Material cooling device and organic solid waste treatment system

Abstract

The application relates to a material cooling device for cooling material after organic solid waste is cracked by a cracking device, which comprises an outer cylinder, an inner cylinder and a stirring assembly, the inner cylinder is sleeved in the inner part of the outer cylinder, a wind cooling channel is formed between the inner cylinder and the outer cylinder, the stirring assembly is arranged in the inner part of the inner cylinder, the device further comprises an air inlet and an air outlet connected with the wind cooling channel, and a feeding port and a discharging port connected with the inner cylinder. The material cooling device provided by the application is used in the following way: high-temperature material enters the inner cylinder through the feeding port, the stirring assembly is operated for stirring, cold air enters the wind cooling channel from the air inlet, flows out from the air outlet after heat exchange with the inner cylinder, and the material is discharged from the discharging port after passing through the inner cylinder. The above process realizes a water-free, closed and uniform heat exchange mode, thereby remarkably improving the safety of the material cooling process.

Description

Technical Field

[0001] This application relates to the field of organic solid waste treatment equipment technology, and in particular to a material cooling device and an organic solid waste treatment system. Background Technology

[0002] Organic solid waste refers to solid organic substances generated in production, daily life and other activities that have lost their original utilization value or have been discarded or abandoned even if they have not lost their utilization value. Organic solid waste can cause great pollution to the environment. The existing recycling and treatment methods for organic solid waste are mainly incineration power generation. However, incineration power generation is not only seriously polluting, but also difficult to generate economic benefits; moreover, the recovery rate of metal-containing waste is low, thus restricting the high-value utilization of organic solid waste, the efficient recovery of metals and the development of carbon materials.

[0003] The process of treating organic solid waste involves cooling the materials, which requires rapid cooling or waste heat recovery to improve energy efficiency. However, the materials generated from organic solid waste have complex compositions, and the current cooling devices are water-cooled, which can only achieve cooling and have low safety.

[0004] Therefore, how to improve the safety of material cooling is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] This application provides a material cooling device and an organic solid waste treatment system to improve the safety of material cooling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A material cooling device for cooling materials after pyrolysis of organic solid waste by a pyrolysis device, comprising an outer cylinder, an inner cylinder, and a stirring assembly, wherein the inner cylinder is sleeved inside the outer cylinder, and an air-cooling channel is formed between the inner cylinder and the outer cylinder, and the stirring assembly is disposed inside the inner cylinder; It also includes a feed inlet, the first end of which is connected to the pyrolysis device, and the second end of which is connected to the interior of the inner cylinder and to the first end of the inner cylinder; It also includes a discharge port, which is connected to the inner cylinder and to the second end of the inner cylinder; It also includes an air inlet, which is connected to the first end of the outer cylinder, and the first end of the outer cylinder is located close to the first end of the inner cylinder; It also includes an air outlet, which is connected to the second end of the outer cylinder, and the second end of the outer cylinder is located close to the second end of the inner cylinder; Both the air inlet and the air outlet are connected to the air-cooling channel.

[0007] Optionally, in the above-mentioned material cooling device, the stirring assembly includes a driving component and a shaftless spiral auger. The driving component is connected to the outside of the second end of the outer cylinder and is connected to the shaftless spiral auger to drive the shaftless spiral auger to rotate.

[0008] Optionally, in the above-mentioned material cooling device, the stirring assembly further includes a plurality of stirring blades, which are connected to the shaftless spiral auger along the axial direction of the inner cylinder for stirring the material inside the inner cylinder.

[0009] Optionally, the above-mentioned material cooling device further includes an induced draft fan, the air outlet end of which is connected to an air outlet channel, and the induced draft fan is disposed inside the air outlet channel to introduce the cold air inside the air-cooling channel into the air outlet channel.

[0010] Optionally, the above-mentioned material cooling device further includes a nitrogen supply component and a nitrogen channel, wherein the nitrogen supply component is connected to the nitrogen channel, the nitrogen channel is connected to the inner cylinder, and the nitrogen supply component is used to fill the interior of the inner cylinder with nitrogen.

