Environment-friendly steel slag crushing equipment and use method thereof

Abstract

The invention relates to the technical field of solid waste recycling and smashing, and provides environment-friendly steel slag smashing equipment and a using method thereof. Supporting frames are welded to the two sides of the base. A motor is mounted on the support frame; a driving shaft of the motor is coaxially connected with an auxiliary shaft; u-shaped frames are arranged on the two sides of the auxiliary shaft. The U-shaped frame is sleeved with a sleeve at the tail end of the first connecting rod. The other end of the first connecting rod is connected with a connecting shaft in a clamped mode. By additionally arranging the auxiliary component and the elastic plate, after the motor rotates, the auxiliary shaft drives the auxiliary component and the elastic plate to conduct bidirectional pushing, energy consumption optimization can be achieved, the unit treatment energy consumption can be reduced, the energy consumption can be reduced, and the energy consumption can be reduced. The defects that energy consumption optimization of existing steel slag smashing equipment is difficult to achieve by additionally installing auxiliary components, and consequently unit treatment energy consumption stays at a high level for a long time are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste recycling and crushing, and particularly relates to an environment-friendly steel slag crushing device and a using method thereof. Background Art

[0002] Steel slag is the main solid waste generated in the steelmaking process. According to statistics, about 120-150 kilograms of steel slag are generated per ton of crude steel produced. If not properly disposed of, it will cause 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 sustainable development of the steel industry.

[0003] Currently, most steel slag crushing devices are driven by a single motor, and there are limitations in mechanical design. It is difficult for the device to optimize energy consumption by adding auxiliary components, resulting in a long-term high unit processing energy consumption. In addition, due to the lack of a pre-crushing function module, steel slag raw materials with uneven particle sizes directly enter the main crushing chamber, which not only increases the requirement for the rated power of the motor, but also easily causes abnormal wear and vibration of the device. Moreover, although some devices are equipped with a multi-stage crushing system, each functional unit needs to be driven by an independent motor, resulting in a complex overall structure of the device, an increase in manufacturing costs, and the inability to achieve efficient collaborative utilization of energy, causing a great waste of resources. Summary of the Invention

[0004] Embodiments of the present disclosure relate to an environment-friendly steel slag crushing device and a using method thereof, aiming to reduce the motor energy consumption and save resources while ensuring the crushing efficiency of the steel slag crushing device; at the same time, integrate the pre-crushing function and reduce energy consumption through the coordinated drive of a single motor.

[0005] In the first aspect of the present disclosure, an environment-friendly steel slag crushing device and a using method thereof are provided, specifically including: a base, a housing, and a motor; support frames are welded on both sides of the base, and a bottom box is clamped inside the base; the motor is installed on the support frame; the drive shaft of the motor is coaxially connected with an auxiliary shaft; both ends of the auxiliary shaft penetrate through the housing, U-shaped frames are arranged on both sides of the auxiliary shaft, and the ends of the auxiliary shaft are sleeved with bearings and clamped on the support frame; a feed inlet is opened at the top of the housing, a feed hopper is fixedly welded on the right side of the feed inlet and at the top of the housing, fixed plates are respectively fixedly welded on the front and rear sides of the housing, and a fixed shaft is fixedly connected to the outer wall of the housing; side plates are fixedly welded on the front and rear sides of the feed hopper, and a biting crushing plate is rotatably connected to the side plates through a shaft; a sleeve at the end of a first connecting rod is sleeved on the U-shaped frame; the other end of the first connecting rod is clamped with a connecting shaft; 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; the other end of the second connecting rod is rotatably connected to a pushing block through a shaft, and the pushing block, the connecting shaft, and the fixed shaft form 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, collars are provided at both ends of the swing frame. 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 occluding crushing plate. After the motor is started through an 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 occluding crushing plate to pre-crush the steel slag, reducing the demand for ultra-high power of the motor, improving the steel slag crushing effect, reducing energy consumption, and achieving the purpose of energy conservation of the motor.

