CN115837394B - Solid waste reduction recycling device and method for mine environment treatment - Google Patents

Solid waste reduction recycling device and method for mine environment treatment Download PDF

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Publication number
CN115837394B
CN115837394B CN202310123771.9A CN202310123771A CN115837394B CN 115837394 B CN115837394 B CN 115837394B CN 202310123771 A CN202310123771 A CN 202310123771A CN 115837394 B CN115837394 B CN 115837394B
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solid waste
crushing
curing
cylinder
pipe
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CN115837394A (en
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韩伟江
项赟
温晓晴
奚蓉
杨子仪
黄泰宇
邱郴
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South China Institute of Environmental Science of Ministry of Ecology and Environment
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South China Institute of Environmental Science of Ministry of Ecology and Environment
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Abstract

The invention discloses a solid waste reduction recovery treatment device and a method for mine environment treatment, wherein the device comprises a solid waste crushing component, a metal ion exchange component and a solidification component which are arranged on a bottom plate; the solid waste crushing assembly comprises a main crushing member, an auxiliary crushing mesh screen sleeved outside the main crushing member, an outer shell sleeved outside the auxiliary crushing mesh screen and connected with the bottom plate, and a crushing motor for providing power for the main crushing member; the curing assembly comprises a curing cylinder, a filter cylinder arranged at the upper end of the curing cylinder, an inner cylinder sleeved in the filter cylinder, a pressing plate in sliding clamping connection with the filter cylinder and a pushing motor for providing power for the pressing plate, and a material guide pipe penetrating through the curing cylinder is arranged on the pressing plate; the device provided by the invention can crush, extract and solidify the mine solid waste, and improves the reduction treatment effect of the mine solid waste.

Description

Solid waste reduction recycling device and method for mine environment treatment
Technical Field
The invention relates to the technical field of solid waste treatment, in particular to a solid waste reduction recycling device and method for mine environment treatment.
Background
The mountain area of China is wide, including mountain land, rugged plateau and hills, and occupies about two thirds of the land area of China, and the mountain area has great advantages in mining, but if the mining area is unfavorable in protecting environment, geological disasters are easy to be bowed; the damage to the environment due to mining is divided into: geological damage, environmental pollution and landscape damage. The mine solid waste pollution is pollution caused by mine solid waste, and comprises a large amount of waste stones generated by strip mine stripping and pit mining, gangue generated by coal mining, tailings generated by ore dressing, slag generated by smelting and the like; and along with the development of society, the importance of ecological environment is gradually highlighted, and comprehensive treatment of the abandoned mine environment is urgent.
However, the equipment for treating the mine solid waste in the prior art is generally various in variety, different in mechanism and scattered and not matched, the production energy consumption is high, the mine solid waste is difficult to comprehensively utilize, and the socialization and resource utilization efficiency of the mine solid waste are seriously affected.
Disclosure of Invention
The invention provides a solid waste reduction recovery treatment device and a method for mine environment treatment aiming at the technical problems.
The technical scheme of the invention is as follows: the solid waste reduction recovery treatment device for mine environment treatment comprises a solid waste crushing assembly arranged on a bottom plate through a bracket, a metal ion exchange assembly arranged on the bottom plate and connected with the solid waste crushing assembly through a pipeline, and a curing assembly arranged on the bottom plate and connected with the metal ion exchange assembly through a conduit;
the solid waste crushing assembly comprises a main crushing member rotationally clamped on the bracket through a rotating shaft, an auxiliary crushing mesh screen sleeved outside the main crushing member, both ends of which are rotationally clamped on the rotating shaft, an outer shell sleeved outside the auxiliary crushing mesh screen and fixedly connected with the bottom plate through a cushion block, and a crushing motor arranged on the bracket, and the output end of which is fixedly connected with the rotating shaft; a plurality of crushing bulges are distributed on the inner wall of the auxiliary crushing mesh screen at equal intervals, the auxiliary crushing mesh screen is connected with the outer shell, one end of the auxiliary crushing mesh screen is provided with a feeding hole, the outer shell is provided with a feeding hopper communicated with the feeding hole, and the top of the outer shell is provided with a spray pipe; a water inlet pipe communicated with the water spray pipe is arranged at the top end of the outer shell;
the metal ion exchange assembly comprises an exchange box connected with the outer shell through a pipeline and a resin carrier arranged inside the exchange box; the top of the exchange box is provided with an acid injection pipe, and the lower end of the side wall of the exchange box is provided with a liquid discharge pipe; the resin carrier is provided with ion exchange resin;
the curing assembly comprises a curing cylinder connected with the bottom plate, a filter cylinder arranged at the upper end of the curing cylinder and connected with the lower end of the side wall of the exchange box through a conduit, an inner cylinder sleeved inside the filter cylinder and fixedly connected with the inner top of the filter cylinder and the upper end surface of the curing box respectively, a pressing plate in the filter cylinder in a sliding clamping manner, and a pushing motor arranged at the upper end of the curing cylinder and positioned inside the inner cylinder; the side wall of the curing cylinder is movably hinged with a sealing cover; a peristaltic pump is arranged at the joint of the filter cartridge and the exchange box, a feeding pipe communicated with the inside of the inner cylinder is arranged at the top end of the filter cartridge, a drain pipe is arranged at the lower end of the side wall of the filter cartridge, and a water outlet groove is arranged at the upper position of the side wall of the inner cylinder; a material guide pipe penetrating through the curing cylinder is arranged on the pressing plate, and an electric control valve is arranged on the material guide pipe; the output shaft of the pushing motor is provided with a pushing screw rod which is in threaded connection with the pressing plate and is rotationally clamped with the filter cartridge, and the pushing screw rod is sleeved with a stirring disc.
