Biomass combustion particle raw material treatment equipment

Abstract

The utility model discloses biomass combustion particle raw material processing equipment, relates to the technical field of biomass particle manufacturing, solves the technical problem that in the existing technical scheme, impurities cannot be rapidly removed through winnowing, and drying and sectioning cannot be rapidly carried out, and comprises a main base, stand columns are fixedly installed on the main base, an impurity removal chamber is fixedly installed between the stand columns, and the impurity removal chamber is provided with an air inlet. The lower end of the side wall surface of the impurity removal chamber is provided with a heating air supply structure, and the upper end of the impurity removal chamber is provided with a negative pressure impurity filtering structure. The drying, winnowing and sectioning integration is realized, the problems of low efficiency and impurity residue of traditional step-by-step treatment are solved, and the purity of raw materials and the treatment efficiency are both improved; the whole process is automatic, and manual intervention and loss are reduced; the air flow path is optimized through the air direction guide plate, the drying uniformity and the winnowing effect are improved, and air flow dead angles and treatment instability of traditional equipment are avoided; the modular design is convenient to maintain, the downtime is reduced, and the production continuity is guaranteed; drying and winnowing are performed synchronously, so that energy consumption is reduced, and combustion pollutants are reduced.

Description

Technical Field

[0001] This utility model relates to the field of biomass production technology, specifically to a biomass combustion pellet raw material processing equipment. Background Technology

[0002] This invention relates to the technical field of biomass combustion pellets, which are a crucial clean and renewable energy source in the production and processing of existing energy products. In this process, biomass combustion pellet raw material processing equipment plays a key role, directly determining the quality of raw material processing and profoundly affecting the subsequent pellet production efficiency and quality. This equipment is multifunctional, encompassing multiple stages including raw material pretreatment, drying and dehydration, mixing and stirring, and conveying and storage. Through various screening devices, it can accurately remove impurities such as soil, stones, and metal fragments from raw materials such as straw, sawdust, and rice husks, and crush them to a suitable particle size. Simultaneously, the efficient drying system can precisely control temperature and time according to the characteristics of the raw materials to reduce moisture content. A powerful mixing and stirring function ensures that different raw materials are fully mixed in proportion, with the addition of binders and other additives when necessary. A rationally designed internal conveying system and storage device ensure the smooth flow of raw materials to the next production stage, maintaining the continuity and stability of production.

[0003] From an equipment perspective, its application has yielded significant results. With the booming development of the biomass energy industry, the demand for this equipment will continue to rise, requiring continuous innovation and research to meet the evolving needs of the industry. Existing technical solutions suffer from limitations in rapidly removing impurities through air separation and initiating drying and segmentation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a biomass combustion pellet raw material processing device, which solves the technical problems of existing technical solutions that cannot quickly remove impurities through air classification and dry and cut the pellets.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a biomass combustion pellet raw material processing device, including a main base, on which columns are fixedly installed, and a cleaning chamber is fixedly installed between the columns. A heating and air supply structure is provided at the lower end of the side wall of the cleaning chamber, a negative pressure filtering structure is provided at the upper end of the cleaning chamber, a raw material cutting structure is provided at the upper end of the cleaning chamber, and a discharge structure is provided at the lower end of the cleaning chamber.

[0006] Preferably, the raw material cutting structure includes a feeding hopper, a guide tube at the lower end of the feeding hopper, the guide tube being connected to the upper end of the impurity removal chamber, a rotating cutting part on the guide tube, a feeding part at the lower end of the guide tube, and a feeding cover at the upper end of the feeding hopper.

[0007] Preferably, the rotary cutting part includes a cutting motor, which is fixedly installed on the upper end of the guide tube, and a cutting blade is fixedly installed on the driving end of the cutting motor.

[0008] Preferably, the feeding unit includes an electric roller, which is installed between the lower ends of the guide tubes, and the electric rollers are installed in parallel. The electric rollers are provided with anti-slip sleeves.

