Biomass raw material producing and processing system

Abstract

The utility model belongs to the technical field of biomass production and processing equipment, and provides a biomass raw material production and processing system which comprises a crushing section, a coarse crushing section, a drying section, a fine crushing section, a particle processing section and a bypass channel. Every two adjacent working sections are connected through an independent conveying mechanism; the bypass channel is connected with a plurality of bypass distribution mechanisms; and each bypass distribution mechanism is connected with one corresponding conveying mechanism. According to the biomass raw material producing and processing system, a plurality of different processing sections are configured according to different characters of materials to be processed, the adjacent sections are connected through the conveying mechanisms, meanwhile, a bypass channel is arranged along each section, and the bypass channels are connected with the conveying mechanisms of the sections through a plurality of distribution mechanisms; the biomass raw materials can be directly conveyed to corresponding working sections according to different characters of the biomass raw materials, the situation that the biomass raw materials with different characters are processed in a unified mode, excessive processing of part of the biomass raw materials is caused is avoided, and the production and processing efficiency of the biomass raw materials is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of biomass production and processing equipment, and specifically relates to a biomass raw material production and processing system. Background Art

[0002] Biomass refers to various organisms formed through photosynthesis. Biomass energy is the energy of solar energy stored in biomass as chemical energy. It is currently the fourth largest energy source after coal, oil, and natural gas. As a combustible substance, biomass is present in all aspects of production and life. If fully utilized, biomass energy can become a long-term, renewable energy source.

[0003] From a fuel perspective, biomass has a relatively low calorific value, and its diversity makes biomass production technology complex. To facilitate transportation, storage, and combustion, biomass raw materials usually need to be processed into pellets or blocks. In coal-fired power generation companies, commonly used biomass raw materials include corn cobs, rice husks, straw, wood chips, branches, sawdust, etc. Due to the varying properties of these raw materials, if all of them are mixed together and processed on the production line, some will be over-processed, increasing equipment energy consumption and leading to low processing efficiency. Summary of the Invention

[0004] In order to solve the problems of over-processing and low processing efficiency in the existing biomass raw material production and processing process, the present application provides a biomass raw material production and processing system.

[0005] In one embodiment, a biomass raw material production and processing system includes a crushing section, a coarse crushing section, a drying section, a fine crushing section, a particle processing section, and a bypass channel;

[0006] The discharge part of the crushing section is connected to the feed part of the coarse grinding section via a first conveying mechanism; the discharge part of the coarse grinding section is connected to the feed part of the drying section via a second conveying mechanism; the discharge part of the drying section is connected to the feed part of the fine grinding section via a third conveying mechanism; the discharge part of the fine grinding section is connected to the feed part of the particle processing section via a fourth conveying mechanism;

[0007] The bypass channel is connected with the first bypass distribution mechanism, the second bypass distribution mechanism, the third bypass distribution mechanism and the fourth bypass distribution mechanism; the first bypass distribution mechanism is connected with the first conveying mechanism; the second bypass distribution mechanism is connected with the second conveying mechanism; the third bypass distribution mechanism is connected with the third conveying mechanism; and the fourth bypass distribution mechanism is connected with the fourth conveying mechanism.

[0008] In one embodiment, the coarse crushing section includes an anti-blocking variable frequency silo, a stone remover, an iron remover, and a coarse crusher;

[0009] The anti-blocking frequency conversion bin is used to collect the biomass raw materials transported by the first conveying mechanism; the stone remover and the iron remover are arranged on the conveying channel connecting the anti-blocking frequency conversion bin and the coarse crusher; one end of the second conveying mechanism extends to the discharge port of the coarse crusher.

[0010] In one embodiment, the drying section includes a dryer, a dust collector, and a fan;

[0011] One end of the first conveying mechanism away from the coarse crushing section extends to the inlet of the dryer; the outlet of the dryer is connected to the dust collector through a conveying channel; one end of the third conveying mechanism extends to the discharge port of the dust collector.

[0012] In one embodiment, the fine grinding section includes a grinding chamber and a fine grinding mill;

[0013] The crushing bin is used to collect the biomass raw materials conveyed by the third conveying mechanism; the crushing bin distributes the biomass raw materials to the fine grinder through a conveying channel; one end of the fourth conveying mechanism extends to the discharge port of the fine grinder.

[0014] In one embodiment, the pellet processing section includes a powder silo and a pellet machine;

[0015] The powder bin is used to collect the biomass raw materials transported by the fourth transport mechanism; the discharge port of the powder bin is connected to the feed port of the pellet machine.