[0011] Optionally, the above-mentioned material cooling device further includes a plurality of heat sinks, one end of which is connected to the outer wall of the inner cylinder and the other end of which is connected to the inner wall of the outer cylinder. The plurality of heat sinks are arranged circumferentially on the inner cylinder and staggered along the axial direction of the inner cylinder.

[0012] Optionally, in the above-mentioned material cooling device, the heat sink is square, and the first end of the heat sink is welded to the inner cylinder, and the second end of the heat sink is welded to the outer cylinder.

[0013] Optionally, in the above-mentioned material cooling device, the heat sink is T-shaped, and the horizontal part of the T-shaped heat sink is connected to the outer wall of the inner cylinder, and the vertical part of the T-shaped heat sink is connected to the inner wall of the outer cylinder.

[0014] Optionally, in the above-mentioned material cooling device, the inner cylinder and the outer cylinder are inclined, and in the vertical direction, the height of the first end of the inner cylinder is lower than the height of the second end of the inner cylinder; The pyrolysis device is vertically positioned at the top of the feed inlet.

[0015] The material cooling device provided by this utility model allows high-temperature materials to enter the inner cylinder through the feed inlet. The stirring component performs stirring, while cold air enters the cooling channel through the air inlet, exchanges heat with the inner cylinder, and then flows out through the air outlet. The material, after passing through the inner cylinder, is discharged from the discharge outlet. This process achieves a waterless, sealed, and uniform heat exchange method, thereby significantly improving the safety of the material cooling process.

[0016] This application also provides an organic solid waste treatment system, including a pyrolysis device and a material cooling device as described in any of the above embodiments, wherein the pyrolysis device is used to pyrolyze the organic solid waste into a mixture of biomass residue and carbon powder.

[0017] The organic solid waste treatment system provided by this utility model includes all the technical effects of the above-mentioned material cooling device, which will not be repeated here. Attached Figure Description

[0018] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort. One or more embodiments are illustrated by way of example through the corresponding images in the accompanying drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0019] Figure 1 This is a schematic diagram of the material cooling device provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: Outer cylinder 100, inner cylinder 200, feed inlet 201, discharge outlet 202, air-cooled channel 300, air inlet 301, air outlet 302, induced draft fan 303, air outlet channel 304, drive component 400, shaftless spiral auger 401, stirring plate 402, nitrogen channel 500. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] See Figure 1 This application provides a material cooling device for cooling materials after pyrolysis of organic solid waste by a pyrolysis unit. The device includes an outer cylinder 100, an inner cylinder 200, and a stirring assembly. The inner cylinder 200 is fitted inside the outer cylinder 100, forming an air-cooling channel 300 between them. The stirring assembly is disposed inside the inner cylinder 200. The device also includes a feed inlet 201, with a first end connected to the pyrolysis unit and a second end connected to the interior of the inner cylinder 200. The first end also includes a discharge port 202, which is connected to the inner cylinder 200 and connected to the second end of the inner cylinder 200. It also includes an air inlet 301, which is connected to the first end of the outer cylinder 100. The first end of the outer cylinder 100 is located close to the first end of the inner cylinder 200. It also includes an air outlet 302, which is connected to the second end of the outer cylinder 100. The second end of the outer cylinder 100 is located close to the second end of the inner cylinder 200. Both the air inlet 301 and the air outlet 302 are connected to the air-cooling channel 300.

[0025] Specifically, the pyrolysis unit is used to pyrolyze compressed organic solid waste and transfer the resulting biomass residue and carbon powder mixture to the material cooling unit. At this time, the temperature of the biomass residue and carbon powder mixture is high. The biomass residue and carbon powder mixture is the material in the "material cooling unit" of this application. The material is cooled by transferring it to the air-cooled material cooling unit (in the water-cooled mode, water may cause steam explosion or chemical reaction when it comes into contact with high-temperature materials, which may affect production safety. The design of the air-cooled channel 300 can also improve the cooling efficiency and remove heat through air flow) so that it can be further processed by subsequent units.

