Organic waste gas treatmentCatalytic combustion equipmentThe device mainly consists of four system modules:
1. Pre processing filtration module: spray tower, dehydrator, dry filtration box
2. Adsorption module: activated carbon adsorption box, activated carbon, inlet and outlet air ducts, main induced draft fan
3. Desorption+catalytic combustion module: electric heating module, university plate heat exchanger, catalytic combustion module, catalyst, carbon box control valve group, desorption circulation fan, supplementary cooling fan.
4. Control system module: fan frequency converter, PLC control unit, temperature measurement and signal feedback unit
Adsorption module:
Activated carbon adsorption box:
Desorption+Catalytic Combustion Module:
Catalytic combustion principle: The desorbed gas is heated by flame arresters, inlet valves, heat exchangers, and electric heaters (preheaters) to raise the gas temperature to the required temperature for catalytic combustion. Under the action of the catalyst in the catalytic bed, it decomposes into water and carbon dioxide, while releasing a large amount of heat to further increase the gas temperature. The high-temperature gas is then partially recovered by the heat exchanger and discharged through a fan. In addition, by controlling the flow rate of the fan, the concentration of organic matter in the gas can be controlled within an appropriate range. The heat released by the combustion of this concentration can maintain the required heat for the operation of the system. At this time, the burner in the catalytic bed can be stopped, and the system can use the heat released by the combustion of organic matter to maintain operation, saving operating costs.
Organic waste gas treatmentCatalytic combustion equipmentEasy operation of the device: automatic control is achieved during equipment operation.
Low energy consumption: The equipment only needs 30-60 minutes to heat up to the ignition temperature (when the concentration of organic waste gas is high), and the energy consumption is only the fan power.
Safe and reliable: The equipment is equipped with a flame retardant system, explosion-proof pressure relief system, temperature alarm system, and Xianjin's automatic control system.
Low resistance and high purification efficiency: using precious metal palladium and platinum impregnated honeycomb ceramic carrier catalysts from Xianjin, with a large specific surface area.
Waste heat can be reused: Waste heat can be returned to the drying oven, reducing the power consumption in the original drying oven; It can also be used as a heat source in other aspects.
Small footprint: only 70% -80% of similar products in the same industry, and there are no special requirements for equipment foundation.
Electrical control cabinet
Adopting domestically produced high-quality control cabinets.
Priority should be given to the bottom inlet and outlet lines of the control box/cabinet, and the control cabinet should have a base.
The conduit is made of galvanized steel pipe, and the control cabinet, conduit bridge, and equipment casing are grounded.
Reserve one 220V/10A three hole maintenance socket in the control cabinet.
4) Fan control
The exhaust gas main induced draft fan is controlled by a frequency converter, and the air volume can be adjusted as needed.
The desorption fan is controlled by a frequency converter and interlocked with a temperature alarm.
5) Heating power control
Proactive prevention measures:
(1) A dilution valve is installed at the intake end to automatically open and supplement cold air for dilution and cooling in case of high exhaust gas concentration and sudden increase in CO temperature.
(2) Technical research and project targeted design before design
Before designing the control system, our company will arrange technical personnel to work with your company to fully understand your company's production operations, measure VOC content multiple times at different time periods, distinguish production operations and time periods that may cause an increase in VOC content, and then summarize the situation and communicate with your company for confirmation. Corresponding control strategies can be designed in the CO control system program, such as temporarily emptying VOCs during production operations or time periods where VOC content suddenly increases, to avoid high concentrations of VOCs entering CO.
In terms of passive response:
When the VOC content increases and enters CO, the following measures can be taken to solve the problem:
(1) Multi point detection of oxidation chamber temperature. When the temperature exceeds the set value, the temperature valve will be opened for release and the machine will be shut down in a chain reaction; (Explosion relief valve)
(2) Install flame arresters and explosion vents in pipelines to ensure the safety of production equipment in enterprises; (Explosion proof membrane)
(3) Install a venting port for CO to ensure the safety of the positive oxidation equipment itself. (Explosion relief valve)