NISCO Fan Co. offers various designs of industrial fans and blowers for Pulp and Paper Industry.

The paper manufacturing industry utilizes fans for power boilers, recovery boilers, lime kilns, dissolving tanks, and dryers. These applications, which are integral to the production process, are often very corrosive. Reliability and durability of fans and blowers for such applications are vital for continuous operation. NISCO fans for demanding and corrosive applications ofer real value – saving on future downtime and maintenance costs.

BOILERS

Boiler fans create efficient combustion by supplying a consistent and reliable ait flow. Induce Draft Fans (I.D. Fans) operate at elevated temperatures and draw the air stream through the combustion chamber, then push it through pollution control equipment. Forced Draft (F.D. Fans) or Combustion Air Fans push the air stream into the boiler combustion chamber. Multi-Fuel Burning Power Boilers are used to create steam for different power needs. Induced Draft Fans are typically AMCA arrangement 3, single or double inlet with inlet box(es). Wheels often require abrasion resistant construction with radial tip or backwardly curved blades. Combustion Air FD Fans are typicallyconstructed of carbon steel, and utilize airfoil or backward inlined blade design. Common AMCA arrangements for combustion air fans are arrangement 3 and 8, both with inlet vane or outlet damper control.

EXHAUST FANS

Exhaust Fans are typically used on the suction side of a scrubber or fabric filter, and pull the air / gas stream through the piping and cleaning device. Dissolving tanks are used in conjunction with Recovery Boilers to recapture process chemicals. Exhaust Fans draw hydrogen sulfide or sulfuric acid fumes through a wet scrubber. This corrosive atmosphere can require either FRP, stainless steel or alloy construction. Exhaust fans can be in either belt or direct drive arrangements. Lime Kilns may be used to recover lime used in paper manufacturing. The fans used in this process often require high pressure and handle corrosive gas streams. Straight radial or radial tipped blade designs, 304L or 316L stainless steel construction and special shaft seals are often employed.

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It is something that I spend a lot of time on; convincing the CEO to think from the customer standpoint, talking to the department head about what will deliver results at the frontlines.

It requires a lot of thinking to make something ‘dumb’ and it is never simple to make anything ’simple’. Companies are often caught in a situation where they are terribly excited about a slew of product launches or service upgrades which they think is going to be terribly exciting to the customer. The customer may indeed be excited, only if somebody told him about it or better still answered all his queries.

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Throughout the chemical process industry, it’s difficult to think about plant monitoring without visualizing personnel on daily rounds laboriously filling out paper log sheets. Besides being a manual-intensive routine, this traditional monitoring approach primarily focuses only on documentation. Typically stored in filing cabinets, field data currently collected by most plants is lifeless, rarely reviewed for plant performance monitoring and trouble shooting. However, this outmoded approach is quickly giving way to an electronic monitoring system outside of the control room. Now plant operations data are wirelessly gathered on-site with handhelds, then fed into a hosted Web-based system. This system allows quick operational decisions based on the most accurate information, to save time and money. The current method’s only benefit is to ensure that operators actually make the rounds of equipment observation/inspection. Even then, operators tend to pencil-whip data without really observing the plant equipment. Since supervisors are busy with routine shift work, even experienced operators fail to recognize pit fall readings and prevent a plant shutdown or unsafe situation.

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Oleg Systems Co. is a designer and manufacturer of industrial dust collection systems including dry type dust collectors. Dust collection equipment utilizing the principle of wet dust collecting is available in numerous designs utilizing a number of principles and featuring wide variation in effectiveness, initial cost, operating and maintenance expense, space, arrangements and material of construction.

The use of centrifugal force to throw a dust particle to the periphery of an air stream has been used in the cyclone collector for many years. Dry centrifugal dust collectors can be divided into two basic groups cataloged by their effectiveness in removal of smaller dust particles.

Cyclone Dust Collectors are frequently applied for the removal of coarse dusts from an air stream, as a pre-cleaner to more efficient dry or wet dust collectors and / or as a separator in product conveying systems using an air stream to transport material. Principle advantages are low cost, low maintenance and low pressure drop (in order 0.75″ to 1.5″ WG), but this type dust collector can not be used for collection of fine particles.

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