Pretreatment device for waste steel recovery

Abstract

The pretreatment device comprises a crusher and a crushing wheel, a housing is installed on the upper wall of the crusher, an extrusion mechanism is installed in the housing, the extrusion mechanism comprises a rotating wheel, a connecting rod, a push rod, a sliding sleeve and an extrusion plate, the rotating wheel is rotatably installed on the inner wall of the housing, and one end of the connecting rod is rotatably installed on the side wall of the rotating wheel; and the other end of the connecting rod is rotationally installed on the side wall of the push rod, a sliding sleeve is installed in the housing, the push rod is installed in the sliding sleeve in a sliding mode, and an extrusion plate is installed at the end, away from the connecting rod, of the push rod. And in addition, the convex blocks on the crushing wheel in the device can be detached, when the convex blocks are provided with notches and need to be replaced, the damaged convex blocks can be independently replaced, and the later maintenance cost is saved.

Description

Technical Field

[0001] This patent relates to the field of scrap steel recycling, specifically a pretreatment device for recycling scrap steel. Background Art

[0002] As the output and usage of steel increase, the amount of scrap steel products also increases. Steel products need to be recycled and recast. In order to facilitate casting, the steel needs to be pre-processed through a crusher to break it into small pieces.

[0003] However, when the existing scrap steel pretreatment device is used, the steel is prone to rolling on the crushing wheel during the crushing process of the can-shaped and cylindrical scrap steel, which affects the efficiency of the scrap steel pretreatment. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this patent is to provide a pretreatment device for recycling scrap steel.

[0005] The technical solution adopted by this patent to solve its technical problem is: a pre-treatment device for recycling scrap steel, including a crusher and a crushing wheel, the upper wall of the crusher is equipped with a cover, and an extrusion mechanism is installed in the cover;

[0006] There are two crushing wheels, both of which are rotatably mounted inside the crusher, the two crushing wheels are engaged with each other, and the two crushing wheels are connected to an external motor;

[0007] The extrusion mechanism includes a rotating wheel, a connecting rod, a push rod, a sliding sleeve and an extrusion plate. The inner wall of the cover shell is rotatably mounted with a rotating wheel, and the rotating wheel is connected to an external motor through a belt. One end of the connecting rod is rotatably mounted on the side wall of the rotating wheel, and the other end of the connecting rod is rotatably mounted on the side wall of the push rod. A sliding sleeve is installed in the cover shell, and the push rod is slidably mounted in the sliding sleeve. An extrusion plate is installed on the end of the push rod away from the connecting rod.

[0008] Furthermore, the crushing wheel includes a rotating shaft, a threaded hole, a protrusion and a bolt. The rotating shaft is rotatably installed on the inner wall of the crusher. One end of the rotating shaft passes through the side wall of the crusher and is connected to an external motor. A threaded hole is opened on the side wall of the rotating shaft. A bolt is inserted and installed on the side wall of the protrusion. The bolt can be screwed into the threaded hole, and the protrusion is installed on the outside of the rotating shaft through the cooperation of the bolt and the threaded hole.

[0009] Furthermore, a clamping block is installed on the lower wall of the protrusion, and a clamping groove is provided on the side wall of the rotating shaft, and the clamping block can slide into the clamping groove.

[0010] Furthermore, the side wall of the extrusion plate is provided with an anti-slip groove.

[0011] Furthermore, support feet are installed at the four corners of the crusher.

[0012] Furthermore, it also includes a material collecting vehicle, which is arranged below the crusher, and universal wheels are installed at the four corners of the lower wall of the material collecting vehicle.

[0013] The beneficial effects of this patent are:

[0014] The device arranges an extrusion mechanism above the crusher, and pre-processes the scrap steel through the extrusion plate in the extrusion mechanism, so that the can-shaped steel is clamped flat, thereby preventing the steel from rolling on the crushing wheel;

[0015] In addition, the bumps on the crushing wheel in the device can be disassembled. When a bump has a chip and needs to be replaced, the damaged bump can be replaced separately, saving the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of this patent.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] Explanation of the reference numerals: 1 crusher, 2 crushing wheel, 21 rotating shaft, 22 threaded hole, 23 protrusion, 24 bolt, 3 cover, 4 extrusion mechanism, 41 rotating wheel, 42 connecting rod, 43 push rod, 44 sliding sleeve, 45 extrusion plate, 5 block, 6 slot, 7 anti-slip slot, 8 support foot, 9 aggregate cart, 10 universal wheel. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0020] See also Figure 1 , Figure 2 This is a schematic diagram of the structure of the patent, a pre-treatment device for recycling scrap steel, including a crusher 1 and a crushing wheel 2, a cover 3 is installed on the upper wall of the crusher 1, and an extrusion mechanism 4 is installed in the cover 3;

[0021] The crushing wheels 2 are engaged with each other to crush the scrap steel entering the crusher 1 into pieces, which is convenient for re-melting the steel later.

[0022] Before the scrap steel enters the crusher 1, the squeezing mechanism 4 will first squeeze the scrap steel so that some can-shaped and cylindrical steels, such as gas tanks, are flattened;

[0023] Prevent such steel from rolling between the two crushing wheels 2;

[0024] There are two crushing wheels 2, both of which are rotatably mounted inside the crusher 1, the two crushing wheels 2 are engaged with each other, and the two crushing wheels 2 are connected to an external motor;

[0025] The extrusion mechanism 4 includes a rotating wheel 41, a connecting rod 42, a push rod 43, a sliding sleeve 44 and an extrusion plate 45. The rotating wheel 41 is rotatably mounted on the inner wall of the housing 3, and the rotating wheel 41 is connected to an external motor through a belt. One end of the connecting rod 42 is rotatably mounted on the side wall of the rotating wheel 41, and the other end of the connecting rod 42 is rotatably mounted on the side wall of the push rod 43. A sliding sleeve 44 is installed in the housing 3, and the push rod 43 is slidably mounted in the sliding sleeve 44. The extrusion plate 45 is installed on the end of the push rod 43 away from the connecting rod 42.

