A feed system and gasification system

Abstract

The utility model embodiment provides a kind of feeding system and gasification system, feeding system includes hopper, for transmitting raw material;With the spiral device of hopper connection, spiral device includes: spiral shaft;With the motor of spiral shaft connection, for driving spiral shaft rotates according to target rotational speed;Target rotational speed is determined according to raw material;Spiral blade is set on spiral shaft, for pushing raw material;Angle adjusting mechanism is set between spiral blade and spiral shaft, for control the target included angle between spiral blade and spiral shaft, to adjust the pushing force that spiral blade exerts to the raw material;Target included angle is determined according to raw material.The utility model embodiment adjusts the pushing speed of raw material by target rotational speed determined according to raw material, adjusts the pushing intensity of raw material by target included angle determined according to raw material, and then makes that feeding is uniform, improves the stability of gasification reaction.

Description

Technical Field

[0001] This utility model relates to the field of feeding technology, and in particular to a feeding system and a gasification system. Background Technology

[0002] Most existing feeding systems use a fixed-speed feed screw, which cannot adjust the feed rate in a timely manner according to changes in raw material characteristics. This makes it easy for the feed rate to fluctuate due to changes in raw material properties during the feeding process. When the raw material density is high, the particle size is coarse, or the moisture content is high, the fixed-speed feed screw may not be able to transport the raw material smoothly, causing feed blockage. Conversely, when the raw material density is low, the particle size is fine, or the moisture content is low, the feed rate may be too fast, leading to unstable reactions in the gasifier and affecting gasification efficiency and product quality. This limits the development and application of biomass gasification. Utility Model Content

[0003] In view of the above problems, the present invention provides a feeding system and a gasification system that overcome or at least partially solve the above problems.

[0004] To address the aforementioned problems, this utility model discloses a feeding system, comprising:

[0005] A hopper is used to transport raw materials.

[0006] The screw device connected to the hopper,

[0007] The spiral device includes:

[0008] Helical shaft;

[0009] A motor connected to the helical shaft is used to drive the helical shaft to rotate at a target speed; the target speed is determined according to the raw material.

[0010] The spiral blades mounted on the spiral shaft are used to push the raw material.

[0011] An angle adjustment mechanism is provided between the helical blades and the helical shaft to control the target angle between the helical blades and the helical shaft, so as to adjust the thrust applied by the helical blades to the raw material; the target angle is determined according to the raw material.

[0012] Optionally, the system further includes:

[0013] An information detection device is used to detect the characteristic information of the raw material; the target rotation speed and the target angle are determined based on the characteristic information of the raw material.

[0014] Optionally, the characteristic information of the raw material includes humidity, and the information detection device includes:

[0015] A humidity detection device is used to detect the humidity of biomass raw materials.

[0016] Optionally, the characteristic information of the raw material includes particle size, and the information detection device includes:

[0017] Particle size distribution detection device, used to detect the particle size of biomass raw materials.

[0018] Optionally, the characteristic information of the raw material includes weight, and the information detection device further includes:

[0019] Weight detection device, used to detect the weight of biomass raw materials.

[0020] Optionally, the system further includes:

[0021] The controller is used to receive the characteristic information of the raw material; send the target rotational speed to the motor; and send the target angle to the angle adjustment mechanism; the target rotational speed is determined according to the mapping relationship between the characteristic information of the raw material and the rotational speed; the target angle is determined according to the mapping relationship between the characteristic information of the raw material and the angle.

[0022] Optionally, the motor is configured to receive a target rotational speed sent by the controller, and drive the helical shaft to rotate at the target rotational speed.

[0023] The angle adjustment mechanism is used to receive the target angle sent by the controller, and control the target angle between the spiral blade and the spiral shaft according to the target angle, so as to adjust the thrust applied by the spiral blade to the raw material.

[0024] Optionally, the system further includes:

[0025] A conveying device connected to the hopper is used to convey the raw material to the hopper.

[0026] This utility model embodiment also discloses a gasification system, the gasification system including the feeding system described in any one of the above claims, and the gasification system further including:

[0027] A gasifier connected to the feeding system is used to gasify the raw materials.