[0007] In at least some embodiments, a crushing plate is fixedly installed at the inner top of the outer shell. A discharge port is provided at the bottom of the outer shell. A screen plate is installed at the inner bottom of the outer shell. Inner spring telescopic rods are installed at the top of both ends of the screen plate. The inner spring telescopic rods are of an overall arc-shaped structure. The bottom sleeve is threadedly fastened to the top of the screen plate. 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 provided on the outer side of the bottom of the crushing plate. During the process of crushing the steel slag put into the inner part of the outer shell after starting the motor, vibrations will occur. When the crushing plate presses the rod, the internal spring at the bottom end of the inner spring telescopic rod will automatically reset under its own elastic action. However, due to the fixed positions of the crushing plate and the rod, the screen plate will be pushed to swing. The notch on the outer side of the bottom of the crushing plate can meet the swinging space requirements of the screen plate.

[0008] In at least some embodiments, a circular notch is provided on the left end face of the bottom box. Moving wheels are installed at the bottom of the bottom box. The moving wheels are located in the grooves on the top surface of the base. The left end face of the bottom box is rotatably connected to a handle frame through a shaft. The handle frame is clamped in the circular notch. And grooves are provided on the upper and lower sides of the cross bar of the handle frame, which facilitates lifting the handle frame by using the grooves, making it more in line with the actual use requirements.

[0009] In at least some embodiments, occluding teeth are respectively welded on the opposite faces of the feed hopper and the occluding crushing plate, and the positions of the occluding teeth of the feed hopper and the occluding crushing plate are staggered. When the occluding crushing plate rotates to the rightmost position, the occluding teeth on the occluding crushing plate are attached to the left side face of the feed hopper. A notch is provided inside the occluding crushing plate. The side plate is clamped inside the notch. The occluding crushing plate is rotatable by using a shaft connection, and the notch ensures that the side plate does not affect the rotation of the occluding crushing plate.

[0010] In at least some embodiments, two clamping claws are provided at the bottom of the elastic plate. The clamping claws are clamped on the swing frame. The elastic plate is in an arc shape in the initial state. When the swing frame swings, it compresses the elastic plate to deform. The elastic plate automatically restores under its own elastic action. During the restoration process, it pushes the swing frame to swing, thereby reversely driving the U-shaped frame to rotate to a certain extent, reducing the driving force requirement for the motor to a certain extent and saving more energy.

[0011] In at least some embodiments, a bearing is installed on the top surface of the support frame. An auxiliary shaft is clamped inside the bearing, and a rectangular through-hole is provided on the support frame directly below the U-shaped frame. By providing the rectangular through-hole, the rotation of the U-shaped frame is not affected, and at the same time, a supporting foundation is provided for the installation of the auxiliary shaft, and space limitation is provided for the axial movement of the housing, improving the stability of the device. Two grooves are provided on the top surface of the base.

[0012] In at least some embodiments, a round tube at the bottom end of the first connecting rod is sleeved outside the U-shaped frame. On the auxiliary shaft, a dial is fixedly connected, and a protruding hemispherical block is provided on the top surface of the dial. After starting the motor through an external control end, the auxiliary shaft is driven to rotate, and the dial is also driven to rotate. The dial will strike and crush the pre-crushed steel slag, and the steel slag will be bounced to the crushing plate after being struck, and cooperate with the crushing teeth on the crushing plate by using the impact force to strike and crush the steel slag again.

[0013] The present invention discloses a usage method of an environment-friendly steel slag crushing device, including the following steps:

[0014] 1). Pre-crushing: Start the motor through an external circuit control end, put the steel slag into the feed hopper. The driving shaft of the motor drives the auxiliary shaft to rotate coaxially. The U-shaped frame drives the bottom end of the first connecting rod to rotate, and the auxiliary component is pushed to drive the occluding crushing plate to rotate, and cooperate with the feed hopper and the occluding teeth to pre-crush the steel slag;

[0015] 2). Crushing: After starting the motor, the driving shaft drives the auxiliary shaft and the dial to rotate, and the pre-crushed steel slag is crushed by the repeated strikes of the dial and the crushing plate;

[0016] 3). Sieving: During the process of crushing the steel slag, the mechanical vibration generated by the motor drives the inner spring telescopic rod to reciprocally extend, pushing the sieve plate to reciprocally rotate to sieve the steel slag;

[0017] 4). Discharging: The bottom box pushed to the base is directly below the discharge port at the bottom of the housing, and the sieved steel slag falls into the bottom box through the discharge port to complete the discharging.

[0018] The present invention provides a usage method of an environment-friendly steel slag crushing device, having the following beneficial effects:

[0019] When the present invention is in use, by adding an auxiliary component and an elastic plate, after the motor rotates, the auxiliary shaft drives the auxiliary component and the elastic plate to push in two directions, which can optimize the energy consumption and reduce the unit processing energy consumption.

