CN115488039A - Lead regeneration method based on lead plaster in waste lead-acid battery - Google Patents

Abstract

The invention discloses a method for regenerating lead based on lead plaster in waste lead-acid batteries, which relates to the technical field of lead-acid battery recovery processing.

Description

Lead regeneration method based on lead plaster in waste lead-acid battery

Technical Field

The invention relates to the technical field of lead-acid battery recovery processing, in particular to a method for regenerating lead based on lead plaster in waste lead-acid batteries.

Background

In the existing waste lead-acid battery treatment process, the waste lead-acid battery is generally directly crushed and scattered, and then is treated by a fire refining or chemical reaction or combination of the fire refining and the chemical reaction to generate lead plaster and/or regenerated lead, for example, the waste lead plaster recycling method of the lead-acid battery with the publication number of CN108565402 is combined by various methods to reproduce the battery, but has some defects, in the traditional regenerated lead production process, mixed lead powder containing lead material particles, plastic particles and metal particles is directly introduced into a chemical reaction tank, so that the internal reaction is complex, the additive dosage is more, the efficiency of the reaction production of the regenerated lead is lower, the intelligent degree is lower, the production cost is higher, and the production resources are wasted;

in view of the above technical drawbacks, a solution is proposed.

Disclosure of Invention

The invention aims to: on the basis of screening and obtaining lead powder with consistent particle size, the invention carries out winnowing separation and purification on lead particles and plastic particles in the lead powder, acquires parameters of corresponding airflow (gas) in real time in the process, and carries out real-time analysis and processing on the parameters, thereby realizing the intelligent promotion of the work of recovering the lead particles, realizing the automatic operation process of recovering and purifying the lead particles, reducing the content and the quantity of components in the lead powder, improving the subsequent efficiency, reducing the complexity of the subsequent reaction and reducing the dosage of additives.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method for regenerating lead based on lead plaster in waste lead-acid batteries comprises the following steps:

step one, screening to obtain target particles: after the lead powder enters the screening and purifying equipment, the lead powder enters the screening assembly from a feeding hollow rod of the screening and purifying equipment, the screening assembly screens the lead powder for multiple times to obtain the lead powder with the consistent particle size, then the lead powder with the consistent particle size is conveyed into the rough separation assembly through the threaded conveyor, and the lead powder with the consistent particle size and containing lead material particles and plastic particles enters an inclined feeding pipe of the rough separation assembly through the threaded conveyor;

step two, separating lead powder: pre-starting a centrifugal fan at the bottom of the coarse separation component to extract external air and flow the external air through a flow velocity sensor, then enabling the external air to enter from the bottom of the coarse separation component and uniformly guide, distribute and filter the external air to obtain clean air blown upwards, enabling the lead powder to be uniformly scattered in the middle of the coarse separation component at the moment, enabling the clean air to flow upwards, blowing light plastic particles in the lead powder and flowing through the flow velocity sensor to enter a crescent conveying pipe, meanwhile, enabling heavy lead powder particles which are not blown in the lead powder to fall into the coarse separation component, and enabling the real-time air inlet flow velocity in the lead powder separation process and the real-time air outlet flow velocity in the lead powder separation process to be at the moment;

step three, purifying plastic particles: when plastic particles enter the fine separation assembly through the crescent conveying pipe, the plastic particles are uniformly sprayed at the middle part of the fine separation assembly, the centrifugal fan at the bottom of the fine separation assembly is started to extract external air and flow through the flow velocity sensor, then the external air enters the coarse separation assembly from the bottom of the coarse separation assembly and is uniformly guided, distributed and filtered to obtain clean and upward-blown clean gas, the clean gas blows more plastic particles upwards after flowing upwards, the plastic particles flow upwards through the flow velocity sensor and are collected, and meanwhile, less lead particles fall onto the surface of the breathable partition plate, so that the purification work of the plastic particles is realized; at the moment, the flow velocity sensor senses the real-time outlet flow velocity in the plastic particle purifying process and the real-time inlet flow velocity in the plastic particle purifying process;

step four, dynamically recovering lead particles: in the process, the sensed real-time inlet flow rate in the lead powder separation process, the sensed real-time outlet flow rate in the lead powder separation process and the sensed real-time inlet flow rate in the plastic particle purification process are sent to the information storage unit for storage and are analyzed and processed by the pneumatic operation unit, and a coarse separation material pushing signal and a fine separation material pushing signal are respectively obtained;

the generated rough separation pushing signal and the fine separation pushing signal are sent to a dynamic execution unit through a processor;

after receiving the rough separation material pushing signal and the fine separation material pushing signal, the dynamic execution unit controls the corresponding rough separation component part or fine separation component part to dynamically recover lead material particles;

step five, purifying lead material particles: and re-conveying the dynamically recovered lead particles to the first step to the fourth step.