Further, one end of the auxiliary crushing mesh screen is provided with a shaft sleeve which is sleeved on the rotating shaft and is rotationally clamped with the outer shell, the shaft sleeve is provided with a connecting belt wheel, the bottom plate is provided with an auxiliary motor, and the output shaft of the auxiliary motor is provided with a main belt wheel which is connected with the connecting belt wheel through a belt;
description: the shaft sleeve is driven to rotate by the auxiliary motor, so that the auxiliary crushing mesh screen rotates in the outer shell, and the crushing efficiency of mine solid waste is improved by utilizing the relative motion of the auxiliary crushing mesh screen and the main crushing member.
Further, the main crushing member comprises two connecting frames which are rotationally clamped inside the auxiliary crushing mesh screen and are fixedly connected with the two rotating shafts respectively, and a plurality of crushing rollers which are rotationally clamped between the two connecting frames through the connecting shafts;
description: when the pivot is rotatory, drive two link rotations to make each crushing roller rotatory at supplementary crushing mesh screen, the connecting axle on each crushing roller is rotatory between two link simultaneously, thereby realizes the solid useless roll crushing in mine, has further improved the crushing effect of solid useless in mine.
Further, sliding clamping grooves are formed in the two connecting frames, sliding sleeves which are in sliding clamping connection with the sliding clamping grooves at corresponding positions are rotatably clamped at the two ends of each connecting shaft, pushing rods which are in sliding clamping connection with the inside of the connecting frames are fixedly arranged on each sliding sleeve, and reset springs which are in abutting connection with the inner walls of the connecting frames are sleeved on each pushing rod; a positioning tube is arranged between the two connecting frames, two ends of the inside of the positioning tube are respectively and slidably clamped with a ball head which is abutted against each pushing rod at the corresponding position, an adjusting motor is arranged at the center position inside the positioning tube, and output shafts at the two ends of the adjusting motor are respectively provided with an adjusting screw rod in threaded connection with the two ball heads;
description: in the rotating process of the connecting frame, the adjusting motor is utilized to drive the adjusting screw rod to rotate, so that the two ball heads are far away from each other after sliding along the inner wall of the positioning pipe under the action of the adjusting screw rod, the pushing rods on the sliding sleeves move along the sliding clamping grooves under the action of the ball heads, the connecting shafts and the crushing rollers are driven to move, the distance between the crushing rollers and the auxiliary crushing mesh screen is reduced, and the deep crushing treatment of mine solid wastes is facilitated.
Further, one end of each sliding clamping groove far away from the positioning pipe is provided with a locking pin, and the sliding sleeve and the rotating shaft are provided with locking grooves which can be clamped with the locking pins;
description: when the sliding sleeve slides to the end part of the movable clamping groove, the locking pin is inserted into the locking groove on the rotating shaft, so that the crushing roller stops self-transmission when rotating along with the connecting frame, and the friction effect between the crushing roller and the auxiliary crushing mesh screen is utilized to carry out fine grinding treatment on mine solid waste, so that the mine solid waste is crushed more thoroughly.
Further, a plurality of curing cavities are arranged in the curing cylinder, the positions and the number of the sealing covers are in one-to-one correspondence with the curing cavities, the material guiding pipes are arranged in a plurality, the material guiding pipes are in one-to-one correspondence with the upper and lower positions of the curing cavities, and the pressing plate is provided with a deposition groove;
description: by arranging the deposition groove on the pressing plate, the material in the inner cylinder can enter the curing cylinder through the feeding pipe, and the material is prevented from being accumulated in the inner cylinder to be condensed; through setting up several curing chamber in curing section of thick bamboo inside, be convenient for transfer and store the material after the solidification.
Further, an infrared heating pipe is arranged at the inner top of the curing cylinder, a stripper plate is slidably clamped in each curing cavity, ejector rods are arranged on the lower bottom surface of each stripper plate, a demolding rotary table fixedly connected with an output shaft of the pushing motor is rotatably clamped in the inner bottom of the curing cylinder, and wedge-shaped sliding blocks which correspond to the upper and lower positions of each ejector rod one by one are arranged on the upper end surface of the demolding rotary table;
description: by arranging the infrared heating pipe, the curing period of materials in the curing cylinder is shortened, and the production efficiency is improved; through at stripper plate and drawing of patterns carousel, utilize pushing motor to drive drawing of patterns carousel rotation to make each wedge slider and ejector pin contact back with the stripper plate jack-up, be favorable to improving the drawing of patterns effect of solidification material.
