Air-drying drying equipment with blowing function

Abstract

The invention provides an air ventilation type drying device with the cleaning and blowing function. The air ventilation type drying device comprises a cavity and a heating assembly. The cavity comprises an experiment cavity body and a discharging cavity body, wherein the experiment cavity body is located above the discharging cavity body, the heating assembly is communicated with the experiment cavity body or the discharging cavity body, and the cavity is internally provided with a sieve tray assembly used for containing materials. The air ventilation type drying device further comprises a top face cleaning and blowing mechanism used for carrying out cleaning and blowing on the sieve tray assembly. The top face cleaning and blowing mechanism comprises a top face ventilation pipe stretching into the experiment cavity body, the end, stretching out of the experiment cavity body, of the top face ventilation pipe is connected with a high-pressure gas source, and the other end is close to the sieve tray assembly so that the fed high-pressure gas can be used for carrying out cleaning and blowing on the sieve tray assembly. The air ventilation type drying device is simple in structure, convenient to operate and low in energy consumption and has the automatic blowing and cleaning function. The interior of equipment is clean, samples of next batches cannot be affected, the moisture reducing efficiency is high, the sample precision is high, the using situation of sieve trays can be automatically monitored, a worker can be reminded to clean or replace the sieve trays, and the working safety is improved.

Description

technical field [0001] The invention mainly relates to the field of coal sample preparation equipment, in particular to an air-drying drying equipment with a cleaning function. Background technique [0002] For coal quality analysis, it is actually a process of sampling analysis. Coal is an inhomogeneous substance (particle size, distribution of quality characteristics, etc.), and the sampled parent stock is generally relatively large (ranging from tens of tons to tens of thousands of tons), and the samples that can represent the quality and characteristics of the entire stock sample are drawn to the maximum extent. The process of sampling representative samples is called "sampling". At present, there are many methods such as mechanical sampling, manual sampling, and semi-mechanical sampling. Each country has mandatory standards, and sampling work must be carried out in accordance with the standards. [0003] After the sample is collected according to the standard, the nex...

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Problems solved by technology

[0008] 1) The degree of automation is not high, and the equipment does not have the functions of purging and cleaning. Manual operation is required for each cleaning, and the labor intensity of the operator is high

[0009] 2) If it is not cleaned manually in time, firstly, the clogging of the sieve tray will affect the drying and dehumidification work of the next batch, resulting in a decrease in efficiency and high energy consumption of the equipment; Coal samples are polluted, which makes the quality of coal samples not high and the accuracy is not enough

[0010] 3) The use of the sieve plate cannot be automatically monitored. If it is not manually cleaned or replaced in time, the sieve plate may be blocked, which will affect the service life of the equipment and even cause safety accidents

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