CN117000348A - Scrap steel recycling device and method - Google Patents

Abstract

The application relates to the technical field of scrap steel recycling, in particular to a scrap steel recycling device and method. According to the adjusting component adopted by the application, the position of the fourth gear can be adjusted by adjusting the position of the sliding part of the sliding rail pair, so that the fourth gear is far away from or close to the first gear, and therefore, the crushing roller connected with the fourth gear shaft moves, the function of adjusting the roller spacing between the crushing pair rollers is realized, the purpose of crushing the steel scraps into particles with the required size by adopting one crushing pair roller is realized, and compared with the mode of adopting a plurality of crushing mechanisms in the prior art, the number of the crushing pair rollers is reduced, and the manufacturing cost is further reduced; the chute structure is provided with scales, the roll gap between the crushing pair rolls can be calculated according to the required particle size, when the adjustment is carried out, only the positions of scales where the fourth gear is positioned are needed to be observed, the tedious operation of measuring while adjusting is not needed, the labor intensity of workers is greatly reduced, and the working efficiency is improved.

Description

Scrap steel recycling device and method

Technical Field

The application relates to the technical field of scrap steel recycling, in particular to a scrap steel recycling device and method.

Background

Scrap steel refers to steel scraps (such as trimming edges, cutting heads and the like) which are not products in the production process of steel plants, and steel materials in equipment and components scrapped after use, wherein the components are called scrap steel of steel; the iron scrap, which is called scrap iron, is commonly referred to as scrap steel.

In the prior art, the scrap steel crushing, recycling and reutilizing device is characterized in that a plurality of crushing mechanisms are arranged at equal intervals in the circumferential direction of a cylindrical frame, and the intervals between two crushing rollers of each crushing mechanism are different, so that the scrap steel is crushed into particles with a required size; but prior art needs to use a plurality of crushing mechanisms, has the defect that the cost of manufacture is big to still need to cooperate the position of adjusting other structures (flexible copper pipe) when adjusting crushing mechanism position, accommodation process is comparatively loaded down with trivial details, and does not have automatic feeding's function, in need the manual work to remove the higher feeder hopper in position with the steel scrap, and then lead to workman's intensity of labour big, and the transfer time is long, leads to the work efficiency of device low.

Disclosure of Invention

The application aims to solve the technical problems that: aiming at the defects of the prior art, the device and the method for recycling the scrap steel are convenient to operate, high in working efficiency and low in cost for recycling the scrap steel.

In order to solve the technical problems, the application adopts the following technical scheme:

1. scrap steel recycling device

The application provides a scrap steel recycling device, which comprises a base 1, wherein a crushing box 2 is arranged at the top of the base 1, a feeding hole is formed in the top surface of the crushing box 2, a discharging hole is formed in the bottom surface of the crushing box 2, a crushing pair roller 3 for crushing scrap steel is arranged in an inner cavity of the crushing box 2, an adjusting component 4 for adjusting the roller spacing between the crushing pair roller 3 is further arranged on the side part of the crushing box 2, the adjusting component 4 comprises a sliding rail pair 45 horizontally arranged on the side part of the crushing box 2, a first gear 41, a second gear 42, a third gear 43 and a fourth gear 44 which are meshed with each other in sequence, a wheel shaft of the first gear 41 is connected to a fixing part of the sliding rail pair 45 and is coaxially connected with one crushing roller of the crushing pair roller 3, a wheel shaft of the fourth gear 44 is connected to a sliding part of the sliding rail pair 45 and is coaxially connected with the other crushing roller of the crushing pair roller 3, and a driving mechanism 6 for driving the first gear 41 to rotate is further arranged on the side part of the base 1.

Preferably, the slide rail pair 45 includes a slide groove structure 451, a slider 452 is slidably connected to the slide groove structure 451, an adjusting screw pair 453 is inserted at an end of the slide groove structure 451, an adjusting nut of the adjusting screw pair 453 is connected with the slider 452, an axle of the first gear 41 is connected to a side wall of the slide groove structure 451, and an axle of the fourth gear 44 is connected to the slider 452.

Preferably, scale marks for reading the axial distance between the first gear 41 and the fourth gear 44 are provided on the side wall of the chute structure 451.

Preferably, the first gear 41 is rotatably connected to one end of the first connecting rod 46, the other end of the first connecting rod 46 is rotatably connected to the second gear 42, the second gear 42 is rotatably connected to one end of the second connecting rod 47, the other end of the second connecting rod 47 is rotatably connected to the third gear 43, the third gear 43 is rotatably connected to one end of the third connecting rod 48, and the other end of the third connecting rod 48 is rotatably connected to the fourth gear 44.

Preferably, the front end surface of the crushing box 2 is also provided with a lifting mechanism 5 for lifting and pouring the scrap steel into a feed inlet of the crushing box 2, the lifting mechanism 5 comprises an inclined plate 51 obliquely arranged on the front end surface of the crushing box 2, the inclined plate 51 is arranged above the feed inlet and provided with a feed inlet 511, and a diversion pipeline 52 is arranged between the feed inlet 511 and the feed inlet; the upper plate surface of the inclined plate 51 is slidably connected to a lifting hopper 53 along the length direction thereof.

Preferably, two sides of the upper plate surface of the inclined plate 51 are respectively provided with a sliding rail 54 arranged along the length direction of the inclined plate, each sliding rail 54 is provided with a linear motor 55, and the linear motors 55 are fixedly connected with the lifting hoppers 53.

Preferably, the driving mechanism 6 includes a driving shaft 61 rotatably connected to a side portion of the base 1, the driving shaft 61 is connected to a first gear 41 in the adjusting assembly 4 through a transmission belt, and a driving motor 62 is further disposed at an end portion of the driving shaft 61.

Preferably, a guide plate 7 is arranged right below the discharge hole of the crushing box 2, the guide plate 7 is fixedly connected to the inner wall of the base 1, and the outer end of the guide plate 7 extends to the outer side of the base 1.

Preferably, the two groups of adjusting assemblies 4 are provided, and the two groups of adjusting assemblies 4 are respectively provided with two sides of the crushing box 2 and are respectively and correspondingly connected with two ends of the crushing pair roller 3.

2. Scrap steel recycling method

Based on the same inventive concept, the application also provides a scrap steel recycling method, which adopts the scrap steel recycling device, and specifically comprises the following steps:

s1, transporting scrap steel to be recovered into a lifting hopper of a lifting mechanism;

s2, starting a linear motor, controlling a lifting hopper to rise at an initial speed, and conveying scrap steel into a feeding hole on the top surface of the crushing box;

s3, adjusting the roller spacing of the crushing pair rollers to an initial spacing through an adjusting assembly;

s4, starting a driving motor, controlling the crushing pair roller to run at an initial rotating speed, and preprocessing the steel scraps in the crushing box;

s5, according to the feeding flow demand of the diversion pipeline, the lifting speed of the lifting hopper is adjusted in real time by controlling the linear motor;

s6, according to the crushing grain size requirement of the scrap steel, the roller spacing of the crushing pair roller is adjusted in real time through the adjustment component matched with scale marks on the side wall of the chute structure;

s7, according to the waste steel crushing treatment capacity requirement, the running rotating speed of the crushing pair roller is adjusted in real time by controlling a driving motor;

s8, opening a discharge hole on the bottom surface of the crushing box, and guiding and collecting crushed steel scrap particles through a guide plate.

Compared with the prior art, the application has the following main advantages:

1. according to the adjusting component adopted by the application, the position of the fourth gear can be adjusted by adjusting the position of the sliding part of the sliding rail pair, so that the fourth gear is far away from or close to the first gear, and therefore, the crushing roller connected with the fourth gear shaft moves, the function of adjusting the roller spacing between the crushing pair rollers is realized, the purpose of crushing the steel scraps into particles with the required size by adopting one crushing pair roller is realized, and compared with the mode of adopting a plurality of crushing mechanisms in the prior art, the number of the crushing pair rollers is reduced, and the manufacturing cost is further reduced;

2. the chute structure adopted by the application is provided with the scales, so that the roll gap between the crushing pair rolls can be calculated according to the required particle size, and when the adjustment is carried out, only the position of the scales where the fourth gear is positioned is needed to be observed, and the tedious operation of measuring while adjusting is not needed, so that the labor intensity of workers is greatly reduced;

3. according to the lifting mechanism, only a worker is required to carry the scrap steel into the lifting hopper with lower height, and then the lifting hopper is driven by the linear motor to move to the position of the feeding port, so that the scrap steel enters the feeding port of the crushing box, and the technical problems that in the prior art, the labor intensity of the worker is high, the carrying time is long and the working efficiency of the device is low due to the fact that the scrap steel is required to be manually carried into the feeding hopper with higher position are solved; meanwhile, the rising speed of the specific position of the linear motor can be regulated so as to control the amount of materials in the lifting hopper entering the diversion pipeline in unit time and prevent too much scrap steel in the crushing box from affecting the function of equipment operation;

4. the guide plate adopted by the application can guide the waste steel to one side of the device through the guide plate after breaking the waste steel into particles, so that the guided particles are gathered together, and the collection efficiency is improved.

