JMS - Model Bio-Hopper - Live Bottom Hoppers
From Bio-Handling
The effective management of biosolids has become of great importance for wastewater utility organizations. Beneficial use of solids removed from the wastewater treatment process contributes positively to both plant costs and the environment. Treatment plant biosolids come with several negative characteristics. Biosolids are both high in moisture content and contaminants. The result is a heavy, sometimes wet, sticky, odor laden material that is often challenging to move and store.
Product Details
JMS Bio-HOPPER (Live bottom hoppers) are one of the most efficient solutions for handling biosolids. They are specifically designed to store and discharge strongly cohesive material of various solids with a tendency to stick together causing bridging, rat-holing and poor flowability. The live bottom is made up of flooded shafted, or shaftless feeding screws that work together to keep material moving as it is loaded into a truck, pump, screw conveyor or other bins. Leveling screws within the hopper keep material moving in a first-in first-out even pile draw down. Bulk solids properties including moisture content, cohesiveness, shear strength, and compressibility are taken into consideration when designing an effective system.
Advantages
Process Advantages
- Prevents bridging, and rat-holing, and delivers even strongly cohesive material at a controlled rate
- Available as shafted or shaftless screws with the ability to customize the system for process needs
- Individual drives available for each screw, optimizing redundancy and control
- High capacity systems at low RPM for reduced maintenance and long life
- High torque drive for efficient start-up under high head conditions
Experience Advantages
- JMS has decades of systems design and manufacturing experience
- Full systems manufactured to OSHA and CEMA standards
- Structural steel capabilities for supplying platforms, walkways, and ladders
- Project Management expertise from conception through start-up
- Bulk materials testing for optimum design
Options
- Removable end plates for easy access
- Ladders, handrails, platforms, and custom support available, single source
- Odor control connections
- Hopper manway for interior access
- Heat tracing to prevent freezing
- Liquid-tight shaft seals
- Continuous and/or point level sensors
- Load cells for accurate measure
- Leveling devices to utilize entire volume
- Lump breakers/grinders for protection
- UHMW-PE lining to protect interior
- Specialized control panels with PLC
Bio-HOPPER Inlet Options
- Slide gates or diverter gates for control
- Grizzly screen for operator protection
- Various retractable cover designs (electric, pneumatic, hydraulic)
Bio-HOPPER Outlet Options
- Slide gates with advanced low leakage seals
- Flexible or telescoping load-out chutes
Key Features
Drive Systems
Individual drive systems can be provided for each screw, providing the most redundancy for live bottom and leveling screws.
Shafted and Shaftless Screws
Both are available to meet the needs of the process. Shaftless screws with UHMW-PE liners are recommended for bins longer than 22 feet.
The Tops in Live Bottom
JMS custom designs Bio-HOPPER (Live Bottom Hopper) in stainless steel, painted carbon steel, or a stainless steel shell with painted external stiffeners. Designs ranging up to 500 cubic yards in capacity, either field welded or bolted, effectively discharge even the most difficult materials. Discharge rates can vary dramatically, and several options such as load cells, level sensors, and odor control are available to meet the process need. JMS experience ensures longevity and low operational costs over the life of the equipment. Having complete system design capabilities, JMS can engineer storage and feed systems such as Receiving Stations, Bio-Stabilization Systems, or Truck Load-out Stations utilizing Bio-HOPPER (Live Bottom Hopper) bins with conveyors, mixers, and structural supports.
JMS in Control
From a simple hopper system, to multiple component bulk material handling systems, our years of experience and in-house manufacturing capabilities are demonstrated in each project. JMS engineers and designers use key engineering principles and material test results to make sound decisions on flight configurations, screw pitch, and diameter to maintain mass flow and deliver the specified material at the correct rate. Maximum operating torque is determined for the most demanding combination of service conditions, feed rate, and biosolids consistency. Materials of construction are carefully chosen for the particular conditions, all with the goal of long life and low maintenance requirements.
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