the second rod by screwing the screw, so that the first rod and the second rod are relatively fixed. Or when the positions of the first rod and the second rod need to be adjusted, the screws are loosened, and the first rod and the second rod can slide relatively. Furthermore, the second rod is provided with scale lines 2124, so that the length of the Chu Huoqu second rod extending out of the first rod can be cleared, and adjustment is facilitated.

In addition, a guide groove is formed in the storage bin 211, the guide groove is a dovetail groove or a T-shaped groove, the bin gate 2121 is slidably connected to the guide groove, the position of the bin gate 2121 is stable, the sliding is stable, and the discharge port 2111 can be opened or closed during the sliding process of the bin gate 2121. When the retractable rods 2123 are coupled to the bin gate 2121, the retractable rods 2123 are disposed substantially perpendicular to the bin gate 2121.

It should be noted that the resetting element 2122 may be a spring or a leaf spring.

Referring to fig. 1-4, optionally, the taking and feeding assembly 220 includes a medicine feeding tube 221, a frame 222, a driving motor 223, a rotating wheel 224, a plurality of material taking hoppers 225 and a plurality of stirring members 226, for example, in this embodiment, three material taking hoppers 225 and three stirring members 226 are provided. The dosing pipe 221 penetrates through the top cover of the outer cylinder 112 and extends into the cylinder cavity of the inner cylinder 111. The rack 222 is connected with the top cover, the driving motor 223 is arranged on the rack 222, the rotating wheel 224 is connected with an output shaft of the driving motor 223, the three material taking hoppers 225 are all connected with the rotating wheel 224 and are uniformly arranged at intervals in the circumferential direction of the rotating wheel 224, a stirring piece 226 is arranged between any adjacent material taking hoppers 225, in other words, the three material taking hoppers 225 and the three stirring pieces 226 are alternately arranged one by one, a stirring piece 226 is arranged between any adjacent material taking hoppers 225 in the circumferential direction of the rotating wheel 224, or a material taking hopper 225 is arranged between any adjacent stirring pieces 226, and the stirring piece 226 protrudes out of the material taking hoppers 225 along the radial direction of the rotating wheel 224. The driving motor 223 is used for driving the rotating wheel 224 to rotate so as to drive the material taking hopper 225 and the stirring member 226 to rotate, the stirring member 226 can abut against the telescopic rod 2123 on the material door 2121 in the rotating process and cross over the telescopic rod 2123 after contacting for a set time, that is, the stirring member 226 can be separated from the telescopic rod 2123, meanwhile, the discharging port 2111 is opened when the stirring member 226 abuts against the material door 2121, so that the nano iron additive falling from the discharging port 2111 enters the corresponding material taking hopper 225, and after the stirring member 226 crosses over the telescopic rod 2123, the material taking door 2121 is reset to close the discharging port 2111 under the action of the resetting member 2122. The chemical feeding pipe 221 is used for receiving the nano-iron additive discharged from the sampling hopper 225 and discharging the nano-iron additive into the inner cylinder 111.

It will be appreciated that when the wheel 224 rotates, the toggle member 226 abuts against the retractable rod 2123 and can drive the bin door 2121 to open the discharge port 2111, and when the discharge port 2111 is opened, the material in the storage bin 211 falls down into the take-out bin 225. After the toggle member 226 leaves the retractable rod 2123, the material gate 2121 is reset to close the discharge port 2111 by the reset member 2122, and the material is not dropped substantially or is dropped a little into the material taking bin 225. Since the three toggle members 226 are uniformly spaced, and the length of each toggle member 226 is the same, and the size of the retractable rod 2123 is the same, the opening time of each material door 2121 is the same, so that the material amount can be controlled conveniently.

Optionally, the length of the retractable rod 2123 is adjusted to adjust the abutting time between the toggle member 226 and the retractable rod 2123, so as to control the time for opening the discharge port 2111, further control the discharge amount, and facilitate adjustment.

