Dear Sirs

Since more than 20 years we line glass cullet chutes with VATHARD, chromium carbide hardfaced plates.

Generally, we recommend a thickness of 8 (base plate) + 5 mm hardfacing thickness.

We manufacture the chutes according to your drawings.

VATHARD gives the optimum life time and is impact resistant.

Kindest regards

Arnold Van Acker

VATIS BELGIUM ■

Having some experiences with solving abrasion problems in coveying silica, I can advice you to try a 2 layers steel, on layer of a weldable ST35 steel and one layer of martensitique steel with a hardness of 62 to 64 HRC, you can weld it and the surface under abrasion is harder than hardox and can not break because of schocks thanks to the soft layer.

Lifetime increase 5 times mnimum, I can give you references. ■

We produce many chute liners with rubber with steel and ceramic etc have you tried any of this type of product? We would be happy to look at it for you.

Dan ■

Originally posted by P.J.Talreja

In one of our projects we lined the tranfer chutes of belt conveyors carrying glass cullet ( broken glass ) with HARDOX 400 , 10 mm liners were used. The liners have been worn out within 3 months of fixing, web are contemplating of fixing HARDOX 500 now. Anybody having experience in handling such materail & the best liner material recommended & the expected life of the liner.

Hello Mr. Talreja,

if you line your transferchutes with profiled wear rubber, like Trellex XP (see www.metsomenerals.com for this product), and mount it upside down (so it catches the transferred product) you create a verry small "stonebox". Your lifetime of 3 months will rise to 3 years.

The advantage with this rubber is:

You can mount it easy by welding studbolts to the steel backplating which is vulcanized to the rubber.

It is cheap compared to is performance.

You can cut is in the desired shape by ribbonsaw.

You can only use this profiled rubber with NON STICKY products.

If you have a sticky product, your chute will clough

When you handle sticky products you can use ceramics vulcanized to rubber and a steel mounting plate to the back.

An example of such a product is "Keraflex"made by Kalenborn in Germany

The ceramics have a Mohs hardness of 9 and will also extend your lining lifetime to about 3 years

If that lifespan is not long enough you can put "Sancic" wearplate in your chutes.

It is Tyngsten carbide granules in white cast iron.

It is expensive, but your chutecladding will exeed 5 years.

This product is made by Sandvic in Sweden.

With kind regards

Harry ■

Dear Sir :

As TREVORH points out, Ceramic liners with high grade Alumina can improve your wear situation significantly. Rather than the price of the wear material to be installed, you should look for the liner with the cheapest cost per ton processed.

At Corrosion Engineering, we manufacture and sell liners made with high grade alumina embedded in a rubber matrix. Our customers process millions of tons of base metals, iron ore, coal and other minerals worldwide.

Feel free to contact us. If you're in Australia, please contact our partner Imatech (www.imatech.com.au).

Regards, ■

Dear Sir,

One of our customers is using High Alumina ceramic Ball mill liners to protect the Steel Casing of the Ball Mill.

We are confident that High Alumina ceramics will solve your wear problems to your satisfaction.

Please contact us with full application parameters.

Write back to premkumarm@cumi.murugappa.com

Regards,

M.Premkumar ■

Dear Mr. Talreja,

Kindly contact me at the following address or give me your contact number so that we can contact you. We are expert in Abrasion resistant liners and had successfully supplied to many glass manufacturers. We need to know few more technical parameters before we suggest you any solution.

Regards,

Krishanu Das

Zonal Manager (West Asia)

Polymer Industries India Ltd.

606, Powai Plaza, Hiranandani Gardens,

Powai, Mumbai - 400 076

Email: krishanu@polymerindustries.co.in

Landline: 022-25703847/48 ■

Dear Sirs,

We had experience about dealing with the iron ore impact area 300mm x 400mm in China Steel Corp. in Taiwan.

We use

Alotec Impact Ceramic which is in octangle type at 20 mm depth, Rubber at 6 mm depth,

and Steel plate at 6 mm depth,

with M16 bolt at the back to fasten on the chute.

The performace have been very well since 6 months ago.

We recommend you to try this way.

Hope it helps.

Danny Yang

Jim Way Enterprise Co., Ltd. ■

Dear Sir,

We deal laminated special cast wear plates or bar which are specifically used in in different chutes and are subjected to both abrasive & impact forces with heat resistance properties about 500 degree centigrade . The metallurgical bonding strength of the laminated chrome molybdenum cast plates along with high tensile back steel plates are over 35,000 psi. Various sizes including tablet sizes are available depending upon application in the area of chutes. The estimated life of our laminated cast wear plates are around 10 times more than ordinary wear plates. For further details, please send your contact details to enable us to discuss further and to submit suitable offer.