[0016] In one embodiment, a length property detection element and a humidity detection element are provided on the bypass channel;

[0017] Biomass raw materials whose length meets the requirements for coarse crushing can be directly put into the bypass channel. After being detected by the length property detection element and the humidity detection element, they are directly distributed to the coarse crushing section, drying section, fine crushing section or particle processing section according to the specific properties of the biomass raw materials.

[0018] In one embodiment, the first conveying mechanism, the second conveying mechanism, the third conveying mechanism, the fourth conveying mechanism, the first bypass distribution mechanism, the second bypass distribution mechanism, the third bypass distribution mechanism and the fourth bypass distribution mechanism can all be any one of a belt conveyor, a screw conveyor, a belt conveyor and a tube chain conveyor.

[0019] Beneficial effects of this application:

[0020] The biomass raw material production and processing system of the present application is configured with multiple different processing sections according to the different properties of the materials to be processed. The adjacent sections are connected by a conveying mechanism. At the same time, a bypass channel is arranged along each section. The bypass channel is connected to the conveying mechanism of each section through a number of distribution mechanisms. During processing operations, the biomass raw materials can be directly transported to the corresponding section according to their different properties, avoiding the unified processing of biomass raw materials with different properties, resulting in excessive processing of some biomass raw materials, thereby reducing unnecessary energy consumption of equipment in each section and improving production and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic diagram of a biomass raw material production and processing system in one embodiment of the present application;

[0023] Reference numerals in the figures:

[0024] 1. Bypass channel; 11. First bypass distribution mechanism; 12. Second bypass distribution mechanism; 13. Third bypass distribution mechanism; 14. Fourth bypass distribution mechanism;

[0025] 21. Crusher;

[0026] 31. First conveying mechanism; 32. Second conveying mechanism; 33. Third conveying mechanism; 34. Fourth conveying mechanism;

[0027] 41. Anti-blocking frequency conversion silo; 42. Stone remover; 43. Iron remover; 44. Coarse crusher;

[0028] 51. Dryer; 52. Dust collector; 53. Fan;

[0029] 61. Crushing chamber; 62. Fine crusher;

[0030] 71. Powder silo; 72. Pellet machine. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0035] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0036] In order to solve the problems of over-processing and low processing efficiency in the existing biomass raw material production and processing process, the present application provides a biomass raw material production and processing system, and the specific embodiments are as follows:

[0037] In one embodiment, see Figure 1 The biomass raw material production and processing system includes a crushing section, a coarse crushing section, a drying section, a fine crushing section, a particle processing section and a bypass channel 1.

[0038] In this embodiment, the crushing section is a processing process for primary crushing of biomass raw materials using a crusher 21. Its main function is to cut long materials into material segments below 100 mm. The discharge part of the crushing section is connected to the feed part of the coarse crushing section through a first conveying mechanism 31; the coarsely crushed material will generally be less than 40 mm in length and can be further dried to evaporate the moisture in the material. The discharge part of the coarse crushing section is connected to the feed part of the drying section through a second conveying mechanism 32; the biomass raw materials after drying or whose moisture content meets the processing requirements can be finely crushed to make the material reach the required particle size. The discharge part of the drying section is connected to the feed part of the fine crushing section through a third conveying mechanism 33; after the fine crushing is completed, the biomass raw materials can be further processed to form particles with higher density for full combustion. The discharge part of the fine crushing section is connected to the feed part of the particle processing section through a fourth conveying mechanism 34.

[0039] In this embodiment, the bypass channel 1 is connected to a first bypass distribution mechanism 11, a second bypass distribution mechanism 12, a third bypass distribution mechanism 13, and a fourth bypass distribution mechanism 14. The first bypass distribution mechanism 11 is connected to the first conveying mechanism 31; the second bypass distribution mechanism 12 is connected to the second conveying mechanism 32; the third bypass distribution mechanism 13 is connected to the third conveying mechanism 33; and the fourth bypass distribution mechanism 14 is connected to the fourth conveying mechanism 34. By deploying the bypass channel 1 and several bypass distribution mechanisms, on-site workers can flexibly allocate materials to appropriate processing stages based on the specific properties of each batch of biomass feedstock, thereby meeting the diverse processing needs of biomass feedstock. For example, if the length of the biomass feedstock to be processed is less than 100 mm, it can be transported to the first conveying mechanism 31 via the bypass channel 1 and the first bypass distribution mechanism 11, and then directly transported by the first conveying mechanism 31 to the coarse crushing stage, eliminating the need for primary crushing.

