■Equipment principle and characteristics
Lime incoming method:Canned powder,Compressed air brought by the transport vehicle passes through the feed pipe,Delivered to the silo(20m3)inside;The lime stored in the silo is transported to the distribution system by vibrating silo top unloaders, star shaped unloaders, and screw conveyorsmaterialIn the jar,Simultaneously inlet solenoid valve and matchingmaterialCan mixer turned on,Prepare the dry powder to a certain concentrationIngredients;Pre configuredIngredientsEconomic allocationmaterialThe can's outmaterialGuan YoutoumaterialPump additionmaterialPoint.
◆Widely applicable. Widely used for sewage and sludge treatmentmaterialStorage and addition of agents, such as lime, activated carbon, sodium carbonate, magnesium oxide, etc;
◆Excellent sealing performance, ensuring a clean working environment;
◆Good anti caking effect;
◆High degree of braking, capable of achieving unmanned operation.
■Equipment structure
Lime storage system
It consists of a feed pipe, a top dust collector, a pressure vacuum release valve, a silo, a vibrating bottom unloader, a manual plug valve, a star shaped unloader, a screw conveyor, a top platform and guardrail, a steel ladder, and soft connections. The top dust collector, vibrating discharge hopper, star shaped discharge device, screw conveyor, pressure relief valve, and level gauge are all internationally renowned brandsWAN。
dissolvematerialsystem:From the inlet pipeline, solutionmaterialCan, dissolvematerialCan mixer, addingmaterialCan, addmaterialComposed of a tank mixer.
storematerialsystem:By storagematerialTanks and storagematerialComposed of a tank mixer.
control system:It consists of an electrical control cabinet, a level gauge, and a frequency converter.
■working principle
Lime is transported to the silo through the feeding pipe by the compressed air provided by the transport vehicle;When the composite of powder and compressed air enters the silo,After passing through the top dust collector of the warehouse,Air discharge,The filter bag of the top dust collector is cleaned by oscillation of the cleaning device,Shake the powder into the silo.
Setting of electrical control cabinet“high material level”and“low material level”alarm function,So that operators can grasp the material level situation;Dry chemical material level in the silo“high position”and“low position”Not only should the indicator lights and buzzer alarms be displayed on the control cabinet panel,And output the alarm signal to the central control roomPLC。
When the material level in the silo reaches the set median level,Notify the transport vehicle to deliver materials,Connect the feed pipe,Activate the air pump of the transport vehicle,Pump dry chemicals into the silo. Simultaneously start the dust collector
Cleaning device.
When the material level in the silo reaches the set high level,audible and visual alarm,And output the alarm signal to the central control roomPLC;at this moment,Turn off the air pump of the transport vehicle,Disconnect the feed pipe,Drive the transport vehicle away;Simultaneously delaying5Close the cleaning device on the top dust collector of the warehouse in minutes(Adjustable time setting)。
When the material level in the silo reaches the set low level,audible and visual alarm,And output the alarm signal to the central control roomPLC;Like a delay30The dry powder has not been replenished to the silo in minutes,thenPLCThe entire system will be shut down(Adjustable time setting)。
The dry chemicals stored in the silo are transported to the distribution system by vibrating top unloaders, star shaped unloaders, and screw conveyorsmaterialIn the jar,Simultaneously inlet solenoid valve and matchingmaterialCan mixer turned on,Prepare the dry powder to a certain concentrationIngredients。
Pre configuredIngredientsWaiting for investmentmaterialPump additionmaterialPoint.
Under normal working conditions,castmaterialThe pump continuously pumps from storagematerialExtraction from the tankIngredients;When storingmaterialWhen the liquid level in the tank is at the set low level,The liquid level gauge sends a signal toPLC,PLCSend instructions to start the vibration bin bottom unloader, star unloader, and screw conveyor,Simultaneously start the configurationmaterialCan mixer and open the water inlet solenoid valve to let in water,matchmaterialProcess begins;When storingmaterialWhen the liquid level in the tank gradually rises to a high level,The liquid level gauge sends a signal toPLC,PLCSend instructions to stop the vibration bin bottom unloader, star unloader, and screw conveyor,Simultaneously stop configuringmaterialTank mixer and turn off the inlet solenoid valve to allow water to enter,matchmaterialProcess stopped;This work cycle continues indefinitely.
