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-freezing 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 of 200,000 square meters. The main workshop spans 83,000 square meters. It currently employs 710 staff, including 247 engineers and technicians and 82 intermediate-level technicians. 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 named a "Gazelle 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.
In the technical aspect of biomass boilers, the following three issues need to be addressed with emphasis:
Increased Combustion Efficiency: Biomass fuel has different characteristics from traditional fossil fuels, which often produces particles like straw and wood chips during combustion, leading to lower combustion efficiency. Therefore, research and improvement of combustion systems, optimization of the combustion process, and enhancement of combustion efficiency are required to minimize energy waste.
High-Temperature Corrosion Issue: Ash and elements like chlorine in biomass fuel are prone to cause corrosion at high temperatures, damaging the metal components of boilers. To address the high-temperature corrosion issue, the development and application of corrosion-resistant materials, as well as controlling combustion conditions, are necessary to minimize corrosion.
Ash disposal and utilization: Biomass fuel produces a large amount of ash during combustion, including waste, ash content, and unburnt materials. The handling and disposal of ash is a significant issue, necessitating the development and application of ash handling technologies, including ash recycling, resource utilization, and chemical treatment.
By addressing these three issues, the combustion efficiency of biomass boilers can be further enhanced, the risk of corrosion reduced, and the effective processing and utilization of ash and slag achieved, promoting the sustainable development of biomass energy.

The utilization of waste heat from biomass boilers is a crucial method for enhancing energy efficiency and reducing energy consumption and emissions. Below are some common applications and analyses of waste heat utilization technologies in biomass boilers:
Eco-friendly Air Preheater: The flue gas produced by biomass boiler combustion contains a significant amount of heat energy. The eco-friendly air preheater can recover and utilize the excess heat in the flue gas to preheat the air entering the boiler, thereby improving combustion efficiency. Through waste heat recovery, fuel consumption can be reduced and flue gas emissions can be minimized.
Economizer: An economizer is a device used to recover waste heat from flue gas. By transferring the heat from the flue gas to the boiler feed water, it increases the feed water temperature and reduces fuel consumption. The application of an economizer can effectively lower the flue gas temperature of the boiler and improve its thermal efficiency.
Flue Gas Heat Recovery Boiler: A flue gas heat recovery boiler is a device that utilizes the excess heat from biomass boiler flue gases to generate steam or hot water. By converting the excess heat in flue gases into usable thermal energy, it achieves the reuse of energy and improves energy utilization efficiency.
Direct Utilization of Flue Gas: The waste heat in biomass boiler flue gas can be directly used for heating or drying processes, reducing the demand for other energy sources. For instance, the flue gas can be transported through chimneys or pipelines to the locations requiring heating, utilizing the thermal energy of the flue gas directly.
Flue Gas Heat Recovery System: The flue gas heat recovery system captures and utilizes the waste heat from biomass boiler flue gases, supplying it to other equipment or systems such as air conditioning, heating, and hot water. This enables comprehensive energy utilization and enhances overall energy efficiency.

To prevent high-temperature corrosion in biomass boilers, the following measures can be taken:
Select appropriate materials: Choose corrosion-resistant metal materials for boiler components, such as stainless steel and heat-resistant steel. These materials offer excellent corrosion resistance and can maintain stability in high-temperature and corrosive environments.
Control combustion conditions: Reasonably control parameters such as the temperature, oxygen content, and combustion rate of biomass combustion to avoid excessive temperatures and oxygen, thereby reducing corrosion.
Pre-treatment Fuel: Preprocess biomass fuel, such as drying, sieving, and decontamination, to reduce ash and salt content in the fuel, and minimize the risk of corrosion.
Regulate acidic substances in flue gas: By adding corrosion inhibitors or flue gas treatment devices, control the acidic substance content in flue gas, and reduce its corrosive effect on metal surfaces.
Regular Cleaning and Maintenance: Regularly clean the internal ash and dirt from the boiler to maintain its cleanliness. During the cleaning process, use appropriate cleaning agents and tools to remove internal dirt from the boiler, preventing corrosion.
Regular inspections and maintenance: Regularly inspect and maintain biomass boilers to promptly identify and address corrosion issues. Delegate maintenance personnel for regular check-ups and maintenance work.

The brief steps for the biomass boiler drying kiln are as follows:
Prepare fuel: Select suitable biomass fuel such as wood chips, straw, etc., and conduct necessary pretreatment like drying and crushing to enhance combustion efficiency.
Ignition: Place the fuel into the combustion chamber and ignite to start the combustion process. An igniter or other suitable tool can be used for ignition.
Control the combustion process: Adjust the oxygen supply and fuel supply during combustion as needed to control the combustion temperature and heat output. This can be achieved by adjusting the burner's switch, control panel, or an automatic control system.
Oven Operation: Place the items to be baked into the oven according to specific baking requirements and ensure even heating. Depending on the oven's design and requirements, appropriate measures can be taken, such as adjusting the combustion chamber temperature and flue ventilation, to achieve ideal baking results.
Monitoring and Adjustment: During the furnace process, it is necessary to monitor the combustion status, heat output, and furnace effect. Adjust the combustion parameters and operating methods in a timely manner based on actual conditions to ensure the stable operation of the furnace and the required furnace effect.
Shut down and Clean: After the furnace operation is completed, stop the fuel supply and wait for the combustion chamber to cool down. Once the combustion chamber is fully cooled, proceed with the cleaning and maintenance of the furnace chamber, removing ash and dirt generated during the combustion process.
Above are the brief steps for the biomass boiler drying kiln. The specific operation process and precautions should be based on the boiler model, drying kiln requirements, and the manufacturer's instructions. During the operation,
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