Dust-free discharging structure of combustion furnace
By using activated carbon filters to absorb odors, sedimentation spray heads to expand the water mist contact area, and a hydraulically driven moving frame and scraper to remove dust, the problem of smoke and dust accumulation is solved, achieving efficient dust-free emissions and equipment cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RETAI (JIANGYIN) ENERGY TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
AI Technical Summary
In existing dust-free emission structures for combustion furnaces, soot tends to accumulate, leading to reduced efficiency and shortened service life.
Activated carbon filters are used to adsorb odors and discoloration, sedimentation spray heads are used to expand the contact area between water mist and dust, and a moving frame and scraper driven by a hydraulic cylinder are used to remove dust, achieving multi-layer filtration and cleaning.
It effectively settles and removes smoke and dust, keeps the interior of the emission structure clean, prevents odor accumulation, and extends equipment life.
Smart Images

Figure CN224284677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion furnace technology, specifically a dust-free emission structure for a combustion furnace. Background Technology
[0002] A combustion furnace is a device that generates high temperatures through chemical reactions or electrical principles, primarily used for sample composition analysis or industrial energy production. Based on design differences, it can be categorized into electric arc combustion furnaces (such as carbon-sulfur combustion furnaces) and fuel combustion furnaces (such as direct combustion furnaces). Dust-free emission of a combustion furnace refers to the effective control or filtration of smoke and particulate matter generated during operation through specific technologies and equipment. A dust-free emission structure for a combustion furnace is a device specifically designed to reduce or eliminate dust and smoke generated during combustion. Its main function is to effectively remove pollutants such as particulate matter and harmful gases generated during combustion through various technical means to meet environmental emission standards. Dust-free emission structures for combustion furnaces are widely used in various industrial production fields, especially those industries that easily generate large amounts of smoke and harmful gases, such as metallurgy, chemicals, and ceramics. In these industries, dust-free emission devices protect worker health while helping companies achieve environmentally friendly production.
[0003] As disclosed in application number CN202420799309.0, this utility model discloses a dust-free emission structure for a combustion furnace, including an exhaust pipe and a filter plate. The exhaust pipe is L-shaped, and a reset mechanism is provided inside the exhaust pipe. A support mechanism is connected to the side of the reset mechanism, and a filter plate is provided inside the support mechanism. A discharge port is provided at the lower end of the exhaust pipe, and a guide collection mechanism is provided outside the discharge port. During use, when gas passes through the filter plate, it is filtered. Because the filter plate is inclined, impurities flow downwards along the slope of the filter plate into the collection tank, which stores water to prevent dust from flowing upwards again. At the same time, when the gas flows, it drives the cleaning ball to rotate. The cleaning ball can filter impurities, allowing them to flow out along the discharge hole, and can also vibrate the filter plate to prevent clogging. However, the following shortcomings still exist:
[0004] Smoke and dust accumulate inside the emission structure, reducing its efficiency and shortening its lifespan. Utility Model Content
[0005] The purpose of this invention is to provide a dust-free emission structure for a combustion furnace to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A dust-free emission structure for a combustion furnace includes an emission pipe and a scraper. A connecting rod is provided on the front side of the inner side of the emission pipe, and a hydraulic cylinder is installed on the inner wall of the connecting rod. A movable frame is installed at the rear end of the hydraulic cylinder, and fixed side plates are provided on the left and right sides of the movable frame. The scraper is disposed on the outer wall of the fixed side plates.
[0008] Furthermore, an activated carbon filter is provided on the rear side of the movable frame, and the outer diameter of the activated carbon filter matches the inner diameter of the movable frame.
[0009] Furthermore, a water tank is installed at the upper end of the discharge pipe, and an electric water pump is installed on the outer wall of the water tank.
[0010] Furthermore, the electric water pump is provided with a water delivery pipe at its end, and a water pipe is provided on the front side of the water tank.
[0011] Furthermore, an installation plate is installed at the front end of the discharge pipe, and a settling spray head is installed at the upper end of the inner wall of the discharge pipe.
[0012] Furthermore, an auxiliary pipe is installed at the end of the mounting plate, and a removable filter screen is installed inside the auxiliary pipe.
[0013] Furthermore, an exhaust pipe is provided on the front side of the combustion chamber, and the exhaust pipe is distributed in an L-shape.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model uses a settling spray head to spray water in a mist, increasing the contact area between the water mist and the dust. When dust particles move in the airflow, due to their own inertia, they will collide with the mist droplets, thereby changing their direction of movement and settling down. Larger dust particles will gradually settle under the influence of gravity. The activated carbon filter can adsorb odors and discoloration in the dust when it enters the discharge pipe, preventing odors inside the discharge pipe. The detachable filter can intercept damp small dust particles, achieving dust collection. A hydraulic cylinder can drive the moving frame to move. The outer side and bottom of the moving frame are equipped with scrapers. When moving, the scrapers can contact the inner wall of the discharge pipe, thereby effectively scraping away the dust accumulated inside the discharge pipe and ensuring the cleanliness of the discharge pipe. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of a dust-free emission structure for a combustion furnace according to this utility model.
[0017] Figure 2 This is a rear-view three-dimensional structural diagram of a dust-free emission structure for a combustion furnace according to the present invention.
[0018] Figure 3This is a bottom-view three-dimensional structural diagram of a dust-free emission structure for a combustion furnace according to this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the movable frame of a dust-free emission structure for a combustion furnace according to this utility model.
