HomePharmaceutical Vacuum Preloading
Release time：Jul 24,2023
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The chemical vacuum preloading method is a combination of chemical pretreatment technology and vacuum preloading technology for mud stabilization. Its core technology is the action of the chemical and its mechanism of action; According to the performance and final treatment effect and purpose of the mud, corresponding agents can be added, which can be organic agents, inorganic agents, or mixed agents. Medications mainly play two roles; On the one hand, it causes small particles in the mud to aggregate into large particles, forming a skeleton structure between the particles, which can greatly reduce the mud blockage effect; On the other hand, inorganic agents can reduce the thickness of the clay hydration membrane, allowing it to release some weakly bound water, greatly reducing the resistance of free water movement, and thereby improving the permeability of the mud. The two functions of the agent play a crucial role in improving the efficiency and effectiveness of vacuum preloading drainage in the future.
The reagent vacuum preloading method includes the following steps:
Step 1: Take engineering waste slurry samples on site;
Step 2: Determine the chemical agents and dissolved gases based on the analysis results in Step 1;
Step three, design a waste slurry sedimentation tank, etc;
Step 4: Pump the waste slurry into the sedimentation tank to a certain height through a pumping pipe;
Step 5: Inject chemicals and other chemicals into the sedimentation tank through a pumping pipe in sequence;
Step 6: Inject the dissolved gas into the waste slurry through the gas dispensing device and gas injection pipe;
Step 7: Soak the waste slurry mixture after adding chemical agents;
Step 8, arrange the horizontal and vertical drainage pipes in the separation pool;
Step 9, pump the sediment to the solid-liquid separation tank that has been arranged with a vacuum network drainage system;
Step 10: Perform vacuum loading after completing the layout;
Step 11, stop vacuum loading;
Step 12: After completion, dismantle the vacuum network drainage system to achieve a more thorough solid-liquid separation.
