CN112871954A

CN112871954A - Method for recycling metal smelting furnace slag

Info

Publication number: CN112871954A
Application number: CN202011569985.1A
Authority: CN
Inventors: 马明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-06-01

Abstract

The invention relates to a metal smelting slag recycling method, which mainly comprises the following steps of raw material classification, crushing and grinding, adjustment operation and other various working procedures, wherein the used metal slag crushing and grinding equipment comprises a base plate, a crushing device, an extruding device and a grinding device; b, the existing metal smelting furnace slag can not be uniformly ground during crushing and grinding, and the phenomenon of clamping of crushing equipment often occurs due to the high hardness of the metal smelting furnace slag, so that the crushing and grinding efficiency and quality of the metal smelting furnace slag are reduced.

Description

Method for recycling metal smelting furnace slag

Technical Field

The invention relates to the technical field of waste recycling, in particular to a metal smelting slag recycling method.

Background

The existing metal smelting slag has the problems of large stacking occupied area and difficult recovery due to huge yield and more varieties, the slag of the metals cannot be recycled, the waste of the economic aspect is undoubtedly caused, the slag of the metals can be reduced by recycling the slag, when the metal smelting slag is reused, the metal smelting slag needs to be crushed and ground, and the metal smelting slag which is crushed and ground is taken as a raw material to be manufactured into regenerative sand blasting.

However, the following problems exist when the conventional metal smelting furnace slag is crushed and ground, namely a, the conventional metal smelting furnace slag cannot be completely crushed, so that the metal smelting furnace slag is not uniformly crushed, and the utilization rate of the metal smelting furnace slag is reduced; b, the existing metal smelting furnace slag can not be uniformly ground during crushing and grinding, and the phenomenon of clamping of crushing equipment often occurs due to the high hardness of the metal smelting furnace slag, so that the crushing and grinding efficiency and quality of the metal smelting furnace slag are reduced.

Disclosure of Invention

In order to solve the problems, the invention provides a method for recycling and reusing the metal smelting slag, which can solve the problems existing in the process of crushing and grinding the metal smelting slag mentioned above.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a metal smelting slag recycling method mainly comprises the following steps:

step one, raw material classification, namely preparing metal smelting furnace slag, and classifying the metal smelting furnace slag to obtain metal furnace slag;

step two, crushing and grinding, namely conveying the metal slag obtained in the step one to metal slag crushing and grinding equipment to carry out crushing and grinding treatment on the metal slag to obtain slag powder after crushing and grinding;

and step three, adjusting, namely performing acid-base adjustment on the crushed and ground slag powder obtained in the step two, and adding other chemical reagents to obtain the prepared regenerative sand blasting.

The metal slag crushing and grinding equipment used in the steps comprises a base plate, a crushing device, an extruding device and a grinding device, wherein the crushing device is installed on the base plate, the extruding device is installed on the crushing device, and the grinding device is installed on the right side of the base plate.

The crushing device comprises a flat plate, a top plate, a positioning round rod, an inclined plate, a crushing cutter, a top block, a connecting rod, a lower pressure rod, a sliding rod, a square plate, a straight plate, a first motor, a square rod, a sliding round rod, a semicircular plate and a baffle plate, wherein the flat plate is symmetrically arranged on the bottom plate from front to back, the top plate is arranged on the upper part of the left side between the inner walls of the flat plates, the positioning round rod is arranged on the right side of the top plate between the inner walls of the flat plates through a bearing, the inclined plate is arranged on the positioning round rod, the crushing cutters are uniformly arranged on the inner walls of the inclined plate and the top plate from the upper side to the lower side, the top block is symmetrically arranged on the front and back of the lower side of the outer wall of the right end of the inclined plate, the square plate is arranged in the middle part between the inner walls of the flat plates, connecting rod left end is installed between the kicking block inner wall through the round pin axle, the semicircle board is installed to the slide bar upper end, the indent has been seted up down on the semicircle board right-hand member outer wall, straight board is installed on square plate upper end middle part right side, install a motor on the straight board right-hand member outer wall, a motor output passes straight board and installs the square pole, install the slip round bar on the square pole, and the slip round bar passes through sliding fit's mode and installs under the indent, lie in the roof downside between the dull and stereotyped inner wall and install the baffle, can carry out stable crushing operation to the metal smelting slag, the crushing efficiency of metal smelting slag has been improved.