Further, screening purification equipment includes screening casing and control panel, the screening casing rotates and is equipped with screening subassembly, screening subassembly through the pipeline respectively through link up with screw thread conveyer, coarse grain collecting box and fine grain collecting box, screw thread conveyer through link up with coarse separation subassembly, coarse separation subassembly's top through link up with the crescent conveyer pipe, the one end through link up that coarse separation subassembly was kept away from to the crescent conveyer pipe has fine separation subassembly, coarse separation subassembly and fine separation subassembly's bottom all through link up has the separation fan, and coarse separation subassembly and fine separation subassembly's air intake and air exit all install velocity of flow sensor, and coarse separation subassembly is the same with fine separation subassembly structure.

Further, the screening subassembly includes interior screening ring, interior screening ring rotates and locates in the screening casing, and the both ends of interior screening ring and the inner wall butt of screening casing, the outer end of interior screening ring is equipped with outer screening ring, and the inner wall butt of outer screening ring and screening casing, interior screening ring inlays and is equipped with interior screening district, outer screening ring inlays and is equipped with outer screening district, the hollow pole of one end center fixed connection feeding of interior screening ring, and the one end of the hollow pole of feeding rotate the inner wall that runs through the screening casing and extend to its outside, outer screening ring and the setting of interior screening ring clearance, and the equal fixedly connected with scraping wings in outer screening ring and the outer end of interior screening ring, one of them scraping wings are located between outer screening ring and the interior screening ring clearance and rather than fixed connection, and wherein the one end that outer screening ring outer end was kept away from to another scraping wings slides the butt with the inner wall of interior screening ring, the scraping wings is equipped with a plurality ofly, and the scraping wings is centered and distributes according to the annular array with the ring center of inner screening ring, the one end transmission of interior screening ring is connected with drive assembly.

Further, drive assembly includes driven bull stick, the one end of driven bull stick and the one end center department fixed connection of interior screening ring, the one end that interior screening ring was kept away from to driven bull stick is passed through the bearing and is rotated the inner wall that runs through interior screening ring and extend to its outside and fixed cover and be equipped with driven gear, driven gear's outer end meshing cover is equipped with the transmission toothed chain, the inner meshing cover of transmission toothed chain is equipped with the driving gear, the fixed cover in inner of driving gear is equipped with the initiative bull stick, the one end of initiative bull stick is passed through the bearing and is rotated and be connected with the headstock, and the other end of initiative bull stick passes through the bearing and is connected with the outer wall rotation of interior screening ring, the headstock is fixed in the outer end of interior screening ring of locating, the fixed screening motor that is equipped with in outer end of headstock, the output shaft and the other end fixed connection of initiative bull stick of screening motor.

Further, rough separation subassembly is including separating the casing, be equipped with ventilative baffle in the separation casing, ventilative baffle and the inner wall fixed connection of split ring shell and separation casing, ventilative baffle is located under the split ring shell, the both ends section of separation casing is three horn shapes, and the both ends of separation casing all link up and install flow velocity sensor, and the lining up of separating the fan installs in the bottom minimum point department of separation casing, gas filter layer is installed to the bottom of ventilative baffle, gas filter layer's bottom is equipped with gaseous direction way, the top slip of ventilative baffle is equipped with the return push pedal, return push pedal cover is equipped with spacing slide bar and electric lead screw, electric lead screw and return push pedal threaded connection, and return push pedal and spacing slide bar sliding connection, electric lead screw and ventilative baffle parallel arrangement, and electric lead screw rotate and locate in the separation casing, spacing slide bar is fixed to be located in the separation casing, the middle part of separation casing is equipped with evenly sprays the subassembly.

Further, evenly spray the subassembly including the split ring shell, the fixed middle part of locating the separation casing of split ring shell, the connecting rod is kept away from the solid fixed ring of one end fixedly connected with of split ring shell, locates the top gu fixed ring has seted up the material mouth, material mouth and inclined inlet pipe through connection, gu fixed ring internal fixation is equipped with the bushing, is equipped with the triangle between the solid fixed ring of bushing and bottom and divides to spill the fill, the bottom gu fixed ring's bottom surface center department fixed mounting has the branch to spill the motor, the output shaft that spills the motor spills and the triangle divides to spill fill fixed connection, the fixed cover in outer end that the three angles divided to spill the fill is equipped with the branch and spills the blade, it is equipped with a plurality ofly to spill the blade, and spills the blade and uses the triangle to spill the fill axis of spilling to be the centre of a circle and distribute according to annular array.