[0028] The embodiments of this utility model have the following advantages:

[0029] This utility model provides a feeding system and a gasification system. The feeding system includes a hopper for conveying raw materials; a screw device connected to the hopper, the screw device including: a screw shaft; a motor connected to the screw shaft for driving the screw shaft to rotate at a target speed; the target speed is determined according to the raw materials; screw blades disposed on the screw shaft for pushing the raw materials; and an angle adjustment mechanism disposed between the screw blades and the screw shaft for controlling the target angle between the screw blades and the screw shaft to adjust the thrust applied by the screw blades to the raw materials; the target angle is determined according to the raw materials. This utility model adjusts the pushing speed of the raw materials according to the target speed determined by the raw materials, and adjusts the pushing force of the raw materials according to the target angle determined by the raw materials, thereby making the feeding uniform and improving the stability of the gasification reaction. Attached Figure Description

[0030] Figure 1 This is a structural block diagram of a feeding system provided in an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of an included angle position provided by an embodiment of the present utility model;

[0032] Figure 3 This is a structural block diagram of a gasification system provided in an embodiment of the present invention. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Existing biomass feeding systems generally use fixed-speed feed screws, lacking the ability to adapt to changes in raw material characteristics, leading to significant limitations in actual operation. Due to the diverse types of biomass raw materials and their significant differences in physical properties, such as density, particle size, and moisture content, these factors often fluctuate considerably. Traditional feeding systems cannot dynamically adjust the feed speed and conveying method according to these real-time changes, easily resulting in uneven and unstable feeding. When the raw material density is high, the particle size is coarse, or the moisture content is high, the fixed-speed screw conveyor may fail to effectively transport the material due to excessive pushing resistance, causing blockage in the feed channel and affecting the continuous and stable operation of the system. Conversely, when the raw material density is low, the particle size is fine, or the moisture content is low, the increased material flowability may lead to an excessively fast feed speed, exceeding the gasifier's processing capacity, thereby causing runaway reactions within the furnace, drastic temperature fluctuations, and unstable gas composition, severely impacting gasification efficiency and product quality.

[0035] Furthermore, this feeding method, lacking intelligent adjustment capabilities, limits the automation level and operational efficiency of the entire gasification system, increases the frequency of manual intervention and maintenance, and reduces the system's reliability and economy. For industrial-grade gasification equipment requiring long-term continuous operation, this feeding method is no longer sufficient to meet the demands for efficient, stable, and controllable production. Simultaneously, with the development of biomass energy utilization technologies, the requirements for refined control of the gasification process are becoming increasingly stringent. Traditional fixed-parameter control strategies are no longer adequate to adapt to complex and variable raw material conditions and process requirements, becoming a key bottleneck restricting the further promotion and application of biomass gasification technology.

[0036] One of the core concepts of this utility model embodiment lies in the following: Raw materials are transported via a hopper; a screw device connected to the hopper includes: a screw shaft; a motor connected to the screw shaft for driving the screw shaft to rotate at a target speed; the target speed is determined based on the raw materials; screw blades disposed on the screw shaft for pushing the raw materials; and an angle adjustment mechanism disposed between the screw blades and the screw shaft for controlling the target angle between the screw blades and the screw shaft to adjust the thrust applied by the screw blades to the raw materials; the target angle is determined based on the raw materials. This utility model embodiment adjusts the pushing speed of the raw materials according to the target speed determined by the raw materials, and adjusts the pushing force of the raw materials according to the target angle determined by the raw materials, thereby achieving uniform feeding and improving the stability of the gasification reaction.

[0037] Reference Figure 1 The diagram shows a structural block diagram of a feeding system 10 provided in an embodiment of the present invention, which may specifically include:

[0038] Hopper 101 is used for conveying raw materials;

[0039] For example, the raw material can be biomass. The hopper 101 serves as a temporary storage and supply device for the raw material, receiving and buffering the biomass raw material to be transported and guiding it into the screw conveyor. The hopper 101 can also be used in conjunction with a weighing sensor or a volume measuring device to monitor the supply of raw material in real time. Furthermore, the hopper 101 can be manufactured from various materials according to actual application requirements, commonly including carbon steel, stainless steel, engineering plastics, or composite materials. Carbon steel is relatively inexpensive and has high strength, making it suitable for general working conditions; stainless steel has good corrosion resistance and wear resistance, making it suitable for handling biomass raw materials with high humidity or a certain degree of corrosivity; engineering plastics such as polyethylene or polypropylene have advantages such as light weight, corrosion resistance, and low coefficient of friction, which help improve material flowability and reduce the risk of clogging; composite materials combine the advantages of multiple materials, possessing strong structural strength and environmental adaptability.

