Environment-friendly biomass particle production formula and production process thereof

Abstract

The invention discloses an environment-friendly biomass particle production formula, and relates to the technical field of biomass particle production, and the environment-friendly biomass particle production formula comprises 500-800 parts of a biomass fiber raw material, 10-50 parts of an efficient combustion-supporting additive, 20-100 parts of an environment-friendly binder, 5-30 parts of a dust falling agent, 10-50 parts of a composite functional material and 10-30 parts of a waste heat recovery agent; the invention also discloses an environment-friendly biomass particle production process which comprises the following steps: pretreating a biomass fiber raw material; uniformly mixing the pretreated biomass raw material with the material; a waste heat recovery agent is added in the mixing process; performing extrusion forming on the mixture through a high-pressure granulator; the formed particles are subjected to later-stage drying treatment; and screening, packaging and storing the finished product particles. The environment-friendly biomass particle production formula and process provided by the invention have relatively good environment-friendly performance and high efficiency, and can effectively improve the combustion performance of the particles, reduce pollutant emission and improve the mechanical strength and durability of the particles.

Description

Technical Field

[0001] The present invention relates to the technical field of environmentally friendly biomass pellet production, and in particular to an environmentally friendly biomass pellet production formula and a production process thereof. Background Art

[0002] With the increasing severity of energy shortage and environmental pollution, biomass energy as a renewable energy source has received widespread attention. As an efficient and clean fuel, biomass pellets have important application prospects in energy production, industrial boilers, and household heating at home and abroad. However, there are often some problems in the traditional biomass pellet production process, including insufficient raw material processing, uneven pellet quality, weak bonding performance, and low combustion efficiency. In order to improve the overall performance and environmental friendliness of biomass pellets, many new environmentally friendly biomass pellet production technologies and formulas have been proposed. These new formulas can not only improve the energy efficiency of fuels, but also reduce pollutant emissions, meeting the requirements of sustainable development.

[0003] In the production process of traditional biomass pellets, more chemical additives are often used, and the particle density is low, resulting in poor calorific value and durability during combustion. In addition, due to the increasingly prominent environmental protection issues, how to reduce pollutant emissions, improve combustion efficiency, and ensure the moisture content and storage stability of the pellets during the production process has become an important direction for technological improvement. Therefore, the optimization of the formula and production process of environmentally friendly biomass pellets can not only effectively improve the combustion performance of biomass pellets, but also reduce the environmental load during the production process, thereby providing support for eco-friendly energy solutions. Summary of the invention

[0004] In order to solve the above technical problems, an environmentally friendly biomass pellet production formula and production process are provided. This technical solution solves the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] Environmentally friendly biomass pellet production formula, environmentally friendly biomass pellets are made from the following materials:

[0007] 500-800 parts of biomass fiber raw materials, 10-50 parts of high-efficiency combustion-supporting additives, 20-100 parts of environmentally friendly binders, 5-30 parts of dust suppressants, 10-50 parts of composite functional materials and 10-30 parts of waste heat recovery agents.

[0008] Preferably, the environmentally friendly biomass particles are prepared from the following materials:

[0009] 650 parts of material fiber raw materials, 30 parts of high-efficiency combustion-supporting additives, 60 parts of environmentally friendly binders, 18 parts of dust suppressants, 30 parts of composite functional materials and 20 parts of waste heat recovery agents.

[0010] Preferably, the biomass fiber raw materials include but are not limited to wood chips, straw, rice husks, corn cobs, bamboo chips, agricultural waste and wood residues;

[0011] The high-efficiency combustion-supporting additive is selected from high-temperature stable metal oxides, and the types of the metal oxides include but are not limited to aluminum oxides, calcium oxides and silicon oxides;

[0012] The environmentally friendly adhesive is selected from natural plant starch, natural resin and modified bio-based polymer, and its addition amount is controlled between 2% and 10% of the biomass fiber. The dust suppressant is mineral salts.

[0013] Environmentally friendly biomass pellet production process, including:

[0014] S1: pre-treating the biomass fiber raw materials, removing impurities and crushing them into particles of a certain size;

[0015] S2: Evenly mix the pretreated biomass raw materials with high-efficiency combustion-supporting additives, environmentally friendly binders, dust suppressants and composite functional materials;

[0016] S3: Add waste heat recovery agent during the mixing process and use low-temperature heating to heat treat the materials to ensure that the binder fully reacts and forms plasticity;

[0017] S4: extruding the mixture through a high-pressure pellet machine to form biomass pellets with high density and high durability;

[0018] S5: Cooling the formed particles in a low temperature environment and performing a post-drying process to ensure that the moisture content inside the particles is less than 10%;

[0019] S6: Screening, packaging and storage of finished particles.