Further, the control panel comprises a data storage unit, a pneumatic operation unit, a processor and a dynamic execution unit, wherein the analysis and processing process of the pneumatic operation unit is as follows:

the method comprises the steps that a pneumatic operation unit obtains real-time air inlet flow rate in the lead powder separation process, real-time air outlet flow rate in the lead powder separation process and real-time air inlet flow rate in the plastic particle purification process in real time, then the real-time air inlet flow rates are respectively marked as QV0, QV1, SV0 and SV1, and then a rough separation material pushing factor A0 is obtained according to a formula A0= QV0-k 1. Obtaining a fine separation pushing factor A1 according to a formula A1= SV0-k2 SV 1; wherein QV0 and SV0 are constant values, k1 and k2;

when the rough separation material pushing factor A0 is larger than a preset value corresponding to the rough separation material pushing factor A, a rough separation material pushing signal is generated; when the fine separation material pushing factor A1 is larger than a preset value corresponding to the fine separation material pushing factor A, a fine separation material pushing signal is generated; otherwise, no control signal is generated;

and the generated rough separation material pushing signal or the fine separation material pushing signal is sent to the dynamic execution unit through the processor.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

on the basis of screening and obtaining lead powder with consistent particle size, the invention carries out winnowing separation and purification on lead material particles and plastic particles in the lead powder, acquires parameters corresponding to air flow (gas) in real time in the process, and carries out real-time analysis and processing on the parameters, thereby realizing the intelligent promotion of the work of recovering the lead material particles, realizing the automatic operation process of recovering and purifying the lead material particles, and reducing the content and the quantity of components in the lead powder, thereby improving the subsequent efficiency, reducing the complexity of the subsequent reaction, reducing the consumption of additives, reducing the resource consumption in the whole recovery process, and solving the problems that the lead powder containing mixed lead material particles, plastic particles and metal particles is directly introduced into a chemical reaction tank in the traditional secondary lead production process, so that the reaction is more, the consumption of the additives is more, and the efficiency of the secondary lead production is lower.

Drawings

FIG. 1 shows a flow chart of the method of the present invention;

FIG. 2 shows an internal view of the structure of the present invention;

FIG. 3 shows a cross-sectional view of a screen assembly;

FIG. 4 shows a cross-sectional view at the triangular dispensing bin;

FIG. 5 shows a flow chart of the architecture of the present invention;

illustration of the drawings: 1. screening the housing; 2. a screen assembly; 3. a screw conveyor; 4. a coarse separation assembly; 5. a fine separation component; 6. a separation fan; 7. a crescent conveying pipe; 8. a flow rate sensor; 9. a coarse particle collection box; 10. a fine particle collection box; 201. an inner screening ring; 202. an outer screening ring; 203. an inner screening area; 204. an outer screening zone; 205. feeding a hollow rod; 206. a power box; 207. an active rotating rod; 208. a screening motor; 209. a driving gear; 210. a transmission gear chain; 211. a driven gear; 212. a driven rotating rod; 213. a material pushing plate; 401. separating the shell; 402. a gas guide channel; 403. a gas filtration layer; 404. a breathable partition; 405. an electric screw rod; 406. a limiting slide bar; 407. a return push plate; 408. the ring shell is split; 409. a connecting rod; 410. a fixing ring; 411. a three-angle scattering hopper; 412. scattering leaves; 413. scattering the motor; 414. a slant feed pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

Example 1:

as shown in fig. 1-5, a method for regenerating lead based on lead plaster in waste lead-acid batteries comprises a screening shell 1, a screening component 2 is rotationally arranged in the screening shell 1, the screening component 2 is respectively connected with a threaded conveyor 3, a coarse particle collecting box 9 and a fine particle collecting box 10 in a penetrating manner through pipelines, the screening component 2 is used for screening lead powder to obtain target particles, and conveying coarse particle lead powder larger than the target particles into the coarse particle collecting box 9, conveying fine particle lead powder smaller than the target particles into the fine particle collecting box 10, conveying the target particle lead powder into the threaded conveyor 3, the threaded conveyor 3 is connected with a coarse separation component 4 in a penetrating manner, the top of the coarse separation component 4 is connected with a crescent conveying pipe 7 in a penetrating manner, one end, far away from the coarse separation component 4, of the crescent conveying pipe 7 is connected with a fine separation component 5 in a penetrating manner, the bottoms of the coarse separation component 4 and the fine separation component 5 are both connected with separation fans 6 in a penetrating manner, the two separation fans 6 respectively blow air into the coarse separation component 4 and the fine separation component 5, air inlets and air outlets of the coarse separation component 4 and the fine separation component 5 are respectively provided with flow velocity sensors 8, air outlets for sensing the coarse separation component 4 and the fine separation component 5, the air outlets respectively, the air separation component 4 and fine separation component 5 can realize the standardized intelligent separation efficiency control of the plastic separation, and the plastic separation component 5, and the plastic separation process can realize the accurate separation process;

