Environment-friendly steel slag crushing device and use method thereof

Abstract

The application relates to the technical field of solid waste recycling and crushing, and provides an environment-friendly steel slag crushing device and a use method thereof, which comprises a base, support frames are welded on the two sides of the base, a motor is installed on the support frame, an auxiliary shaft is coaxially connected with a driving shaft of the motor, U-shaped frames are arranged on the two sides of the auxiliary shaft, sleeve pipes of the first connecting rods are sleeved on the U-shaped frames, connecting shafts are connected to the other ends of the first connecting rods, swing frames and second connecting rods are installed on the connecting shafts, the other ends of the swing frames are sleeved on fixed shafts, the auxiliary components and the elastic plates are bidirectionally pushed after the motor rotates through the auxiliary shaft, energy consumption optimization can be realized, unit processing energy consumption can be reduced, and the defects that the existing steel slag crushing device is difficult to realize energy consumption optimization by adding auxiliary components and causes the unit processing energy consumption to be high for a long time can be overcome.

Description

Technical Field

[0001] This invention relates to the technical field of solid waste recycling and crushing, and in particular to an environmentally friendly steel slag crushing equipment and its usage method. Background Technology

[0002] Steel slag is the main solid waste generated during the steelmaking process. According to statistics, about 120-150 kilograms of steel slag are generated for every ton of crude steel produced. If not disposed of properly, it will impose a serious burden on the ecological environment. Recycling and reusing steel slag is not only an inevitable requirement for practicing the concept of circular economy and promoting green and low-carbon development, but also an important link for the steel industry to achieve sustainable development.

[0003] Currently, most steel slag crushing equipment uses a single motor drive, which limits the mechanical design and makes it difficult to optimize energy consumption by adding auxiliary components, resulting in persistently high unit processing energy consumption. In addition, due to the lack of a pre-crushing module, steel slag raw materials with uneven particle size directly enter the main crushing chamber, which not only increases the requirements for the rated power of the motor, but also easily causes abnormal wear and vibration of the equipment. Furthermore, although some equipment is equipped with a multi-stage crushing system, each functional unit requires an independent motor drive, resulting in a complex overall structure, increased manufacturing costs, and an inability to achieve efficient and coordinated energy utilization, causing significant resource waste. Summary of the Invention

[0004] This disclosure relates to an environmentally friendly steel slag crushing equipment and its usage method, aiming to reduce motor energy consumption and save resources while ensuring crushing efficiency; at the same time, it integrates a pre-crushing function and reduces energy consumption through a single motor coordinated drive.

[0005] In a first aspect, this disclosure provides an environmentally friendly steel slag crushing device and its method of use, specifically comprising: a base, a housing, and a motor; support frames are welded to both sides of the base, and a bottom box is snapped into the interior of the base; the motor is mounted on the support frames; an auxiliary shaft is coaxially connected to the drive shaft of the motor; both ends of the auxiliary shaft penetrate the housing, U-shaped frames are provided on both sides of the auxiliary shaft, and the ends of the auxiliary shaft are sleeved with bearings and snapped into the support frames; a feed inlet is provided at the top of the housing, a feed hopper is fixedly welded to the right side of the feed inlet and the top of the housing, and a feed hopper is fixedly welded to the front and rear sides of the housing respectively. A fixed plate is fixedly connected to the outer wall of the outer shell, and a fixed shaft is fixedly connected to it; side plates are fixedly welded to the front and rear sides of the feed hopper, and the side plates are rotatably connected to the biting crushing plate through a shaft; a sleeve at the end of the first connecting rod is sleeved on the U-shaped frame; a connecting shaft is snapped onto the other end of the first connecting rod; a swing frame and a second connecting rod are installed on the connecting shaft, and the other end of the swing frame is sleeved on the fixed shaft; a pushing block is rotatably connected to the other end of the second connecting rod through a shaft, and the pushing block, the connecting shaft, and the fixed shaft constitute an auxiliary component; an elastic plate is installed on the fixed plate, and the bottom end of the elastic plate is connected to the swing frame.

