Cost of fire tube boiler

ZG Boiler is fire tube boiler manufacturer with 70 years history, providing good quality and price for boiler.

What is fire tube boiler
The exhaust gas which is produced after fuel burst following through fire box or fire tube heat the fire box or water and steam mixture, which is called fire tube boiler. And the fire tube boiler is also called shell boiler. A little cylinder, pipe (what is called fire tube), other shell body (what is called boiler furnace) compose of the basic structure of the big cylinder in the fire tube boiler. The interlayer which is formed by fire tube and big cylinder fills water, the fire tube and the boiler furnace containing flame and exhaust gas as burst chamber and funnel.

Advantages of fire tube boiler
The advantages of fire tube boiler are following. It has big volume, strong heat storage capacity and simple structure, installation and operation. But the fire tube boiler has weak evaporation intensity low vapor pressure. The working conditions are bad because the boiler shell and internal components are heat up directly. Besides, the strength of boiler shell is weakened because of trapping and large storage. The vapor heating surface which lies out in the cylinder is called shell boiler or fire tube boiler.

Cost of fire tube boiler
The use and maintenance cost analysis of the fire tube boiler will be introduced in detail in the following. First, the fire tube boiler is not sensitive to the water quality. Conventional resin softening is pretty god without chemical medicine. Second, the structure of the fire tube boiler is reliable, and the operation and maintenance are convenient with long life. It has not booster hidden danger. Third, the boiler manufactures in China almost produce the fire tube boiler, the burners of which are Europe and America famous brands in common. And the purchase of fittings is convenient and fast, just because of this, the user cannot be strict by the fire tube manufactures.
http://www.zgindustrialboiler.com/Special_Reports/firetubeboiler.html
water tube boiler http://www.zgindustrialboiler.com/Special_Reports/water-tube-boiler.html

Gas oil hot water boiler control system

The gas oil fired hot water boiler main control components have two safety valves, two electrical contacts bimetal thermometer, a pressure gauge, electric contact to achieve the following main functions:
1, the temperature was raised to a certain value, the fire converted to a small fire, below a certain value, a small fire is converted to fire. (Can also be set when the temperature is raised to a certain value, the fire converted to stop the burner, and below a certain value, the burner starts automatically.)
2, the temperature rose to a certain value, the fire did not translate into a small fire continued to rise to a certain value, automatically turn off power to the burner shutdown, can check maintenance. Restart upon Troubleshooting.
3, if the system leak, reduce the pressure within the drum to a certain value, automatically turn on the replenishment of the supply pump to the system. Normal pressure, the water supply pump stops automatically.
4, if the system pressure is elevated more than a safety valve start pressure relief valve will open drainage pressure relief.
Circulation pump can be user the commissioned design institute chosen according to the system situation, its control is not included in the boiler control cabinet separately designed by the Design Institute, boiler control cabinet merger, also set up a separate control cabinet.
We as a leading industrial hot water boiler manufacturer, offering our clients with gas oil, coal, biomass, CFB, etc hot water boilers with different capacity range and fuel range. Price of gas oil boiler is welcomed to consult by visiting our website http://www.zgindustrialboiler.com/contact/inquiry/ and leave what you want!
http://www.zgboilers.com/Products/industrial-gas-oil-steam-boiler_1.html

Fire tube or water tube steam boilers in India

Steam boilers have a large market in India, because the biggest developing country, India is developing rapidly lately and amounts of large heavy equipment like industrial boilers are essential in country development. We are a steam boiler supplier and still have cooperated with Indian companies for a lot of times before.

Industrial steam boiler structure
An industrial steam boiler for sale is usually a one contains water along with a flame powered by oil, coal or gas. The boiler transfers heat in the flames for the water vessel, thereby turning water into steam. This steam exits the vessel a different option . pipe and is also transported to an alternative location where quite a few to clean up, to power equipment, to deliver heat or for a great many other functions. A closed boiler way is one in which totally with the steam is returned towards vessel available as water and reused. Closed boiler systems are efficient and fewer expensive to control. However, some industrial processes contaminate the steam and forestall it from being reused.

