Steel slag-fly ash synergistic excitation mixing equipment

Abstract

The invention discloses steel slag-fly ash synergistic excitation mixing equipment, and relates to the technical field of mixing equipment. The steel slag-fly ash synergistic excitation mixing equipment comprises a bottom seat, the mixing box group is mounted at the top of the bottom seat through screws; the gear adjusting material mixing structure is mounted at the bottom of the material mixing box set and extends into the material mixing box set, the gear adjusting material mixing structure is used for mixing steel slag and coal ash arranged in the material mixing box set, and the gear adjusting material mixing structure comprises a gear driving assembly mounted at the bottom of the bottom seat; the material mixing rod is connected with the gear driving assembly and extends into the material mixing box group; and the gear transmission assembly is in meshed connection with the gear driving assembly and is movably arranged in the mixing rod. According to the steel slag and coal ash mixing device, the contact area between the horizontal rotating blades and the steel slag and the coal ash can be increased, quicker and more efficient steel slag and coal ash mixing operation is achieved, and the problem that part of steel slag and part of coal ash cannot be mixed thoroughly is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, specifically to a steel slag-fly ash synergistic activation mixing equipment. Background Technology

[0002] Steel slag and fly ash are used as raw materials for preparing low-carbon cementitious materials. Their synergistic activation is mainly achieved through alkali activation or hydrothermal reaction mechanisms. The combination of the two can improve the strength and performance of cementitious materials. The preparation principle is as follows: first, the steel slag is mechanically activated (through mixing equipment, etc.), while carbon dioxide is added for mineralization curing. This, combined with the alkali activation of fly ash to further activate the steel slag, increases the surface area of ​​the steel slag. ), to construct a low-carbon cementitious material system.

[0003] Existing mixing equipment for treating steel slag waste requires the addition of fly ash to replace a portion of the alkaline activator in order to improve its environmental performance, thereby reducing the amount of strongly alkaline solution used and overcoming the bottlenecks of high carbon emissions and high costs associated with traditional alkaline activating materials. In practice, mixing steel slag and fly ash is typically done by stirring to improve mixing efficiency. However, this method has several drawbacks in actual operation. Firstly, the mixing structure is usually located in the middle, resulting in low efficiency when mixing large amounts of steel slag and fly ash. Secondly, the contact area between the mixing components and the steel slag and fly ash is relatively small, making it easy for some steel slag and fly ash to remain incompletely mixed. Summary of the Invention

[0004] The purpose of this invention is to provide a steel slag-fly ash co-activation mixing device to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a steel slag-fly ash co-activation mixing device, comprising: a bottom base; a mixing box assembly mounted on top of the bottom base by screws; and a gear-adjustable mixing structure mounted at the bottom of the mixing box assembly and extending into the interior of the mixing box assembly, the gear-adjustable mixing structure performing mixing treatment on the steel slag and fly ash disposed inside the mixing box assembly. The gear-adjustable mixing structure includes: a gear drive assembly installed at the bottom of the base; a mixing rod connected to the gear drive assembly and extending into the mixing box assembly; a gear transmission assembly meshing with the gear drive assembly and movably disposed inside the mixing rod; and a telescopic mixing blade assembly connected to the gear transmission assembly and disposed inside the mixing rod. The telescopic mixing blade assembly is provided in multiple parts, and the telescopic mixing blade assembly extends to the outside of the mixing rod.

[0006] As a preferred embodiment of the present invention, the mixing tank assembly includes: an outer protective tank mounted with screws at the top edge of the bottom seat; a mixing inner liner mounted on the top of the bottom seat and disposed inside the outer protective tank; an upper cover mounted on the top of the outer protective tank and the mixing inner liner; and an input nozzle mounted at an eccentric position on the top of the upper cover and communicating with the mixing inner liner. The mixing liner is equipped with a mixing rod and a telescopic mixing blade assembly.