[0006] In at least some embodiments, the swing frame is provided with collars at both ends. The swing frame is installed inside the connecting cover at one end of the second connecting rod. The pushing block is fixedly welded to the left end face of the biting crushing plate. After the motor is started through the external control terminal, it coaxially drives the auxiliary shaft to rotate. After the U-shaped frame rotates, it drives the first connecting rod to move. The first connecting rod drives the swing frame and the second connecting rod to swing through the connecting shaft. The second connecting rod drives the pushing block to swing, thereby driving the biting crushing plate to pre-crush the steel slag. This reduces the demand for the high power of the motor, improves the crushing effect of steel slag, and reduces energy consumption, achieving the purpose of energy saving of the motor.

[0007] In at least some embodiments, a crushing plate is fixedly installed on the top inner side of the outer shell, a discharge port is opened at the bottom of the outer shell, a screen plate is installed on the bottom inner side of the outer shell, and inner spring telescopic sleeve rods are installed on the top of both ends of the screen plate. The inner spring telescopic sleeve rods are arc-shaped in general. The bottom sleeve is connected to the top of the screen plate by threaded fastening. An internal spring is provided inside the bottom sleeve. The top rod is fixedly connected to the bottom of the crushing plate, and a notch is opened on the outer side of the bottom of the crushing plate. When the motor is started, the steel slag put into the outer shell will vibrate during the crushing process. After the crushing plate squeezes the rod, the internal spring at the bottom of the inner spring telescopic sleeve rod will automatically reset due to its own elasticity. However, since the positions of the crushing plate and the rod are fixed, the screen plate will be pushed to swing. The notch on the outer side of the bottom of the crushing plate can meet the swing space requirements of the screen plate.

[0008] In at least some embodiments, a circular notch is provided on the left end face of the base box, and a movable wheel is installed on the bottom of the base box. The movable wheel is located in the groove on the top surface of the base. A handle frame is rotatably connected to the left end face of the base box via a shaft. The handle frame is engaged in the circular notch, and grooves are provided on the upper and lower sides of the crossbar of the handle frame. The grooves facilitate the lifting of the handle frame, which better meets the actual use needs.

[0009] In at least some embodiments, the feeding hopper and the biting crushing plate are respectively welded with biting teeth on their opposite sides, and the biting teeth of the feeding hopper and the biting crushing plate are staggered. When the biting crushing plate is rotated to the rightmost position, the biting teeth on the biting crushing plate are attached to the left side of the feeding hopper. The biting crushing plate has a slot inside, and the side plate is snapped into the slot. The rotation of the biting crushing plate is realized by the shaft connection, and the slot ensures that the side plate does not affect the rotation of the biting crushing plate.

[0010] In at least some embodiments, the bottom of the elastic plate is provided with two claws that engage with the swing frame. The elastic plate is initially arc-shaped. When the swing frame swings, it compresses the elastic plate and deforms it. The elastic plate automatically recovers its shape due to its elasticity. During the recovery process, it pushes the swing frame to swing, which in turn pushes the U-shaped frame to rotate. This reduces the driving force requirement of the motor to a certain extent and saves more energy.

[0011] In at least some embodiments, a bearing is installed on the top surface of the support frame, an auxiliary shaft is snapped into the bearing, and it is located directly below the U-shaped frame. A rectangular through hole is provided on the support frame. The rectangular through hole allows the rotation of the U-shaped frame to be unaffected, while providing a support base for the installation of the auxiliary shaft. It also provides space restriction for the axial movement of the housing, thereby improving the stability of the device. Two grooves are provided on the top surface of the base.