[0026] The material cooling device provided by this utility model allows high-temperature materials to enter the inner cylinder 200 through the feed inlet 201. The stirring component performs stirring, while cold air enters the air-cooling channel 300 through the air inlet 301, exchanges heat with the inner cylinder 200, and then flows out through the air outlet 302. The material, after passing through the inner cylinder 200, is discharged from the discharge outlet 202. This process achieves a waterless, sealed, and uniform heat exchange method, thereby significantly improving the safety of the material cooling process.

[0027] To optimize the above technical solution, the stirring assembly includes a drive unit 400 and a shaftless spiral auger 401. The drive unit 400 is connected to the outside of the second end of the outer cylinder 100 and is connected to the shaftless spiral auger 401 to drive the shaftless spiral auger 401 to rotate.

[0028] Specifically, by selecting the shaftless spiral auger 401, on the one hand, the space occupied by the mixing components is reduced, which is beneficial to material conveying; on the other hand, the area of ​​the spiral blades can be increased, thereby improving the material conveying efficiency.

[0029] Specifically, the drive unit 400 (including but not limited to drive equipment such as motors) drives the shaftless spiral auger 401 to rotate in the inner cylinder 200 through the transmission mechanism. The auger 401 has continuous spiral blades, which can push the material from the feed port 201 to the discharge port 202, and at the same time realize the tumbling and lifting of the material.

[0030] By setting up the drive unit 400 and the shaftless spiral auger 401, the material can be slowly propelled in the inner cylinder 200, thereby avoiding dust flying caused by rapid conveying. At the same time, the heat exchange time of the material in the inner cylinder 200 is extended. Furthermore, the shaftless design of the shaftless spiral auger 401 can reduce material adhesion, reduce the risk of blockage, and improve the conveying efficiency and heat exchange efficiency of the material.

[0031] To optimize the above technical solution, the stirring assembly also includes multiple stirring blades 402, which are connected to the shaftless spiral auger 401 along the axial direction of the inner cylinder 200 for stirring the materials inside the inner cylinder 200.

[0032] Specifically, the shaftless spiral auger 401 has spiral blades, and the two ends of the stirring plate 402 are respectively connected to the blades at different positions along the axial direction. When the shaftless spiral auger 401 rotates, the blades cut the material around the axis.

[0033] Specifically, the stirring blade 402 is welded or fixed to the shaftless spiral auger 401 and rotates with it to forcibly stir the material, break up material clumps, increase the contact area between the material and the inner wall of the inner cylinder 200, make the material contact the inner cylinder 200 wall more fully, enhance heat exchange, and thus improve cooling efficiency.

[0034] This arrangement makes the mixing components more suitable for mixing easily sticky charcoal powder or biomass residues, preventing clumping, thus avoiding localized high temperatures and improving the safety of the device.

[0035] To optimize the above technical solution, the material cooling device also includes an induced draft fan 303. The air outlet 302 is connected to an air outlet channel 304. The induced draft fan 303 is located inside the air outlet channel 304 and is used to introduce the cold air inside the air-cooled channel 300 into the air outlet channel 304.

[0036] Specifically, the induced draft fan 303 is installed in the air outlet duct 304. It draws cold air from the air inlet 301 into the air-cooling duct 300 through negative pressure, flows through the inner cylinder 200 and is discharged from the air outlet 302, forming a forced flow, thereby enhancing the air-cooling efficiency and improving the cooling effect.

[0037] To optimize the above technical solution, the material cooling device also includes a nitrogen supply component and a nitrogen channel 500. The nitrogen supply component is connected to the nitrogen channel 500, and the nitrogen channel 500 is connected to the inner cylinder 200. The nitrogen supply component is used to fill the interior of the inner cylinder 200 with nitrogen.

[0038] It should be noted that high-temperature carbon powder mixtures need to be rapidly cooled or have waste heat recovered to improve energy utilization. However, due to its special physicochemical properties, carbon powder faces problems such as high abrasiveness, easy dust generation, poor thermal conductivity during cooling, and flammability and explosiveness. Therefore, heat exchange equipment needs to have high safety.

