Concrete steel fiber feeding device

Abstract

The utility model relates to the technical field of concrete manufacturing equipment, and provides a concrete steel fiber feeding device which comprises a storage hopper, a vibrating screen assembly, a disperser and a conveying and weighing device. The vibrating screen assembly is arranged below the storage hopper; the disperser is arranged on one side of an outlet of the vibrating screen assembly and comprises a shell and a scattering assembly, a mounting space is formed in the shell, and the scattering assembly is rotationally arranged in the mounting space, can rotate relative to the shell and is used for secondarily scattering the steel fibers; and the conveying and weighing device is arranged below one side of the outlet of the disperser and is used for conveying the steel fibers and weighing the conveyed steel fibers. According to the utility model, the vibrating screen assembly and the disperser realize twice scattering of steel fibers, can realize effective scattering of agglomerated steel fibers, further can realize full-mechanical operation in the whole process by combining with the conveying and weighing device, avoids safety risks caused by manual operation, and can improve the feeding efficiency and the feeding accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production equipment, in particular to a concrete steel fiber feeding device. Background Art

[0002] Ultra-high-performance concrete (UHPC), characterized by exceptional strength, toughness, and durability, has become a new system that represents a significant leap forward in the performance of cement-based materials. The incorporation of fibers is a key factor in UHPC's improved strength and toughness compared to conventional concrete. Steel fibers, in particular, have become the most widely used fiber in UHPC production. Currently, the most common UHPC steel fibers used in engineering projects are 0.2 mm in diameter and 13 mm in length. This large aspect ratio makes the steel fibers easily clumping and unable to disperse, impacting the concrete's workability and strength.

[0003] Currently, mixing plants often use manual feeding to add steel fibers. The extremely fine steel fibers can easily prick hands, posing a safety hazard. Furthermore, because steel fibers arrive in a three-dimensional, randomly oriented state, they easily clump during mixing, severely impacting concrete performance.

[0004] In related technologies, vibrating screens are added to some production processes to enhance the dispersion of fibers, but the actual effect is not obvious, and the operation process still requires manual participation, which cannot fully realize mechanized production of the entire process. Therefore, there is an urgent need for a feeding device that can perform fully mechanized operations. Utility Model Content

[0005] The utility model provides a concrete steel fiber feeding device, which is used to solve the defects of the prior art such as unclear dispersion effect, need for manual participation and low mechanization degree.

[0006] The utility model provides a concrete steel fiber feeding device, comprising: a storage hopper, a vibrating screen assembly, a disperser and a transmission weighing device; the vibrating screen assembly is arranged below the storage hopper, and the vibrating screen assembly is used to break up the steel fibers once; the disperser is arranged on one side of the outlet of the vibrating screen assembly, and the disperser comprises an outer shell and a breaking up assembly, an installation space is formed in the outer shell, and the breaking up assembly is rotatably arranged in the installation space, the breaking up assembly can rotate relative to the outer shell, and is used to break up the steel fibers twice; the transmission weighing device is arranged below one side of the outlet of the disperser, and the transmission weighing device is used to transmit steel fibers and weigh the transmitted steel fibers.

[0007] According to the concrete steel fiber feeding device provided by the utility model, the outer shell is constructed as an arc-shaped structure, and the outer shell is provided with an input port and an output port, the input port is connected to the vibrating screen assembly, and the output port is located above the transmission weighing device; the scattering assembly includes a driving component, a turntable and a plurality of scattering blades, the turntable is rotatably arranged in the installation space, the turntable is connected to the driving component, and the plurality of scattering blades are arranged at intervals along the circumference of the turntable, and the scattering blades are used to scatter the steel fibers secondary during the rotation process.

[0008] According to the concrete steel fiber feeding device provided by the utility model, the output port is located directly above the transmission weighing device.

[0009] According to the concrete steel fiber feeding device provided by the utility model, the output port is perpendicular to the rotation direction of the scattering blades.

