Agricultural and forestry waste carbonization tar collecting device

Abstract

The utility model provides a kind of forestry waste carbonization tar collection device, by the sectional design of L type smoke exhaust pipeline, combine external condensing component and staggered flow guide structure, significantly improve tar collection efficiency and reduce the risk of blockage, condensing portion of horizontal setting realizes efficient heat exchange by external condensing component, promote tar rapid liquefaction;Interleaved upper and lower conical guide vanes in vertical smoke exhaust portion can slow down the flue gas velocity and guide liquid tar to flow to collection component, its surface polytetrafluoroethylene coating further reduces tar adhesion;Filter plate and induced fan cooperate to effectively separate gas-solid impurities, ensure that flue is unobstructed, the design of heat-resistant sealing ring of connecting flange enhances the sealing reliability under high-temperature working condition, and the combination of conical connecting cylinder and detachable collection cylinder simplifies tar cleaning process;The device is compact in overall structure, stable in operation, especially suitable for small and medium scale forestry waste carbonization scene, with the advantages of high collection efficiency and low maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of agricultural and forestry waste carbonization technology, and in particular to a device for collecting carbonized tar from agricultural and forestry waste. Background Technology

[0002] With the promotion of technologies for the resource utilization of agricultural and forestry waste, biomass carbonization has become an important energy conversion method. During the carbonization process, the flue gas produced by high-temperature pyrolysis contains a large amount of tar, which, if directly emitted, will cause environmental pollution. However, tar itself has potential recycling value. Therefore, developing efficient tar collection devices is of great significance for improving resource utilization and reducing pollution.

[0003] Currently, most existing tar collection devices employ a design combining a direct-flow flue with a simple condensation structure. For example, some devices achieve tar condensation by installing serpentine cooling pipes or spray devices within the flue, with the condensed liquid tar flowing naturally into the collection container by gravity. While this structure achieves initial separation, it has significant drawbacks: First, the high gas velocity in a direct-flow flue leads to insufficient tar condensation and low collection efficiency. Second, the condensation components are typically integrated inside the flue, and after long-term operation, tar residue can easily clog the pipes, making maintenance difficult. Third, existing devices lack sufficient sealing, allowing high-temperature flue gas to leak, and traditional sealing materials are prone to aging and failure at high temperatures, affecting equipment lifespan. Furthermore, tar has strong adhesion, and some devices lack flow guiding or anti-sticking structures, causing tar to accumulate on the inner wall of the flue, further exacerbating the clogging problem.

[0004] To address the aforementioned issues, existing technologies have attempted to improve efficiency by modifying condensation methods or adding filtration structures, but these methods are often difficult to promote due to their complex structures, high manufacturing costs, or poor adaptability. Especially in decentralized, small-scale carbonization scenarios involving agricultural and forestry waste, there is an urgent need for a compact, easy-to-maintain device that can efficiently collect tar to solve key problems such as low condensation efficiency, easy clogging, and poor sealing. Utility Model Content

[0005] The purpose of this invention is to provide a device for collecting carbonized tar from agricultural and forestry waste, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a device for collecting carbonized tar from agricultural and forestry waste, comprising:

[0008] The exhaust duct is L-shaped and consists of a condensation section and an exhaust section connected to it. The condensation section is horizontally arranged, and the exhaust section is vertically arranged.

[0009] A condensation assembly is disposed on the upper part of the condensation section and located outside the condensation section;

[0010] A collection component is disposed at the lower part of the condenser and is sealed to the condenser.

[0011] A filter plate is disposed at the junction of the condensation section and the smoke exhaust section;

[0012] An induced draft fan is provided at the end of the smoke exhaust section.

[0013] Preferably, the end of the exhaust duct is provided with a connecting flange.

[0014] Preferably, the surface of the connecting flange is provided with a sealing groove, and a heat-resistant sealing ring is provided in the sealing groove.

