YLL series chain grate hot oil boiler is an safe and energy saving boiler with working characteristics of low working pressure (0.8 MPa) and high temperature (350℃). It is vertical type boiler, the combustion equipment is chain grate (small scale flaker is available), has the advantages of feed mechanically, strong adaptability of different fuels, low coal leakage, and convenient maintenance. The fuel could be both coal and biomass fuels, includes wood, bagasse, straw, peanut shell, rice husk, etc.

The heat carrier is heat conduction oil, the circulating pump force heat transfer medium circulating in liquid phrase, and transfer heat to heat user equipment, then return to the heating furnace for reheating. Sitong Boiler has a mature R&D and design team, could customize the boilers based on customers’ requirement. 

Application 

Owing to its characteristics of high heating temperature, low working pressure, and energy saving, the hot oil boiler could be widely used in a variety of industrial production. 

1) Textile industry - dyeing machine, drying rooms, high temperature machine, resin setting machine.

2) Food industry - cooking, drying, vegetable oil refining.

3) Chemical industry - oil chemistry, polymer industry, reaction tanks, distillation, concentration.

4) Plastics industry - plastics fired, extruded shape.

5) Rubber industry - hot press, hot extent, extrusion, vulcanization molding, injection, etc.

6) Paper industry - drying, corrugated paper processing, calender, glue roller.

7) Wood industry - hot processing, heat setting.

8) Machinery industry - drying, assembly processing

9)Building materials industry - plasterboard drying, asphalt heating, emulsified asphalt, asphalt concrete, concrete component maintenance, etc.

10) Synthetic fiber industry: polymerization, melting, spinning, extension, dry 

11) Other applications

Technical Advantages

1. High thermal efficiency

1) The boiler is circulation heating in liquid phase, there is no heat loss leaded by condensing, thermal efficiency is high, and the boiler is very safe when operating.

2)Adopts horizontal type three pass structure, improve the heat utilization efficiency.

3) The boiler shell use aluminum silicate board for heat preservation, low heat loss.

4) Equipped with economizer, make full use of flue gas heat, decrease the exhaust smoke temperature.

2. Large combustion chamber

1) The boiler combustion chamber is composed with chain grate and large diameter coil, large combustion space, high combustion efficiency. 

2) Combustion equipment and boiler upper part are designed separately, the boiler combustion chamber could be designed based on the characteristics of different fuels, wide adaptability of different fuels.

3. Excellent coil design

The radiation section adopts square coil, and the convection section adopts serpentine coil, the heating coil has a good thermal expansibility, low stress, safe and reliable.

4. Automatic chain grate

1) The small scale chain grate boiler could resist the temperature as high as 1200℃, long working life.

2) The chain grate has a low coal leakage because of the small gap.

4) Convenient for maintenance, it could be done without boiler shut down.

5) Based on customers’ requirement and fuel characteristics, the grate could be designed as small scale grate, chain belt grate, and bar grate, etc.

5. Sufficient output

The boiler adopts horizontal type three pass structure, improve the heat utilization efficiency. Large heating area, good heat transfer, achieve high thermal efficiency and sufficient output.

6. Perfect automatic control 

The boiler adopts PLC full automatic intelligent control cabinet and interlock protect system, has the protect function on oil temperature, medium temperature, pressure, etc, adjust conveniently.

Parameter

1. High thermal efficiency

1) The boiler is circulation heating in liquid phase, there is no heat loss leaded by condensing, thermal efficiency is high, and the boiler is very safe when operating.

2)Adopts horizontal type three pass structure, improve the heat utilization efficiency.

3) The boiler shell use aluminum silicate board for heat preservation, low heat loss.

4) Equipped with economizer, make full use of flue gas heat, decrease the exhaust smoke temperature.

2. Large combustion chamber

1) The boiler combustion chamber is composed with chain grate and large diameter coil, large combustion space, high combustion efficiency. 

2) Combustion equipment and boiler upper part are designed separately, the boiler combustion chamber could be designed based on the characteristics of different fuels, wide adaptability of different fuels.

3. Excellent coil design

The radiation section adopts square coil, and the convection section adopts serpentine coil, the heating coil has a good thermal expansibility, low stress, safe and reliable.

4. Automatic chain grate

1) The small scale chain grate boiler could resist the temperature as high as 1200℃, long working life.

2) The chain grate has a low coal leakage because of the small gap.

4) Convenient for maintenance, it could be done without boiler shut down.

5) Based on customers’ requirement and fuel characteristics, the grate could be designed as small scale grate, chain belt grate, and bar grate, etc.

5. Sufficient output

The boiler adopts horizontal type three pass structure, improve the heat utilization efficiency. Large heating area, good heat transfer, achieve high thermal efficiency and sufficient output.

6. Perfect automatic control 

The boiler adopts PLC full automatic intelligent control cabinet and interlock protect system, has the protect function on oil temperature, medium temperature, pressure, etc, adjust conveniently.

Transaction Process

PRE-SALE SERVICE

1) 24 hours customer service hot line, we will offer you professional technical data, suggestion, and purchase guidance.

ON-SALE SERVICE

Our professional engineering team will customize the boiler based on your requirement. Also, we could help arrange the boiler room and offer appropriate energy utilization plan, to maximum boiler users’ profit. Sitong Boiler cooperates with experienced transportation agency, to ensure the products arrive to destination intactly. We have overseas installation team for door to door installation, debugging, and periodic maintenance.

Process

customer inquiry -- professional consulting service, customize boiler based on requirement -- place order and pay deposit -- boiler manufacturing -- pay balance -- delivery -- installation, debugging and periodic maintenance

AFTER-SALE SERVICE

1) Offer lifelong door - to - door after sale service and quarterly visiting. We have professional overseas engineering team and overseas agencies, to solve users’ problems during boiler operation

2) 24 months warranty period, if boiler body or accessories are damaged under proper operation, Sitong boiler will maintenance or replace the damaged accessories for free (except spare parts).

3) 24 hours service hot-line, offer proper solutions to solve the problems happened during operation.