Drawings

FIG. 1 is an overall schematic diagram of a scrap recycling device in an embodiment of the application;

FIG. 2 is a right side view of the scrap recycling apparatus in accordance with the embodiment of the present application;

FIG. 3 is a schematic view of a scrap recycling apparatus according to an embodiment of the present application;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of an adjusting assembly according to an embodiment of the present application;

FIG. 6 is a flow chart of a method for recycling scrap steel in an embodiment of the application.

In the figure: 1. a base; 2. a crushing box; 3. crushing the paired rollers; 4. an adjustment assembly; 41. a first gear; 42. a second gear; 43. a third gear; 44. a fourth gear; 45. a sliding rail pair; 451. a chute structure; 452. a slide block; 453. adjusting a screw pair; 46. a first link; 47. a second link; 48. a third link; 5. a lifting mechanism; 51. a sloping plate; 511. a material opening; 52. a diversion pipeline; 53. lifting the hopper; 54. a slide rail; 55. a linear motor; 6. a driving mechanism; 61. a drive shaft; 62. a driving motor; 7. and a deflector.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. In addition, the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of operations of the steps/components may be combined into new steps/components, according to the implementation needs, to achieve the object of the present application.

The first embodiment provides a scrap steel recycling device, as shown in fig. 1 to 5, which comprises a base 1, wherein a crushing box 2 is installed at the top of the base 1, the top surface of the crushing box 2 is provided with a feed inlet, the bottom surface of the crushing box 2 is provided with a discharge outlet, and a crushing pair roller 3 for crushing scrap steel is arranged in an inner cavity of the crushing box 2; the device further comprises an adjusting assembly 4 for adjusting the roll gap between the crushing pair of rolls 3, the adjusting assembly 4 comprising a horizontally arranged slide rail pair 45 and a first gear 41, a second gear 42, a third gear 43 and a fourth gear 44 which are meshed with each other in sequence (that is, the first gear 41 is meshed with the second gear 42, the second gear 42 is meshed with the third gear 43, and the third gear 43 is meshed with the fourth gear 44); it should be noted that the first gear 41 is not in contact with the fourth gear 44.

The axle of the first gear 41 is rotatably connected to the fixed part of the sliding rail pair 45 and is coaxially connected with one crushing roller of the crushing pair roller 3, and the axle of the fourth gear 44 is rotatably connected to the sliding part of the sliding rail pair 45 and is coaxially connected with the other crushing roller of the crushing pair roller 3;

specifically, the gears are coaxially and fixedly connected with the corresponding wheel shafts respectively, and can be connected through keys according to the requirements.

Further, as shown in fig. 5, the axle of the first gear 41 is rotatably connected to one end of the first link 46, and the other end of the first link 46 is rotatably connected to the axle of the second gear 42; the axle of the second gear 42 is rotatably connected with one end of a second connecting rod 47, and the other end of the second connecting rod 47 is rotatably connected with the axle of the third gear 43; the axle of the third gear 43 is rotatably connected with one end of a third connecting rod 48, and the other end of the third connecting rod 48 is rotatably connected with the axle of the fourth gear 44.

Further, the crushing box 2 has a space for movement of crushing rolls connected to the axle of the fourth gear 44.

Further, the device also comprises a driving mechanism 6 for driving the first gear 41 to rotate so as to drive the crushing pair of rollers 3 to operate.

The first gear 41 can be driven to rotate by the driving mechanism 6, the fourth gear 44 can be driven to rotate along with the first gear due to the meshing relationship between the gears, and the rotation direction of the fourth gear 44 is opposite to that of the first gear 41, so that the crushing of the scrap steel by the subsequent operation of the crushing pair roller 3 is realized.