[0015] Preferably, the top side of the condensation section is provided with an upper guide plate, and the bottom side wall of the condensation section is provided with a lower guide plate. The upper guide plate and the lower guide plate are staggered, and the side of the lower guide plate is provided with a through hole communicating with the collection assembly.

[0016] Preferably, both the upper guide plate and the lower guide plate are tapered plates.

[0017] Preferably, the condensation assembly includes a condensation shell, which is sealed to the condensation section. The condensation shell has a condensation channel inside, and the two ends of the condensation channel have an inlet and an outlet, respectively.

[0018] Preferably, the collecting assembly includes a conical connecting cylinder, which is sealed to the condensation section, and a collecting cylinder is screwed to the bottom of the conical connecting cylinder.

[0019] Preferably, the surfaces of the upper guide plate, the lower guide plate, and the conical connecting cylinder are all coated with a polytetrafluoroethylene coating.

[0020] The present invention achieves the following beneficial technical effects compared to the prior art:

[0021] This utility model provides a tar collection device for carbonized agricultural and forestry waste. Through a segmented design of an L-shaped exhaust pipe, combined with an external condenser assembly and a staggered flow guide structure, it significantly improves tar collection efficiency and reduces the risk of blockage. The horizontally positioned condenser section achieves efficient heat exchange through the external condenser assembly, promoting rapid tar liquefaction. The staggered upper and lower conical guide plates within the vertical exhaust section slow the flue gas flow and guide the liquid tar towards the collection assembly; their polytetrafluoroethylene coating further reduces tar adhesion. The combination of the filter plate and the induced draft fan effectively separates gaseous and solid impurities, ensuring unobstructed flue flow. The heat-resistant sealing ring design of the connecting flange enhances sealing reliability under high-temperature conditions, while the combination of the conical connecting cylinder and the detachable collection cylinder simplifies the tar cleaning process. The device has a compact overall structure and stable operation, making it particularly suitable for small- to medium-scale agricultural and forestry waste carbonization scenarios, combining high collection efficiency with low maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of the agricultural and forestry waste carbonization tar collection device provided by this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The purpose of this invention is to provide a device for collecting carbonized tar from agricultural and forestry waste, in order to solve the problems existing in the prior art.

[0026] 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.

[0027] Example 1:

[0028] This embodiment provides a device for collecting carbonized tar from agricultural and forestry waste, such as... Figure 1 As shown, it includes:

[0029] Smoke exhaust duct 1 has an L-shaped structure, which is divided into a condensation section 11 and a smoke exhaust section 12 connected to it. The condensation section 11 is set horizontally, and the smoke exhaust section 12 is set vertically.

[0030] Condensation component 2 is disposed on the upper part of condensation section 11 and located outside of condensation section 11;

[0031] Collection component 3 is disposed at the lower part of condensation section 11 and is sealed to condensation section 11;

[0032] Filter plate 4 is disposed at the junction of condenser section 11 and smoke exhaust section 12;

[0033] The induced draft fan 5 is located at the end of the smoke exhaust section 12.

[0034] In one implementation, the end of the exhaust pipe 1 is provided with a connecting flange 13, which can be directly connected to the carbonization equipment by bolts, so as to discharge the flue gas generated by the carbonization equipment into the exhaust pipe 1.

[0035] In one embodiment, the surface of the connecting flange 13 is provided with a sealing groove 14, and a heat-resistant sealing ring 15 is provided in the sealing groove 14, thereby improving the sealing effect.

[0036] In one embodiment, an upper guide plate 16 is provided on the top side of the condensation section 11, and a lower guide plate 17 is provided on the bottom side wall of the condensation section 11. The upper guide plate 16 and the lower guide plate 17 are staggered, and the side of the lower guide plate 17 is provided with a through hole 18 that communicates with the collection assembly 3. By setting the upper guide plate 16 and the lower guide plate 17, the path of the flue gas can be effectively extended, thereby allowing the tar in it to be fully condensed and separated.

[0037] As one implementation method, both the upper guide plate 16 and the lower guide plate 17 are tapered plates to ensure that the tar flows smoothly downwards.