[0039] Specifically, the nitrogen supply components include, but are not limited to, nitrogen cylinders or nitrogen generators. During the operation of the material cooling device, nitrogen is continuously introduced into the inner cylinder 200 through the nitrogen channel 500 to replace the air in the inner cylinder 200, reduce the oxygen concentration, and the inert atmosphere can eliminate the possibility of spontaneous combustion or explosion of the material, while avoiding oxidation of the carbon powder, maintaining its chemical stability, and improving safety.

[0040] Furthermore, depending on the usage requirements, an oxygen concentration monitoring and automatic nitrogen replenishment device can be integrated inside the inner cylinder 200 to achieve automated control of the nitrogen and oxygen content in the air, thereby achieving safe production.

[0041] To optimize the above technical solution, the material cooling device also includes multiple heat sinks. One end of the heat sink is connected to the outer wall of the inner cylinder 200, and the other end of the heat sink is connected to the inner wall of the outer cylinder 100. The multiple heat sinks are arranged circumferentially in the inner cylinder 200 and staggered along the axial direction of the inner cylinder 200.

[0042] Specifically, the heat sink connects the outer wall of the inner cylinder 200 to the inner wall of the outer cylinder 100, increasing the heat conduction area and enhancing the air cooling effect. Furthermore, the multiple heat sinks are arranged in an alternating manner to create turbulence, thereby enhancing the heat exchange effect.

[0043] Specifically, the heat sinks can be distributed in the following ways: in the circumferential direction, one or more heat sinks are staggered within a ring formed per unit width; in the axial direction, multiple heat sinks are staggered, thereby creating turbulence, extending the heat exchange time of the airflow, and enhancing the heat exchange effect.

[0044] Furthermore, heat sinks can adopt enhanced structures such as finned or corrugated designs to improve heat exchange performance.

[0045] To optimize the above technical solution, the heat sink is square, and the first end of the heat sink is welded to the inner cylinder 200, and the second end of the heat sink is welded to the outer cylinder 100.

[0046] Specifically, the side length of the heat sink can be 10~15cm.

[0047] Specifically, the welding connection method makes the connection structure stable, the heat conduction path short, and the thermal resistance low, which can improve the heat exchange performance.

[0048] To optimize the above technical solution, the heat sink is T-shaped, with the horizontal part of the T-shaped heat sink connected to the outer wall of the inner cylinder 200 and the vertical part of the T-shaped heat sink connected to the inner wall of the outer cylinder 100.

[0049] Specifically, the horizontal part of the T-shaped heat sink is connected to the inner cylinder 200, and the vertical part is connected to the outer cylinder 100, forming a larger contact area and improving structural stability.

[0050] In some embodiments, the vertical portion of the T-shaped heat sink is arranged close to the inner wall of the outer cylinder 100 and is not connected to the inner wall of the outer cylinder 100. It is also arranged at an angle to guide the airflow direction and enhance heat exchange.

[0051] Specifically, the T-shaped heat sink design is vibration resistant, effectively prevents deformation, and improves structural strength.

[0052] It should be noted that when the height of the first end of the inner cylinder 200 is higher than the height of the second end of the inner cylinder 200 in the vertical direction, the material can enter from the feed port 201 and reach the discharge port 202 by gravity, while the stirring component plays a stirring role.

[0053] To optimize the above technical solution, the inner cylinder 200 and the outer cylinder 100 are inclined, and in the vertical direction, the height of the first end of the inner cylinder 200 is lower than the height of the second end of the inner cylinder 200, and the pyrolysis device is vertically arranged at the top of the feed inlet 201.

[0054] Specifically, in the vertical direction, the material enters the lower feed port 201, climbs upward along the inner cylinder, and at the same time, the stirring component plays a stirring role, reaching the higher discharge port 202. This can extend the conveying time of the material in the inner cylinder 200, thereby extending the heat exchange time of the material and ensuring the heat exchange effect.

[0055] Specifically, the pyrolysis device is vertically positioned at the top of the feed inlet 201, which facilitates the natural discharge of materials and prevents material blockage.