Fire tube or water tube steam boilers in India
There's 2 main forms of boilers for sale in India: fire tubes and water tubes. From the fire tube boiler, heat is directed through metal rods that go through the center of the stream vessel. The rods are arranged in banks hence the heat can pass through the vessel oftentimes before escaping over the chimney. The hearth tube system exposes the lake towards maximum level of heated surface plus affords the maximum level of water safe-keeping. Inside a water tube boiler, the warmth is directed through metal rods nearby the not in water vessel. Water tube boilers are vertical and discover the capability to create more units of steam each hour and as well provide less water storage than fire tube.
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biomass briquettes boiler manufacturer China

Biomass briquettes are a biofuel substitute to coal and charcoal. Briquettes are mostly used in the developing world, where cooking fuels are not as easily available. There has been a move to the use of briquettes in the developed world, where they are used to heat industrial boilers in order to produce electricity from steam. The briquettes are cofired with coal in order to create the heat supplied to the industrial biomass fired boiler.

China biomass briquette industrial boiler for sale features:
1. advanced technology and private intellectual property right
2. compact structure, light furnace wall, light weight and beautiful appearance
3. stable operation, easy adjustment, Powerful, high thermal efficiency
4. reasonable air distribution and flexible adjustment, it can be adjustable according to combustion conditions.
5. Biomass boiler itself has a dust removal function, reaching the demand of environmental protection
6. all-welded tube plate, no relaxation of the leakage.
7. distinctive modular design, easy to promote and reform
8. the usage of elastic element refines the stress state
9. complete in specifications, reaching the need of different thermal environment
10.biomass briquette wood pellet boiler make it widely fuel adaptable.

Biomass boiler manufacturer in China
As a leading manufacturer of boiler,ZG has provided comprehensive boiler and pressure vessel solutions for local and global market, which has passed the ASME certification and ISO certification long time ago. And as known for innovative environmental technology all over the world.With over 60 years of history in R&D and manufacturing of industrial biomass steam boiler, biomass hot water boiler, biomass power plant boiler, biomass CFB Boiler.
http://www.zgindustrialboiler.com/product/biomass-fired-boiler/list_5_1.html

water tube heat recovery boiler for steel processing

Steel material is the essential materials that used in economic and social development. Inside processing, a lot of flue gas are exhausted but you will discover waste heat that may be recycled as, for making full using waste heat, we recommend a water tube waste heat boiler for steel industry.

In the act of steel production, the action use of sintering processes is the reason for about 10% of total energy consumption, second and then iron-making processes, list inside the second place. Total energy consumption in the sintering process, nearly 50% on the thermal was emitted in to the atmosphere with the sensible heat kind of sintering flue gas plus a cooler.

The waste heat recovery of sinter cooler, is the latest number of power generation technology that through recycling flue gas heat of drop-tail ore wind box of sintering matching and sealed area of sintering cooler and waste heat boiler recover heat, combining with power generation technology of frigidity waste heat, using over hot steam of waste heat boiler to advertise Turbo generator with low parameters to figure.

The vertical water heat boiler produced by our company that used on flue gas heat of sintering cooler of iron and steel industry, successfully solved the fouling, wear, leakage problem of waste heat boiler. The employment of this sort of waste heat boilers is effective in reducing energy consumption of sintering processes, promote resource conservation reducing the system tariff of products to allow the enterprise to more competitive advantage.

Useful gas oil fired boiler blowdown precautions

Gas oil fired boiler is a popular dual fuel boiler that widely used in industrial production, 1 ton -25 ton gas oil fired steam boiler and hot water boiler we can supply is quality and good performance, however, during the water tube oil fired boiler blowdown is normal condition, but we need to know some useful gas oil fired boiler blowdown precautions.

1. the water tube gas fired steam boiler heat preservation of drainage tube and valve to keep in good condition, such as the valve is leaking, timely treatment, recovery heat preservation. It is very important. Don't ignore it.

2. boiler blowdown work regularly is very heavy, and has to drain 80 times switch valve. Large boiler taking time can be long, and poor working conditions, hot, fine ash, noise. But if the regular drainage is not strictly enforced, drain valve jam will appear.

3.blowdown more observation, open drain valve, the pipeline vibrate, frequency sound very bottom sharp air flow, pipe valves will be fever, without any response, explain impassibility. Should be marked, contact maintenance for processing.

The gas and oil Boiler manufactured by ZG Boiler are widely used in petrochemical, rubber, plastics, food, paper, textile, printing and dyeing, chemical, pharmaceutical and other industrial products processing required for steam, and also can be used in enterprise, hotels, guesthouses and other service industries for heating water and civilian using for steam and hot water.Our quality gas and oil boiler price can meet customer's demand.

