A smoke exhaust duct convenient to clean

By introducing a servo motor-driven water flushing system and a ring oscillation mechanism into the flue gas duct, the dust on the filter screen is automatically cleaned, solving the problem of filter screen clogging caused by large particles of dust in the kiln flue gas, and improving the efficiency and continuity of flue gas discharge.

CN224480044UActive Publication Date: 2026-07-10CHONG QING HUA SHENG HUAN BAO XIN CAI LIAO YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONG QING HUA SHENG HUAN BAO XIN CAI LIAO YOU XIAN GONG SI
Filing Date
2025-07-09
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The flue gas produced by the kiln contains a large amount of large dust particles, which easily clogs the filter screen, requiring frequent disassembly and cleaning, affecting flue gas emissions and wasting time.

Method used

Design an easy-to-clean exhaust duct that uses a servo motor-driven water pipe and nozzle system to flush the filter screen with water flow and automatically clean the dust on the filter screen by the back-and-forth shaking of the mounting ring and connecting rod.

Benefits of technology

It enables automatic cleaning of the filter screen, reduces manual intervention, improves the continuity and efficiency of flue gas emissions, and reduces cleaning time and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of exhaust flue convenient to clean, it is related to exhaust flue technical field, including exhaust flue, cleaning assembly is arranged on the exhaust flue, slidingly installed between the exhaust flue inner wall has mounting ring, fixedly installed between the mounting ring inner wall has filter screen, the exhaust flue side is provided with water outlet, the water outlet is equipped with storage cylinder, the utility model is rotated by servo motor output end drive water pipeline, makes the nozzle swing, makes water source swing when being sprayed, makes water source evenly spray on filter screen surface, can wash away dust on filter screen surface, when water pipeline is back and forth rotated, will make connecting rod swing back and forth, makes filter screen swing back and forth, can make the impurity dust on filter screen and water source quickly shake and fall in storage cylinder inside, the impurity dust on filter screen is cleaned.
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Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust duct technology, and more specifically, to a smoke exhaust duct that is easy to clean. Background Technology

[0002] A kiln is a furnace used for firing ceramics and sculptures or fusing enamel onto the surface of metal objects. It is generally constructed of brick and stone. During operation, kilns generate a large amount of smoke that needs to be discharged through pipes. For example, patent application CN201320748524.X describes a kiln exhaust channel, which includes a smoke collection pipe installed at the top of the kiln, a smoke storage box connected to the smoke collection pipe, an exhaust pipe, a motor, and an induced draft fan. The smoke storage box has a vertically installed filter screen. One end of the exhaust pipe is connected to the smoke storage box, and the other end of the exhaust pipe is equipped with the induced draft fan. A smoke baffle is installed at one end of the exhaust pipe, positioned between the exhaust pipe and the smoke storage box. The motor shaft is connected to the smoke baffle via a connecting screw. This kiln exhaust duct has the advantages of scientific design, simple structure, wide applicability, and controllable kiln flue gas emissions. The flue gas produced by the kiln contains a lot of large dust particles, which need to be filtered before being discharged. After a period of discharge, the filter screen in the exhaust duct is prone to clogging, which requires the staff to disassemble the filter screen for cleaning. This requires stopping the discharge of flue gas and takes a lot of time. Utility Model Content

[0003] The main purpose of this utility model is to provide an easy-to-clean flue gas duct, which can effectively solve the problem that the flue gas produced by kilns contains a lot of large dust particles. After a period of emission, the filter screen in the flue gas duct is prone to clogging, which requires workers to disassemble the filter screen for cleaning, stop the emission of flue gas, and consume a lot of time.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an easy-to-clean exhaust pipe, including an exhaust pipe, a cleaning component provided on the exhaust pipe, an installation ring slidably installed between the inner walls of the exhaust pipe, a filter screen fixedly installed between the inner walls of the installation ring, a water outlet provided on the side of the exhaust pipe, and a storage cylinder installed at the water outlet.

[0005] Preferably, the inner wall of the exhaust pipe is provided with a sliding groove, and a slider is fixedly installed on the side of the mounting ring, and the slider is slidably installed inside the sliding groove.

[0006] Preferably, the outlet side is provided with an external thread, and the inner wall of the storage cylinder port is provided with an internal thread, and the internal thread and the external thread are engaged and connected.

[0007] Preferably, the cleaning component includes a mounting bracket, a water pipe, and a guide groove. The mounting bracket is fixedly installed on the side of the exhaust pipe, the water pipe is rotatably installed through the middle of the exhaust pipe, and the guide groove is formed on the surface of the mounting ring.

[0008] Preferably, a servo motor is fixedly mounted on the surface of the mounting bracket, the output end of the servo motor is located at one end of the water pipe, and several nozzles are equidistantly arranged on the side of the water pipe.

[0009] Preferably, a positioning frame is installed on the side of the water pipe, and a first rotating shaft is rotatably installed between the inner walls of the two sides of the positioning frame.

