Dust collector is a device used to remove dust and other airborne particles from industrial and commercial environments. It is commonly used in manufacturing facilities, woodworking shops, and other industries where dust and debris are generated during the production process.
The main purpose of a dust collector is to improve air quality and maintain a clean and safe working environment. It works by capturing and filtering the dust particles before releasing clean air back into the surroundings. It helps to reduce the risk of respiratory problems, fire hazards, and equipment damage caused by dust accumulation.
There are different types of dust collectors available, including baghouses, cartridge collectors, cyclone separators, and electrostatic precipitators. The choice of dust collector depends on factors such as the type and size of the dust particles, the volume of air to be filtered, and the specific requirements of the application. Dust Collector,Baghouse Dust Collector,Mining Bag Dust Collector,Mining Bag Filter Dust Collector Shenyang North Heavy Metallurgical Engineering Technology Co., Ltd. , https://www.nhmetallurgy.com
Regular maintenance and cleaning of the dust collector are essential to ensure its efficient operation. This includes emptying the collection hopper or bag, replacing or cleaning the filters, and inspecting the system for any leaks or malfunctions.
Evanston Fire Department history Part 48
From Phil Stenholm:
Another Chapter on the History of the Evanston Fire Department
The End of an Era
Lt. John Schmidt returned from Germany in 1949 and was promoted to captain. This promotion happened after Lt. William Owens was also promoted to captain but decided to retire almost immediately after completing 20 years of service. Meanwhile, Lt. Ed Fahrbach was promoted to captain and assigned to Engine Co. 4. Irish-born Capt. Michael Garrity took advantage of his seniority to move from Station #4, which was located in what was then considered the less desirable southwestern part of Evanston, to Station #3 on Green Bay Road in North Evanston. Unlike Station #4, Station #3 was conveniently near both bus and rail transportation. Around the same time, Fireman Charles Novak was promoted to lieutenant.
By 1950, Evanston's population had grown to 73,641, marking a 20% increase compared to the 1930 population. This growth could largely be attributed to the post-World War II baby boom as well as the residential development in both southwest and northwest Evanston. However, despite hiring 50 new firemen, mostly WWII veterans, between 1946 and 1949, the leadership of the Evanston Fire Department remained outdated, with many top officials being elderly and struggling with health issues. Change was imminent.
Following a prolonged illness, EFD Chief Albert Hofstetter passed away on September 24, 1950, at the age of 70, after 49 and a half years of service with the department. He had hoped to retire on his Golden Anniversary in March 1951, but unfortunately, he did not live to see that day.
Just 17 days after Chief Hofstetter's death, 67-year-old 1st Assistant Chief Fire Marshal J.E. Mersch suffered a fatal heart attack while leading the annual Fire Prevention Week parade up Orrington Avenue. Chief Mersch had served for 45 years with the Evanston Fire Department, initially as the first Fire Prevention Inspector for 22 years following a disabling leg injury in a traffic accident in 1927. He established the Fire Prevention Bureau in 1929 and continued running it until his untimely death.
The passing of Chiefs Hofstetter and Mersch occurred just two years after two other longtime chiefs, 46-year veteran Assistant Chief Tom McEnery and 38-year veteran Assistant Chief Carl Windelborn, had retired. These four veteran chiefs had collectively served 178 years with the EFD, averaging over 44 years each!
The most significant fire under Chief Hofstetter's leadership occurred in April 1950 when a blaze gutted the North Shore Flour Supply Company warehouse at 709 Chicago Ave. Since the warehouse was only a couple of hundred feet from Station #2, Engine Co. 2 arrived within a minute. They quickly attached to the hydrant next door to the south, deployed their lines, and entered through the front door to combat the flames.
Engine Co. 1 and Truck Co. 1 supported Engine Co. 2, with the truckmen climbing onto the roof and ventilating it. While the pipemen from Engine Co. 1 used a second line from Engine 2 to follow Engine Co. 2 inside, Truck Co. 1 struggled to effectively ventilate the reinforced roof. As a result, the two engine companies working inside had to retreat to avoid being overwhelmed by heat and smoke.
Engine Co. 4, Engine Co. 5, and Truck Co. 2 responded to a second alarm, with Engine Co. 3 relocating to Station #1. The off-duty platoon was called in to staff the reserve engine at Station #4 and the reserve truck at Station #3, providing relief for those fighting the fire. Nearby Station #2 served as a staging area for men from the opposite platoon awaiting assignments and as a temporary rest and recovery zone for firefighters after being relieved. The fire was eventually extinguished, but not before causing a $70,000 loss to the building and its contents.
A few days after the fire, the assistant chiefs acting as company officers for Truck Co. 1 and Truck Co. 2 organized remedial training for members of the two truck companies focusing on "proper vertical ventilation." During this training, noticeable deterioration of the aging wooden aerial ladder on Truck No. 1 was observed. Although the ground ladders had been replaced in 1938, the aerial ladder, trailer, and tractor were now 25 years old.
With Chief Hofstetter on extended medical leave, Assistant Chief Henry Dorband (the company officer of Truck Co. 1) was sent to meet with the mayor and aldermen to discuss the issue with the aerial ladder and propose potential solutions:
1. Replace the wooden aerial ladder with a metal one (estimated cost: $15,000);
2. Replace both the aerial ladder and the trailer (estimated cost: $25,000);
3. Replace the tractor, trailer, and aerial ladder (estimated cost: $35,000).
The city council chose option 3, and a bid was advertised for a tractor-drawn aerial ladder truck. Specifications included an 85-foot metal aerial ladder, waterproof equipment compartments on the trailer, and a canopy cab with additional rear-facing bench seating for four behind the cab.
Surprisingly, Peter Pirsch & Sons of Kenosha, Wisconsin, submitted the lowest bid and was awarded the contract. With an expected delivery date of August 1951, this would be the first fire apparatus purchased by the City of Evanston from a manufacturer other than Seagrave since 1911.
Over the years, Evanston had been one of Seagrave's best clients, spending around $135,000 between 1917 and 1949 to buy a total of eight pumpers, three ladder trucks, and a tractor, along with major repairs in 1927 and 1928 and a rebuild of one of the 1917 pumpers in 1930. However, by 1950, Seagrave was inundated with post-war apparatus orders that sometimes led to delivery delays of up to two years, and they were losing bids they previously would have won.