[0026] The rotating wheel 41 proposed in this article is connected to the motor driving the crushing wheel 2 through a belt, and its connecting rod 42 is set at the edge of the rotating wheel 41, so when the rotating wheel 41 rotates, it will drive the connecting rod 42 to move, so that it drives the push rod 43 to move back and forth through the connecting rod 42, thereby achieving the purpose of extruding the steel through the extrusion plate 45.

[0027] The crushing wheel 2 includes a rotating shaft 21, a threaded hole 22, a protrusion 23 and a bolt 24. The rotating shaft 21 is rotatably mounted on the inner wall of the crusher 1. One end of the rotating shaft 21 penetrates the side wall of the crusher 1 and is connected to an external motor. The side wall of the rotating shaft 21 is provided with a threaded hole 22. The side wall of the protrusion 23 is inserted with a bolt 24. The bolt 24 can be screwed into the threaded hole 22. The protrusion 23 is mounted on the outer side of the rotating shaft 21 through the cooperation of the bolt 24 and the threaded hole 22.

[0028] In the present device, six protrusions 23 are provided on each rotation shaft 21 in each circle, and the number of circles is determined according to the length of the rotation shaft 21. The six protrusions 23 fit together to form a circular ring, and each protrusion 23 can be removed individually, thereby saving the subsequent maintenance cost.

[0029] A clamping block 5 is installed on the lower wall of the protrusion 23, and a clamping slot 6 is provided on the side wall of the rotating shaft 21, into which the clamping block 5 can slide;

[0030] The protrusion 23 is fixed by the clamping block 5 and the bolt 24. The clamping block 5 can prevent the protrusion 23 from moving away from one end of the bolt 24 and tilting up.

[0031] The side wall of the extrusion plate 45 is provided with an anti-slip groove 7 .

[0032] Support feet 8 are installed at the four corners of the crusher 1;

[0033] The support legs 8 raise the discharge port below the crusher 1, making it convenient to push the collection vehicle 9 under the crusher 1 to collect the crushed steel.

[0034] The crusher 1 also includes a material collecting vehicle 9 , which is arranged below the crusher 1 , and universal wheels 10 are installed at the four corners of the lower wall of the material collecting vehicle 9 .

[0035] When the patent is working, the scrap steel is put into the opening above the cover 3. At this time, driven by the external motor, the push rod 43 drives the extrusion plate 45 to reciprocate, so that the steel is squeezed and flattened. The squeezed steel will fall into the crusher 1, and the two crushing wheels 2 will grind the steel into pieces, and then discharge it from the bottom of the crusher 1 into the aggregate truck 9;

[0036] After working for a period of time, if some of the protrusions 23 are damaged, the protrusions 23 can be removed from the rotating shaft 21 by rotating the bolts 24, which is very convenient and does not require the replacement of the entire crushing wheel 2, thus saving maintenance costs.

Claims

1. A pretreatment device for recycling scrap steel, comprising a crusher (1) and a crushing wheel (2), characterized in that: A cover shell (3) is installed on the upper wall of the crusher (1), and a squeezing mechanism (4) is installed inside the cover shell (3); There are two crushing wheels (2), both of which are rotatably mounted inside the crusher (1), the two crushing wheels (2) are engaged with each other, and the two crushing wheels (2) are connected to an external motor; The extrusion mechanism (4) comprises a rotating wheel (41), a connecting rod (42), a push rod (43), a sliding sleeve (44) and an extrusion plate (45); the rotating wheel (41) is rotatably mounted on the inner wall of the housing (3); the rotating wheel (41) is connected to an external motor via a belt; one end of the connecting rod (42) is rotatably mounted on the side wall of the rotating wheel (41); the other end of the connecting rod (42) is rotatably mounted on the side wall of the push rod (43); a sliding sleeve (44) is mounted in the housing (3); the push rod (43) is slidably mounted in the sliding sleeve (44); and the extrusion plate (45) is mounted on one end of the push rod (43) away from the connecting rod (42).

2. A pretreatment device for recycling scrap steel according to claim 1, characterized in that: The crushing wheel (2) comprises a rotating shaft (21), a threaded hole (22), a protrusion (23) and a bolt (24); the rotating shaft (21) is rotatably mounted on the inner wall of the crusher (1); one end of the rotating shaft (21) passes through the side wall of the crusher (1) and is connected to an external motor; the side wall of the rotating shaft (21) is provided with a threaded hole (22); a bolt (24) is inserted into the side wall of the protrusion (23) and installed; the bolt (24) can be screwed into the threaded hole (22); and the protrusion (23) is installed on the outer side of the rotating shaft (21) through the cooperation between the bolt (24) and the threaded hole (22).

3. A pretreatment device for recycling scrap steel according to claim 2, characterized in that: A clamping block (5) is mounted on the lower wall of the protrusion (23), and a clamping groove (6) is provided on the side wall of the rotating shaft (21), and the clamping block (5) can slide into the clamping groove (6).

4. A pretreatment device for recycling scrap steel according to claim 1, characterized in that: The side wall of the extrusion plate (45) is provided with an anti-slip groove (7).

5. The pretreatment device for recycling scrap steel according to claim 1, characterized in that: Support feet (8) are installed at the four corners of the crusher (1).

6. A pretreatment device for recycling scrap steel according to claim 1, characterized in that: It also includes a material collection vehicle (9), which is arranged below the crusher (1), and universal wheels (10) are installed at the four corners of the lower wall of the material collection vehicle (9).

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