10. Inclined tube settler
We have always been committed to the research and development and promotion of acid and environmental protection technologies. The developed zero-discharge wastewater technology, high-temperature cracking and recovery of refractory waste acid, high-arsenic ore treatment and arsenic recovery, and sulfur downstream product production technology have been widely used in the industry. The promotion and application of these technologies have enabled the project device to meet the strict national emission standards and also achieved the goal of energy saving and consumption reduction.
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Inclined tube precipitator is a high-efficiency combined precipitator designed according to the theory of shallow pool sedimentation; it is also collectively referred to as shallow pool sedimentation tank. Many dense inclined tubes or inclined plates are arranged in the settlement area, so that the suspended impurities in the water are precipitated in the inclined plate or inclined tube, the water flows upward along the inclined plate or inclined tube, and the separated sludge slides down to the bottom of the pool along the inclined tube under the action of gravity, and then is discharged centrally. This kind of pool can improve the precipitation efficiency50～60%, can increase processing capacity in the same area3～5Times. According to the test data of the original wastewater to design different flow rate of the inclined tube precipitator, the use of general to add coagulant. The inclined tube sedimentation and purified water method is to install the inclination angle above the sludge suspension layer.60The inclined tube is formed, and the suspended solids, solids or flocs formed after adding coagulant in the raw water accumulate into a thin mud layer on the surface area of the bottom side of the inclined tube, slide back to the mud suspension layer by gravity, and then sink into the mud collecting bucket. The sludge discharge pipe is discharged into the sludge tank for separate treatment or comprehensive utilization. The supernatant gradually rises to the water collecting pipe for discharge and can be directly discharged or recycled. The inclined tube settler is used.“principle of shallow pool sedimentation”A kind of liquid-solid separation equipment is designed. Compared with the horizontal sedimentation tank, the inclined tube settler has the characteristics of small footprint, large processing capacity and high precipitation efficiency, and its moderately advanced process and moderate price make it widely used in the purification and dilute acid treatment process of sulfuric acid plant.
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10. Inclined tube settler
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