A steel fiber intelligent metering and conveying system for concrete

Abstract

This utility model relates to the field of concrete mixing and conveying technology, specifically to an intelligent metering and conveying system for steel fiber concrete. It includes a feeding section, a storage hopper, a belt conveyor, and a weighing section. The output end of the feeding section connects to the top inlet of the storage hopper, the bottom outlet of the storage hopper connects to the input end of the belt conveyor, and the output end of the belt conveyor connects to the top inlet of the weighing system. The feeding section includes a feeding platform and a lifting device. The feeding platform is equipped with a ladder and guardrails. The lifting device is slidably mounted on a track. The storage hopper is equipped with a blade assembly and an adjusting gate. The blade assembly is fixedly installed at the top inlet of the storage hopper, and the adjusting gate is movably installed at the bottom outlet of the storage hopper. The belt conveyor is equipped with a frame and a herringbone conveyor belt. This intelligent metering and conveying system for steel fiber concrete achieves the following: the steel fiber feeding accuracy is controlled within ≤±1%, effectively solving the problem of steel fiber clumping and reducing the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixing and conveying technology, specifically to a steel fiber intelligent metering and conveying system for concrete. Background Technology

[0002] To improve concrete performance, randomly distributed short steel fibers are incorporated into ordinary concrete according to specific mix proportions. These randomly distributed steel fibers effectively inhibit the propagation of microcracks within the concrete and the formation of macrocracks, significantly improving the tensile, flexural, impact, and fatigue properties of the concrete, while also exhibiting good ductility. Compared to ordinary concrete, the main difference in steel fiber reinforced concrete lies in its significantly improved tensile strength, flexural strength, and impact resistance. Furthermore, the durability of steel fiber reinforced concrete is greatly enhanced, particularly in terms of crack resistance, fatigue resistance, and seismic resistance.

[0003] However, when preparing steel fibers in large quantities, it is necessary to prepare the steel fibers in batches. Each preparation requires manual quantitative addition of steel fibers, which is labor-intensive, has a measurement error of >10%, and the steel fibers are prone to clumping, which will also affect the dispersion effect of the steel fibers.

[0004] Therefore, there is an urgent need to design an intelligent metering and conveying system for steel fibers used in concrete to solve the problems of high labor intensity, large errors, and easy clumping of steel fibers in existing technologies. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an intelligent metering and conveying system for steel fiber concrete.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a steel fiber intelligent metering and conveying system for concrete, including a feeding section, a storage hopper, a belt conveyor and a weighing section. The output end of the feeding section is connected to the top inlet of the storage hopper, the bottom outlet of the storage hopper is connected to the input end of the belt conveyor, and the output end of the belt conveyor is connected to the top inlet of the weighing section.

[0007] Specifically, the loading section includes a loading platform and a lifting device. The loading platform is equipped with a ladder and guardrails, and the lifting device is slidably installed on a track.

[0008] Specifically, the storage hopper is equipped with a blade assembly and an adjusting door. The blade assembly is fixedly installed at the top inlet of the storage hopper, and the adjusting door is movably installed at the bottom outlet of the storage hopper.

[0009] Specifically, the belt conveyor is equipped with a frame, a herringbone conveyor belt, a drive motor, a redirecting roller, and a sealing cover. The redirecting roller is installed at both ends of the frame, the herringbone conveyor belt is fitted onto the redirecting roller, the drive motor is connected to and drives the redirecting roller on one side, and the sealing cover covers the frame and the herringbone conveyor belt.

[0010] Specifically, the weighing section includes a steel fiber scale, a support frame, a weighing sensor, and a vibrating screen. The upper part of the steel fiber scale is a conical cavity, and the lower part of the steel fiber scale is a rectangular cavity. The conical cavity and the rectangular cavity are connected. The outer peripheral support block of the steel fiber scale is connected to the support frame through the weighing sensor. The vibrating screen is installed at the bottom outlet of the weighing section.

[0011] Specifically, the vibrating screen is connected to the steel fiber scale via a spring assembly, and the vibrating screen is inclined at the bottom of the steel fiber scale in the weighing section.

[0012] This utility model has the following beneficial effects:

[0013] The intelligent metering and conveying system for steel fibers used in concrete designed in this utility model controls the feeding accuracy of steel fibers to ≤±1%. Through the vibrating screen system, it can effectively solve the problem of steel fiber clumping. This intelligent metering and conveying system for steel fibers can significantly reduce the labor intensity of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a steel fiber intelligent metering and conveying system for concrete.

[0015] Figure 2 This is a front view of the feeding section of the intelligent metering and conveying system for steel fiber reinforced concrete.

[0016] Figure 3 This is a left view of the feeding section of the intelligent metering and conveying system for steel fiber reinforced concrete.

[0017] Figure 4 This is the front view of the storage hopper of the steel fiber intelligent metering and conveying system for concrete.

[0018] Figure 5 This is a left view of the storage hopper of a steel fiber intelligent metering and conveying system for concrete.