25 ton water tube gas oil fired boiler supplier

25 ton gas oil fired boiler is a kind of typical “D”type layout water tube boiler. Which is composed of up and down drum, water cooling membrane wall, convection tube and economizer, and the burner is at the front wall. After the fuel is combusted in the furnace, the flue gas flows through the convection tube,economizer into the chimney.


25 ton water tube gas oil fired boiler main specification:
The rated capacity: 25/h
The rated steam temperature:t=193.5℃
The rated steam pressure:P=1.25MPa
The feeding water:tgs=104℃
The boiler efficiency:η=92%
The flue gas temperature:tpy=145℃

We are water tube gas oil boiler manufacturer, supplying 1 ton - 25 ton oil gas water tube boiler with the following characters:
1.This series boiler adopts double drums D type layout, has a compact structure and less occupation and a good degree of flame.
2.The boiler is supported by the low part,so the it can expanded to the upside freely.
3.The water cooling membrane wall of the furnace and the convection tube are both membrane wall structure, so the good seal ability can reduce the rafractory brick’s use and maintain.
4.The boiler is packaged by the compressed backplate with elegant appearance.
5.There is inspection hole for the convenience of use and maintain, and also there is two explode-proof doors.
6.This boiler is shop-assemble structure so as to short the period of installation.
7.There is insulation material layer at the outside
8.There is economizer at the tail part to make the flue gas temperature lower, so the heat efficiency is much higher.
9.The whole boiler is put on a strong base, it is convenient to the delivery.
10.There is enough heating surface and steam space so as to ensure the stability of the boiler.
11.It adopts automatic burner, which has a high combustion efficiency, and the burner has a ignition control system and super-pressure and flame out protection function.
12.The feeding water is controlled automatically, it has the high and low water level alarming and inter-lock protection function.
water tube gas oil fired steam boiler
http://www.zgboilers.com/Products/industrial-gas-oil-steam-boiler_1.html

manufacturer of water tube oil boiler in South Africa

We are a trusted name among the manufacturers of water tube boiler in South Africa. These high efficiency oil fired boilers for sale are designed as per industry standards, especially the ASME. Custom design as per specific requirements of the clients, and the oil fired water tube boiler can be availed at most reasonable prices in South Africa.


oil fired water tube boiler in South Africa
This water tube boiler manufactured by ZG burns fuel inside the furnace. This results in the creation of hot oil which works in heating up water that circulate through the unit’s tubes. And the designs for oil fired water tube boiler boast of around 2t -35t capacity based on customers’ requirements. In South Africa, the water tube oil boiler is essential in industries and the oil boiler for sale in ZG brand has won great reputation for its quality and excellent performance. The equipment is installed with water tube furnace that helps in increasing the heat transfer area of radiation and the perfect setting between oil furnace and the heat ensures minimal heat losses.

oil fired water tube boiler manufacturer in South Africa
ZG gas & oil fired water tube boilers have a wide market in South Africa and suit all industrial applications like Drugs & Pharmaceuticals Dyes Chemicals, Paper & pulp, Plywood, Food Industry, Dairy and other process industries.

fire tube boiler to visit http://www.zgindustrialboiler.com/news/company/Types-of-ZG-fire-tube-boilers.html

Waste heat recovery boiler system significance in the market

Waste heat recovery is the process of capturing heat discarded by a current industrial process and making use of that heat for other applications. Waste heat recovery involves capturing and reusing the waste heat on the industrial processes. The factors driving waste heat recovery market are increased rise in government regulatory requirement, increasing concern towards environmental protection, rising concern for energy prices, plus the reluctant by using waste heat management. The longer term opportunities for waste heat recovery systems are huge potential in developing a waste heat steam boiler that directly turns waste heat into treasure fuels.

Waste heat recovery boiler application area
Waste heat recovery boiler finds their usage in a variety of industries for example or more applications.
1.The chemical industry: three castoffs mixed burning boiler and blown gas waste heat boiler, sulfuric acid wast heat boiler, sodium dichromade rotary kiln waste heat boiler, etc.
2.The building materials industry: waste heat boiler of cement kiln, glass kiln waste heat boiler, brick and tile industry waste heat boiler, etc.
3.Non-ferrous metallurgy industry: carbon kiln waste heat boilers, submerged arc furnace industry waste heat boiler, calcium carbide furnace waste heat boiler, lead smelting waste heat boiler, copper smelting waste heat boiler, zinc smelting waste heat boiler, fuming furnace waste heat boiler, etc.
4.The iron and steel industry: sintering machine and cooling machine waste heat boiler, waste heat boiler of dry quenching, coking waste heat boiler, soaking furnace waste heat boiler, converter gas waste heat boiler, etc.
Other industries: waste heat boiler of hazardous waste, high-concentration waste liquid and medical waste incineration waste heat boiler, etc.