[0010] According to the concrete steel fiber feeding device provided by the utility model, the plurality of scattering blades are evenly distributed on the turntable, each of the scattering blades extends from the radial direction of the turntable to the inner wall of the outer shell, and a rotational gap is formed between the end of the scattering blade and the inner wall surface of the outer shell.

[0011] According to the concrete steel fiber feeding device provided by the utility model, the vibrating screen assembly includes a main frame, a vibrator, a sieve plate and a guide plate. The sieve plate is horizontally installed on the main frame. The vibrator is provided on both sides of the sieve plate. The vibrator is used to drive the sieve plate to vibrate. The guide plate is connected to the main frame and is located below the sieve plate. The guide plate is used to guide the steel fibers that have been broken up once to move toward their own outlet direction.

[0012] According to the concrete steel fiber feeding device provided by the utility model, the guide plate is arranged to be tilted downward so that the steel fiber can slide along the inclined surface of the guide plate.

[0013] According to the concrete steel fiber feeding device provided by the utility model, a scattering space is formed between the turntable and the outer shell; the discharge direction of the guide plate outlet is perpendicular to the rotation direction of the scattering component, the guide plate outlet is connected to the scattering space, and the part close to the far end of the blade is located in the scattering space, so that the blade scatters the steel fibers through the part located in the scattering space when rotating.

[0014] According to the concrete steel fiber feeding device provided by the utility model, a bag breaking device is further provided in the storage hopper, and the bag breaking device is used to open the packaging bag containing the steel fiber.

[0015] According to the concrete steel fiber feeding device provided by the utility model, the transmission weighing device includes a belt scale, the belt scale is arranged obliquely, and a part of the belt scale is located below the disperser.

[0016] The utility model provides a concrete steel fiber feeding device, which achieves double breaking of steel fibers through a vibrating screen assembly and a disperser, and can effectively break up agglomerated steel fibers. Furthermore, by combining with a transmission weighing device, it can realize full mechanization in the entire process, avoiding the safety risks brought by manual operation, and can improve feeding efficiency and feeding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the concrete steel fiber feeding device provided by the utility model.

[0019] Figure 2 It is a structural schematic diagram of a bag breaking device in a concrete steel fiber feeding device provided by the utility model.

[0020] Reference numerals:

[0021] 1. Storage hopper; 11. Electric valve; 2. Vibrating screen assembly; 21. Main frame; 22. Guide plate; 3. Disperser; 31. Housing; 32. Turntable; 33. Dispersing blades; 34. Dispersing space; 4. Transmission weighing device; 5. Bag breaking device; 51. Support frame; 52. Cutting tool; 53. Bolt handle. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0027] Steel fibers are primarily used to enhance the tensile strength and crack resistance of concrete. In construction, they improve concrete's toughness and durability, reducing cracking. They are commonly used in high-load areas such as bridges, roads, and industrial surfaces. Some related technologies employ manual feeding during operations, which can easily lead to operator injury and pose significant safety risks. They can also cause inaccurate feeding, impacting concrete quality.

[0028] In other related technical solutions, manual and equipment mixing operations are adopted, that is, equipment is used for preliminary dispersion, but the overall dispersion effect is not obvious, so manual secondary operations are required to achieve overall dispersion and feeding operations. This operation method is difficult to achieve full mechanized operation, resulting in limited feeding efficiency and feeding quality, and the above problems need to be further solved.

[0029] Regarding the problems in related technologies, such as Figure 1 As shown, the utility model provides a concrete steel fiber feeding device, including a storage hopper 1, a vibrating screen assembly 2, a disperser 3 and a transmission weighing device 4; the vibrating screen assembly 2 is arranged below the storage hopper 1, and the vibrating screen assembly 2 is used to break up the steel fibers once; the disperser 3 is arranged on one side of the outlet of the vibrating screen assembly 2, and the disperser 3 includes a shell 31 and a breaking up assembly, an installation space is formed in the shell 31, and the breaking up assembly is rotatably arranged in the installation space, and the breaking up assembly can rotate relative to the shell 31 and is used to break up the steel fibers twice; the transmission weighing device 4 is arranged below one side of the outlet of the disperser 3, and the transmission weighing device 4 is used to transmit the steel fibers and weigh the transmitted steel fibers. When the steel fibers are fed, a full process of feeding, breaking up, and quantitative feeding is required. In this embodiment, the effective breaking up of the steel fibers is achieved by the vibrating screen assembly 2 and the disperser 3, thereby achieving efficient feeding and improving the quality and automation of feeding.

