Double-Sealing Collector for Spray Freeze Ice Ball Transfer
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Solution Overview
Problem
Conventional spray freeze drying technologies face challenges in achieving continuous operation for large and medium-sized devices due to moisture ingress, ice ball bonding, and melting during transfer from a freezing chamber to a vacuum freeze drying device.
Innovation Solution
A double-sealing type apparatus with a collector, trolley, vacuum pumping device, heating device, and sealing pads, along with a method involving ice sealing and vacuum pumping to prevent moisture ingress and ensure smooth transfer of ice balls, utilizing a cone-shaped collector and detachable components for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ice balls are transferred from freezing chamber to vacuum freeze drying device, then continuous operation is achieved, but moisture enters freezing chamber causing freezing on inner wall
Solution Approach 1:
The collector is nested within the freezing chamber environment, with the freezing chamber's cold atmosphere extending into the collector space. This nesting allows the collector to be positioned within the cold zone without requiring a separate sealed enclosure, enabling continuous operation while preventing moisture ingress to the freezing chamber walls.
Solution Approach 2:
The discharging port serves as an intermediary interface between the freezing chamber and the external environment. By controlling the opening and closing of this port, the system allows ice ball discharge while preventing moisture from entering the freezing chamber, thus enabling continuous operation without compromising the freezing chamber's integrity.
2Productivity
If ice balls are transferred from freezing chamber, then continuous operation is achieved, but moisture accumulates on ice ball surface causing bonding
Solution Approach 1:
The collector is nested within the freezing chamber's cold atmosphere, allowing ice balls to be collected and transferred without exposure to warm, humid external air. This nesting prevents moisture accumulation on ice ball surfaces, maintaining their separation and preventing bonding during the transfer process.
3Productivity
If ice balls are transferred from freezing chamber, then continuous operation is achieved, but ice balls melt
Solution Approach 1:
The collector is nested within the freezing chamber's cold environment, maintaining low temperatures throughout the collection and transfer process. This nested configuration allows continuous operation without exposing ice balls to warmer external temperatures, preventing melting.
Solution Approach 2:
The collector is pre-cooled by the freezing chamber's cold atmosphere before ice ball transfer begins. This preliminary cooling ensures that the collector surface is at the appropriate temperature to receive and maintain ice balls without causing melting during the transfer operation.
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 achieves effective sealing and prevents ice ball bonding and melting, enabling smooth transfer and continuous operation by maintaining a vacuum and controlled temperature, enhancing the reliability of the spray freeze drying process.
Implementation Method 1
the vacuum pumping device is in communication with an internal space of the collector
Implementation Method 2
the heating device and the first sealing pad are arranged at the collecting port, sealing between the collecting port and the discharging port is formed by the first sealing pad in the case that the collecting port is aligned with the discharging port
Data Source
AI summary
A double-sealing type apparatus for collecting spray freeze ice ball particles and a collecting method for the double-sealing type apparatus are provided. The double-sealing type apparatus includes a collector, a collecting trolley, a vacuum pumping device, a heating device, a first sealing pad and a second sealing pad. The collector is arranged on the collecting trolley, and is provided with a collecting port. The collecting port corresponds to a discharging port at the bottom of a freezing tower. A water inlet is further provided at the collecting port, and the water inlet is in communication with a space formed by the aligning of the collecting port and the discharging port. Good sealing performance is achieved in a double-sealing manner including the sealing pads and the ice sealing, so as to smoothly transfer ice balls in the freezing tower.