Waste heat recovery boiler system significance in the market
Enhancing process heat recovery efficiency provides significant and immediate cost benefits. The waste heat recovery boiler systems are utilized in several end-user in industries for instance petroleum refining, rock production, cement, chemical refining as well as other industries. The waste heat recovery market in cement market is likely to grow at a highest CAGR of 9.32% a result of the high demand from Asia-Pacific region.
Waste heat boilers to visit
http://www.zgindustrialboiler.com/product/waste-heat-boiler/list_6_1.html

HRSG or Waste Heat Recovery Boiler

HRSG or Heat Recovery Steam Generator
A Heat Recovery Steam Generator, or "HRSG" is a boiler that captures or recovers the exhaust of a prime mover such as a combustion turbine, natural gas or diesel engine to create steam.

Stated another way, a HRSG is used to recover energy from the hot exhaust gases in power generation. It is a bank of tubes that is mounted in the exhaust stack. Exhaust gases as much as 800 °F to 1200 °F heat these tubes. Water is pumped and circulated through the tubes and can be held under high pressure to temperatures of 370°F or higher which can be boiled to produce steam.

Furthermore, the HRSG separates the caustic compounds in the flue gases from the occupants and equipment that use the waste heat. HRSG's are found in may combined cycle power plants.

WHRB or Waste Heat Recovery Boiler
Waste heat recovery is the process of capturing heat discarded by a current industrial process and making use of that heat for other applications. Waste heat recovery involves capturing and reusing the waste heat on the industrial processes. Waste heat recovery boiler or HRSB boilers are used in many industries, such as steel and iron industry, cement plant, carbon rotary, glass industry, etc. And the factors driving waste heat recovery market are increased rise in government regulatory requirement, increasing concern towards environmental protection, rising concern for energy prices, plus the reluctant by using waste heat management. Anyway, the waste heat recovery boilers have huge potential in energy and heating market.

sinter cooler waste heat boiler
http://www.zgindustrialboiler.com/project/sinter-cooler-waste-heat-system-boiler.html

Water tube boiler manufacturer in China

We have been offering a wide-ranging range of supreme quality Water Tube Boilers to our clients. Industrial water tube boiler is a type of boiler through which water circulates in tubes that may be heated externally with the fire. The fuel is burned inside furnace, creating hot gas which heats water from the steam-generating tubes. It circulates water from the tube which is permitted to be heated by external fire source.

gas oil water tube boiler
The water tube gas oil boiler for sale is utilized in numerous industrial applications and is particularly highly acclaimed in national and international marketplace for its high efficiency and long service life. Precision engineered as outlined by set industrial benchmarks, these steam boilers are secure to work as a result of their foolproof and advanced security measures. The SZS series is double-drum and D type water tube boiler, natural gas, city gas, coke oven gas, blast furnace gas, light oil, heavy oil, diesel oil are the fuel available.

Chain grate water tube boilers for power
The chain grate boiler is equipped with light chain grate to realize mechanical feed coal, with air blower and induced draft fan to accomplish mechanical ventilation, and with screw slag machine to attain automatic slag discharge.Fuel, after falling onto furnace grate from coal scuttle, is fed in furnace tank along with furnace grate. Coal fired chain grate boiler, biomass fired chain grate boiler and corner tube chain grate boiler are classified as the main boiler types.

szl biomass water tube boiler http://www.zgindustrialboiler.com/product/biomass-fired-boiler/szl-type-assembly-water-tube-boiler.html

industrial hot water equipment--vacuum hot water boilers

In recent years, more and more countries ask for environment protection, ZG gas vacuum hot water boiler is complied with environmental requirements. Complete combustion of fuel, low dust emissions; Secondary combustion, effectively inhibited NOX generation; Burning low noise, low back pressure in chamber.

vacuum hot water boilers--industrial hot water equipment

Long lifespan: scaling does not occur inside the boiler to increase the life of the boiler, the boiler life is generally 1.5 to 2 times.Heat exchanger made of stainless steel tube manufacturing part, resistant to corrosion, the design life of more than 20 years.

