Carbonization furnace waste heat recovery steam boiler
By designing the filtration and cleaning components for the waste heat recovery steam boiler of the carbonization furnace, the problem of reduced heat transfer efficiency caused by the deposition of solid particles in the flue gas was solved, and smooth flue gas flow and efficient heat transfer were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BODUAN INTELLIGENT EQUIP (ZHENJIANG) CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
Solid particles, tar, sulfide condensates and other impurities carried in flue gas are prone to deposition, adhesion and even agglomeration when flowing through pipes and heat exchange equipment, which leads to a reduction in the flow cross-sectional area, increases the flow resistance of flue gas and reduces the heat transfer efficiency.
Design a carbonization furnace waste heat recovery steam boiler, including a support, boiler assembly, waste heat recovery assembly, filter assembly, and cleaning assembly. The filter assembly blocks solid particles in the flue gas, and the cleaning assembly cleans the solid particles on the filter screen to prevent them from accumulating in the waste heat recovery assembly.
It effectively prevents solid particles from accumulating in the waste heat recovery component, maintains heat transfer efficiency, prevents filter clogging, and ensures smooth flue gas flow.
Smart Images
Figure CN224202213U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steam boiler technology, and specifically relates to a steam boiler for recovering waste heat from a carbonization furnace. Background Technology
[0002] The carbonization furnace converts raw materials into charcoal through a dry distillation process, releasing volatile gases and waste heat. The waste heat can be recovered and used to heat a boiler. The boiler receives water heated by a heat exchanger through the inlet and uses the waste heat of the flue gas to generate steam or high-temperature water, which can be directly used for industrial production (such as heating and power generation) or domestic heating.
[0003] Solid particles (such as unburned carbon powder and dust), tar, sulfide condensates and other impurities carried in flue gas are prone to deposition, adhesion and even agglomeration when flowing through pipes and heat exchange equipment. This will reduce the flow cross-sectional area, increase the flow resistance of flue gas and reduce the heat transfer efficiency. Utility Model Content
[0004] To address the problem that solid particles (such as unburned carbon powder and dust), tar, sulfide condensates, and other impurities carried in flue gas are prone to deposition, adhesion, or even agglomeration when flowing through pipes and heat exchange equipment, which reduces the flow cross-sectional area, increases flue gas flow resistance, and leads to a decrease in heat transfer efficiency, this utility model proposes a carbonization furnace waste heat recovery steam boiler to overcome the above-mentioned technical problems existing in the existing related technologies.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a waste heat recovery steam boiler for carbonization furnaces, comprising a support, a boiler assembly mounted on the top of the support, a waste heat recovery assembly mounted on the outer surface of the boiler assembly, a filter assembly mounted on the outer surface of the waste heat recovery assembly, and a cleaning assembly mounted inside the filter assembly. The waste heat recovery assembly is used to recover waste heat from the carbonization furnace to heat the boiler assembly, the filter assembly is used to filter the flue gas from the carbonization furnace, and the cleaning assembly is used to clean the filter assembly.
[0007] Furthermore, the boiler assembly includes a boiler body, which is fixedly installed on the top of the support. An inlet pipe and an outlet pipe are fixedly connected to the outer surface of the boiler body, respectively. The inlet pipe is located above the boiler body, and the outlet pipe is located below the boiler body. A valve is fixedly installed on the outer surface of the outlet pipe. The boiler body, the inlet pipe, and the outlet pipe are interconnected.
[0008] Furthermore, the waste heat recovery assembly includes a main recovery pipe, which is fixedly connected to the furnace body. An auxiliary recovery pipe is fixedly connected to the outer surface of the main recovery pipe. A one-way valve is fixedly installed on the outside of the auxiliary recovery pipe. The portion of the main recovery pipe inside the furnace body is S-shaped. The furnace body, the main recovery pipe, and the auxiliary recovery pipe are interconnected.
[0009] Furthermore, the filter assembly includes a filter tube, which is fixedly installed at the end of the main recovery pipe. A slag discharge pipe is fixedly connected to the outer surface of the filter tube, and a filter screen is fixedly connected inside the filter tube. The filter tube and the slag discharge pipe are interconnected.