Sibtosh Chatte

HIDS

(Mobile) 91-9330868228 ■

We manufactured a feeder with lining made from diamond dust/rubber for conveying glass cullet. I am not the Sales Engineer so I don't recall the manufacturer of the liner, but I could get the info for you if you are interested in it - let me know.

We also manufacture feeders with ceramic liner.

see images:

http://www.jvivibratoryequipment.com...mond-liner.jpg

http://www.jvivibratoryequipment.com...FUF 72 dpi.jpg

http://www.jvivibratoryequipment.com

Tiffany Moore

JVI ■

We can help for Anti-corrosive pickling tanks and plants - Visit www.picklingplants.com ■

We are supplier of wear protection alumina ceramics, ceramic grinding media, precision ceramic parts and inert ceramic balls (catalyst bed support media).

Please check our blog web for more info about our products:

https://aluminaceramics.wordpress.com

If you are looking for an alternative supplier, we will be your choice.

Hope to work with you in the near future.

Best Regards,

Zhang Hongbo

Sales Manager

Qingdao CBC Co.,Ltd.

Suite 1006 Building No. 2 Celebrity International,

No. 39 Shiling Road, Laoshan Dist.,

Qingdao, China 266062

T: +86 532 8596 8596

F: +86 532 8596 8595

www.cbcceramics.com ■

Wear resistant ceramic lining – Alumina, zirconia & ZTA

Ceramic grinding media – alumina & zirconia

Steel & rubber backed ceramic plate

Pulley lagging

https://aluminaceramics.wordpress.com/ ■

Dear sir,

I can suggest you one alternate solution.

Sir you may provide liner less chute(wear resistant material diffused over mother plate through welding deposits or diffusion welded(cast weld))

We have installed one such chute at one of our transfer point having heigh of fall of 6m and capacity 1200 tph. We are also in process two other such chutes.

We had installed at 2 years back and still no signs of wear.

Also one big problem of rip cup of steel cord belt conveyor due to stuck up of liner plates in receiving hoods got solved. ■

Increasing hardness for reducing wear of shute line is unlikely to help as edges of broken glass are as hard.

Have you tried soft rubber or ultra high molecular weight polymer liners? If these have also not worked - stone box construction at impact points is the best solution. The stone boxes can be created by fixing hrizontal barriers along the flow direction of cullets. The space between barriers gets filled with cullets. Only edges of barriers get exposed to flow of material.

Vinayak Sathe.- vinayak.sathe@gmail.com ■

Dear ALL,

For the application of glass cullet chute liners all of the suggestions so far are inadequate for success.

You must without doubt have a lining of Ceramic.

You must check on the impact area from the belt discharge and

run off areas/patterns on the chute outlet.

There are different grades and thickness of Alumina tiles

which will solve your problem.

If you match carefully the grade and thickness you will expect

15/20 times better life than Hardox or any other Q.T. plate

liner.

We have made numerous installations replacing metalic liners

with great success. ■

Dear Shri Talreja,

You have not mentioned the size of the cullets. Possibly these may not be of big size creating difficulty of flow in chute. Very long time back, I was working in a glass factory and we were first breaking such glass cullet into small size.

The chute design should be made such that the material is falling vertically and its horizontal movement by material accumulated on stone box (shelf) In my opinion such arrangement shall give satisfactory life. Therefore, proper design of the chute is very important alongwith the appropriate liner material.

Possibly rubber liners are good when it has to take severe impact i.e. when handling big size lumps. UHMW liners have very low friction coefficient but possibly they may not suit severe abrasive action of glass cullet.

Certain Indian iron ore is extremely abrasive material, and NMDC is successfully dealing with this material by creating a chute where material is practically not sliding on the chute wall, but it is falling and sliding on the material layer, for horizontal movement.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25882916 ■

From my experience UHMW Polyethylene is not a good choice where material is impacting it. The surface is easily 'cut' by the impact increasing the coefficient of friction.

Stone boxes/dirt boxes can be very effective especially with materials that are non-cohesive and non-adhesive.

To make a correct choice in the case of conveyor transfer chutes it is important to know the trajectory of the material and how it impinges on the chutework. ■