[0020] Preferably, the S1 specifically includes:

[0021] The collected biomass fiber raw materials are preliminarily screened through an automated screening system to remove large impurities, stones, and incombustibles in the soil;

[0022] The screened biomass fiber raw materials are washed with water to remove fine dust, pesticide residues and other soluble impurities. After washing, excess water is removed by a centrifuge and preliminary drying is performed;

[0023] The sticky substances in the raw materials are removed based on ultrasonic cleaning technology. The molecular structure of the sticky substances is destroyed by ultrasonic vibration, so that they are separated from the biomass fibers.

[0024] The biomass raw materials after cleaning and impurity removal are finely crushed. A double-shaft counter-rotating crusher is used to crush the raw materials to a particle size of 2-6 mm under the condition of controlling the crushing temperature and speed. An online particle size detection system is added during the crushing process to adjust the crusher parameters according to real-time data to accurately control the particle size distribution.

[0025] Dry the crushed raw materials, remove excess moisture through the temperature and humidity control of the airflow drying system, while maintaining the consistency and uniformity of the particles;

[0026] Finally, the crushed and dried biomass fiber raw materials enter the particle screening equipment and are accurately classified according to the particle size. An automated screening system is used to select the raw materials suitable for pellet production according to different particle size requirements.

[0027] Preferably, the S2 specifically includes:

[0028] First, add the pretreated biomass raw materials into the mixing equipment, and gradually add the high-efficiency combustion-supporting additives to ensure uniform distribution and avoid local excess;

[0029] Add environmentally friendly binder, gently heat the binder solution during the addition process, then add dust suppressant, and finally add composite functional materials;

[0030] The mixing time is 5 to 10 minutes, and the speed is 50 to 100 revolutions per minute;

[0031] When adding liquid additives, add them gradually and mix continuously to ensure that the liquid is evenly distributed. After wet mixing is completed, perform preliminary drying to ensure that the moisture content of the mixture is within the set range;

[0032] After mixing is completed, take samples for inspection to ensure that all additives are fully mixed with the biomass raw materials and there is no obvious stratification and agglomeration;

[0033] By sampling and analyzing the proportion of each component in the material, check whether the high-efficiency combustion-supporting additives, environmentally friendly binders and dust suppressants are evenly distributed to ensure that they are evenly distributed in the entire mixture;

[0034] After the mixture is complete, allow it to rest and set to ensure that the binder reacts fully and forms a good bond.

[0035] Preferably, the S3 specifically includes:

[0036] The pretreated biomass raw materials are added to the mixing equipment, and a waste heat recovery agent of a set proportion is added during the mixing process;

[0037] Mix the materials evenly to ensure that the waste heat recovery agent, binder and other auxiliary materials are evenly distributed in the biomass raw materials. The mixing time is usually 5 to 10 minutes;

[0038] After mixing the materials, start heating gradually, control the temperature between 40-80℃ to evenly heat the materials, and control the heating time, which is 10 to 30 minutes;

[0039] During the heating process, the state of the material is continuously monitored to ensure that the reaction between the binder and the biomass raw material is complete. Whether the reaction is complete is determined by observing the adhesion and plasticity of the material.

[0040] After low-temperature heating, the material is slowly cooled to room temperature and cooled naturally. After cooling, samples are taken for testing to check the plasticity of the material and ensure that it has sufficient formability and strength.

[0041] Through sampling and analysis, ensure that the waste heat recovery agent and binder in the mixed material are evenly distributed. If uneven distribution is found, gently mix again.

[0042] Preferably, the S4 specifically includes:

[0043] Prepare the mixed and heat-treated materials, and feed the evenly mixed materials into the feed port of the pellet machine through the conveying equipment for preheating;

[0044] In the high-pressure pellet machine, after the material enters the heating zone, it is squeezed by mechanical pressure, and the material particles stick together to form solid pellets;

[0045] The pellet machine is maintained in a temperature range of 80-100°C while applying pressure;

[0046] After the material is extruded through the pellet machine’s die, it is cooled;

[0047] During the molding process, the quality of the particles should be checked regularly to check the density, shape and hardness of the particles. If the particles do not meet the requirements, adjust the equipment parameters and the raw material ratio;

[0048] After extrusion, the pellets enter a cooling system.