The extrusion device comprises a partition plate, a clamping plate, a rotary round rod, an extrusion round roller, extrusion knives, driven gears, power round plates, U-shaped plates and a motor II, wherein the partition plate is connected between the inner walls of the flat plates on the right side of the partition plate, the clamping plate is arranged between the inner walls of the flat plates on the right side of the partition plate, the rotary round rods are symmetrically arranged on the inner walls of the flat plates on the rear end of the bottom plate and between the partition plate and the inner walls of the clamping plate through bearings in the left-right direction, the driven gears are arranged at the front ends of the rotary round rods through the flat plates on the front ends of the bottom plate, the extrusion round rollers are arranged on the rotary round rods between the inner walls of the flat plates, the extrusion knives are uniformly arranged on the outer walls of the extrusion round rollers along the circumferential direction of the extrusion round rollers, the extrusion knives on the extrusion round rollers are mutually matched for, round grooves are formed in the power circular plate, tooth grooves are uniformly formed in the inner wall of each round groove along the circumferential direction of the round groove, the tooth grooves and the driven gear are matched with each other for use, secondary crushing operation can be performed on the metal smelting furnace slag, and the crushing quality of the metal smelting furnace slag is improved.

As a preferred technical scheme of the invention, the grinding device comprises a grinding round box, a third motor, a feeding plate, an inclined plane circular plate, a transmission round rod, a positioning circular plate, a round screen, a flat rod, a return plate, a return spring rod, a fan panel, an arc-shaped cutter and a grinding roller, wherein a round through groove is formed in the right side of the bottom plate, the grinding round box is arranged on the inner wall of the round through groove, a grinding round groove is formed in the grinding round box, a feeding hole is formed in the inner wall of the left end of the grinding round groove, the feeding plates are arranged on the inner walls of the upper end and the lower end of the feeding hole, the front end and the rear end of the feeding plate are respectively connected to the inner walls of the flat plates at the front end and the rear end of the bottom plate, the left end of the feeding plate at the upper end of the feeding hole is connected to a clamping plate, the left end of the, a positioning circular plate is arranged between the inner walls of the grinding circular grooves and positioned at the upper side of the feeding port, sliding holes are uniformly formed in the positioning circular plate along the circumferential direction of the positioning circular plate, a flat rod is arranged in each sliding hole in a sliding fit mode, the upper end of each flat rod abuts against the inclined plane circular plate, return plates are symmetrically arranged on the outer walls of the flat rods, return spring rods are arranged at the lower ends of the return plates, the lower ends of the return spring rods are connected to the positioning circular plate, a sector plate is arranged at the lower end of each flat rod, arc-shaped cutters are uniformly arranged on the outer walls of the lower ends of the sector plates, a circular screen is arranged between the inner walls of the grinding circular grooves and positioned at the lower side of the feeding port, circular through grooves are formed in the circle centers of the circular screen and the positioning circular plate, a transmission circular rod is arranged at the circle center of the lower end of the inclined plane circular plate, grinding rollers are, the crushing and grinding operation can be carried out on the metal smelting furnace slag, and the recycling efficiency of the metal smelting furnace slag is improved.

As a preferred technical scheme of the invention, the lower end of the bottom plate is uniformly provided with the supporting rods, so that a stable working environment is provided for crushing and grinding the metal smelting slag.

As a preferred technical scheme of the invention, the upper end of the flat rod is hemispherical, the upper end of the flat rod and the inclined circular plate are matched with each other for use, the sector plates are mutually combined into circular ring plates, and the arc-shaped cutters are mutually combined into circular ring cutters, so that the arc-shaped cutters can more completely crush the metal smelting slag.

