A filling system capable of automatically adjusting humidity

Abstract

The invention relates to a filling system capable of automatically adjusting the humidity, comprising a filter, a dryer, a feed bin, a rotary feeder, an injector, a fan, a filling pipe, a humidity sensor, a processor, and a control circuit. The discharge end of the filter is communicated with the upper end of the dryer through a blanking pipe. The dryer extends into the feed bin. The feed bin is communicated with the upper end of the rotary feeder. The rotary feeder extends into the filling pipe. The injector is arranged at one side of the filling pipe. The fan is arranged at a side, away from the filling pipe, of the injector, and the fan is communicated with the injector. The discharge port of the filling pipe is disposed at a side, away from the injection orifice of the injector, of the lower end of the rotary feeder. The humidity sensor is fixedly arranged on the inner wall of the blanking pipe. The humidity sensor and the processor are connected by a line. The processor and the signal end of the control circuit are connected by a line. The output power end of the control circuit and the dryer are connected by a line. The filling system of the invention can automatically adjust the humidity of tailings, tailings are not easy to condensate, and the transmission efficiency is high.

Description

technical field [0001] The invention relates to the technical field of mineral machinery, in particular to a filling system capable of automatically adjusting humidity. Background technique [0002] At present, in mining operations, the exploitation of underground resources continuously destroys the balance of the original underground material composition, groundwater flow field, and original rock stress field, and forms an underground goaf. When the mining operation process does not exceed the set control range, the operation process is safe; when the mining operation process is out of control and exceeds the set control range, such as roof fall, water inrush, surface subsidence, debris flow or Mine safety accidents such as surface water influx underground, large-scale ground pressure activities, etc. The occurrence of these safety accidents is closely related to the existence of gobs. If high-quality filling is carried out in the goaf during the mining operation, the abo...

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Problems solved by technology

[0003] At present, when the tailings of the ore dressing plant are used to fill the underground goaf, the hydraulic filling method is usually used to directly transport the tailings with a volume concentration of 20-60% to the filling area. The method is simple and efficient, but it will cause the following adverse effects: 1. Due to the small particle size of the tailings, it takes a long time for the tailings filled in the goaf to settle and dry up to withstand a certain pressure, and the subsequent ore needs to be mined under the condition that the filling area can withstand a certain pressure. Therefore, the subsequent mining of ore is hindered; 2. During the tailings filling process, a large number of small tailings flow into the underground water tank with the water flow, causing the underground water tank to silt up and destroy the underground drainage system of the mine.

3. The water in a large amount of tailings flows into the underground water tank with the tailings, which increases the underground drainage and consumes a lot of electricity

[0004] The above disadvantages can be avoided by using the dry filling method, but the current dry filling method generally uses mine trucks or other machinery to transport dry filling materials from the ground to fill the goaf, and compared with the hydraulic filling method, the transportation efficiency is low

[0005] The mine underground filling system in the prior art mainly has the following problems: the humidity of the tailings is high, and after dehydration, the tailings are easy to condense in the filling pipeline, and the transportation efficiency is not high; the discharge port of the filling pipeline is easy to accumulate filler, which affects the subsequent The filler is ejected, so it is necessary to solve this problem

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