Meanwhile, the position of the fourth gear 44 can be adjusted by adjusting the position of the sliding part of the sliding rail pair 45, so that the fourth gear 44 is far away from or close to the first gear 41, the crushing roller connected with the fourth gear 44 is enabled to move, the function of adjusting the roller spacing between the crushing pair rollers 3 is achieved, the purpose of crushing the waste steel into particles with the required size by adopting one crushing pair roller 3 is achieved, and compared with the mode of adopting a plurality of crushing mechanisms in the prior art, the number of the crushing pair rollers 3 is reduced, and the manufacturing cost is further reduced.

Further, in order to ensure the parallelism between the crushing pair rollers 3 and the stress balance of the crushing roller connected with the axle of the fourth gear 44, the adjusting assemblies 4 are provided with two groups, and are correspondingly connected with two ends of the crushing pair rollers 3 respectively.

Further, the driving mechanism 6 comprises a driving shaft 61 rotatably connected to the base 1 or the crushing box 2, and shaft bodies at two ends of the driving shaft 61 are in driving connection with the first gear 41 in the adjusting assembly 4 at the same side; the driving shaft 61 is in transmission connection with the wheel shaft of the first gear 41 through a chain group according to the requirement;

further, the driving mechanism 6 further comprises a driving motor 62 for driving the driving shaft 61 to rotate; the drive motor 62 is in driving connection with the drive shaft 61, specifically by means of a gear, a coupling or a worm gear, as required.

As shown in fig. 5, the slide rail pair 45 includes a slide groove structure 451, and the slide groove structure 451 is a slide rail member having a slide groove structure; the sliding chute structure 451 is slidably connected with a sliding block 452, the sliding chute structure 451 is also rotatably connected with an adjusting screw pair 453, and a screw nut of the adjusting screw pair 453 is correspondingly and fixedly connected with the sliding block 452; and the fourth gear 44 is rotatably connected to the slider 452;

further, it is convenient to adjust the roll gap between the crushing pair of rolls 3, and the chute structure 451 is provided with a scale for knowing the distance between the central axis of the first gear 41 and the central axis of the fourth gear 44.

When the particle size of the particles is known, the roll gap between the crushing pair rolls 3 is calculated according to the particle size, and the position of the scale where the fourth gear 44 is located is required to be observed during adjustment, so that the tedious operation of measuring while adjusting is not required.

In other embodiments, the slider 452 may also be driven by other components, such as a cylinder, a lead screw motor, and the like.

The second embodiment has basically the same principle and technical scheme as the first embodiment, but is different in that: in order to facilitate feeding, the scrap steel recycling device further comprises a lifting mechanism 5 for lifting scrap steel to the position above the feed inlet of the crushing box 2 and pouring the scrap steel into the feed inlet conveniently;

further, the lifting mechanism 5 specifically includes a sloping plate 51 obliquely disposed at one side of the crushing box 2, a through material opening 511 is disposed at a position of the sloping plate 51 directly above the material inlet of the crushing box 2, and a diversion pipeline 52 capable of diversion of the scrap steel passing through the material opening 511 into the material inlet of the crushing box 2 is disposed between the material opening 511 and the material inlet of the crushing box 2;

the upper plate surface of the inclined plate 51 is movably matched with a lifting hopper 53 along the length direction, and one side of the lifting hopper 53 corresponding to the inclined plate 51 is open.

Further, two side portions of the upper plate surface of the sloping plate 51 are respectively provided with a sliding rail 54 arranged along the length direction of the upper plate surface, a linear motor 55 is slidably arranged in the sliding rails 54, and the linear motor 55 is correspondingly and fixedly connected with the outer side wall of the lifting hopper 53 on the same side.

Further, both ends of the sliding rail 54 are provided with a limiting structure.

The arrangement can be lifted by the linear motor 55 to drive the lifting hopper 53 to move along the length direction of the sliding rail 54 until the lifting hopper 53 moves to the position of the material through hole 511, and the steel scraps in the lifting hopper 53 enter the guide pipeline 52 through the material through hole 511 and then enter the material inlet of the crushing box 2 through the guide pipeline 52.

Specifically, when the upper part of one side of the lifting hopper 53 close to the inclined plate 51 moves to the position of the material through hole 511, the lifting speed of the linear motor 55 can be adjusted so as to control the amount of material in the lifting hopper 53 entering the diversion pipeline 52 in unit time, and prevent too much scrap steel in the crushing box 2 from affecting the equipment operation.

In other embodiments, the lifting hopper 53 may be driven by a hoist or other device to move along the length direction of the sliding rail 54.