Easy to maintain: adopt stainless steel tube heat exchanger, easy to remove the scale, take up less room, lower install cost.

Reliable and safety: the hot water boiler is working with negative pressure, and has many protection devices which ensure installment and maintenance easy and safe.

Environment protection: exhaust gas discharge accord with the country development and environment production policy.

High efficiency: ZG vacuum hot water boiler adopts wet back structure and the condensing device with spiral finned tube insures the efficiency up to 96%.


Vacuum boiler manufacturer in China
ZG is a reliable hot water boiler manufacturer, we have gas oil hot water boiler, waste heat hot water boiler, coal fired hot water boiler, biomass fired hot water boiler, cfb hot water boiler, anyway, we provide whatever you want! Interested to contact hnzzboiler@gamil.com or visit http://www.zgindustrialboiler.com

related vacuum boiler news here http://www.zgboilers.com/News/why-gas-fired-vacuum-hot-water-boiler-is-so-popular.html

What people can benefit from waste heat recovery system boilers

A recovery boiler is a power plant subsystem used to capture energy that would otherwise be lost in waste products that were not completely combusted. This energy is recycled to the primary energy generating system to produce more power. For this reason, this equipment may alternatively be referred to as a heat recovery boiler or as a waste heat recovery boiler. The main requirement for its use is that the system’s waste products have sufficient recoverable energy to drive the primary power generating equipment.Waste Heat Recovery Steam boilers may be used in the power systems for a variety of industrial equipment.

Waste recovered for further combustion in a recovery boiler is usually a gas, a liquid, or a combination of the two. Processes generating these types of wastes include metal refineries, petrochemical processing plants, and other industrial plants operating at high temperatures. Solid material may also be used, though this is less common. The most notable example of solids used in recovery boilers is in papermaking.

Benefits from sinter-cooler waste heat recovery system
Direct benefits: The recovery process will add to the efficiency of the process and thus decrease the costs of fuel and energy consumption needed for that process.
Indirect benefits:
Reduction in Pollution: Thermal and air pollution will dramatically decrease since less flue gases of high temperature are emitted from the plant since most of the energy is recycled.
Reduction in the equipment sizes: As Fuel consumption reduces so the control and security equipment for handling the fuel decreases. Also, filtering equipment for the gas is no longer needed in large sizes.
Reduction in auxiliary energy consumption: Reduction in equipment sizes means another reduction in the energy fed to those systems like pumps, filters, fans,...etc.


related news about waste heat boilers http://www.zgindustrialboiler.com/news/i/waste-heat-boiler-room-layout-in-metallur.html

How to solve air leakage in autoclave

It is very important to ensure that all of the trapped air of a steam autoclave is removed from the autoclave before activation, as trapped air is a very poor medium for achieving sterility. Steam at 134 °C can achieve in three minutes the same sterility that hot air at 160 °C can take two hours to achieve.
Methods of achieving air removal include:
Downward displacement: As steam enters the chamber, it fills the upper areas first as it is less dense than air. This compresses the air to the bottom, forcing it out through a drain which often contains a temperature-sensing device. Only when air evacuation is complete does the discharge stop. Flow is usually controlled by a steam trap or a solenoid valve, but bleed holes are sometimes used, often in conjunction with a solenoid valve. As the steam and air mix it is also possible to force out the mixture from locations in the chamber other than the bottom.
Steam pulsing: air dilution by using a series of steam pulses, in which the chamber is alternately pressurized and then depressurized to near atmospheric pressure.
Vacuum pumps: a vacuum pump sucks air or air/steam mixtures from the chamber. (Explained here)
Superatmospheric cycles: achieved with a vacuum pump. It starts with a vacuum followed by a steam pulse followed by a vacuum followed by a steam pulse. The number of pulses depends on the particular autoclave and cycle chosen.
Subatmospheric cycles: similar to the superatmospheric cycles, but chamber pressure never exceeds atmospheric pressure until they pressurize up to the sterilizing temperature.
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4 ton steam boiler coal consumption

Industrial steam boiler is trusted to supply steam and as main device for supplying steam in textile plant, power plant, paper mill, food processing, etc. Coal fired steam  boiler can burn lignite coal, bituminous coal, anthracite coal, etc. Here we are likely to have in mind the coal usage of a 4 ton coal fired steam  boiler.

