Evaluation & Troubleshooting, Refurbishing & Upgrading of existing Ventilation systems
Most Air Pollution control systems are initially properly designed based on accepted engineering practices and guidelines and will perform adequately for a period of time after the initial startup. However, over time, problems may develop due to several reasons.
Frequently encountered maintenance problems:
- Many system problems are caused by changes or modifications that have been made to the manufacturing process, such as increased production. Modifications change the required air volume that the ventilation system was designed to handle.
- Systems that have been in service for a number of years have often been modified by the addition of new ventilation points, which may create an imbalance and overload the ventilation system.
Changes in a manufacturing process are usually made in an effort to increase production or cut costs. Unfortunately, when these changes are made, usually little or no attention is given to the dust control systems until the amount of airborne dust being generated becomes noticeable or intolerable.
At this point, the realization that something is wrong with the dust control system sets in and the troubleshooting starts. Unfortunately, many times there is little or no original design documentation on the system available, especially if changes have been made to it over the years. This is when the system must be reviewed from beginning to end in order to determine why the problems are occurring and what should be done to correct them.
Frequently encountered design problems:
- Ductwork design problems include poorly designed branch entries, poorly designed elbows and size variations that hamper airflow and/or cause accelerated wear.
- Improper design of hoods which tends to increase grain loading to higher levels than the collector was originally designed to handle.
- Many Dust Collectors are a standard design and use the inlet duct collar in the hopper. This type of inlet can direct airflow into the bottom of the hopper area and can cause collected material to swirl upward and be re-entrained into the filter area of the collector.
- An undersized or oversized dust collector and/or fan.
IVT Engineering offers a complete inspection and troubleshooting services for all types of systems. Our reports will outline the description of the problem, the nature of the mechanism that has caused failure and recommendations on how to bring the system to the state-of-the-art, including estimated budget costs for implementation. Owners will find our engineering report of inspection most useful in the evaluation of system performance and the planning of remedial action. This information can also assist in the planning of budgets and work schedules ahead.
We will also retrofit an existing system. An overhaul of your dust collector could both increase its efficiency, and reduce maintenance and operating costs. It could be that you are not getting the full value of the equipment you already have.