[0020] In the diagram: 1. Discharge pipe; 2. Water tank; 3. Electric water pump; 4. Water delivery pipe; 5. Water pipe; 6. Mounting plate; 7. Auxiliary pipe; 8. Removable filter screen; 9. Moving frame; 10. Settling spray head; 11. Connecting rod; 12. Hydraulic cylinder; 13. Activated carbon filter screen; 14. Fixed side plate; 15. Scraper blade. Detailed Implementation
[0021] like Figures 1-4 As shown, the present invention provides a dust-free emission structure for a combustion furnace, which includes an emission pipe 1 and a scraper 15. A connecting rod 11 is provided on the front side of the interior of the emission pipe 1, and a hydraulic cylinder 12 is installed on the inner wall of the connecting rod 11. A movable frame 9 is installed on the rear end of the hydraulic cylinder 12, and fixed side plates 14 are provided on the left and right sides of the movable frame 9. The scraper 15 is provided on the outer wall of the fixed side plate 14.
[0022] The hydraulic cylinder 12 can drive the moving frame 9 to move. The outer side and bottom of the moving frame 9 are equipped with scrapers 15. When moving, the scrapers 15 can contact the inner wall of the discharge pipe 1, thereby effectively scraping away the dust accumulated inside the discharge pipe 1 and ensuring the cleanliness of the inside of the discharge pipe 1.
[0023] like Figures 1-4 As shown, an activated carbon filter 13 is provided on the rear side of the movable frame 9, and the outer diameter of the activated carbon filter 13 matches the inner diameter of the movable frame 9. A water tank 2 is provided at the upper end of the discharge pipe 1, and an electric water pump 3 is installed on the outer wall of the water tank 2. A water delivery pipe 4 is provided at the end of the electric water pump 3. A water pipe 5 is provided on the front side of the water tank 2. An installation plate 6 is installed at the front end of the discharge pipe 1, and a sedimentation spray head 10 is installed on the upper end of the inner wall of the discharge pipe 1. An auxiliary pipe 7 is installed at the end of the installation plate 6, and a detachable filter 8 is installed inside the auxiliary pipe 7.
[0024] The settling spray head 10 can spray water in a mist, increasing the contact area between the water mist and the dust. When the dust particles move in the airflow, they will collide with the mist droplets due to their own inertia, thereby changing their direction of movement and settling down. Larger dust particles will gradually settle down under the action of gravity. The activated carbon filter 13 can adsorb the odor and color in the dust when it enters the exhaust pipe 1, preventing odor inside the exhaust pipe 1. The detachable filter 8 can intercept the wetted small dust particles, realizing the collection of dust.
[0025] When this dust-free emission structure for a combustion furnace is in use, firstly according to... Figures 1-4 The flue pipe is connected to the discharge pipe 1. When the flue enters the discharge pipe 1, it first passes through the activated carbon filter 13, which can adsorb the odor and color in the flue, preventing odors inside the discharge pipe 1. Then, the electric water pump 3 is turned on to deliver water to the water tank 2. The water is then transported to the settling spray head 10 through the water pipe 5. The settling spray head 10 can spray water in a mist, increasing the contact area between the water mist and the flue. When the dust particles move in the airflow, due to their own inertia, they will collide with the mist droplets, thereby changing their direction of motion and settling down. Larger dust particles are affected by gravity. The dust will gradually settle and be discharged from the inner wall of the discharge pipe 1. At this time, the hydraulic cylinder 12 is activated to move the moving frame 9. The outer side and bottom of the moving frame 9 are equipped with scrapers 15. When moving, the scrapers 15 can contact the inner wall of the discharge pipe 1, thereby effectively scraping off the dust accumulated inside the discharge pipe 1 and ensuring the cleanliness of the inside of the discharge pipe 1. Finally, the settled dust will be discharged from the auxiliary pipe 7. The auxiliary pipe 7 contains a detachable filter screen 8, which can intercept the wet dust particles and realize the collection of dust, thereby achieving dust-free discharge.
Claims
1. A dust-free exhaust structure of a combustion furnace, characterized by comprising: The device includes a discharge pipe (1) and a scraper (15). A connecting rod (11) is provided on the front side of the discharge pipe (1), and a hydraulic cylinder (12) is installed on the inner wall of the connecting rod (11). A movable frame (9) is installed at the rear end of the hydraulic cylinder (12), and fixed side plates (14) are provided on the left and right sides of the movable frame (9). The scraper (15) is located on the outer wall of the fixed side plate (14).
2. A dust-free emission structure of a combustion furnace according to claim 1, characterized by An activated carbon filter (13) is provided on the rear side of the movable frame (9), and the outer diameter of the activated carbon filter (13) matches the inner diameter of the movable frame (9).
3. The dust-free emission structure for a combustion furnace according to claim 1, characterized in that, The upper end of the discharge pipe (1) is provided with a water tank (2), and an electric water pump (3) is installed on the outer wall of the water tank (2).
4. The dust-free emission structure for a combustion furnace according to claim 3, characterized in that, The electric water pump (3) is provided with a water delivery pipe (4) at its end, and a water pipe (5) is provided on the front side of the water tank (2).
5. The dust-free emission structure for a combustion furnace according to claim 1, characterized in that, The front end of the discharge pipe (1) is equipped with an installation plate (6), and the upper end of the inner wall of the discharge pipe (1) is equipped with a settling spray head (10).
6. The dust-free emission structure for a combustion furnace according to claim 5, characterized in that, An auxiliary pipe (7) is installed at the end of the mounting plate (6), and a removable filter screen (8) is installed inside the auxiliary pipe (7).