the screening assembly 2 comprises an inner screening ring 201, the inner screening ring 201 is rotatably arranged in the screening shell 1, two ends of the inner screening ring 201 are abutted to the inner wall of the screening shell 1, an outer screening ring 202 is arranged at the outer end of the inner screening ring 201, the outer screening ring 202 is abutted to the inner wall of the screening shell 1, an inner screening area 203 is embedded in the inner screening ring 201, an outer screening area 204 is embedded in the outer screening ring 202, a feeding hollow rod 205 is fixedly connected to the center of one end of the inner screening ring 201, one end of the feeding hollow rod 205 rotatably penetrates through the inner wall of the screening shell 1 to extend to the outside of the inner screening ring and is externally connected with a powder outlet end of a crushing and powdering machine, a screening hole of the inner screening area 203 is larger than the screening hole of the outer screening area 204, lead powder is screened, and target lead powder with the same size is obtained;

the outer screening ring 202 and the inner screening ring 201 are arranged in a clearance mode, the outer ends of the outer screening ring 202 and the inner screening ring 201 are fixedly connected with material pushing plates 213, one material pushing plate 213 is arranged between the clearance between the outer screening ring 202 and the inner screening ring 201 and is fixedly connected with the clearance, one end, far away from the outer end of the outer screening ring 202, of the other material pushing plate 213 is in sliding butt joint with the inner wall of the inner screening ring 201, the material pushing plates 213 are provided with a plurality of material pushing plates, the material pushing plates 213 are distributed in an annular array mode by taking the ring center of the inner screening ring 201 as the center, and the material pushing plates 213 enable the inner end, which is used for scraping and cleaning the outer screening ring 202, to be better in scraping mode, lead powder is prevented from being attached, and lead powder is scattered;

the center of one end of the inner screening ring 201 is fixedly connected with a driven rotating rod 212, one end of the driven rotating rod 212, far away from the inner screening ring 201, penetrates through the inner wall of the inner screening ring 201 to extend to the outside through rotation of a bearing and is fixedly sleeved with a driven gear 211, the outer end of the driven gear 211 is meshed and sleeved with a transmission toothed chain 210, the inner end of the transmission toothed chain 210 is meshed and sleeved with a driving gear 209, the inner end of the driving gear 209 is fixedly sleeved with a driving rotating rod 207, one end of the driving rotating rod 207 is rotatably connected with a power box 206 through a bearing, the other end of the driving rotating rod 207 is rotatably connected with the outer wall of the inner screening ring 201 through a bearing, the power box 206 is fixedly arranged at the outer end of the inner screening ring 201, the outer end of the power box 206 is fixedly provided with a screening motor 208, and an output shaft of the screening motor 208 is fixedly connected with the other end of the driving rotating rod 207, the screening motor 208 works and controls an output shaft thereof to rotate, the output shaft of the screening motor 208 drives a driving rotating rod 207 fixed with the screening motor to rotate after rotating, the driving rotating rod 207 drives a driving gear 209 fixedly sleeved with the driving gear to rotate after rotating, the driving gear 209 drives a transmission toothed chain 210 meshed with the outer end of the driving gear to rotate, the transmission toothed chain 210 drives a driven gear 211 meshed with the inner end of the transmission toothed chain to rotate after rotating, the driven gear 211 is fixedly connected with a driven rotating rod 212 to rotate after rotating, the driven rotating rod 212 drives an inner screening ring 201 fixed with the driven rotating rod to rotate after rotating, the inner screening ring 201 drives an outer screening ring 202 to rotate through one of the material pushing plates 213 after rotating, and when the inner screening ring 201 rotates and the outer screening ring 202 synchronously rotate, lead powder is screened for multiple times, so that target granular lead powder is efficiently obtained;

the rough separation assembly 4 comprises a separation shell 401, a gas-permeable partition plate 404 and a split ring shell 408 are arranged in the separation shell 401, the gas-permeable partition plate 404 and the split ring shell 408 are fixedly connected with the inner wall of the separation shell 401, the gas-permeable partition plate 404 is arranged right below the split ring shell 408, the cross sections of two ends of the separation shell 401 are triangular, two ends of the separation shell 401 are provided with flow velocity sensors 8 in a penetrating manner, a separation fan 6 is arranged at the lowest point of the bottom end of the separation shell 401 in a penetrating manner, a gas filter layer 403 is arranged at the bottom end of the gas-permeable partition plate 404, a gas guide channel 402 is arranged at the bottom end of the gas filter layer 403, the gas guide channel 402 is formed by opening triangular blocks, the gas guide channel 402 is over against an air inlet of the gas guide channel 402 and used for uniformly distributing and guiding gas flowing through, the gas filter layer 403 filters the gas and prevents lead powder from entering the gas guide channel 402, and the gas filter layer 403 secondarily uniformly reduces the speed of the gas so that the gas flows upwards to enhance the controllability;

