Large TIVAR 88 Lined Hopper

TIVAR® 88 Liners for Silos, Bins, Bunkers & Hoppers

The primary benefits of TIVAR® 88 liners are their low coefficient of friction surfaces and excellent slide abrasion wear resistance. With respect to silo, bin, bunker, and hopper applications, TIVAR® 88 is an excellent choice for interior sloping wall surfaces. The non-stick low coefficient of friction surface of TIVAR® 88 produces lower wall friction angles than 304 2B stainless steel. In new construction applications, TIVAR® 88 allows engineers to design shallower wall angle hoppers for mass flow discharge. Retrofit applications of TIVAR® 88 liners artificially increase sloping surfaces to allow for complete discharge of bulk materials. TIVAR® 88 is also chemically inert, corrosion resistant, and will not absorb moisture.
Achieve Mass FlowCoal HandlingStop Bunker Fires

TIVAR® 88-2 Liners for Improving the Flow of  FGD Gypsum

As a result of its cohesive strength FGD gypsum can plug-off transfer points and chutes within seconds, making the conveyance of this bulk material extremely challenging. TIVAR® 88-2 liners offer a low coefficient of friction non-stick surface which significantly reduces the ability of FGD gypsum to stick and build-up on the interior surfaces of hoppers, flop gates, diverters, transfer housings, chutes, belt cleaners, and return idlers. Taking advantage of the flexibility of TIVAR® 88-2 liners, Lawrence Industries offers pre-fabricated liner kits. These include: fabricated drop-in inserts and complete polymer chutes and hoppers. These design options serve to improve the reliable flow and discharge of FGD gypsum by using round and radius surfaces with welded seams and minimal surfaces penetrations.

TIVAR Fabricated Chute

TIVAR 88 Lined Rail Dump Receiving Hopper

TIVAR® 88 Conveyor Skirting

TIVAR 88® skirt boards are an excellent way to keep materials moving smoothly on a conveyor. The low coefficient of friction surface of TIVAR® 88 prevents material build-up, relieving the stress on the conveyor motor. TIVAR® 88 skirt boards can be fabricated to match almost any conveyor configuration with either a steel frame to bolt to a hopper or as replacement skirting to be fastened to your current conveyor guide. TIVAR® 88 has a high abrasion resistance, ensuring a long production life with minimal down time due to wear.

TIVAR® 88-2 Liners for Off Road Equipment

TIVAR® 88 liners are an excellent choice for off-road equipment hauling bulk materials such as: overburden, clay, dirt, fly ash, and muck. The release properties of TIVAR® 88 reduce carryback and lower dump angles, resulting in quicker turnaround times and more efficient operations. Liner thicknesses for this application range from ½” to 1” thick, mechanically fastened for a secure installation.

TIVAR 88 Lined Dump Truck

TIVAR 88 Lined Rail Dump Receiving Hopper

Rail Dump Receiving Hoppers

Coal handling applications for TIVAR® 88 liners are many. The photograph on the left shows the interior of a railcar rotary dump receiving hopper being lined with TIVAR® 88 panels. The two receiving hoppers are found in a public utility plant located in the northern Midwest portion of the United States. During winter operations, the plant experienced a condition in which coal, rotary dumped from the railcars, would build a large eyebrow of coal on the spill side walls and center divider. The immense build-up of coal would bring dumping operations to a stand still and require the use of a hydraulic lump breaker (backhoe arm) to dislodge the build-up. TIVAR® 88 liners were pre-fabricated and attached to steel backer plates. The concrete anchors were then mounted to the hopper walls. After four years of continuous operation, and over 6 million tons of coal transferred, the TIVAR® 88 liners are still performing well with no signs of wear or dislodgment.

Case History

TIVAR® 88-2 In Bottom Dump Railcars

TIVAR® 88-2 liners have successfully been utilized as a non-stick surface on the sloping wall surfaces of bottom dump railcars for over 25 years. Clients who have benefited from retrofitting their railcars for improved bulk material discharge include those handling coal, sand, gravel, nickel concentrate, copper concentrate and distillers of dried grain.

The most common thickness of TIVAR® 88-2 liners installed in railcar applications is 3/8”, mechanically fastened for a service life in excess of 20 years.

TIVAR 88-2 Lined Railcar