Smokeless carbonization furnace
By designing a U-shaped shell structure and employing multi-layered purification methods, the problem of flue gas emission pollution from traditional carbonization furnaces has been solved, achieving the purification effect of a smokeless carbonization furnace and ensuring environmental protection and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANAN COUNTY JINGHE NEW ENERGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional carbonization furnaces directly emit high-temperature flue gas during operation, which contains tar, wood vinegar, particulate matter, and harmful gases, causing regional air pollution and equipment failure. Existing flue gas treatment devices are ineffective.
Design a smokeless carbonization furnace that uses a U-shaped shell structure to extend the flue gas path. Combined with atomizing nozzles, multi-layer filters, and activated carbon adsorption, the flue gas is purified multiple times through a purification mechanism, including atomization adsorption, filter interception, and activated carbon adsorption. A guide fan is used to ensure the purification effect.
It achieves smokeless emission of flue gas, effectively reduces pollutants in flue gas, ensures that emissions meet environmental protection requirements, and avoids equipment failure and air pollution.
Smart Images
Figure CN224411674U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of carbonization furnace technology, and particularly relates to a smokeless carbonization furnace. Background Technology
[0002] Currently, carbonization furnaces commonly used in the biomass or coal carbonization field pose significant environmental problems during operation. Traditional carbonization equipment, such as self-combustion carbonization furnaces, relies on the combustion of raw materials to provide heat energy. Although simple in structure, it cannot avoid the direct emission of flue gas. The high-temperature flue gas generated during the carbonization process contains tar, wood vinegar, particulate matter, and harmful gases such as carbon monoxide and sulfur dioxide. Direct emission of these gases forms visible smoke, causing not only regional air pollution but also potential equipment malfunctions due to tar adhesion.
[0003] While existing technologies attempt to treat flue gas by adding devices such as spray towers and electrostatic precipitators, multiple defects have been exposed in practical applications, necessitating improvements. Utility Model Content
[0004] The purpose of this application is to provide a smokeless carbonization furnace that can solve the above-mentioned problems.
[0005] The purpose of this application is to provide a smokeless carbonization furnace, including a base and a furnace body disposed on the base, and a smoke exhaust mechanism for exhausting the flue gas inside the furnace body. The smoke exhaust mechanism includes:
[0006] The casing has a purification space inside, with an air inlet at one end and an exhaust outlet at the other end.
[0007] The gas guide pipe has one end connected to the air inlet of the shell and the other end connected to the flue gas outlet of the furnace body.
[0008] The purification space is equipped with a purification mechanism to purify the flue gas entering the purification space, and the purified flue gas is discharged from the exhaust port.
[0009] The aforementioned smokeless carbonization furnace features a U-shaped design for its rising and falling sections, extending the path of the flue gas as it flows through these sections. This structure allows larger particulate impurities carried by the flue gas to settle naturally due to gravity, thus initially reducing solid pollutants in the flue gas. Simultaneously, the U-shaped path slows the flue gas flow rate, making it easier for the flue gas to contact the purification medium during its ascent and descent, preventing incomplete purification caused by excessively rapid flue gas flow.
[0010] In this application, the various parts of the smoke exhaust system work together to purify the flue gas multiple times through multiple processes, including extending the path, atomization adsorption, filter interception, activated carbon adsorption, and water seal sealing. From the moment the flue gas enters the purification space, it undergoes preliminary treatment in the rising and descending sections to remove some particles and sticky impurities. Then, water is discharged through the water seal in the transition section. Finally, in the exhaust section, the flue gas is treated by filters and activated carbon, ensuring that the flue gas discharged from the exhaust port is purified. This effectively reduces pollutants in the flue gas and achieves smokeless emissions.
[0011] Furthermore, the housing includes an ascending section, a descending section, and an exhaust section connected in sequence, with the exhaust port located on the exhaust section. The ascending and descending sections are U-shaped, and the flue gas passes through the ascending and descending sections in sequence before being discharged from the exhaust section.