[0012] In at least some embodiments, the outer sleeve of the U-shaped frame is connected to the round tube at the bottom end of the first connecting rod, which can be removed in one embodiment. A lever plate is fixedly connected to the auxiliary shaft, and a protruding hemispherical block is provided on the top surface of the lever plate. After the motor is started by the external control terminal, the auxiliary shaft is driven to rotate, which also drives the lever plate to rotate. The lever plate will crush the pre-crushed steel slag by impact. After being impacted, the steel slag is bounced onto the crushing plate. The impact force cooperates with the crushing teeth on the crushing plate to crush the steel slag again.

[0013] This invention discloses a method for using an environmentally friendly steel slag crushing equipment, comprising the following steps:

[0014] 1) Pre-crushing: The motor is started by the external circuit control terminal, and the steel slag is put into the feed hopper. The drive shaft of the motor drives the auxiliary shaft to rotate, and the U-shaped frame drives the bottom end of the first connecting rod to rotate. The auxiliary components push the biting crushing plate to rotate, and in conjunction with the feed hopper and biting teeth, the steel slag is pre-crushed.

[0015] 2) Crushing: After the motor is started, the drive shaft drives the auxiliary shaft and the paddle plate to rotate. The pre-crushed steel slag is crushed by repeated impacts from the paddle plate and the crushing plate.

[0016] 3) Screening: During the crushing of steel slag, the mechanical vibration generated by the motor drives the inner spring telescopic sleeve to extend back and forth, pushing the screen plate to rotate back and forth, thus screening the steel slag;

[0017] 4) Discharge: The bottom box pushed onto the base is located directly below the discharge port at the bottom of the outer shell. The sieved steel slag falls into the bottom box through the discharge port, completing the discharge.

[0018] This invention provides a method for using an environmentally friendly steel slag crushing equipment, which has the following beneficial effects:

[0019] When in use, this invention can optimize energy consumption and reduce unit processing energy consumption by adding auxiliary components and elastic plates. After the motor rotates, the auxiliary shaft drives the auxiliary components and elastic plates to push bidirectionally.

[0020] In addition, by adding a feed hopper and a biting crushing plate, the equipment also has a pre-crushing function. Steel slag raw materials with uneven particle size can be pre-crushed before entering the crushing chamber, reducing the requirements for the rated power of the motor, saving resources and reducing energy consumption.

[0021] Furthermore, the auxiliary components and auxiliary shaft are driven by the same motor. Through the cooperation of the elastic plate, the pre-crushing and crushing functions are realized, reducing the number of independent motors used, lowering manufacturing costs, and making it more practical and worthy of promotion. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the base of the present invention is shown;

[0023] Figure 2 A partial cross-sectional structural schematic diagram of the outer casing of the present invention is shown;

[0024] Figure 3 The present invention is shown. Figure 2 A schematic diagram of the inner and outer shell from a downward perspective;

[0025] Figure 4 A schematic diagram of the feed hopper of the present invention is shown;

[0026] Figure 5 A schematic diagram of the structure of the auxiliary component of the present invention is shown;

[0027] Figure 6 A schematic diagram of the structure of the elastic plate of the present invention is shown;

[0028] Figure 7 A schematic diagram of the structure of the housing and auxiliary shaft of the present invention is shown;

[0029] Figure 8 The present invention is shown. Figure 7 Enlarged structural diagram at point A;

[0030] Figure 9 A schematic diagram of the structure of the bottom box of the present invention is shown.

[0031] Figure reference numerals:

[0032] 1. Base; 101. Support frame;

[0033] 2. Outer shell; 201. Crushing plate; 202. Screen plate; 2021. Inner spring telescopic sleeve rod;

[0034] 3. Feed hopper; 301. Side plate; 302. Crushing plate; 303. Crushing teeth;

[0035] 4. Auxiliary components; 41. Fixed axis; 4101. Swing frame; 42. Connecting shaft; 4201. First connecting rod; 4202. Second connecting rod; 43. Push block;

[0036] 5. Motor; 501. Auxiliary shaft; 5011. U-shaped bracket; 502. Pulley;

