In the ore material crushing bag dust removal system, the main characteristics of ore dust gas are: no temperature, no corrosion, no condensation, high dust dispersion, and large dust outlet concentration. In the design of the bag filter system of the crusher, the key issue is to collect all the dispersed dust gas into the bag filter.
The current crushing equipment commonly used in cement plants are: jaw crusher, cone crusher, hammer crusher, impact crusher.
According to the working principle of the crusher, the jaw crusher and cone crusher are mainly used to crush materials. The amount of dusting gas generated by the action is small and the flow velocity is small, so the dusting range is not large. , Its dust collection problem is easier to solve. The working characteristics of the hammer crusher and the impact crusher are: the main shaft rotates at a high speed, and the rotor in the casing drives the rotation of the hammer (or striking plate) similar to the rotation of the impeller in a centrifugal fan, forming a higher Gas static pressure (about 10 mmH2O positive pressure) bulges towards the discharge port. Because the direction of the blasted airflow is consistent with the discharge direction, a large amount of high-speed dust-containing gas is generated. The focus (difficulty) of the design and maintenance of the collection and crusher bag dust removal system.
Based on the working principle and characteristics of the crusher, our company's technical staff has developed a bag dust collector
suitable for the crusher
. This dust removal system absorbs foreign experience, reforms the process of the crusher dust collector
, and achieves the crusher discharge port. The collection system has reached zero emission standards, and the workers' operating environment. The bag filter
of the crusher
is improved from the original MC type pulse dust collector. During the process of dust-containing gas entering the middle and lower boxes from the air inlet of the dust collector, the dust is adsorbed on the dust filter bag, and the gas passes through The dust removal filter bag enters the upper case through the venturi tube and is discharged from the air outlet. With the accumulation of dust on the dust removal filter bag, the pressure loss of the dust removal filter bag gradually increases, and the pressure loss is fed back to the controller by the pressure gauge. The controller receives and sends instructions to trigger the pulse solenoid valves in sequence, so that the gas in the air bag is instantaneously ejected from the holes of the blow pipe, ejected from the holes of the venturi tube, and ejected to the corresponding dust removal by the venturi tube In the filter bag, the dust removal filter bag rapidly expands under the instantaneous reaction force of the air flow, so that the dust accumulated on the surface of the dust removal filter bag is shed, and the dust removal filter bag is regenerated.
The bag filter of the crusher combines the advantages of similar products at home and abroad, good sealing, flexible rotation, convenient replacement of the dust filter bag, the dust removal effect is greater than 99.9%, and the dust emission concentration is lower than _ standard. The dust-removing cloth bag adopts a body-shaped round bag structure. The structure is simple, the arrangement is compact, the filtering area index is high, the backflush amplitude is large, and it is easy to shake off and accumulate dust. Is the ideal dust removal equipment for crushers.
At present, the company's main bag dust collectors for crushing equipment are: jaw crusher bag dust collector, cone crusher pulse bag dust collector, hammer crusher bag dust collector
, and impact crusher dust collector