[0012] Within the descending section, the atomizing nozzles below the first guiding fan create a multi-layered atomization zone. As the flue gas passes through, the atomized liquid comes into full contact with it. The liquid adsorbs pollutants such as tar and dust from the flue gas, causing these substances to settle with the liquid, thus reducing sticky impurities and fine particles in the flue gas. The first guiding fan, located in the upper part of the descending section, generates airflow that propels the flue gas out, increasing the contact frequency between the flue gas and the atomized liquid and assisting in the exhaust of the flue gas.
[0013] Furthermore: the purification mechanism includes:
[0014] The first guiding fan is located in the upper part of the descending section;
[0015] The second guide fan is located in the discharge section;
[0016] The filter screen is installed inside the discharge section and located above the second guide fan;
[0017] The atomizing nozzle is located within the descending section and below the first guide fan;
[0018] The atomizing nozzles are configured in multiple sets.
[0019] The first guiding fan is installed in the upper part of the descending section. The airflow generated by its operation propels the flue gas downward in the descending section, accelerating the flue gas flow speed and ensuring that the flue gas and atomizing liquid are fully mixed. The second guiding fan is installed in the discharge section. The airflow generated by its operation drives the flue gas upward, forcing the flue gas to pass through the filter screen. This ensures that the flue gas is in full contact with the filter screen and the purification substances in the interlayer, preventing the flue gas from stagnating or short-circuiting in the discharge section. This improves the filter screen's interception efficiency for impurities and the adsorption effect of the purification substances, ensuring that the purified flue gas meets emission requirements.
[0020] Furthermore, a water seal groove is provided at the bottom of the discharge section.
[0021] Furthermore, a transition section is provided between the lower section and the discharge section. The transition section is horizontally positioned, and a water seal trough is formed within the transition section.
[0022] The transition section is horizontally set and has a water seal trough inside. After the flue gas enters the transition section from the descending section, it will pass over the water seal trough. The liquid that falls during the purification process will be discharged and recycled through the water seal trough. At the same time, it can also play a sealing role to prevent the flue gas from escaping. In addition, the horizontal transition section can also guide the settled liquid and impurities into the water seal trough, which is convenient for centralized collection and treatment and reduces the risk of pollutant spillage.
[0023] Furthermore, the filter screen is composed of multiple layers, with interlayers between the multiple filter screens, and purification substances are placed in the interlayers.
[0024] In this application, the filter screen is made of 316L stainless steel or nickel-chromium alloy woven mesh with a porosity of 40-60 mesh, which can effectively intercept residual solid particles and incompletely removed tar impurities in the flue gas. The granular activated carbon in the filter screen interlayer further adsorbs harmful gases and odor substances in the flue gas, locking pollutants inside the activated carbon through physical adsorption, preventing them from being discharged with the flue gas. The airflow from the second guiding fan ensures that the flue gas fully passes through the filter screen, improving the purification efficiency of the filter screen and activated carbon, and significantly reducing the pollutant content in the treated flue gas.
[0025] The beneficial effects of this application are:
[0026] 1. The U-shaped rising and falling sections can extend the flue gas path. Combined with the liquid mist formed by the atomizing nozzle, it can initially settle larger particles and sticky impurities in the flue gas, thereby improving the purification effect.
[0027] 2. By installing multi-layer filters, the remaining solid particles and tar can be intercepted, and the activated carbon in the interlayer can adsorb harmful gases and odors. Under the action of the guide fan, the flue gas is deeply purified, reducing the residue of pollutants.
[0028] 3. By installing a water seal trough in the transition section, a seal is provided to prevent leakage while ensuring drainage and recycling. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of this utility model;
[0030] Figure 2 This is a schematic diagram of the smoke exhaust mechanism of this utility model.
[0031] The attached diagram is labeled as follows: 100, base; 200, furnace body; 300, shell; 310, purification space; 320, air inlet; 330, exhaust outlet; 340, rising section; 350, falling section; 360, discharge section; 370, transition section; 380, water seal trough; 400, air guide pipe; 500, purification mechanism; 510, first guide fan; 520, second guide fan; 530, filter screen; 531, interlayer; 540, atomizing nozzle. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0033] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0034] The smokeless carbonization furnace provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0035] Example 1:
[0036] like Figure 1 and Figure 2 As shown, this application embodiment provides a smokeless carbonization furnace, including a base 100 and a furnace body 200 disposed on the base 100, and also includes a smoke exhaust mechanism for exhausting the flue gas inside the furnace body 200. The smoke exhaust mechanism includes:
[0037] The housing 300 has a purification space 310 inside, with an air inlet 320 at one end and an exhaust outlet 330 at the other end.