[0049] Preferably, the S5 specifically includes:

[0050] The particles are cooled by natural air drying, and the speed of temperature change is controlled during cooling, and the cooling environment temperature is maintained at 10-25°C;

[0051] The cooled pellets are sent to the drying room and dried with constant temperature and low humidity air. The drying temperature is maintained between 40-60°C. The moisture content of the pellets is regularly monitored by an electronic moisture meter to ensure that it is less than 10%;

[0052] If the moisture content does not meet the requirements, increase the drying time and adjust the drying temperature and air flow to ensure uniform evaporation of the moisture inside the particles.

[0053] Preferably, the S6 specifically includes:

[0054] Use vibrating screening equipment to make particles pass through screens of different apertures through high-speed vibration, thereby separating particles according to different sizes and removing unqualified particles, including particles with irregular shapes, damaged surfaces, and tiny dust;

[0055] Use plastic bags for packaging, and indicate the production batch, production date, quality grade and net content on the bags;

[0056] Biomass pellets should be stored in a dry and ventilated warehouse, and the storage environment temperature should be kept at room temperature;

[0057] Regularly check the temperature and humidity environment of the warehouse as well as the appearance and quality of the pellets.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] The environmentally friendly biomass pellet production formula and process provided by the present invention have good environmental performance and high efficiency, can effectively improve the combustion performance of pellets, reduce pollutant emissions, improve the mechanical strength and durability of pellets, and achieve efficient use of energy through advanced process technology during the production process. By optimizing raw materials, additives and production processes, it is possible to reduce environmental pollution and resource waste while ensuring pellet quality, and promote the widespread application of biomass pellets in the energy industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a flowchart of the preparation steps of the present invention. DETAILED DESCRIPTION

[0061] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0062] Reference Figure 1 As shown in the figure, the production formula of environmentally friendly biomass pellets, the environmentally friendly biomass pellets are prepared from the following materials:

[0063] 500-800 parts of biomass fiber raw materials, 10-50 parts of high-efficiency combustion-supporting additives, 20-100 parts of environmentally friendly binders, 5-30 parts of dust suppressants, 10-50 parts of composite functional materials and 10-30 parts of waste heat recovery agents.

[0064] Preferably, the environmentally friendly biomass particles are prepared from the following materials:

[0065] 650 parts of material fiber raw materials, 30 parts of high-efficiency combustion-supporting additives, 60 parts of environmentally friendly binders, 18 parts of dust suppressants, 30 parts of composite functional materials and 20 parts of waste heat recovery agents.

[0066] The biomass fiber raw materials include but are not limited to wood chips, straw, rice husks, corn cobs, bamboo chips, agricultural waste and wood residues;

[0067] The high-efficiency combustion-supporting additive is selected from high-temperature stable metal oxides, and the types of the metal oxides include but are not limited to aluminum oxides, calcium oxides and silicon oxides;

[0068] The environmentally friendly adhesive is selected from natural plant starch, natural resin and modified bio-based polymer, and its addition amount is controlled between 2% and 10% of the biomass fiber. The dust suppressant is mineral salts.

[0069] Step 1:

[0070] The collected biomass fiber raw materials are preliminarily screened through an automated screening system to remove large impurities, stones, and incombustibles in the soil;

[0071] The screened biomass fiber raw materials are washed with water to remove fine dust, pesticide residues and other soluble impurities. After washing, excess water is removed by a centrifuge and preliminary drying is performed;

[0072] The sticky substances in the raw materials are removed based on ultrasonic cleaning technology. The molecular structure of the sticky substances is destroyed by ultrasonic vibration, so that they are separated from the biomass fibers.

[0073] The biomass raw materials after cleaning and impurity removal are finely crushed. A double-shaft counter-rotating crusher is used to crush the raw materials to a particle size of 2-6 mm under the condition of controlling the crushing temperature and speed. An online particle size detection system is added during the crushing process to adjust the crusher parameters according to real-time data to accurately control the particle size distribution.

[0074] Dry the crushed raw materials, remove excess moisture through the temperature and humidity control of the airflow drying system, while maintaining the consistency and uniformity of the particles;

[0075] Finally, the crushed and dried biomass fiber raw materials enter the particle screening equipment and are accurately classified according to the particle size. An automated screening system is used to select the raw materials suitable for pellet production according to different particle size requirements.

