How Vertical Grinding Mills Work (Coal Pulverizer Example)

Рет қаралды 80,230

Күн бұрын

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Learn about vertical grinding mills and coal pulverizers! We look at all of the vertical grinding mill’s main components, how it works and some of its design features. For this video, we assume the working material of the mill is coal i.e. the mill is a coal pulverizer.
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▶️Introduction
Vertical grinding mills are commonly used in the power generation, steel and cement industries. The power generation and steel industries use vertical mills for coal pulverization. There are other coal pulverizers available, but the vertical grinding mill has found widespread application due to its simple design and high efficiency.
Vertical Grinding Mill Components
Electric Motor
Grinding Rollers
Grinding Table
Gearbox
Classifier
Rockers
How Coal Pulverizers Work
Coal enters the mill and is fed to the grinding table. The grinding table rotates which throws the coal outwards towards the outer periphery of the table. The coal is then ground between stationary grinding rollers and the grinding table.
Some pulverized coal exits over the dam ring and is conveyed upwards pneumatically by the hot gas stream which enters at the base of the mill. Oversized coal is returned to the grinding table by a rotating classifier whilst correctly sized coal continues through the classifier and exits the mill through the discharge duct.
Coal Pulverizer Purpose
A coal pulverizer is designed to classify, dry and grind coal. It is beneficial to dry, grind and classify the coal prior to it entering the furnace as this gives much more efficient ignition and combustion. Coal pulverizers are a common site at many coal fired thermal power stations.
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Пікірлер: 55

@savree-3d 3 жыл бұрын

Want to continue learning about engineering with videos like this one? Then visit: courses.savree.com/ Want to teach/instruct with the 3D models shown in this video? Then visit: savree.com/en

@bowieterrance9513 3 жыл бұрын

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@mryoutubeperson7326 Жыл бұрын

This isn't a machine, this is a work of art

@devanshksharma 5 жыл бұрын

Awesome video man I just joined loesche gmbh the company which designs and erects VRM for coal and cement...i just passed my engineering (mechanical) last month and was in search for a video on mills like this.... Again thnx a lot gr8 job 👍👌

@sandeepjadhav8251 Жыл бұрын

Great quality of content. I am already binge watching your channel.

@savree-3d Жыл бұрын

Visit courses.savree.com please! Loads more there.

@clementasare5781 5 ай бұрын

Incredibly educative. I have always loved your comprehensive explanation to machines. Thanks always for the quality videos.

@savree-3d 5 ай бұрын

Thank you very much!

@sathishkannan9396 4 жыл бұрын

Simple & Easily understandable & helpful

@gabriels9091 3 жыл бұрын

Awesome! now it's very easy to understand how this type of mill works, congratulations on the video!

@savree-3d 3 жыл бұрын

Thank you very much!

@leytonsmith-8981 Жыл бұрын

Another excellent explanation!

@AnshulKeche 3 жыл бұрын

very informative video for application understanding of Coal Pulverizer. thank you.

@MistahShootrES 4 жыл бұрын

Thank you! I really understand the VRM now!

@samuelliao9216 3 жыл бұрын

We offer customized ultrafine grinding mills system and coated machines for caco3/dolomite/talc/gypsum/limestone/calcite/calcium oxide/ bentonite/dolomite powder 1.325mesh~3500mesh, finished powder fineness is adjustable. 2.Built-in air classifier, higher classifiying accuracy, powder narrow particle size distribution, better powder quality 3.lower energy-consumption, higher outpout(for same install capacity, 200~300Kg/hour) 4.PLC control, simple operation: 1. Low voltage components: Schneider 2. VF/Soft Start: ABB 3. PLC Controller: SIMENS 5.No Dust when producing Samuel Web:www.lymill.com/show_19.htmlm MP/Wechat/Whatsapp: +86 15105956429 Email:Samuel@lymill.com

@MenzelMotors 3 жыл бұрын

This inspiring software, the calm and clear way you explain it is just great.

@samuelliao9216 3 жыл бұрын

@akshat_kasana 4 жыл бұрын

Amazing 3D model and clear explanation. Suggestion: make a video on air-dampers used in Coilover shocks

@samuelliao9216 3 жыл бұрын

@nagulavanchasubrahmanyam8430 3 жыл бұрын

Good Demonstration

@vijayakumarkodumuri2225 4 жыл бұрын

It's a great work..👍👍👌👌

@pambudibaguswidodo9768 Жыл бұрын

very useful.. thanks

@asogaper 2 жыл бұрын

This stuff scratches a really unique itch for me. I'm a chemical engineer and in my free time I like to code on hobby projects (Python etc) and play city/factory building games. The satisfaction of seeing 'inside' some big machine and realising the ingenuity that went into its design is probably one of the things I enjoy most. The crushing table/upwards draft design with the classifier on top seems so much more elegant than our refinery's hammer mills and separate classifiers, but I'm no expert!

@absormin 4 жыл бұрын

Thank you!

@blindy88 4 жыл бұрын

saVRee 3D hi, I run one of these, however we grind gypsum, we are experiencing an issue whereby the mill is rejecting a lot of material out the bottom, can you have explain why this scenario might be occurring? Many thanks

@gsonnet911 Жыл бұрын

very good

@jorgeprieto9581 6 ай бұрын

Thank you, we need more information about vertical grinding mills to use in a thermal plant with 3 units 12 coal pulverized mills Raimond a and babcok do you have spare parts .

@tayyabjigr7344 4 жыл бұрын

Hi sir Very helpful your channel plz make some videos on Dolo lime kiln or limestone kiln and Roller mills of quick lime... Thank.

@arunprasad1875 4 жыл бұрын

good job

@samuelliao9216 3 жыл бұрын

@gaztronengineeringpvtltd-n7856 4 жыл бұрын

Good understanding video, Gaztron engineering Pvt Ltd from INDIA is designing and Manufacturing of Nitrogen Inertization system for Coal Mill

@ftmcrusherbriquettemachine2584 3 жыл бұрын

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@sachinjain356 4 жыл бұрын

Very helpful video sir. Could you please tell can we grind clinker and flyash together in coal Pulverizer mill and make cement using the same mill as well ?

@samuelliao9216 3 жыл бұрын

@khariramakrishna3615 2 жыл бұрын

Can we restart the Mill immediately after stop/trip.

@tomdemabataba-agamah723 2 жыл бұрын

Ce serait extraodinaire d'avoir cette video en Français Please, can I have a video in French?

@hariraghav1896 4 жыл бұрын

Can you make a video on clinker kiln and preheater?

@samuelliao9216 3 жыл бұрын

We offer customized ultrafine grinding mills system and coated machines for caco3/dolomite/talc/gypsum/limestone/calcite/calcium oxide/ bentonite/dolomite/kaolin/clay powder 1.325mesh~4000mesh, finished powder fineness is adjustable. 2.Built-in air classifier, higher classifiying accuracy, powder narrow particle size distribution, better powder quality 3.lower energy-consumption, higher outpout(for same install capacity, 200~300Kg/hour) 4.PLC control, simple operation: 1. Low voltage components: Schneider 2. VF/Soft Start: ABB 3. PLC Controller: SIMENS 5.No Dust when producing Samuel Web:www.lymill.com/show_19.htmlm MP/Wechat/Whatsapp: +86 15105956429 Email: Samuel@lymill.com

@samuelliao9216 3 жыл бұрын