a return push plate 407 is slidably arranged at the top end of the air-permeable partition 404, a limit slide rod 406 and an electric screw rod 405 are sleeved on the return push plate 407, the electric screw rod 405 is in threaded connection with the return push plate 407, the return push plate 407 is in sliding connection with the limit slide rod 406, the electric screw rod 405 is arranged in parallel with the air-permeable partition 404, the electric screw rod 405 is rotatably arranged in the separation shell 401, the limit slide rod 406 is fixedly arranged in the separation shell 401, the electric screw rod 405 is used for driving the return push plate 407 to move rightwards and pushing lead materials to fall to a lead material particle outlet, an electric control valve is arranged at the lead material particle outlet to ensure the normal operation of equipment, the return push plate 407 returns after being pushed, the lead materials return to the feeding hollow rod 205 after passing through a purification outlet, and multiple air separation and purification are carried out on lead powder;

two ends in the split ring shell 408 are symmetrically and fixedly connected with connecting rods 409, one end, far away from the split ring shell 408, of each connecting rod 409 is fixedly connected with a fixing ring 410, a material opening is formed in the fixing ring 410 arranged at the top and is communicated with an inclined feeding pipe 414, a leakage plate is fixedly arranged in the fixing ring 410, a three-angle scattering hopper 411 is arranged between the leakage plate and the fixing ring 410 at the bottom, a scattering motor 413 is fixedly arranged at the center of the bottom surface of the fixing ring 410 at the bottom, an output shaft of the scattering motor 413 is fixedly connected with the three-angle scattering hopper 411, the outer end of the three-angle scattering hopper 411 is fixedly sleeved with scattering blades 412, a plurality of scattering blades 412 are arranged, the scattering blades 412 are distributed according to an annular array by taking the central axis of the three-angle scattering hopper 411 as the center, and the inclined feeding pipes 414 are respectively communicated with the thread conveyor 3 or the crescent conveying pipe 7;

the control panel comprises a data storage unit, a pneumatic operation unit, a processor and a dynamic execution unit;

working principle, when in use:

step one, continuously screening lead powder into a feeding hollow rod 205 through a screening assembly 2 to obtain lead powder with consistent particle size, then conveying the lead powder with consistent particle size into a rough separation assembly 4 through a threaded conveyor 3, and conveying the lead powder with consistent particle size and containing lead material particles and plastic particles into an inclined feeding pipe 414 of the rough separation assembly 4 through the threaded conveyor 3;

step two, after the lead powder enters the inclined feeding pipe 414, the lead powder flows to a material port through the inclined feeding pipe 414 and falls onto the triangular scattering hopper 411 through a leakage plate, the scattering motor 413 is started to work and drives the triangular scattering hopper 411 fixedly connected with an output shaft of the scattering motor to rotate, the triangular scattering hopper 411 is provided with a flow groove, the lead powder falls from the ring side of the triangular scattering hopper 411 and is uniformly scattered in the split ring shells 408 through centrifugal force, the split ring shells 408 are arranged in the middle of the separation shell 401, and meanwhile, the triangular scattering hopper 411 drives a plurality of scattering blades 412 fixed with the split ring shells to rotate after rotating, so that the lead powder is further scattered and is prevented from being extruded and agglomerated in the conveying process;

then, a centrifugal fan at the bottom of the rough separation assembly 4 is started to extract external air, the external air enters the bottom of the separation shell 401 through the flow velocity sensor 8, then the external air is guided by the gas guide channel 402 to be uniformly distributed on the bottom surface of the gas filter layer 403, impurities in the external air are filtered after the external air passes through the bottom surface of the gas filter layer 403, and upward flowing cleaning gas is formed through the air-permeable partition plate 404, the cleaning gas blows lighter plastic particles in the lead material to move upwards after flowing upwards, then the light plastic particles enter the crescent conveying pipe 7 through the flow velocity sensor 8, and meanwhile heavier lead material particles fall onto the surface of the air-permeable partition plate 404, so that the separation work of lead powder is realized;

in the process, the flow velocity sensor 8 arranged at the top end of the coarse separation component 4 induces the real-time outlet flow velocity in the process of generating the separated lead powder, and the flow velocity sensor 8 arranged at the bottom end of the coarse separation component 4 induces the real-time inlet flow velocity in the process of generating the separated lead powder;

