Product Description

 Waste Heat Boiler Introduction
A,   Cement Kiln Waste Heat Boiler
B,   Glass Smelting Furnace Waste Heat Boiler
C,   Sintering Waste Heat Boiler
D,   Carbide Waste Heat Boiler
E,   Other Waste Heat Boiler

A,  Cement Kiln Waste Heat Boiler

1.   Working principles and basic components
1.1 Source of Cement Kiln Waste Heat)
   The heat source of pure low temperature waste heat power system comes from 2 parts:
   Waste gas produced by the preheater in kiln tail preheats raw meal；
   Hot air produced by cooling  machine in kiln head cools clinker.
Cement rotary kiln that has suspension preheater
1.2  Waste heat smoke features
  1)   Low temperature of smoke <**0
  2)   Obvious features of dusts; lots of ash, fine particles
  3)   There are fluctuations in two kinds of thermal temperature and flow.
      Waste gas in kiln rear：relatively stable when little changed occurred in production
      Waste gas in kiln head：fluctuated with processes, heat source is unstable.
1.3  Cement Kiln Waste Heat Power System
2.  Boiler structure and features
2.1   Boiler structure
Vertical positoned boiler
Smoke comes in from upside and comes out from down side
      AQC Boiler
         SP Boiler
2.2   Products Series:
***0t/d
AQC Boiler:QC**0/*****1.7(4.5)*1.6/**0(0.*5/**5)
SP Boiler: QC**5/*****3.**1.6/**0
***0t/d
AQC Boiler:QC**0/*****3(6.6)*1.6/**0(0.*5/**5)
SP Boiler: QC**0/*****1.**1.6/**0
2.3  Main characters of boiler
1   The smoke of kiln rear contains a lot of dusts; the amount of smoke is *0~**0g/Nm3.Small dusts may easily deposited on the heating surface of boiler, thus reduce the output of boiler and its generated energy. As a result, dusts deposition of the heating surface is a basic problem that needs to solve. Light tube is usually used, and mechanical vibration, Is used to remove ash.
2    Waste amount of kiln head<*0 g/Nm3，main dust is  clinker dust, which is hard and seriously tear the heating surface. Spiral finned tube and  low speed of smoke structure are usually used.
3    Air leakage will reduce the thermal efficiency of system  induced draft fan and boiler.so, to solve the air leakage problem is the key are to use waste heat. Boiler body usually use whole steel structure of guard plate.

B,   Glass Smelting Furnace Waste Heat Boiler
1. Working principles and basic components
1.1 The classification of Glass Smelting Furnace
According to heat source,kilns are divided into 3 class:
a   Flame kiln 。Use fuel combustion as heat source.
b   electric heating kiln。 Use electricity as heat source.
c   Flame - electric heating kiln.  Use fuel combustion as main heat source, and electricity as auxiliary heat source.
According to the scale,kilns are divided into 3 class:
a    Large kiln。Glass melt is produced **0t/day above.
b    Middle sized kiln 。 Glass melt is produced *0~**0t /day.
c    Small kiln 。 Glass melt is produced less than *0t/day.
1.2  Production Process of Glass Smelting Furnace
Glass Smelting Furnace uses heat storage high temperature air combustion technology：
— The right and left side of every Glass Smelting Furnace sets one  regenerator；
—use commutation combustion mode, direction is changed every *0 minutes；
—Cooled or heated smoke and air alternatively passed through regenerator
—Heated air is sent to Glass Smelting Furnace ，and participated in combustion
—Cooled smoke leaves regenerator to general flue, then exhausted to chimney
1.3  Waste heat utilization process of Glass Smelting Furnace
1.4  Process chart of waste heat power system in Glass Smelting Furnace
2. Boiler structure and features
2.1 Boiler structure
2.2   Products Series
**0t/d:  Q*0/*****0.***1.*7/**0
**0t/d:       Q*4/****5.***1.*6/**0
**0t/d:       Q*9/****3.**1.*6/**0
2.3 Main characters of boiler
    To improve the performance of boilers, some efficient measures are used:
1   To reduce the  air leakage coefficient and to ensure the stability of glass production system, whole sealing is used; light metal guard plates are used in furnace; carefully deal with the sealed areas, such as manhole, wall pipes, joint of guard plate.
2   Use thermodynamic calculation and hydrodynamic calculation collaboratively optimize the heating surface of evaporator.
3     According to the features of smoke that is from the Glass Smelting Furnace Waste Heat Boiler，use a combination of steam + hot water spraying ensure the soot blowing effect
4   According to the features of Glass Smelting Furnace，proper ash pollution  coefficients are designed , and adequate heating areas are laid out to ensure the output of boiler.
5    Because sulfur is contented in the smoke, economizer is stagingly laid out. Low temperature section uses dewpoint corrosion proof material-ND steel，which is conducive to the future maintenance and replacement.
6       smooth tube or membrane type tube structure is used in heating surface
7       Modularization of heating surface shorten the assembly period at work sites

C,  Sintering Waste Heat Boiler
1.  Working principles and basic components
1.1   Waste heat produced in the process of Sintering
       Sintering is the preparatory process before putting blast furnace materials into the furnace. There are two process-  bulk Sintering and round Sintering, both Sintering require lots of energy. According to statistics，the energy consumption of Sintering accounted for *2% of the total consumption, and the waste heat accounted for *9% of the total heat consumption. It is extremely important to recycle and use these waste heat. Waste heat recycling mainly used in Sintering machine and belt cooler.
1.2    Recycle Process of     Sintering waste heat  
2.  Boiler structure  and features
2.1  Boiler structure
2.2  Main characters of boiler
1   Boiler use a full-sealed structure to reduce air leakage & heat loss and to enhance the efficiency of generated power.
2      Spiral finned tube are used on the heating surface to strengthen the heat exchanging and reduce the area of boiler.
3   Use acoustic wave to remove ash, and achieve obvious effect.

D,  Carbide Waste Heat Boiler
1.  Working principles and basic components
1.1  Source of Carbide waste heat
                Carbide is one of the basic raw materials in the organic synthesis chemical industry，and it is the main raw material in ethyne chemical industry.
        Producing Carbide usually use electrothermal method, which means quick lime and carbonaceous materials(coke,  anthracite or petroleum coke) are put in Carbide furnace, and produce Carbide under the arc high temperature melting reaction. CO(carbon monoxide) caused by the reaction is burned in Waste Heat Boiler.
2.  Boiler structure   and features
2.1  Boiler structure
2.2  Main characters of boiler
1   Effectively solutes the ash deposition problem of the heating surface 
2   Selects the appropriate burner to ensure stable combustion and a strong ability to load regulation.
3   Safe and reliable operation of boiler, easy to operate, and long cycle of continuous operation.

E,  Other Waste Heat Boiler
             Tracking on Waste Heat Boiler market, we have developed Other Waste Heat Boiler, such as : Ferrosilicon Waste Heat Boiler, Pyrite Waste Heat Boiler, Zinc Concentrate Waste Heat Boiler,  Gas Production of Chemical Fertilizer Waste Heat Boiler,  Electric Furnace Waste Heat Boiler etc., and have won the praise of users.
Electric Furnace Waste Heat Boiler
Suits for the utilization of waste heat by steel making electric furnace
Zinc Concentrate Waste Heat Boiler
Waste Heat Utilization of zinc smelting
Gas Production of Chemical Fertilizer Waste Heat Boiler