Method and device for continuous and uniform metering and feeding of viscoplastic sludge

Abstract

The invention discloses a method and device for continuous and uniform metering feeding of viscoplastic sludge. The method comprises the following steps that sludge are dumped into a lower sludge bucket and enters a sludge storage bucket through a grid; before the sludge is taken, an anti-sticking device lays powder curing materials on a sludge taking plate of a chain plate machine; after a one-piece sludge is scraped through the sludge taking plate, the one-piece sludge is conveyed to the outlet of the sludge storage bucket and is cut and dispersed into mall sludge pieces by a cutting device; when the cut and dispersed small sludge pieces are conveyed out of the outlet of the sludge storage bucket by the chain plate machine, another anti-sticking device meters and sprays the curing materials so as to fully lay the curing materials on the surface and surrounding of the sludge and a belt machine; the small sludge pieces fall on the belt machine and are conveyed into a sludge mixing device for mixing through the belt machine. The method and the device carry out continuous and uniform blanking, metering feeding and continuous conveying on viscoplastic sludge, and the sludge does not spring and does not stick a feeding device in the feeding process. Meanwhile, the supplied sludge does not stick the mixing device, so that the mixing is more uniform, and the mixing efficiency is increased.

Description

technical field [0001] The invention relates to a feeding method and device for continuous and uniform metering of viscoplastic sludge. Specifically, it is a method for uniformly feeding viscoplastic sludge, metering and retrieving, and continuous conveying without stickiness during the feeding process. The method and device of the feeding device, at the same time, the supplied sludge is not sticky to the mixing equipment and is easier to mix evenly. Background technique [0002] A large amount of silt will be excavated in the coastal city rail transit project. These silts are marine, flushing lake clay, silty clay, silt, silty clay, silty clay with silty sand, in the state of flow plastic or soft plastic , and has the characteristics of high water content, high clay content, high organic matter content, and high compressibility. The existing mixing methods for modified and solidified sludge include manual laying combined with excavator mixing, and concrete mixer (intermitte...

AI Technical Summary

Problems solved by technology

However, in order to achieve this goal, there are still many technical problems in the process of mixing and mixing equipment, including: ①The sludge cannot be uniformly discharged, continuously conveyed, and accurately measured, resulting in low production capacity and poor quality of the mixture ; ②The problem of mixing the mixture evenly with high production capacity and high efficiency: After adding the solidification modifier, the sludge will still be very viscous and difficult to mix evenly; mix with the existing batch mixer or continuous mixer , only by reducing the volume ratio and greatly prolonging the mixing time can the mixing be uniform, resulting in low production capacity and unable to meet the engineering needs, and at the same time, it is not economical due to the high cost

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