The role of vacuum cleaning equipment in the environmental protection industry

Vacuum cleaning equipment manufacturer: According to traditional concepts, incineration will inevitably produce a large amount of exhaust gas and will inevitably cause environmental pollution. Therefore, tail gas emissions must be strictly controlled when burning garbage. When burning garbage, the temperature of the gas combustion layer in the upper part of the furnace body is 999 degrees Celsius, which is generally maintained between 850 degrees Celsius and 1050 degrees Celsius, so that harmful gases including dioxins can be fully decomposed. The flue gas produced after combustion is very hot. In order to prevent the regeneration of dioxins during the cooling process, the flue gas must be processed by the cooling purification system.

Vacuum cleaning equipment manufacturer: The flue gas cooling treatment system of this vacuum cleaner mainly consists of a waste heat boiler, a hydrated lime addition device, an activated carbon powder spraying device and a bag dust collector. After combustion, the temperature of the flue gas after passing through the waste heat boiler is 800 degrees Celsius, and then drops sharply to about 200 degrees Celsius to prevent the production of dioxins. The quantitative addition of hydrated lime can neutralize the acidic components in the flue gas, avoid corrosion of the equipment, and make the acidic gas content meet the emission standards.

Vacuum cleaning equipment manufacturer: Activated carbon adsorption is currently recognized as an effective method for removing dioxins. The bag filter can trap activated carbon powder and residual smoke dust adsorbed with dioxins on the surface of the filter bag. Using this series of measures can effectively remove harmful substances in flue gas and ensure that emissions meet standards.

Vacuum cleaning equipment manufacturer: In order to prevent dioxins from being regenerated during the cooling process, the flue gas is treated by a cooling and purification system mainly composed of a waste heat boiler, a hydrated lime addition device, an activated carbon powder spraying device, a bag dust collector and a wet acid removal device. Effectively remove harmful substances in flue gas and ensure that exhaust gas emissions meet standards.

Vacuum cleaning equipment manufacturers: Pulse bag dust collectors generally use round bags and are divided into two types according to the movement direction of the dust-laden airflow, namely, inlet air and downward air inlet. It usually consists of a clean air chamber, an intermediate box, an ash hopper, a frame and a pulse injection device.

Vacuum cleaning equipment manufacturer: Filtration principle: When the dust-laden airflow enters the dust collector hopper from the lower part of the box, due to the sudden expansion of the cross-sectional area of ​​the airflow, the flow rate decreases, and some large particles, dense dust and condensed dust particles in the airflow spin down the ash hopper along the cylinder wall under the action of centrifugal force and gravity; tiny dust particles with small particle size and low density are suspended in the gas, enter the filter chamber evenly through the air distribution device, and are dispersed in the gaps of the filter bag. They are deposited on the surface of the filter bag through inertial collision and screening, and the purified gas is discharged from the main fan.

Vacuum cleaning equipment manufacturer: Cleaning principle: As dust continues to adhere to the outer surface of the filter bag, the dust layer continues to thicken, and the resistance value of the dust collector also increases; when the resistance value reaches a certain value, the pulse dust removal controller issues a command to control the pulse valve to open, and the compressed air in the high-pressure air bag flows to the small hole on the blowpipe through the pulse valve. The high-speed and high-pressure jet airflow is sprayed towards the venturi tube, forming an induced airflow several times the volume of the jet airflow. The dust outside the bag falls off from the outside of the bag under the action of mechanical force and falls into the ash hopper to achieve the purpose of dust removal; when the resistance of the filter bag drops to the lower limit, the dust removal mechanism stops working to maintain the continuous operation of the dust collector.