Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City, with a registered capital of 50 million yuan and total assets of 500 million yuan. The company has 7 business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 staff, including 247 engineering and technical personnel and 82 middle-level technicians. In December 2016, it was recognized as a "High-Tech Enterprise" by the Science and Technology Department. In June 2021, it was named a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was identified as a "Deer Enterprise in Shandong Province" and in August 2022, it was recognized as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The pressure setting methods for biomass hot water boilers mainly include the following:
Natural Circulation Pressure: Natural circulation pressure refers to the process of circulating hot water to the heating system through natural convection within the boiler. Under the natural circulation pressure method, there is a significant difference in elevation between the supply and return water pipes of the boiler, achieving natural circulation through the density difference of the hot water. This method is suitable for small-scale biomass hot water boilers, characterized by simplicity and economy.
Forced circulation constant pressure: This method involves using a circulating pump to force hot water to circulate through the heating system. Under the forced circulation constant pressure method, the boiler provides sufficient water pressure through the circulating pump to ensure smooth flow of hot water. This approach is suitable for large-scale biomass hot water boilers and boasts stability.
Micro-positive Pressure Constant Pressure: Micro-positive pressure constant pressure maintains a slight positive pressure in the boiler system, allowing for stable circulation of hot water. Under the micro-positive pressure constant pressure method, the pressure in the boiler system is slightly higher than atmospheric pressure, driving the circulation of hot water through the pressure difference. This method is suitable for situations requiring higher heating temperatures and greater heating distances.
Above are the common pressure maintenance methods for biomass hot water boilers. Depending on specific usage requirements and system design, an appropriate pressure maintenance method can be chosen to ensure the normal operation and heating effect of the hot water boiler.
Biomass boilers typically require auxiliary equipment to ensure their proper operation and utilization of biomass fuel. Here are some common auxiliary equipment:
Feeding System: Used to deliver biomass fuel to the combustion chamber of a boiler. The feeding system typically includes conveyors, screw conveyors, and vibratory feeders, among other equipment, which can be selected based on the fuel characteristics and boiler requirements.
Combustion System: Used for burning biomass fuel. The combustion system includes a combustion chamber, burners, fans, and other equipment, designed for achieving thorough mixing of fuel and air as well as controlling the combustion process.
Flue Gas Purification Equipment: Used for treating flue gases produced by combustion, reducing emissions of particulate matter and gas pollutants. Common flue gas purification equipment includes dust collectors, desulfurization units, denitrification units, etc., which can be selected based on emission standards and environmental protection requirements.
Heat Exchangers: Devices used to transfer the thermal energy produced by combustion to water or other working substances, achieving the recovery and utilization of thermal energy. Heat exchangers typically include pipe-type heat exchangers, flue gas waste heat boilers, etc., which can enhance energy utilization efficiency.
Control System: Monitors and controls operational parameters of biomass boilers, including temperature, pressure, and fuel supply. The control system enables automatic adjustment and protection functions to ensure the safe and efficient operation of the boiler.
Equipment: Includes water supply systems, waste discharge systems, pressure vessels, fuel storage equipment, etc. These devices are used to provide the water source required for boilers, treat wastewater, store fuel, and ensure the normal operation of the boiler.
Above are some common biomass boiler auxiliary equipment. The specific configuration and selection can be determined according to actual requirements and project specifications.
Adjusting the combustion of biomass boilers can be done through the following steps:
Establish Combustion Parameters: Determine appropriate combustion parameters based on the design of the biomass boiler and fuel characteristics, including combustion temperature, oxygen supply, and fuel feeding rate.
Adjust combustion temperature: Adjust the combustion temperature based on the fuel characteristics and combustion requirements. Excessive combustion temperature may lead to overburning of fuel and energy waste, while too low combustion temperature may result in incomplete combustion and increased emissions.
Regulate Oxygen Supply: Adjust the oxygen supply based on the oxygen content during the combustion process. Excessive oxygen supply can lead to incomplete fuel combustion and energy waste, while insufficient oxygen supply may result in inadequate combustion and increased emissions.
Adjust fuel supply rate: Adjust the fuel supply rate based on thermal load and fuel characteristics. Excessive fuel supply rate may lead to overburning and energy waste, while a low fuel supply rate may result in incomplete combustion and insufficient heating.
Monitoring and Adjustment: By monitoring critical parameters during the combustion process, such as combustion temperature, oxygen content, and flue gas composition, timely adjustments to combustion parameters are made to ensure stability in the combustion process.
Note: Adjusting the combustion of biomass boilers requires consideration of the specific kettle
The DZH steam boiler is a manually fueled solid fuel boiler featuring the following technical characteristics:
Fueling Method: The DZH steam boiler utilizes a manual fueling method, where the operator manually feeds the fuel and adjusts the combustion process. This method is relatively simple and flexible, suitable for small to medium-sized applications.
Multiple Fuel Adaptability: The DZH steam boiler boasts strong fuel adaptability, capable of burning solid fuels such as wood chips and straw. This feature allows the DZH steam boiler to be widely used in various regions and under different fuel resource conditions.
Chamber Structure: The DZH steam boiler features a double-chamber structure for its furnace, with a partition separating the combustion chambers. This design enhances the temperature and combustion efficiency of the chambers, thereby improving thermal efficiency.
Flue Channels: The DZH steam boiler features a spiral flue tube design in its flue channels, which increases the contact area between flue gas and water, enhancing heat exchange efficiency. Additionally, a flue gas reversal chamber is installed within the flue channels, allowing the flue gas to flow repeatedly within the furnace, thereby increasing the residence time of the flue gas and improving combustion efficiency.
Safety Protection: The DZH steam boiler is equipped with various safety devices, such as pressure controllers, water level controllers, and overheat protectors, to ensure safe operation of the boiler.
Compact Structure: The DZH steam boiler features a compact structure with minimal floor space, making it suitable for installation in limited areas.
Overall, the DZH steam boiler boasts strong fuel adaptability, flexible operation, and high thermal efficiency, making it suitable for small to medium-sized solid fuel steam demand scenarios.
Shandong Zhongjie Special Equipment, welcome customers to our factory for business discussions.




































