/d/file/20200903/e4143f487026d202d98e9ccfbb37b386.jpg

DZL Series Coal Fired Chain Grate Boiler

Zhongding DZL boiler is the new type fast-assembly coal/biomass boiler, this is national patent product, and the patent number is 200920088278.3. The boiler equipped with water cooling arch and two-wing flue. Compare with the other boilers with same parameters, it has more compact structure, more reliable operation, smaller volume, faster output and higher thermal efficiency.

Rated Capacity:

1~20 t/h

Pressure:

0.4~2.5 Mpa

Certificate:

ISO9001, CE, SGS, ASMEII

Fuel:

II class bituminous coal, meager coal, anthracite coal

Boilers Structure

DZL Series Coal Fired Chain Grate Boiler

1. The fore-and-aft arch of the boiler utilizes the patent technique: the horizontal water-cooling pipe irrigates the whole water-cooling arch structure. It increases the heating area, has the function of heat insulating arch.

2. The boiler employs the structure of water-cooling side contact-seal. The design is advanced and reasonable, it replaces the traditional way for side seal with iron, avoids the problems of grate stucked by cast iron seal and side seal burnout because of air leakage.

3. The design of two-wings flue makes the flue gas access flue gas box from the back smoothly, increases the flue gas temperature in the high temperature tube plate, avoids the tube plate crack.

4. The drum employs single-return screwed pipe, improves the efficiency of heat diffusion, and avoids dust gathered in flue gas tube by taking advantage of screwed pipe’s ability of gas clean automatically.

Auxiliary equipment

Chain grate

Chain grate

The chain grate is 500~1000mm longer than others, improve combustion efficiency. The grate has small fuel leakage, has long working life.

Control system

Control system

We adopt Siemens PLC and Schneider electrical components. can realize automatic interlock control to ensure boiler safe operate.

Economizer

Economizer

The boiler is equipped with aluminum alloy fin tubes, its heating transfer area is 2-10 times larger than the bare tube, has a good heating transfer and mechanical property.

WATER PUMP

WATER PUMP

We adopts the stainless vertical pump with low noise, stainless impeller and pump body.

Steam header

Steam header

Standard configuration: one inlet, three outlets, equipped with pressure gauge and thermometer. It can be designed according to customers' requirement.

Water softener

Water softener

It is fully automatic and free debugging. We adopts PE material for salt tank body, it has hard texture and it is easy to move, anti-shock, and no leakage.

Quality

Zhongding Boiler pay more attention to the boiler quality from raw material to producing process.

boiler quality
we choose domestic well-known manufacturer who can provide component report of raw material, to ensure the raw material is qualified. After the completion of raw material procurement, there are specialized technicians in our factory to make sampling chemical composition analysis and physical performance analysis, and we can also provide raw materials inspection report.
We adopt numerical control cutting, which has the advantage of high precision, neat cutting surface, nice appearance and high material utilization.
Boiler manufacturing
Boiler production
We adopt submerged arc fully automatic welding. When each welding process is done, the 100% X-ray inspection will be arranged for every welding seam, which can prevent the defective parts from flowing into the next process.

Parameter

Model DZL2-0.8/1.0/1.25-AII.P DZL4-1.0/1.25/1.6-AII.P DZL6-1.25/1.6-AII.P DZL8-1.25/1.6 DZL10-1.25/1.6
Rated Evaporation Capacity (t/h) 2 4 6 8 10
Working pressure (MPa) 0.8/1.0/1.25 1.0/1.25/1.6 1.25/1.6 1.25/1.6 1.25/1.6
Rated Steam Temperature (℃) 174/184/194 184/194/204 194/204 194/204 194/204
Feed Water Temperature(℃) 20 20 20 20 20
Exhaust Flue Gas
Temperature(㎡)
167/168/170 165/169/107 165/169 167/170 166/167
Thermal Efficiency(%) 80.5/80.46/80.40 80.81/80.73/80.61 81.05/81.0 80.27/80.1 81.05/81.00
Coal Consumption
(kg/h)
331/331/332 660/660/662 987/988 1329/1332 1600/1647
Note: 1. Coal consumption: the calorific value of A II is 18841KJ/kg
2. Parameter is for reference only, if any changes should follow the factory technical data.

Projects

Order Online

Contact us now if you have any question about our company and products chinaboiler steven@zhongdingboiler.com. Any of your inquiry and suggestion will be highly appreciated. We will keep your information completely private.

*Name:

*Email:

*Tel:

*Message: