A split smoldering device

Abstract

The application provides a split smoldering device, which comprises a smoldering box body, a heat-conducting pipe and a heating pipe, the smoldering box body is internally provided with a reaction cavity for containing smoldering reactants, and the smoldering box body is externally provided with a first external interface and a second external interface; the bottom of the smoldering box body is hingedly connected with a discharging plate; the heat-conducting pipe is provided with a pipe cavity for inserting the heating pipe and a first end and a second end located at two ends of the pipe cavity; the first end and the second end of the heat-conducting pipe are fixed to two opposite side walls in the smoldering box body, respectively; and the first end of the heat-conducting pipe is fixedly connected with the first external interface; the heating pipe is pluggable into the pipe cavity of the heat-conducting pipe; the heating pipe is provided with a first end and a second end; the first end of the heating pipe is connected with a heating device; and the second end of the heating pipe is adjacent to the second end of the heat-conducting pipe. The smoldering box body and the heating pipe are detachable, the heating pipe can be directly inserted into the smoldering box body for smoldering reaction, the smoldering is performed from the middle to the periphery, the smoldering speed is accelerated, and the smoldering efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of smoldering furnace technology, and more particularly to a split-type smoldering device. Background Technology

[0002] Smoldering combustion technology is a widely recognized solid waste thermal treatment technology, particularly effective for sludge treatment. Compared to commonly used sludge treatment technologies, smoldering combustion involves mixing dry sludge particles with sand in a specific ratio, then using a smoldering furnace to achieve self-sustaining smoldering combustion. This method offers advantages such as low energy consumption, safety, high efficiency, and flexible processing. Existing smoldering furnaces are typically integrated structures with an inlet and a outlet. Sludge and other smoldering reactants are added through the inlet, and a heating device inside the furnace smolders the sludge. The resulting ash is discharged through the outlet. Disadvantages include limited furnace capacity and the fact that smoldering usually proceeds from bottom to top, resulting in a slow process. Smoldering large quantities of sludge requires a considerable amount of time, leading to low efficiency. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of the present invention provide a split-type smoldering device, which can improve smoldering efficiency.

[0004] This invention provides a split-type smoldering device, comprising: a smoldering chamber, a heat-conducting pipe, and a heating pipe. The smoldering chamber has a reaction chamber for containing smoldering reactants, and a first external interface for inserting the heating pipe into the smoldering chamber and a second external interface for connecting to an external feeding device or a flue gas treatment device. A discharge plate is connected to the bottom of the smoldering chamber. The heat-conducting pipe has a cavity for inserting the heating pipe and a first end and a second end located at both ends of the cavity. The first end and the second end of the heat-conducting pipe are respectively fixed to two opposite side walls inside the smoldering chamber. The first end of the heat-conducting pipe is fixedly connected to the first external interface. The heating pipe can be inserted and removed into the cavity of the heat-conducting pipe. The heating pipe has a first end and a second end. The first end of the heating pipe is connected to a heating device, and the second end of the heating pipe is adjacent to the second end of the heat-conducting pipe.

[0005] This application, by setting a separable smoldering chamber and heating tube, allows the heating tube to be directly inserted into the smoldering chamber for smoldering reaction, and the smoldering proceeds from the center outwards, which can accelerate the smoldering speed and improve the smoldering efficiency.

[0006] In some embodiments, the smoldering chamber has a third external interface for connecting a blower to the reaction chamber. The second end of the heat-conducting pipe is fixedly connected to the third external interface. A first cover plate is detachably connected to the third external interface. When the heating pipe extends into the chamber, a gap for ventilation is left between the outer wall of the heating pipe and the heat-conducting pipe. Ventilation holes that can prevent incineration ash from passing through are evenly distributed on the heat-conducting pipe. By setting up a ventilation structure, the smoldering speed can be accelerated.

[0007] In some embodiments, a wind distribution plate is fixedly connected to the third external interface, and multiple wind distribution holes are evenly distributed on the wind distribution plate. By setting the wind distribution plate, air can be evenly blown into the gap between the heat conduction pipe and the heating pipe.

[0008] In some embodiments, the aperture of the first external interface is smaller than the outer diameter of the heat pipe, creating a gap for ventilation between the heating pipe and the heat pipe.

[0009] In some embodiments, a limiting block is connected to the heating tube, and when the second end of the heating tube is adjacent to the second end of the heat-conducting tube, the limiting block abuts against the outer surface of the first external interface. This prevents the heating tube from being excessively inserted into the heat-conducting tube and impacting the inner wall of the smoldering chamber or the air distribution plate.