Referring to fig. 3 or fig. 4, optionally, a liquid storage cavity 2241 and a plurality of switching passages 2242 both communicated with the liquid storage cavity 2241 are disposed inside the rotating wheel 224, the number of the switching passages 2242 is the same as the number of the material taking hoppers 225, and the switching passages 2242 are correspondingly matched with one another, for example, the number of the switching passages 2242 is three. One end of each switching passage 2242, which is far away from the liquid storage cavity 2241, is communicated with the corresponding material taking hopper 225; a waterproof cloth 227 is arranged in each material taking hopper 225, the edge of the waterproof cloth 227 is hermetically connected with the end face where the material opening of the material taking hopper 225 is located to form an annular sealing belt, and the material opening of the material taking hopper 225 is located in the area surrounded by the annular sealing belt. The tarp 227 can avoid fitting with the inside of the fetching hopper 225, so that the tarp 227 forms a recess 2271 which is aligned with the inner cavity of the fetching hopper 225, and the recess 2271 can receive the material falling from the discharge port 2111. Taking the movement process of the material taking hopper 225 as an example, the material taking hopper 225 moves to the position right below the material outlet 2111, at this time, the material outlet 2111 is opened, the material enters the concave portion 2271, the opening of the material taking hopper 225 gradually rotates along with the rotation of the rotating wheel 224, and the material in the material taking hopper 225 slides off the material taking hopper 225 under the action of gravity and enters the medicine adding pipe 221. Meanwhile, water stored in the liquid storage cavity 2241 can enter an area formed by the material taking hopper 225 and the waterproof cloth 227 through the corresponding butt joint channel, so that the waterproof cloth 227 is pushed to protrude outwards, materials in the waterproof cloth 227 completely leave the waterproof cloth 227, the materials are not easy to accumulate on the waterproof cloth 227, and the material control is more accurate.

Further, the middle position of tarpaulin 227 is provided with aggravate portion 2272 to when making fetching hopper 225 rotate to the position that the material mouth faces upward, tarpaulin 227 withdraws to the region that fetching hopper 225 encloses under the effect of aggravate portion 2272, makes tarpaulin 227 can form the depressed part 2271 better, with the material of storage falling from discharge gate 2111. The weight portion 2272 may be a plastic block or a metal block bonded to the inner side of the tarpaulin 227.

In this embodiment, optionally, the number of the medicine feeding pipes 221 is multiple and equal to the number of the material taking hoppers 225, for example, the number of the medicine feeding pipes 221 is three, and the three medicine feeding pipes 221 are uniformly arranged at intervals in the circumferential direction of the inner cylinder 111; the number of the discharge ports 2111 is multiple and equal to that of the material taking hoppers 225, that is, the number of the discharge ports 2111 is three, one discharge unit 212 is correspondingly arranged at each discharge port 2111, and the dosing pipes 221, the material taking hoppers 225 and the discharge ports 2111 are correspondingly matched one by one.

Referring to fig. 2 and 5, the pick-and-place assembly 220 further includes a rotating electrical machine 228, a gear ring 229 and a gear 230; the rotating motor 228 is connected to the frame 222, the gear ring 229 is fixed to the top cover of the outer cylinder 112 and is coaxially disposed with the inner cylinder 111, the frame 222 and the gear ring 229 are slidably connected in a circumferential direction of the gear ring 229 through a guide rod 231, for example, an annular guide groove 2331 extending in the circumferential direction of the gear ring 229 is disposed on the gear ring 229, a traveling wheel 232 is disposed on the guide rod 231, the traveling wheel 232 travels in the annular guide groove 2331, and the annular guide groove 2331 may be a dovetail groove or a T-shaped groove. A gear 230 is fixed to an output shaft of the rotary electric machine 228, the gear 230 is engaged with the ring gear 229, and the rotary electric machine 228 is configured to rotate the gear 230, thereby rotating the frame 222 relative to the ring gear 229.