[0009] Preferably, the heating and air supply structure includes an air supply pipe, the output end of which is fixedly connected to the lower end of the side wall of the impurity removal chamber, a ventilation plate is provided at the output end of the air supply pipe, an air supply fan is provided inside the air supply pipe, a front filter cloth is provided at the input end of the air supply pipe, and a heating resistance wire is provided at the lower end of the ventilation plate.

[0010] Preferably, the negative pressure filtration structure includes a negative pressure fan, a negative pressure pipe is provided at the output end of the negative pressure fan, the negative pressure pipe is vertically installed at the upper output end of the impurity removal chamber, a dust filter box is provided at the output end of the negative pressure pipe, an impurity box is provided at the lower end of the negative pressure pipe, and filter plates are provided at the input and output ends of the impurity box.

[0011] Preferably, the discharge structure includes a discharge pipe connected to the lower output end of the impurity removal chamber, and a pair of conveyor rollers are installed inside the discharge pipe, with a conveyor belt connected to the conveyor rollers.

[0012] Preferably, a wind direction guide plate is fixedly installed in the impurity removal chamber and at the input end of the negative pressure impurity filtering structure.

[0013] Beneficial effects

[0014] This invention provides a biomass combustion pellet feedstock processing device. This device integrates drying, air classification, and segmentation, solving the problems of low efficiency and impurity residue in traditional step-by-step processing, thus improving both feedstock purity and processing efficiency. The entire process is automated, reducing manual intervention and waste. An airflow guide plate optimizes the airflow path, improving drying uniformity and air classification effect, avoiding airflow dead zones and processing instability common in traditional equipment. The modular design facilitates maintenance, reduces downtime, and ensures continuous production. Simultaneous drying and air classification reduce energy consumption, and precise impurity removal reduces combustion pollutant generation. High-efficiency processing improves the utilization rate of biomass feedstock, meeting the needs of clean production and resource utilization, and combining economic and environmental benefits. Attached Figure Description

[0015] Figure 1 This is a front cross-sectional view of the biomass combustion pellet feedstock processing equipment described in this utility model.

[0016] Figure 2 This is a partial side view cross-sectional structural diagram of the biomass combustion pellet raw material processing equipment described in this utility model.

[0017] In the diagram: 1. Main base; 2. Column; 3. Impurity removal chamber; 4. Feed hopper; 5. Guide pipe; 6. Feed cover; 7. Cutting motor; 8. Cutting motor; 9. Cutting blade; 10. Electric roller; 11. Air supply pipe; 12. Ventilation plate; 13. Air supply fan; 14. Front filter cloth; 15. Heating resistance wire; 16. Negative pressure fan; 17. Negative pressure pipe; 18. Dust filter box; 19. Impurity box; 20. Filter plate; 21. Discharge pipe; 22. Conveyor roller; 23. Conveyor belt; 24. Air direction guide plate; Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Detailed description follows.

[0019] Please see Figure 1-2 This utility model provides a technical solution: a biomass combustion pellet raw material processing device, including a main base 1, on which columns 2 are fixedly installed, and a cleaning chamber 3 is fixedly installed between the columns 2. A heating and air supply structure is provided at the lower end of the side wall of the cleaning chamber 3, a negative pressure filtering structure is provided at the upper end of the cleaning chamber 3, a raw material cutting structure is provided at the upper end of the cleaning chamber 3, and a discharge structure is provided at the lower end of the cleaning chamber 3.

[0020] In this embodiment, the raw material cutting structure includes a feeding hopper 4, a guide tube 5 is provided at the lower end of the feeding hopper 4, the guide tube 5 is connected to the upper end of the impurity removal chamber 3, a rotating cutting part is provided on the guide tube 5, a feeding part is provided at the lower end of the guide tube 5, and a feeding cover 6 is provided at the upper end of the feeding hopper 4.

[0021] In this embodiment, the rotating cutting part includes a cutting motor 7, which is fixedly installed on the upper end of the guide tube 5, and a cutting blade 9 is fixedly installed on the driving end of the cutting motor 7.

[0022] In this embodiment, the feeding part includes an electric roller 10, which is installed between the lower ends of the guide tubes 5. The electric rollers 10 are installed in parallel, and an anti-slip sleeve is provided on the electric roller 10.