step three, when plastic particles enter an inclined feeding pipe 414 in the fine separation component 5 through a crescent conveying pipe 7, the plastic particles flow to a material port through the inclined feeding pipe 414 and fall onto a three-angle scattering hopper 411 through a bushing, a scattering motor 413 is started to work and drives a three-angle scattering hopper 411 fixedly connected with an output shaft of the three-angle scattering hopper to rotate, the three-angle scattering hopper 411 is provided with a flow groove, lead powder falls down from the ring side of the three-angle scattering hopper 411 and is uniformly scattered in a split ring shell 408 through centrifugal force, the split ring shell 408 is arranged in the middle of the separation shell 401, the three-angle scattering hopper 411 rotates and drives a plurality of scattering blades 412 fixed with the three-angle scattering hopper to rotate to further collide with the plastic particles, then a separation fan at the bottom of the fine separation component 5 is started to extract external air to enter the bottom of the separation shell 401 through a flow rate sensor 8, then the external air is guided through a gas guide channel 402 to be uniformly distributed on the bottom of a gas filter layer 403, then impurities in the external air are filtered through the gas permeable partition 404 to form clean gas flowing upwards, and the plastic particles flow rate sensor 404 flows upwards, and the plastic particles are collected and flow rate is reduced, and the plastic particles flow rate sensor 404 flows upwards, and the plastic particles are purified and then flows out through the plastic particles are collected;

at this time, the flow velocity sensor 8 arranged at the top end of the fine separation component 5 senses the real-time outlet flow velocity in the process of purifying the plastic particles, and the flow velocity sensor 8 arranged at the bottom end of the fine separation component 5 senses the real-time inlet flow velocity in the process of purifying the plastic particles;

step four, in the process of separating lead powder and purifying plastic, the flow velocity sensor 8 sends the sensed real-time inlet flow velocity in the process of separating lead powder, the sensed real-time outlet flow velocity in the process of separating lead powder and the sensed real-time inlet flow velocity in the process of purifying plastic particles to the information storage unit for storage;

the method comprises the steps that a pneumatic operation unit obtains real-time inlet air flow rate in the lead powder separation process, real-time outlet air flow rate in the lead powder separation process and real-time inlet air flow rate in the plastic particle purification process in real time, then the real-time inlet air flow rates are respectively marked as QV0, QV1, SV0 and SV1, and then a rough separation material pushing factor A0 is obtained according to a formula A0= QV0-k1 × QV 1; obtaining a fine separation pushing factor A1 according to a formula A1= SV0-k2 SV 1;

the QV0 and the SV0 are constant values, when the QV1 or the SV1 is reduced, the lead particles falling on the surface of the air-permeable partition plate 404 are increased, air vents of the lead particles are blocked, and gas flow is not smooth; k1 and k2 are constants of the rough separation pushing factor A0 and the fine separation pushing factor A2, and the constants enable the calculated result to be closer to a true value;

whether the surface of the corresponding breathable partition plate 404 needs to be pushed or not is judged through the rough separation pushing factor A0 and the fine separation pushing factor A1;

when the rough separation material pushing factor A0 is larger than a preset value corresponding to the rough separation material pushing factor A, a rough separation material pushing signal is generated;

when the fine separation material pushing factor A1 is larger than a preset value corresponding to the fine separation material pushing factor A, a fine separation material pushing signal is generated;

otherwise, no control signal is generated; the generated rough separation material pushing signal or the fine separation material pushing signal is sent to a dynamic execution unit through a processor;

after receiving the rough separation pushing signal or the fine separation pushing signal, the dynamic execution unit immediately controls the electric screw rod 405 corresponding to the rough separation pushing signal to work, and the electric screw rod 405 drives the corresponding return push plate 407 to slide rightwards along the surface of the air-permeable partition plate 404 after working, so that the lead particles falling on the surface of the air-permeable partition plate 404 are pushed out of a lead particle outlet and recovered;

in the process, the power of the air separation fan and the screw conveyor 3 is reduced or the air separation fan and the screw conveyor 3 are temporarily closed under the adaptive control until the return push plate 407 returns, and the air separation fan and the screw conveyor 3 work normally;

step six, after the lead material particles are recovered, the lead material particles are introduced into the screening component 2 again, and then the processes of the step one to the step five are repeated, so that the purification process of the lead material particles is realized, and the processes of pretreatment and pre-regeneration of the lead material are realized;

by integrating the technical scheme, on the basis of screening and obtaining lead powder with consistent particle size, the invention carries out winnowing separation and purification on lead particles and plastic particles in the lead powder, and acquires parameters of corresponding airflow (gas) in real time in the process, and carries out real-time analysis and treatment on the parameters, thereby realizing the intelligent promotion of the work of recovering the lead particles, realizing the automatic operation process of recovering and purifying the lead particles, reducing the content and the quantity of components in the lead powder, improving the subsequent efficiency, reducing the complexity of the subsequent reaction, reducing the dosage of additives, reducing the resource consumption in the whole recovery process, and solving the problems of more complex reaction, more dosage of additives and lower efficiency of the reaction production of the regenerated lead caused by directly introducing mixed lead powder containing the lead particles, the plastic particles and the metal particles into a chemical reaction tank in the traditional production process of the regenerated lead.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (7)