[0010] In some embodiments, when the second end of the heating tube is adjacent to the second end of the heat-conducting tube, the entire heating tube is located within the cavity of the heat-conducting tube, and the heating device abuts against the outer surface of the first external interface. This situation occurs when there is no limiting block on the heating tube; the heating device itself has a limiting function. When the heating tube is fully inserted into the heat-conducting tube, the heating device just abuts against the first external interface, and the heating tube will not collide with the inner wall of the smoldering chamber or the air distribution plate.

[0011] In some embodiments, the top of the smoldering chamber is fixed with lifting points for easy lifting. This facilitates lifting the smoldering chamber and moving it horizontally until the heating tube is inserted into the heat-conducting tube. After smoldering is complete, it can also be lifted to the unloading point for unloading.

[0012] In some embodiments, the split-type smoldering device further includes a movable plate, the bottom of which is provided with wheels, and the upper end of the movable plate supports the smoldering box. The movable plate facilitates the movement of the smoldering box to the heating device and allows the heating tube to be inserted into the heat-conducting tube. The smoldering box can be lifted onto the movable plate via a lifting point on its top.

[0013] In some embodiments, the smoldering chamber is provided with a plurality of heat-conducting pipes, and the outside of the smoldering chamber has a first external interface equal in number to the number of heat-conducting pipes. A heating pipe is inserted into each heat-conducting pipe. Inserting multiple heating pipes can further accelerate the smoldering speed.

[0014] In some embodiments, the first external interface is detachably connected to a second cover plate. When the heating tube is not required, the second cover plate can seal the first external interface to prevent the odor of the sludge from escaping. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings.

[0016] in:

[0017] Figure 1 This is a schematic diagram of the structure of the split-type smoldering device in the embodiments of this application;

[0018] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the heat pipe;

[0020] Figure 4 yes Figure 1 The right view;

[0021] Figure 5 This is a schematic diagram of the usage state when the split-type smoldering device and the heating device are in contact in an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the split-type smoldering device in the embodiments of this application in the state of transportation or non-use;

[0023] Figure 7 This is a schematic diagram of the split-type smoldering device in the embodiments of this application during unloading;

[0024] Figure 8 This is a schematic diagram of the structure when two heating tubes are inserted into the smoldering chamber;

[0025] Figure 9 This is a schematic diagram of a heating device connected to two smoldering chambers simultaneously.

[0026] Figure label:

[0027] 1-Smoldering chamber; 2-Lifting point; 3-Second external interface; 4-Heat pipe; 5-Heating pipe; 6-Limiting block; 7-Wheel; 8-Moving plate; 9-Unloading plate; 10-Air distribution plate; 11-Air distribution hole; 12-First cover plate; 13-Second cover plate; 14-Heating device; 15-First external interface; 16-Ventilation hole; 17-Flue gas treatment device; 18-Blower. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The split-type smoldering device of the present invention is described below with reference to the accompanying drawings.

[0030] like Figure 1-9 As shown, this embodiment of the invention proposes a split-type smoldering device, comprising: a smoldering chamber 1, a heat-conducting pipe 4, and a heating pipe 5. The smoldering chamber 1 has a reaction chamber for containing smoldering reactants, and a first external interface 15 for inserting the heating pipe 5 into the smoldering chamber 1 and a second external interface 3 for connecting to an external feeding device or a flue gas treatment device 17. The bottom of the smoldering chamber 1 is connected to an openable discharge plate 9. The heat-conducting pipe 4 has a cavity for inserting the heating pipe 5 and a first end and a second end located at both ends of the cavity. The first end and the second end of the heat-conducting pipe 4 are respectively fixed to two opposite side walls inside the smoldering chamber 1. The first end of the heat-conducting pipe 4 is fixedly connected to the first external interface 15. The heating pipe 5 can be inserted and removed into the cavity of the heat-conducting pipe 4. The heating pipe 5 has a first end and a second end. The first end of the heating pipe 5 is connected to a heating device 14, and the second end of the heating pipe 5 is adjacent to the second end of the heat-conducting pipe 4.

[0031] This application, by setting a separable smoldering chamber 1 and a heating tube 5, allows the heating tube 5 to be directly inserted into the smoldering chamber 1 to carry out the smoldering reaction, and the smoldering proceeds from the center outwards, which can accelerate the smoldering speed and improve the smoldering efficiency.