[0037] 6. Base box; 601. Handle bracket;

[0038] 7. Fixed plate; 701. Elastic plate; 7011. Claw. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example: Please refer to the appendix. Figure 1 To be continued Figure 9 :

[0041] This invention proposes an environmentally friendly steel slag crushing equipment and its usage method, comprising: a base 1, a shell 2, and a motor 5; support frames 101 are welded to both sides of the base 1, and a bottom box 6 is snapped into the inside of the base 1; the motor 5 is installed on the support frames 101; an auxiliary shaft 501 is coaxially connected to the drive shaft of the motor 5; the two ends of the auxiliary shaft 501 penetrate the shell 2, and U-shaped frames 5011 are provided on both sides of the auxiliary shaft 501, with bearings sleeved and snapped onto the support frames 101 at the ends of the auxiliary shaft 501; a feed inlet is provided at the top of the shell 2, and a feed hopper 3 is fixedly welded to the right side of the feed inlet and the top of the shell 2; fixing plates 7 are fixedly welded to the front and rear sides of the shell 2 respectively. Furthermore, a fixed shaft 41 is fixedly connected to the outer wall of the outer shell 2; side plates 301 are fixedly welded to the front and rear sides of the feed hopper 3, and the side plates 301 are rotatably connected to the biting crushing plate 302 via a shaft; the other end of the first connecting rod 4201 is clamped to the connecting shaft 42; a swing frame 4101 and a second connecting rod 4202 are installed on the connecting shaft 42, and the other end of the swing frame 4101 is sleeved on the fixed shaft 41; the other end of the second connecting rod 4202 is rotatably connected to the pushing block 43 via a shaft, and the pushing block 43, the connecting shaft 42 and the fixed shaft 41 constitute the auxiliary component 4; an elastic plate 701 is installed on the fixed plate 7, and the bottom end of the elastic plate 701 is connected to the swing frame 4101.

[0042] In the embodiments disclosed herein, as shown in the appendix Figure 1 and attached Figure 2As shown, a bearing is installed on the top surface of the support frame 101, and an auxiliary shaft 501 is snapped into the bearing. The bearing is located directly below the U-shaped frame 5011. A rectangular through hole is provided on the support frame 101. The rectangular through hole ensures that the rotation of the U-shaped frame 5011 is not affected, while providing a support base for the installation of the auxiliary shaft 501. It also provides space restriction for the axial movement of the outer casing 2, thereby improving the stability of the device. Two grooves are provided on the top surface of the base 1. The grooves provide guidance for the pushing and pulling movement of the bottom box 6, and at the same time ensure that the bottom box 6 is placed in place.

[0043] In the embodiments disclosed herein, as shown in the appendix Figure 2 Appendix Figure 7 and attached Figure 8 As shown, a crushing plate 201 is fixedly installed on the top inner side of the outer casing 2, and a discharge port is opened at the bottom of the outer casing 2. A screen plate 202 is installed on the bottom inner side of the outer casing 2. Inner spring telescopic sleeve rods 2021 are installed on the top of both ends of the screen plate 202. The inner spring telescopic sleeve rods 2021 are arc-shaped in shape. The bottom sleeve is fastened to the top of the screen plate 202 by threads. An internal spring is installed inside the bottom sleeve. The top rod is fixedly connected to the bottom of the crushing plate 201, and a notch is opened on the outer side of the bottom of the crushing plate 201. When the motor 5 is started, the steel slag fed into the outer casing 2 is subjected to… During the crushing process, vibrations occur. The built-in spring at the bottom of the inner spring telescopic sleeve 2021 behind the crushing plate 201 will automatically reset due to its own elasticity. However, since the positions of the crushing plate 201 and the rod are fixed, it will push the screen plate 202 to swing. The notch on the outer side of the bottom of the crushing plate 201 can meet the swing space requirements of the screen plate 202. The arc-shaped inner spring telescopic sleeve 2021 has the same arc as the screen plate 202 to ensure that the screen plate 202 can swing and screen the crushed steel slag. Different screening accuracies can be adjusted by replacing the screen plate 202.