1. A method for regenerating lead based on lead plaster in waste lead-acid batteries is characterized by comprising the following steps:

step one, screening to obtain target particles: after the lead powder enters the screening and purifying equipment, the lead powder enters the screening component (2) from a feeding hollow rod (205) of the screening and purifying equipment, the screening component (2) screens the lead powder for multiple times to obtain the lead powder with the consistent particle size, then the lead powder with the consistent particle size is conveyed into the rough separation component (4) through the threaded conveyor (3), and the lead powder with the consistent particle size and containing lead material particles and plastic particles enters an inclined feeding pipe (414) of the rough separation component (4) through the threaded conveyor (3);

step two, separating lead powder: pre-starting a centrifugal fan at the bottom of the coarse separation component (4) to extract external air and flow the external air to flow through the flow velocity sensor (8), then allowing the external air to enter from the bottom of the coarse separation component (4) and uniformly guide, distribute and filter the external air to obtain clean air blown upwards, uniformly dispersing lead powder in the middle of the coarse separation component (4), allowing the clean air to flow upwards and light plastic particles in the lead powder to flow through the flow velocity sensor (8) and enter the crescent conveying pipe (7), and simultaneously allowing heavy lead powder particles which are not blown in the lead powder to fall into the coarse separation component (4), wherein the real-time air inlet flow velocity in the lead powder separation process and the real-time air outlet flow velocity in the lead powder separation process are obtained;

step three, purifying plastic particles: when plastic particles enter the fine separation assembly (5) through the crescent conveying pipe (7), the plastic particles are uniformly sprayed at the middle part of the fine separation assembly, a separation fan at the bottom of the fine separation assembly (5) is started to extract external air and flow through the flow velocity sensor (8), then the external air enters from the bottom of the coarse separation assembly (4) and is uniformly guided, distributed and filtered to obtain clean and upward-blown clean air, the clean air flows upward and blows more plastic particles to flow upward and flow out through the flow velocity sensor (8) and is collected, and meanwhile, less lead particles fall onto the surface of the air-permeable partition plate (404), so that the purification work of the plastic particles is realized; at the moment, the flow velocity sensor (8) senses the real-time outlet flow velocity in the plastic particle purifying process and the real-time inlet flow velocity in the plastic particle purifying process;

step four, dynamically recovering lead material particles: in the process, the flow velocity sensor (8) sends the sensed real-time air inlet flow velocity in the lead powder separating process, the sensed real-time air outlet flow velocity in the lead powder separating process and the sensed real-time air inlet flow velocity in the plastic particle purifying process to the information storage unit for storage, and the information storage unit carries out analysis processing through the pneumatic operation unit, and respectively obtains a rough separation material pushing signal and a fine separation material pushing signal;

the generated rough separation material pushing signal and the fine separation material pushing signal are sent to a dynamic execution unit through a processor;

after receiving the rough separation pushing signal and the fine separation pushing signal, the dynamic execution unit controls the corresponding rough separation component (4) component or fine separation component (5) component to dynamically recover lead particles;

step five, purifying lead material particles: and re-conveying the dynamically recovered lead particles to the first step to the fourth step.

2. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 1, characterized in that screening purification equipment comprises a screening shell (1) and a control panel, a screening component (2) is rotationally arranged in the screening shell (1), the screening component (2) is respectively connected with a threaded conveyor (3), a coarse particle collecting box (9) and a fine particle collecting box (10) in a penetrating manner through pipelines, the threaded conveyor (3) is connected with a coarse separation component (4) in a penetrating manner, the top of the coarse separation component (4) is connected with a crescent conveying pipe (7) in a penetrating manner, one end, far away from the coarse separation component (4), of the crescent conveying pipe (7) is connected with a fine separation component (5) in a penetrating manner, the bottoms of the coarse separation component (4) and the fine separation component (5) are both connected with a separation fan (6) in a penetrating manner, flow velocity sensors (8) are respectively installed at air inlets and air outlets of the coarse separation component (4) and the fine separation component (5), and the coarse separation component (4) and the fine separation component (5) have the same structure as the fine separation component (5).

3. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 2, characterized in that the screening assembly (2) comprises an inner screening ring (201), the inner screening ring (201) is rotatably arranged in the screening housing (1), both ends of the inner screening ring (201) are abutted against the inner wall of the screening housing (1), the outer end of the inner screening ring (201) is provided with an outer screening ring (202), the outer screening ring (202) is abutted against the inner wall of the screening housing (1), the inner screening ring (201) is embedded with an inner screening section (203), the outer screening ring (202) is embedded with an outer screening section (204), one end center of the inner screening ring (201) is fixedly connected with a feeding hollow rod (205), one end of the feeding hollow rod (205) is rotated to extend to the outside of the screening housing (1) through the inner wall thereof, the outer screening ring (202) is arranged in a clearance with the inner screening ring (201), the outer ends of the outer screening ring (202) and the inner screening ring (201) are fixedly connected with a plurality of screening plates (213), one end of the inner screening plate (213) is connected with the inner screening plate (213), and the inner screening plate (213) is connected with the outer screening ring (201) and the screening plate (213), the material pushing plates (213) are distributed in an annular array by taking the ring center of the inner screening ring (201) as the center, and one end of the inner screening ring (201) is in transmission connection with a driving assembly.

4. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 3, characterized in that a driving assembly comprises a driven rotating rod (212), one end of the driven rotating rod (212) is fixedly connected with the center of one end of the inner screening ring (201), one end of the driven rotating rod (212), which is far away from the inner screening ring (201), extends to the outside of the inner screening ring (201) through the inner wall of the inner screening ring through the rotation of a bearing and is fixedly sleeved with a driven gear (211), the outer end of the driven gear (211) is engaged and sleeved with a transmission toothed chain (210), the inner end of the transmission toothed chain (210) is engaged and sleeved with a driving gear (209), the inner end of the driving gear (209) is fixedly sleeved with a driving rotating rod (207), one end of the driving rotating rod (207) is rotatably connected with a power box (206) through a bearing, the other end of the driving rotating rod (207) is rotatably connected with the outer wall of the inner screening ring (201) through a bearing, the power box (206) is fixedly arranged at the outer end of the inner screening ring (201), and the other end of the screening motor (208) is fixedly connected with an output shaft (207).

5. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 1, wherein the rough separation assembly (4) comprises a separation shell (401), a breathable partition plate (404) is arranged in the separation shell (401), the breathable partition plate (404) and a split ring shell (408) are fixedly connected with the inner wall of the separation shell (401), the breathable partition plate (404) is arranged under the split ring shell (408), the sections of the two ends of the separation shell (401) are triangular, flow velocity sensors (8) are arranged at the two ends of the separation shell (401) in a penetrating manner, a separation fan (6) is arranged at the lowest point of the bottom end of the separation shell (401) in a penetrating manner, a gas filtering layer (403) is arranged at the bottom end of the breathable partition plate (404), a gas guide channel (402) is arranged at the bottom end of the gas filtering layer (403), a return push plate (407) is arranged at the top end of the breathable partition plate (404) in a sliding manner, a limit slide rod (406) and an electric lead screw (405) are sleeved on the electric lead screw (405), the electric lead screw (405) and the push plate (407) is connected with the electric lead screw (405) in a sliding manner, and the electric lead screw (405) is arranged in a parallel manner, the limiting sliding rod (406) is fixedly arranged in the separating shell (401), and the middle of the separating shell (401) is provided with an even spraying assembly.

6. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 5, characterized in that the uniform spraying component comprises a split ring shell (408), the split ring shell (408) is fixedly arranged in the middle of the separation shell (401), one end of the connecting rod (409) far away from the split ring shell (408) is fixedly connected with a fixed ring (410), the fixed ring (410) arranged at the top is provided with a material port, the material port is in through connection with an inclined feeding pipe (414), a leakage plate is fixedly arranged in the fixed ring (410), a three-angle scattering hopper (411) is arranged between the leakage plate and the fixed ring (410) at the bottom, a plurality of scattering motors (413) are fixedly arranged at the center of the bottom surface of the fixed ring (410) at the bottom, the output shafts of the scattering motors (413) are fixedly connected with the three-angle scattering hopper (411), the scattering fixed sleeve of the three-angle hopper (411) is provided with scattering blades (412), and the scattering blades (412) are distributed according to an annular array by taking the three-angle scattering hopper (411) as a central axis.

7. The method for regenerating lead based on lead plaster in waste lead-acid batteries according to claim 2, characterized in that the control panel comprises a data storage unit, a pneumatic operation unit, a processor and a dynamic execution unit, wherein the analysis and processing procedures of the pneumatic operation unit are as follows:

the method comprises the steps that a pneumatic operation unit obtains real-time inlet air flow rate in the lead powder separation process, real-time outlet air flow rate in the lead powder separation process and real-time inlet air flow rate in the plastic particle purification process in real time, then the real-time inlet air flow rates are respectively marked as QV0, QV1, SV0 and SV1, and then a rough separation material pushing factor A0 is obtained according to a formula A0= QV0-k1 × QV 1; obtaining a fine separation pushing factor A1 according to a formula A1= SV0-k2 SV 1; wherein QV0 and SV0 are constant values, k1 and k2;

when the rough separation material pushing factor A0 is larger than a preset value corresponding to the rough separation material pushing factor A, a rough separation material pushing signal is generated; when the fine separation material pushing factor A1 is larger than a preset value corresponding to the fine separation material pushing factor A, a fine separation material pushing signal is generated; otherwise, no control signal is generated;

and the generated rough separation material pushing signal or the fine separation material pushing signal is sent to the dynamic execution unit through the processor.

Images