[0023] In this embodiment, the heating and air supply structure includes an air supply pipe 11, the output end of which is fixedly connected to the lower end of the side wall of the impurity removal chamber 3, a ventilation plate 12 is provided at the output end of the air supply pipe 11, an air supply fan 13 is provided inside the air supply pipe 11, a front filter cloth 14 is provided at the input end of the air supply pipe 11, and a heating resistance wire 15 is provided at the lower end of the ventilation plate 12.

[0024] In this embodiment, the negative pressure filtration structure includes a negative pressure fan 16, a negative pressure pipe 17 is provided at the output end of the negative pressure fan 16, the negative pressure pipe 17 is vertically installed at the upper output end of the impurity removal chamber 3, a dust filter box 18 is provided at the output end of the negative pressure pipe 17, an impurity box 19 is provided at the lower end of the negative pressure pipe 17, and a filter plate 20 is provided at the input and output ends of the impurity box 19.

[0025] In this embodiment, the discharge structure includes a discharge pipe 21, which is connected to the lower output end of the impurity removal chamber 3. A pair of conveyor rollers 22 are installed inside the discharge pipe 21, and a conveyor belt 23 is connected to the conveyor rollers 22.

[0026] In this embodiment, a wind direction guide plate 24 is fixedly installed inside the impurity removal chamber 3 and at the input end of the negative pressure impurity filtering structure.

[0027] Its detailed connection methods are well-known technologies in this field; such as Figure 1-2 As shown, the main base 1 and column 2 are not loose, the impurity removal chamber 3 is well sealed with the heating and air supply structure and the negative pressure filter structure pipes, and the tension of the discharge pipe 21 and conveyor belt 23 is appropriate. Add lubricating oil to the bearings of the cutting motor 7 and the shaft of the electric drum 10, and check whether the sealing ring of the feeding cover 6 is intact to ensure that there is no dust leakage. Connect the power supply and test whether the rotation direction of the air supply fan 13, the negative pressure fan 16, the cutting motor 7 and other components is correct, and whether the heating resistance wire 15 heats up evenly (the preset temperature range is 50-80℃, which should be adjusted according to the moisture content of the raw material).

[0028] Open the feeding cover 6 and evenly pour biomass raw materials such as straw and sawdust into the feeding hopper 4 (the amount of material added at one time should not exceed 2 / 3 of the volume of the feeding hopper 4). Close the feeding cover 6 to prevent dust from overflowing. Alternatively, it can be placed continuously as needed and can be connected below the vertical feeding structure to continuously feed material perpendicularly to the cutting blade 9, while preventing air leakage. The raw material enters the cutting process through the guide pipe 5 at the lower end of the feeding hopper 4. Start the cutting motor 7 to drive the cutting blade 9 to rotate at high speed, and perform the initial cutting of long fiber raw materials (such as straw) (the target length is adjusted by adjusting the speed of the cutting motor 7 and the rotation of the electric roller 10). The feeding part of the electric roller 10 has an anti-slip sleeve on the surface to increase friction and ensure that the raw material is conveyed at a uniform speed to the upper inlet of the impurity removal chamber 3 to avoid blockage.

[0029] Start the blower 13 and simultaneously turn on the heating resistance wire 15 (power dynamically adjusted according to the moisture content of the raw material). Hot air is evenly blown into the bottom of the impurity removal chamber 3 through the ventilation plate 12. The raw material falls from the top of the impurity removal chamber 3 and comes into countercurrent contact with the rising hot air, causing the moisture content to drop rapidly from 20%-30% to 8%-12%. Simultaneously start the negative pressure blower 16 to form an upward airflow at the top of the impurity removal chamber 3, carrying the light impurities (dust, broken leaves, lint, etc.) separated during the drying process into the negative pressure pipe 17. Adjust the length and inclination of the ventilation plate 12 as needed to adjust the raw material retention time.

[0030] Impurities are first filtered by the filter plate 20 in the impurity box 19, where larger particles are trapped. Fine dust continues to rise into the dust filter box 18 (with a built-in activated carbon filter). Clean air is discharged from the outlet of the dust filter box 18, achieving graded filtration of impurities. The airflow guide plate 24 in the impurity removal chamber 3 guides the airflow to be evenly distributed, avoiding dead corners and turbulence, ensuring full contact between the raw materials and hot air, and at the same time assisting light impurities to move towards the negative pressure port.