[0044] In the embodiments disclosed herein, as shown in the appendix Figure 5As shown, the swing frame 4101 has collars at both ends. The swing frame 4101 is installed inside the connecting cover at one end of the second connecting rod 4202. The pushing block 43 is fixedly welded to the left end face of the biting crushing plate 302. After the motor 5 is started through the external control terminal, it coaxially drives the auxiliary shaft 501 to rotate. After the U-shaped frame 5011 rotates, it drives the first connecting rod 4201 to move. The bottom tube of the first connecting rod 4201 makes a circular motion, but the top of the first connecting rod 4201 swings. The first connecting rod 4201 adjusts the connection. As shaft 42 moves, it also causes the swing frame 4101 and the second connecting rod 4202 to swing. The fixed shaft 41 serves as the center of the swing circle constrained by the swing frame 4101. The second connecting rod 4202 drives the push block 43 to swing, thereby causing the biting crushing plate 302 to swing. With the feed hopper 3 as a reference, the biting crushing plate 302 reciprocates towards the feed hopper 3, and pre-crushes the steel slag through the biting teeth 303. This reduces the demand for the high power of the motor 5, improves the crushing effect of the steel slag, and achieves the purpose of saving energy for the motor 5.

[0045] In the embodiments disclosed herein, as shown in the appendix Figure 9 As shown, a circular notch is provided on the left end face of the bottom box 6. A movable wheel is installed on the bottom of the bottom box 6. A handle 601 is rotatably connected to the left end face of the bottom box 6 via a shaft. The handle 601 is engaged in the circular notch, and grooves are provided on the upper and lower sides of the crossbar of the handle 601. The grooves facilitate the lifting of the handle 601. After lifting the handle 601, the bottom box 6 can be moved and pushed into the base 1. The bottom box 6 can be used to hold the crushed steel slag and is also easy to replace.

[0046] In the embodiments disclosed herein, as shown in the appendix Figure 7 As shown, the outer sleeve of the U-shaped frame 5011 is connected to the round tube at the bottom of the first connecting rod 4201. A lever plate 502 is fixedly connected to the auxiliary shaft 501. The top surface of the lever plate 502 is provided with a protruding hemispherical block. After the motor 5 is started by the external control terminal, the auxiliary shaft 501 is driven to rotate, which also drives the lever plate 502 to rotate. The lever plate 502 will crush the pre-crushed steel slag. After being struck, the steel slag is bounced onto the crushing plate 201. The impact force and the crushing teeth on the crushing plate 201 are used to crush the steel slag again. This process is repeated. After being crushed, the steel slag falls onto the screen plate 202. The screen plate 202 is shaken by vibration to screen the crushed steel slag, ensuring that the steel slag falling out of the outer shell 2 reaches the ideal crushing particle size. At the same time, the hemispherical block on the lever plate 502 and the crushing plate 201 can increase the crushing intensity and reduce the energy consumption of the motor 5, thus saving energy.

[0047] In the embodiments disclosed herein, as shown in the appendix Figure 6As shown, the bottom of the elastic plate 701 is provided with two claws 7011, which are engaged with the swing frame 4101. The elastic plate 701 is initially arc-shaped. When the swing frame 4101 swings, it compresses the elastic plate 701 and deforms it. It automatically recovers due to the elasticity of the elastic plate 701. During the recovery process, it pushes the swing frame 4101 to swing, which can push the U-shaped frame 5011 to rotate in the opposite direction. This reduces the driving force requirement of the motor 5 to a certain extent and saves more energy.

