DONGYUE Machinery Group (Boiler Division)

1.Products features

1. The steam shall be produced by heat of production process, resulting in energy saving and increasing benefit.

2. The  heat boiler shall feature the following advantages: compact structure, no pollution, small system resistance, 

    simple operation, safty and reliability, and full waste heat recovery.

3. The design of heat boilers shall be in accordance with users’ process parameter.

2. Product Introduction

(1) Powdered coal boiler

1.The high efficiency coal boiler system(patent No. ZL200520002170.X)designed by Beijing Research

institute of Coal Chemistry(the China Coal Research institute) includes 1.0~30t/h steam boiler and 0.5~

21MW hot water boiler.Their efficiency is high.and the waste emission can be highly controlled. the inve

stment is moderate.the control is simply. the running cost is low.The structure characters are as following.

 Hetero-gallbladder. so the burning temperature is low and high efficient,it is easy to discharge the ash. 
2. The waste gas is dedusted with hop-pocket,there is almost no visible particle released to the air,and the 
emission is much lower than the national requirement. Recur to the self-desulfur technique,the sulfut content 
of the waste gas is much lower than much lower than the national requirement as well as the Beijing local 
requirement too. 
3.The boiler is equipped with auto control system,so,it can be auto controlled and adjusted,the parameter 
4. Can be recorded continuously. We botain a big breakthrough on the auto control of coal-fiting boiler. 
5.The boiler needs a small installing area,all the operations of milling,convering,feeding,buring,dedusting 
are closed,so,the control environment is good. 

(2)JRL Series Hot-biast Stove

Product Features of JRL Series Hot-biast Stove JRL series hot-blast stove is a new designed stove

absorbing the merits of SZL series coal fired boiler.This series of product is a kind of heating equipment

by mechanical adding coal,mechanical deslagging and chain fire grate firing.At the same time,it can save

the labor of the stoker.Most parts of the JRL stove are built with refractory,so,it has a long lifespan.And the

thermal effciency is up to 80%,it can be widely used in chemical industry, food service industry and building

industry.

(3) L(W)DR Series Elec-heating steam Boiler

Product Features of L(W)DR Series Elec-heating steam Boiler 1,The elec-heating steam boiler is designed

with world grade technique,intergration design,unique structure,refinement shape,convenient install and easy

maintain. 2,The stove is controlled by micro computer,so,it can run with nobody-watching,and be configured

by the programme sensor panel,human-machine interface and remote control(optical). 3,It can safeguard for

over heating,over pressure,lacking of phase,lacking of water and over current,it has a good effciency of circ-

ulation and heating. 4,It will avoid impacting the transmission-line system of electric power by ladder loading,

and the heating units have a uniform life. 5,The boiler has 98% efficiency with double layers ultra thick insul-

ation and 100% heat conversion efficiency.The elec-heating pipes are stainless steel and have a long life with

advanced technique.

 (4) Organic Heat Transfer boiler

Product Features of Organic Heat Transfer boiler 1,The boiler can attain upper working temperature on the

condition of lower operating pressure. 2,The boiler has such functions as heating steady and adjusting te-

mperature accurately. 3,The heat effciency can keep on optional level under each load. 4,Eletricity,water and

investment can be saved

(5) SZL Series Package Hot-water Boiler

Product Features of SZL Series Package Hot-water Boiler 1,Orogonal horizontal tourbilion burn locule is

applied on the boiler,which can improve thermal efficiency and lower waste concentration released notably.

Smoke emission concentration is less than 100mg/m3,smoke blackness is less than Ringelmann I level.It

can be used for first class regions of the state. 2,Thermal efficiency is high,and the thermal efficiency of

all kinds of boiler exceed miniistry-issued standards over 5%. 3,Water-tube boiler has a rational structure,

which runs safely and reliably,and it has a long life-span. 4,machining conical surface sealing stucture is a-

pplied to air distribution device,average windpipe stucture is adopted in the wind room.This technology is

protected by national patent. 5,the boiler is widely suitable for fule,such as bituminous coal class II and class

III. 6,The boiler has such features as compact strcture,small area occupation.This serial of boiler is lied out

single-story,so the price of boiler room can be decreased and investment of boiler room can be saved. 7,

This series boiler is appraised as first-class product by Mechanial-Electronics Ministry.They got the following

award,which are environment-protectionproduct trusted by national user,national excellent energy-saving pr-

oduct,and excellent energy-saving product of shandong province. 8,Combustion apparatus and other energy-

saving apparatus promoted by our country can be matched according to customer"s requirement.