Further, a plurality of stirring discs are arranged, the stirring disc at the uppermost end of the pushing screw is rotationally clamped with the pushing screw, the other stirring discs are in sliding clamping with the pushing screw, and compression springs sleeved on the pushing screw are arranged between the stirring discs;
description: when the clamp plate moves upwards along promoting the lead screw, each agitator disk is close to each other, and when the clamp plate moved down along promoting the lead screw, each agitator disk kept away from each other under compression spring's effect to make the clamp plate remove the in-process, the agitator disk can stir the mixture to the inside each position material of inner tube.
Further, two adjacent stirring discs are provided with stirring blades with opposite inclination directions;
description: through setting up the stirring flabellum that the inclination is opposite on the agitator disk, guaranteed the intensive mixing of solid waste slurry and portland cement to the utilization ratio of solidification material has been improved.
The invention also provides a solid waste reduction recycling method for mine environment treatment, which comprises the following steps:
s1, respectively connecting a crushing motor, a pushing motor and a peristaltic pump with an external power supply;
s2, leading mine solid waste into the outer shell through a feed hopper, enabling the mine solid waste to enter a position between an auxiliary crushing mesh screen and a main crushing member through a feed hole on the auxiliary crushing mesh screen, then starting a crushing motor, driving the main crushing member to rotate through a rotating shaft by using the crushing motor, crushing the mine solid waste by using the main crushing member and the auxiliary crushing mesh screen, and introducing clear water into a spray pipe through a water inlet pipe in the crushing process, so that mine solid waste powder and the clear water are mixed according to a mass ratio of 1:4-6, and forming solid waste slurry;
s3, introducing the solid waste slurry obtained in the step S2 into an exchange box through a guide pipe, and carrying out adsorption treatment on heavy metal ions in the solid waste slurry by utilizing ion exchange resin for 30-45 min; then a peristaltic pump is started, solid waste slurry is led into the inner cylinder, finally hydrochloric acid solution is injected into the exchange box through an acid injection pipe on the exchange box to elute the ion exchange resin, and the eluent is discharged out of the exchange box through a liquid discharge pipe to extract heavy metal ions in the eluent; the volume ratio of the hydrochloric acid solution to the ion exchange resin is 3-5:1, and the volume concentration of the hydrochloric acid solution is 15-25%;
s4, starting a pushing motor, driving a pushing screw rod to rotate by using the pushing motor, enabling a pressing plate to move upwards along the inner wall of the inner cylinder under the action of the pushing screw rod, enabling solid waste slurry to move upwards along the inner cylinder under the action of the pressing plate, enabling water in the solid waste slurry to enter a region between the filter cylinder and the inner cylinder through a water outlet groove on the inner cylinder, and finally discharging the water through a sewage drain pipe and passing through the filter cylinder; finally, silicate cement is added into the inner cylinder through a feeding pipe, and the silicate cement and the dehydrated solid waste slurry are fully mixed by utilizing a stirring disc, so that a mixture of the solid waste slurry and the silicate cement is obtained; wherein the mass ratio of the silicate cement to the dehydrated solid waste slurry is 1:5-7;
s5, opening an electric control valve on the material guide pipe to enable the mixture of the solid waste slurry and the silicate cement in the inner cylinder to enter the curing cylinder; and (3) contacting water in the silicate cement and the solid waste slurry, so that hydration reaction occurs to solidify the mixture of the solid waste slurry and the silicate cement, the solidification time is controlled to be 12-15 h, and finally, the solidified solid waste slurry is transferred through a sealing cover.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention realizes the reduction treatment of the mine solid waste by crushing, extracting and solidifying the mine solid waste, and the extracted heavy metal ions not only can be reused and improve the social and economic benefits, but also can avoid the pollution of heavy metal ion migration to soil and groundwater in the process of piling the mine solid waste; the crushed mine solid waste and the silicate cement are mixed and cured, so that the resource utilization of the mine solid waste is realized, and the construction cost is reduced;
secondly, the crushing roller capable of moving and locking on the connecting frame is arranged, so that the mine solid waste can be subjected to classified crushing treatment, the crushed mine solid waste can be subjected to fine grinding treatment, the crushing efficiency of the mine solid waste is improved, and meanwhile, the extraction efficiency of heavy metal ions in the mine solid waste is also improved;
thirdly, the main crushing component and the auxiliary crushing mesh screen which move relatively in the outer shell are utilized to continuously crush and crush the mine solid waste, so that the crushing efficiency of the mine solid waste is improved, the energy consumption of equipment is reduced, the cost input of the mine solid waste treatment is reduced, and the mine environment treatment is promoted.