[0048] In the embodiments disclosed herein, as shown in the appendix Figure 2 and attached Figure 4 As shown, the feeding hopper 3 and the biting crushing plate 302 are respectively welded with biting teeth 303 on their opposite sides, and the positions of the biting teeth 303 of the feeding hopper 3 and the biting crushing plate 302 are staggered. When the biting crushing plate 302 rotates to the rightmost position, the biting teeth 303 on the biting crushing plate 302 are attached to the left side of the feeding hopper 3. The biting crushing plate 302 has a slot inside, and the side plate 301 is snapped into the slot. The rotation of the biting crushing plate 302 is realized by the shaft connection. The slot ensures that the side plate 301 does not affect the rotation of the biting crushing plate 302. The biting teeth 303 can perform biting crushing in advance during the steel slag feeding process, reducing the driving force requirement of the motor 5, saving energy and reducing energy consumption.

[0049] This invention discloses a method for using an environmentally friendly steel slag crushing equipment, comprising the following steps:

[0050] 1) Pre-crushing: The motor 5 is started by the external circuit control terminal, and the steel slag is put into the feed hopper 3. The drive shaft of the motor 5 drives the auxiliary shaft 501 to rotate coaxially. The U-shaped frame 5011 drives the bottom end of the first connecting rod 4201 to rotate. The auxiliary component 4 pushes the biting crushing plate 302 to rotate, which works with the feed hopper 3 and the biting teeth 303 to pre-crush the steel slag.

[0051] 2) Crushing: After the motor 5 is started, the drive shaft drives the auxiliary shaft 501 and the paddle plate 502 to rotate. The pre-crushed steel slag is crushed by repeated impacts from the paddle plate 502 and the crushing plate 201.

[0052] 3) Screening: During the crushing of steel slag, the mechanical vibration generated by the motor 5 drives the inner spring telescopic sleeve 2021 to extend back and forth, pushing the screen plate 202 to rotate back and forth, thus screening the steel slag.

[0053] 4) Discharge: The bottom box 6 pushed onto the base 1 is located directly below the discharge port at the bottom of the outer shell 2. The sieved steel slag falls into the bottom box 6 through the discharge port, completing the discharge.

[0054] Working principle of this embodiment: Working principle of the present invention:

[0055] First, the motor 5 is started via the external circuit control terminal, and steel slag is fed into the feed hopper 3. The drive shaft of the motor 5 coaxially drives the auxiliary shaft 501 to rotate. The U-shaped frame 5011 drives the bottom end of the first connecting rod 4201 to rotate, and the top end of the first connecting rod 4201 swings. The first connecting rod 4201 drives the connecting shaft 42 to move, which in turn causes the swing frame 4101 and the second connecting rod 4202 to swing. The fixed shaft 41 serves as the center of the swing circle constrained by the swing frame 4101. The second connecting rod 4202 drives the push block 43 to swing, thereby causing the biting crushing plate 302 to swing. The steel slag is pre-crushed by the biting teeth 303. The pre-crushed steel slag is then crushed by repeated impacts from the prying plate 502 and the crushing plate 201.

[0056] The mechanical vibration generated by the motor 5 driving the dial plate 502 and the crushing plate 201 causes the inner spring telescopic sleeve 2021 to extend back and forth, pushing the screen plate 202 to rotate back and forth while screening the steel slag; finally, the material is discharged through the discharge port at the bottom of the outer shell 2.