[0020] In addition, by adding a feed hopper and an occluding crushing plate, the device has a pre-crushing function. The steel slag raw materials with uneven particle sizes can enter the crushing cavity after pre-crushing, reducing the requirement for the rated power of the motor, saving resources and reducing energy consumption.

[0021] In addition, the auxiliary component and the 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 and the manufacturing cost, and having more practical and promotional significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shows a schematic structural diagram of the base of the present invention;

[0023] Figure 2 Shows a partial sectional structural diagram of the housing of the present invention;

[0024] Figure 3 Shows the present invention Figure 2 The schematic structural diagram of the housing from the bottom view angle in;

[0025] Figure 4 Shows a schematic structural diagram of the feed hopper of the present invention;

[0026] Figure 5 Shows a schematic structural diagram of the auxiliary component of the present invention;

[0027] Figure 6 Shows a schematic structural diagram of the elastic plate of the present invention;

[0028] Figure 7 Shows a schematic structural diagram of the housing and the auxiliary shaft of the present invention;

[0029] Figure 8 Shows the present invention Figure 7 The enlarged structural diagram at A in;

[0030] Figure 9 Shows a schematic structural diagram of the bottom box of the present invention.

[0031] Reference numerals in the drawings:

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

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

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

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

[0036] 5. Motor; 501. Auxiliary shaft; 5011. U-shaped frame; 502. Paddle;

[0037] 6. Bottom box; 601. Handle frame;

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

[0039] [[ID=**8**]]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 of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0040] Embodiment: Please refer to Atta Figure 1 to Atta Figure 9 :

[0041] The present invention provides an environmentally friendly steel slag crushing device and its usage method, including: a base 1, a housing 2, and a motor 5; support frames 101 are welded on both sides of the base 1, and a bottom box 6 is snap-fitted inside the base 1; a motor 5 is installed on the support frames 101; a driving shaft of the motor 5 is coaxially connected to an auxiliary shaft 501; both ends of the auxiliary shaft 501 penetrate through the housing 2, U-shaped frames 5011 are arranged on both sides of the auxiliary shaft 501, and the ends of the auxiliary shaft 501 are sleeved with bearings and snap-fitted on the support frames 101; a feed inlet is opened at the top of the housing 2, a feed hopper 3 is fixedly welded to the top of the housing 2 on the right side of the feed inlet, fixed plates 7 are respectively fixedly welded to the front and rear sides of the housing 2, and a fixed shaft 41 is fixedly connected to the outer wall of the housing 2; side plates 301 are fixedly welded to the front and rear sides of the feed hopper 3, and a biting crushing plate 302 is rotatably connected to the side plates 301 through a shaft; the other end of a first connecting rod 4201 is snap-fitted with a 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 a pushing block 43 through a shaft, and the pushing block 43, the connecting shaft 42, and the fixed shaft 41 form an 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 of the present disclosure, as shown in Atta Figure 1 and Atta Figure 2 It should be noted that there seems to be some incomplete or incorrect expressions in the original text (such as "Atta" in "Please refer to Atta" and "In the embodiments of the present disclosure, as shown in Atta"), which may affect the overall understanding. This translation is based on the existing text as accurately as possible.As shown, a bearing is installed on the top surface of the support frame 101. The auxiliary shaft 501 is clamped inside the bearing. And a rectangular through hole is provided on the support frame 101 directly below the U-shaped frame 5011. By providing the rectangular through hole, the rotation of the U-shaped frame 5011 is not affected. At the same time, it provides a support basis for the installation of the auxiliary shaft 501, and can also provide space limitation for the axial movement of the outer shell 2, improving the stability of the device. Two grooves are provided on the top surface of the base 1. The grooves provide guidance for the push-pull movement of the bottom box 6, and can ensure that the bottom box 6 is placed in place.