[0032] Furthermore, when it is necessary to feed material into the smoldering chamber 1, the second external interface 3 serves as a feed inlet to connect to the feeding device; when smoldering is performed, the second external interface 3 serves as an exhaust outlet to connect to the flue gas treatment device 17. When the second external interface 3 is connected to the feeding device or the flue gas treatment device 17, it can be connected to external equipment via a flange connection.

[0033] Furthermore, the second external interface 3 is equipped with an openable and closable cover. When not in use, the second external interface 3 can be closed, for example, during hoisting, to prevent the odor inside the smoldering box 1 from spreading outward.

[0034] Furthermore, multiple second external interfaces 3 can be provided. When used for feeding, they can feed quickly and make the fabric more uniform. When used for smoke exhaust, they can quickly exhaust smoldering smoke into the smoke treatment device 17.

[0035] Furthermore, the unloading plate 9 is the bottom plate of the smoldering tank 1, and can have various structural forms. For example, one end of the unloading plate 9 is hinged to the side plate of the smoldering tank 1, and the other end is connected to the side plate of the other end of the smoldering tank 1 through a locking mechanism. In use, such as... Figure 7As shown, when the locking mechanism is opened, the unloading plate 9 opens downwards due to its own gravity, allowing material to be unloaded. Alternatively, the unloading plate 9 comprises a first plate and a second plate that are assembled together. One end of the first plate is hinged to the side plate of the smoldering box 1, and one end of the second plate is hinged to the side plate of the other end of the smoldering box 1. The first and second plates are closed together and locked at the closure point by a locking mechanism. In use, when the locking mechanism is opened, the first and second plates open downwards simultaneously due to their own gravity, allowing material to be unloaded. The locking mechanism is a commonly used locking mechanism, and the method of opening the locking mechanism is a conventional operation such as mechanical control or electronic control, which will not be elaborated here.

[0036] Furthermore, the two ends of the heat pipe 4 are fixed to the inner wall of the smoldering box 1 by flanges.

[0037] Furthermore, the heating tube 5 can be a straight tube, a U-shaped tube, or a spiral tube, etc. The heating method of the heating tube 5 can be electric heating or gas heating. As long as the heat conduction tube 4 can reach the smoldering temperature, the smoldering reactants such as sludge can smolder.

[0038] Furthermore, one heating device 14 can be connected to multiple heating tubes 5 to simultaneously smolder multiple smoldering chambers 1, such as... Figure 9 As shown. Multiple heating and smoldering systems can also be used to smolder within the same smoldering chamber 1, such as... Figure 8 As shown.

[0039] In some embodiments, the smoldering chamber 1 has a third external interface for connecting a blower 18 to the reaction chamber. The second end of the heat-conducting pipe 4 is fixedly connected to the third external interface. A first cover plate 12 is detachably connected to the third external interface. When the heating pipe 5 extends into the pipe cavity, a gap for ventilation is left between the outer wall of the heating pipe 5 and the heat-conducting pipe 4. Ventilation holes 16 are evenly distributed on the heat-conducting pipe 4 to prevent the combustion ash from passing through. Figure 3 As shown. By setting up a ventilation structure, the smoldering speed can be accelerated.

[0040] When in use, the first cover 12 is opened, and the third external interface is connected to the blower 18 to blow air into the heat pipe 4. When not in use, the first cover 12 closes the third external interface to prevent internal odors from escaping to the outside.

[0041] It should be noted that the diameter of the ventilation hole 16 is smaller than the minimum outer diameter of the incineration ash particles. This is to prevent the incineration ash from passing through and to prevent the incineration ash from blocking the ventilation gap between the heating pipe 5 and the heat conduction pipe 4, thus causing poor ventilation.

[0042] Furthermore, the number of ventilation holes 16 can be adjusted according to actual needs.

[0043] Furthermore, the connection between the first cover plate 12 and the third external interface can be a conventional connection method such as threaded connection or rubber plug insertion.

[0044] In some embodiments, such as Figure 2 As shown, a wind distribution plate 10 is fixedly connected to the third external interface, and multiple wind distribution holes 11 are evenly distributed on the wind distribution plate 10. By setting the wind distribution plate 10, air can be evenly blown into the gap between the heat conduction pipe 4 and the heating pipe 5.

[0045] Furthermore, the third external interface is circular, and the air distribution plate 10 is disc-shaped and welded to the inner side of the third external interface. The outer side of the third external interface is used to connect with the first cover plate 12 or to the pipeline of the blower 18. For example, the outer side of the third external interface is provided with threads, and the first cover plate 12 can be connected to the third external interface by threads.