[0007] As a preferred embodiment of the present invention, a carbon dioxide filling nozzle penetrating the outer protective tank is installed inside the mixing liner, and multiple carbon dioxide filling nozzles are provided. An alkali activator injection nozzle communicating with the mixing liner is installed inside the upper cover.

[0008] As a preferred embodiment of the present invention, the gear drive assembly includes: a first drive source mounted on the eccentric portion of the bottom of the base; a first gear connected to the output end of the first drive source and movably disposed on the eccentric portion of the bottom of the base; and an intermediate gear meshing with the side of the first gear and movably disposed at the center of the bottom of the base. The intermediate gear has a mixing rod that extends into the mixing liner at its top, and a gear transmission assembly is meshed with the side of the intermediate gear.

[0009] In a preferred embodiment of the present invention, a movable disc is installed on the outer side of the mixing rod, and the movable disc corresponds one-to-one with the telescopic mixing blade assembly. The movable disc is movably disposed inside the mixing liner. The movable disc has a telescopic mixing blade assembly extending outward, and the mixing rod has a pusher blade movably connected to the center of the top of the bottom seat.

[0010] As a preferred embodiment of the present invention, the gear transmission assembly includes: a second gear meshing with the side of the intermediate gear; a rotating rod connected to the second gear and movably disposed inside the lower mounting base; a half gear connected to the rotating rod and movably disposed at the bottom of the lower mounting base; a movable gear meshing with the side of the half gear and movably disposed at the bottom of the lower mounting base; and a rotating rod connected to the movable gear and extending into the mixing rod.

[0011] As a preferred embodiment of the present invention, the gear ratio of the second gear, the intermediate gear and the first gear is 1:4:1, the rotating rod passes through the intermediate gear, and a telescopic mixing blade assembly is installed on the outside of the rotating rod.

[0012] In a preferred embodiment of the present invention, the telescopic mixing blade assembly includes: a rotating disk connected to the rotating rod and movably disposed inside the movable disk; an arc-shaped groove formed at an eccentric position inside the rotating disk; a movable head movably disposed inside the arc-shaped groove and extending to the outside; a telescopic arm movably disposed outside the top of the movable head and extending to the outside of the movable disk; and a horizontal rotating blade rotatably connected to the bottom of the telescopic arm. The horizontally rotating blades are movably disposed inside the mixing liner.

[0013] As a preferred embodiment of the present invention, multiple arc-shaped grooves, movable heads, telescopic arms, and horizontal rotating blades are provided, and the movable heads are movably connected to the interior of the movable disc.