[0030] It is understandable that when adding steel fibers to concrete, they need to be added in a quantitative and dispersed manner. The accuracy of the quantitative addition and the degree of dispersion of the steel fibers will affect the quality of the concrete. In this embodiment, the vibrating screen component 2 is used to achieve larger agglomerated steel fibers, and then the steel fibers fall through the sieve holes of the vibrating screen component 2. After falling through the sieve holes, the steel fibers may be agglomerated into small agglomerates due to the action of the sieve holes. At this time, a second dispersion is performed through the dispersion component, which improves the overall dispersion quality and enables the effective dispersion of the steel fibers, thereby enabling stable and efficient feeding operations.

[0031] Furthermore, the coordinated arrangement of the various components forms an integrated device that enables full-process feeding, improves the degree of automation of the entire process, and avoids the quality and efficiency limitations associated with manual assistance in related technologies. During the full-process mechanized operation, it is necessary to ensure the effectiveness and stability of the entire operation process. In this embodiment, effective dispersion of the steel fibers is achieved through two-stage breakup, which serves as the basis for full-process mechanization. The provision of the transmission weighing device 4 enables quantitative delivery during the pouring process, controlling the proportion of added steel fibers and improving the quality of the concrete.

[0032] In the specific setting, an electric valve 11 is provided at the bottom of the storage hopper 1, and the electric valve 11 is used to open the opening size at the bottom of the storage hopper 1, thereby adjusting the material conveying speed.

[0033] In a specific embodiment, the outlet of the vibrating screen assembly 2 is located at a lower position on one side of the disperser 3, and the discharge direction of the outlet of the vibrating screen assembly 2 is perpendicular to the rotation direction of the dispersion assembly, so as to achieve uniformity of the incoming material and ensure the effect of secondary dispersion. In this way, the distance of the steel fiber transported by the disperser 3 can be reduced, and rapid dispersion and transportation to the transmission weighing device 4 can be achieved to avoid the phenomenon of re-agglomeration during excessive dispersion and transportation, thereby improving the quality of dispersion.

[0034] According to an embodiment provided by the present invention, the vibrating screen assembly includes a main frame 21, a vibrator, a sieve plate and a guide plate 22. The sieve plate is horizontally mounted on the main frame 21. The vibrator is provided on both sides of the sieve plate. The vibrator is used to drive the sieve plate to vibrate. The guide plate 22 is connected to the main frame 21 and is located below the sieve plate. The guide plate 22 is used to guide the steel fibers that have been broken up once to move toward their own outlet direction. Steel fibers are often packaged and transported in individual packaging bags when leaving the factory. After opening, the steel fibers often have a large agglomerated structure. In this embodiment, the vibrating screen assembly can quickly and efficiently achieve preliminary breaking up of the steel fibers, achieve effective breaking up operations, and improve the quality and efficiency of the breaking up operations.

[0035] In the specific setting, a plurality of sieve holes are provided on the sieve plate, which are used to break up the larger agglomerated steel fibers during the vibration process and discharge them from the sieve holes. The steel fibers falling from the sieve holes are moved to the outlet position through the guide plate 22. At this time, due to the action of the vibration and the sieve holes, most of the steel fibers are broken up, and the agglomerated structures that are not completely broken up will also be smaller than the sieve holes, which is beneficial to the subsequent breaking operation of the disperser 3.

[0036] It should be noted that the vibrator and the sieve plate are installed using conventional installation methods. Specifically, in related installation techniques, the vibrator can be installed on the main frame 21 by means of a bracket or direct fixation, and the sieve plate is arranged on the main frame 21 via a support frame. The sieve plate is connected to the vibrator so that the vibrator can transmit vibration to the sieve plate to achieve vibration of the sieve plate.