[0031] After drying and impurity removal, the raw material, due to its high density, falls to the bottom of the impurity removal chamber 3 under gravity and enters the conveyor roller 22 system in the discharge pipe 21. The conveyor roller 22 is started (it can be synchronized with the electric roller 10 or faster), and the conveyor belt 23 transports the raw material to the next process (such as the feed inlet of the pellet forming machine), completing the pretreatment process.

[0032] After the operation is completed, turn off all power components, open the impurity box 19 and the dust filter box 18, and clean the trapped impurities; remove the front filter cloth 14, rinse to remove large particles of impurities, and then let it dry for later use.

[0033] Moisture content control: When the initial moisture content of the raw material is high, increase the power of the heating resistance wire by 15 and extend the drying time; when the moisture content is low, reduce the power to avoid over-drying.

[0034] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A biomass combustion pellet feedstock processing device, comprising a main base (1), characterized in that, A column (2) is fixedly installed on the main base (1), and a cleaning chamber (3) is fixedly installed between the columns (2). A heating and air supply structure is provided at the lower end of the side wall of the cleaning chamber (3), a negative pressure filtration structure is provided at the upper end of the cleaning chamber (3), a raw material cutting structure is provided at the upper end of the cleaning chamber (3), and a discharge structure is provided at the lower end of the cleaning chamber (3).

2. The biomass combustion pellet feedstock processing equipment according to claim 1, characterized in that... The raw material cutting structure includes a feeding hopper (4), a guide tube (5) is provided at the lower end of the feeding hopper (4), the guide tube (5) is connected to the upper end of the impurity removal chamber (3), a rotating cutting part is provided on the guide tube (5), a feeding part is provided at the lower end of the guide tube (5), and a feeding cover (6) is provided at the upper end of the feeding hopper (4).

3. The biomass combustion pellet feedstock processing equipment according to claim 2, characterized in that... The rotating cutting part includes a cutting motor (7), which is fixedly installed on the upper end of the guide tube (5), and a cutting blade (9) is fixedly installed on the driving end of the cutting motor (7).

4. The biomass combustion pellet feedstock processing equipment according to claim 2, characterized in that... The feeding unit includes an electric roller (10), which is installed between the lower ends of the guide tube (5). The electric rollers (10) are installed side by side, and an anti-slip sleeve is provided on the electric roller (10).

5. The biomass combustion pellet feedstock processing equipment according to claim 1, characterized in that... The heating and air supply structure includes an air supply pipe (11), the output end of which is fixedly connected to the lower end of the side wall of the impurity removal chamber (3), a ventilation plate (12) is provided at the output end of the air supply pipe (11), an air supply fan (13) is provided inside the air supply pipe (11), a front filter cloth (14) is provided at the input end of the air supply pipe (11), and a heating resistance wire (15) is provided at the lower end of the ventilation plate (12).

6. The biomass combustion pellet feedstock processing equipment according to claim 1, characterized in that... The negative pressure filtration structure includes a negative pressure fan (16), a negative pressure pipe (17) is provided at the output end of the negative pressure fan (16), the negative pressure pipe (17) is vertically installed at the upper output end of the impurity removal chamber (3), a dust filter box (18) is provided at the output end of the negative pressure pipe (17), an impurity box (19) is provided at the lower end of the negative pressure pipe (17), and filter plates (20) are provided at the input and output ends of the impurity box (19).

7. The biomass combustion pellet feedstock processing equipment according to claim 1, characterized in that... The discharge structure includes a discharge pipe (21), which is connected to the lower output end of the impurity removal chamber (3). A pair of conveyor rollers (22) are installed inside the discharge pipe (21), and a conveyor belt (23) is connected to the conveyor rollers (22).

8. The biomass combustion pellet feedstock processing equipment according to claim 1, characterized in that... A wind direction guide plate (24) is fixedly installed inside the impurity removal chamber (3) and at the input end of the negative pressure impurity filtering structure.

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