[0040] A screw device 102 connected to a hopper includes: a screw shaft 1021; and a motor 1022 connected to the screw shaft 1021 for driving the screw shaft 1021 to rotate at a target speed; the target speed is determined according to the raw material.

[0041] For example, to improve the adaptability of the feeding system, the rotational speed of the screw shaft 1021 driven by the motor 1022 is not fixed, but dynamically adjusted according to the physical characteristics of the biomass raw material being transported (such as particle size distribution, weight, moisture content, etc.). For instance, when the raw material has a coarser particle size, higher density, or higher moisture content, the material flowability is poor. In this case, the rotational speed of the screw shaft should be appropriately reduced to avoid blockage or jamming caused by excessive pushing resistance. Conversely, when the raw material has a finer particle size, lower density, or lower moisture content, the material flowability is better, and the rotational speed can be appropriately increased to ensure sufficient feed volume and prevent insufficient feed from affecting gasification efficiency.

[0042] The spiral blades 1023 disposed on the spiral shaft 1021 are used to push the raw material;

[0043] For example, the spiral blades 1023 set on the spiral shaft 1021 continuously and stably push the biomass raw materials in the hopper to the subsequent processing equipment along the conveying direction through rotational motion. The spiral blades 1023 are connected to the spiral shaft 1021 and rotate together with it. During the rotation, the friction between the blade surface and the material and the propulsion principle of the spiral structure are used to gradually push the raw materials from the feed end to the discharge end.

[0044] The design parameters of the helical blades, such as pitch, diameter, thickness, and blade shape, directly affect the conveying efficiency and uniformity of materials. A well-designed blade can effectively improve pushing capacity and reduce material blockage, clumping, or backflow during conveying, especially suitable for biomass raw materials with poor flowability or high moisture content. For example, when processing biomass raw materials with high moisture content and poor flowability (such as wet sawdust or straw), a large pitch and wide blade structure is typically used to increase pushing force and reduce the risk of material accumulation and blockage during conveying. Conversely, for raw materials with smaller particle size and higher density (such as wood flour or pellet fuel), a small pitch and closely spaced blade structure can be selected to improve conveying uniformity and control accuracy, avoiding unstable feeding due to material backflow.

[0045] Furthermore, the material selection for the 1023 helical blades is also crucial. Common materials include carbon steel, stainless steel, and engineering plastics. The choice must be based on the characteristics of the raw materials and the working environment, selecting materials with good wear resistance, corrosion resistance, and structural strength to ensure long-term stable operation. For example, in feeding systems operating in humid or corrosive environments, stainless steel helical blades are often used to enhance corrosion resistance and service life. In lightweight, low-wear scenarios, engineering plastic blades can be used, which not only have good self-lubricating properties but also effectively reduce frictional resistance, improve material flowability, and reduce the overall weight of the equipment.

[0046] Reference Figure 2 The figure shows a schematic diagram of an included angle position provided by an embodiment of the present invention, where 'a' is the target included angle.

[0047] An angle adjustment mechanism 1024 is provided between the helical blade 1023 and the helical shaft 1021 to control the target angle between the helical blade 1023 and the helical shaft 1021, so as to adjust the thrust applied by the helical blade 1023 to the raw material; the target angle is determined according to the raw material.

[0048] By placing the angle adjustment mechanism 1024 between the helical blade 1023 and the helical shaft 1021, the angle adjustment action can be made more sensitive and stable, ensuring real-time response to changes in the blade tilt angle. Furthermore, since the helical shaft is the support and drive center of the entire conveying device, placing the adjustment mechanism between it and the blade helps to maintain the compactness and mechanical balance of the overall structure, reducing vibration and wear during operation.