[0010] Preferably, a guide block is slidably installed inside the guide groove, and a limit groove is formed on the guide block. A second rotating shaft is rotatably installed between the inner walls on both sides of the limit groove. A connecting rod is fixedly installed on the side of the second rotating shaft, and one end of the connecting rod is disposed on the side of the first rotating shaft.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) Water is supplied to the middle of the water pipe and then sprayed out from the nozzle. The water is sprayed onto the surface of the filter screen to wash away the dust on the filter screen. During the washing, the water pipe is driven to rotate by the output of the servo motor, which makes the nozzle swing. The water is sprayed evenly on the surface of the filter screen, which can wash away the dust on the surface of the filter screen. When the water pipe rotates back and forth, the connecting rod swings back and forth, which makes the mounting ring move back and forth, and the filter screen shakes back and forth. The impurities and dust on the filter screen and the water are shaken and fall into the storage tank quickly. This device can automatically clean the impurities and dust on the filter screen. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a smoke exhaust pipe that is easy to clean according to the present invention;

[0014] Figure 2 This is a side view of the structure of a smoke exhaust duct that is easy to clean according to the present invention;

[0015] Figure 3 This is a schematic diagram of the internal structure of a smoke exhaust pipe that is easy to clean, as described in this utility model.

[0016] Figure 4 This is a right-side view of the internal structure of a smoke exhaust pipe according to the present invention, which is easy to clean.

[0017] Figure 5This is a schematic diagram of a storage cylinder structure for an easy-to-clean exhaust pipe according to the present invention;

[0018] Figure 6 This is an enlarged structural diagram of point A of the easy-to-clean exhaust pipe of this utility model;

[0019] Figure 7 This is an enlarged structural diagram of section B of a smoke exhaust pipe that is easy to clean, according to this utility model.

[0020] In the diagram: 1. Exhaust pipe; 2. Cleaning assembly; 201. Mounting bracket; 202. Servo motor; 203. Water pipe; 204. Nozzle; 205. Positioning bracket; 206. First rotating shaft; 207. Connecting rod; 208. Guide groove; 209. Guide block; 210. Limiting groove; 211. Second rotating shaft; 3. Water outlet; 4. Storage cylinder; 5. Mounting ring; 6. Filter screen; 7. Slide groove; 8. External thread; 9. Internal thread; 10. Slider. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1 , 2 As shown in Figure 3, an easy-to-clean exhaust pipe includes an exhaust pipe 1, a cleaning component 2 on the exhaust pipe 1, an installation ring 5 slidably installed between the inner walls of the exhaust pipe 1, a filter screen 6 fixedly installed between the inner walls of the installation ring 5, a water outlet 3 on the side of the exhaust pipe 1, and a storage cylinder 4 installed at the water outlet 3.

[0023] like Figure 3 , 6 As shown, the inner wall of the exhaust pipe 1 is provided with a sliding groove 7, and a slider 10 is fixedly installed on the side of the mounting ring 5. The slider 10 is slidably installed inside the sliding groove 7. By sliding the slider 10 inside the sliding groove 7, the stability of the mounting ring 5 can be improved when it moves.

[0024] like Figure 3 , 5 As shown, the outlet 3 has an external thread 8 on its side and the storage cylinder 4 has an internal thread 9 on its inner wall. The internal thread 9 and the external thread 8 are engaged to facilitate the installation and disassembly of the storage cylinder 4 by the staff and to clean the impurities inside the storage cylinder 4.

[0025] like Figure 2 , 3 As shown in Figures 4, 6, and 7, the cleaning component 2 includes a mounting bracket 201, a water pipe 203, and a guide groove 208. The mounting bracket 201 is fixedly installed on the side of the exhaust duct 1. The water pipe 203 is rotatably installed through the middle of the exhaust duct 1. The guide groove 208 is formed on the surface of the mounting ring 5. A servo motor 202 is fixedly installed on the surface of the mounting bracket 201. The output end of the servo motor 202 is located at one end of the water pipe 203. A plurality of nozzles 204 are equidistantly arranged on the side of the water pipe 203. [Further details about the nozzles are missing from the original text.] A positioning frame 205 has a first rotating shaft 206 rotatably mounted between its two inner walls. A guide block 209 is slidably mounted inside a guide groove 208. A limit groove 210 is formed on the guide block 209. A second rotating shaft 211 is rotatably mounted between its two inner walls. A connecting rod 207 is fixedly mounted on the side of the second rotating shaft 211. One end of the connecting rod 207 is located on the side of the first rotating shaft 206. Water is supplied to the water source and then sprayed out from the nozzle 204 onto the surface of the filter screen 6. The dust on the filter screen 6 is washed away. During washing, the output of the servo motor 202 drives the water pipe 203 to rotate, causing the nozzle 204 to oscillate. This oscillation of the water source during spraying ensures that the water is evenly sprayed onto the surface of the filter screen 6, effectively washing away the dust. As the water pipe 203 rotates back and forth, a positioning frame 205 is installed on the side of the water pipe 203. A first rotating shaft 206 is rotatably installed between the inner walls of both sides of the positioning frame 205. A guide is slidably installed inside the guide groove 208. A limiting groove 210 is provided on the guide block 209. A second rotating shaft 211 is rotatably installed between the inner walls of the two sides of the limiting groove 210. A connecting rod 207 is fixedly installed on the side of the second rotating shaft 211. One end of the connecting rod 207 is set on the side of the first rotating shaft 206, which will cause the connecting rod 207 to swing back and forth. At this time, the mounting ring 5 can move back and forth, and the filter screen 6 can shake back and forth, so that the impurities, dust and water on the filter screen 6 can be shaken and fall into the storage cylinder 4 quickly. This device can automatically clean the impurities and dust on the filter screen 6.