[0038] The gas guide pipe 400 has one end connected to the air inlet 320 of the shell 300 and the other end connected to the flue gas outlet of the furnace body 200.
[0039] The purification space 310 is equipped with a purification mechanism 500, which is used to purify the flue gas entering the purification space 310. The purified flue gas is discharged from the exhaust port 330.
[0040] In some embodiments of this application, such as Figure 1 As shown, in the aforementioned smokeless carbonization furnace, the rising section 340 and the falling section 350 of the shell 300 are U-shaped, extending the path of the flue gas as it flows through these sections. This structure allows the larger particulate impurities carried by the flue gas to settle naturally due to gravity during its flow, initially reducing solid pollutants in the flue gas. Simultaneously, the U-shaped path slows down the flue gas flow rate, making it easier for the flue gas to contact the purification medium during its ascent and descent, avoiding incomplete purification caused by excessively rapid flue gas flow.
[0041] In this application, the various parts of the smoke exhaust mechanism work together to purify the flue gas multiple times through multiple processes, including extending the path, atomization adsorption, filter 530 interception, activated carbon adsorption, and water seal sealing. From the moment the flue gas enters the purification space 310, it undergoes preliminary treatment in the rising section 340 and the descending section 350 to remove some particles and sticky impurities. Then, water is discharged through the water seal in the transition section. Finally, in the exhaust section 360, the flue gas is treated by filter 530 and activated carbon, ensuring that the flue gas discharged from the exhaust port 330 is purified. This effectively reduces pollutants in the flue gas and achieves smokeless emission.
[0042] Example 2:
[0043] This application provides a smokeless carbonization furnace, which, in addition to the above-mentioned technical features, also includes the following technical features.
[0044] like Figure 1 and Figure 2 As shown, the housing 300 includes a rising section 340, a falling section 350 and a discharge section 360 connected in sequence. The exhaust port 330 is located on the discharge section 360. The rising section 340 and the falling section 350 are U-shaped. The flue gas passes through the rising section 340 and the falling section 350 in sequence and is discharged from the discharge section 360.
[0045] In this embodiment, the atomizing nozzle 540 within the descending section 350 forms a multi-layered atomizing area below the first guiding fan 510. When flue gas passes through, the atomized liquid comes into full contact with the flue gas. The liquid can adsorb pollutants such as tar and dust in the flue gas, causing these substances to settle with the liquid, reducing viscous impurities and fine particles in the flue gas. The first guiding fan 510 is located in the upper part of the descending section 350, and the airflow it generates pushes the flue gas out, which not only increases the contact frequency between the flue gas and the atomized liquid but also assists in the discharge of the flue gas.
[0046] Example 3:
[0047] This application provides a smokeless carbonization furnace, which, in addition to the above-mentioned technical features, also includes the following technical features.
[0048] like Figure 1 and Figure 2 As shown, the purification unit 500 includes:
[0049] The first guide fan 510 is located in the upper part of the descending section 350;
[0050] The second guide fan 520 is installed inside the discharge section 360;
[0051] The filter screen 530 is installed inside the discharge section 360 and is located above the second guide fan 520;
[0052] Atomizing nozzle 540 is located within the descending section 350 and below the first guide fan 510;
[0053] Among them, the atomizing nozzle 540 is equipped with multiple sets.