[0049] For example, the angle adjustment mechanism 1024 can set a suitable target angle according to the flowability and resistance characteristics of different raw materials, ensuring that the material is not easily blocked, agglomerated, or backflowed during the conveying process, thus achieving a continuous, uniform, and controllable feeding process. When conveying biomass raw materials with high moisture content and high viscosity (such as wet straw or sawdust), due to the poor flowability and high resistance of the material, the target angle can be reduced to make the spiral blades more closely aligned with the axial direction, thereby enhancing the pushing force and preventing material accumulation. When processing raw materials with fine particle size and high density (such as wood powder or pellet fuel), to avoid excessive compression and blockage, the blade angle can be appropriately increased to reduce the pushing intensity and improve the uniformity of conveying. In the conveying of lightweight, dry raw materials (such as rice husks or shredded paper), these materials have good flowability but are easily scattered. In this case, the blade inclination angle can be finely adjusted through the angle adjustment mechanism to maintain a stable pushing rhythm and prevent the occurrence of excessively fast feeding or material interruption. This structural design, which can be flexibly adjusted according to the characteristics of the raw materials, not only improves the adaptability and intelligence level of the feeding system, but also provides a strong guarantee for the stable operation of downstream equipment such as gasifiers.

[0050] In one embodiment, the system further includes: an information detection device for detecting characteristic information of the raw material; the target rotational speed and the target angle are determined based on the characteristic information of the raw material.

[0051] For example, an information detection device is used to detect the characteristics of biomass raw materials in real time, such as key parameters like particle size distribution, weight, and moisture content. These physical characteristics directly affect the flowability of the raw materials and the resistance changes during transportation, thus affecting the uniformity and stability of the feed. The information detection device can integrate multiple individual detection devices, optimize the mechanical structure, share some components, and reduce redundant parts to improve integration and reliability, and reduce maintenance costs, meeting the needs of modern production from multiple dimensions. After acquiring raw material characteristic data through the information detection device, the system can determine the optimal target rotational speed and target angle based on a preset mapping relationship, thereby achieving stable control of the feeding process.

[0052] Traditional feeding systems often employ fixed rotation speed and fixed angle control, which is difficult to adapt to dynamic changes in raw material characteristics, easily leading to problems such as blockage, uneven feeding, or excessively rapid feeding. However, by introducing an information detection device, the system can adaptively adjust according to the actual state of the raw material: for example, when the raw material particle size is detected to be large and the moisture content high, the control system will correspondingly reduce the screw shaft speed and decrease the blade angle to enhance the pushing force and prevent jamming; while when dealing with fine-sized, highly flowable raw materials, the rotation speed can be appropriately increased and the blade angle increased to improve conveying efficiency and avoid material accumulation.

[0053] In one embodiment, the characteristic information of the raw material includes humidity, and the information detection device includes a humidity detection device for detecting the humidity of the biomass raw material.

[0054] For example, humidity is one of the key factors affecting the flowability and conveying performance of biomass feedstocks. High-humidity feedstocks are typically more viscous and have poor flowability, easily leading to agglomeration, blockage, or increased pushing resistance during conveying. Low-humidity feedstocks, on the other hand, are looser, more brittle, and have higher flowability, potentially resulting in excessively fast feeding speeds, affecting the stability of the feedstock and the operating efficiency of the gasifier. Therefore, using humidity as a core detection parameter helps the system more accurately determine the feedstock state and optimize control strategies accordingly. The system is equipped with a humidity detection device, an important component of the information detection system, used to collect real-time moisture content data of the biomass feedstocks. This device can employ capacitive, resistive, or infrared sensing technologies to quickly and accurately measure the moisture content of the feedstock and feed the data back to the controller. This determines the optimal target rotation speed and target angle, ensuring a uniform and stable feeding process.

[0055] In one embodiment, the characteristic information of the raw material includes particle size, and the information detection device includes a particle size distribution detection device for detecting the particle size of the biomass raw material.