[0076] Step 2:

[0077] First, add the pretreated biomass raw materials into the mixing equipment, and gradually add the high-efficiency combustion-supporting additives to ensure uniform distribution and avoid local excess;

[0078] Add environmentally friendly binder, gently heat the binder solution during the addition process, then add dust suppressant, and finally add composite functional materials;

[0079] The mixing time is 5 to 10 minutes, and the speed is 50 to 100 revolutions per minute;

[0080] When adding liquid additives, add them gradually and mix continuously to ensure that the liquid is evenly distributed. After wet mixing is completed, perform preliminary drying to ensure that the moisture content of the mixture is within the set range;

[0081] After mixing is completed, take samples for inspection to ensure that all additives are fully mixed with the biomass raw materials and there is no obvious stratification and agglomeration;

[0082] By sampling and analyzing the proportion of each component in the material, check whether the high-efficiency combustion-supporting additives, environmentally friendly binders and dust suppressants are evenly distributed to ensure that they are evenly distributed in the entire mixture;

[0083] After the mixture is complete, allow it to rest and set to ensure that the binder reacts fully and forms a good bond.

[0084] Step 3:

[0085] The pretreated biomass raw materials are added to the mixing equipment, and a waste heat recovery agent of a set proportion is added during the mixing process;

[0086] Mix the materials evenly to ensure that the waste heat recovery agent, binder and other auxiliary materials are evenly distributed in the biomass raw materials. The mixing time is usually 5 to 10 minutes;

[0087] After mixing the materials, start heating gradually, control the temperature between 40-80℃ to evenly heat the materials, and control the heating time, which is 10 to 30 minutes;

[0088] During the heating process, the state of the material is continuously monitored to ensure that the reaction between the binder and the biomass raw material is complete. Whether the reaction is complete is determined by observing the adhesion and plasticity of the material.

[0089] After low-temperature heating, the material is slowly cooled to room temperature and cooled naturally. After cooling, samples are taken for testing to check the plasticity of the material and ensure that it has sufficient formability and strength.

[0090] Through sampling and analysis, ensure that the waste heat recovery agent and binder in the mixed material are evenly distributed. If uneven distribution is found, gently mix again.

[0091] Step 4:

[0092] Prepare the mixed and heat-treated materials, and feed the evenly mixed materials into the feed port of the pellet machine through the conveying equipment for preheating;

[0093] In the high-pressure pellet machine, after the material enters the heating zone, it is squeezed by mechanical pressure, and the material particles stick together to form solid pellets;

[0094] The pellet machine is maintained in a temperature range of 80-100°C while applying pressure;

[0095] After the material is extruded through the pellet machine’s die, it is cooled;

[0096] During the molding process, the quality of the particles should be checked regularly to check the density, shape and hardness of the particles. If the particles do not meet the requirements, adjust the equipment parameters and the raw material ratio;

[0097] After extrusion, the pellets enter a cooling system.

[0098] Step 5:

[0099] The particles are cooled by natural air drying, and the speed of temperature change is controlled during cooling, and the cooling environment temperature is maintained at 10-25°C;

[0100] The cooled pellets are sent to the drying room and dried with constant temperature and low humidity air. The drying temperature is maintained between 40-60°C. The moisture content of the pellets is regularly monitored by an electronic moisture meter to ensure that it is less than 10%;

[0101] If the moisture content does not meet the requirements, increase the drying time and adjust the drying temperature and air flow to ensure uniform evaporation of the moisture inside the particles.

[0102] Step 6:

[0103] Use vibrating screening equipment to make particles pass through screens of different apertures through high-speed vibration, thereby separating particles according to different sizes and removing unqualified particles, including particles with irregular shapes, damaged surfaces, and tiny dust;

[0104] Use plastic bags for packaging, and indicate the production batch, production date, quality grade and net content on the bags;

[0105] Biomass pellets should be stored in a dry and ventilated warehouse, and the storage environment temperature should be kept at room temperature;

[0106] Regularly check the temperature and humidity environment of the warehouse as well as the appearance and quality of the pellets.

[0107] In summary, the advantages of the present invention are:

[0108] By using high-efficiency combustion-supporting additives, the combustion performance of biomass particles is significantly improved. Metal oxides have high thermal stability, which can promote combustion reactions at high temperatures, increase calorific value, reduce incomplete combustion, and reduce the emission of pollutants generated during the combustion process.

[0109] The use of environmentally friendly binders enhances the bonding properties of the particles, allowing the particles to form a stable structure during the production process, and improves the density and durability of the particles. This makes the formed particles not only have better mechanical strength, but also not easy to break during transportation and storage, thus avoiding the loss of particles;

[0110] The use of dust suppressants effectively inhibits dust generation during the production process, improves the working environment, and reduces air pollution during the production process. This not only improves the environmental friendliness of the product, but also reduces the harm of dust to equipment and operators.

