Tornado blowing method and cyclone device thereof

Abstract

The invention discloses a tornado blowing method and a cyclone device thereof. Tornado disturbance flow is ejected by the cyclone device to perform blowing intervention on stacked materials. According to the characteristic and principle that the attack of tornado is sudden, the tornado has violent destructive power, and generated wind can release huge energy in a concentrating way in a small area, in a local spacial range, such as an enclosed bulk tank cylinder and other containers, a dust material agitating mode capable of releasing huge energy in the concentrating way in short time is adopted, the gas consumption can be reduced and the initial natural stacking state of the dust material can be efficiently intervened by means of the violent destructive powder, so the method is a simple, convenient and high-efficiency dust removing method. Compared with modes of mechanically rotating vanes or guide plates, which have the disadvantages of high wear rate and high explosion risk factor, the method is more similar to the tornado forming environment, reliable and safe.

Description

technical field [0001] The invention relates to a purging method, in particular to an external intervention purging method and its device for loosening, stirring, mixing or removing materials. Background technique [0002] In material conveying and storage containers, dusty materials have the characteristics of poor fluidity, easy adhesion, and easy hardening. Therefore, the dusty materials in the container cannot detect their true material level outside, and external interference is required to actively change the dust. Accurately detect the height of the ash level and dredge the ash delivery. [0003] In the existing technology, the initial natural stacking state is actively intervened in the initial natural stacking state of the dust materials with non-uniformity of density, undulating stacking, dust coagulation with each other, and easy compaction, to improve the external working environment of ash level detection, and to overcome poor ash discharge, etc. In this situat...

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Problems solved by technology

[0004] 1) Vibration of the material container wall: This method can change the arrangement of dust to a certain extent, smoothen the peaks of stacking, and eliminate the voids caused by hardening or suspension; however, due to the effect of vibration, the dust As the vibration continues, the stacking will become more and more dense, thus becoming easier to compact, which is extremely unfavorable for subsequent ash unloading operations

[0005] 2) Straight-through gas purging: blowing and agitating the dust through gas purging plays an active role in intervening in the natural accumulation of dust materials. This method has a more obvious local effect, but the area that cannot be purged by the gas becomes a dead angle; at the same time, the gas is purged Limited by pressure, temperature, nozzle characteristics, material particle size, density, etc., the effective distance of blowing in dust is limited

[0006] 3) Air (Nitrogen) Cannon: Using the characteristics of more destructive shock generated by launching pulse gas, stirring the dust material as much as possible, cooperating with the change of nozzle shape and the adjustment of launch angle, etc., achieved better expectations effect, but when the gaps of dust particles contain moisture, resulting in hardening, the cross-sectional area of ​​the gas outlet of various nozzles is small, no matter round, oval, duckbill-shaped, porous, etc., due to the increase of the gas injection speed, the gas directly contacts the dust The area of ​​the material is very small, so that the actual effective agitation of the dust material area is limited. The result of the gas injection in the above-mentioned dust containing a lot of water and serious hardening is to form a slender cavity similar to the cross-sectional area of ​​the nozzle, which cannot make the container The inner material is flat, so the real material level cannot be detected

[0007] 4) Mechanical stirring: it is a direct and effective method, but the energy consumption and wear cause high operating costs, and the sparks and flying dust caused by it will directly increase the risk of explosion, and the places where it can be applied are limited

[0008] 5) Shaking or tipping the tank: to make the material re-accumulate and arrange the dust structure, but it is not easy to realize for large-scale industrial equipment

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