waste heat boiler system for reheating furnace

Explosion-proof door structure: waste heat boiler system for reheating furnace blast doors have Slat (also indemnity for the swing) and blasting membrane two kinds. Slat blast doors, also known as swing-proof door, multi-device to the furnace wall of the combustion chamber. Into its mounted position is inclined and vertical two, by the door, the door and the hinge member and the like components. The door frame and multi-cast iron round or square, the width of their mutual contact surface generally is 3 ~ 5mm, and should ensure tight. The door is coated with a heat-resistant concrete, which limit the pressure according to a desired thickness value has been calculated or determined experimentally. When the gas explosion in the furnace or the flue of the boiler, the door is automatically turned about the shaft relief, and then shuts itself down. Sealing pressure of the vent door from the inclination angle (usually not more than 30 °) or the downward pressure created by the weight of a weight is obtained.

As the largest waste heat boiler system for reheating furnace manufacturer in mid china,ZG cooperated with the world bank to be the production base of the high efficient and energy saving boiler. Furthermore, ZG has the license to design and produce boiler and pressure vessel.

Difference pressure hot water waste heat boiler system for reheating furnace and pressure hot water boiler (1) boiler pressure hot water boiler heating system is pressure equipment, with a risk of explosion. The boiler pressure hot water boiler heating system is not under pressure, always open to the atmosphere so that the boiler will not explode in any case, good safety performance. (2) pressure hot water boiler is full of water, there is no level control problem. Pressure hot water boiler water level control problems. The boiler drum is full of water, still connected to the top of the box opening, there is still water level control problems. (3) pressure hot water boiler to be fitted with a pressure gauge, safety valve and thermometer, because the boiler always is full of water, so no water level, water level gauge and thermometer and only pressure hot water boiler, boiler and air because the same, the pot is always pressure to atmospheric pressure, there is no danger of explosion, it is not necessary to install a safety valve, pressure gauge can not be installed. Circulating pump (4) pressure hot water boiler heating system is sent to the return pumping systems engineering boiler, water pump is generally used. It has to overcome the resistance of the systemic circulation, but also to maintain a certain pressure boilers, boiler water at high temperature to ensure that no vaporization. The boiler circulating pump water heating system pressure is pumped from the boiler, the heat pump is the pump that functions to overcome the resistance of the system, mainly to overcome the resistance of the valve regulating backwater. (5) Supply of low pressure hot water boiler not only water, but also for high-temperature water. Pressure hot water boiler can supply the low-temperature water of less than 100 deg.] C.

In early 2013, fast waste heat boiler system for reheating furnace is a food processing company Luohe a 10-ton condensing steam boiler installed integrally cloud service monitoring module, by monitoring the data found in March, the maximum pressure in the boiler set small deviation, the small boiler load adjustment range, and it uses a continuous replenishment way. When such a large load changes, the burner will start and stop frequently, adversely affect the boiler. After the burner system to monitor working properly, timely communication with customers, to help customers put pressure adjusted to the maximum deviation of the normal range. Then return to the display data safe range, the maximum starting frequency is reduced to the burner 4 times / hour from 8 times / hour, reduced by the mean starting frequency of 3.7 times / hr 1 / hr reported in June. At the same time gas consumption decreased by 10% to obtain the customer's trust and recognition.

Waste Heat Reduction and Recovery for Improving Furnace

Use of a waste heat boiler to recover part of the exhaust gas heat is an option for plants that need a source of steam or hot water. The waste heat boiler is similar to con- ventional boilers with one exception: it is heated by the exhaust gas stream from a process furnace instead of its own burner.

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US4858562A - Reheat type waste heat recovery boiler and power

A steam turbine system incorporates a reheat turbine and a high pressure turbine to which the vapor is supplied from the waste heat recovery boiler, with a generator being driven by the steam turbine system and condenser for condensing vapor from the stream turbine system into condensate and for supplying the condensate to the waste heat recovery boiler as the feed water. The waste heat recovery boiler is provided with a secondary reheater, a super heater, a primary reheater reheating vapor

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Waste-Heat Boiler | Article about Waste-Heat Boiler by The

The temperature of gases entering a waste-heat boiler is 350°-400°C (in the case of a boiler installed behind an internal-combustion engine) to 900°1500°C (if it is installed behind a reverberatory or refining furnace or a cement kiln). Large waste-heat boilers are equipped with all components of a boiler unit, with the exception of the firebox and other equipment associated with fuel combustion.