[0111] The use of waste heat recovery agent can recover part of the waste heat during the heat treatment process and improve energy utilization, which not only reduces energy consumption in the production process, but also reduces heat energy loss and optimizes the overall production process;

[0112] The formula uses a variety of agricultural waste and wood residues as biomass fiber raw materials, which not only reduces dependence on forest resources, but also effectively utilizes agricultural waste and reduces resource waste;

[0113] The sophisticated pretreatment process ensures the purity and uniformity of the biomass fiber raw materials, making the mixed particles more stable and of more uniform quality. The precise control of the crushing process and particle size classification also greatly improve the yield rate and production efficiency of the particles.

[0114] The environmentally friendly binders, dust suppressants and other auxiliary materials used in the production process are all natural or modified bio-based materials, which meet the requirements of green production, reduce the use of harmful chemicals, and make the final biomass particles meet the concept of sustainable development;

[0115] In the pellet production process, the finely controlled crushing, mixing, heating, extrusion and other processes have improved the automation of the production line, reduced manual operation errors, and thus improved production efficiency and product consistency. By controlling the drying, cooling and other process links, the moisture content of the pellets is ensured to be stable within the ideal range, avoiding pellet quality problems caused by excessive or low moisture.

[0116] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. Environmentally friendly biomass pellet production formula, characterized in that: Environmentally friendly biomass pellets are made from the following materials: 500-800 parts of biomass fiber raw materials, 10-50 parts of high-efficiency combustion-supporting additives, 20-100 parts of environmentally friendly binders, 5-30 parts of dust suppressants, 10-50 parts of composite functional materials and 10-30 parts of waste heat recovery agents.

2. The environmentally friendly biomass pellet production formula according to claim 1, characterized in that: The environmentally friendly biomass particles are specifically prepared from the following materials: 650 parts of material fiber raw materials, 30 parts of high-efficiency combustion-supporting additives, 60 parts of environmentally friendly binders, 18 parts of dust suppressants, 30 parts of composite functional materials and 20 parts of waste heat recovery agents.

3. The environmentally friendly biomass pellet production formula according to claim 1, characterized in that: The biomass fiber raw materials include but are not limited to wood chips, straw, rice husks, corn cobs, bamboo chips, agricultural waste and wood residues; The high-efficiency combustion-supporting additive is selected from high-temperature stable metal oxides, and the types of the metal oxides include but are not limited to aluminum oxides, calcium oxides and silicon oxides; The environmentally friendly adhesive is selected from natural plant starch, natural resin and modified bio-based polymer, and its addition amount is controlled between 2% and 10% of the biomass fiber. The dust suppressant is mineral salts.

4. Environmentally friendly biomass pellet production process, characterized in that: include: S1: pre-treating the biomass fiber raw materials, removing impurities and crushing them into particles of a certain size; S2: Evenly mix the pretreated biomass raw materials with high-efficiency combustion-supporting additives, environmentally friendly binders, dust suppressants and composite functional materials; S3: Add waste heat recovery agent during the mixing process and use low-temperature heating to heat treat the materials to ensure that the binder fully reacts and forms plasticity; S4: extruding the mixture through a high-pressure pellet machine to form biomass pellets with high density and high durability; S5: Cooling the formed particles in a low temperature environment and performing a post-drying process to ensure that the moisture content inside the particles is less than 10%; S6: Screening, packaging and storage of finished particles.

5. The environmentally friendly biomass particle production process according to claim 4, characterized in that: The S1 specifically includes: The collected biomass fiber raw materials are preliminarily screened through an automated screening system to remove large impurities, stones, and incombustibles in the soil; The screened biomass fiber raw materials are washed with water to remove fine dust, pesticide residues and other soluble impurities. After washing, excess water is removed by a centrifuge and preliminary drying is performed; The sticky substances in the raw materials are removed based on ultrasonic cleaning technology. The molecular structure of the sticky substances is destroyed by ultrasonic vibration, so that they are separated from the biomass fibers. The biomass raw materials after cleaning and impurity removal are finely crushed. A double-shaft counter-rotating crusher is used to crush the raw materials to a particle size of 2-6 mm under the condition of controlling the crushing temperature and speed. An online particle size detection system is added during the crushing process to adjust the crusher parameters according to real-time data to accurately control the particle size distribution. Dry the crushed raw materials, remove excess moisture through the temperature and humidity control of the airflow drying system, while maintaining the consistency and uniformity of the particles; Finally, the crushed and dried biomass fiber raw materials enter the particle screening equipment and are accurately classified according to the particle size. An automated screening system is used to select the raw materials suitable for pellet production according to different particle size requirements.