When the rack 222 rotates relative to the gear ring 229, the poke rod contacts with the material door 2121 at the corresponding discharge port 2111 to open the corresponding discharge port 2111, so that the nano-iron additive material discharged from the discharge port 2111 enters the corresponding sampling hopper 225, and further the nano-iron additive material in the sampling hopper 225 can be discharged into the corresponding dosing pipe 221.

It should be understood that the guide ring 233 may be disposed on a side of the gear ring 229 away from the top cover, the annular guide slot 2331 is disposed on the guide ring 233, the gear ring 229 and the guide ring 233 are processed independently, so as to reduce the processing difficulty, the gear ring 229 and the guide ring 233 may be fixed by welding, and the guide ring 233 and the gear ring 229 are both in a circular ring structure and are disposed coaxially.

In this embodiment, optionally, the shifting rod is provided with a ball 2261 for contacting with the telescopic rod 2123, so as to reduce friction.

In this embodiment, optionally, the stirring assembly 130 includes a stirring motor 131, a stirring shaft 132 and a stirring blade 133, the stirring motor 131 is disposed on the top cover of the outer barrel 112, the stirring shaft 132 is fixedly connected to an output shaft of the stirring motor 131, and the stirring blade 133 is fixed on the stirring shaft 132.

The integrated precious metal recovery nano-iron reaction device provided by the embodiment can accurately control the addition amount of the nano-iron additive, has small error and good treatment effect on metal water.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides an integral type noble metal retrieves nanometer iron reaction unit which characterized in that includes:

the reaction mechanism comprises a reaction cylinder and a stirring component, and the stirring component is connected with the reaction cylinder and is used for stirring the mixed material in the reaction cylinder; nanometer iron adds mechanism includes storage component and gets and throws the subassembly, storage component with the retort is connected, storage component is used for storing the nanometer iron addition material, get throw the subassembly with the retort is connected, get to throw the subassembly be used for following storage component department acquires quantitative nanometer iron addition material and puts in the nanometer iron addition material extremely in the retort.

2. The integrated reaction device for recovering nano-iron from precious metals according to claim 1, characterized in that:

the reaction barrel comprises an inner barrel and an outer barrel, the inner barrel is inserted into the outer barrel, the inner barrel is fixedly connected with the outer barrel, a water inlet is formed in the bottom of the inner barrel, and the top of the inner barrel is communicated with a barrel cavity of the outer barrel; a water outlet is formed in the top of the outer barrel, and a sludge discharge port is formed in the bottom of the outer barrel; the stirring component is arranged at the top of the outer barrel and is used for stirring the mixed materials in the inner barrel.

3. The integrated precious metal recovery nano-iron reaction device according to claim 2, wherein:

the storage assembly comprises a storage bin and a discharge unit, the discharge unit comprises a material door and a reset piece, the storage bin is provided with a discharge port, the material door is connected with the storage bin through the reset piece, the material door is used for opening or closing the discharge port, and the reset piece is used for enabling the material door to always have the trend of moving from a position for opening the discharge port to a position for closing the discharge port;

the taking and throwing assembly comprises a dosing pipe, a rack, a driving motor, a rotating wheel, a plurality of taking hoppers and a plurality of stirring parts; the medicine feeding pipe penetrates through the top cover of the outer barrel and extends into the barrel cavity of the inner barrel; the rack is connected with the top cover, the driving motor is arranged on the rack, the rotating wheel is connected with an output shaft of the driving motor, the plurality of material taking hoppers are connected with the rotating wheel and are arranged at intervals in the circumferential direction of the rotating wheel, and one stirring piece is arranged between any two adjacent material taking hoppers; the driving motor is used for driving the rotating wheel to rotate so as to drive the material taking hopper and the stirring piece to rotate, the stirring piece can be abutted against the material door in the rotating process and cross the material door after being contacted for a set time, the material outlet is opened by the stirring piece when the stirring piece is abutted against the material door so that nano iron additive falling from the material outlet enters the corresponding material taking hopper, and the material door is reset under the action of the resetting piece so as to close the material outlet when the stirring piece crosses the material door; the dosing pipe is used for receiving the nano iron additive discharged from the material taking hopper and discharging the nano iron additive into the inner cylinder.