As shown by boiler manufacturer ZG a same 4 ton steam  boiler produces different coal consumption, and also the calorific valuation on coal which can be linked to the utilization, it could be calculated matching with the appropriate formula: lower B = Q / (qn)      
B- the boiler coal consumption within a certain rated load with unit kg / h, Q-the effective utilization of heat kJ/h under rated load  (for instance, a given 4t / h steam boiler is about 4 ^ 7kJ / h), q- low calorific valuation on coal-fired kJ / kg, n - boiler thermal efficiency.

Which is in accordance with 4 ton steam  boiler discharge  (steam  for private use), temperature, pressure; water system and reduce water temperature, temperature, pressure calculated enthalpy increase, according to the low calorific worth of coal, combustion efficiency (deduct smoke heat loss, chemical incomplete heat losses)  were taken into consideration.
The 4 ton coal-fired steam  boiler manufactured by our company uses secondary air unique structure, effectively increase the aerodynamic field inside the furnace, the recent particles cast forward arch, in favor of the fuel ignition, also extend the fuel stay amount of time in the furnace, enhance the fuel flexibility and efficiency.
coal steam boiler project http://www.zgindustrialboiler.com/project/10-ton-coal-fired-steam-boiler-vietnam.html

environmental protection 15 ton coal fired boiler

15 ton coal-fired boilers as being a traditional boiler are widely used in method of getting hot water and steam, with the rapid development of the national energy and environmental protection, government requirements for environmental boiler gradually increase, industrial coal-fired boilers begin to configure related environmental protection equipment.
1, 15 tons coal boiler Vietnam chimney height: boiler room chimney height requirements is the fact that each new boiler room is allowed to set up only one chimney, boiler room chimney relating with the minimum allowable height (GB 13271-2001) execution.
2, the revolutionary production and installing the boiler should install efficient desulfurization and efficient dust removal facilities; in-use coal boiler should accomplish efficient desulfurization of flue gas, de-dust transformation, and actively carry out technical transformation of low-nitrogen combustion, achieve full discharge towards the environmental standards.
3, dust removal equipment: 15 ton coal-fired boiler fuel from the combustion process will make a wide range of flue gas (gas combination of solid material and material), will plug the boiler, it takes de-dusting. Common mechanical boiler precipitator dust removal equipment are Cottrell precipitator, filter dust, scrubbers.
4, desulfurization and denitrification configuration: serious pollution produces during coal combustion, such as CO2 in flue gas is often a greenhouse gas, SOx can result in the formation of acid rain, NOX Acid precipitation is brought on by one of the culprits, and so people should install desulphurization and denitration equipment in coal fired steam boilers.
ZG boiler as the leading boiler manufacturer in coal fired boiler field will provide top quality boiler, professional installation and maintenance service for the clients.
more project http://www.zgindustrialboiler.com/project/4t-Chain-Grate-Boiler-Exported-to-Kazakhs.html

Coal quality importance in coal fired hot water boiler

20 ton coal-fired hot water boiler as a relatively wide used boiler form, can be used for winter heating, power generation,provide hot water in processing. The coal quality is very important, which is related to the normal operation of the fuel and the combustion efficiency of the boiler. The following is ZG Boiler analysis of coal quality importance in coal-fired boiler .

According to well know boiler manufacturer ZG, when the coal quality in boiler furnace has big difference from the coal boiler designed and verification coal quality, it may bring the following adverse impact on the boiler flame-out and auxiliary equipment:

1.when the 20 ton coal fired boiler coal quality is poor, boiler ignition and operation of conditioning will be tough, hard to extinguish, easy to flame-out, seriously affects the boiler outlet temperature standards. Easy coking in furnace, convection tubes, economizer, air preheater and other heating surface will be badly worn and easy to fouling, boiler air resistance increases, finally affects the thermal efficiency of the boiler.

2, when the sulfur content of coal quality is large, easy to cause water wall high temperature corrosion, the boiler backpass, economizer, air preheater, etc. produce low temperature corrosion, causing boiler tube explosion and affecting safe operation of the coal fired hot water boiler.

Therefore, when choosing 20 ton coal-fired hot water boiler, the coal quality needs to pay attention and  choose according to the actual design and local fuel supply. More information about boilers can also consult ZG Boiler engineer, hot line 86-371-86062323.
coal fired boiler project http://www.zgindustrialboiler.com/project/58-mw-coal-fired-cfb-boiler-to-pakistan.html