CN113617644A

CN113617644A - Screening device for blast furnace waste treatment and using method thereof

Info

Publication number: CN113617644A
Application number: CN202111090749.6A
Authority: CN
Inventors: 田通强; 李亮; 李钧; 杨红军; 邱斌良; 魏纯江; 曾军
Original assignee: Chengyu Tranvic Science and Technology Co Ltd
Current assignee: Chengyu Tranvic Science and Technology Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-09

Abstract

The invention discloses a screening device for blast furnace waste treatment and a use method thereof, the screening device comprises a bottom plate, one end of the top of the bottom plate is fixedly connected with a vertical plate, the outer side of the vertical plate is provided with a through groove, two first cross rods are fixedly connected with the outer side of the vertical plate and below the through groove, one ends of the first cross rods, far away from the vertical plate, are fixedly connected with a limiting plate, the outer sides of the first cross rods are respectively connected with two sliding blocks in a sliding manner, and a first return spring is sleeved between the limiting plate and one of the sliding blocks, the screening device is compact in structure, simple and convenient to operate and strong in practicability, can double-screen blast furnace waste by arranging a driving mechanism to drive two screen frames to operate, further improves the screening effect, and can clean dust contained in the waste before screening by arranging an ash cleaning mechanism, thereby greatly improving the use effect of the equipment and being beneficial to practical application and operation.

Description

Screening device for blast furnace waste treatment and using method thereof

Technical Field

The invention belongs to the technical field of screening devices, and particularly relates to a screening device for blast furnace waste treatment and a using method thereof.

Background

In the prior life, a blast furnace uses a steel plate as a furnace shell, a refractory brick lining is built in the shell, and a blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace cylinder 5 from top to bottom, because the blast furnace ironmaking technology has the advantages of good economic indexes, simple process, large production capacity, high labor production efficiency, low energy consumption and the like, the iron produced by the method accounts for most of the total iron production in the world, iron ore, coke and slag-making flux are loaded from the furnace top during the production of the blast furnace, preheated air is blown in from an air port positioned at the lower part of the furnace along the periphery, carbon in the coke and oxygen blown in the air combust to generate carbon monoxide and hydrogen at high temperature, oxygen in the iron ore is removed during the ascending process in the furnace, so as to reduce the flux iron, the smelted molten iron is discharged from an iron port, unreduced impurities in the iron ore and limestone are combined to generate slag, the slag is discharged from a slag port, and generated coal gas is discharged from the furnace top, after dust removal, the fuel can be used as fuel of hot blast stoves, heating furnaces, coke ovens, boilers and the like. The main products of blast furnace smelting are pig iron and the byproducts of blast furnace slag and blast furnace gas, and the slag waste generated in the working process of the blast furnace generally needs to be screened and then recovered.

But present sieving mechanism for blast furnace waste material treatment is using, can only once screen the waste material mostly to lead to the screening effect relatively poor, can't be abundant distinguish the waste material of different specifications, present sieving mechanism for blast furnace waste material treatment is using simultaneously, mostly lacks deashing mechanism, contain a large amount of dusts in the waste material of follow blast furnace discharge, if do not carry out the deashing to it and handle, directly screen, will cause the dust to fly upward, be unfavorable for practical application.

The invention content is as follows:

the present invention has been made to solve the above problems, and an object of the present invention is to provide a screening apparatus for blast furnace waste treatment and a method of using the same, which solve the problems of the background art.

In order to solve the above problems, the present invention provides a technical solution:

a screening device for blast furnace waste treatment comprises a bottom plate, wherein one end of the top of the bottom plate is fixedly connected with a vertical plate, the outer side of the vertical plate is provided with a through groove, two first cross rods are fixedly connected with the outer side of the vertical plate and positioned below the through groove, one end of each first cross rod, which is far away from the vertical plate, is fixedly connected with a limiting plate, the outer side of each first cross rod is respectively and slidably connected with two sliding blocks, a first return spring is sleeved on the outer side of each first cross rod and positioned between the limiting plate and one of the sliding blocks, a first screen frame is fixedly connected between the sliding blocks, one end, which is close to the vertical plate, of the top of the first screen frame is fixedly connected with a fixed block, one end, which is far away from the vertical plate, of the bottom of the first screen frame is fixedly connected with two first magnets, and two second cross rods are fixedly connected with the outer side of the vertical plate and positioned below the first screen frame, two second return springs of the equal fixedly connected with of one end of vertical board are kept away from at the top of second horizontal pole, the equal fixedly connected with fixed plate in top of second return spring, fixedly connected with second reel between the fixed plate, the equal fixedly connected with screen cloth in bottom of second reel and first reel, the top of second reel is close to two second magnets of mutually supporting with first magnet of the one end fixedly connected with of vertical board, the top of vertical board and the top that is located first reel are provided with the deashing mechanism, one side that the deashing mechanism was kept away from at the top of vertical board is provided with actuating mechanism.