Drawings
FIG. 1 is a longitudinal cross-sectional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the solid waste pulverizing unit of the present invention;
FIG. 4 is a schematic illustration of the connection of the primary crushing member to the secondary crushing screen of the present invention;
FIG. 5 is a schematic view of the connection of the pulverizing rolls to the connecting frame of the present invention;
FIG. 6 is a schematic illustration of the connection of a sliding sleeve and a sliding card slot according to the present invention;
FIG. 7 is a schematic structural view of the curing assembly of the present invention;
FIG. 8 is a schematic view of the internal structure of the curing cylinder of the present invention;
FIG. 9 is a schematic view of the structure of the stripper plate of the present invention;
wherein, the liquid crystal display device comprises a liquid crystal display device, 1-bottom plate, 2-solid waste pulverizing module, 20-bracket, 21-main pulverizing member, 210-rotation shaft, 211-connection frame, 2110-sliding clamping groove, 212-connection shaft, 2120-sliding sleeve, 2121-push rod, 2122-return spring, 213-pulverizing roller, 214-positioning tube, 2140-ball head, 215-adjusting motor, 2150-adjusting screw, 216-locking pin, 217-locking groove, 22-auxiliary pulverizing mesh screen, 220-pulverizing protrusion, 221-feeding hole, 222-shaft sleeve, 2220-connection pulley, 23-outer shell, 230-cushion block, 231-feed hopper, 232-spray pipe, 24-pulverizing motor, 25-auxiliary motor 250-main belt wheel, 3-metal ion exchange component, 30-exchange box, 300-acid injection pipe, 301-drain pipe, 31-resin carrier, 4-curing component, 40-curing cylinder, 400-sealing cover, 401-curing cavity, 402-infrared heating pipe, 41-filter cartridge, 410-feeding pipe, 411-blow-down pipe, 42-inner cylinder, 420-water outlet tank, 43-pressing plate, 430-material guide pipe, 431-depositing tank, 44-pushing motor, 440-pushing screw, 45-peristaltic pump, 46-stirring disk, 460-compression spring, 461-stirring blade, 47-stripper plate, 470-ejector rod, 471-stripping turntable, 472-wedge-shaped slide block.
Detailed Description
Example 1: the solid waste reduction recovery treatment device for mine environment treatment as shown in fig. 1 and 2 comprises a solid waste crushing assembly 2 arranged on a bottom plate 1 through a bracket 20, a metal ion exchange assembly 3 arranged on the bottom plate 1 and connected with the solid waste crushing assembly 2 through a pipeline, and a solidification assembly 4 arranged on the bottom plate 1 and connected with the metal ion exchange assembly 3 through a conduit;
as shown in fig. 1 and 3, the solid waste crushing assembly 2 comprises a main crushing member 21 rotatably clamped on a bracket 20 through a rotating shaft 210, an auxiliary crushing mesh screen 22 sleeved outside the main crushing member 21 and rotatably clamped on the rotating shaft 210 at both ends, an outer shell 23 sleeved outside the auxiliary crushing mesh screen 22 and fixedly connected with a bottom plate 1 through a cushion block 230, and a crushing motor 24 arranged on the bracket 20 and fixedly connected with the rotating shaft 210 at the output end; the main crushing member 21 adopts the existing ore crushing roller; a plurality of crushing protrusions 220 are equidistantly distributed on the inner wall of the auxiliary crushing mesh screen 22, the auxiliary crushing mesh screen 22 is connected with the outer shell 23, a feeding hole 221 is formed in one end of the auxiliary crushing mesh screen 22, a feeding hopper 231 communicated with the feeding hole 221 is arranged on the outer shell 23, and a water spraying pipe 232 is arranged at the inner top of the outer shell 23; the top end of the outer shell 23 is provided with a water inlet pipe communicated with the water spraying pipe 232;
as shown in fig. 1 and 2, the metal ion exchange module 3 includes an exchange tank 30 connected to the outer case 23 by a pipe, and a resin carrier 31 provided inside the exchange tank 30; the top of the exchange box 30 is provided with an acid injection pipe 300, and the lower end of the side wall of the exchange box 30 is provided with a liquid discharge pipe 301; the resin carrier 31 is provided with ion exchange resin, and the ion exchange resin is gel-type acrylic resin;
as shown in fig. 1, 2 and 7, the curing assembly 4 comprises a curing cylinder 40 connected with the bottom plate 1, a filter cylinder 41 arranged at the upper end of the curing cylinder 40 and connected with the lower end of the side wall of the exchange box 30 through a conduit, an inner cylinder 42 sleeved inside the filter cylinder 41 and fixedly connected with the inner top of the filter cylinder 41 and the upper end surface of the curing box 40 respectively, a pressing plate 43 in sliding clamping connection with the inside of the filter cylinder 41, and a pushing motor 44 arranged at the upper end of the curing cylinder 40 and positioned inside the inner cylinder 42; the curing cylinder 40 is hollow, and a sealing cover 400 is movably hinged on the side wall of the curing cylinder 40; peristaltic pump 45 is arranged at the joint of the filter cartridge 41 and the exchange box 30, a feeding pipe 410 communicated with the inside of the inner cylinder 42 is arranged at the top end of the filter cartridge 41, a drain pipe 411 is arranged at the lower end of the side wall of the filter cartridge 41, and a water outlet groove 420 is arranged at the upper position of the side wall of the inner cylinder 42; the pressing plate 43 is provided with a material guide pipe 430 penetrating through the curing cylinder 40, and the material guide pipe 430 is provided with an electric control valve; the output shaft of the pushing motor 44 is provided with a pushing screw rod 440 which is in threaded connection with the pressing plate 43 and is rotationally clamped with the filter cartridge 41, and the pushing screw rod 440 is sleeved with a stirring disk 46.
Example 2: this example describes a method for performing reduction recovery treatment of solid waste using the apparatus of example 1, comprising the steps of:
s1, respectively connecting a crushing motor 24, a pushing motor 44 and a peristaltic pump 45 with an external power supply;
s2, leading mine solid waste into the outer shell 23 through a feed hopper 231, enabling the mine solid waste to enter a space between an auxiliary crushing mesh screen 22 and a main crushing member 21 through a feed hole 221 on the auxiliary crushing mesh screen 22, then starting a crushing motor 24, driving the main crushing member 21 to rotate through a rotating shaft 210 by using the crushing motor 24, crushing the mine solid waste by using the main crushing member 21 and the auxiliary crushing mesh screen 22, and introducing clear water into a spray pipe 232 through a water inlet pipe in the crushing process, so that mine solid waste powder and clear water are mixed according to a mass ratio of 1:4 to form solid waste slurry;
s3, introducing the solid waste slurry obtained in the step S2 into an exchange box 30 through a guide pipe, and carrying out adsorption treatment on heavy metal ions in the solid waste slurry for 30min by utilizing ion exchange resin; then a peristaltic pump 45 is started, solid waste slurry is led into the inner cylinder 42, finally hydrochloric acid solution is injected into the exchange box 30 through an acid injection pipe 300 on the exchange box 30 to elute the ion exchange resin, and eluent is discharged out of the exchange box 30 through a liquid discharge pipe 301 to extract heavy metal ions in the eluent; wherein, the volume ratio of the hydrochloric acid solution to the ion exchange resin is 3:1, and the volume concentration of the hydrochloric acid solution is 15%;
s4, starting a pushing motor 44, driving a pushing screw rod 440 to rotate by using the pushing motor 44, enabling a pressing plate 43 to move upwards along the inner wall of the inner cylinder 42 under the action of the pushing screw rod 440, enabling solid waste slurry to move upwards along the inner cylinder 42 under the action of the pressing plate 43, enabling water in the solid waste slurry to enter a region between the filter cylinder 41 and the inner cylinder 42 through a water outlet groove 420 on the inner cylinder 42, and finally discharging the filter cylinder 41 through a drain pipe 411; finally, silicate cement is added into the inner cylinder 42 through the feeding pipe 410, and the silicate cement and the dehydrated solid waste slurry are fully mixed by using the stirring disk 46, so that a mixture of the solid waste slurry and the silicate cement is obtained; wherein, the mass ratio of the silicate cement to the dehydrated solid waste slurry is 1:5;
s5, opening an electric control valve on the material guide pipe 430, enabling the mixture of the solid waste slurry and the silicate cement in the inner barrel 42 to enter the curing barrel 40, enabling the silicate cement to contact with moisture in the solid waste slurry, enabling the mixture of the solid waste slurry and the silicate cement to be cured through hydration reaction, controlling the curing time to be 12 hours, and finally transferring the cured solid waste slurry through the sealing cover 400.
Example 3: this embodiment differs from embodiment 2 in that:
in the step S2, mixing mine solid waste powder and clean water according to a mass ratio of 1:6;
in the step S3, heavy metal ions in the solid waste slurry are adsorbed by utilizing ion exchange resin for 45min; the volume ratio of the hydrochloric acid solution to the ion exchange resin is 5:1, and the volume concentration of the hydrochloric acid solution is 25%;
in the step S4, the mass ratio of the silicate cement to the dehydrated solid waste slurry is 1:7;
in step S5, the curing time is controlled to 15h.
Example 4: this embodiment differs from embodiment 1 in that:
as shown in fig. 3, one end of the auxiliary crushing mesh screen 22 is provided with a shaft sleeve 222 sleeved on the rotating shaft 210 and rotationally clamped with the outer casing 23, a connecting belt pulley 2220 is arranged on the shaft sleeve 222, an auxiliary motor 25 is arranged on the bottom plate 1, and a main belt pulley 250 connected with the connecting belt pulley 2220 through a belt is arranged on an output shaft of the auxiliary motor 25.
Example 5: this example describes a method for performing reduction recovery treatment of solid wastes using the apparatus of example 4, which differs from example 2 in that:
in step S2, the auxiliary motor 25 is connected to an external power source and turned on, and the shaft sleeve 222 is rotated by the auxiliary motor 25, so that the auxiliary crushing screen 22 and the main crushing member 21 are rotated relatively inside the outer case 23.
