Highly efficient equipment for detention and crushing of industrial and domestic wastewater without removing it from the stream
Description
Characteristics
Question-answer
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Description
Crusher grates are highly efficient equipment for the detention and crushing of industrial and domestic wastewater without extraction from the flow. Optimal solution to ensure reliable and uninterrupted operation of pumping equipment at further stages of treatment.
Scope of application of sewage grates-crushers:
Sewage pumping stations;
Buildings of grates on the sites of treatment plants.
Working principle of crusher grates:
The crusher grate is installed directly in the canal and is fixed by means of a mounting frame, which is fixed to the surface of the canal by means of anchors. The frame not only holds the grating in working position, but also serves as a guiding element when mounting/dismounting the grating for maintenance work. The crusher grate is lowered into the canal on the guides in the frame and its body is fixed to the frame above the water level.
The principle of operation of the crusher grate is that the fine scum contained in the wastewater passes through the gaps of the filter drums. The filter drums prevent the passage of large mechanical impurities present in the flow and direct them to the crushing unit. The crushing unit consists of a set of cutters placed on counter-rotating shafts. As the coarse particles pass through it, they are crushed to a size that does not interfere with the pumping equipment and further water flow.
Based on the requirements for a particular grate-crusher, conditions of reception and quality of wastewater, we can offer several types of grate-crushers:
small without a filter drum;
medium with one filter drum;
large with two filter drums.
Durability of Ekoton crusher grids:
sturdy construction and reliable trouble-free operation;
the material of manufacture of the crusher grate bodies is painted cast iron;
milling cutters and shafts made of hardened alloy steel;
possibility of using specialized steel of particularly high hardness;
high structural strength;
resistance in aggressive environment;
guarantee of quality protection of bearing units against sand, dirt and water thanks to tungsten carbide coated mechanical seals;
complete dust and water tightness of electric actuators;
submersible operation;
protection degree of actuators - IP 68;
lifting hand-operated soro-holding grate to hold the debris during maintenance of the crusher grate (optional).
Ergonomics and performance of EKOTON crusher grates:
quick assembly and disassembly;
installation directly into existing ducts;
thorough crushing of both hard and soft fibrous inclusions due to the difference in angular velocity and configuration of the cutter teeth;
retention of unshredded solids by filter drums while maintaining high throughput;
automatic protection of the crusher grate against jamming by solid inclusions due to short reverse rotation of the milling cutters and their restart;
removal of the crusher grate for maintenance without stopping the pumping station and emptying the canal.
Automation of crusher grates:
operation in automatic mode allows to exclude the presence of service personnel at the pumping station and ensure uninterrupted operation of pumping equipment at further stages of cleaning;
organization of data transfer on the state of the grate-crusher to the upper-level automated control system using standard communication protocols (if necessary).
Characteristics
Technical characteristics of the crusher grate EKOTON
Question-answer
What happens when hard to grind inclusions (waste) get into the crusher grid?
The automation of the control cabinet determines the exceeding of the permissible torque and switches to the crushing mode by working off cycles of forward and reverse motion, and after crushing of the object continues to work in the normal mode. In case the crusher has failed after a preset number of cycles, it stops with an emergency stop signal.
Why do you propose to crush the waste in the water stream instead of removing it immediately?
Large inclusions (scum) can damage the pumping equipment of wastewater pumping stations. In addition, municipal pumping stations are most often located around residential buildings or near public areas. The extraction of wastes from sewage involves their temporary storage and transportation, which worsens the sanitary situation. Pumping stations are often located at considerable depths, which creates problems when transporting the waste. The most effective solution in such situations is to grind the waste to a size that is safe for pumps and pipelines at the pumping stage. Further cleaning of the effluent from mechanical inclusions will be carried out at the treatment plant.