(6) DZL Series Package Hot-water and Steam boiler

1,The crack of pipes and plates under high temperature can be prevented by using single backhaul

solenoid,arch plate,aerofoil flue and elastomer shell taking the place of rigid shell.

2,The rational designed circulation loop prevents the base heating and bubbling.Backwater

ejecting can improve the reliability of circular water, get rid of the pipes slagging and lrt the

stove run orderly.

3,Good smoke prevention and dust control,the dust is inertial separated from the gas in thestove.

4,Small stove by optimize design and the price of boiler room can be decrease 30%.

5,Good firing ,itcan add coal and deslag automatically,so,it can save the stoker"s labor.

(7) Q Series Heat Recovery Boiler

1,The boiler produces steam using waste-heat in the process of production.It can save energy and

improve economic performance.

2,The heat recovery boiler hasthe advantages of compact structure,good sealing perfor-

mance.no pollution,small resistance,easy to operate,safey and reliability,remain heat can

be recovered well.

3,HEAT recovery boiler can be designed accordingto user's technological parameters.

(8) SZL Series Coal and Waste Product Burning Boiler

 1,The boiler is designed to double-stum,assembling,single storey lay-out.It has the advantages of

compact structure,big heating surface area,safey and reliability,rapid installation,low installation

fee,etc.

2,There are tuff device and turbillion burn locule in the furnace,which is used to reduce the

dustiness.It also has flue gas purfucation plant in the rear.Smoke emission concentration can

conform to the emission regulation of first class regions of the state. 3,Feeding device,whose

structureis rational,feeds material by mechanical and wind power.The process is even,reliable and

high mechanical extent.

4,Travelling grape takes several patent technologies such as small roller structure and side grate,etc,which improves the

liability of the boiler.

(9) LC Series Waste Product Burning Boiler

1,The boiler is designed to double-stum,assembling,single storey lay-out.It has the advantages of compact structure,big

heating surface area,safey and reliability,rapid installation,low installation fee.etc.,

2,There are tuff device and turbillionburn locule in the furnace,which is used to reduce the dustiness.It also

has flue gas purification plant in the rear.Smoke emission concentration can conform to the emission

regulation of first class regions of the state.

3,Feeding device ,whose structure is rational,feeds material by mechanical and wind power.The proc-

ess is even,reliable and high mechanical extent.

4,This series boiler is appraised as technical development and innovation product by Linyi Economic

and Trade Commission.

(10) WNS,SZS Series Oil/Gas-fired Boiler

1,It is of the following features,such as full-auto-running,safety and reliability,varuous of control and protection device makes

steam pressure,water temperature and combustion system are all automatic control with easily operate,save labour and raie-

the serviceability.Hot water boiler have program-controlled,temperature-controlled and time-controlled.

2,Equipped selectiy with import burner,the yuel can be full burned with greatly save energy effect.It can conform with the dema-

nding regions.

3,Full-closed structure of the boiler and with features of smalless,noiseless,no pollution,good-looking and cleaniness.

4,Compact structure,small area occupation and easy to be installed.

(11) SZS,SHFS Series Water-coal Starch Series Boiler

1,The advantages of coal fired boiler and oil fired boiler are utilized to the greatest estent,and it is an ideal environment-

protection and energy-saving substitute of coal fired boiler and oil fired boiler.

2,The problems of environment pollution of coal fired boiler and high running cost of oil fired boiler are settled.

3,The product is environment-protecting and energy-saving.The environment-protecting targets of sulfur conment of smoke

and dustiness precede national standard.

4,Fuel ratio is up to more than 98%,and thermal effciency is up to more than 85%.