Example 6: this embodiment differs from embodiment 1 in that:
as shown in fig. 3, 4, 5, and 6, the main crushing member 21 includes two connection frames 211 rotatably clamped inside the auxiliary crushing mesh screen 22 and fixedly connected with the two rotation shafts 210, respectively, and 4 crushing rollers 213 rotatably clamped between the two connection frames 211 through the connection shafts 212; the two connecting frames 211 are respectively provided with 4 sliding clamping grooves 2110, two ends of each connecting shaft 212 are respectively rotatably clamped with sliding sleeves 2120 which are in sliding clamping connection with the sliding clamping grooves 2110 at corresponding positions, each sliding sleeve 2120 is fixedly provided with a push rod 2121 which is in sliding clamping connection with the inside of the connecting frame 211, and each push rod 2121 is sleeved with a reset spring 2122 which is in abutting connection with the inner wall of the connecting frame 211; a positioning tube 214 is arranged between the two connecting frames 211, two ends inside the positioning tube 214 are respectively and slidably clamped with a ball head 2140 which is abutted against each push rod 2121 at the corresponding position, an adjusting motor 215 is arranged at the center position inside the positioning tube 214, and adjusting screw rods 2150 which are in threaded connection with the two ball heads 2140 are respectively arranged on output shafts at two ends of the adjusting motor 215; each sliding clamping groove 2110 is provided with a locking pin 216 at one end far away from the positioning tube 214, and the sliding sleeve 2120 and the rotating shaft 210 are provided with locking grooves 217 which can be clamped with the locking pins 216.
Example 7: this example describes a method for performing reduction recovery treatment of solid wastes using the apparatus of example 6, which is different from example 2 in that:
in step S2, when the rotation shaft 210 rotates, the two connection frames 211 are driven to rotate, so that each crushing roller 213 rotates in the auxiliary crushing screen 22, and at the same time, the connection shaft 212 on each crushing roller 213 rotates between the two connection frames 211; the adjusting motor 215 is connected with an external power supply and is started, the adjusting motor 215 is utilized to drive the adjusting screw 2150 to rotate in the rotating process of the connecting frame 211, so that the two ball heads 2140 are far away from each other after sliding along the inner wall of the positioning pipe 214 under the action of the adjusting screw 2150, the push rod 2121 on each sliding sleeve 2120 moves along the sliding clamping groove 2110 under the action of the ball heads 2140, the connecting shaft 212 and the crushing roller 213 are driven to move, the distance between each crushing roller 213 and the auxiliary crushing mesh screen 22 is reduced, the mine solid waste is subjected to deep crushing treatment, and when the sliding sleeve 2120 slides to the end part of the movable clamping groove 2110, the locking pin 216 is inserted into the locking groove 217 on the rotating shaft 210, so that the crushing roller 213 stops self-transmission when rotating along with the connecting frame 211, and the mine solid waste is subjected to fine grinding treatment by the friction action between the crushing roller 213 and the auxiliary crushing mesh screen 22.
Example 8: this embodiment differs from embodiment 1 in that:
as shown in fig. 7, 8 and 9, 4 curing chambers 401 are arranged in the curing cylinder 40, the positions and the number of the sealing covers 400 are in one-to-one correspondence with the curing chambers 401, 4 guide pipes 430 are arranged, the guide pipes 430 are in one-to-one correspondence with the curing chambers 401, and a deposition groove 431 is arranged on the pressing plate 43; the top is provided with infrared heating pipe 402 in the curing section of thick bamboo 40, and each curing chamber 401 is inside to slide the joint and is provided with stripper plate 47, and the bottom surface all is provided with ejector pin 470 under each stripper plate 47, and the interior bottom rotation joint of curing section of thick bamboo 40 has the drawing of patterns carousel 471 with the output shaft fixed connection of pushing motor 44, and the drawing of patterns carousel 471 up end is provided with wedge slider 472 with the upper and lower position one-to-one of each ejector pin 470.
Example 9: this example describes a method for performing reduction recovery treatment of solid wastes using the apparatus of example 8, which differs from example 2 in that:
in step S5, the mixture of the solid waste slurry and the silicate cement in the inner cylinder 42 enters the corresponding curing cavity 401 through each material guiding pipe 430, and the material is heated by the infrared heating pipe 402; the demoulding turntable 471 is driven to rotate by the pushing motor 44, so that after each wedge-shaped sliding block 472 is contacted with the ejector rod 470, the demoulding plate 47 is lifted upwards, and the fast demoulding of the solidified material is realized.
Example 10: this embodiment differs from embodiment 1 in that:
as shown in fig. 7, 3 stirring discs 46 are provided, the stirring disc 46 at the uppermost end of the pushing screw rod 440 is rotationally clamped with the pushing screw rod 440, each other stirring disc 46 is slidably clamped with the pushing screw rod 440, and compression springs 460 sleeved on the pushing screw rod 440 are arranged between each stirring disc 46; two adjacent stirring discs 46 are provided with stirring blades 461 with opposite inclination directions;
example 11: this example describes a method for performing reduction recovery treatment of solid wastes by using the apparatus of example 10, which is different from example 2 in that:
in step S4, when the pressing plate 43 moves upward along the pushing screw 440, the stirring discs 46 are close to each other, and when the pressing plate 43 moves downward along the pushing screw 440, the stirring discs 46 are far away from each other under the action of the compression spring 460, and the materials at each position inside the inner cylinder 42 are stirred and mixed.
