Produce 20000 kg/h Steam SZL Series Coal Fired Chain Grate Stoker Boiler

Product Overview

Description

Produce 20000 kg/h Steam SZL Series Coal Fired Chain Grate Stoker Boiler

 

Model Item		SZL 2 fast assembly	SZL 4 fast assembly	SZL 6 packaging assembly	SZL 8 packaging assembly	SZL 10 packaging assembly	SZL 15 packaging assembly	SZL 20 packaging assembly
Rated Steam Capacity(t/h)		2	4	6	8	10	15	20
Working Pressure(Mpa)		1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5
Rated Steam Temperature(C)		194/204/226	194/204/226	194/204/226	194/204/226	194/204/226	194/204/226	194/204/226
Feed Water Temperature(C)		20
Heating  Area(M2)	Body	70	100	142	215	234	318.5	504(steam) 396(water)
	Econo- mizer	35	66	130	130	174	348.8(steam) 174(water)	377.6(steam) 236 (water)
Effective area of grate(M2)		3.22	6.72	7.52	10.25	11.8	18	23.2
Thermal Efficiency (%)		84 ~ 85
Weight of  Transportation(T)		25	30	22.5	25	28	30	35
Dimension of  Transportation L*W*H(m)	Up	5.5x2.3x3.6	7.7x2.4x3.5	6.1x2.8x3.5	6.9x2.9x3.5	7.8x3.2x3.5	10x3.2x3.5	11x3.2x3.5
	Down			7.2x2.8x2.5	8.0x2.9x2.5	9x3.2x2.5	12x3.2x3.1	14x3.2x3.1
Notes: Parameter is for reference only, If any changes should follow actual drawings.

 

 

 

1. What are the spare parts for DZL/SZL series coal/biomass fired boiler?

Generally, the spare parts are instrumentation valve, grate plate, gasket, etc.

 

2. What are the difference between DZL and SZL with the same capacity?

DZL

1. Usually for the boiler with capacity lower than 10Ton

2. Easy for transportation

3. Lower request on water quality

4. Low boiler room construction charges

5. Low requirement on water quality

SZL

1. Usually suitable for bigger capacity boiler

2. Good water circulation, small water volume

3. Warm up faster, higher steam quality

4. Higher request on water quality

5. Higher thermal efficiency

 

3. What are the differences between vertical type boiler and horizontal type boiler with the same capacity?

1. Structure of vertical boiler is compact, occupy a limited area,

2. Convenient on installation and removal.

3. Low cost and investment on capital construction. Steam exhausted fast and sufficient.

1. The combustion space of horizontal is big, fuel can be burned completed.

2. The thermal efficiency is higher than the vertical boiler,

3. Horizontal type: less thermal loss, stronger output, and higher steam quality.

 

4. What are the limitation (size, humidity, chemical element concentrations) of coal fuel/solid fuel/wood fuel?

Size requirement of coal:6-25mm

Size requirement of blending coal: <50mm (the coal less than 6mm should less than 30%)

Diameter of biomass particle: 6~10mm, length: 25~50mm, water content < 15%, ash content < 2%, sulphur content<0.07%, chlorinity <0.07%, nitrogen content < 0.5%

 

5. What is the size of furnace door and blower hopper?

Size of furnace door:

Standard elliptical furnace door:300*800*1500

Blower hopper size:

2 tons conical hopper: 1400*800*1500

4 tons conical hopper: 2200*1400*1500

 

6. What is the combustion mode of coal/biomass fired boiler?

The combustion mode of coal/biomass fired boiler is layer combustion. Place the flue on the fixed or moved grate, to form an evenly fuel bed with a certain thickness, air comes from the bottom of grate, and combustion occurred on the fuel bed.

 

7. What is the thickness of refractory?

The thickness of refractory: 50-60mm

 

8. What is the installation sequence?

Boiler- Economizer- Dust collector - ID fan - chimney