As a preferred technical scheme of the invention, the U-shaped panel is arranged at the lower end of the bottom plate at the position opposite to the discharge arc surface groove, and the collecting box is arranged on the U-shaped panel and can collect the metal smelting slag after crushing and grinding.

As a preferable technical scheme of the invention, the semicircular plate is provided with a lower pressing groove, the upper end of the lower pressing groove is a semicircular groove, and the lower sides of the semicircular groove are communicated and provided with a transverse groove. So that the sliding round rod can drive the semicircular plate to perform linear reciprocating motion.

The invention has the beneficial effects that:

1. the invention can solve the following problems existing in the prior metal smelting furnace slag crushing and grinding, a, when the traditional metal smelting furnace slag is crushed, the metal smelting furnace slag can not be completely crushed, so that the metal smelting furnace slag is crushed unevenly, and the utilization rate of the metal smelting furnace slag is reduced; b, the existing metal smelting furnace slag can not be uniformly ground during crushing and grinding, and the phenomenon of clamping of crushing equipment often occurs due to the high hardness of the metal smelting furnace slag, so that the crushing and grinding efficiency and quality of the metal smelting furnace slag are reduced.

2. The crushing device designed by the invention can crush the metal smelting furnace slag through the crushing knife, and the inclined plate drives the crushing knife to swing and extrude, so that the phenomenon of blockage of the metal smelting furnace slag can not occur, and the crushing efficiency and quality of the metal smelting furnace slag are improved.

3. The extrusion device designed by the invention drives the extrusion knife to rotate through the extrusion round roller, so that the extrusion knife can perform extrusion crushing operation on the metal smelting furnace slag again, the metal smelting furnace slag is crushed more uniformly, and the crushing quality of the metal smelting furnace slag is improved.

4. The grinding device designed by the invention can crush the metal smelting furnace slag through the fan panel and the arc-shaped knife, so that the metal smelting furnace slag reaches the size needing to be crushed, and the utilization rate of the metal smelting furnace slag is improved through the grinding operation of the grinding roller on the metal smelting furnace slag.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the operation of the present invention;

FIG. 2 is a schematic view showing the construction of the metal slag crushing and grinding apparatus of the present invention;

FIG. 3 is a partial cross-sectional view of FIG. 2 of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;

FIG. 5 is an enlarged view of a portion of the invention at K of FIG. 3;

FIG. 6 is a schematic view of a portion of the crushing apparatus of the present invention;

FIG. 7 is a partial schematic view of the extrusion apparatus of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in FIGS. 1 to 7, a method for recycling and reusing a metal smelting slag mainly comprises the following steps:

The metal slag crushing and grinding equipment used in the steps comprises a base plate 1, a crushing device 2, an extrusion device 3 and a grinding device 4, wherein the crushing device 2 is installed on the base plate 1, the extrusion device 3 is installed on the crushing device 2, and the grinding device 4 is installed on the right side of the base plate 1.