Claims

1. An environmentally friendly steel slag crushing equipment, characterized in that, Include: The base, shell and motor; both sides of the base are welded with support frame, the inside of the base is clamped with bottom box; The motor is installed on the support frame; The drive shaft of the motor is coaxially connected with auxiliary shaft; The both ends of the auxiliary shaft penetrate through the shell, the auxiliary shaft is fixedly connected with the push plate, the top surface of the push plate is provided with protruding hemispherical block, the both sides of the auxiliary shaft are provided with U-shaped frame, and the end of the auxiliary shaft is sleeved with bearing clamped on the support frame, the top surface of the support frame is installed with bearing, the inside of the bearing is clamped with auxiliary shaft, and the rectangular through hole is arranged below the U-shaped frame on the support frame, and the top surface of the base is provided with two grooves; The top of the shell is provided with a feeding port, the right side of the feeding port, the top of the shell is fixedly welded with a feeding hopper, the front and back sides of the shell are respectively fixedly welded with fixed plates, and the outer wall of the shell is fixedly connected with a fixed shaft, the inside top of the shell is fixedly installed with a crushing plate, the bottom of the shell is provided with a discharge port, the inside bottom of the shell is installed with a screen plate, the both ends of the screen plate are installed with inner spring telescopic sleeve rods, the inner spring telescopic sleeve rods are arc-shaped structure as a whole, the bottom sleeve is fastened to the top of the screen plate through threads, the inside of the bottom sleeve is provided with an inner spring, the top rod is fixedly connected to the bottom of the crushing plate, and the bottom of the crushing plate is provided with a notch outside; The front and back sides of the feeding hopper are fixedly welded with side plates, the side plates are rotatably connected with occlusion crushing plates through shafts, the opposite surfaces of the feeding hopper and the occlusion crushing plates are respectively welded with occlusion teeth, and the positions of the occlusion teeth of the feeding hopper and the occlusion crushing plates are staggered, when the occlusion crushing plate is turned to the most right position, the occlusion teeth on the occlusion crushing plate are attached to the left surface of the feeding hopper, the inside of the occlusion crushing plate is provided with a notch, and the side plates are clamped in the notch; The U-shaped frame is sleeved with the sleeve of the end of the first connecting rod; The other end of the first connecting rod is clamped with a connecting shaft; The connecting shaft is installed with a swing frame and a second connecting rod, the other end of the swing frame is sleeved on the fixed shaft, the both ends of the swing frame are provided with sleeves, the swing frame is installed in the inside of the one end connecting cover of the second connecting rod, and the pushing block is fixedly welded on the left end surface of the occlusion crushing plate; The other end of the second connecting rod is rotatably connected with a pushing block through a shaft, and the pushing block, the connecting shaft and the fixed shaft constitute an auxiliary component; The fixed plate is installed with an elastic plate, and the bottom end of the elastic plate is connected to the swing frame.

2. The environment-friendly steel slag crushing device according to claim 1, characterized in that, The left end surface of the bottom box is provided with a circular notch, the bottom of the bottom box is installed with a moving wheel, the moving wheel is located in the groove on the top surface of the base, the left end surface of the bottom box is rotatably connected with a handle frame through a shaft, the handle frame is clamped in the circular notch, and the horizontal rod of the handle frame is provided with grooves on the upper and lower sides.

3. The environment-friendly steel slag crushing device according to claim 1, characterized in that, The bottom of the elastic plate is provided with two clamping claws, and the clamping claws are clamped on the swing frame.

4. The use of an environmentally friendly steel slag crushing device according to any one of claims 1-3, characterized in that, The steps include: 1) pre-crushing: the motor is started by external circuit control end, the steel slag is put into the feeding hopper, the drive shaft of the motor drives the auxiliary shaft to rotate, the U-shaped frame drives the bottom end of the first connecting rod to rotate, the occlusion crushing plate is pushed to rotate through the auxiliary component, and the steel slag is pre-crushed by cooperating with the feeding hopper and the occlusion teeth; 2) crushing: the drive shaft drives the auxiliary shaft and the push plate to rotate after the motor is started, the pre-crushed steel slag is crushed by repeated impact of the push plate and the crushing plate; 3), screening: in the process of crushing steel slag, the mechanical vibration generated by the motor drives the inner spring telescopic sleeve rod to reciprocating elongation, reciprocating rotation of the screen plate, and screening of the steel slag; 4), discharge: the bottom box pushed to the bottom of the base is located directly below the discharge port at the bottom of the shell, and the screened steel slag falls into the bottom box through the discharge port, completing the discharge.

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