The third embodiment has basically the same principle and technical scheme as the first embodiment, but is different in that: the base 1 is provided with a guide plate 7 at a position right below the discharge hole of the crushing box 2, the outer end of the guide plate 7 extends to one side of the base 1, and the end face of the guide plate 7 is of a V-shaped structure.

The arrangement can be used for guiding the waste steel to one side of the device through the guide plate 7 after the waste steel is crushed into particles, and the outer end of the guide plate 7 is of a V-shaped structure, so that the guided particles are gathered together, and the collection is convenient.

In a fourth embodiment, based on the same inventive concept, the present example further provides a method for recycling scrap steel, and the apparatus for recycling scrap steel using the method for recycling scrap steel as described above, as shown in fig. 6, specifically includes the following steps:

s1, transporting scrap steel to be recovered into a lifting hopper of a lifting mechanism;

s2, starting a linear motor, controlling a lifting hopper to rise at an initial speed, and conveying scrap steel into a feeding hole on the top surface of the crushing box;

s3, adjusting the roller spacing of the crushing pair rollers to an initial spacing through an adjusting assembly;

s4, starting a driving motor, controlling the crushing pair roller to run at an initial rotating speed, and preprocessing the scrap steel in the crushing box;

s5, according to the feeding flow demand of the diversion pipeline, the lifting speed of the lifting hopper is adjusted in real time by controlling the linear motor;

s6, according to the crushing grain size requirement of the scrap steel, the roller spacing of the crushing pair roller is adjusted in real time through the adjustment component matched with scale marks on the side wall of the chute structure;

s7, according to the waste steel crushing treatment capacity requirement, the running rotating speed of the crushing pair roller is adjusted in real time by controlling a driving motor;

s8, opening a discharge hole on the bottom surface of the crushing box, and guiding and collecting crushed steel scrap particles through a guide plate.

Furthermore, the non-detailed description of the present application is the same as or implemented by the prior art.

To sum up:

1. according to the adjusting component adopted by the application, the position of the fourth gear can be adjusted by adjusting the position of the sliding part of the sliding rail pair, so that the fourth gear is far away from or close to the first gear, and therefore, the crushing roller connected with the fourth gear shaft moves, the function of adjusting the roller spacing between the crushing pair rollers is realized, the purpose of crushing the steel scraps into particles with the required size by adopting one crushing pair roller is realized, and compared with the mode of adopting a plurality of crushing mechanisms in the prior art, the number of the crushing pair rollers is reduced, and the manufacturing cost is further reduced;

2. the chute structure adopted by the application is provided with the scales, so that the roll gap between the crushing pair rolls can be calculated according to the required particle size, and when the adjustment is carried out, only the position of the scales where the fourth gear is positioned is needed to be observed, and the tedious operation of measuring while adjusting is not needed, so that the labor intensity of workers is greatly reduced;

3. according to the lifting mechanism, only a worker is required to carry the scrap steel into the lifting hopper with lower height, and then the lifting hopper is driven by the linear motor to move to the position of the feeding port, so that the scrap steel enters the feeding port of the crushing box, and the technical problems that in the prior art, the labor intensity of the worker is high, the carrying time is long and the working efficiency of the device is low due to the fact that the scrap steel is required to be manually carried into the feeding hopper with higher position are solved; meanwhile, the rising speed of the specific position of the linear motor can be regulated so as to control the amount of materials in the lifting hopper entering the diversion pipeline in unit time and prevent too much scrap steel in the crushing box from affecting the function of equipment operation;

4. the guide plate adopted by the application can guide the waste steel to one side of the device through the guide plate after breaking the waste steel into particles, so that the guided particles are gathered together, and the collection efficiency is improved.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the application and is not intended to limit the application, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.

Claims (10)

1. The utility model provides a scrap recycling device, its characterized in that, including base (1), broken case (2) are installed at base (1) top, broken case (2) top surface is equipped with feed inlet and bottom surface and is equipped with the discharge gate, broken case (2) inner chamber is equipped with broken pair roller (3) that are used for broken scrap, broken case (2) lateral part still is equipped with and is used for adjusting subassembly (4) of roll spacing between broken pair roller (3), adjusting subassembly (4) are including the level setting in the vice (45) of slide rail of broken case (2) lateral part and first gear (41), second gear (42), third gear (43) and fourth gear (44) of intermeshing in proper order, the shaft connection of first gear (41) is in the vice (45) fixed part of slide rail, and with broken pair roller coaxial coupling in roller (3), the shaft connection of fourth gear (44) is in the vice (45) sliding part of slide rail, and with broken pair roller coaxial coupling in roller (3), base (1) lateral part still is equipped with driving mechanism (6) that are used for first gear (41).