The crushing device 2 comprises flat plates 2a, a top plate 2b, positioning round rods 2c, inclined plates 2d, crushing cutters 2e, a top block 2f, a connecting rod 2g, a lower pressing rod 2h, a sliding rod 2k, square plates 2l, straight plates 2m, a first motor 2n, square rods 2o, a sliding round rod 2p, a semi-circular plate 2q and a baffle plate 2r, wherein the flat plates 2a are symmetrically arranged on the bottom plate 1 in the front-back direction, the top plate 2b is arranged on the upper portion of the left side between the inner walls of the flat plates 2a, the positioning round rods 2c are arranged on the right side of the top plate 2b through bearings on the upper portion between the inner walls of the flat plates 2a, the inclined plates 2d are arranged on the positioning round rods 2c, the crushing cutters 2e are uniformly arranged on the inner walls of the inclined plates 2d and the inner walls of the top plate 2b from the upper side to the lower side, the top blocks 2f, a square hole is arranged on a square plate 2l, a sliding rod 2k is arranged in the square hole in a sliding fit mode, a lower pressing rod 2h is arranged at the lower end of the sliding rod 2k, a straight groove is arranged at the left end of the lower pressing rod 2h, a connecting rod 2g is arranged between the inner walls of the front end and the rear end of the straight groove through a pin shaft, the left end of the connecting rod 2g is arranged between the inner walls of a top block 2f through the pin shaft, a semicircular plate 2q is arranged at the upper end of the sliding rod 2k, a lower pressing groove is arranged on the outer wall of the right end of the semicircular plate 2q, a straight plate 2m is arranged on the right side of the middle part of the upper end of the square plate 2l, a first motor 2n is arranged on the outer wall of the right end of the straight plate, and the sliding round rod 2p is arranged in the lower pressing groove in a sliding fit mode, and a baffle 2r is arranged between the inner walls of the flat plates 2a and positioned at the lower side of the top plate 2 b.

The semicircular plate 2q is provided with a lower pressure groove, the upper end of the lower pressure groove is a semicircular groove, and the lower side of the semicircular groove is communicated with a transverse groove.

The lower end of the bottom plate 1 is uniformly provided with supporting rods 11.

During specific work, in the manual work carries metal slag in the clearance between roof 2b and the swash plate 2d, a motor 2n drives square bar 2o and rotates, square bar 2o drives slip round bar 2p and rotates, make slip round bar 2p slide in the lower indent on half-round plate 2q, make slip round bar 2p drive half-round plate 2q and carry out straight reciprocating motion, half-round plate 2q drives slide bar 2k and carries out straight reciprocating motion, slide bar 2k drives depression bar 2h down and carries out straight reciprocating motion, depression bar 2h drives connecting rod 2g down and rotates, connecting rod 2g drives swash plate 2d through kicking block 2f and uses location round bar 2c to rotate as the centre of a circle, make the broken sword 2e on swash plate 2d and the roof 2b carry out crushing treatment to metal slag.

The extrusion device 3 comprises a partition plate 31, a clamping plate 32, a rotary round rod 33, an extrusion round roller 34, an extrusion knife 35, a driven gear 36, a power round plate 37, a U-shaped plate 38 and a second motor 39, wherein the partition plate 31 is connected between the inner walls of the flat plates 2a at the right side of the baffle 2r, the clamping plate 32 is arranged between the inner walls of the flat plates 2a at the right side of the partition plate 31, the rotary round rod 33 is symmetrically arranged between the inner walls of the partition plate 31 and the clamping plate 32 on the left and right sides of the inner wall of the flat plate 2a at the upper rear end of the bottom plate 1 through a bearing, the driven gear 36 is arranged at the front end of the rotary round rod 33 through the flat plate 2a at the upper front end of the bottom plate 1, the extrusion round roller 34 is arranged between the inner walls of the flat plates 2a on the rotary round rod 33, the extrusion knives 35 are uniformly arranged on the outer wall of the extrusion round roller 34 along the circumferential direction, the, install No. two motors 39 on the U-shaped board 38 inner wall, No. two motors 39 output end installs power plectane 37, has seted up the circle recess on the power plectane 37, evenly is provided with the tooth's socket along its circumferential direction on the circle recess inner wall, and mutually supports the use between tooth's socket and the driven gear 36.

During specific work, after the metal slag is crushed, the metal slag slides down to the extrusion round roller 34 through the baffle 2r, the second motor 39 drives the power circular plate 37 to rotate, the power circular plate 37 is matched with the driven gear 36 through the tooth grooves, the power circular plate 37 drives the driven gear 36 to rotate, the driven gear 36 drives the rotary round rod 33 to rotate, the rotary round rod 33 drives the extrusion round roller 34 to rotate, the extrusion round roller 34 drives the extrusion knife 35 to rotate, and the extrusion knife 35 extrudes the crushed metal slag.