[0038] In one embodiment, the condensation assembly 2 includes a condensation shell 21, which is sealed to the condensation section 11. The condensation shell 21 is provided with a condensation channel 22, and the two ends of the condensation channel 22 are respectively provided with a water inlet 23 and a water outlet 24. The flue gas is cooled by circulating water, thereby condensing and separating the tar.

[0039] In one embodiment, the collection component 3 includes a conical connecting cylinder 31, which is sealed to the condenser section 11. A collection cylinder 32 is screwed to the bottom of the conical connecting cylinder 31, and the tar can be collected in the collection cylinder 32.

[0040] In one implementation, the surfaces of the upper guide plate 16, the lower guide plate 17, and the conical connecting cylinder 31 are all coated with a polytetrafluoroethylene coating to reduce tar adhesion.

[0041] This utility model provides a tar collection device for carbonized agricultural and forestry waste. Through a segmented design of an L-shaped exhaust pipe, combined with an external condenser assembly and a staggered flow guide structure, it significantly improves tar collection efficiency and reduces the risk of blockage. The horizontally positioned condenser section achieves efficient heat exchange through the external condenser assembly, promoting rapid tar liquefaction. The staggered upper and lower conical guide plates within the vertical exhaust section slow the flue gas flow and guide the liquid tar towards the collection assembly; their polytetrafluoroethylene coating further reduces tar adhesion. The combination of the filter plate and the induced draft fan effectively separates gaseous and solid impurities, ensuring unobstructed flue flow. The heat-resistant sealing ring design of the connecting flange enhances sealing reliability under high-temperature conditions, while the combination of the conical connecting cylinder and the detachable collection cylinder simplifies the tar cleaning process. The device has a compact overall structure and stable operation, making it particularly suitable for small- to medium-scale agricultural and forestry waste carbonization scenarios, combining high collection efficiency with low maintenance costs.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the 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 methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for collecting carbonized tar from agricultural and forestry waste, characterized in that: include: The exhaust duct is L-shaped and consists of a condensation section and an exhaust section connected to it. The condensation section is horizontally arranged, and the exhaust section is vertically arranged. A condensation assembly is disposed on the upper part of the condensation section and located outside the condensation section; A collection component is disposed at the lower part of the condenser and is sealed to the condenser. A filter plate is disposed at the junction of the condensation section and the smoke exhaust section; An induced draft fan is provided at the end of the smoke exhaust section.

2. The agricultural and forestry waste carbonization tar collection device according to claim 1, characterized in that: The exhaust duct is equipped with a connecting flange at its end.

3. The agricultural and forestry waste carbonization tar collection device according to claim 2, characterized in that: The surface of the connecting flange is provided with a sealing groove, and a heat-resistant sealing ring is provided in the sealing groove.

4. The agricultural and forestry waste carbonization tar collection device according to claim 1, characterized in that: The top side of the condensation section is provided with an upper guide plate, and the bottom side wall of the condensation section is provided with a lower guide plate. The upper guide plate and the lower guide plate are staggered, and the side of the lower guide plate is provided with a through hole that communicates with the collection assembly.

5. The agricultural and forestry waste carbonization tar collection device according to claim 4, characterized in that: Both the upper guide plate and the lower guide plate are tapered plates.

6. The agricultural and forestry waste carbonization tar collection device according to claim 5, characterized in that: The condensation assembly includes a condensation shell, which is sealed to the condensation section. The condensation shell has a condensation channel inside, and the two ends of the condensation channel have an inlet and an outlet, respectively.

7. The agricultural and forestry waste carbonization tar collection device according to claim 5, characterized in that: The collection assembly includes a conical connecting cylinder, which is sealed to the condensation section, and a collection cylinder is screwed to the bottom of the conical connecting cylinder.

8. The agricultural and forestry waste carbonization tar collection device according to claim 7, characterized in that: The surfaces of the upper guide plate, the lower guide plate, and the conical connecting cylinder are all coated with polytetrafluoroethylene (PTFE).

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