[0040] Therefore, the biomass raw material production and processing system of the present application is configured with multiple different processing sections according to the different properties of the materials to be processed. The adjacent sections are connected by a conveying mechanism. At the same time, a bypass channel 1 is arranged along each section. The bypass channel 1 is connected to the conveying mechanism of each section through a number of distribution mechanisms. During processing operations, the biomass raw materials can be directly transported to the corresponding section according to their different properties, avoiding the unified processing of biomass raw materials with different properties, resulting in excessive processing of some biomass raw materials, thereby reducing unnecessary energy consumption of equipment in each section and improving production and processing efficiency.

[0041] In one embodiment, the coarse crushing section includes an anti-blocking variable frequency silo 41, a stone remover 42, an iron remover 43, and a coarse grinder 44. Because the biomass raw materials after crushing contain a certain amount of sand and gravel impurities, and the material size after primary crushing is still relatively large, channel blockage is prone to occur during transportation. After the biomass raw materials that need to be coarsely crushed are transported into the anti-blocking variable frequency silo 41 through the first conveying mechanism 31, the anti-blocking variable frequency silo 41 can be used for transitional storage, and then the feed can be flexibly adjusted according to production capacity and anti-blocking and clearing can be carried out in real time. The material exiting the anti-blocking variable frequency silo 41 is sent to the coarse grinder 44 for coarse crushing after iron and stone removal.

[0042] Among them, the anti-blocking frequency conversion silo 41 is a special silo in the material processing equipment. When the material enters the anti-blocking frequency conversion silo 41, it is first stored in the silo. When the material needs to be output, the motor drives the conveying device to output the material from the silo; during this period, the anti-blocking device will monitor the flow of the material in real time, and will automatically clear the blockage when it finds that the material has a tendency to be blocked or has been blocked; the frequency converter will automatically adjust the motor speed according to the preset parameters and the information fed back by the sensor to ensure that the material conveying speed can meet the production needs without causing blockage problems.

[0043] In this embodiment, the stone remover 42 may be a specific gravity stone remover, a suction stone remover, etc.; the iron remover 43 may be a permanent magnet cylinder, an electromagnetic iron remover 43, etc.

[0044] In one embodiment, the drying section includes a dryer 51, a dust collector 52, and a fan 53. The moisture content of the biomass feedstock should be as low as possible, generally controlled between 10% and 20%. Excessively high moisture content can reduce combustion efficiency because a large amount of heat is used to evaporate the water, and may also produce a large amount of smoke and harmful gases.

[0045] In this embodiment, the first conveying mechanism 31 extends from one end of the coarse crushing section to the entrance of the dryer 51; there are generally two types of dryers 51, one is a direct type, in which the dry hot air directly contacts the material to evaporate the moisture in the material; the other is an indirect type, in which the drying medium does not contact the material and evaporates the moisture in the material through heat conduction. The specific method can be determined according to actual needs. The drying system operates under negative pressure through the fan 53, and the dust is sucked into the atmosphere by the dust collector 52; the dried biomass raw material is further transported by the third conveying mechanism 33.

[0046] In one embodiment, the fine grinding stage includes a grinding chamber 61 and a fine grinder 62. The grinding chamber 61 temporarily stores the biomass material delivered by the third conveying mechanism 33 and conveys the biomass material to the fine grinder 62, which grinds the material to the desired particle size. One end of the fourth conveying mechanism 34 extends to the discharge port of the fine grinder 62.

[0047] In one embodiment, the pelletizing section includes a powder silo 71 and a pelletizer 72. Similarly, the powder silo 71 is used to collect the biomass feedstock delivered by the fourth conveying mechanism 34 and feed the pelletizer 72. The diameter of the pelletized biomass feedstock is generally around 6-10 mm. Pellets have a higher bulk density, reducing storage space. They also provide good air circulation during combustion, resulting in more complete combustion.

[0048] The granulation principle of the granulator 72 is to squeeze the raw materials from the die holes to form granules through the extrusion effect of the pressure roller and the ring die.

[0049] In one embodiment, the bypass channel 1 is provided with a length property detection element and a humidity detection element.

[0050] During processing, biomass raw materials whose length meets the coarse crushing requirements can be directly put into the bypass channel 1. After being detected by the length property detection element and the humidity detection element, they are directly distributed to the coarse crushing section, drying section, fine crushing section or particle processing section according to the specific properties of the biomass raw materials, saving the labor cost of manual screening and mixing and improving the degree of automation of the production and processing system.

