There are two main hazards of coal-fired boilers, one is the environmental hazard caused by soot and sulfur dioxide emitted by coal-fired boilers, and the other is the health hazard caused by pollutants discharged from coal-fired boilers. The users of coal-fired boilers are mostly small units and small enterprises. Due to the consideration of operating costs, inferior coal is often used. Without desulfurization, denitrification and even dedusting equipment, it is directly discharged into the atmosphere, which is causing a large range of haze weather. One of the important reasons is that the state requires that small coal stoves must be treated to completely eliminate and prohibit the construction of coal-fired boilers of less than 10 tons/hour.

A. Environmental hazard: The soot emitted by the boiler is mainly derived from the ash in the fuel, and also derived from the carbon black formed by the incomplete combustion of carbon and hydrocarbons in the fuel. Coal contains a lot of ash and sulfur, which can produce a lot of soot and sulfur dioxide after combustion. The smoke reduces the illuminance and visibility of the sun, affecting the growth of animals and plants, and also causes urban traffic tension and traffic accidents to a certain extent. Sulfur dioxide stays in the air for about a week. When it rains or snows, it can be reduced to the ground to acidify the soil. If sulfur dioxide encounters water vapor in the sky, it will become sulfuric acid fumes, which is extremely toxic to humans, buildings, Animals and plants are extremely harmful.

B. Health hazard: According to its particle size, soot can be divided into dust reduction (particle size greater than 10 microns) and fly ash (particle size less than 10 microns). Because the floating dust floats in the atmosphere for a long time, when the human body inhales, it will cause diseases such as bronchitis, asthma, emphysema, etc., and cause various diseases of human organs, such as deposition in the lungs, leading to lung failure. . According to statistics, the incidence of cancer in urban population is 1-3 times higher than in rural areas. The dust in the atmosphere can absorb a lot of ultraviolet rays in the sunlight, which is extremely detrimental to the growth and development of children. Sulfur dioxide can cause irritating reactions in human nasal cavity and throat. At high concentrations, it can cause bronchitis and other symptoms, and even cause suffocation and death.

Respond to the national large-scale call, eliminate coal-fired small boilers, actively use new energy, purify the air and keep health!

If you don't want to burn coal, what should you use? Next, Xiaobian focuses on introducing Zhongrui horizontal fuel (gas) full condensing steam boiler. The horizontal fuel (gas) full condensing steam boiler is based on the analysis and summary of the relationship between the condensation of water vapor in the flue gas and the exhaust gas temperature, the relationship between condensation and thermal efficiency, and the results of condensed water on the corrosion rate of different steel grades. Reasonable design of the heated surface, greatly reducing the exhaust gas temperature, ensuring that the water vapor in the flue gas reaches the design required condensation rate, absorbing the sensible heat in the flue gas and the latent heat of vaporization released during the condensation process of the water vapor, thereby greatly improving the thermal efficiency of the boiler. A condensing boiler.

Boiler features:

1) All-steel-welded structure boiler body

2) Complete assembly of boiler body (including burner, control system, primary instrument valve)

3) Two front and rear smoke box inspection cleaning doors

4) Rear combustion chamber viewing mirror and front burner viewing mirror

5) High temperature cement material for boiler front and rear doors

6) Outsourcing is 1.0MM thickness, front furnace face box door is high temperature resistant paint spraying

7) Supporting boiler multiple safety interlock protection device

8) Full corrugated furnace, threaded pipe, under the combustion chamber to ensure that the heating surface of the boiler is fully water cooled

9) Full wet back structure, 100% water-filled fire structure

10) Boiler body inspection manhole and hand hole

11) Control cabinet wiring is enclosed enclosed closed packaging

12) Boiler supporting imported Italian Liya Road burner

13) Support domestic famous brand water pump

14) Matching water level equalizer

15) There is a striking nameplate in front of the furnace door, beautiful and generous.

16) A layer of aluminum silicate felt, a layer of glass wool, with a total thickness of 100mm,

The exterior is coated with Baosteel galvanized color coated plate. The surface temperature is not more than 50 degrees.

Fully intelligent control system:

1. PLC automatic intelligent control system

Zhongrui Boiler PLC automatic intelligent control system adopts mechatronics control equipment and programmable logic controller (PLC) joint control mode. The advanced programmable logic controller (PLC) is the "central processor" of the control system. The control system is operated by the touch screen, which greatly improves the degree of boiler automation control and operation reliability, and the operation is simpler and more intuitive.


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The operation interface is intuitive and simple, and the operating status is clear at a glance

● High resolution 7 inch color touch screen.

● It can display the operating status and power status of combustion, water pump, etc. in real time and at a glance.

● Multi-level pop-up menu in Chinese, which makes the monitoring of boilers simple, organized and intelligent.

● Chinese fault repair guide, easy to operate.

Fully automatic operation, easy to operate

● An overpressure alarm is provided.

● Realize boiler load automatic adjustment function;

● High and low water level alarm protection function: Boiler prompts alarm.

High-quality hardware and comprehensive software to ensure an optimized system is efficient and reliable

● It adopts strong anti-interference performance and uses industrial grade CPU, which is safe and reliable;

● Coexistence of multiple interlocking protections ensures high reliability and high security of the system;

● There are multiple levels of authority control system, and those without permission cannot change system operating parameters or operate the boiler;

Record fault history for easy maintenance

● Automatically record, accumulate pump running time and burner running time, which is convenient for accounting of energy consumption and life

● If the boiler fails, first stop the furnace safely and pop up the screen to record the time and fault content of the previous dozens of faults. The user can quickly find out the cause of the fault according to the maintenance guide.

Multi-program control options and rich extensions give customers more choices

With standard RS232/485 and USB interface, using MODEBUS protocol, it can realize the connection with mobile phone automatic control or DCS, realize the boiler without networking, and improve the energy-saving operation of the boiler.