[0010] Furthermore, the cleaning assembly includes a fixed base, which is fixedly connected to the outer surface of the filter tube. A first rotating rod is rotatably connected inside the fixed base. A first bevel gear is fixedly connected to the end of the first rotating rod. A second bevel gear meshes with the outer surface of the first bevel gear. A second rotating rod is fixedly connected to the outer surface of the second bevel gear. A cleaning rod is fixedly connected to the end of the second rotating rod. A support plate is rotatably connected to the outer surface of the second rotating rod. The support plate is fixedly connected inside the filter tube.
[0011] Furthermore, a flange is installed between the main recovery pipe and the filter pipe.
[0012] Furthermore, the outer surface of the support plate is provided with a waist-shaped groove.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model connects the waste heat recovery component and the filter component. The filter component is located at the air inlet of the waste heat recovery component. The flue gas generated by the carbonization furnace enters the waste heat recovery component after passing through the filter component. The solid particles carried in the flue gas are blocked by the filter component, so that the solid particles remain in the filter component, avoiding the accumulation of solid particles in the waste heat recovery component and thus affecting the heat transfer efficiency.
[0015] 2. This utility model connects the first rotating rod and the second rotating rod. Rotating the first rotating rod drives the first bevel gear to rotate, and the first bevel gear drives the second rotating rod to rotate through the second bevel gear. The cleaning rod at the end of the second rotating rod rotates accordingly. During the rotation, the cleaning rod comes into contact with the solid particles adhering to the outer surface of the filter screen and scrapes the solid particles off the outer surface of the filter screen, thereby cleaning the filter screen and preventing filter screen blockage.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the external contour structure of the present invention. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the external contour structure of the present invention. Figure 2 ;
[0020] Figure 3 This is a cross-sectional view of the present invention. Figure 1 ;
[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0022] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model;
[0023] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point B.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Support; 2. Boiler assembly; 201. Boiler body; 202. Inlet pipe; 203. Outlet pipe; 204. Valve; 3. Waste heat recovery assembly; 301. Main recovery pipe; 302. Auxiliary recovery pipe; 303. Check valve; 4. Filter assembly; 401. Filter pipe; 402. Slag discharge pipe; 403. Filter screen; 5. Cleaning assembly; 501. Fixing seat; 502. First rotating rod; 503. First bevel gear; 504. Second bevel gear; 505. Second rotating rod; 506. Cleaning rod; 507. Support plate; 6. Flange; 7. Waist-shaped groove. Detailed Implementation
[0026] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 the utility model.
[0028] Please see Figures 1-6 As shown, this utility model is a carbonization furnace waste heat recovery steam boiler, including a support 1, a boiler assembly 2 is provided on the top of the support 1, a waste heat recovery assembly 3 is provided on the outer surface of the boiler assembly 2, a filter assembly 4 is provided on the outer surface of the waste heat recovery assembly 3, and a cleaning assembly 5 is provided inside the filter assembly 4. The waste heat recovery assembly 3 is used to recover the waste heat of the carbonization furnace to heat the boiler assembly 2, the filter assembly 4 is used to filter the flue gas of the carbonization furnace, and the cleaning assembly 5 is used to clean the filter assembly 4.
[0029] After connecting the waste heat recovery component 3 to the carbonization furnace, the water to be heated is injected into the boiler component 2. The flue gas from the carbonization furnace passes through the filter component 4 and enters the waste heat recovery component 3. The filter component 4 blocks solid particles in the flue gas. When the flue gas passes through the part of the waste heat recovery component 3 located inside the boiler component 2, the heat of the flue gas is transferred to the water in the boiler component 2 through the waste heat recovery component 3, thereby achieving heating. When the filter component 4 needs to be cleaned, the cleaning component 5 is rotated. The cleaning component 5 rotates inside the filter component 4 and can scrape off the solid particles inside the filter component 4.
[0030] This invention connects the waste heat recovery component 3 and the filter component 4. The filter component 4 is located at the air inlet of the waste heat recovery component 3. The flue gas generated by the carbonization furnace passes through the filter component 4 and enters the waste heat recovery component 3. The solid particles carried in the flue gas are blocked by the filter component 4, so that the solid particles remain in the filter component 4, thus avoiding the accumulation of solid particles in the waste heat recovery component 3, which would affect the heat transfer efficiency.