4. The integrated reaction device for recovering nano-iron from precious metals according to claim 3, characterized in that:

the charging door is provided with a telescopic rod, and the poke rod is used for abutting against the telescopic rod; the length of the telescopic rod is adjusted to control the contact time of the poke rod and the telescopic rod, so that the time for opening the discharge port is controlled, and the dosage of the nano-iron additive in each material taking hopper is controlled.

5. The integrated precious metal recovery nano-iron reaction device according to claim 3, wherein:

a liquid storage cavity and a plurality of switching channels which are communicated with the liquid storage cavity are arranged in the rotating wheel, the number of the switching channels is the same as that of the material taking hoppers, the switching channels are matched with the material taking hoppers in a one-to-one correspondence manner, and one end, far away from the liquid storage cavity, of each switching channel is communicated with the corresponding material taking hopper; every be provided with the tarpaulin in the getting hopper, the edge of tarpaulin all with the material mouth place terminal surface sealing connection of getting the hopper is in order to form the annular seal area, just the material mouth of getting the hopper is located in the region that the annular seal area encloses.

6. The integrated precious metal recovery nano-iron reaction device according to claim 5, wherein:

the middle position of tarpaulin is provided with aggravates the portion to make get the hopper when rotating to the position that the material mouth faces upward under the effect of aggravating the portion the tarpaulin retract get in the region that the hopper encloses.

7. The integrated precious metal recovery nano-iron reaction device according to any one of claims 2 to 6, wherein:

the number of the medicine feeding pipes is equal to that of the material taking hoppers, and the medicine feeding pipes are uniformly distributed at intervals in the circumferential direction of the inner barrel; the number of the discharge ports is multiple and equal to that of the material taking hoppers, each discharge port is correspondingly provided with one discharge unit, and the dosing pipes, the material taking hoppers and the discharge ports are matched in a one-to-one correspondence manner;

the pick-and-place assembly also comprises a rotating motor, a gear ring and a gear; the rotating motor is connected with the rack, the gear ring is fixed on the top cover of the outer cylinder and is coaxially arranged with the inner cylinder, and the rack and the gear ring are connected in a slidable manner in the circumferential direction of the gear ring through a guide rod; the gear is fixed on an output shaft of the rotating motor, the gear is meshed with the gear ring, and the rotating motor is used for driving the gear to rotate so as to enable the rack to rotate relative to the gear ring;

when the rack rotates relative to the gear ring, the poke rod is in contact with the material door at the corresponding discharge port to open the corresponding discharge port, so that the nano iron additive discharged from the discharge port enters the corresponding material taking hopper, and the nano iron additive in the material taking hopper can be discharged into the corresponding material adding pipe.

8. The integrated precious metal recovery nano-iron reaction device according to claim 7, wherein:

one side that the ring gear deviates from the top cap is provided with the guide ring, be provided with annular guide slot on the guide ring, the tip of guide bar is provided with the walking wheel, the walking wheel walk in the annular guide slot.

9. The integrated precious metal recovery nano-iron reaction device according to claim 7, wherein:

the poke rod is provided with a ball which is used for being in contact with the charging door.

10. The integrated reaction device for recovering nano-iron from precious metals according to claim 1, characterized in that:

the stirring assembly comprises a stirring motor, a stirring shaft and stirring blades, the stirring motor is arranged on the reaction mechanism, the stirring shaft is fixedly connected with an output shaft of the stirring motor, and the stirring blades are fixed on the stirring shaft.

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