Origin of dust The dust was originally caused by ore crushing, part of which was carried by the ore itself, and the other part was produced after the ore was broken. The general movement track of the ore is that the ore enters the machine from the inlet, and various effects in the machine are broken up to the relevant particle size and then discharged from the discharge port, and then transported to the Post-processing equipment through the chute and the belt conveyor. It can be seen that the devices that make the dust directly in contact with the air are the feed port, the discharge port, the chute and the belt conveyor. In addition, in the production process, the material will have a certain height potential difference due to the use of the hopper, the protective cover, the chute, etc., which is another major cause of dust generation. Dust pollution from jaw crusher case analysis To solve the problem of dust pollution, first, to control the dust source to avoid its spread by external force, and second, to improve the local structure of the machine, the specific measures are as follows: 1. Seal the cover of each dust source. The most important thing is to equip the water spray device and the dust suction device. (1) Two water spouts can be arranged in each of the three main parts: the inlet port, the discharge port and the dynamic crushing chamber. The two nozzles at the man feed port point to the inlet; the two nozzles at the discharge port are opposite. Forming a certain angle, the sprayed mist water is formed into a crossed state to achieve an optimal spray effect; the nozzle at the crushing chamber is disposed behind the moving jaw at an angle to the horizontal. (2) A vacuum cleaner can be installed at the inspection port behind the discharge port and the crushing chamber, and the dust cover of the vacuum cleaner of the discharge port is about 1000 mm away from the discharge port, and the plane of the dust cover is perpendicular to the flow direction of the dust; After connecting, the connecting duct between the vacuum cleaner and the fan is designed as a flexible duct to facilitate the refueling and daily maintenance of the crushing motorized boom. 2. The structure can be modified and optimized in the inclination angle of the chute chute, the tooth plate, and the like. (1) The measure to reduce the difference in the potential energy of the material is to reduce the inclination angle of the chute chute. (2) When the overall size is constant, the number of teeth of the tooth plate is increased, and the tooth shape is relatively small. 3. In addition to the above two aspects, the unreasonable production process and the blockage of the sieve plate can also lead to the increase of dust. Therefore, it is necessary to adopt advanced environmentally friendly technology and equipment for production, and the process of transportation is adopted. Closing the conveying equipment with good performance and cleaning the sieve in time to filter out a small amount of small particles and dust before the material is broken.
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As the first equipment for ore mining, the working environment of the jaw crusher is often harsh. Large pieces of ore will inevitably generate a large amount of dust during the crushing process. As the airflow spreads into the air, it will not only cause serious environmental pollution. It will also cause certain harm to the physical and mental health of the staff. Therefore, how to effectively reduce the dust pollution of the jaw crusher has become an urgent problem for major manufacturers. The Red Star machine has concluded a series of solutions through continuous analysis and research.