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Reheat Boiler, Reheat Boiler Suppliers and Manufacturers at

A wide variety of reheat boiler options are available to you, such as industrial, power station. You can also choose from horizontal, vertical. As well as from low pressure, high pressure. And whether reheat boiler is fire tube, or water tube. There are 321 reheat boiler suppliers, mainly located in Asia.

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Reheating furnaces

The heat recovery at reheating furnaces can be significantly increased by using additional waste heat recovery systems in the offgas downstream the recuperator. The off gas is cooled down to a set lower temperature in waste heat boilers before it is discharged to atmosphere via the downstream stack, so the energy is not wasted.

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Reheat Furnace - HarbisonWalker International

Reheat Furnace After cooling, the slab, bloom, or billet must be reheated and softened for the next forming operation (such as rolling, forging, or extrusion) by raising its temperature to a range of 1600°F to 2500°F.

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Converting Waste Heat to Useful Energy in Heating

Converting Waste Heat to Useful Energy in Heating, Ventilating and Air-Conditioning Systems Careful management of waste heat produced in the chilled water process of a Heating, Ventilation, and Air Conditioning (HVAC) system can yield significant savings in the energy cost of the building.

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Waste Heat Boiler - an overview | ScienceDirect Topics

The hot combustion products from the reaction furnace flow through the tubes of waste heat boiler (WHB) and are partially cooled to 600800 °F by generating high-pressure or medium-pressure steam. As the gases from the reaction furnace are cooled in the WHB, the S 2 sulfur vapor species shift through a number of exothermic reactions to other sulfur species, primarily S 6 and S 8 ( Goar and Fenderson, 1996 ).

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What is a Waste Heat Boiler? (with picture)

Nov 12, 2019 · In a reversal of the system inside a fire-tube boiler, waste heat, in the form of hot gases or furnace flames, surrounds the water-filled tubes. Insulating materials are used to protect the boiler tubes against flame damage. As well as tolerating high pressures, a water-tube waste heat boiler can respond quickly to changes in heat input.

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US20090035712A1 - Reheat Furnace System with Reduced Nitrogen

The steam may be supplied from a waste heat boiler. A reheat furnace system and heating process is provided. A hydrocarbon fuel and steam mix is supplied to a chemical recuperator that uses heat from the waste gas of the reheat furnace to produce preheated reformed fuel to the burners of the reheat furnace.

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Reheating furnaces in steel plants IspatGuru

Apr 13, 2013 · The energy efficiency of reheating furnace is usually defined as increase of steel stock heat content when heated from 10 deg C to 1200 deg C divided by the fuel energy (latent heat plus sensible heat) used for it.

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Assessment of energy efficiency in reheating furnace of a

Waste heat recovery The flue gases coming out from the reheating furnace contain substantive amount of heat energy which can be reused as. Load Preheating The billets are loaded in the furnace at ambient temperature, so heat is required for initial heating of that billets. This heat requirement can be fulfilled by the sensible heat going out of the

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Boiler Working Animation Steam Boilers, Waste Heat Boilers

Feb 23, 2013 · Explains with working animations steam boilers, waste heat boilers and thermal liquid heaters. Learn about boiler designs, advantages and disadvantages etc. These boilers are mainly used in

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Development of Next Generation Heating System for Scale Free

The technology can be applied to a new furnace application as well as retrofit design for conversion of existing steel reheating furnaces. The development work has resulted in the knowledge base that will enable the steel industry and steel forging industry us to reheat steel with 75% to 95% reduction in scale formation and associated energy savings during the reheating process.

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Waste heat recovery boiler - yoshimine.co.jp

incinerators, and generate steam or hot water, in addition these waste heat boilers have been recently appreciated as the global environmental protection merchandise. These waste gases often contain a large amount of dust, corrosiveness or explosive dangerous component, besides, often clog the gas duct by its strong tenacity. For this

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