As preferred, the deashing mechanism includes the deashing case, the top of vertical board and the top fixedly connected with deashing case that is located first reel, the one end fixedly connected with feeding funnel of vertical board is kept away from at the top of deashing case, the one end fixedly connected with ash discharge pipe that the top of deashing case is close to vertical board, one side fixed mounting that vertical board was kept away from to the deashing case has servo motor, one side that vertical board was kept away from to the deashing case and the below fixed mounting that is located servo motor have an air-blower, servo motor's output shaft extends to the inside and the fixedly connected with axis of rotation of deashing case, the outside of axis of rotation just is located the inside equidistance fixedly connected with stirring vane of deashing case, the bottom of deashing case is close to the one end fixedly connected with unloading pipe of vertical board.

Preferably, the driving mechanism comprises a transmission box, one side of the top of the vertical plate, which is far away from the ash removal box, is fixedly connected with the transmission box, one end of the rotation shaft, which is far away from the servo motor, extends to the inside of the transmission box and is fixedly connected with a first bevel gear, the bottom of the inner wall of the transmission box is rotatably connected with a first rotation rod, the top of the first rotation rod is fixedly connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, the bottom of the first rotation rod extends to the bottom of the transmission box and is fixedly connected with a U-shaped rod, the outer side of the U-shaped rod is rotatably connected with a push rod, one end of the push rod, which is far away from the U-shaped rod, penetrates through the through groove and is rotatably connected with the top of the fixed block, the bottom of the U-shaped rod is fixedly connected with a second rotation rod, and the outer side of the vertical plate is fixedly connected with a transverse plate below the second rotation rod, the bottom of the second rotating rod is rotatably connected with the top of the transverse plate.

Preferably, the magnetic poles of the bottom of the first magnet are the same as the magnetic poles of the top of the second magnet.

Preferably, a first collecting box is arranged at one end, close to the vertical plate, of the top of the bottom plate, and a second collecting box is arranged at one side, located on the top of the bottom plate, of the first collecting box.

Preferably, the electromagnetic valves are fixedly mounted on the outer sides of the feeding hopper and the discharging pipe.

Preferably, a control panel is fixedly mounted on one side, far away from the second cross rod, of the bottom of the vertical plate, and the servo motor, the blower and the electromagnetic valve are electrically connected with the control panel.

Preferably, the output end of the blower extends to the interior of the dust removing box and is fixedly connected with the filter screen.

A use method of a screening device for blast furnace waste treatment comprises the following steps:

s1, placing the equipment at a designated position, connecting the dust exhaust pipe with external dust collecting equipment, simultaneously electrifying the equipment, when in use, the electromagnetic valve outside the feeding funnel is controlled to be opened through the control panel, then the feeding can be carried out through the feeding funnel, the blast furnace waste material enters the interior of the ash removing box through the feeding funnel, after the feeding is finished, the electromagnetic valve outside the feeding funnel is controlled to be closed through the control panel, then the servo motor is controlled by the control panel to work to drive the rotating shaft and the stirring blades to rotate, thereby stirring the waste materials in the ash removal box, simultaneously blowing air into the ash removal box by controlling the air blower to work, thus, the dust contained in the stirred blast furnace waste is cleaned, and the dust is blown into the dust exhaust pipe and is collected by external dust collecting equipment;

s2, after the dust cleaning operation is finished, controlling the air blower to stop working through the control panel, then controlling the electromagnetic valve outside the blanking pipe to open, conveying and blanking the waste through the rotation of the rotating shaft and the stirring blades, enabling the waste to fall into the first screen frame through the blanking pipe, meanwhile, driving the first bevel gear to rotate through the rotation of the rotating shaft, so as to drive the second bevel gear to rotate with the first rotating rod, and simultaneously driving the U-shaped rod and the second rotating rod to rotate, and further driving the first screen frame to reciprocate left and right through the pushing rod outside the U-shaped rod, so that one screening operation is finished;

s3, waste material after the screening of first reel falls into the inside of second reel, while reciprocating motion about first reel carries out, drive first magnet and carry out reciprocating motion about, through repulsion force between first magnet and the second magnet and the elasticity of second return spring, can drive the second reel and shake the screening operation from top to bottom, thereby accomplish the secondary screening operation to the waste material, less waste material after the screening falls into the inside of first collection box and collects, great waste material after the screening falls into the inside of second collection box and collects.