[0046] In some embodiments, the aperture of the first external interface 15 is smaller than the outer diameter of the heat pipe 4, thus creating a gap for ventilation between the heating pipe 5 and the heat pipe 4.

[0047] Furthermore, the first external interface 15 has a smooth metal surface, which makes it easier for the heating tube 5 to be inserted into the heat conduction tube 4.

[0048] In some embodiments, a limiting block 6 is connected to the heating tube 5. When the second end of the heating tube 5 is adjacent to the second end of the heat-conducting tube 4, the limiting block 6 abuts against the outer surface of the first external interface 15. This prevents the heating tube 5 from being excessively inserted into the heat-conducting tube 4 and impacting the inner wall of the smoldering chamber 1 or the air distribution plate 10.

[0049] Furthermore, the limiting block 6 can be set at any position such as the upper end face, lower end face, or side face of the heating tube 5, and multiple limiting blocks 6 can be set on the same vertical plane.

[0050] Furthermore, the shape of the limiting block 6 can be any shape, such as rectangular or arc-shaped. Alternatively, the limiting block 6 can be annular and arranged around the outer periphery of the heating tube 5. Or, the limiting block 6 can be rectangular and fitted around the outer periphery of the heating tube 5.

[0051] In some embodiments, when the second end of the heating tube 5 is adjacent to the second end of the heat-conducting tube 4, the entire heating tube 5 is located inside the cavity of the heat-conducting tube 4, and the heating device 14 abuts against the outer surface of the first external interface 15. This is the case where the heating tube 5 is not provided with a limiting block 6. The heating device 14 itself has a limiting function. When the heating tube 5 is fully inserted into the heat-conducting tube 4, the heating device 14 just abuts against the first external interface 15, and the heating tube 5 will not hit the inner wall of the smoldering box 1 or the air distribution plate 10.

[0052] In some embodiments, the top of the smoldering chamber 1 is fixed with lifting points 2 for lifting. This facilitates lifting the smoldering chamber 1 and moving it horizontally until the heating pipe 5 is inserted into the heat-conducting pipe 4. After smoldering is completed, it can also be lifted to the unloading location for unloading.

[0053] Furthermore, multiple lifting points 2 can be provided.

[0054] In some embodiments, the split-type smoldering device further includes a movable plate 8, with wheels 7 at its bottom and the upper end of the movable plate 8 supporting the smoldering box 1. The movable plate 8 facilitates the movement of the smoldering box 1 to the heating device 14, allowing the heating tube 5 to be inserted into the heat-conducting tube 4. The smoldering box 1 can be lifted onto the movable plate 8 via the lifting point 2 at the top of the smoldering box 1.

[0055] Furthermore, a drive device can be connected to the movable plate 8 to drive the movement of the wheel 7.

[0056] Furthermore, wheel 7 can be automatically controlled via reducers, controllers, etc., to facilitate control of direction, speed, start and stop. It can also be controlled remotely. The corresponding devices and control methods are all conventional technologies and will not be elaborated upon here.

[0057] Furthermore, a track that matches the wheel 7 can be set, and the wheel travels along the track to the heating device 14, where it can be directly connected to the heating pipe 5.

[0058] Furthermore, the smoldering box 1 or the movable plate 8 is equipped with a push rod or other mechanism that facilitates pushing, so that the smoldering box 1 can be moved to a designated position by manual pushing.

[0059] Furthermore, if the unloading plate 9 at the bottom of the smoldering box 1 is equipped with a locking device, a groove is provided on the moving plate 8 to accommodate the locking device, so that the smoldering box 1 can be placed flat on the moving plate 8.

[0060] Furthermore, a limiting baffle may be provided at the edge of the movable plate 8 to prevent the smoldering box 1 from falling off the movable plate 8 during movement.

[0061] In some embodiments, the smoldering chamber 1 is provided with a plurality of heat-conducting pipes 4, and the smoldering chamber 1 has a first external interface 15 with the same number of heat-conducting pipes 4. A heating pipe 5 is inserted into each heat-conducting pipe 4. Inserting a plurality of heating pipes 5 can further accelerate the smoldering speed. Correspondingly, the same number of air distribution plates 10 and first cover plates 12 as the heating pipes 5 are provided.

