Arrangement in recovery boiler - Patent 1188986
Arrangement in recovery boiler - Patent 1188986
Configuration of Evaporators for Once-Through Heat
May 21, 2019 · Abstract Various designs are examined of evaporators for horizontal or vertical once-through heat recovery steam generators (HRSG) of combined-cycle units. Special attention is given to the Benson boilers manufactured by Siemens, which are most widely used now. Vertical HRSG with evaporators having horizontal heating surface sections are also analyzed. …
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Gas flow analysis in a Kraft recovery boiler - stuba.sk
used in boiler operations, the boilers capacity and the dry solids content have been increasing and their negative effects have been becomemoreimportant.So,worksstudyingNO X emissions[23],fume Fig. 1. Kraft recovery boiler; detailed view from a pulp and a paper mill. Source: Flávio Paolielio [6].
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US Patent for Arrangement in recovery boiler Patent
May 06, 2019 · The invention relates to an arrangement in a recovery boiler into which spent liquor to be incinerated and combustion air are supplied, the arrangement comprising superheaters (4a-4d) in the upper part of the recovery boiler for recovering heat, at least one boiler bank (11) located in a flue gas duct part (10a) known as the second pass, immediately …
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Gas flow analysis in a Kraft recovery boiler - stuba.sk
used in boiler operations, the boilers capacity and the dry solids content have been increasing and their negative effects have been becomemoreimportant.So,worksstudyingNO X emissions[23],fume Fig. 1. Kraft recovery boiler; detailed view from a pulp and a paper mill. Source: Flávio Paolielio [6].
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HEAT RECOVERY SURFACES ARRANGEMENT IN A RECOVERY BOILER
An arrangement in a recovery boiler having a furnace for combusting waste liquor and a flue gas duct comprising vertical flue gas channels, at least part of which is provided with heat recovery units for recovering heat from flue gases. The heat recovery units have a width of substantially the width of the flue gas duct, whereby downstream of the furnace the first flue gas channel is …
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Arrangement in recovery boiler - KVAERNER POWER OY.
United States Patent Application 20060249098 . Kind Code: A1 . Abstract: The invention relates to an arrangement in a recovery boiler, into which spent liquor to be combusted and combustion air are fed, the arrangement comprising superheaters in the upper part of the recovery boiler for recovering heat.
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Recovery Boiler Air Systems - TAPPI
• Arrangement is optimized by CFD and combustion modeling • Performance is demonstrated by field testing and operating experience Slide 22 Air System Operating Problems • Air delivery systems are inflexible – ΔP proportional to square of flow – Limits recovery boiler turndown – Port velocity control dampers increase flexibility
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Arrangement and method in soda recovery boiler
Aug 18, 2020 · An arrangement and a method in a soda recovery boiler. The soda recovery boiler comprises a second pass which is provided with at least one superheater and a second pass ash hopper, a front and/or rear wall of the ash hopper being connected to steam circulation of the soda recovery boiler.
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Arrangement in recovery boiler - MyScienceWork
Arrangement in recovery boiler: The invention relates to an arrang. The invention relates to an arrangement in a recovery boiler, into which spent liquor to be combusted and combustion air are fed, the arrangement comprising superheaters (4a-4d) in the upper part of the recovery boiler for recovering heat.
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Boiler-recovery unit
Boiler-recovery unit F22B37/48 - Devices or arrangements for removing water, minerals, or sludge from boilers (cleaning water tubes, furnace tubes, or the like of boilers F23J, F28G) F22B1/18 - the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines (use of waste heat of combustion engines, in general
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Waste heat boiler and steam superheater system (Patent
The invention discloses a waste heat recovery boiler apparatus for generating steam by utilizing the heat of exhaust gases of a gas turbine machine, comprising a passage connected at one end thereof to the gas turbine machine, said exhaust gases passing through said passage, a fuel economizer arranged in the passage for preheating feed water, an evaporator arranged in said …
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4-1 Recovery Boiler Equipment and Operation - TAPPI
recovery boilers are single-drum design Superheater Usually several banks with various arrangements of steam flow vs. gas flow May have interstage attemporation Tube backspacing in bank may be tangent or spaced Various support arrangements at roof or headers
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Manufacturing Companies 10 Ton Biomass Boiler Belarus
Hot Water Boiler Manufacturers 10t Belarus. 10t Automatic Gas Steam Boilers Afghanistan - Diesel Boiler Agent 10t Coal Fired Hot Water Boiler Belarus. 10t h coal steam boiler Pakistan. h steam Pakistan Commercial Steam Tajikistan Listings 1 - 20 of 52 GENERATOR 15 MW 75 bar Steam turbine /h 25 bar 10 bar 5 YLW YY(Q)L thermal oil oil or gas oil 2ton Steam Exporters …
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4-4 Recovery Boiler Chemical Principles - TAPPI
A black liquor recovery boiler has two main functions. On one hand, it generates steam from the heat energy liberated upon combustion of the organic constituents of black liquor burned in the boiler, whereby the recovery boiler serves as a steam boiler. On the other hand, the chemicals from pulp digesting - sulphur and sodium - are recovered
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Arrangement in recovery boiler - Kvaerner Power Oy
United States Patent 7434543 . Abstract: The invention relates to an arrangement in a recovery boiler, into which spent liquor to be combusted and combustion air are fed, the arrangement comprising superheaters in the upper part of the recovery boiler for recovering heat. Instead of screen tubes the invention is provided with a superheater
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Industrial boiler blowdown heat recovery (Conference
@article{osti_5924004, title = {Industrial boiler blowdown heat recovery}, author = {Bary, M R}, abstractNote = {Blowdown of boiler drum water is necessary to maintain the solids concentration in the drum within a specified limit. Industrial plant efficiency can be increased by recovering heat otherwise wasted during blowdown. The design, performance, and economics of heat recovery …
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United States Patent 4,979,820 - CORE
and photocell arrangement at the transmitting end. The arrangement is sensitive enough to pick up ordinary speech sounds. The advantage of this system for use in recovery boilers is that the laser microphone senses sound all along the length of the laser beams. The laser and retro- In FIG. 2, the two beams overlap at the laser spot 15
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Thermal energy recovery from high-temperature blast
Dec 01, 2015 · The recovery efficiency of the experimental gravity bed boiler was calculated as follows: (4) R boiler = c w q v, w ρ w T w, out − T w, in c s m T s, in − T s, out. The heat recovery efficiency for the entire thermal energy recovery system can be expressed by Eq. (5): (5) R entire = c w q v, w ρ w T w, out − T w, in c s m T s − T r e
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WO1998043017A1 - Recovery boiler for - …
A recovery boiler is provided that may be made larger than conventional soda recovery boilers which burn black liquor to produce energy and to recover chemicals for the kraft pulping process, by providing a particular substantially rectangular configuration of the furnace of the boiler. The ratio of the depth (defined by the side walls) and the width (defined by the front or rear wall) of …
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Coking Waste Heat Boiler - Research Papers - Zgboiler2015
Jul 29, 2015 · The layout of the boiler is classified into two types: the traditional, horizontal type and the mew vertical type, among which the vertical layout of boiler has novel structure and advanced property. It is a new patent of waste heat boiler for the waste gas of coking exclusively developed by our company.
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US5299534A - Single-drum recovery boiler - Google Patents
A single-drum recovery boiler comprising a superheater (2), boiler bank elements (3a) forming a boiler bank, and elements (3b) forming an economizer. In the recovery boiler, a plurality of boiler bank elements (3a) and economizer elements (3b) are disposed alternately so that a boiler bank--economizer unit (3) is achieved where the ratio between the boiler bank elements and the …
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