[0054] In this embodiment, the first guiding fan 510 is installed in the upper part of the descending section 350. The airflow generated by its operation causes the flue gas to flow downward in the descending section 350, accelerating the flow speed of the flue gas and making the flue gas and atomizing liquid fully mixed. The second guiding fan 520 is installed in the discharge section 360. The airflow generated by its operation drives the flue gas upward, forcing the flue gas to pass through the filter screen 530. This ensures that the flue gas is in full contact with the filter screen 530 and the purification material in the interlayer 531, avoiding the flue gas from being stuck or short-circuited in the discharge section 360. This improves the interception efficiency of the filter screen 530 for impurities and the adsorption effect of the purification material, ensuring that the purified flue gas meets the emission requirements.
[0055] Furthermore, the filter 530 is composed of multiple layers, with an interlayer 531 between the multiple layers of filter 530, and a purification substance is disposed within the interlayer 531.
[0056] In this application, the filter screen 530 is made of 316L stainless steel or nickel-chromium alloy woven mesh with a porosity of 40-60 mesh, which can effectively intercept the remaining solid particles and incompletely removed tar impurities in the flue gas. The granular activated carbon in the interlayer 531 of the filter screen 530 further adsorbs harmful gases and odor substances in the flue gas, locking pollutants inside the activated carbon through physical adsorption, preventing them from being discharged with the flue gas. The airflow of the second guiding fan 520 ensures that the flue gas fully passes through the filter screen 530, improving the purification efficiency of the filter screen 530 and activated carbon, and significantly reducing the pollutant content in the treated flue gas.
[0057] Example 4:
[0058] This application provides a smokeless carbonization furnace, which, in addition to the above-mentioned technical features, also includes the following technical features.
[0059] like Figure 1 and Figure 2 As shown, a water seal trough 380 is provided at the bottom of the discharge section 360.
[0060] Furthermore, a transition section 370 is provided between the lower section and the discharge section 360. The transition section 370 is horizontally positioned, and the water seal trough 380 is located within the transition section 370.
[0061] In this embodiment, the transition section is horizontally arranged and has a water seal trough 380 inside. After the flue gas enters the transition section from the descending section 350, it will pass above the water seal trough 380. The liquid falling during the purification process will be discharged and recycled through the water seal trough 380. At the same time, it can also play a sealing role to prevent the flue gas from escaping. In addition, the horizontal transition section can also guide the settled liquid and impurities into the water seal trough 380 for centralized collection and treatment, reducing the risk of pollutant overflow.
[0062] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0063] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A smokeless carbonization furnace, comprising a base (100) and a furnace body (200) disposed on the base (100), characterized in that: It also includes a flue gas exhaust system for exhausting flue gas from the furnace body (200). The flue gas exhaust system includes: The housing (300) has a purification space (310) inside, an air inlet (320) at one end and an exhaust outlet (330) at the other end; The gas duct (400) is connected at one end to the air inlet (320) of the shell (300) and at the other end to the flue gas outlet of the furnace body (200); The purification space (310) is equipped with a purification mechanism (500) for purifying the flue gas entering the purification space (310), and the purified flue gas is discharged from the exhaust port (330). The housing (300) includes an ascending section (340), a descending section (350) and an exhaust section (360) connected in sequence. The exhaust port (330) is located on the exhaust section (360). The ascending section (340) and the descending section (350) are U-shaped. The flue gas passes through the ascending section (340) and the descending section (350) in sequence and is then discharged from the exhaust section (360). The purification mechanism (500) includes: The first guide fan (510) is located in the upper part of the descending section (350); The second guide fan (520) is located in the discharge section (360); A filter screen (530) is disposed within the discharge section (360) and located above the second guide fan (520); Atomizing nozzle (540) is disposed within the descending section (350) and located below the first guide fan (510); The atomizing nozzle (540) is provided in multiple sets.
2. The smokeless carbonization furnace according to claim 1, characterized in that: A water seal trough (380) is provided at the bottom of the discharge section (360).
3. The smokeless carbonization furnace according to claim 2, characterized in that: A transition section (370) is provided between the descending section (350) and the discharge section (360). The transition section (370) is horizontally arranged, and the water seal trough (380) is opened in the transition section (370).
4. The smokeless carbonization furnace according to claim 1, characterized in that: The filter (530) is composed of multiple layers, with an interlayer (531) between the multiple filter layers (530), and a purifying substance is disposed in the interlayer (531).