[0062] In some embodiments, such as Figure 6 As shown, the first external interface 15 is detachably connected to the second cover plate 13. When the heating tube 5 is not needed, the second cover plate 13 can be used to seal the first external interface 15 to prevent the odor of the sludge from escaping.

[0063] Furthermore, the connection between the second cover plate 13 and the first external interface 15 is a conventional detachable method such as threaded connection or rubber plug insertion.

[0064] It should be noted that all components involved in this application are made of high-temperature resistant materials.

[0065] In use, place the smoldering chamber 1 on the movable plate 8 and move it to the feeding position. Connect the second external interface 3 to the feeding device and inject smoldering reactants such as sludge particles and medium sand into the smoldering chamber 1. After feeding is complete, move it to the heating device 14, open the second cover plate 13, and move the first external interface 15 to align with the heating tube 5 so that the heating tube 5 is inserted into the heat conduction tube 4. Connect the second external interface 3 to the flue gas treatment device 17 and the third external interface to the blower device 18. The heating device 14 heats the heating tube 5 until its temperature reaches the smoldering temperature, causing the smoldering reactants to begin smoldering. Alternatively, the heating device 14 can preheat the heating tube 5 to the smoldering temperature, allowing the smoldering reaction to proceed directly after the heating tube 5 is inserted into the heat conduction tube 4. Turn on the blower device 18 to blow air onto the smoldering reactants, accelerating the smoldering speed. The flue gas generated by smoldering enters the flue gas treatment device 17 for treatment. After the smoldering reaction is complete, incineration ash is produced. Move the smoldering container 1 to the unloading point, use the lifting device to lift the smoldering container 1, move it to the unloading pit, open the unloading plate 9, and dump the incineration ash.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In this invention, the term "some embodiments," etc., refers to specific features, structures, materials, or characteristics described in connection with that embodiment, which are included in at least one embodiment of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiments. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments. Moreover, those skilled in the art can combine and integrate the different embodiments described in this specification and the features of the different embodiments without contradiction.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A split-type smoldering device, characterized in that, include: The smoldering chamber has a reaction chamber for containing smoldering reactants, and a first external interface for inserting a heating tube into the smoldering chamber and a second external interface for connecting an external feeding device or a flue gas treatment device. The bottom of the smoldering chamber is connected to an openable unloading plate. A heat-conducting pipe having a cavity for inserting into a heating pipe and a first end and a second end located at both ends of the cavity, the first end and the second end of the heat-conducting pipe being fixed to two opposite side walls of the combustion chamber, and the first end of the heat-conducting pipe being fixedly connected to the first external interface. A heating tube, which can be inserted into the cavity of the heat-conducting tube, is used for smoldering from the center outwards. The heating tube has a first end and a second end. The first end of the heating tube is connected to a heating device, and the second end of the heating tube is adjacent to the second end of the heat-conducting tube. The smoldering chamber has a third external interface for connecting a blower to the reaction chamber. The second end of the heat-conducting pipe is fixedly connected to the third external interface. A first cover plate is detachably connected to the third external interface. When the heating pipe extends into the cavity, a gap for ventilation is left between the outer wall of the heating pipe and the heat-conducting pipe. Ventilation holes that can prevent incineration ash from passing through are evenly distributed on the heat-conducting pipe. An air distribution plate is fixedly connected to the third external interface, and multiple air distribution holes are evenly distributed on the air distribution plate. The diameter of the holes in the first external interface is smaller than the outer diameter of the heat-conducting pipe. The smoldering chamber is equipped with multiple heat-conducting pipes, and the outside of the smoldering chamber has a first external interface with the same number of heat-conducting pipes. A heating pipe is inserted into each heat-conducting pipe.

2. The split-type smoldering device according to claim 1, characterized in that, A limiting block is connected to the heating tube. When the second end of the heating tube is adjacent to the second end of the heat-conducting tube, the limiting block abuts against the outer surface of the first external interface.

3. The split-type smoldering device according to claim 1, characterized in that, When the second end of the heating tube is adjacent to the second end of the heat-conducting tube, the entire heating tube is located inside the cavity of the heat-conducting tube, and the heating device abuts against the outer surface of the first external interface.

4. The split-type smoldering device according to claim 1, characterized in that, The top of the smoldering box is fixed with lifting points for hoisting.

5. The split-type smoldering device according to any one of claims 1-4, characterized in that, It also includes a movable plate, the bottom of which is provided with wheels, and the upper end of which supports the smoldering box.

6. The split-type smoldering device according to claim 1, characterized in that, The first external interface is detachably connected to the second cover plate.

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