The invention has the beneficial effects that: the double-screen dust removing device is compact in structure, simple and convenient to operate and high in practicability, the driving mechanism is arranged to drive the two screen frames to operate, so that double screening can be performed on blast furnace waste, the screening effect is improved, meanwhile, the dust contained in the waste before screening can be cleaned through the dust removing mechanism, the using effect of equipment is greatly improved, and practical application and operation are facilitated.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a schematic view of a second frame structure of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a base plate; 2. a vertical plate; 3. a through groove; 4. a first cross bar; 5. a limiting plate; 6. a slider; 7. a first return spring; 8. a first screen frame; 9. a first magnet; 10. a second cross bar; 11. a second return spring; 12. a fixing plate; 13. a second screen frame; 14. screening a screen; 15. a second magnet; 16. a dust removal mechanism; 161. a dust removal box; 162. a charging hopper; 163. a servo motor; 164. a rotating shaft; 165. a stirring blade; 166. an ash discharge pipe; 167. a blower; 168. a discharging pipe; 17. a drive mechanism; 171. a transmission box; 172. a first bevel gear; 173. a first rotating lever; 174. a second bevel gear; 175. a U-shaped rod; 176. a push rod; 177. a second rotating lever; 178. a transverse plate; 18. a first collection box; 19. a second collection box; 20. a control panel; 21. and (5) fixing blocks.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment:

example (b):

a screening device for blast furnace waste treatment comprises a bottom plate 1, wherein one end of the top of the bottom plate 1 is fixedly connected with a vertical plate 2, and the vertical plate 2 and the bottom plate 1 form an L-shaped structure; a through groove 3 is formed in the outer side of the vertical plate 2, two first cross rods 4 are fixedly connected to the outer side of the vertical plate 2 and below the through groove 3, a limiting plate 5 is fixedly connected to one end, away from the vertical plate 2, of each first cross rod 4, two sliding blocks 6 are slidably connected to the outer side of each first cross rod 4, a first return spring 7 is sleeved between each limiting plate 5 and one of the sliding blocks 6, a first screen frame 8 is fixedly connected between the sliding blocks 6, and movement of the first screen frame 8 is better buffered through the first return springs 7; the top of the first screen frame 8 is fixedly connected with a fixed block 21 at one end close to the vertical plate 2, the bottom of the first screen frame 8 is fixedly connected with two first magnets 9 at one end far away from the vertical plate 2, the magnets are composed of iron, cobalt, nickel and other atoms, the internal structures of the atoms are special, the magnets have magnetic moments, and the magnets can generate magnetic fields and have the characteristic of attracting ferromagnetic substances such as iron, nickel, cobalt and other metals; two second cross rods 10 are fixedly connected to the outer side of the vertical plate 2 and below the first screen frame 8, two second return springs 11 are fixedly connected to one ends, far away from the vertical plate 2, of the tops of the second cross rods 10, fixed plates 12 are fixedly connected to the tops of the second return springs 11, second screen frames 13 are fixedly connected between the fixed plates 12, and the second screen frames 13 can be better buffered and shaken through the second return springs 11; the bottoms of the second screen frame 13 and the first screen frame 8 are fixedly connected with a screen 14, and the screen 14 is convenient for better filtering and screening the blast furnace waste; the top of second reel 13 is close to the one end fixedly connected with two second magnets 15 of mutually supporting with first magnet 9 of vertical board 2, the top of vertical board 2 and the top that is located first reel 8 are provided with deashing mechanism 16, the one side that deashing mechanism 16 was kept away from at the top of vertical board 2 is provided with actuating mechanism 17.