It should be noted that, the adjusting motor 215, the crushing motor 24, the auxiliary motor 25, the infrared heating tube 402, the pushing motor 44, the peristaltic pump 45 and the electric control valve all adopt the prior art, and are not limited herein, and corresponding products can be selected according to actual needs.

Claims (9)

1. The solid waste reduction recovery treatment device for mine environment treatment is characterized by comprising a solid waste crushing assembly (2) arranged on a bottom plate (1) through a bracket (20), a metal ion exchange assembly (3) arranged on the bottom plate (1) and connected with the solid waste crushing assembly (2) through a pipeline, and a curing assembly (4) arranged on the bottom plate (1) and connected with the metal ion exchange assembly (3) through a conduit;
the solid waste crushing assembly (2) comprises a main crushing member (21) rotationally clamped on a bracket (20) through a rotating shaft (210), an auxiliary crushing mesh screen (22) sleeved outside the main crushing member (21) and rotationally clamped on the rotating shaft (210) at both ends, an outer shell (23) sleeved outside the auxiliary crushing mesh screen (22) and fixedly connected with a bottom plate (1) through a cushion block (230), and a crushing motor (24) arranged on the bracket (20) and fixedly connected with the rotating shaft (210) at the output end; a plurality of crushing protrusions (220) are distributed on the inner wall of the auxiliary crushing mesh screen (22) at equal intervals, the auxiliary crushing mesh screen (22) is connected with an outer shell (23), a feeding hole (221) is formed in one end of the auxiliary crushing mesh screen (22), a feeding hopper (231) communicated with the feeding hole (221) is arranged on the outer shell (23), a spray pipe (232) is arranged at the inner top of the outer shell (23), and a water inlet pipe communicated with the spray pipe (232) is arranged at the top end of the outer shell (23);
the metal ion exchange assembly (3) comprises an exchange box (30) connected with the outer shell (23) through a pipeline and a resin carrier (31) arranged inside the exchange box (30); an acid injection pipe (300) is arranged at the top of the exchange box (30), and a liquid discharge pipe (301) is arranged at the lower end of the side wall of the exchange box (30); the resin carrier (31) is provided with ion exchange resin;
the curing assembly (4) comprises a curing cylinder (40) connected with the bottom plate (1), a filter cylinder (41) arranged at the upper end of the curing cylinder (40) and connected with the lower end of the side wall of the exchange box (30) through a conduit, an inner cylinder (42) sleeved in the filter cylinder (41) and fixedly connected with the inner top of the filter cylinder (41) and the upper end face of the curing cylinder (40) respectively, a pressing plate (43) slidably clamped in the inner cylinder (42) and a pushing motor (44) arranged at the upper end of the curing cylinder (40) and positioned in the inner cylinder (42); a sealing cover (400) is movably hinged on the side wall of the curing cylinder (40); a peristaltic pump (45) is arranged at the joint of the filter cartridge (41) and the exchange box (30), a feeding pipe (410) communicated with the inside of the inner cylinder (42) is arranged at the top end of the filter cartridge (41), and a drain pipe (411) is arranged at the lower end of the side wall of the filter cartridge (41); a water outlet groove (420) is arranged on the upper side wall of the inner cylinder (42); a material guide pipe (430) penetrating through the curing cylinder (40) is arranged on the pressing plate (43), and an electric control valve is arranged on the material guide pipe (430); an output shaft of the pushing motor (44) is provided with a pushing screw rod (440) which is in threaded connection with the pressing plate (43) and is rotationally clamped with the filter cartridge (41), and the pushing screw rod (440) is sleeved with a stirring disc (46).
2. The solid waste reduction recycling device for mine environment treatment according to claim 1, wherein one end of the auxiliary crushing mesh screen (22) is provided with a shaft sleeve (222) sleeved on the rotating shaft (210) and rotationally clamped with the outer shell (23), a connecting belt wheel (2220) is arranged on the shaft sleeve (222), an auxiliary motor (25) is arranged on the bottom plate (1), and a main belt wheel (250) connected with the connecting belt wheel (2220) through a belt is arranged on an output shaft of the auxiliary motor (25).
3. The solid waste reduction recovery treatment device for mine environment remediation according to claim 1, wherein the main crushing member (21) comprises two connecting frames (211) which are rotatably clamped inside the auxiliary crushing mesh screen (22) and are fixedly connected with the two rotating shafts (210) respectively, and a plurality of crushing rollers (213) which are rotatably clamped between the two connecting frames (211) through connecting shafts (212).
4. The solid waste reduction recovery treatment device for mine environment treatment according to claim 3, wherein sliding clamping grooves (2110) are formed in each of the two connecting frames (211), sliding sleeves (2120) which are in sliding clamping connection with the sliding clamping grooves (2110) at corresponding positions are rotatably clamped at the two ends of each connecting shaft (212), pushing rods (2121) which are in sliding clamping connection with the inside of the connecting frames (211) are fixedly arranged on each sliding sleeve (2120), and reset springs (2122) which are in contact with the inner walls of the connecting frames (211) are sleeved on each pushing rod (2121); a positioning tube (214) is arranged between the two connecting frames (211), the two ends of the inside of the positioning tube (214) are respectively and slidably clamped with a ball head (2140) which is abutted against each pushing rod (2121) at the corresponding position, an adjusting motor (215) is arranged at the central position inside the positioning tube (214), and adjusting screw rods (2150) which are in threaded connection with the two ball heads (2140) are respectively arranged on the output shafts at the two ends of the adjusting motor (215).