The grinding device 4 comprises a grinding round box 4a, a third motor 4b, a feeding plate 4c, an inclined plane round plate 4d, a transmission round rod 4e, a positioning round plate 4f, a round screen mesh 4g, a flat rod 4h, a return plate 4i, a return spring rod 4j, a sector plate 4k, an arc-shaped cutter 4l and a grinding roller 4m, wherein a round through groove is formed in the right side of the base plate 1, the grinding round box 4a is installed on the inner wall of the round through groove, a grinding round groove is formed in the grinding round box 4a, a feeding hole is formed in the inner wall of the left end of the grinding round groove, the feeding plates 4c are installed on the inner walls of the upper end and the lower end of the feeding hole, the front end and the rear end of the feeding plate 4c are respectively connected to the inner walls of the flat plates 2a at the front end and the rear end of the base plate 1, the left end of the feeding plate 4c at the upper end of the feeding hole is connected to the clamping plate, an inclined circular plate 4d is arranged at the output end of a third motor 4b which penetrates through a grinding circular box 4a, a positioning circular plate 4f is arranged between the inner walls of grinding circular grooves and positioned at the upper side of a feeding hole, sliding holes are uniformly formed in the positioning circular plate 4f along the circumferential direction of the positioning circular plate, a flat rod 4h is arranged in each sliding hole in a sliding fit mode, the upper end of each flat rod 4h is abutted against the inclined circular plate 4d, return plates 4i are symmetrically arranged on the outer walls of the flat rods 4h, return spring rods 4j are arranged at the lower ends of the return plates 4i, the lower ends of the return spring rods 4j are connected to the positioning circular plate 4f, a sector plate 4k is arranged at the lower end of each flat rod 4h, arc-shaped cutters 4l are uniformly arranged on the outer wall of the lower end of each sector plate 4k, a circular screen 4g is arranged at the lower side of the feeding hole between the inner walls of the grinding circular grooves, circular screen 4g, the lower end of the transmission round rod 4e penetrates through the round through groove to be provided with a grinding roller 4m, the grinding roller 4m and the inner wall of the grinding round box 4a are matched with each other for use, and the inner wall of the lower end of the grinding round box 4a is uniformly provided with a discharging cambered surface groove along the circumferential direction.

The upper end of the flat rod 4h is in a hemispherical shape, the upper end of the flat rod 4h and the inclined circular plate 4d are matched with each other for use, the sector plates 4k are combined into a circular ring plate, and the arc-shaped cutters 4l are combined into a circular ring cutter.

The lower end of the bottom plate 1 is provided with a U-shaped panel 12 at the position opposite to the discharging cambered surface groove, and the U-shaped panel 12 is provided with a collecting box 13.

When the metal slag crushing operation is completed by the extruding cutter 35, the metal slag slides onto the circular screen mesh 4g through the feeding plate 4c, the third motor 4b drives the inclined circular plate 4d to rotate, when the lowest point of the inclined surface of the inclined circular plate 4d is tightly abutted against the flat rod 4h, the inclined circular plate 4d drives the flat rod 4h to move towards the lower end, the flat rod 4h drives the sector plate 4k to move towards the lower end, the sector plate 4k drives the arc-shaped cutter 4l to move towards the lower end, so that the arc-shaped cutter 4l performs beating and crushing treatment on the metal slag remained on the circular screen mesh 4g, meanwhile, the flat rod 4h drives the return plate 4i to move towards the lower end, the return plate 4i drives the return spring rod 4j to move, so that the return spring rod 4j is in a compressed state, when the inclined circular plate 4d rotates to the highest point of the inclined surface to be tightly abutted against the flat rod 4h, under the resilience effect of the return spring rod 4j, make return spring lever 4j drive return plate 4i upward end motion, return plate 4i drives flat bar 4h upward end motion, it is repeated so, make 4l of arc sword can beat broken handle to remaining metal slag on the circular screen 4g in succession, when No. three motor 4b drive inclined plane plectane 4d pivoted, inclined plane plectane 4d drives transmission round bar 4e and rotates, transmission round bar 4e drives grinding roller 4m and rotates, make grinding roller 4m carry out abrasive treatment to the metal slag from the circular screen 4g falls down, the metal slag of grinding completion falls into collection box 13 through ejection of compact cambered surface groove. The metal slag can be ground.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A metal smelting slag recycling method is characterized by comprising the following steps: the method mainly comprises the following steps:

step three, adjusting, namely performing acid-base adjustment on the crushed and ground slag powder obtained in the step two, and adding other chemical reagents to obtain the prepared regenerative sand blasting;

the metal slag crushing and grinding equipment used in the steps comprises a base plate (1), a crushing device (2), an extruding device (3) and a grinding device (4), wherein the crushing device (2) is installed on the base plate (1), the extruding device (3) is installed on the crushing device (2), and the grinding device (4) is installed on the right side of the base plate (1);

the crushing device (2) comprises a flat plate (2a), a top plate (2b), a positioning round rod (2c), an inclined plate (2d), a crushing cutter (2e), a top block (2f), a connecting rod (2g), a lower pressure rod (2h), a sliding rod (2k), a square plate (2l), a straight plate (2m), a first motor (2n), a square rod (2o), a sliding round rod (2p), a semicircular plate (2q) and a baffle (2r), wherein the flat plate (2a) is symmetrically arranged on the bottom plate (1) from front to back, the top plate (2b) is arranged on the upper portion of the left side between the inner walls of the flat plates (2a), the positioning round rod (2c) is arranged on the right side of the top plate (2b) on the upper portion between the inner walls of the flat plates (2a), the inclined plate (2d) is arranged on the inner walls of the inclined plate (2d) and the top plate (2b) from the upper side to the lower side, ejector blocks (2f) are symmetrically arranged at the front and back of the lower side of the outer wall of the right end of an inclined plate (2d), a square plate (2l) is arranged in the middle between the inner walls of flat plates (2a), a square hole is formed in the square plate (2l), a sliding rod (2k) is arranged in the square hole in a sliding fit mode, a lower pressing rod (2h) is arranged at the lower end of the sliding rod (2k), a straight groove is formed in the left end of the lower pressing rod (2h), a connecting rod (2g) is arranged between the inner walls of the front end and the rear end of the straight groove through a pin shaft, the left end of the connecting rod (2g) is arranged between the inner walls of the ejector blocks (2f) through a pin shaft, a semicircular plate (2q) is arranged at the upper end of the sliding rod (2k), a lower pressing groove is formed in the outer wall of the right end of the semicircular plate (2q), a straight plate (2m) is arranged on the right side of the middle of the upper, a sliding round rod (2p) is arranged on the square rod (2o), the sliding round rod (2p) is arranged in the lower pressing groove in a sliding fit mode, and a baffle (2r) is arranged between the inner walls of the flat plates (2a) and positioned at the lower side of the top plate (2 b);

the extrusion device (3) comprises a partition plate (31), a clamping plate (32), a rotary round rod (33), an extrusion round roller (34), an extrusion knife (35), a driven gear (36), a power circular plate (37), a U-shaped plate (38) and a second motor (39), wherein the partition plate (31) is connected to the right side of the baffle plate (2r) between the inner walls of the flat plates (2a), the clamping plate (32) is installed on the right side of the partition plate (31) between the inner walls of the flat plates (2a), the rotary round rods (33) are symmetrically installed on the left and right sides of the inner walls of the partition plate (31) and the clamping plate (32) on the inner walls of the flat plates (2a) at the upper rear end of the bottom plate (1) through bearings, the front end of the rotary round rod (33) penetrates through the flat plate (2a) at the upper front end of the bottom plate (1) to install the driven gear (36), the extrusion round roller (, evenly install extrusion sword (35) along its circumference direction on extrusion circle roller (34) outer wall, and use of mutually supporting between extrusion sword (35) on extrusion circle roller (34), install U template (38) on dull and stereotyped (2a) outer wall that is located bottom plate (1) front end, install No. two motor (39) on U template (38) inner wall, power plectane (37) are installed to No. two motor (39) output, the circular recess has been seted up on power plectane (37), evenly be provided with the tooth's socket along its circumference direction on the circular recess inner wall, and use of mutually supporting between tooth's socket and driven gear (36).