6. The environmentally friendly biomass particle production process according to claim 5, characterized in that: The S2 specifically includes: First, add the pretreated biomass raw materials into the mixing equipment, and gradually add the high-efficiency combustion-supporting additives to ensure uniform distribution and avoid local excess; Add environmentally friendly binder, gently heat the binder solution during the addition process, then add dust suppressant, and finally add composite functional materials; The mixing time is 5 to 10 minutes, and the speed is 50 to 100 revolutions per minute; When adding liquid additives, add them gradually and mix continuously to ensure that the liquid is evenly distributed. After wet mixing is completed, perform preliminary drying to ensure that the moisture content of the mixture is within the set range; After mixing is completed, take samples for inspection to ensure that all additives are fully mixed with the biomass raw materials and there is no obvious stratification and agglomeration; By sampling and analyzing the proportion of each component in the material, check whether the high-efficiency combustion-supporting additives, environmentally friendly binders and dust suppressants are evenly distributed to ensure that they are evenly distributed in the entire mixture; After the mixture is complete, allow it to rest and set to ensure that the binder reacts fully and forms a good bond.

7. The environmentally friendly biomass particle production process according to claim 6, characterized in that: The S3 specifically includes: The pretreated biomass raw materials are added to the mixing equipment, and a waste heat recovery agent of a set proportion is added during the mixing process; Mix the materials evenly to ensure that the waste heat recovery agent, binder and other auxiliary materials are evenly distributed in the biomass raw materials. The mixing time is usually 5 to 10 minutes; After mixing the materials, start heating gradually, control the temperature between 40-80℃ to evenly heat the materials, and control the heating time, which is 10 to 30 minutes; During the heating process, the state of the material is continuously monitored to ensure that the reaction between the binder and the biomass raw material is complete. Whether the reaction is complete is determined by observing the adhesion and plasticity of the material. After low-temperature heating, the material is slowly cooled to room temperature and cooled naturally. After cooling, samples are taken for testing to check the plasticity of the material and ensure that it has sufficient formability and strength. Through sampling and analysis, ensure that the waste heat recovery agent and binder in the mixed material are evenly distributed. If uneven distribution is found, gently mix again.

8. The environmentally friendly biomass particle production process according to claim 7, characterized in that: The S4 specifically includes: Prepare the mixed and heat-treated materials, and feed the evenly mixed materials into the feed port of the pellet machine through the conveying equipment for preheating; In the high-pressure pellet machine, after the material enters the heating zone, it is squeezed by mechanical pressure, and the material particles stick together to form solid pellets; The pellet machine is maintained in a temperature range of 80-100°C while applying pressure; After the material is extruded through the pellet machine’s die, it is cooled; During the molding process, the quality of the particles should be checked regularly to check the density, shape and hardness of the particles. If the particles do not meet the requirements, adjust the equipment parameters and the raw material ratio; After extrusion, the pellets enter a cooling system.

9. The environmentally friendly biomass particle production process according to claim 8, characterized in that: The S5 specifically includes: The particles are cooled by natural air drying, and the speed of temperature change is controlled during cooling, and the cooling environment temperature is maintained at 10-25°C; The cooled pellets are sent to the drying room and dried using constant temperature and low humidity air. The drying temperature is maintained between 40-60°C. The moisture content of the pellets is regularly monitored by an electronic moisture meter to ensure that it is less than 10%; If the moisture content does not meet the requirements, increase the drying time and adjust the drying temperature and air flow to ensure uniform evaporation of the moisture inside the particles.

10. The environmentally friendly biomass particle production process according to claim 9, characterized in that: The S6 specifically includes: Use vibrating screening equipment to make particles pass through screens of different apertures through high-speed vibration, thereby separating particles according to different sizes and removing unqualified particles, including particles with irregular shapes, damaged surfaces, and tiny dust; Use plastic bags for packaging, and indicate the production batch, production date, quality grade and net content on the bags; Biomass pellets should be stored in a dry and ventilated warehouse, and the storage environment temperature should be kept at room temperature; Regularly check the temperature and humidity environment of the warehouse as well as the appearance and quality of the pellets.

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