[0056] For example, particle size distribution directly affects the flow characteristics, bulk density, and pushing resistance and uniformity of biomass feedstocks during conveying. Feedstocks of different particle sizes exhibit different physical behaviors during screw conveying: larger or irregularly shaped materials have poor flowability, easily causing blockages or poor pushing; while excessively fine materials may lead to unstable conveying or inaccurate metering due to their light weight and tendency to suspend. Therefore, using particle size as a key detection parameter helps the system more accurately grasp the physical characteristics of the feedstock, thereby optimizing the feed control strategy. The system is equipped with a particle size distribution detection device, an important component of the information detection system, used to acquire real-time particle size distribution data of biomass feedstocks. This device can quickly and accurately classify the feedstock by particle size based on technologies such as laser diffraction, image recognition, or sieving analysis, and output the proportion of each particle size range. For example, when the feedstock particle size is detected to be too large or unevenly distributed, the system can appropriately reduce the rotation speed and decrease the blade angle to enhance pushing capacity and prevent jamming; while when the particle size is fine and the flowability is good, the rotation speed can be increased to improve conveying efficiency.

[0057] In one embodiment, the characteristic information of the raw material includes weight, and the information detection device further includes a weight detection device for detecting the weight of the biomass raw material.

[0058] Weight is a crucial physical parameter reflecting the density and loading capacity of biomass feedstock per unit volume, playing a key role in achieving precise control of the feeding process and optimizing the gasification reaction. With a fixed volume of feedstock transported each time, its density can be determined by its weight. Weight information not only helps the system determine whether the current feed rate meets the set value but also allows for the calculation of the actual density of the feedstock combined with volume measurement data, further analyzing its flowability and ease of transport. For example, under the same volume, a significant increase in feedstock weight may indicate increased density or moisture content, requiring adjustments to the screw shaft speed or blade angle to enhance pushing capacity; conversely, increasing the conveying speed can prevent insufficient feed from affecting gasification efficiency. The weight detection device, as an important component of the information detection system, is used to detect real-time changes in the weight of biomass feedstock and feed the data back to the controller. This device can be installed on the conveyor belt, hopper support structure, or below the starting section of the screw conveyor at the feed inlet, continuously monitoring the feedstock supply and flow status.

[0059] In one embodiment, the system further includes: a controller, configured to receive characteristic information of the raw material; send the target rotational speed to the motor; send the target included angle to the angle adjustment mechanism; wherein the target rotational speed is determined based on a mapping relationship between the characteristic information of the raw material and rotational speed; and the target included angle is determined based on a mapping relationship between the characteristic information of the raw material and included angle.

[0060] For example, the controller can internally store a mapping model or control strategy between raw material characteristics and rotational speed and angle. These mapping relationships are derived based on a large amount of experimental data, historical operating experience, or training with machine learning algorithms. Upon receiving the characteristic parameters of the current raw material, the controller quickly matches the target rotational speed and target angle most suitable for the current operating conditions through comparison and calculation, and sends the corresponding control commands to the motor 1022 and the angle adjustment mechanism 1024 respectively. The introduction of the controller greatly improves the flexibility and stability of the feeding system. For example, when the raw material is detected to have excessive moisture or large particle size, the controller will automatically reduce the rotational speed and decrease the blade angle to enhance the pushing capacity and prevent blockage; while when facing dry, fine-particle raw materials, it can increase the rotational speed and increase the angle to improve conveying efficiency. In this way, the system can achieve precise control according to different raw material states, ensuring the continuity and uniformity of the feeding, thereby providing a stable raw material input for the gasifier and ensuring that its reaction process is efficient and controllable.

[0061] In one embodiment, the motor 1022 is used to receive a target rotational speed sent by the controller and drive the spiral shaft 1021 to rotate at the target rotational speed.

[0062] For example, in the feeding system, the rotational speed of the screw shaft 1021 directly determines the conveying speed and flow rate of the material. Different characteristics of biomass raw materials (such as particle size, moisture content, and weight) significantly affect conveying efficiency and stability. Therefore, a fixed-speed drive method often struggles to adapt to changes in raw material characteristics, easily leading to uneven feeding, blockages, or overfeeding, affecting the stable operation of the subsequent gasifier. By connecting the motor 1022 to the controller, enabling it to receive real-time target speed commands derived from the controller's analysis of raw material characteristics, the system can achieve closed-loop control of the screw shaft 1021's rotational speed. This control method allows the feeding speed to be intelligently adjusted based on the raw material's condition, rather than being fixed. For instance, when the raw material is detected to have excessive moisture or poor flowability, the controller reduces the target speed to slow the conveying speed and prevent blockages; while when dealing with dry, fine-particle raw materials, the speed is appropriately increased to improve conveying efficiency and avoid insufficient feeding. In addition, the motor 1022 can be a variable frequency motor or a servo motor, which has good speed regulation performance and response capability, and can quickly and accurately execute the speed command issued by the controller, ensuring the operational stability and control accuracy of the entire feeding system.