[0014] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. In the steel slag-fly ash co-activation mixing equipment, when steel slag and fly ash are mixed with added carbon dioxide gas to construct a low-carbon cementitious material preparation system, the first drive source can drive the gear meshing structure to operate. On one hand, it drives the mixing rod to rotate vertically, thus mixing the steel slag and fly ash on the outside of the mixing rod. On the other hand, the half-gear drives the gear transmission to intermittently rotate the rotating disk, and drives multiple horizontal rotating blades connected to the rotating disk to extend and retract, adjusting the distance between the horizontal rotating blades and the inner wall of the mixing tank, increasing the contact area between the horizontal rotating blades and the steel slag and fly ash, achieving faster and more efficient steel slag and fly ash mixing, and effectively avoiding the problem of incomplete mixing of some steel slag and fly ash. 2. In the steel slag-fly ash co-activation mixing equipment, when the mixing rod is rotated to mix the steel slag and fly ash, the pusher blades installed on the outside of the mixing rod can be rotated simultaneously. On the one hand, the rotation of the pusher blades generates a mixing force, realizing the mixing of steel slag and fly ash. On the other hand, after the mixing is completed, the mixed material can be automatically pushed to reduce the probability of some material sticking and accumulating at the bottom of the mixing tank. 3. In the steel slag-fly ash co-activation mixing equipment, when mixing steel slag and fly ash, carbon dioxide can be introduced into the outside of the steel slag and fly ash according to the actual mixing situation, and alkali activator can be introduced into the top of the steel slag and fly ash according to the actual mixing situation. This ensures that the alkali activation environment of steel slag and fly ash meets the reaction requirements of steel slag and fly ash, and effectively improves the reaction effect of steel slag and fly ash. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the entire structure of the present invention; Figure 3 This is a schematic diagram of the overall front cross-section of the present invention; Figure 4 This is a cross-sectional structural diagram showing the connection between the bottom seat and the mixing box assembly of the present invention; Figure 5 This is a schematic diagram showing the cross-sectional view of the connection between the mixing liner and the gear-adjusting mixing structure of the present invention. Figure 6 This is a schematic diagram of the connection between the gear drive assembly and the mixing rod of the present invention; Figure 7 This is a cross-sectional structural diagram showing the connection between the mixing rod and the telescopic mixing blade assembly of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged structural diagram of region A in the middle; In the picture: 10. Bottom seat; 100. Exhaust nozzle; 20. Mixing tank assembly; 201. Outer protective tank; 202. Inner mixing liner; 2021. Carbon dioxide filling nozzle; 203. Top cover; 2031. Alkali activator injection nozzle; 204. Input nozzle; 30. Gear-adjustable mixing structure; 301. Gear drive assembly; 302. Mixing rod; 303. Gear transmission assembly; 304. Telescopic mixing blade assembly; 3011, First drive source; 3012, First gear; 3013, Intermediate gear; 3021, Movable disc; 3022, Pusher blade; 3031, Second gear; 3032, Rotating rod; 30321, Lower mounting base; 3033, Half gear; 3034, Movable gear; 3035, Rotating rod; 3041, Rotary disk; 3042, Arc-shaped groove; 3043, Movable head; 3044, Telescopic arm; 3045, Horizontally rotating blade. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] Please see Figures 1-8 The steel slag-fly ash co-activation mixing equipment includes a base 10; a mixing box assembly 20 installed on top of the base 10 by screws; and a gear-adjusting mixing structure 30 installed at the bottom of the mixing box assembly 20 and extending into the mixing box assembly 20. The gear-adjusting mixing structure 30 mixes the steel slag and fly ash disposed inside the mixing box assembly 20. The gear-adjusting mixing structure 30 includes: a gear drive assembly 301 installed at the bottom of the base 10; a mixing rod 302 connected to the gear drive assembly 301 and extending into the mixing box assembly 20; a gear transmission assembly 303 meshing with the gear drive assembly 301 and movably disposed inside the mixing rod 302; and a telescopic mixing blade assembly 304 connected to the gear transmission assembly 303 and disposed inside the mixing rod 302. Multiple telescopic mixing blade assemblies 304 are provided, and the telescopic mixing blade assemblies 304 extend to the outside of the mixing rod 302.

[0020] It should be noted that an evacuation nozzle 100 is provided at the eccentric part inside the bottom seat 10.

[0021] The working principle described above is as follows: When steel slag and fly ash are mixed and synergistically activated (through alkali activation) to construct a low-carbon cementitious material system, the steel slag and fly ash are first poured into the mixing box assembly 20, and the gear drive assembly 301 is activated (forward and reverse rotation). On one hand, this drives the mixing rod 302 to rotate, causing the steel slag and fly ash on the outside of the mixing rod 302 to move vertically, thus achieving the mixing operation of steel slag and fly ash. On the other hand, the gear transmission assembly 303 can intermittently drive the telescopic mixing blade assembly 304 to operate, automatically achieving mixing with an automatically adjustable horizontal distance. This increases the contact area between the telescopic mixing blade assembly 304 and the steel slag and fly ash, accelerating the mixing efficiency of steel slag and fly ash and avoiding the problem of incomplete mixing of some steel slag and fly ash.