[0037] According to one embodiment of the present invention, the guide plate 22 is tilted downward so that the steel fibers can slide along the inclined surface of the guide plate 22. The tilted arrangement of the guide plate 22 allows the steel fibers to slide under the action of gravity and eventually slide to the end of the guide plate 22, that is, its own outlet position, thereby achieving efficient discharge of the steel fibers.

[0038] In the specific setting, the angle between the guide plate 22 and the horizontal direction is 15 degrees, which allows the steel fibers dropped from the screen plate to slide smoothly under the guidance of the guide plate 22, thereby facilitating the uniform discharge of the steel fibers.

[0039] In a specific embodiment, a dispersing space 34 is formed between the rotating disk 32 and the housing 31. The discharge direction of the guide plate 22 outlet is perpendicular to the rotation direction of the dispersing assembly. The outlet of the guide plate 22 is connected to the dispersing space 34, and the portion near the distal end of the blades 33 is located within the dispersing space 34. This allows the blades 33 to disperse the steel fibers through the portion located within the dispersing space 34 during rotation. The outlet of the guide plate 22 is also the outlet of the vibrating screen assembly 2. In this embodiment, restricting the discharge direction of the outlet ensures that the steel fibers discharged through the guide plate 22 enter the disperser 3 evenly, thereby achieving a stable output of the steel fibers. Furthermore, during dispersing, the guide plate 22 directs the fibers into the dispersing space 34, while the portion near the distal end of the blades 33 is located within the dispersing space 34. The distal portion of the blades 33 has a higher linear velocity, resulting in a better dispersing effect. This approach ensures uniform delivery of the steel fibers into the disperser 3 and improves the quality of the dispersing operation.

[0040] It can be understood that, by setting the turntable 32, a ring-shaped breaking space 34 is formed between the turntable 32 and the inner wall of the outer shell 31, the outlet of the guide plate 22 is connected to the breaking space 34, and the distal end of the blade 33 (that is, the end away from the center position of the turntable) is partially located in the breaking space 34, which can make full use of its higher linear speed, thereby realizing efficient breaking operation of the steel fiber.

[0041] In a further example, Figure 1As shown, the guide plate 22 has side plates on both sides, which are connected to the main frame 21 to form a guide channel, thereby preventing the steel fibers from splashing outward after falling onto the guide plate 22 and preventing the steel fibers from falling. In addition, there is a drop distance between the guide surface of the guide plate 22 and the screen plate in the vertical direction. In this way, when the steel fibers fall onto the guide plate 22, they can be impacted, thereby further enhancing the breaking effect.

[0042] According to an embodiment provided by the present invention, the housing 31 is constructed as an arc-shaped structure, and the housing 31 is provided with an input port and an output port, the input port is connected to the vibrating screen assembly 2, and the output port is located above the transmission weighing device 4; the scattering assembly includes a driving component, a turntable and a plurality of scattering blades, the turntable is arranged to rotate in the installation space, the turntable is connected to the driving component, and the plurality of scattering blades are arranged at intervals along the circumference of the turntable, and the scattering blades are used to scatter the steel fibers twice during the rotation process. After the steel fibers are vibrated and screened by the screen plate, the steel fibers transported to the disperser 3 may have smaller agglomerate structures. In this embodiment, the rotation of the scattering blades further achieves the scattering of smaller agglomerated steel fibers, thereby achieving effective scattering of the steel fibers and improving the quality and efficiency of the scattering operation.

[0043] It can be understood that the driving component drives the turntable to rotate, and the rotation of the turntable can drive the breaking blades to rotate. The rotation of the breaking blades can achieve effective hitting of the steel fibers and drive the steel fibers to move, so that the steel fibers enter the transmission weighing device 4 for weighing and transmission after the second breaking.