[0031] In one embodiment, the boiler assembly 2 includes a boiler body 201, which is fixedly installed on the top of the support 1. An inlet pipe 202 and an outlet pipe 203 are fixedly connected to the outer surface of the boiler body 201. The inlet pipe 202 is located above the boiler body 201, and the outlet pipe 203 is located below the boiler body 201. A valve 204 is fixedly installed on the outer surface of the outlet pipe 203. The boiler body 201, the inlet pipe 202, and the outlet pipe 203 are interconnected.
[0032] Water is injected into the furnace body 201 through the inlet pipe 202. After the water in the furnace body 201 is heated, the valve 204 on the outer surface of the outlet pipe 203 below the furnace body 201 is opened, so that the outlet pipe 203 is in a conductive state. At this time, the hot water that has been heated in the furnace body 201 can be discharged from the outlet pipe 203.
[0033] In one embodiment, the waste heat recovery assembly 3 includes a main recovery pipe 301, which is fixedly connected to the furnace body 201. An auxiliary recovery pipe 302 is fixedly connected to the outer surface of the main recovery pipe 301. A one-way valve 303 is fixedly installed on the outside of the auxiliary recovery pipe 302. The portion of the main recovery pipe 301 located inside the furnace body 201 is S-shaped. The furnace body 201, the main recovery pipe 301, and the auxiliary recovery pipe 302 are interconnected.
[0034] Flue gas enters the furnace body 201 along the main recovery pipe 301, heating the water inside the furnace body 201. The hot gas generated during the heating process enters the auxiliary recovery pipe 302 and then enters the main recovery pipe 301, where it works together with the flue gas in the main recovery pipe 301 to heat the furnace body 201. A one-way valve 303 installed on the outer surface of the auxiliary recovery pipe 302 ensures that the hot gas can only flow in one direction, preventing the flue gas in the main recovery pipe 301 from entering the auxiliary recovery pipe 302. The S-shaped design of the main recovery pipe 301 increases the time that the flue gas stays in the furnace body 201, allowing it to fully heat the water inside the furnace body 201.
[0035] In one embodiment, the filter assembly 4 includes a filter tube 401, which is fixedly installed at the end of the main recovery pipe 301. A slag discharge pipe 402 is fixedly connected to the outer surface of the filter tube 401, and a filter screen 403 is fixedly connected inside the filter tube 401. The filter tube 401 and the slag discharge pipe 402 communicate with each other.
[0036] The filter pipe 401 is connected to the air inlet end of the main recovery pipe 301. The flue gas from the carbonization furnace enters the main recovery pipe 301 after passing through the filter pipe 401. The filter screen 403 inside the filter pipe 401 blocks the solid particles in the flue gas, and some of the solid particles fall into the slag discharge pipe 402 below the filter pipe 401.
[0037] In one embodiment, the cleaning assembly 5 includes a fixing base 501, which is fixedly connected to the outer surface of the filter tube 401. A first rotating rod 502 is rotatably connected inside the fixing base 501. A first bevel gear 503 is fixedly connected to the end of the first rotating rod 502. A second bevel gear 504 meshes with the outer surface of the first bevel gear 503. A second rotating rod 505 is fixedly connected to the outer surface of the second bevel gear 504. A cleaning rod 506 is fixedly connected to the end of the second rotating rod 505. A support plate 507 is rotatably connected to the outer surface of the second rotating rod 505. The support plate 507 is fixedly connected inside the filter tube 401.
[0038] Rotating the first rotating rod 502 causes the first bevel gear 503 to rotate. The first bevel gear 503 meshes with the second bevel gear 504, causing the second bevel gear 504 and the second rotating rod 505 to rotate. The second rotating rod 505 causes the cleaning rod 506 to rotate on the outer surface of the filter screen 403. The cleaning rod 506 can scrape off the solid particles adhering to the outer surface of the filter screen 403 and make them fall into the slag discharge pipe 402. After opening the slag discharge pipe 402, this part of the debris can be removed.
[0039] In one embodiment, for the main recovery pipe 301, a flange 6 is installed between the main recovery pipe 301 and the filter pipe 401.
[0040] The filter tube 401 is connected to the carbonization furnace via flange 6. The flange 6 facilitates the disassembly and maintenance of the filter tube 401.
[0041] In one embodiment, the outer surface of the support plate 507 is provided with a waist-shaped groove 7.
[0042] The waist-shaped groove 7 can reduce the weight of the support plate 507 and reduce the impact of the support plate 507 on the flow of flue gas, making it easier for the flue gas to flow in the filter tube 401.