[0043] In the embodiment of the present disclosure, as shown in the attached Figure 2 , attached Figure 7 and attached Figure 8 As shown, a crushing plate 201 is fixedly installed on the inner top of the outer shell 2. An outlet is provided at the bottom of the outer shell 2. A screen plate 202 is installed on the inner bottom of the outer shell 2. Inner spring telescopic rods 2021 are installed at the top ends of both ends of the screen plate 202. The inner spring telescopic rods 2021 are of an overall arc structure. The bottom sleeve is threadedly fastened to the top of the screen plate 20, and an internal spring is provided inside the bottom sleeve. The rod at the top is fixedly connected to the bottom of the crushing plate 201. And a notch is provided on the outer side of the bottom of the crushing plate 201. When the motor 5 is started and the steel slag put into the inner part of the outer shell 2 is being crushed, vibrations will occur. When the crushing plate 201 presses the rod, the internal spring at the bottom end of the inner spring telescopic rod 2021 will automatically reset due to its own elastic force. However, since the positions of the crushing plate 201 and the rod are fixed, the screen plate 202 will be pushed to swing. The notch on the outer side of the bottom of the crushing plate 201 can meet the swing space requirement of the screen plate 202. The arc-shaped inner spring telescopic rod 2021 has the same radian as the screen plate 202 to ensure that the screen plate 202 can swing and screen the crushed steel slag. By replacing the screen plate 202, the adjustment of different screening precisions can be realized.

[0044] In the embodiment of the present disclosure, as shown in the attached Figure 5As shown in the figure, sleeves are provided at both ends of the swing frame 4101. 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 occluding crushing plate 302. After the motor 5 is started through an external control terminal, the auxiliary shaft 501 is driven to rotate coaxially. After the U-shaped frame 5011 rotates, the first connecting rod 4201 is driven to move. The bottom circular tube of the first connecting rod 4201 makes a circular motion, but the top end of the first connecting rod 4201 swings. The first connecting rod 4201 drives the connecting shaft 42 to move, and thus also drives the swing frame 4101 and the second connecting rod 4202 to swing. The fixed shaft 41 restricts the swing center of the swing frame 4101. The second connecting rod 4202 drives the pushing block 43 to swing, thereby driving the occluding crushing plate 302 to swing. Taking the feed hopper 3 as a reference, the occluding crushing plate 302 reciprocally approaches the feed hopper 3, and the steel slag put in is pre-crushed by the occluding teeth 303, reducing the demand for the ultra-high power of the motor 5, improving the steel slag crushing effect, and achieving the purpose of energy conservation of the motor 5 at the same time.

[0045] In the embodiment of the present disclosure, as shown in the attached Figure 9 figure, a circular notch is opened on the left end face of the bottom box 6. Moving wheels are installed at the bottom of the bottom box 6. The left end face of the bottom box 6 is rotatably connected to a handle frame 601 through a shaft. The handle frame 601 is clamped in the circular notch, and grooves are opened on the upper and lower sides of the cross bar of the handle frame 601. The grooves are used to conveniently lift the handle frame 601. After the handle frame 601 is lifted, the bottom box 6 can be pushed to move. After being pushed into the base 1, the bottom box 6 can be used to collect the crushed steel slag and is also convenient for replacement.

[0046] In the embodiment of the present disclosure, as shown in the attached Figure 7 figure, the circular tube at the bottom end of the first connecting rod 4201 is sleeved outside the U-shaped frame 5011. A dial plate 502 is fixedly connected to the auxiliary shaft 501. A protruding hemispherical block is provided on the top surface of the dial plate 502. After the motor 5 is started through an external control terminal, the auxiliary shaft 501 is driven to rotate, and the dial plate 502 is also driven to rotate. The dial plate 502 will strike and crush the pre-crushed steel slag by occlusion. After being struck, the steel slag is bounced onto the crushing plate 201, and the steel slag is struck and crushed again by using the impact force in cooperation with the crushing teeth on the crushing plate 201. This process is repeated. After the steel slag is crushed, it falls onto the screen plate 202. The vibration is used to drive the screen plate 202 to continuously shake, and the crushed steel slag is sieved to ensure that the steel slag falling out of the housing 2 reaches the ideal crushing particle size. At the same time, the hemispherical block on the dial plate 502 and the crushing plate 201 can increase the crushing strength and reduce the energy consumption of the motor 5, saving energy.

[0047] In the embodiment of the present disclosure, as shown in the attached Figure 6As shown, two clamping claws 7011 are provided at the bottom of the elastic plate 701. The clamping claws 7011 are clamped on the swing frame 4101. The elastic plate 701 is in an arc shape in its initial state. When the swing frame 4101 swings, it presses the elastic plate 701 to deform. Due to the elastic action of the elastic plate 701, it automatically restores. During the restoration process, it pushes the swing frame 4101 to swing, thereby reversing the rotation of the U-shaped frame 5011, reducing the driving force requirement for the motor 5 to a certain extent and saving more energy.