[0022] For details, please refer to the following: Figure 4The mixing tank assembly 20 includes: an outer protective tank 201 installed at the top edge of the bottom seat 10 by screws; a mixing inner liner 202 installed on the top of the bottom seat 10 and located inside the outer protective tank 201; an upper cover 203 installed on the top of the outer protective tank 201 and the mixing inner liner 202; and an input nozzle 204 installed at the eccentric top of the upper cover 203 and connected to the mixing inner liner 202. The mixing inner liner 202 is provided with a mixing rod 302 and a telescopic mixing blade assembly 304 inside.

[0023] In this design, the mixing liner 202 is equipped with a carbon dioxide inlet 2021 that penetrates the outer protective tank 201. Multiple carbon dioxide inlets 2021 are provided. The upper cover 203 is equipped with an alkali activator injection nozzle 2031 that communicates with the mixing liner 202.

[0024] In the steel slag-fly ash co-activation mixing equipment of the present invention, steel slag and fly ash are poured into the mixing liner 202 through the inlet 204; carbon dioxide inlet 2021 transmits carbon dioxide in real time according to the reaction situation; alkali activator injection nozzle 2031 can supplement part of alkali activator according to the actual reaction situation (if fly ash is insufficient), to ensure the normal and stable progress of the reaction.

[0025] For details, please refer to the following: Figure 5 and Figure 6 The gear drive assembly 301 includes: a first drive source 3011 installed at the bottom eccentric position of the bottom of the base 10; a first gear 3012 connected to the output end of the first drive source 3011 and movably disposed at the bottom eccentric position of the bottom of the base 10; and an intermediate gear 3013 meshing with the side of the first gear 3012 and movably disposed at the bottom center of the base 10. The top of the intermediate gear 3013 is equipped with a mixing rod 302 extending into the mixing liner 202, and the side of the intermediate gear 3013 is meshed with a gear transmission assembly 303.

[0026] In the steel slag-fly ash co-activation mixing device of the present invention, when steel slag and fly ash are mixed, the first drive source 3011 is activated (forward and reverse rotation), driving the first gear 3012 connected to the output end of the first drive source 3011, and causing the intermediate gear 3013 meshing with the side of the first gear 3012 to rotate. When the intermediate gear 3013 rotates, the mixing rod 302 connected to its top will rotate, driving the steel slag and fly ash on the outside of the mixing rod 302 to perform the mixing operation.

[0027] For details, please refer to the following: Figure 5 and Figure 6A movable disc 3021 is installed on the outside of the mixing rod 302. The movable disc 3021 corresponds one-to-one with the telescopic mixing blade assembly 304. The movable disc 3021 is movably disposed inside the mixing liner 202. The telescopic mixing blade assembly 304 extending to the outside is installed inside the movable disc 3021. A pusher blade 3022 is movably connected to the center of the top of the bottom seat 10 on the outside of the mixing rod 302.

[0028] In the steel slag-fly ash synergistic activation mixing device of the present invention, the design of the pusher blade 3022 drives the steel slag and fly ash set at the top to perform mixing treatment on the one hand, and pushes the material at the top of the bottom seat 10 on the other hand, reducing the probability of material adhesion and blockage inside the bottom seat 10.

[0029] For details, please refer to the following: Figure 5 and Figure 6 The gear transmission assembly 303 includes: a second gear 3031 meshing with the side of the intermediate gear 3013; a rotating rod 3032 connected to the second gear 3031 and movably disposed inside the lower mounting base 30321; a half gear 3033 connected to the rotating rod 3032 and movably disposed at the bottom of the lower mounting base 30321; a movable gear 3034 meshing with the side of the half gear 3033 and movably disposed at the bottom of the lower mounting base 30321; and a rotating rod 3035 connected to the movable gear 3034 and extending into the mixing rod 302.