[0063] The angle adjustment mechanism 1024 is used to receive the target angle sent by the controller, and control the target angle between the spiral blade 1023 and the spiral shaft 1021 according to the target angle, so as to adjust the thrust applied by the spiral blade 1023 to the raw material.

[0064] For example, due to the wide variety of biomass raw materials and their significant differences in physical properties, such as uneven particle size distribution, large variations in moisture content, and varying densities, a fixed blade angle is insufficient to meet the feeding requirements under complex working conditions. By introducing an angle adjustment mechanism 1024, and with the controller dynamically setting the optimal target angle based on real-time acquired raw material characteristics (such as particle size, moisture content, and weight), the angle adjustment mechanism 1024 can intelligently adjust the blade angle, thereby optimizing conveying performance. For instance, when dealing with raw materials with excessive moisture and high viscosity, the controller can issue a command to reduce the angle, making the blades closer to the axial direction, increasing the pushing force, and preventing material blockage. Conversely, when handling fine-particle, highly fluid raw materials, the angle can be appropriately increased to reduce the pushing intensity and prevent excessive feeding or over-compression of the material.

[0065] Reference Figure 3 The diagram shows a structural block diagram of a gasification system 1 provided by an embodiment of the present invention. The gasification system 1 includes a feeding system 10 and a gasifier 11. The feeding system 10 includes a conveying device 103.

[0066] In one embodiment, the system further includes a conveying device 103 connected to the hopper 101 for conveying the raw material to the hopper 101.

[0067] For example, hopper 101, as the starting point of the screw conveyor, is mainly responsible for temporary storage and uniform supply of raw materials, but it does not have long-distance conveying capabilities. Therefore, a conveying device 103 needs to be installed at the front end of the hopper as a pre-conveying link for raw materials entering the feeding system. The conveying device 103 can be in the form of a belt conveyor, chain conveyor, or vibrating feeder, and can be selected and optimized according to the physical characteristics of the raw materials (such as particle size, moisture content, and weight) to ensure that the materials are transported smoothly and stably to hopper 101. This device not only solves the problems of low efficiency, high labor intensity, and uneven material supply caused by manual feeding, but also can be linked with the control system to achieve on-demand feeding and intelligent scheduling. For example, when the material level in hopper 101 is lower than the set value, the conveying device 103 is activated to replenish the material, and it automatically stops when the material level reaches the upper limit, thereby avoiding overload or material interruption.

[0068] This utility model provides a feeding system and a gasification system. The feeding system includes a hopper for conveying raw materials; a screw device connected to the hopper, the screw device including: a screw shaft; a motor connected to the screw shaft for driving the screw shaft to rotate at a target speed; the target speed is determined according to the raw materials; screw blades disposed on the screw shaft for pushing the raw materials; and an angle adjustment mechanism disposed between the screw blades and the screw shaft for controlling the target angle between the screw blades and the screw shaft to adjust the thrust applied by the screw blades to the raw materials; the target angle is determined according to the raw materials. This utility model adjusts the pushing speed of the raw materials according to the target speed determined by the raw materials, and adjusts the pushing force of the raw materials according to the target angle determined by the raw materials, thereby making the feeding uniform and improving the stability of the gasification reaction.

[0069] This utility model embodiment also provides a gasification system 1, characterized in that the gasification system includes a feeding system 10, and the gasification system 1 further includes a gasification furnace 11 connected to the feeding system for gasifying the raw materials.