[0026] The working principle of this easy-to-clean smoke exhaust duct:

[0027] During use, when the flue gas generated by the kiln passes through the exhaust pipe 1, the filter screen 6 filters out impurities and dust from the flue gas. Water is then supplied to the middle of the water pipe 203 and sprayed out from the nozzle 204. The water discharge time should be set according to the flue gas emission specifications. Because the flue gas generated by the kiln contains a lot of dust, the filter screen 6 should be cleaned every half hour by spraying water onto its surface to wash away the dust. At this time, the servo motor 202 drives the water pipe 203 to rotate, causing the nozzle 204 to oscillate. This oscillation ensures the water is evenly sprayed onto the filter screen 6, washing away dust. As the water pipe 203 rotates back and forth, a positioning frame 205 is installed on its side. A first rotating shaft 206 is rotatably mounted between the inner walls of both sides of the positioning frame 205. A guide block 209 is slidably installed inside the guide groove 208. A limiting groove 210 is formed on block 209. A second rotating shaft 211 is rotatably installed between the inner walls of both sides of the limiting groove 210. A connecting rod 207 is fixedly installed on the side of the second rotating shaft 211. One end of the connecting rod 207 is located on the side of the first rotating shaft 206, which causes the connecting rod 207 to swing back and forth. At this time, the mounting ring 5 can move back and forth, causing the filter screen 6 to shake back and forth. This allows the impurities, dust and water on the filter screen 6 to shake and fall quickly into the storage cylinder 4. This device can automatically remove impurities and dust from the filter screen 6. The device performs automatic cleaning, eliminating the need for manual disassembly of the filter screen 6. It should be noted that the filter screen 6 is installed at the connection between the two pipes, facilitating manual disassembly and installation. Furthermore, the diameter of the water pipe 203 is 1:4 of the diameter of the exhaust pipe 1, ensuring that the water pipe 203 does not obstruct the exhaust gas emitted from the exhaust pipe 1. The location and opening size of the storage cylinder 4 can be customized to ensure that cleaning water flows into the storage cylinder 4.

[0028] The above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A smoke exhaust duct that is easy to clean, comprising a smoke exhaust duct (1), characterized in that: A cleaning component (2) is provided on the exhaust pipe (1). An installation ring (5) is slidably installed between the inner walls of the exhaust pipe (1). A filter screen (6) is fixedly installed between the inner walls of the installation ring (5). A water outlet (3) is provided on the side of the exhaust pipe (1). A storage cylinder (4) is installed on the water outlet (3).

2. The easy-to-clean smoke exhaust duct according to claim 1, characterized in that: The inner wall of the exhaust pipe (1) is provided with a groove (7), and a slider (10) is fixedly installed on the side of the mounting ring (5). The slider (10) is slidably installed inside the groove (7).

3. The easy-to-clean smoke exhaust duct according to claim 1, characterized in that: The outlet (3) is provided with an external thread (8) on its side, and the storage cylinder (4) is provided with an internal thread (9) on its inner wall. The internal thread (9) and the external thread (8) are engaged and connected.

4. The easy-to-clean smoke exhaust duct according to claim 1, characterized in that: The cleaning component (2) includes a mounting bracket (201), a water pipe (203), and a guide groove (208). The mounting bracket (201) is fixedly installed on the side of the exhaust pipe (1). The water pipe (203) is rotatably installed through the middle of the exhaust pipe (1). The guide groove (208) is opened on the surface of the mounting ring (5).

5. The easy-to-clean smoke exhaust duct according to claim 4, characterized in that: A servo motor (202) is fixedly mounted on the surface of the mounting bracket (201). The output end of the servo motor (202) is located at one end of the water pipe (203). Several nozzles (204) are equidistantly arranged on the side of the water pipe (203).

6. The easy-to-clean smoke exhaust duct according to claim 5, characterized in that: A positioning frame (205) is installed on the side of the water pipe (203), and a first rotating shaft (206) is rotatably installed between the inner walls on both sides of the positioning frame (205).

7. A smoke exhaust duct that is easy to clean according to claim 6, characterized in that: A guide block (209) is slidably installed inside the guide groove (208). A limit groove (210) is opened on the guide block (209). A second rotating shaft (211) is rotatably installed between the inner walls on both sides of the limit groove (210). A connecting rod (207) is fixedly installed on the side of the second rotating shaft (211). One end of the connecting rod (207) is located on the side of the first rotating shaft (206).