[0056] Secondly, this application also provides an organic solid waste treatment system, including a pyrolysis device and a material cooling device as described in any of the above embodiments. The pyrolysis device is used to pyrolyze the organic solid waste into a mixture of biomass residue and carbon powder. The specific structure of the material cooling device is as described in the above embodiments. Since this organic solid waste treatment system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] It should be noted that the material cooling device and organic solid waste treatment system provided by this utility model can be used in the field of organic solid waste treatment equipment technology or other fields. Other fields refer to any field other than the field of organic solid waste treatment equipment technology. The above are merely examples and do not limit the application areas of the material cooling device and organic solid waste treatment system provided by this utility model.

[0058] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0059] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0060] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A material cooling device, characterized in that, The cooling device is used to cool the material after the organic solid waste has been pyrolyzed by the pyrolysis unit. It includes an outer cylinder, an inner cylinder and a stirring assembly. The inner cylinder is sleeved inside the outer cylinder, and an air-cooling channel is formed between the inner cylinder and the outer cylinder. The stirring assembly is disposed inside the inner cylinder. It also includes a feed inlet, the first end of which is connected to the pyrolysis device, and the second end of which is connected to the interior of the inner cylinder and to the first end of the inner cylinder; It also includes a discharge port, which is connected to the inner cylinder and to the second end of the inner cylinder; It also includes an air inlet, which is connected to the first end of the outer cylinder, and the first end of the outer cylinder is located close to the first end of the inner cylinder; It also includes an air outlet, which is connected to the second end of the outer cylinder, and the second end of the outer cylinder is located close to the second end of the inner cylinder; Both the air inlet and the air outlet are connected to the air-cooling channel.

2. The material cooling device according to claim 1, characterized in that, The stirring assembly includes a driving component and a shaftless spiral auger. The driving component is connected to the outside of the second end of the outer cylinder and is connected to the shaftless spiral auger to drive the shaftless spiral auger to rotate.

3. The material cooling device according to claim 2, characterized in that, The stirring assembly also includes multiple stirring blades, which are connected to the shaftless spiral auger along the axial direction of the inner cylinder for stirring the material inside the inner cylinder.

4. The material cooling device according to claim 1, characterized in that, It also includes an exhaust fan, and the air outlet is connected to an air outlet channel. The exhaust fan is located inside the air outlet channel and is used to introduce the cold air inside the air-cooled channel into the air outlet channel.

5. The material cooling device according to claim 1, characterized in that, It also includes a nitrogen supply component and a nitrogen channel, wherein the nitrogen supply component is connected to the nitrogen channel, and the nitrogen channel is connected to the inner cylinder, and the nitrogen supply component is used to fill the interior of the inner cylinder with nitrogen.

6. The material cooling device according to claim 1, characterized in that, It also includes multiple heat sinks, one end of which is connected to the outer wall of the inner cylinder and the other end of which is connected to the inner wall of the outer cylinder. The multiple heat sinks are arranged circumferentially on the inner cylinder and staggered along the axial direction of the inner cylinder.

7. The material cooling device according to claim 6, characterized in that, The heat sink is square, and the first end of the heat sink is welded to the inner cylinder, and the second end of the heat sink is welded to the outer cylinder.

8. The material cooling device according to claim 6, characterized in that, The heat sink is T-shaped, with the horizontal part of the T-shaped heat sink connected to the outer wall of the inner cylinder and the vertical part of the T-shaped heat sink connected to the inner wall of the outer cylinder.

9. The material cooling device according to any one of claims 1-8, characterized in that, The inner cylinder and the outer cylinder are inclined, and in the vertical direction, the height of the first end of the inner cylinder is lower than the height of the second end of the inner cylinder; The pyrolysis device is vertically positioned at the top of the feed inlet.

10. An organic solid waste treatment system, characterized in that, It includes a pyrolysis unit and a material cooling device as described in any one of claims 1 to 9, wherein the pyrolysis unit is used to pyrolyze the organic solid waste into a mixture of biomass residue and carbon powder.

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