[0043] Through the above technical solution, 1. By connecting the waste heat recovery component 3 and the filter component 4, the filter component 4 is located at the air inlet end of the waste heat recovery component 3. The flue gas generated by the carbonization furnace passes through the filter component 4 and enters the waste heat recovery component 3. The solid particles carried in the flue gas are blocked by the filter component 4, so that the solid particles remain in the filter component 4, avoiding the accumulation of solid particles in the waste heat recovery component 3, which would affect the heat transfer efficiency; 2. By connecting the first rotating rod 502 and the second rotating rod 505, rotating the first rotating rod 502 drives the first bevel gear 503 to rotate. The first bevel gear 503 drives the second rotating rod 505 to rotate through the second bevel gear 504. The cleaning rod 506 at the end of the second rotating rod 505 rotates accordingly. During the rotation, the cleaning rod 506 contacts the solid particles adhering to the outer surface of the filter screen 403, scraping the solid particles from the outer surface of the filter screen 403, thereby cleaning the filter screen 403 and preventing the filter screen 403 from clogging.
[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A carbonization furnace waste heat recovery steam boiler, comprising a support (1), characterized in that, A boiler assembly (2) is provided on the top of the support (1). A waste heat recovery assembly (3) is provided on the outer surface of the boiler assembly (2). A filter assembly (4) is provided on the outer surface of the waste heat recovery assembly (3). A cleaning assembly (5) is provided inside the filter assembly (4). The waste heat recovery assembly (3) is used to recover the waste heat of the carbonization furnace to heat the boiler assembly (2). The filter assembly (4) is used to filter the flue gas of the carbonization furnace. The cleaning assembly (5) is used to clean the filter assembly (4).
2. The carbonization furnace waste heat recovery steam boiler according to claim 1, characterized in that, The boiler assembly (2) includes a boiler body (201), which is fixedly installed on the top of the support (1). The outer surface of the boiler body (201) is fixedly connected to an inlet pipe (202) and an outlet pipe (203). The inlet pipe (202) is located above the boiler body (201), and the outlet pipe (203) is located below the boiler body (201). A valve (204) is fixedly installed on the outer surface of the outlet pipe (203). The boiler body (201), the inlet pipe (202), and the outlet pipe (203) are interconnected.
3. The carbonization furnace waste heat recovery steam boiler according to claim 2, characterized in that, The waste heat recovery assembly (3) includes a main recovery pipe (301), which is fixedly connected to the furnace body (201). An auxiliary recovery pipe (302) is fixedly connected to the outer surface of the main recovery pipe (301). A one-way valve (303) is fixedly installed on the outside of the auxiliary recovery pipe (302). The part of the main recovery pipe (301) located inside the furnace body (201) is S-shaped. The furnace body (201), the main recovery pipe (301), and the auxiliary recovery pipe (302) are interconnected.
4. A carbonization furnace waste heat recovery steam boiler according to claim 3, characterized in that, The filter assembly (4) includes a filter tube (401), which is fixedly installed at the end of the main recovery pipe (301). A slag discharge pipe (402) is fixedly connected to the outer surface of the filter tube (401), and a filter screen (403) is fixedly connected inside the filter tube (401). The filter tube (401) and the slag discharge pipe (402) are interconnected.
5. A carbonization furnace waste heat recovery steam boiler according to claim 4, characterized in that, The cleaning assembly (5) includes a fixing seat (501), which is fixedly connected to the outer surface of the filter tube (401). A first rotating rod (502) is rotatably connected inside the fixing seat (501). A first bevel gear (503) is fixedly connected to the end of the first rotating rod (502). A second bevel gear (504) meshes with the outer surface of the first bevel gear (503). A second rotating rod (505) is fixedly connected to the outer surface of the second bevel gear (504). A cleaning rod (506) is fixedly connected to the end of the second rotating rod (505). A support plate (507) is rotatably connected to the outer surface of the second rotating rod (505). The support plate (507) is fixedly connected inside the filter tube (401).
6. A carbonization furnace waste heat recovery steam boiler according to claim 5, characterized in that, A flange (6) is installed between the main recovery pipe (301) and the filter pipe (401).
7. A carbonization furnace waste heat recovery steam boiler according to claim 6, characterized in that, The outer surface of the support plate (507) is provided with a waist-shaped groove (7).