[0044] In a specific configuration, the driving component is a drive motor, the rotating shaft of which is connected to the turntable, so that the turntable can be driven to rotate under electric drive. During the rotation of the turntable, the steel fibers can be broken up and driven to the output position of the disperser 3, thereby achieving the breakup and transfer of the steel fiber material. The speed of the drive motor is 60-180 r / min, and the length of the breakup blade is approximately 50 cm, so that the breakup blade has a suitable linear velocity, thereby ensuring its secondary breakup effect.

[0045] In a specific embodiment, an opening serving as an input port is provided on one side of the outer shell 31 close to the vibrating screen assembly 2, and the opening is connected to the outlet of the vibrating screen assembly 2, so that the material output by the vibrating screen assembly 2 is input into the outer shell 31 from the input port, and another opening serving as an output port is correspondingly provided at the bottom of the outer shell 31 close to the transmission weighing device 4, and the output port can quickly output the steel fibers entering the disperser 3.

[0046] During the secondary breaking up, the outlet of the vibrating screen assembly 2 is perpendicular to the rotation direction of the turntable. After the steel fibers enter the shell 31, they are further beaten and dispersed by the breaking up assembly, and finally the broken up steel fibers are output from the output port.

[0047] According to one embodiment of the present invention, the output port is located directly above the transfer weighing device 4. The material that has been secondary dispersed in the disperser 3 needs to be transported to the transfer weighing device 4 for entry into the next process. In this embodiment, by opening the output port above the weighing device, efficient transmission is achieved.

[0048] Specifically, the output port is opened at the bottom of the shell 31 , which enables the steel fibers entering the disperser 3 to be quickly output from the output port and prevents some of the steel fibers from being deposited in the shell 31 .

[0049] The output port is designed to be perpendicular to the direction of rotation of the scattering blades. This design reduces material retention and friction on rotating parts, reduces wear, and helps distribute the material more evenly and efficiently, reducing material blockage.

[0050] According to the specific embodiment provided by the present invention, multiple scattering blades are evenly distributed on the rotating disk. Each scattering blade extends from the radial direction of the rotating disk to the inner wall of the housing 31, and a rotational clearance is provided between the end of the scattering blade and the inner wall of the housing 31. During the process of scattering the steel fibers, contact with the scattering blades is required to achieve scattering. In this embodiment, the scattering blades extend into the inner wall of the housing 31, achieving high-quality scattering.

[0051] In a specific example, the length of the scattering blade is greater than the radius of the turntable, that is, a portion of the scattering blade is located outside the turntable. The scattering blade located outside the turntable can increase the contact area with the steel fiber, thereby improving the quality of the scattering operation.

[0052] According to one embodiment of the present invention, the transport weighing device 4 includes a belt scale, which is tilted, with a portion of the belt scale positioned below the disperser 3. This tilted belt scale improves material flow and reduces material retention in the weighing area, thereby enhancing weighing accuracy and speed. This design also helps prevent material accumulation and agglomeration, maintaining the stability and long-term reliability of the weighing system.

[0053] The belt is referred to as a conventional transmission weighing device 4 , and those skilled in the art can easily obtain its specific structure and installation method, so it will not be described in detail here.

[0054] According to one embodiment of the present invention, a bag-opening device 5 is further provided within the storage hopper 1. The bag-opening device 5 is used to open the packaging bag containing the steel fiber. To improve the mechanization level of the entire process, in this embodiment, the bag-opening device 5 is used to automatically open the packaging bag, thereby avoiding the need for manual bag-opening operations and improving the overall automation level.

[0055] In the specific setting, the bag breaking device 5 includes a support frame 51 and a cutter 52. The cutter 52 is arranged on the support frame 51 through a connecting piece, and the support frame 51 is fixedly arranged in the storage hopper 1. The setting of the connecting piece can facilitate the replacement and installation of the cutter 52.

