4200 kw coal fired hot water boiler for vegetable greenhouse

4200 kw coal fired hot water boiler for vegetable greenhouse product description General features of the DZL series hot water boiler: Low pressure, horizontal, industrial, coal fired, fire tube, automatic chain grate steam boiler. The rated evaporation is between 1ton/hr to 20 ton/hr.   Product advantage: 1.       Spirally corrugated tube Function: (1) Heat transfer enhancement; (2) Improve the suppleness to avoid the tube plate cracking; (3) Clean groove itself.   2.       Arched tube plate Function:  (1) reduce the thermal stress of weld; (2) improve the tube plate suppleness; (3) simplify the structure and save the boiler room space.   3.       Complete protection device Function: deal with the situation of overpressure, over-temperature, water shortage and flameout.   4.       Up-tube layout Function: (1) Avoid the bulging on boiler drum; (2) Promote the water cycle (3)clean the sediment in the boiler bottom.   5.       Airfoil flue Function: Lower the high temperature of tube plate flue gas. And then reduce the thermal load of the boiler bottom.   6.       The return water injector Function: Increase the reliability of the water circulation and avoid the booster caused by the poor circulation.   Product feature 1.       Low coal consumption and High thermal efficiency; 2.      Reasonable water cycling, large water capacity and spacious steam volume; 3.       Equipped with light chain belt assembly grate, blowing machine and draught fan. 4.       High automation, mechanical adjustment of water supply, high and low water level alarm; 5.       Low water and blowers interlocking protection; 6.       Mechanical operation of boiler coaling, slag discharging; 7.       Simple operation and quick installation.      Technical parameters  

Projects	unit	DZL0.7-0.7	DZL1.4-0.7	DZL2.8-1.0	DZL4.2-1.0	DZL5.6-1.0	DZL7.0-1.0	DZL10.5-1.0	DZL14-1.0
rated thermal power	MW	0.7	1.4	2.8	4.2	5.6	7.0	10.5	14
rated outlet pressure	MPa	0.7	0.7	1.0	1.0	1.0	1.0	1.0	1.0
rated outlet water temperature	℃	95	95	95	95	95	95	95	95
rated inlet water temperature	℃	70	70	70	70	70	70	70	70
heating area	s.m.	23.6	43.1	95.6	146.8	175.5	220.3	368.7	431.6
active  grate area	s.m.	2	3.6	5.29	7.4	9.2	12.7	16.11	21.3
fuel	coal, biomass, biomass pellets, pellets, wood chips, wood pellets, sawdust, solid fuel, multi fuel, dual fuel...etc
coal consumption	kg/h	190	377	751	1099	1400	1853	2250	2980
exhaust gas temperature	℃	143	154.6	147	130	152	154	148.9	158
design efficiency	%	78.8	78.35	78.8	81	80.8	79.9	80.89	80.7
max transport weight	t	15	19	30.5	up 28 below7.5	up 32 below11	up 40  below32	up 32 below 29	up 32 below 37

       production courses     Company Information   Workshop We have totally five workshops which covers an area of nearly 3600 square meters and employ 600 person including more than 100 engineers and technicians. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001 certification.   Customers Our products have been exported to many countries all over the world, including Russia, Southeast Asia,  South America, North America, Africa, Mid-East, Romania, Mengolia, Vietnam, Indonesia, etc. The quality of products and our after-sale services have won us good reputation in the oversea market. So we warmly welcome cusotmers to pay a visit to our factory so that they will have a better idea about us and our products.   Certificates We have the ISO9001 certificate and the National Grade-A boiler certificate, also with the Green product certificate and many Patent for invention certificates, etc.   FAQ Q1: How to install a boiler? A1: Bangzi Boiler provides completed installation drawing and manual, or send engineer abroad for installation guidance   Q2:How many years is the boiler’s life span A2: The boiler is designed for 10years life span, but under good maintenance, usually the boiler can use at least 16years, Bangzi Boiler provide full life after-sales service to each sold boiler   Q3: How to choose a boiler model? A3: Confirm the type (steam or hot water), capacity, working pressure (or output temperature) and fuel(coal, biomass, gas or oil or other fuel) of the boiler, BangziBoiler will suggest a suitable model based on your usage.   Q4: How is the warranty term? A4: If any problems caused for quality during the warranty period, the Seller will repair or replace the broken parts for free, if the problem caused from the client’s side, the Seller will help supply the spare part at lowest cost.  Contact