Wherein, the ash removing mechanism 16 comprises an ash removing box 161, the top of the vertical plate 2 is fixedly connected with the ash removing box 161 above the first screen frame 8, one end of the top of the ash removing box 161 far away from the vertical plate 2 is fixedly connected with a feeding funnel 162, one end of the top of the ash removing box 161 near the vertical plate 2 is fixedly connected with an ash discharging pipe 166, one side of the ash removing box 161 far away from the vertical plate 2 is fixedly provided with a servo motor 163, one side of the ash removing box 161 far away from the vertical plate 2 is fixedly provided with an air blower 167 below the servo motor 163, an output shaft of the servo motor 163 extends to the inside of the ash removing box 161 and is fixedly connected with a rotating shaft 164, the outer side of the rotating shaft 164 is fixedly connected with stirring blades 165 in the inner equal distance of the ash removing box 161, one end of the bottom of the ash removing box 161 near the vertical plate 2 is fixedly connected with a discharging pipe 168, work through control servo motor 163, it rotates with stirring vane 165 to drive axis of rotation 164, thereby stir the inside waste material of deashing case 161, work through control air-blower 167 simultaneously, blow air to the inside of deashing case 161, thereby clear up the dust that contains in the blast furnace waste material that stirs up, blow in the inside of dust exhaust pipe 166 with the dust, make it collect through external dust collecting device, through setting up deashing mechanism 16, be convenient for better clear up the dust that contains in the blast furnace waste material, thereby the condition that the dust flies upward appears when avoiding follow-up screening operation.

Wherein, the driving mechanism 17 comprises a transmission box 171, one side of the top of the vertical plate 2 far from the ash removing box 161 is fixedly connected with the transmission box 171, one end of the rotation shaft 164 far from the servo motor 163 extends into the transmission box 171 and is fixedly connected with a first bevel gear 172, the bottom of the inner wall of the transmission box 171 is rotatably connected with a first rotation rod 173, the top of the first rotation rod 173 is fixedly connected with a second bevel gear 174, the first bevel gear 172 is meshed with the second bevel gear 174, the bottom of the first rotation rod 173 extends to the bottom of the transmission box 171 and is fixedly connected with a U-shaped rod 175, the outer side of the U-shaped rod 175 is rotatably connected with a push rod 176, one end of the push rod 176 far from the U-shaped rod 175 penetrates through the through groove 3 and is rotatably connected with the top of the fixing block 21, the bottom of the U-shaped rod 175 is fixedly connected with a second rotation rod 177, the outer side of the vertical plate 2 and below the second rotation rod 177 is fixedly connected with a transverse plate 178, the bottom of second dwang 177 is connected with the top rotation of diaphragm 178, the rotation through axis of rotation 164 drives first bevel gear 172 and rotates, thereby drive second bevel gear 174 and first dwang 173 and rotate, it rotates with second dwang 177 to drive U type pole 175 simultaneously, and then drive first reel 8 through catch bar 176 in the U type pole 175 outside and control reciprocating motion, thereby accomplish the screening operation, through setting up actuating mechanism 17, be convenient for better rotation through axis of rotation 164 drives first reel 8 and controls reciprocating motion, thereby better screening the blast furnace waste that falls into first reel 8 inside.

Wherein, the magnetic pole of first magnet 9 bottom is the same with the magnetic pole at second magnet 15 top, and the mutual repulsion that is convenient for better between first magnet 9 and second magnet 15 drives second reel 13 and shakes from top to bottom to accomplish the screening operation.

Wherein, the first collection box 18 has been placed to the top of bottom plate 1 near the one end of vertical board 2, the second collection box 19 has been placed to the top of bottom plate 1 and lie in one side of first collection box 18, collects less waste material through first collection box 18 better, collects bigger waste material through second collection box 19 better.

Electromagnetic valves are fixedly mounted on the outer sides of the feeding funnel 162 and the blanking pipe 168, and the feeding funnel 162 and the blanking pipe 168 can be controlled to be on or off better through the electromagnetic valves.

Wherein, one side fixed mounting that the second horizontal pole 10 was kept away from to the bottom of vertical board 2 has control panel 20, servo motor 163, air-blower 167, solenoid valve all with control panel 20 electric connection, be convenient for better control the equipment is whole through control panel 20.

Wherein, the output of air-blower 167 extends to the inside and fixedly connected with filter screen of deashing case 161, through setting up the filter screen, is convenient for better prevent that the inside blast furnace waste material of deashing case 161 from getting into the output of air-blower 167 inside.

