Pump-Fed Hydrogel Chopper for Uniform SAP Particle Cutting
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Solution Overview
Problem
Conventional choppers for super absorbent polymer hydrogel result in non-uniform cutting due to uneven pressure distribution, leading to issues such as excessive or under-drying during the drying process, which affects the manufacturing quality of the super absorbent polymer.
Innovation Solution
A minute cutting apparatus using a pump with a barrel body, a pumping unit, a rotation shaft, cutter members, and a perforated plate to uniformly press and cut the hydrogel, ensuring consistent pressure distribution and uniform cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional chopper with horizontal moving direction is used, then the structure is simple, but the pressure distribution is uneven causing non-uniform cutting
Solution Approach 1:
The patent changes the static horizontal moving direction to a dynamic vertical pressing motion. The pump unit vertically presses the hydrogel particles against the perforated plate, creating uniform pressure distribution across the cutting area. This dynamic vertical motion ensures that particles at different positions receive equal pressure, solving the non-uniform cutting problem while maintaining structural simplicity.
Solution Approach 2:
The patent introduces a pump unit that uses pneumatic or hydraulic pressure to vertically press the hydrogel particles. The pump unit generates controlled pressure that is uniformly distributed across the particles, ensuring consistent cutting. This pneumatic/hydraulic approach replaces the simple mechanical horizontal motion with a pressure-based vertical pressing mechanism, achieving uniform cutting without significantly increasing device complexity.
2Ease of operation
If pressure is applied to move hydrogel particles horizontally, then particles can be transported, but pressure distribution becomes non-uniform at different positions
Solution Approach 1:
The patent transitions from horizontal particle transport to vertical pressing motion. The pump unit applies vertical pressure to the hydrogel particles, causing them to move vertically and be pressed against the perforated plate. This vertical dynamic motion ensures uniform pressure distribution across all particles, eliminating the pressure variation problem that occurs with horizontal transport.
Solution Approach 2:
The patent changes the direction of particle movement from horizontal to vertical dimension. By applying pressure in the vertical dimension rather than horizontal, the system achieves uniform pressure distribution. The vertical pressing motion allows pressure to be applied uniformly across the entire cross-section of particles, solving the non-uniform pressure problem inherent in horizontal transport systems.
3Device complexity
If hydrogel particles are not uniformly pressed, then the cutting process is simple, but drying becomes non-uniform causing quality issues
Solution Approach 1:
The patent introduces a dynamic vertical pressing mechanism using the pump unit. This dynamic pressing action ensures that hydrogel particles are uniformly compressed against the perforated plate before cutting. The uniform pressure distribution achieved through vertical pressing prevents non-uniform drying during the subsequent drying process, improving product quality while adding minimal complexity to the pressing mechanism.
Solution Approach 2:
The pump unit uses pneumatic or hydraulic pressure to uniformly press the hydrogel particles. This pressure-based mechanism ensures consistent compression across all particles, which is critical for uniform drying. The pneumatic/hydraulic system provides controlled, uniform pressure that prevents the quality issues associated with non-uniform pressing, while maintaining relatively simple device structure.
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
The apparatus ensures uniform cutting of hydrogel particles, improving the manufacturing quality of super absorbent polymer by preventing non-uniform drying and enhancing the preparation process.
Implementation Method 1
a pumping unit installed in the barrel body to supply a pressing force to the transfer space
Implementation Method 2
a cutter member installed on the rotation shaft to pulverize the hydrogel transferred by the pressing force in the transfer space
Data Source
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AI summary
A minute cutting apparatus for a superabsorbent polymer hydrogel using a pump is disclosed. An embodiment of the present invention provides the minute cutting apparatus, including: a barrel body in which a transfer space through which the hydrogel is transferred is formed; a pumping unit installed in the barrel body to supply a pressing force to the transfer space, a rotation shaft rotatably installed in the transfer space of the barrel body; a driving motor configured to provide a rotational driving force to rotation shaft; a cutter member installed on the rotation shaft to pulverize the hydrogel transferred by the pressing force in the transfer space; and a perforated plate installed in the barrel body to discharge the hydrogel pulverized by the cutter member to an outside of the barrel body.