The Coal Mine Purchased Two 15 Ton Coal-fired Biomass Steam Boilers

 1. Project overview

This project is a coal fired boiler room for heating, heating, and shaft antifreeze in the industrial site of Hongqinghe Coal Mine. Four coal -fired steam boilers (three SZL15-1.25-AⅡ and one SZL4-1.25-AⅡ) have been installed in the boiler room , and two 15 t/h boilers are reserved.

Boiler room The boiler room is arranged on the first floor, the boiler is installed on the ±0.00 plane, the auxiliary room is arranged on the second floor (the first floor is the water treatment room, the second floor is the office), the front of the boiler room is the second floor arrangement, and the second floor is the coal transportation layer ; There is a dust removal fan room at the back of the boiler room; a control room is set at the front of the boiler room on the first floor. The joint arrangement of six boilers adopts the joint belt conveyor coal loading system and the joint mechanical slag discharge system. Directly supply 0.55~0.60MPa saturated steam to heat supply users. The heating medium of industrial buildings is prepared by the steam-water heat exchange system in the boiler room for 110~70℃ hot water supply. Public buildings (office buildings, employees The heating medium (85~60℃ and 60~50℃ hot water) is prepared by two sets of steam-water heat exchange systems in the office building. The flue gas of the operating boiler is dedusted and purified by the water film dust collector to achieve standard discharge, and finally discharged into the atmosphere through a 50m high brick chimney for high-altitude release; the boiler feed water is softened by the water treatment equipment and deoxidized, then enters the deoxygenated water tank, and is fed by the electric water pump Feed water to boiler.

The Hongqinghe Coal Mine is equipped with an advanced mine water treatment system. The design of the treatment system is implemented in two phases. The treatment capacity of the first phase is 300m3/h. After the implementation of the second phase, the total processing capacity will reach 600m3/h. In order to meet the requirements of the concentrated brine evaporation and crystallization process, it is necessary to add 2 new units with an evaporation capacity of 15t/h The steam boiler is used to supply steam for the concentrated brine evaporation and crystallization process equipment of the treatment system.

15 tons of coal-fired biomass steam boiler

SZL15-1.25-AⅡ type steam boiler should be selected for the newly added two coal-fired steam boilers. Economizer, speed control box, blower, induced draft fan and feed water pump and other equipment.

2. Environmental conditions

Location: Ejin Horo Banner, Ordos City, within the territory of Hongqinghe Town.

Altitude: 1300m～1400m.

Ambient temperature: -30℃～45℃.

Average air pressure: ~866hPa.

Power supply: 220V, 380V/50Hz (approved by the construction unit).

Installation conditions: indoor installation.

Types of coal used: ground coal or washed coal produced in this mine, with a low calorific value of about 22.8MJ/kg.

3. List of main equipment

Inner Mongolia Yonghe 2*25 tons SZL industrial chain grate coal-fired boiler project

• Project address: Inner Mongolia
• Equipment purchased: 2 sets of SZL25-1.25-AII
• Application field: chemical plant
• Medium classification: steam boiler

The project of two 25-ton szl chain grate steam boilers was signed in 2016. The customer company is a chemical plant, and the 25-ton steam boilers will be used in the production of chemical products. After half a year of installation, two industrial steam boilers were put into operation in the first half of 2017. Chemical plant boilers have a wide range of choices and different uses. Environmentally-friendly coal-fired steam boilers are currently the main equipment purchased by chemical companies in many non-key areas, because the country allows new coal-fired boilers of more than 20 tons, as long as they are equipped with corresponding out-of-stock The dust removal equipment can meet the boiler emission standard of Inner Mongolia.

The chain grate boiler and circulating fluidized bed boiler produced by ZBG are both coal-fired and biomass-fired dual-purpose furnaces, which can burn coal and biomass. The tonnage of the boiler is 4-280 tons per hour. Friends who need boilers are welcome to consult and purchase!