s1, placing the equipment at a designated position, connecting the ash discharge pipe 166 with an external dust collection device, electrifying the equipment, when in use, firstly controlling the electromagnetic valve outside the feeding funnel 162 to be opened through the control panel 20, then feeding through the feeding funnel 162, enabling the blast furnace waste to enter the interior of the ash removal box 161 through the feeding funnel 162, after feeding is completed, controlling the electromagnetic valve outside the feeding funnel 162 to be closed through the control panel 20, then controlling the servo motor 163 to work through the control panel 20, driving the rotating shaft 164 and the stirring blades 165 to rotate, stirring the waste in the ash removal box 161, simultaneously controlling the blower 167 to work, blowing air into the interior of the ash removal box 161, cleaning the dust contained in the stirred blast furnace waste, and blowing the dust into the ash discharge pipe 166, collecting the dust through external dust collecting equipment;

s2, after the ash removal operation is completed, the control panel 20 controls the blower 167 to stop working, then controls the electromagnetic valve outside the blanking pipe 168 to open, and conveys and blanks the waste material through the rotation of the rotating shaft 164 and the stirring blade 165, the waste material falls into the first screen frame 8 through the blanking pipe 168, and at the same time, the rotation of the rotating shaft 164 drives the first bevel gear 172 to rotate, thereby driving the second bevel gear 174 and the first rotating rod 173 to rotate, and simultaneously driving the U-shaped rod 175 and the second rotating rod 177 to rotate, and further driving the first screen frame 8 to reciprocate left and right through the pushing rod 176 outside the U-shaped rod 175, thereby completing a screening operation;

s3, the waste material after screening through first reel 8 falls into the inside of second reel 13, while reciprocating motion about first reel 8 carries out, drive first magnet 9 and carry out reciprocating motion about, through the repulsion between first magnet 9 and second magnet 15 and the elasticity of second return spring 11, can drive second reel 13 and shake the screening operation from top to bottom, thereby accomplish the secondary screening operation to the waste material, the less waste material after the screening falls into the inside of first collection box 18 and collects, the great waste material after the screening falls into the inside of second collection box 19 and collects.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The screening device for blast furnace waste treatment comprises a bottom plate (1) and is characterized in that one end of the top of the bottom plate (1) is fixedly connected with a vertical plate (2), a through groove (3) is formed in the outer side of the vertical plate (2), two first cross rods (4) are fixedly connected to the outer side of the vertical plate (2) and below the through groove (3), one ends, far away from the vertical plate (2), of the first cross rods (4) are fixedly connected with a limiting plate (5), the outer sides of the first cross rods (4) are respectively and slidably connected with two sliding blocks (6), first return springs (7) are sleeved on the outer sides of the first cross rods (4) and positioned between the limiting plate (5) and one of the sliding blocks (6), first screen frames (8) are fixedly connected between the sliding blocks (6), one ends, close to the vertical plate (2), of the top of the first screen frames (8) are fixedly connected with fixed blocks (21), the dust removing device is characterized in that two first magnets (9) are fixedly connected to one end, far away from the vertical plate (2), of the bottom of the first screen frame (8), two second cross rods (10) are fixedly connected to the outer side of the vertical plate (2) and located below the first screen frame (8), two second return springs (11) are fixedly connected to one ends, far away from the vertical plate (2), of the tops of the second cross rods (10), fixing plates (12) are fixedly connected to the tops of the second return springs (11), a second screen frame (13) is fixedly connected between the fixing plates (12), screen meshes (14) are fixedly connected to the bottoms of the second screen frame (13) and the first screen frame (8), two second magnets (15) matched with the first magnets (9) are fixedly connected to one end, close to the vertical plate (2), of the top of the vertical plate (2) and located above the first screen frame (8), and a dust removing mechanism (16) is arranged on the top of the vertical plate (2), and a driving mechanism (17) is arranged on one side, far away from the ash cleaning mechanism (16), of the top of the vertical plate (2).

2. The screening device for blast furnace waste treatment according to claim 1, wherein the ash removal mechanism (16) comprises an ash removal box (161), the top of the vertical plate (2) is fixedly connected with the ash removal box (161) above the first screen frame (8), one end of the top of the ash removal box (161) far away from the vertical plate (2) is fixedly connected with a feeding funnel (162), one end of the top of the ash removal box (161) close to the vertical plate (2) is fixedly connected with an ash discharge pipe (166), one side of the ash removal box (161) far away from the vertical plate (2) is fixedly provided with a servo motor (163), one side of the ash removal box (161) far away from the vertical plate (2) and below the servo motor (163) is fixedly provided with an air blower (167), an output shaft of the servo motor (163) extends to the inside of the ash removal box (161) and is fixedly connected with a rotating shaft (164), the outside of axis of rotation (164) and the inside equidistance fixedly connected with stirring vane (165) that is located deashing case (161), the one end fixedly connected with unloading pipe (168) that the bottom of deashing case (161) is close to vertical board (2).

