CN114042747B

CN114042747B - Heavy metal pollution remediation administers device for mining area tailing sand

Info

Publication number: CN114042747B
Application number: CN202111386464.7A
Authority: CN
Inventors: 蔡永兵; 孟凡德; 马万征; 董红香; 李飞跃
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-10-18
Anticipated expiration: 2041-11-22
Also published as: CN114042747A

Abstract

The invention discloses a heavy metal pollution remediation treatment device for mine tailing sand, which relates to the technical field of tailing sand treatment and comprises a base; the conveying belt is fixed on the upper end face of the base; the shell is positioned above the conveying belt and fixed on the base; the repairing assembly is obliquely fixed inside the shell and is used for stirring and dehydrating the tailing sand; and the crushing and screening assembly is fixed at the top of one end of the repairing assembly and is used for crushing and screening the tailing sand. According to the invention, the crushing and screening assembly can be used for crushing and screening the tailing sand, and simultaneously, the moisture in the tailing sand is primarily removed, so that the treatment efficiency of the tailing sand is accelerated.

Description

Heavy metal pollution remediation and treatment device for mine area tailing sand

Technical Field

The invention relates to the technical field of tailing sand treatment, in particular to a heavy metal pollution remediation and treatment device for tailing sand in a mining area.

Background

Heavy metals in the tailings sand can cause harm to the ecological environment, so the tailings sand needs to be treated before being used, and the crushed tailings sand is mixed with the repair liquid to effectively reduce the content of the heavy metals.

The existing tailing sand treatment device firstly crushes tailing sand, then screens the tailing sand, the tailing sand with incomplete crushing degree is thrown into crushing equipment again to continue crushing, multiple crushing is needed, and the tailing sand is generally screened by vertical vibration or horizontal vibration during screening, so that the screening strength is insufficient, and the tailing sand treatment efficiency is influenced.

Aiming at the problems, the invention provides a heavy metal pollution remediation and treatment device for mine area tailing sand, which aims to solve the problems.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a mining area is heavy metal pollution restoration administers device for tailings sand, includes:

a base;

the conveying belt is fixed on the upper end face of the base;

the shell is positioned above the conveying belt and fixed on the base;

the repairing assembly is obliquely fixed inside the shell and is used for stirring and dehydrating the tailing sand; and

and the crushing and screening component is fixed at the top of one end of the repairing component and is used for crushing and screening the tailing sand.

Further, it is preferred that the crushing screen assembly comprises:

a fixed cylinder;

the telescopic rods are arranged in a plurality of numbers, and one end of each telescopic rod is circumferentially hinged on the inner wall of the fixed cylinder;

the outer wall of the crushing and screening chamber is hinged to one end, far away from the fixed cylinder, of each telescopic rod; and

and the crushing shaft is coaxially and rotatably arranged in the fixed cylinder, and one end of the crushing shaft penetrates through the fixed cylinder and is fixed with an output shaft of an external motor.

Further, preferably, a feed inlet is formed in the top of the fixed cylinder, a discharge outlet is formed in the position, opposite to the feed inlet, of the bottom of the fixed cylinder, and the discharge outlet is communicated with the inlet of the repairing assembly.

Further, it is preferred, be connected with separation piece one and separation piece two between broken screening room and the fixed cylinder, separation piece one is used for the separation in the tailing sand gets into the telescopic link, separation piece two is used for restricting the tailing sand and directly flows out from the discharge gate, just separation piece one and separation piece two are the tarpaulin material.

Further, it is preferred, broken screening room includes a screening section of thick bamboo at least, screening groove has been seted up to the symmetry in the screening section of thick bamboo, screening inslot is fixed with the screening net, the drainage groove has been seted up to screening section of thick bamboo inner wall bottom, the drainage inslot is fixed with the water strainer, just drainage groove one end is passed through the drain pipe and is communicated with the outside.

Further, preferably, the bottom of the drainage trough is obliquely arranged facing one end of the drainage pipe, and the aperture of the water filtering net is smaller than that of the screening net;

vibration rings have still been seted up to screening section of thick bamboo both ends axle center position, just vibration rings are regular petal form for make broken axle rotate at its inside.

Further, preferably, the crushing shaft includes:

a rotating shaft;

the crushing blade is fixed on the rotating shaft; and

and the limiting blocks are fixed at two ends of the rotating shaft and correspond to the vibration rings.

Further, preferably, the limiting block is rotatably provided with a plurality of rotating wheels for sliding in the vibrating ring;

and the distance from the crushing blade to the screening barrel is greater than the telescopic distance of the telescopic rod.

Further, it is preferred that the repair assembly is sequentially fixed with a stirring section, a dewatering section and a drying section from left to right, a repair liquid inlet is formed in one side of the stirring section, a tailing sand outlet is formed in the bottom of the drying section, and the interior of the repair assembly is conveyed through a spiral conveying blade.

Compared with the prior art, the invention provides a heavy metal pollution remediation and treatment device for mine area tailing sand, which has the following beneficial effects:

according to the invention, after the tailing sand is put into the crushing and screening assembly, the crushing shaft is driven to rotate through the external motor, so that the tailing sand is crushed, the screening cylinder can be driven to perform arc-shaped vibration through the contact of the limiting block and the vibration ring while the crushing shaft rotates, the screening efficiency is greatly improved, the tailing sand can be preliminarily dehydrated through the water filtering groove, the phenomenon that the repairing liquid is excessively diluted by the internal moisture to affect the repairing effect is prevented, and the tailing sand in the screening cylinder can be driven to be thrown when the screening cylinder vibrates, so that the tailing sand which is not screened is continuously crushed, and the crushing efficiency is improved.

Drawings

FIG. 1 is an overall schematic view of a heavy metal pollution remediation and treatment device for mine area tailings;

FIG. 2 is a schematic perspective view of a crushing and screening assembly of the heavy metal pollution remediation and treatment device for mine tailings;

FIG. 3 is a schematic view of the inside of a crushing and screening assembly of a heavy metal pollution remediation and treatment device for mine area tailings;

FIG. 4 isbase:Sub>A schematic sectional view ofbase:Sub>A crushing and screening assembly A-A of the heavy metal pollution remediation and treatment device for mine area tailings sand;

in the figure: 1. a base; 2. a conveyor belt; 3. a housing; 4. repairing the component; 5. crushing the screen assemblies; 41. a repair liquid inlet; 42. a stirring section; 43. a dewatering section; 44. a drying section; 51. a fixed cylinder; 52. a crushing and screening chamber; 53. a telescopic rod; 54. a first barrier sheet; 55. a second barrier sheet; 56. a feed inlet; 57. a crushing shaft; 58. a drain pipe; 521. a screening drum; 522. a screening tank; 523. screening the net; 524. a water filtering net; 525. a vibration ring; 571. a rotating shaft; 572. a limiting block; 573. a rotating wheel.

Detailed Description

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a mining area is heavy metal pollution restoration treatment device for tailing sand, includes:

a base 1;

the conveying belt 2 is fixed on the upper end face of the base 1;

the shell 3 is positioned above the conveying belt 2 and fixed on the base 1;

the repairing assembly 4 is obliquely fixed inside the shell 3 and is used for stirring and dehydrating tailing sand; and

and the crushing and screening assembly 5 is fixed at the top of one end of the repairing assembly 4 and is used for crushing and screening the tailing sand.

In this embodiment, the crushing screen assembly 5 comprises:

a fixed cylinder 51;

a plurality of telescopic rods 53, one end of which is circumferentially hinged on the inner wall of the fixed cylinder 51;

a crushing and screening chamber 52, the outer wall of which is hinged at one end of the telescopic rods 53 far away from the fixed barrel 51; and

the crushing shaft 57 is coaxially and rotatably provided in the fixed cylinder 51, and has one end penetrating the fixed cylinder 51 and fixed to an output shaft of an external motor.

In a preferred embodiment, the top of the fixed cylinder 51 is provided with a feeding hole 56, and the bottom of the fixed cylinder 51 opposite to the feeding hole 56 is provided with a discharging hole, and the discharging hole is communicated with the inlet of the repair assembly 4.

In a preferred embodiment, a first blocking plate 54 and a second blocking plate 55 are connected between the crushing and screening chamber 52 and the fixed cylinder 51, the first blocking plate 54 is used for blocking the tailing sand from entering the telescopic rod 53, the second blocking plate 55 is used for limiting the tailing sand to directly flow out of the discharge hole, and the first blocking plate 54 and the second blocking plate 55 are both made of waterproof cloth.

It should be noted that the first barrier panel 54 and the second barrier panel 55 have high extensibility and can be extended along with the movement of the sieving cylinder 521.

In a preferred embodiment, the crushing and screening chamber 52 at least includes a screening cylinder 521, screening grooves 522 are symmetrically formed in the screening cylinder 521, a screening net 523 is fixed in the screening grooves 522, a water filtering groove is formed in the bottom of the inner wall of the screening cylinder 521, a water filtering net 524 is fixed in the water filtering groove, and one end of the water filtering groove is communicated with the outside through a water drainage pipe 58.

That is to say, carry out preliminary dehydration to the tailings sand through drainage groove, prevented that the inside moisture of tailings sand from diluting the repairing liquid too big to influence the restoration effect.

In a preferred embodiment, the bottom of the drainage trough is inclined towards one end of the drainage pipe 58, and the pore diameter of the water filtering net 524 is smaller than that of the sieving net 523;

the axial center positions of the two ends of the screening cylinder 521 are further provided with vibration rings 525, and the vibration rings 525 are in regular petal shapes and used for enabling the crushing shaft 57 to rotate inside the crushing shaft.

As a preferred embodiment, the crushing shaft 57 comprises:

a rotating shaft 571;

a crushing blade fixed on the rotating shaft 571; and

and the limiting blocks 572 are fixed at two ends of the rotating shaft 571 and correspond to the vibration rings 525.

In a preferred embodiment, the stopper 572 is rotatably provided with a plurality of rollers 573 for sliding in the vibration ring 525;

and, the distance from the crushing blade to the sieving cylinder 521 is greater than the telescopic distance of the telescopic rod 53.

