Solid waste treatment method with hazardous waste pretreatment process

Abstract

The invention relates to a solid waste treatment method with a hazardous waste pretreatment process. By controlling the feeding order, feeding amount and feeding speed of the batching tank, the accurate dosage is ensured, and various additives and cement are prevented from accumulating at the entrance of the agitator. Reduce the impact on the metering device and cause inaccurate metering, and the second transfer device uses a transfer pipe to provide a buffer space to ensure that the final mixture itself reacts and cools completely, avoiding the impact on the transport vehicle.

Description

technical field [0001] The invention relates to a solid waste treatment method, in particular to a solid waste treatment method with a hazardous waste pretreatment process. Background technique [0002] Solidification technology refers to the process of adding a solidifying agent to the waste to transform it into an immobile solid or form a compact solid. The solidified product is a compact solid with a complete structure. This solid can be transported in a convenient size without the need for any secondary containers. In the prior art, different waste solidification methods have been formed for different wastes. The more common ones are cement solidification, lime solidification, plastic material solidification, melt solidification, and self-cement solidification. [0003] However, the wastes that need to be solidified contain heavy metal hazardous wastes. In addition to the measures of cement solidification, suitable additives need to be added to these hazardous wastes to...

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Problems solved by technology

[0003] However, the waste that needs to be solidified contains heavy metal hazardous waste. In addition to the measures of cement solidification, it is necessary to add suitable additives to this type of hazardous waste to stabilize its performance; in the prior art, it is usually Metering devices and electric control, pneumatic or hydraulic actuators are used to control the amount of cement and additives, but this design is likely to cause the defect that, in order to ensure the accuracy of the amount, the actuators do not control the flow rate of additives while performing work frequently. And the sequence is controlled, so it is easy to cause various additives and cement to accumulate at the entrance of the mixer, which seriously affects the subsequent cement and additives and other ingredients entering the mixer, and even causes the ingredients to overflow and cause waste, endangering equipment, instruments and surrounding operations. Personal safety of personnel; on the other hand, when the mixing is completed, the final mixture is often poured directly through the outlet of the mixer to the delivery vehicle. Due to the lack of buffer space, not only the final mixture itself has not reacted and cooled completely, but also is easy to transport The car makes an impact, causing an imbalance or even a rollover of the vehicle

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