Sludge double-sleeve continuous sampling device and method thereof

Abstract

The invention provides a sludge double-sleeve continuous sampling device. The sludge double-sleeve continuous sampling device comprises a sleeve head, an outer sleeve, an inner sleeve, a taper bit and a check pipe, and is characterized in that the sleeve head is in threaded connection with the outer sleeve, the lower part of the outer sleeve is in threaded connection with the taper bit, the inner sleeve is mounted in the outer sleeve, and the lower part of the inner sleeve is in threaded connection with the check pipe. Compared with the prior art, the sludge double-sleeve continuous sampling device used for sampling sludge has the following advantages and beneficial effects that the device is simple to assemble and convenient to carry, is capable of quickly, conveniently and accurately taking samples of different depths from sludge stack bodies without the requirement of to digging out sampling sections, directly stores the collected sludge in the inner sleeve and keeps the collected sludge in the shapes of intact columns, so as to maximally avoid cross contamination existing in the process of sample collection and storage.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a sludge double-pipe continuous sampling device and a method thereof. Background technique [0002] With the rapid development of urban sewage treatment in my country, the number of sewage treatment plants is increasing, and the amount of sludge produced in the process of sewage treatment is also increasing. According to statistics, the annual sludge production of urban sewage treatment plants in my country has reached about 50 million tons. After dehydration, composting, drying, etc., the sludge can be disposed of as a resource through land utilization and building material utilization. Sludge is enriched with a large amount of organic matter, heavy metals and other pollutants from sewage. Sludge must be sampled and tested before disposal to avoid secondary pollution. [0003] After the sludge has been treated by dehydration, composting, drying, etc., it is usua...

AI Technical Summary

Problems solved by technology

Sampling shovel is a commonly used solid / semi-solid sample collection equipment, but when collecting sludge samples from different locations, it is usually necessary to dig up the sludge pile to expose the sampling section, which leads to heavy sampling workload, harsh operating conditions, and easy to cause odor Diffusion produces secondary pollution

[0004] Li Yan and others invented a sludge extraction and sampling device (CN201520973842.5), Jiang Songyan and others invented a sludge sampler (CN201320687905.1), Zhang Xinxi and others invented a biological sludge sampler (CN201620083202.1), It is proposed to use methods such as extraction and grabbing to sample sludge, but it is aimed at sludge below the water surface, such as river bottom sludge and biological reaction tank sludge, and it is impossible to accurately sample sludge at different depths

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