[0056] It is understood that the blade side of the cutter 52 is vertically upwardly arranged, and the two ends of the main body of the cutter 52 have connecting parts, which are connected to the support frame 51 through connecting parts, thereby achieving the fixation of the cutter 52. When breaking the bag, the lifting equipment lifts the packaging bag containing steel fibers to the top of the storage hopper 1, and then cuts the packaging bag with the blade side of the cutter 52, thereby achieving the discharge of the steel fibers inside the packaging bag.

[0057] Specific as Figure 2 As shown, the connecting part includes a bolt handle 53, and bolt holes are respectively provided on both ends of the tool 52. The corresponding support frame 51 has limiting grooves at both ends. The two ends of the tool 52 are inserted into the limiting grooves and connected and fixed by the bolt handle 53, thereby achieving the fixation of the tool 52.

[0058] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment realizes the double breaking up of steel fibers through the vibrating screen assembly 2 and the disperser 3, which can effectively break up the agglomerated steel fibers, and then by combining with the transmission weighing device 4, it can realize full mechanized operation in the entire process, avoiding the safety risks brought by manual operation, and can improve the feeding efficiency and feeding accuracy.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A concrete steel fiber feeding device, characterized in that: include: Storage hopper; A vibrating screen assembly is provided below the storage hopper and is used to break up the steel fibers at one time; A disperser is provided on one side of the outlet of the vibrating screen assembly, comprising a housing and a breaking up assembly. An installation space is formed in the housing, and the breaking up assembly is rotatably provided in the installation space. The breaking up assembly can rotate relative to the housing and is used to break up the steel fibers for a second time. A transmission weighing device is provided below one side of the disperser outlet and is used for transmitting steel fibers and weighing the transmitted steel fibers.

2. The concrete steel fiber feeding device according to claim 1, characterized in that: The shell is constructed in an arc shape and is provided with an input port and an output port. The input port is connected to the vibrating screen assembly, and the output port is located above the transmission weighing device. The breaking up assembly includes a driving component, a turntable and a plurality of breaking up blades. The turntable is rotatably arranged in the installation space and is connected to the driving component. The plurality of breaking up blades are arranged at intervals along the circumference of the turntable. The breaking up blades are used to break up the steel fibers for a second time during the rotation process.

3. The concrete steel fiber feeding device according to claim 2, characterized in that: The output port is located directly above the transmission weighing device.

4. The concrete steel fiber feeding device according to claim 2, characterized in that: The output port is perpendicular to the rotation direction of the scattering blades.

5. The concrete steel fiber feeding device according to claim 2, characterized in that: A plurality of scattering blades are evenly distributed on the rotating disk. Each scattering blade extends from the radial direction of the rotating disk to the inner wall of the shell, and a rotation gap is formed between the end of the scattering blade and the inner wall of the shell.

6. The concrete steel fiber feeding device according to claim 2, characterized in that: The vibrating screen assembly includes a main frame, an exciter, a sieve plate and a guide plate. The sieve plate is horizontally installed on the main frame. The exciter is provided on both sides of the sieve plate. The exciter is used to drive the sieve plate to vibrate. The guide plate is connected to the main frame and is located below the sieve plate. The guide plate is used to guide the steel fibers that have been broken up once to move toward their own outlet direction.

7. The concrete steel fiber feeding device according to claim 6, characterized in that: The guide plate is arranged to be tilted downward so that the steel fiber can slide along the inclined surface of the guide plate.

8. The concrete steel fiber feeding device according to claim 7, characterized in that: A breaking space is formed between the turntable and the housing; The discharge direction of the guide plate outlet is perpendicular to the rotation direction of the breaking up component. The guide plate outlet is connected to the breaking up space, and the part close to the far end of the blade is located in the breaking up space, so that the blade breaks up the steel fibers through the part located in the breaking up space when rotating.

9. The concrete steel fiber feeding device according to claim 1, characterized in that: A bag breaking device is also provided in the storage hopper, and the bag breaking device is used to open the packaging bag containing the steel fiber.

10. The concrete steel fiber feeding device according to claim 9, characterized in that: The transmission weighing device includes a belt scale, which is arranged obliquely, and a part of the belt scale is located below the disperser.

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