Biomass waste drying system
By combining high-temperature fluid heat exchange and hot air drying biomass waste drying system, the problem of difficult drying of high-humidity and high-viscosity biomass waste is solved, and the efficient drying of biomass waste is achieved in the range of 10%-60% moisture content.
Patent Information
- Application Number
- CN202421987836.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The prior art is difficult to effectively dry high-humidity and high-viscosity biomass waste, and the traditional drying method cannot reduce the moisture content to the range of 10%-60%.
By combining indirect drying of high-temperature fluid heat exchange and direct drying of hot air, multiple heating and heat exchange are achieved through the biomass waste drying system, including the first material box, the heat exchange pipe body, the second material box and the circulation assembly, the condenser, the heat exchange member and the heating member in the circulation circuit are used to achieve multiple heating and heat exchange, and the drying effect is improved.
The drying of biomass waste is achieved to any drying degree within the range of 10%-60% moisture content, which significantly improves the drying effect.
Smart Images
Figure CN223121877U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of waste drying equipment, and particularly relates to a biomass waste drying system. Background Art
[0002] Biomass wastes, such as dairy cow manure, furfural residue and other wastes, are common wastes in life. Due to their high humidity and high viscosity characteristics, traditional drying methods, such as mechanical dehydration treatment, can only reduce the water content to 80%, which cannot meet the drying requirements of biomass wastes. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a biomass waste drying system to solve the limitations of the existing drying methods in the process of biomass waste treatment as mentioned in the above background art.
[0004] To achieve the above purpose, the utility model provides the following technical solution: A biomass waste drying system, comprising:
[0005] A first material box, which defines a first drying area for accommodating biomass waste therein;
[0006] A heat exchange tube body, which is arranged in the first material box and has an inlet end and an outlet end extending outside the first material box;
[0007] A second material box, the feed inlet of the second material box is connected to the discharge outlet of the first material box, and a second drying area is defined in the second material box;
[0008] A circulation component, including a condenser, a heat exchange component, a heating component and at least one hot air blower arranged at the bottom of the second drying area. The top of the second drying area, the condenser, the heat exchange component, the heating component and the bottom of the second drying area are sequentially connected to form a circulation loop, and the heat exchange component is connected to the output end of the heat exchange tube body.
[0009] Preferably, the heating component is a heat exchange structure.
[0010] Preferably, the heating component is connected to the input end of the heat exchange tube body.
[0011] Preferably, the heat exchange component is arranged along the axis of the first material box, and conveying screws are arranged on both sides of the first material box on both sides of the heat exchange component.
[0012] Preferably, the rotation directions of the conveying screws on both sides of the heat exchange component are opposite, and are configured to rotate synchronously.
[0013] Preferably, at least one material conveying unit is arranged in the second drying area along its length direction.
[0014] Preferably, the material conveying unit is a belt conveying structure, and gaps for hot air to pass through are provided on the conveyor belt.
[0015] Preferably, an extrusion machine is provided at the feed inlet of the second material box.
[0016] Preferably, a plurality of material conveying units are provided and arranged at intervals along the height direction of the second drying section.
[0017] Preferably, a plurality of hot air blowers are provided and arranged at intervals along the length direction of the second drying section.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0019] In this application, by combining indirect drying through heat exchange with high-temperature fluid and direct hot air drying, distributed drying of biomass waste is achieved. The high-moisture and high-viscosity biomass can be dried to any required dryness within the moisture content range of 10%-60%, improving the drying effect of biomass waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the overall drying system;
[0021] Figure 2 is a schematic diagram of the inside of the first material box.
[0022] In the figure:
[0023] 100, the first material box; 101, the first drying section; 102, the heat exchange tube body; 102a, the inlet end; 102b, the outlet end; 103, the conveying screw;
[0024] 200, the second material box; 201, the second drying section; 202, the material conveying unit; 203, the extrusion machine;
[0025] 300, the circulation assembly; 301, the condenser; 302, the heat exchange member; 303, the heating member; 304, the hot air blower. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] A biomass waste drying system (hereinafter referred to as the drying system), referring to Figure 1, the main body of the drying system is composed of a first drying component and a second drying component. During the operation of the drying system, the original biomass waste is first dried by the first drying component and then supplied to the second drying component for secondary drying. Specifically, in some embodiments, the first drying component includes a first feed bin 100 and a heat exchange tube body 102. A first drying section 101 for accommodating the biomass waste is defined in the first feed bin 100, which has a feed inlet 101a and a discharge outlet 101b. The heat exchange tube body 102 is arranged in the first drying section 101 and has an inlet end 102a and an outlet end 102b extending outside the first feed bin 100. When the first drying component operates, a high-temperature fluid (steam or heat-conducting oil) flows into the heat exchange tube body 102 from the inlet end 102a, exchanges heat with the biomass waste in the first drying section 101 to dry the biomass waste, and the fluid after heat exchange flows out from the outlet end 102b and enters the subsequent heat exchange component 302 to exchange heat with the dry air output by the subsequent condenser 301. In some embodiments, the above heat exchange tube body 102 is configured as a straight tube body arranged along the axis of the feed bin. Correspondingly, referring to Figure 2 , two conveying screws 103 are provided in the first drying section 101 of the first feed bin 100. The two conveying screws 103 are distributed on both sides of the heat exchange tube body 102, and the screw rotation directions of the two conveying screws 103 are opposite and are configured to rotate synchronously, for example, realized by a motor and a synchronous belt drive. When the first drying component operates, the biomass waste moves along the length direction of the first feed bin 100 under the action of the conveying screws 103, contacts the wall of the heat exchange tube body 102 to exchange heat, and is output from the discharge outlet of the feed bin to the subsequent second drying component. In some examples, a briquetting machine 203 is provided at the position of the feed inlet 200a of the subsequent second feed bin 200 for preprocessing the biomass waste input into the second feed bin 200.