2. The method for recycling and reusing the metallurgical slag according to claim 1, wherein: the grinding device (4) comprises a grinding round box (4a), a third motor (4b), a feeding plate (4c), an inclined circular plate (4d), a transmission circular rod (4e), a positioning circular plate (4f), a circular screen (4g), a flat rod (4h), a return plate (4i), a return spring rod (4j), a fan panel (4k), an arc-shaped knife (4l) and a grinding roller (4m), wherein a circular through groove is formed in the right side of the base plate (1), the grinding round box (4a) is installed on the inner wall of the circular through groove, the grinding round groove is formed in the grinding round box (4a), a feeding hole is formed in the inner wall of the left end of the grinding round groove, the feeding plate (4c) is installed on the inner walls of the upper end and the lower end of the feeding hole, the front end and the rear end of the feeding plate (4c) are respectively connected to the inner walls of the flat plates (2a) at the front end and the rear end of the base plate (1), the left end of a feeding plate (4c) positioned at the lower end of a feeding port is connected to a partition plate (31), a third motor (4b) is installed at the circle center of the upper end of a grinding circular box (4a), an inclined circular plate (4d) is installed at the position where the output end of the third motor (4b) penetrates through the grinding circular box (4a), a positioning circular plate (4f) is installed at the upper side of the feeding port between the inner walls of grinding circular grooves, sliding holes are evenly formed in the positioning circular plate (4f) along the circumferential direction of the positioning circular plate, a flat rod (4h) is installed in each sliding hole in a sliding fit mode, the upper end of each flat rod (4h) is tightly abutted to the inclined circular plate (4d), return plates (4i) are symmetrically installed on the outer wall of each flat rod (4h), return spring rods (4j) are installed at the lower ends of the return plates (4i), the lower ends of the return spring rods (4j) are connected, evenly install arc sword (4l) on sector plate (4k) lower extreme outer wall, it installs circular screen cloth (4g) to lie in the feed inlet downside between the grinding circular slot inner wall, the circle center department of a circle of circular screen cloth (4g) and the circle center department of location plectane (4f) have all seted up the circle and have led to the groove, transmission round bar (4e) are installed to inclined plane plectane (4d) lower extreme centre of a circle department, transmission round bar (4e) lower extreme passes the circle and leads to the groove and install grinding roller (4m), and grind roller (4m) and grind between circular case (4a) the inner wall and mutually support the use, grind evenly seted up ejection of compact cambered surface groove along its circumference direction on circular case (4a) lower.

3. The method for recycling and reusing the metallurgical slag according to claim 1, wherein: the lower end of the bottom plate (1) is uniformly provided with a support rod (11).

4. The method for recycling and reusing the metallurgical slag according to claim 2, wherein: the upper end of the flat rod (4h) is hemispherical, the upper end of the flat rod (4h) and the inclined circular plate (4d) are matched with each other for use, the fan panels (4k) are combined into a circular plate, and the arc-shaped cutters (4l) are combined into a circular cutter.

5. The method for recycling and reusing the metallurgical slag according to claim 2, wherein: the lower end of the bottom plate (1) is provided with a U-shaped panel (12) at the position opposite to the discharging arc surface groove, and the U-shaped panel (12) is provided with a collecting box (13).

6. The method for recycling and reusing the metallurgical slag according to claim 1, wherein: the semicircular plate (2q) is provided with a lower pressure groove, the upper end of the lower pressure groove is a semicircular groove, and the lower side of the semicircular groove is communicated with a transverse groove.