[0051] In this embodiment, the length property detection element may specifically be a photoelectric sensor or a linear vibrating screen; the humidity detection element may specifically be an electronic humidity sensor or an infrared humidity detector.

[0052] In one embodiment, the first conveying mechanism 31, the second conveying mechanism 32, the third conveying mechanism 33, the fourth conveying mechanism 34, the first bypass distribution mechanism 11, the second bypass distribution mechanism 12, the third bypass distribution mechanism 13 and the fourth bypass distribution mechanism 14 can all be any one of a belt conveyor, a screw conveyor, a belt conveyor, and a tube chain conveyor.

[0053] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A biomass raw material production and processing system, characterized in that: It includes a crushing section, a coarse crushing section, a drying section, a fine crushing section, a particle processing section and a bypass channel (1); The discharging portion of the crushing section is connected to the feeding portion of the coarse grinding section via a first conveying mechanism (31); the discharging portion of the coarse grinding section is connected to the feeding portion of the drying section via a second conveying mechanism (32); the discharging portion of the drying section is connected to the feeding portion of the fine grinding section via a third conveying mechanism (33); and the discharging portion of the fine grinding section is connected to the feeding portion of the particle processing section via a fourth conveying mechanism (34). The bypass channel (1) is connected to a first bypass distribution mechanism (11), a second bypass distribution mechanism (12), a third bypass distribution mechanism (13) and a fourth bypass distribution mechanism (14); the first bypass distribution mechanism (11) is connected to a first conveying mechanism (31); the second bypass distribution mechanism (12) is connected to a second conveying mechanism (32); the third bypass distribution mechanism (13) is connected to a third conveying mechanism (33); and the fourth bypass distribution mechanism (14) is connected to a fourth conveying mechanism (34).

2. The biomass raw material production and processing system according to claim 1, characterized in that: The coarse crushing section includes an anti-blocking frequency conversion silo (41), a stone remover (42), an iron remover (43) and a coarse crusher (44); The anti-blocking frequency conversion bin is used to collect the biomass raw materials conveyed by the first conveying mechanism (31); the stone remover (42) and the iron remover (43) are arranged on the conveying channel connecting the anti-blocking frequency conversion bin and the coarse crusher (44); one end of the second conveying mechanism (32) extends to the discharge port of the coarse crusher (44).

3. The biomass raw material production and processing system according to claim 1, characterized in that: The drying section includes a dryer (51), a dust collector (52) and a fan (53); One end of the first conveying mechanism (31) is away from the coarse crushing section and extends to the inlet of the dryer (51); the outlet of the dryer (51) is connected to the dust collector (52) through a conveying channel; one end of the third conveying mechanism (33) extends to the discharge port of the dust collector (52).

4. The biomass raw material production and processing system according to claim 1, characterized in that: The fine grinding section includes a grinding chamber (61) and a fine grinding machine (62); The crushing bin (61) is used to collect the biomass raw materials conveyed by the third conveying mechanism (33); the crushing bin (61) delivers the biomass raw materials to the fine grinder (62) through a conveying channel; one end of the fourth conveying mechanism (34) extends to the discharge port of the fine grinder (62).

5. The biomass raw material production and processing system according to claim 1, characterized in that: The particle processing section includes a powder bin (71) and a particle machine (72); The powder bin (71) is used to collect the biomass raw materials conveyed by the fourth conveying mechanism (34); the discharge port of the powder bin (71) is connected to the feed port of the pellet machine (72).

6. The biomass raw material production and processing system according to claim 1, characterized in that: The bypass channel (1) is provided with a length property detection element and a humidity detection element; Biomass raw materials whose length meets the requirements for coarse crushing can be directly put into the bypass channel (1). After being detected by the length property detection element and the humidity detection element, they are directly distributed to the coarse crushing section, the drying section, the fine crushing section or the particle processing section according to the specific properties of the biomass raw materials.

7. The biomass raw material production and processing system according to any one of claims 1 to 6, characterized in that: The first conveying mechanism (31), the second conveying mechanism (32), the third conveying mechanism (33), the fourth conveying mechanism (34), the first bypass distribution mechanism (11), the second bypass distribution mechanism (12), the third bypass distribution mechanism (13) and the fourth bypass distribution mechanism (14) can all be any one of a belt conveyor, a screw conveyor, a belt conveyor and a tube chain conveyor.

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