[0048] In the embodiment of the present disclosure, as shown in the attached Figure 2 and the attached Figure 4 As shown, engaging teeth 303 are respectively welded on the opposite surfaces of the feed hopper 3 and the engaging and crushing plate 302, and the positions of the engaging teeth 303 of the feed hopper 3 and the engaging and crushing plate 302 are staggered. When the engaging and crushing plate 302 rotates to the rightmost position, the engaging teeth 303 on the engaging and crushing plate 302 are attached to the left side surface of the feed hopper 3. A notch is provided inside the engaging and crushing plate 302, and the side plate 301 is clamped inside the notch. The rotation of the engaging and crushing plate 302 is realized by shaft connection, and the notch ensures that the side plate 301 does not affect the rotation of the engaging and crushing plate 302. The engaging teeth 303 can perform pre-engaging crushing during the feeding of the steel slag, reducing the driving force requirement for the motor 5, saving energy, and reducing energy consumption.

[0049] The present invention discloses a method for using an environment-friendly steel slag crushing device, including the following steps:

[0050] 1) Pre-crushing: Start the motor 5 through the external circuit control terminal, put the steel slag into the feed hopper 3. The driving 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. Through the auxiliary member 4, the engaging and crushing plate 302 is driven to rotate, and in cooperation with the feed hopper 3 and the engaging teeth 303, pre-crushing of the steel slag is performed;

[0051] 2) Crushing: After starting the motor 5, the driving shaft drives the auxiliary shaft 501 and the baffle 502 to rotate. The pre-crushed steel slag is crushed by the repeated impacts of the baffle 502 and the crushing plate 201;

[0052] 3) Sieving: During the process of crushing the steel slag, the mechanical vibration generated by the motor 5 drives the inner spring telescopic rod 2021 to reciprocally extend, pushing the sieve plate 202 to rotate reciprocally, and sieving the steel slag;

[0053] 4) Discharging: 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 to complete discharging.

[0054] The working principle of this embodiment: The working principle of the present invention:

[0055] First, start the motor 5 through the external circuit control terminal, put the steel slag 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, and the top end of the first connecting rod 4201 swings. The first connecting rod 4201 drives the connecting shaft 42 to move, and also drives the swing frame 4101 and the second connecting rod 4202 to swing. The fixed shaft 41 restricts the swing center of the swing frame 4101. The second connecting rod 4202 drives the push block 43 to swing, thereby driving the occlusal crushing plate 302 to swing. The steel slag put in is pre-crushed through the occlusal teeth 303. The pre-crushed steel slag is crushed by the repeated strikes of the baffle 502 and the crushing plate 201.

[0056] The mechanical vibration generated by the motor 5 driving the baffle 502 and the crushing plate 201 drives the inner spring telescopic rod 2021 to reciprocate and extend, and while pushing the screen plate 202 to rotate reciprocally, it screens the steel slag; finally, the discharging is completed through the discharging port at the bottom of the housing 2.

Claims

1. An environmentally friendly steel slag crushing device and its usage method, characterized in that, An environment-friendly steel slag crushing device includes: a base (1), a housing (2), and a motor (5); support frames (101) are welded to both sides of the base (1), and a bottom box (6) is snap-fitted inside the base (1); the motor (5) is installed on the support frames (101); a driving shaft of the motor (5) is coaxially connected to an auxiliary shaft (501); both ends of the auxiliary shaft (501) penetrate through the housing (2), U-shaped frames (5011) are arranged on both sides of the auxiliary shaft (501), and the ends of the auxiliary shaft (501) are sleeved with bearings and snap-fitted on the support frames (101); a feeding port is opened at the top of the housing (2), a feeding hopper (3) is fixedly welded to the top of the housing (2) on the right side of the feeding port, fixing plates (7) are respectively fixedly welded to the front and rear sides of the housing (2), and a fixed shaft (41) is fixedly connected to the outer wall of the housing (2); side plates (301) are fixedly welded to the front and rear sides of the feeding hopper (3), and a biting and crushing plate (302) is rotatably connected to the side plates (301) through a shaft; sleeves at the ends of a first connecting rod (4201) are sleeved on the U-shaped frames (5011); the other end of the first connecting rod (4201) is snap-fitted with a connecting shaft (42); a swinging frame (4101) and a second connecting rod (4202) are installed on the connecting shaft (42), and the other end of the swinging frame (4101) is sleeved on the fixed shaft (41); the other end of the second connecting rod (4202) is rotatably connected to a pushing block (43) through a shaft, and the pushing block (43), the connecting shaft (42), and the fixed shaft (41) form an auxiliary component (4); an elastic plate (701) is installed on the fixing plate (7), and the bottom end of the elastic plate (701) is connected to the swinging frame (4101).