[0070] For example, the feeding system 10 is responsible for continuously and stably conveying biomass feedstock to the gasifier 11 at a set speed and flow rate, which is a key link to ensure the continuity and controllability of the entire gasification process. The gasifier 11, as the core reaction equipment, undertakes the important function of converting the fed feedstock into combustible gases (such as carbon monoxide, hydrogen, methane, etc.) under high temperature, oxygen-deficient, or oxygen-limited conditions, and is the core device for energy conversion. The close connection between these two parts ensures that the feedstock can be supplied accurately and evenly according to the gasifier's processing capacity, avoiding problems such as unstable reactions, fluctuations in gas composition, or decreased thermal efficiency caused by uneven feeding. For example, excessively fast feeding may lead to material accumulation and incomplete gasification in the furnace, producing a large amount of tar; while insufficient feeding may cause a drop in the temperature of the reaction zone, affecting gas production efficiency. Through real-time detection and adaptive adjustment of feedstock characteristics (such as particle size, moisture content, and weight) by the feeding system 10, the feeding parameters can be dynamically optimized, ensuring that the gasifier is always in optimal operating condition.

[0071] This utility model provides a gasification system, including a feeding system with a hopper for conveying raw materials; a screw device connected to the hopper, the screw device including a screw shaft; a motor connected to the screw shaft for driving the screw shaft to rotate at a target speed; the target speed is determined according to the raw materials; screw blades disposed on the screw shaft for pushing the raw materials; and an angle adjustment mechanism disposed between the screw blades and the screw shaft for controlling the target angle between the screw blades and the screw shaft to adjust the thrust applied by the screw blades to the raw materials; the target angle is determined according to the raw materials. This utility model adjusts the pushing speed of the raw materials according to the target speed determined by the raw materials, and adjusts the pushing force of the raw materials according to the target angle determined by the raw materials, thereby making the feeding uniform and improving the stability of the gasification reaction.

[0072] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0073] Furthermore, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0074] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0075] Finally, it should be noted that in this document, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0076] The above provides a detailed description of the feeding system and gasification system provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A feed system characterized by, The system includes: A hopper is used to transport raw materials. The screw device connected to the hopper, The spiral device includes: Helical shaft; A motor connected to the helical shaft is used to drive the helical shaft to rotate at a target speed; the target speed is determined according to the raw material. The spiral blades mounted on the spiral shaft are used to push the raw material. An angle adjustment mechanism is provided between the helical blades and the helical shaft to control the target angle between the helical blades and the helical shaft, so as to adjust the thrust exerted by the helical blades on the raw material; the target angle is determined according to the raw material.

2. The feed system of claim 1, wherein, The system also includes: An information detection device is used to detect the characteristic information of the raw material; the target rotation speed and the target angle are determined based on the characteristic information of the raw material.

3. The feed system of claim 2, wherein, The characteristic information of the raw material includes humidity, and the information detection device includes: A humidity detection device is used to detect the humidity of biomass raw materials.

4. The feeding system according to claim 2, characterized in that, The characteristic information of the raw material includes particle size, and the information detection device includes: Particle size distribution detection device, used to detect the particle size of biomass raw materials.

5. The feeding system according to claim 2, characterized in that, The characteristic information of the raw material includes its weight, and the information detection device further includes: Weight detection device, used to detect the weight of biomass raw materials.

6. The feeding system according to any one of claims 3 to 5, characterized in that, The system also includes: The controller is used to receive the characteristic information of the raw material; send the target rotational speed to the motor; and send the target angle to the angle adjustment mechanism; the target rotational speed is determined according to the mapping relationship between the characteristic information of the raw material and the rotational speed; the target angle is determined according to the mapping relationship between the characteristic information of the raw material and the angle.

7. The feeding system according to claim 6, characterized in that, The motor is used to receive the target rotation speed sent by the controller and drive the spiral shaft to rotate at the target rotation speed. The angle adjustment mechanism is used to receive the target angle sent by the controller, and control the target angle between the spiral blade and the spiral shaft according to the target angle, so as to adjust the thrust applied by the spiral blade to the raw material.

8. The feeding system according to claim 1, characterized in that, The system also includes: A conveying device connected to the hopper is used to convey the raw material to the hopper.

9. A gasification system, characterized in that, The gasification system includes the feeding system as described in any one of claims 1 to 8, and the gasification system further includes: A gasifier connected to the feeding system is used to gasify the raw materials.

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