[0030] In this design, the gear ratio of the second gear 3031, the intermediate gear 3013 and the first gear 3012 is 1:4:1. The rotating rod 3035 passes through the intermediate gear 3013, and a telescopic mixing blade assembly 304 is installed on the outside of the rotating rod 3035.

[0031] In the steel slag-fly ash co-activation mixing device of the present invention, when the intermediate gear 3013 rotates, the second gear 3031 meshing with its side will rotate, driving the rotating rod 3032 connected to the second gear 3031 to rotate. When the rotating rod 3032 rotates, the half gear 3033 mounted on its side will rotate, intermittently driving the movable gear 3034 meshing with its side to rotate, driving the rotating rod 3035 connected to the movable gear 3034 to rotate.

[0032] For details, please refer to the following: Figure 7 and Figure 8The telescopic mixing blade assembly 304 includes: a rotating disk 3041 connected to a rotating rod 3035 and movably disposed inside a movable disk 3021; ​​an arc-shaped groove 3042 formed at an eccentric position inside the rotating disk 3041; a movable head 3043 movably disposed inside the arc-shaped groove 3042 and extending to the outside; a telescopic arm 3044 movably disposed on the top outside of the movable head 3043 and extending to the outside of the movable disk 3021; ​​and a horizontal rotating blade 3045 rotatably connected to the bottom of the telescopic arm 3044, wherein the horizontal rotating blade 3045 is movably disposed inside the mixing liner 202.

[0033] In this design, multiple arc-shaped grooves 3042, movable heads 3043, telescopic arms 3044, and horizontal rotating blades 3045 are provided. The movable heads 3043 are movably connected to the inside of the movable disk 3021.

[0034] In the steel slag-fly ash co-activation mixing device of the present invention, when the rotating rod 3035 rotates (forward and reverse), the rotating disk 3041 installed on the outside of the rotating rod 3035 will rotate, and through the arc-shaped groove 3042 opened at the eccentric part inside the rotating disk 3041, the movable head 3043 connected inside the arc-shaped groove 3042 will operate, and the telescopic arm 3044 rotatably connected to the movable head 3043 will move telescopically inside the movable disk 3021, and the horizontal rotating blade 3045 rotatably connected to the side of the telescopic arm 3044 will move telescopically, adjusting the distance between the horizontal rotating blade 3045 and the inner wall of the mixing liner 202.

[0035] When the horizontal rotating blade 3045 comes into contact with the steel slag and fly ash, the driving force that drives the horizontal rotating blade 3045 to rotate vertically can simultaneously drive the steel slag and fly ash on the outside of the horizontal rotating blade 3045 to move, thus realizing the mixing operation of steel slag and fly ash.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0037] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0038] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. A steel slag-fly ash co-activation mixing device, characterized in that, include: Bottom seat (10); mixing box assembly (20) mounted on top of the bottom seat (10) by screws; gear-adjustable mixing structure (30) mounted on the bottom of the mixing box assembly (20) and extending into the mixing box assembly (20), the gear-adjustable mixing structure (30) mixing the steel slag and fly ash disposed inside the mixing box assembly (20). The gear-adjustable mixing structure (30) includes: a gear drive assembly (301) installed at the bottom of the base (10); a mixing rod (302) connected to the gear drive assembly (301) and extending into the mixing box assembly (20); a gear transmission assembly (303) meshing with the gear drive assembly (301) and movably disposed inside the mixing rod (302); and a telescopic mixing blade assembly (304) connected to the gear transmission assembly (303) and disposed inside the mixing rod (302). The telescopic mixing blade assembly (304) is provided in multiple ways, and the telescopic mixing blade assembly (304) extends to the outside of the mixing rod (302).