2. An environmentally friendly steel slag crushing device according to claim 1, characterized in that, Bearings are installed on the top surface of the support frames (101), the auxiliary shaft (501) is snap-fitted inside the bearings, a rectangular through-hole is opened on the support frames (101) directly below the U-shaped frames (5011), and two grooves are opened on the top surface of the base (1).

3. An environmentally friendly steel slag crushing device according to claim 2, characterized in that, A crushing plate (201) is fixedly installed on the inner top of the housing (2), a discharge port is opened at the bottom of the housing (2), a screen plate (202) is installed on the inner bottom of the housing (2), inner spring telescopic rods (2021) are installed at the top ends of both ends of the screen plate (202), the inner spring telescopic rods (2021) are integrally arc-shaped structures, the bottom sleeves are fixedly connected to the top of the screen plate (202) through threads, built-in springs are arranged inside the bottom sleeves, the rods at the top are fixedly connected to the bottom of the crushing plate (201), and notches are opened on the outer side of the bottom of the crushing plate (201).

4. An environmentally friendly steel slag crushing device according to claim 3, characterized in that, Biting teeth (303) are respectively welded on the opposite surfaces of the feeding hopper (3) and the biting and crushing plate (302), and the positions of the biting teeth (303) of the feeding hopper (3) and the biting and crushing plate (302) are staggered. When the biting and crushing plate (302) rotates to the rightmost position, the biting teeth (303) on the biting and crushing plate (302) are attached to the left side surface of the feeding hopper (3), a notch is opened inside the biting and crushing plate (302), and the side plate (301) is snap-fitted inside the notch.

5. An environmentally friendly steel slag crushing device according to claim 4, characterized in that, Both ends of the swing frame (4101) are provided with collars. The swing frame (4101) is installed inside the connecting cover at one end of the second connecting rod (4202). The push block (43) is fixedly welded to the left end face of the bite crushing plate (302).

6. An environmentally friendly steel slag crushing device according to claim 5, characterized in that, A dial plate (502) is fixedly connected to the auxiliary shaft (501). A protruding hemispherical block is arranged on the top surface of the dial plate (502).

7. An environmentally friendly steel slag crushing device according to claim 6, characterized in that, A circular notch is formed in the left end face of the bottom box (6). Moving wheels are installed at the bottom of the bottom box (6). The moving wheels are located in the grooves on the top surface of the base (1). The left end face of the bottom box (6) is rotatably connected to a handle frame (601) through a shaft. The handle frame (601) is clamped in the circular notch, and grooves are formed on the upper and lower sides of the cross bar of the handle frame (601).

8. An environmentally friendly steel slag crushing device according to claim 7, characterized in that, Two claws (7011) are arranged at the bottom of the elastic plate (701). The claws (7011) are clamped on the swing frame (4101).

9. The usage method of an environmentally friendly steel slag crushing device according to claim 8, characterized in that, Including the following steps: 1) Pre-crushing: Start the motor (5) through the external circuit control terminal, put the steel slag 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. Through the auxiliary component (4), the bite crushing plate (302) is pushed to rotate. Cooperating with the feed hopper (3) and the bite teeth (303), the steel slag is pre-crushed; 2) Crushing: After starting the motor (5), the drive shaft drives the auxiliary shaft (501) and the dial plate (502) to rotate. The pre-crushed steel slag is crushed by the repeated impacts of the dial plate (502) and the crushing plate (201); 3) Sieving: During the process of crushing the steel slag, the mechanical vibration generated by the motor (5) drives the inner spring telescopic rod (2021) to reciprocate and extend, pushing the sieve plate (202) to rotate reciprocally to sieve the steel slag; 4) Discharging: 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 to complete the discharging.

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