That is to say, screening section of thick bamboo 521 can drive its inside tailings sand when carrying out the arc vibration and shed to the tailings sand that is close to broken sword in making screening section of thick bamboo 521 carries out breakage once more, has improved broken efficiency.

In this embodiment, the repairing assembly 4 is sequentially fixed with a stirring section 42, a dewatering section 43 and a drying section 44 from left to right, a repairing liquid inlet is formed in one side of the stirring section 42, a tailing sand outlet is formed in the bottom of the drying section 44, and the interior of the repairing assembly 4 is conveyed through a spiral conveying blade.

It should be noted that the stirring section 42 stirs and conveys the slurry by the rotation of the screw conveying blades, the dehydrating section 43 performs gravity dehydration by being inclined, and the drying section 44 performs drying by an internal drying device.

Specifically, after throwing into crushing and screening subassembly 5 with the tailings sand, drive broken axle 57 through external motor and rotate, thereby carry out the breakage to the tailings sand, it drives screening section of thick bamboo 521 to carry out the arc vibration through stopper 572 and vibration ring 525 contact in broken axle 57 pivoted, thereby make the tailings sand of broken completion sieve out from screening net 523, and in getting into restoration subassembly 4 through the discharge gate, and in the screening, carry out preliminary dehydration through the drainage tank to the tailings sand, the tailings sand after the screening gets into and mixes with repair liquid through stirring section 42 behind the restoration subassembly 4, rethread dewatering section 43 and stoving section 44 are handled, fall on conveyer belt 2 through the tailings sand export at last, and see this device out.

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 considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a mining area is heavy metal pollution restoration treatment device for tailing sand which characterized in that: the method comprises the following steps:

a base (1);

the conveying belt (2) is fixed on the upper end face of the base (1);

the shell (3) is positioned above the conveying belt (2) and is fixed on the base (1);

the repairing assembly (4) is obliquely fixed inside the shell (3) and is used for stirring and dehydrating the tailing sand; and

the crushing and screening assembly (5) is fixed at the top of one end of the repairing assembly (4) and is used for crushing and screening the tailing sand;

the crushing and screening assembly (5) comprises:

a fixed cylinder (51);

a plurality of telescopic rods (53) with one end being hinged on the inner wall of the fixed cylinder (51);

the outer wall of the crushing and screening chamber (52) is hinged to one end, far away from the fixed barrel (51), of the telescopic rods (53); and

the crushing shaft (57) is coaxially and rotatably arranged in the fixed cylinder (51), and one end of the crushing shaft penetrates through the fixed cylinder (51) and is fixed with an output shaft of an external motor;

a first blocking sheet (54) and a second blocking sheet (55) are connected between the crushing and screening chamber (52) and the fixed cylinder (51), the first blocking sheet (54) is used for blocking the tailing sand from entering the telescopic rod (53), the second blocking sheet (55) is used for limiting the tailing sand to directly flow out of the discharge hole, and the first blocking sheet (54) and the second blocking sheet (55) are both made of waterproof cloth;

the crushing and screening chamber (52) at least comprises a screening barrel (521), screening grooves (522) are symmetrically formed in the screening barrel (521), screening nets (523) are fixed in the screening grooves (522), water filtering grooves are formed in the bottoms of the inner walls of the screening barrel (521), water filtering nets (524) are fixed in the water filtering grooves, and one ends of the water filtering grooves are communicated with the outside through water discharging pipes (58);

the bottom of the drainage tank is obliquely arranged facing one end of the drainage pipe (58), and the aperture of the water filtering net (524) is smaller than that of the screening net (523);

the screening cylinder (521) is characterized in that vibration rings (525) are further arranged at the axle centers of the two ends of the screening cylinder (521), and the vibration rings (525) are in a regular petal shape and used for enabling the crushing shaft (57) to rotate inside the vibration rings;

the crushing shaft (57) comprises:

a rotating shaft (571);

the crushing blade is fixed on the rotating shaft (571); and

and the limiting blocks (572) are fixed at two ends of the rotating shaft (571) and correspond to the vibration rings (525).

2. The heavy metal pollution remediation and treatment device for mine area tailings sand, according to claim 1, is characterized in that: the top of the fixed cylinder (51) is provided with a feeding hole (56), the bottom of the fixed cylinder (51) is provided with a discharging hole at a position opposite to the feeding hole (56), and the discharging hole is communicated with the inlet of the repairing assembly (4).

3. The device of claim 1, for the mine area tailings sand heavy metal pollution remediation and treatment, characterized in that: a plurality of rotating wheels (573) are rotatably arranged on the limiting block (572) and are used for sliding in the vibration ring (525);

and the distance from the crushing blade to the screening cylinder (521) is greater than the telescopic distance of the telescopic rod (53).

4. The device of claim 1, for the mine area tailings sand heavy metal pollution remediation and treatment, characterized in that: repair subassembly (4) are fixed with stirring section (42), dehydration section (43) and stoving section (44) from a left side to the right side in proper order, just repair liquid entry has been seted up to stirring section (42) one side, the tailings sand export has been seted up to stoving section (44) bottom, just repair subassembly (4) inside is carried through the spiral delivery leaf.