2. The scrap steel recycling device according to claim 1, wherein the sliding rail pair (45) comprises a sliding groove structure (451), a sliding block (452) is connected in the sliding groove structure (451), an adjusting screw pair (453) is inserted at the end of the sliding groove structure (451), an adjusting nut of the adjusting screw pair (453) is connected with the sliding block (452), a wheel shaft of the first gear (41) is connected to the side wall of the sliding groove structure (451), and a wheel shaft of the fourth gear (44) is connected to the sliding block (452).

3. A scrap recycling apparatus in accordance with claim 2, wherein the side wall of the chute structure (451) is provided with graduation marks for reading the axial distance between the first gear (41) and the fourth gear (44).

4. The scrap recycling device according to claim 1, wherein the first gear (41) is rotatably connected to one end of a first connecting rod (46), the other end of the first connecting rod (46) is rotatably connected to the second gear (42) is rotatably connected to one end of a second connecting rod (47), the other end of the second connecting rod (47) is rotatably connected to the third gear (43) is rotatably connected to one end of a third connecting rod (48), and the other end of the third connecting rod (48) is rotatably connected to the fourth gear (44) is rotatably connected to the other end of the third connecting rod.

5. The scrap steel recycling device according to claim 1, wherein the front end surface of the crushing box (2) is further provided with a lifting mechanism (5) for lifting scrap steel and pouring the scrap steel into a feed inlet of the crushing box (2), the lifting mechanism (5) comprises an inclined plate (51) obliquely arranged on the front end surface of the crushing box (2), the inclined plate (51) is provided with a feed inlet (511) at a position above the feed inlet, and a diversion pipeline (52) is arranged between the feed inlet (511) and the feed inlet; the upper plate surface of the inclined plate (51) is connected with a lifting hopper (53) in a sliding manner along the length direction of the inclined plate.

6. The scrap steel recycling device according to claim 5, wherein sliding rails (54) arranged along the length direction of the upper plate surface of the inclined plate (51) are arranged on two sides of the upper plate surface of the inclined plate, linear motors (55) are arranged on the sliding rails (54), and the linear motors (55) are fixedly connected with the lifting hopper (53).

7. A scrap recycling apparatus according to claim 1, characterized in that the driving mechanism (6) comprises a driving shaft (61) rotatably connected to the side of the base (1), the driving shaft (61) is connected to the first gear (41) wheel shaft of the adjusting assembly (4) through a transmission belt, and the driving motor (62) is further provided at the end of the driving shaft (61).

8. The scrap steel recycling device according to claim 1, wherein a guide plate (7) is arranged right below the discharge hole of the crushing box (2), the guide plate (7) is fixedly connected to the inner wall of the base (1), and the outer end of the guide plate (7) extends to the outer side of the base (1).

9. The scrap steel recycling device according to claim 1, wherein the two groups of adjusting assemblies (4) are arranged in total, the two groups of adjusting assemblies (4) are respectively arranged on two sides of the crushing box (2) and are respectively correspondingly connected with two ends of the crushing counter roller (3).

10. A scrap steel recycling method employing the scrap steel recycling apparatus according to any one of claims 1 to 9, comprising the steps of:

s1, transporting scrap steel to be recovered into a lifting hopper of a lifting mechanism;

s2, starting a linear motor, controlling a lifting hopper to rise at an initial speed, and conveying scrap steel into a feeding hole on the top surface of the crushing box;

s3, adjusting the roller spacing of the crushing pair rollers to an initial spacing through an adjusting assembly;

s4, starting a driving motor, controlling the crushing pair roller to run at an initial rotating speed, and preprocessing the scrap steel in the crushing box;

s5, according to the feeding flow demand of the diversion pipeline, the lifting speed of the lifting hopper is adjusted in real time by controlling the linear motor;

s6, according to the crushing grain size requirement of the scrap steel, the roller spacing of the crushing pair roller is adjusted in real time through the adjustment component matched with scale marks on the side wall of the chute structure;

s7, according to the waste steel crushing treatment capacity requirement, the running rotating speed of the crushing pair roller is adjusted in real time by controlling a driving motor;

s8, opening a discharge hole on the bottom surface of the crushing box, and guiding and collecting crushed steel scrap particles through a guide plate.