White liquor preparation | Flowserve - NAF Control Valves

The lime kiln is a large, horizontal steel cylinder with a diameter of 2-4 meters and a length of 40-120 meters. The cylinder rotates at 1-3 revolutions per minute with a slope of 2-30 towards the burner. Some of the most difficult applications for valves are found in the white liquor plant. The green liquor is very erosive and has a strong

Valmet Lime Kiln Optimizer

Features. Fuzzy logic controls detect process changes and adjust mud filter speed, dry solids and excess oxygen level to maintain stable reburned lime quality. Residual carbonate analysis combined with fuzzy control algorithms is used in fuel flow control to optimize specific energy consumption of the process

The TECO Process Control Blog: valves

The green liquor is first transferred to a slaker tank, where Ca0 from the lime kiln reacts with water to form calcium hydroxide (Ca(OH)2). From the slake, liquor flows through a series of agitated tanks, referred to as causticizers, that allow the causticizing reaction to go to completion (i.e., Ca(OH)2 reacts with Na2CO3 to form NaOH and CaCO3)

2-1 Recausticizing - Principles & Practice

LIME MUD PRECOAT DISC FILTER Photo courtesy of Dorr-Oliver Eimco LIME MUD FILTER PROBLEMS • HIGH MOISTURE IN KILN FEED – Over Liming, Fresh Lime, Dregs, Overloaded • FREQUENT PRECOAT CHANGES – Blinding of Precoat • Over Liming, Fresh Lime, Dregs, Wash Water • HIGH SODA IN KILN FEED – Cake Wash, High Moisture • TRS EMISSIONS FROM

Materials Handled: Dry Material Handling Valves: Plattco

Plattco built its reputation on reliable, resilient valves that tackle the toughest conditions of materials handling. Whether you have a highly-abrasive, high-temperature dry material or a simple dust collector application, there is no better choice than Plattco double flap airlock valves. Top Materials Handled. Cement: CKD, finish cement, raw meal

Mass and energy balances over the lime kiln in a kraft

The purpose of this thesis is to create a model of the lime kiln that performs mass- and energy balances over the process. This model is to be integrated in the WinGEMS software that is used to simulate mill systems in the pulping industry. There is an existing lime kiln block in WinGEMS but since has proven inadequate and in need of replacement

Kiln burners - Metso Outotec

The Metso Outotec combustion system is designed with the flexibility to suit the following specific kiln firing applications: Wide selection of components including burner, primary air fan, fuel valve trains, pumps and heater sets, flame management system with panel. Single or multiple fuels. Steam or mechanical fuel oil atomization

Custom Goggle Valve Design & Manufacturing | Air Handlin

Goggle Valve Design & Manufacturing ProcessBarron manufactures, repairs and rebuilds “man safe” automated goggle valves for pulp and paper mills, steel mills, as well as chemical and petrochemical refineries.ProcessBarron can engineer goggle valves with diameters anywhere between 20 to 72 inches, depending on the industry and application

Rotary valves for flow control and shut-off | FLSmidth

The Rotary Flow Control Valve delivers precise and continuous adjustment of the bulk material flow from bins and silos. The Rotary Shut-off Valve is used where quick and reliable shut-off is necessary. The two valves are suitable for material flows from 10 to 1000 m /h and temperature resistant up to 200˚C

Stacks & Ductwork | Warren Environmental

Stacks & Ductwork. &. Warren has sold over 500 Stacks in the Southeast the past 50 years and counting. Applications include General Exhaust Stacks, Bark Boiler Stacks, Recovery Boiler Stacks, Lime Kiln Stacks, Scrubber Stacks, Baghouse Stacks, Kiln Stacks, Furnace Stacks, Package Boiler Stacks, Foundry Stacks, Steel Mill Stacks, Chemical Plant

Rotary valves for pneumatic conveying | FLSmidth

Our range of rotary valves is designed for use in all industrial areas in which powdery bulk materials are processed, conveyed, stored, distributed, weighed or metered. Our metric series feeders / rotary airlocks combine many essential features in a single unit, helping to maximise the performance and dependability of a pneumatic conveying system

Butterfly Valves - Metso Automation - PDF Catalogs

Open the catalog to page 9. SERIES 815 ANSI CLASS 150 AND SERIES 830 ANSI CLASS 300 WAFER-SPHERE HIGH PERFORMANCE BUTTERFLY VALVESW101-6EN S 262729 X 8 7 41 6 PGK E FD L = Nominal Bolt Size M = Number of Holes 10417 211 8964 5553 151418 54 Minimum IDfor Disc Clearance 56555354 56 16 43 6 64 53213 AB EYC ValveApproximate Dimensions inchesApprox

Cement Rotary Kiln - Rotary Kiln - Rotary Kiln

Cement rotary kilns refer to cement rotary calcining kilns (sometimes called rotary furnaces). It is a pyroprocessing device used to heat materials to high temperatures in a continuous process. The kiln body is a cylinder vessel with a certain degree of tilt to the horizontal level. Raw materials are fed into the vessel from the upper end and

Valve Selection for Lime Slurry Service | Pumps &

Sep 26, 2013 Gate valves or knife gates can be used in slurry service. With many gate valves, end users must be willing to sacrifice tight shut-off when they are used in lime slurry. Most gate valves have a wedge in which the gate is forced to close the valve. Knife gate valves have a sharpened edge to improve the ability to cut through solid particles

Valves for Abrasive Slurry: Rubber Lined Pinch Valves

The wet cement production process involves a slurry of lime, stones and water fed into a kiln. The slurry is typically 65 – 70% solids. Therefore, valves for abrasive slurry in wet cement plants must be capable of handling abrasive flows

PRF Lime Kilns Valves & Compact Modules

Oct 06, 2017 Recently, FSESB was awarded the fabrication of a set of 600tpd Lime Kiln Valves c/w packing and stuffing for delivery to JSW Steel Limited, India in the 1st quarter of 2017

Mid-Kiln Valves - AFS Technology

An actuator cam, typically mounted above the kiln, to open the Mid kiln valve at the proper position. A fuel chute on the Mid-kiln valve A Pivot-type bottom gate on the Mid-kiln valve made of a high temperature alloy supported with two high temperature graphite pillow block bearings

Considerations for Selecting Valves for Lime Slurry

Mar 01, 2007 Considerations for Selecting Valves for Lime Slurry Service. March 1, 2007. Lime is widely used in the municipal water industry and can be very