5. The solid waste reduction recovery treatment device for mine environment control according to claim 4, wherein the end of each sliding clamping groove (2110) far away from the positioning pipe (214) is provided with a locking pin (216), and the sliding sleeve (2120) and the connecting shaft (212) are provided with locking grooves (217) which can be clamped with the locking pins (216).
6. The solid waste reduction recovery treatment device for mine environment treatment according to claim 1, wherein a plurality of curing cavities (401) are arranged in the curing cylinder (40), the positions and the numbers of the sealing covers (400) are in one-to-one correspondence with the curing cavities (401), the material guiding pipes (430) are provided with a plurality of material guiding pipes (430), and the material guiding pipes (430) are in one-to-one correspondence with the upper and lower positions of the curing cavities (401); a deposition groove (431) is arranged on the pressing plate (43).
7. The solid waste reduction recycling device for mine environment treatment according to claim 6, wherein an infrared heating pipe (402) is arranged at the inner top of the curing cylinder (40), release plates (47) are slidably clamped in the curing chambers (401), ejector rods (470) are arranged on the lower bottom surfaces of the release plates (47), release turnplates (471) fixedly connected with output shafts of the pushing motors (44) are rotatably clamped in the inner bottoms of the curing cylinder (40), and wedge-shaped sliding blocks (472) corresponding to the upper positions and the lower positions of the ejector rods (470) one by one are arranged on the upper end face of the release turnplates (471).
8. The solid waste reduction recycling device for mine environment treatment according to claim 1, wherein a plurality of stirring discs (46) are arranged, the stirring disc (46) positioned at the uppermost end of the pushing screw (440) is rotationally clamped with the pushing screw (440), the other stirring discs (46) are slidably clamped with the pushing screw (440), and compression springs (460) sleeved on the pushing screw (440) are arranged between the stirring discs (46).
9. The method for carrying out the solid waste reduction recovery treatment by using the device according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, respectively connecting a crushing motor (24), a pushing motor (44) and a peristaltic pump (45) with an external power supply;
s2, leading mine solid waste into an outer shell (23) through a feed hopper (231), enabling the mine solid waste to enter a space between an auxiliary crushing mesh screen (22) and a main crushing member (21) through a feed hole (221) on the auxiliary crushing mesh screen (22), then starting a crushing motor (24), driving the main crushing member (21) to rotate through a rotating shaft (210) by using the crushing motor (24), crushing the mine solid waste by using the main crushing member (21) and the auxiliary crushing mesh screen (22), and introducing clear water into a spray pipe (232) through a water inlet pipe in the crushing process, so that mine solid waste powder and clear water are mixed according to a mass ratio of 1:4-6 to form solid waste slurry;
s3, introducing the solid waste slurry obtained in the step S2 into an exchange box (30) through a pipeline, and carrying out adsorption treatment on heavy metal ions in the solid waste slurry by utilizing ion exchange resin for 30-45 min; then a peristaltic pump (45) is started, solid waste slurry is led into the inner cylinder (42), finally hydrochloric acid solution is injected into the inner part of the exchange box (30) through an acid injection pipe (300) on the exchange box (30) to elute the ion exchange resin, and the eluent is discharged out of the exchange box (30) through a liquid discharge pipe (301) to extract heavy metal ions in the eluent; the volume ratio of the hydrochloric acid solution to the ion exchange resin is 3-5:1, and the volume concentration of the hydrochloric acid solution is 15-25%;
s4, starting a pushing motor (44), driving a pushing screw rod (440) to rotate by using the pushing motor (44), enabling a pressing plate (43) to move upwards along the inner wall of an inner cylinder (42) under the action of the pushing screw rod (440), enabling solid waste slurry to move upwards along the inner cylinder (42) under the action of the pressing plate (43), enabling water in the solid waste slurry to enter an area between a filter cylinder (41) and the inner cylinder (42) through a water outlet groove (420) on the inner cylinder (42), and finally discharging the water from the filter cylinder (41) through a drain pipe (411); finally, silicate cement is added into the inner cylinder (42) through a feeding pipe (410), and the silicate cement and the dehydrated solid waste slurry are fully mixed by utilizing a stirring disc (46) to obtain a mixture of the solid waste slurry and the silicate cement; wherein the mass ratio of the Portland cement to the dehydrated solid waste slurry is 1:5-7;
s5, opening an electric control valve on the material guide pipe (430), enabling the mixture of the solid waste slurry and the silicate cement in the inner cylinder (42) to enter the curing cylinder (40) for curing for 12-15 hours, and finally transferring the cured solid waste slurry through the sealing cover (400).
CN202310123771.9A 2023-02-16 2023-02-16 Solid waste reduction recycling device and method for mine environment treatment Active CN115837394B (en)

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