Wood briquettes fired steam boiler, biomass pellet wood fired steam boiler for paper industry

Introduction

DZL series package boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure. Threaded pyrotechnic tubes are arranged in the drum to form a convection heating surface, while the drum and the water walls on both sides form a radiation heating surface in the furnace. Each package system is fully installed and wired before being transported to site and is electrically controlled to provide functions such as stepless speed regulation for the stoker, threshold parameter alert and interlock protection.

Technical Parameters

Performance characteristics

1. Designed with horizontal, three passes, all-wet back structure.
2. Fire tubes are surrounded by water, and these design making efficient up to 80%
3.Threaded tube: Strengthen the heat transfer, increase the boiler heat efficiency
4. Big combustion room design: increase furnace heating area, decrease boiler size, and reduce the emission of the Nox Corrugated hearth make the boiler safer.

5.Adopting water seal eliminate slag, slag through grate drop into slag notch.

Advantage

1 The boiler barrel is consisted of arched tube plate and thread smoke tube, it makes the boiler Quasi steel body into quasi-elastic body structure. It cancel brace part of the tube plate, reduce the stress .Tube plate's smoke tube change from double return into single return. It solves problem of the tube plate crack

2 It takes the thread smoke tube to enhance heat transfer, improve the heat transfer coefficient and thermal efficiency. Due to disturbance of smoke in the tube, the smoke pipe is not easy to accumulate dust ,it can clean by itself .

3 The bottom of the boiler barrel layout with bank of tubes. It will avoid the dead water region in the bottom of the boiler barrel, then sludge is hard to deposit. Boiler barrel can get good cooling, it avoid the bottom of the pot shell burnt or bulge effectively.

4 Stable operation, convenient adjustment, supply strong power.
5 The boiler can remove the dust automatically, to ensure the smoke dust to reach the ruled norm of the environment protection

FAQ

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 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.

3.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%

4.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

Henan Jinzhen Boiler Co., Ltd is a professional manufacturer that specialized in the environment-friendly steam boiler and pressure vessels’ design, manufacture, installation, maintenance. We specialized in gas steam boiler, oil steam boiler, diesel steam boiler, coal steam boiler, biomass steam boiler, wood steam boiler, coal thermal oil boiler, biomass thermal oil boiler, gas fired thermal oil boiler, oil fired thermal oil boiler

Our factory is located in beautiful Zhoukou City which nearby Zhengzhou Airport, Shangqiu Railway Station, gets convenient traffic.We have over 6,000sq.m. building area, 105 employees, annual sales amount exceeds 25,000,000USD which includes 25% export amount in worldwide.

Our boilers include more than 150 kinds. There are:
(1) DZL coal/biomass fired steam boiler(1-20ton/h;)
(2) DZH wood fired steam boiler(0.5-6ton/h;)
(3) SZL biomass/coal fired steam boiler(4-25ton/h;)
(4) WNS series gas/oil fired steam boiler(0.5-20ton/h;)
(5) YLL(W) series coal/biomass fired thermal oil boiler(150,000-16,000,000Kcal)
(6) YY(Q)W gas /oil fired thermal oil boiler(150,000kcal-12,000,000Kcal)

All products comply with GB/T quality standards and are greatly appreciated in a variety of markets throughout the world. Our well-equipped facilities and excellent quality control throughout all production stages to totally guarantee customers' satisfaction.

As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching America, Australia, Mexico, Vietnam, Russia, Kazakhstan, South Africa, Syria,South Africa, Ethiopia, etc.