Shandong Zhongjie Special Equipment (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 the Internet of Things. It has three factory areas on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop area being 83,000 square meters. Currently, it employs 710 people, including 247 engineering and technical personnel and 82 middle-level technical staff. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The pressure maintenance methods for biomass hot water boilers mainly include the following:
Natural Circulation Pressure Regulation: Natural circulation pressure regulation refers to the process of circulating hot water to the heating system through natural convection within the boiler. Under this method, there is a significant difference in height between the supply and return water pipes of the boiler, achieving natural circulation through the density differences of the hot water. This approach is suitable for small-scale biomass hot water boilers, characterized by simplicity and cost-effectiveness.
Forced Circulation Constant Pressure: This method involves using a circulating pump to force hot water to circulate through the heating system. Under forced circulation constant pressure, 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, characterized by stability.
Micro-positive Pressure Constant Pressure: Micro-positive pressure constant pressure maintains a slight positive pressure in the boiler system, ensuring stable circulation of hot water. Under the micro-positive pressure constant pressure method, the pressure within the boiler system is slightly higher than atmospheric pressure, driving the circulation of hot water through pressure difference. This method is suitable for situations requiring higher heating temperatures and longer heating distances.
Above are the common methods of setting pressure for biomass hot water boilers. Depending on specific usage requirements and system design, an appropriate setting 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, 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 to treat flue gases produced by combustion, reducing emissions of particulate matter and gaseous pollutants. Common flue gas purification equipment includes dust collectors, desulfurization units, denitrification units, etc., which can be selected according to emission standards and environmental protection requirements.
Heat Exchangers: Devices used to transfer the heat energy generated by combustion to water or other working fluids, achieving heat recovery and utilization. Heat exchangers commonly include water tube heat exchangers, flue gas waste heat boilers, etc., which can improve energy utilization efficiency.
Control System: Monitors and controls the operating parameters of biomass boilers, including temperature, pressure, and fuel supply. The control system can achieve automatic adjustment and protection functions to ensure the safe operation and performance of the boiler.
Equipment: Includes water supply systems, sewage systems, pressure vessels, fuel storage equipment, etc. These equipment are used to provide water for boilers, treat waste water, store fuel, etc., ensuring the normal operation of the boiler.
Above are some common auxiliary equipment for biomass boiler systems. Specific configurations and selections should be determined based on actual requirements and project specifications.

Adjusting the combustion of biomass boilers can be carried out through the following steps:
Establish Combustion Parameters: Determine appropriate combustion parameters based on the biomass boiler's design and fuel characteristics, including combustion temperature, oxygen supply, and fuel supply rate.
Adjust combustion temperature: Adjust the combustion temperature according to the fuel characteristics and combustion requirements. Excessive combustion temperature may lead to overburning of fuel and energy waste, while too low a combustion temperature may result in incomplete combustion and increased emissions.
Control 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 can result in incomplete combustion and increased emissions.
Adjust fuel supply rate: Adjust the fuel supply rate based on thermal load and fuel characteristics. An excessively high fuel supply rate may lead to overburning and energy waste, while an overly low rate may result in incomplete combustion and insufficient heating.
Monitoring and Adjustment: By monitoring key parameters during the combustion process, such as combustion temperature, oxygen content, flue gas composition, etc., adjust the combustion parameters in a timely manner to ensure the stability of the combustion process.
Note: Adjusting the combustion of biomass boilers requires consideration of the specific boiler.

The DZH steam boiler is a manually fired solid fuel boiler with the following technical features:
Burning Method: The DZH steam boiler utilizes a manual burning method, where the operator manually feeds fuel and adjusts the combustion process. This method is relatively simple and offers flexible operation, 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 straws. 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, with a partition between the combustion chambers. This design enhances both the temperature and combustion efficiency of the chambers, thereby improving thermal efficiency.
Flue Channels: The flue channels of the DZH steam boiler feature a spiral flue tube design, which increases the contact area between flue gas and water, enhancing the heat exchange efficiency. Additionally, a flue gas reversal chamber is installed within the flue channel, allowing the flue gas to circulate multiple times within the furnace, 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, ensuring the 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 spaces.
In summary, 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 visit our factory for business talks.