[0028] In some embodiments, the second drying assembly includes a second bin 200 and a circulation assembly 300. A second drying section 201 is defined within the second bin 200, and the second bin 200 has a feed inlet 200a connected to the discharge opening 100b of the first bin 100. The circulation assembly 300 includes a hot air blower 304, a condenser 301, a heat exchange member 302, and a heating member 303. The hot air blower 304 is disposed at the bottom of the second drying section 201 and is configured to output hot air to the biomass waste within the second drying section 201 to effect secondary drying of the biomass waste. Exemplarily, a plurality of the above-mentioned hot air blowers 304 are provided and are spaced along the length direction of the second bin 200. The top of the second drying section 201, the condenser 301, the heat exchange member 302, the heating member 303, and the bottom of the second drying section 201 are sequentially connected to form a circulation loop. During the operation of the second drying assembly, the circulating gas contacts the biomass waste under the action of the hot air blower 304 and then becomes humid hot air, which is then input into the condenser 301. The water vapor in the humid hot air is precooled to become condensed water and is discharged. At the same time, the humid hot air becomes dry air and is input into the heat exchange member 302 to exchange heat with the fluid output from the heat exchange tube body 102 to effect a primary heating of the dry air. The dry air that has undergone primary heating (i.e., the dry air output from the heat exchange member 302) is input into the heating member 303 for secondary heating to become dry hot air, and then is re-supplied to the bottom of the second drying section 201 and flows to the top of the second drying section 201 under the action of the hot air blower 304, and exchanges heat with the biomass waste during the flow. In some embodiments, the above-mentioned heating member 303 is also configured as a heat exchange structure, for example, by exchanging heat between a high-temperature fluid (such as the high-temperature fluid input to the output end of the heat exchange tube body 102) and the dry air after primary heating to effect secondary heating of the dry air.
[0029] Referring to Figure 1 , the above-mentioned second drying section 201 further includes a material conveying assembly disposed within the second drying section 201. The material conveying assembly includes at least one material conveying unit 202 arranged along the length direction of the second conveying section. Exemplarily, when a plurality of material conveying units 202 are arranged, the plurality of material conveying units 202 are spaced in the height direction of the second drying section 201. Exemplarily, taking the arrangement of two material conveying units 202 as an example, a single material conveying unit 202 is configured as, for example, a belt conveyor, and there are gaps on the conveyor belt to allow hot air to pass through and contact the biomass waste and effect drying of the biomass waste.
[0030] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0031] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine the different embodiments or examples described in the present utility model and the features of different embodiments or examples.
Claims
1. A biomass waste drying system, characterized in that, Comprising: A first material bin, within which a first drying section for accommodating biomass waste is defined; A heat exchange tube body, arranged within the first material bin, and having an inlet end and an outlet end extending outside the first material bin; A second material bin, the feed inlet of the second material bin being connected to the discharge outlet of the first material bin, and a second drying section being defined within the second material bin; A circulation assembly, including a condenser, a heat exchange member, a heating member, and at least one hot air blower arranged at the bottom of the second drying section, the top of the second drying section, the condenser, the heat exchange member, the heating member, and the bottom of the second drying section being sequentially connected to form a circulation loop, and the heat exchange member being connected to the output end of the heat exchange tube body.
2. The biomass waste drying system according to claim 1, wherein: The heating member is a heat exchange structure.
3. A biomass waste drying system according to claim 1, characterized in that: The heating member is connected to the input end of the heat exchange tube body.
4. A biomass waste drying system according to claim 1, characterized in that: The heat exchange member is arranged along the axis of the first material bin, and conveying screws are provided on both sides of the heat exchange member in the first material bin.
5. A biomass waste drying system according to claim 4, characterized in that: The rotation directions of the conveying screws on both sides of the heat exchange member are opposite, and are configured to rotate synchronously.
6. A biomass waste drying system according to claim 1, characterized in that: At least one material conveying unit arranged along the length direction thereof is provided within the second drying section.
7. A biomass waste drying system according to claim 6, characterized in that: The material conveying unit is a belt conveying structure, and gaps for hot air to pass through are provided on the conveyor belt of the belt conveying structure.
8. A biomass waste drying system according to claim 1, characterized in that: An extrusion machine is provided at the feed inlet of the second material bin.
9. A biomass waste drying system according to claim 6, characterized in that: A plurality of the material conveying units are provided, and are spaced along the height direction of the second drying section.
10. A biomass waste drying system according to claim 1, characterized in that: A plurality of the hot air blowers are provided, and the plurality of hot air blowers are spaced along the length direction of the second drying section.