3. The screening apparatus for blast furnace waste disposal according to claim 2, wherein the driving mechanism (17) comprises a transmission box (171), one side of the top of the vertical plate (2) far away from the ash removal box (161) is fixedly connected with the transmission box (171), one end of the rotating shaft (164) far away from the servo motor (163) extends to the inside of the transmission box (171) and is fixedly connected with a first bevel gear (172), the bottom of the inner wall of the transmission box (171) is rotatably connected with a first rotating rod (173), the top of the first rotating rod (173) is fixedly connected with a second bevel gear (174), the first bevel gear (172) is engaged with the second bevel gear (174), the bottom of the first rotating rod (173) extends to the bottom of the transmission box (171) and is fixedly connected with a U-shaped rod (175), the outer side of the U-shaped rod (175) is rotatably connected with a pushing rod (176), the one end that U type pole (175) was kept away from in catch bar (176) runs through logical groove (3) and rotates with the top of fixed block (21) and is connected, the bottom fixedly connected with second dwang (177) of U type pole (175), the below fixedly connected with diaphragm (178) that the outside of vertical board (2) just is located second dwang (177), the bottom of second dwang (177) rotates with the top of diaphragm (178) and is connected.

4. The blast furnace waste disposal screening apparatus according to claim 1, wherein the magnetic poles of the bottom of the first magnet (9) are the same as the magnetic poles of the top of the second magnet (15).

5. The screening apparatus for blast furnace waste disposal according to claim 1, wherein a first collecting box (18) is placed at the top of the bottom plate (1) near one end of the vertical plate (2), and a second collecting box (19) is placed at the top of the bottom plate (1) and at one side of the first collecting box (18).

6. The screening apparatus for blast furnace waste disposal according to claim 2, wherein solenoid valves are fixedly installed at the outer sides of the charging hopper (162) and the discharging pipe (168).

7. The screening device for blast furnace waste treatment according to claim 6, wherein a control panel (20) is fixedly installed on one side of the bottom of the vertical plate (2) far away from the second cross bar (10), and the servo motor (163), the blower (167) and the electromagnetic valve are all electrically connected with the control panel (20).

8. The screening apparatus for blast furnace waste disposal according to claim 2, wherein an output end of the blower (167) extends to an inside of the dust box (161) and a filter net is fixedly connected thereto.

9. The use of the screening apparatus for blast furnace waste disposal according to any one of claims 1 to 8, comprising the steps of:

s1, placing the equipment at a designated position, connecting an ash discharge pipe (166) with external dust collection equipment, electrifying the equipment, when in use, firstly controlling an electromagnetic valve on the outer side of a feeding funnel (162) to be opened through a control panel (20), then feeding through the feeding funnel (162), allowing blast furnace waste materials to enter the interior of an ash removal box (161) through the feeding funnel (162), after feeding is finished, controlling the electromagnetic valve on the outer side of the feeding funnel (162) to be closed through the control panel (20), then controlling a servo motor (163) to work through the control panel (20), driving a rotating shaft (164) and stirring blades (165) to rotate, stirring the waste materials in the ash removal box (161), simultaneously controlling the work through a control panel (167), blowing air into the interior of the ash removal box (161), and cleaning dust contained in the stirred blast furnace waste materials, blowing dust into the interior of the dust exhaust pipe (166) so as to be collected by external dust collecting equipment;

s2, after the ash removing operation is finished, controlling the air blower (167) to stop working through the control panel (20), then controlling the electromagnetic valve on the outer side of the blanking pipe (168) to be opened, conveying and blanking the waste through the rotation of the rotating shaft (164) and the stirring blade (165), enabling the waste to fall into the first screen frame (8) through the blanking pipe (168), meanwhile, driving the first bevel gear (172) to rotate through the rotation of the rotating shaft (164), driving the second bevel gear (174) and the first rotating rod (173) to rotate, driving the U-shaped rod (175) and the second rotating rod (177) to rotate, and driving the first screen frame (8) to reciprocate left and right through the pushing rod (176) on the outer side of the U-shaped rod (175), thereby finishing one-time screening operation;

s3, the waste materials screened by the first screen frame (8) fall into the second screen frame (13), and meanwhile, the first screen frame (8) is reciprocated leftwards and rightwards, and meanwhile, the first magnet (9) is driven to reciprocate leftwards and rightwards, the second screen frame (13) can be driven to shake and screen up and down through repulsive force between the first magnet (9) and the second magnet (15) and elastic force of the second return spring (11), so that secondary screening operation of the waste materials is completed, the small waste materials after screening fall into the first collection box (18) to be collected, and the large waste materials after screening fall into the second collection box (19) to be collected.