Fiber Pre-dispersing Device with Dual-Stage Mechanical Mixing
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Solution Overview
Problem
Manual pre-dispersion of fibers in concrete results in poor dispersion effects, limiting the performance and application of fiber-reinforced concrete due to inadequate distribution and stress transmission.
Innovation Solution
A fiber pre-dispersing device comprising a dispersing chamber with a first and second dispersing device, featuring dispersing rods, gears, and oil cylinders, which improves fiber dispersion by adjusting rotation speed and fineness through motor-driven mechanisms and structural design elements like T-shaped push plates and grinding cylinders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual pre-dispersion method is used, then operation simplicity is maintained, but fiber dispersion effect deteriorates
Solution Approach 1:
The patent replaces manual mechanical dispersion with a motor-driven mechanical dispersing system. The dispersing device includes a rotating main shaft with dispersing rods, connecting frames, and rollers that mechanically break up fiber clumps through controlled motion, substituting human manual operation with an automated mechanical system that provides consistent and effective dispersion.
Solution Approach 2:
The dispersing device is segmented into multiple functional components: dispersing rods for initial separation, connecting frames with rollers for further breakdown, and a T-shaped push plate for final distribution. This segmentation allows each component to perform a specific dispersion function, progressively improving the overall dispersion effect while maintaining operational simplicity through integrated automation.
2Device complexity
If fiber is not pre-dispersed, then process complexity is reduced, but concrete performance deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-dispersing fibers in a dedicated dispersing chamber before the concrete mixing process. The dispersing device pre-separates fiber clumps using rotating rods and rollers, ensuring fibers are individually distributed before entering the main concrete mixture. This preliminary dispersion action prevents subsequent mixing issues and ensures optimal fiber reinforcement performance in the final concrete product.
3Strength
If uniform fiber distribution is achieved, then concrete toughness is improved, but dispersion process complexity increases
Solution Approach 1:
The patent merges multiple dispersion functions into a single integrated dispersing device. The main shaft rotates to drive dispersing rods, while connecting frames with rollers work simultaneously to break up fiber clumps. The T-shaped push plate combines pushing and spreading actions in one component. This merging of functions achieves uniform fiber distribution for improved toughness while containing the complexity within a single cohesive device rather than multiple separate systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances fiber dispersion, leading to improved flexural strength and toughness of concrete by ensuring uniform distribution and effective stress transmission, thereby overcoming the limitations of manual dispersion methods.
Implementation Method 1
a first motor is connected to one side of the main shaft, and the first motor is installed at one side of the dispersing chamber, the main shaft is connected with four dispersing rods
Implementation Method 2
a second motor is installed on both sides of the sliding plates, and the power output end of a second motor is connected with the rotating rod, the rotating rods on both sides are connected with a grinding cylinder
Implementation Method 3
oil cylinders are installed at both sides of the discharging box, the power output end of the oil cylinders is connected with a T-shaped push plate, and two sides of the T-shaped push plate are connected with slide plates
Implementation Method 4
the surface of the roller is connected with a plurality of dispersing gears, the surface of the grinding cylinder is connected with a plurality of grinding gears
Data Source
AI summary
A fiber pre-dispersing device for fiber reinforced concrete, comprising: a dispersing chamber, a feed inlet is installed on the upper side of a dispersing chamber, a hopper is installed in the feed inlet, a first dispersing device is installed in the dispersing chamber, a discharge outlet is installed at the bottom of the dispersing chamber, and connected with a second dispersing device, grooves are arranged at both sides of dispersing chamber, supporting legs are installed in the grooves. According to the invention, the device has a first dispersing device and a second dispersing device, and the dispersing blocks in the first dispersing device cooperates with the dispersing gears of the roller to preliminarily disperse and stir the fiber raw materials, a second dispersing device; dispersing the preliminary dispersed fiber raw materials, in order to control the fineness of pre-dispersed fiber raw materials, oil cylinders arranged on both sides can push their respective grinding cylinders to adjust the dispersion, thus improving both fiber dispersion effect and using the effect in concrete works.