[0019] Figure 6 yes Figure 5 A view from direction A.

[0020] Figure 7 This is a schematic diagram of the belt conveyor of the intelligent metering and conveying system for concrete using steel fiber reinforced concrete.

[0021] Figure 8 yes Figure 7 View from the AA direction.

[0022] Figure 9 This is a front view of the weighing section of the intelligent metering and conveying system for steel fiber reinforced concrete.

[0023] Figure 10 This is a left view of the weighing section of the intelligent metering and conveying system for steel fiber reinforced concrete.

[0024] In the diagram: 1-Feeding section, 1.1-Feeding platform, 1.2-Lifting device, 1.3-Rail; 2-Storage hopper, 2.1-Blade assembly, 2.2-Adjusting gate; 3-Belt conveyor, 3.1-Frame, 3.2-Herringbone conveyor belt, 3.3-Drive motor, 3.4-Redirecting roller, 3.5-Sealing cover, 3.6-Guide chute; 4-Weighing section, 4.1-Steel fiber scale, 4.2-Support, 4.3-Vibrating screen. Detailed Implementation

[0025] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1-10 As shown, a steel fiber intelligent metering and conveying system for concrete includes a feeding section 1, a storage hopper 2, a belt conveyor 3, and a weighing section 4. The output end of the feeding section 1 is connected to the top inlet of the storage hopper 2, the bottom outlet of the storage hopper 2 is connected to the input end of the belt conveyor 3, and the output end of the belt conveyor 3 is connected to the top inlet of the weighing section 4.

[0027] The feeding section 1 includes a feeding platform 1.1 and a lifting device 1.2. The feeding platform 1.1 consists of a ladder, a platform, and a guardrail. The feeding platform 1.1 is used by workers to operate the lifting device 1.2 to lift the bagged steel fibers to the top of the storage hopper 2. The lifting device 1.2 consists of an electric hoist and a remote control. The upper part of the lifting device 1.2 is equipped with a bracket 4.2 and a track 1.3. The bracket 4.2 and the track 1.3 are used to install the lifting device 1.2. Workers can operate the remote control on the feeding platform 1.1 to control the lifting device 1.2 to lift the bagged steel fibers.

[0028] The storage hopper 2 is equipped with a blade assembly 2.1 and an adjusting gate 2.2. The bagged steel fibers are lifted to the top of the storage hopper 2 by the feeding device. The bagged steel fibers are broken by the blade assembly 2.1. The broken steel fibers are temporarily stored in the storage hopper 2. The adjusting gate 2.2 is controlled by cylinders on both sides to open and close the gate. The adjusting gate 2.2 is used to control the discharge amount of steel fibers.

[0029] The belt conveyor 3 consists of a frame 3.1, a herringbone conveyor belt 3.2, a drive motor 3.3, a guide chute 3.6, a redirecting roller 3.4, and a sealing cover 3.5. The belt conveyor 3 is used to transport steel fibers from the storage hopper 2 to the steel fiber weighing section 4 for temporary storage. The steel fiber conveyor belt 3.2 is a herringbone conveyor belt 3.2, which is used to prevent the steel fibers from slipping. The steel fibers on the herringbone conveyor belt 3.2 are transported to the guide chute 3.6, which is located in the weighing section. Above 4, the belt conveyor 3 uses a variable frequency motor. The belt conveyor 3 can automatically start and stop according to the amount of material stored in the weighing section 4. It can also calculate the feeding speed of the belt conveyor 3 according to production needs. The calculation formula is V=K×(Wt / p×L), where V=the rotation speed of the belt conveyor 3, K=the correction coefficient (generally taken as 1.5), Wt=the target feeding amount, p=the fiber density, and L=the effective length of the belt conveyor 3. The belt conveyor 3 adopts a sealed cover 3.5 structure throughout the entire process. The sealed cover 3.5 can effectively prevent the steel fibers from scattering.

[0030] The weighing section 4 includes a steel fiber scale 4.1, a support 4.2, a load cell, and a vibrating screen 4.3. The steel fiber scale 4.1 consists of a rectangular cavity and a conical cavity, with the conical cavity positioned above the rectangular cavity. The flared design of the conical cavity prevents steel fibers from spilling during feeding from the steel fiber conveyor belt. The steel fiber scale 4.1 is connected to the support 4.2 via a load cell. This weighing scale is a subtraction scale and can achieve dual weighing modes: dynamic weighing mode and static weighing mode. When the belt conveyor 3 feeds material, it operates in static weighing mode, and when the weighing scale unloads material, it operates in dynamic weighing mode. The vibrating screen 4.3 is connected to the steel fiber scale 4.1 via a spring assembly. The vibrating screen 4.3 is used to effectively solve the problem of steel fiber clumping.