2. The steel slag-fly ash synergistic activation mixing equipment according to claim 1, characterized in that: The mixing tank assembly (20) includes: An outer protective tank (201) is installed at the top edge of the bottom seat (10) by screws; a mixing liner (202) is installed on the top of the bottom seat (10) and located inside the outer protective tank (201); an upper cover (203) is installed on the top of the outer protective tank (201) and the mixing liner (202); and an input nozzle (204) is installed at the eccentric top of the upper cover (203) and communicates with the mixing liner (202). The mixing liner (202) is provided with a mixing rod (302) and a telescopic mixing blade assembly (304).

3. The steel slag-fly ash synergistic activation mixing equipment according to claim 2, characterized in that: The mixing liner (202) is equipped with a carbon dioxide inlet (2021) that penetrates the outer protective tank (201). Multiple carbon dioxide inlets (2021) are provided. The upper cover (203) is equipped with an alkali activator injection nozzle (2031) that communicates with the mixing liner (202).

4. The steel slag-fly ash synergistic activation mixing equipment according to claim 2, characterized in that: The gear drive assembly (301) includes: a first drive source (3011) installed at the bottom eccentric position of the bottom of the base (10); a first gear (3012) connected to the output end of the first drive source (3011) and movably disposed at the bottom eccentric position of the bottom of the base (10); and an intermediate gear (3013) meshing with the side of the first gear (3012) and movably disposed at the bottom center of the bottom of the base (10). The intermediate gear (3013) is equipped with a mixing rod (302) extending into the mixing liner (202) at its top, and a gear transmission assembly (303) is meshed with the side of the intermediate gear (3013).

5. The steel slag-fly ash synergistic activation mixing equipment according to claim 4, characterized in that: A movable disc (3021) is installed on the outside of the mixing rod (302). The movable disc (3021) corresponds one-to-one with the telescopic mixing blade assembly (304). The movable disc (3021) is movably disposed inside the mixing liner (202). The movable disc (3021) is equipped with a telescopic mixing blade assembly (304) extending to the outside, and the mixing rod (302) is equipped with a pusher blade (3022) movably connected to the center of the top of the bottom seat (10).

6. The steel slag-fly ash synergistic activation mixing equipment according to claim 5, characterized in that: The gear transmission assembly (303) includes: a second gear (3031) meshing with the side of the intermediate gear (3013); a rotating rod (3032) connected to the second gear (3031) and movably disposed inside the lower mounting base (30321); a half gear (3033) connected to the rotating rod (3032) and movably disposed at the bottom of the lower mounting base (30321); a movable gear (3034) meshing with the side of the half gear (3033) and movably disposed at the bottom of the lower mounting base (30321); and a rotating rod (3035) connected to the movable gear (3034) and extending into the mixing rod (302).

7. The steel slag-fly ash synergistic activation mixing equipment according to claim 6, characterized in that: The gear ratio of the second gear (3031), the intermediate gear (3013) and the first gear (3012) is 1:4:

1. The rotating rod (3035) passes through the intermediate gear (3013). A telescopic mixing blade assembly (304) is installed on the outside of the rotating rod (3035).

8. The steel slag-fly ash co-activation mixing equipment according to claim 7, characterized in that: The telescopic mixing blade assembly (304) includes: a rotating disk (3041) connected to the rotating rod (3035) and movably disposed inside the movable disk (3021); an arc-shaped groove (3042) formed at an eccentric position inside the rotating disk (3041); a movable head (3043) movably disposed inside the arc-shaped groove (3042) and extending to the outside; a telescopic arm (3044) movably disposed on the top outside of the movable head (3043) and extending to the outside of the movable disk (3021); and a horizontal rotating blade (3045) rotatably connected to the bottom of the telescopic arm (3044). The horizontal rotating blade (3045) is movably disposed inside the mixing liner (202).

9. The steel slag-fly ash synergistic activation mixing equipment according to claim 8, characterized in that: Multiple arc-shaped grooves (3042), movable heads (3043), telescopic arms (3044), and horizontal rotating blades (3045) are provided, and the movable heads (3043) are movably connected to the interior of the movable disc (3021).

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