Method and device for pumping particle bentonite

Abstract

The invention discloses a method and a device for pumping particle bentonite. The method comprises the following steps: (A) the particle bentonite is poured into a feeding tank; (B) a pumping valve isopened; a sucking valve is closed; and a piston rod moves up and down; (C) along with up-down movement of the piston rod, lubricating oil is extruded from lubricating oil boxes on the two sides of adischarge tank; (D) after the discharge tank is fully filled with the bentonite, the piston rod is downwards pressed; (E) a middle vibrator and a discharge port end vibrator are opened; and (F) the sucking valve is opened; and the pumping valve is closed. The feeding tank and the discharge tank are connected through a sucking pipe; the piston rod is embedded into a piston; the discharge tank is connected with a pumping discharge pipe; the pumping discharge pipe is connected with a single-section discharge pipe; the single-section discharge pipe is connected with a single-section discharge pipe; and the tail end of the single-section discharge pipe is connected with the end vibrator. The method is easy to realize and convenient to operate, and needs no heavy mechanical force for compaction.The device is simple in structure and convenient to use, can use an atmospheric pressure effect for uniformly and densely filling bentonite particles in grooves in underground diaphragm walls, and islow in cost and convenient to construct and operate.

Description

technical field [0001] The invention belongs to environmental geotechnical engineering, and more specifically relates to a method for pumping granular bentonite, and also relates to a device for pumping granular bentonite, which is suitable for the construction of anti-seepage layers in environmental geotechnical engineering. Background technique [0002] Pumping devices are widely used in construction machinery for pumping concrete, mud and other materials. But at present there is no device for pumping granular bentonite that can be operated easily and with low cost. Lubrication between pistons, granular bentonite can be filled densely, granular bentonite will not block the discharge pipe during pumping, and to ensure that the material can be pumped into some tortuous grooves, it is necessary to apply lubrication between the material cylinder and the material piston Oil, vibrators are installed in the middle and end of the discharge pipe, and the discharge pipe can be bent...

AI Technical Summary

Problems solved by technology

However, in this solution, springs and pistons need to be additionally arranged in the oil storage chamber, and lubricating oil needs to be regularly replenished in the oil storage chamber, so there are disadvantages of complex structure, high manufacturing cost and high maintenance cost

In the traditional pumping device, the material pumped into the groove is re-vibrated by the external vibrating rod. This method of vibration cannot ensure that the material is vibrated immediately after filling, resulting in uneven vibration of the material and Insufficient vibration at the corners of the groove, and the construction operation is cumbersome

The material is easy to form blockage in the pipeline during the pumping process. The traditional pumping device mainly uses pressure to relieve the blockage of the material in the pipeline. This method is not effective and requires high airtightness of the pipeline.

For the transportation of materials in some irregular grooves, the traditional method is to make the materials into mud and then spray them. This method has high requirements on the dry and wet state of the materials, and cannot directly transport the materials to the irregular grooves. In the groove, it is easy to cause the situation that the material filling is not dense

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