[0031] Working principle of a steel fiber intelligent metering and conveying system for concrete:

[0032] The intelligent metering and conveying system for steel fibers includes a feeding section 1, a storage hopper 2, a belt conveyor 3, and a weighing section 4;

[0033] 1. The feeding section 1 includes:

[0034] (1) Loading platform 1.1: It consists of a ladder, platform and guardrail, and is used by workers to operate the lifting device 1.2 to lift the bagged steel fiber to the top of the storage hopper 2;

[0035] (2) Main structure: It consists of a support frame 4.2 and a track 1.3, which are used to install the lifting device 1.2;

[0036] (3) Lifting device 1.2; consisting of an electric hoist and a remote control.

[0037] 2. Storage hopper 2: Composed of storage hopper 2, blade assembly 2.1, and regulating gate 2.2. The bagged steel fibers are lifted to the top of storage hopper 2 by the feeding device. The bagged steel fibers are broken by the blade assembly 2.1. The broken steel fibers are temporarily stored in storage hopper 2. The storage amount of steel fibers is controlled by regulating gate 2.2.

[0038] 3. Belt conveyor 3: Composed of frame 3.1, herringbone conveyor belt 3.2, drive unit, redirecting roller 3.4, and guide chute 3.6, used to transport steel fibers in storage hopper 2 to steel fiber weighing scale for temporary storage and weighing;

[0039] a. The steel fiber conveyor belt adopts a herringbone loop conveyor belt to prevent the steel fibers from slipping.

[0040] b. The steel fiber conveyor belt uses a variable frequency motor, which can automatically start and stop according to the amount of material stored in the steel fiber weigher. The feeding speed of the belt conveyor can be calculated according to production needs.

[0041] V = K × (Wt / p × L)

[0042] V = conveyor belt speed, K = correction factor (usually taken as 1.5), Wt = target feed rate, p = fiber density.

[0043] L = Effective belt conveyor length 3

[0044] c. The steel fiber conveyor belt adopts a 3.5 sealed cover structure throughout, which can effectively prevent the steel fibers from scattering.

[0045] 4. Weighing section 4: Its structure includes a steel fiber scale 4.1, a support frame 4.2, and a vibrating screen 4.3;

[0046] (1) The steel fiber scale 4.1 consists of a rectangular cavity and a conical cavity. The conical cavity is located above the rectangular cavity. The flared design prevents the steel fiber from spilling when the steel fiber conveyor belt is feeding materials.

[0047] (2) The steel fiber scale 4.1 and the bracket 4.2 are connected by a weighing sensor. This weighing is called a subtraction scale. It can realize dual weighing modes: dynamic weighing mode and static weighing mode. When the belt conveyor 3 feeds materials, it is in static weighing mode, and when the weighing scale unloads materials, it is in dynamic weighing mode.

[0048] (3) The vibrating screen 4.3 is connected to the scale body through a spring assembly. The vibrating screen 4.3 includes a conveyor box, a conveyor vibrator and a screen.

[0049] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0050] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel fiber intelligent metering delivery system for concrete, characterized by, It includes a feeding section, a storage hopper, a belt conveyor, and a weighing section. The output end of the feeding section is connected to the top inlet of the storage hopper, the bottom outlet of the storage hopper is connected to the input end of the belt conveyor, and the output end of the belt conveyor is connected to the top inlet of the weighing section.

2. The steel fiber intelligent metering and conveying system for concrete according to claim 1, characterized in that, The loading section includes a loading platform and a lifting device. The loading platform is equipped with a ladder and guardrails, and the lifting device is slidably installed on a track.

3. The steel fiber intelligent metering delivery system for concrete of claim 1, wherein, The storage hopper is equipped with a blade assembly and an adjustment gate. The blade assembly is fixedly installed at the top inlet of the storage hopper, and the adjustment gate is movably installed at the bottom outlet of the storage hopper.

4. The steel fiber intelligent metering delivery system for concrete of claim 1, wherein, The belt conveyor is equipped with a frame, a herringbone conveyor belt, a drive motor, a redirecting roller, and a sealing cover. The redirecting roller is installed at both ends of the frame, the herringbone conveyor belt is fitted onto the redirecting roller, the drive motor is connected to the redirecting roller, and the drive motor is connected to and drives the redirecting roller on one side. The sealing cover covers the frame and the herringbone conveyor belt.

5. The intelligent metering and conveying system for steel fiber reinforced concrete according to claim 1, characterized in that, The weighing section includes a steel fiber scale, a support frame, a load cell, and a vibrating screen. The upper part of the steel fiber scale is a conical cavity, and the lower part is a rectangular cavity. The conical cavity and the rectangular cavity are connected. The outer peripheral support block of the steel fiber scale is connected to the support frame through the load cell. The vibrating screen is installed at the bottom outlet of the weighing section.

6. The steel fiber intelligent metering and conveying system for concrete according to claim 5, characterized in that, The vibrating screen is connected to the steel fiber scale via a spring assembly, and the vibrating screen is inclined at the bottom of the steel fiber scale in the weighing section.

Images