Spark catcher with self-cleaning device
By using a three-layer graded spark capture structure and a pulse cleaning device, the problem of easy clogging of the spark catcher is solved, achieving efficient and safe spark capture and cleaning, and reducing maintenance requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-10
AI Technical Summary
Existing spark arresters have unstable capture effects; baffle-type arresters are inefficient, while wire mesh arresters are prone to clogging and require regular manual cleaning, increasing maintenance costs and safety risks.
It adopts a three-layer graded capture structure, including a primary barrier plate, a secondary barrier plate and a wire mesh, combined with a pulse cleaning device, which uses compressed gas to clean the dust accumulated on the wire mesh at regular intervals, ensuring the equipment operates stably for a long time.
It improves spark capture efficiency, reduces the risk of clogging, lowers safety risks and maintenance costs, and increases production efficiency.
Smart Images
Figure CN224100317U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of spark catcher, specifically belongs to a spark catcher with self -cleaning device. BACKGROUND
[0002] In the production process of metallurgical, chemical, coal mine and other enterprises, there is the problem of spark mixed in the pipeline flue gas, if the spark flows into the downstream equipment, it is easy to cause equipment damage or safety hazard. Therefore, in order to protect the dust remover, prevent high temperature spark and spark into bag filter or filter cartridge dust collector, avoid burning filter bag or cause fire and other safety accidents, the spark catcher is needed to capture the spark in airflow. At present, the existing spark catcher mainly has two kinds of baffle type and steel wire mesh type, but its capture effect is not stable enough.
[0003] Although the baffle type spark catcher is simple in structure and intuitive in principle, the capture efficiency of small spark and spark is low, although the capture efficiency of the steel wire mesh type spark catcher is high, but after long time operation, dust is easy to accumulate on the steel wire mesh, resulting in steel wire mesh blockage, airflow passage becomes small, thereby affecting the normal operation of the equipment, and manual cleaning is needed regularly, which increases the maintenance cost and safety risk. INVENTION CONTENTS
[0004] The present application aims to provide a spark catcher with self-cleaning device to solve the problems of unstable capture effect and easy blockage of steel wire mesh in the prior art.
[0005] The technical scheme adopted by the utility model is as follows: a spark catcher with self-cleaning device, comprising a shell, a first baffle, a second baffle and a steel wire mesh are installed in the shell from bottom to top, a pulse dust cleaning device is arranged above the steel wire mesh, a dust hopper is installed at the bottom of the shell, an air inlet pipe is installed on one side of the outer wall of the dust hopper, and an air outlet for discharging purified flue gas is formed at the top of the shell.
[0006] Further, the pulse dust cleaning device comprises a gas pocket installed on one side of the shell, the inlet of the gas pocket is connected with the compressed gas source outside, a plurality of pulse valves are installed on the gas pocket, the outlet of each pulse valve is connected with a blowpipe for cleaning the dust accumulated on the steel wire mesh, the lower end of each blowpipe is provided with a blowout port, and the end of each blowpipe away from the pulse valve is fixedly connected with the inner wall of the shell.
[0007] Further, a control box for controlling the opening and closing of the pulse valve is also installed on one side of the outer wall of the shell, and the control box and the pulse valve are electrically connected.
[0008] Further, the blowout port at the lower end of the blowpipe is provided with a plurality of blowout ports, which are equidistantly distributed on the blowpipe.
[0009] Further, the primary baffle plate and the secondary baffle plate are arranged in cross.
[0010] Further, the primary baffle plate and the secondary baffle plate are arranged in cross.
[0011] Further, the other side outer wall of the shell is provided with an inspection hole.
[0012] Further, the outlet of the ash bucket is provided with an ash discharging device for discharging the captured dust and ash.
[0013] Further, the primary baffle plate, the secondary baffle plate and the steel wire mesh are fixedly connected to the inner wall of the shell through the support.
[0014] Further, the air pocket is fixedly connected to the outer wall of the shell through the support.
[0015] As described above, due to the adoption of the above technical solutions, the advantageous effects of the present application are as follows:
[0016] The spark catcher with the self-cleaning device greatly improves the spark catching efficiency by adopting the three-layer grading catching mode, and has the primary baffle plate, the secondary baffle plate and the steel wire mesh three-layer spark catching structure. The pulse ash cleaning device is added to clean the accumulated ash on the steel wire mesh, so that the steel wire mesh can be operated for a long time without the need of the maintenance personnel to enter the steel wire mesh for cleaning at regular time, the production efficiency is improved, and the risk of safe production is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0018] Figure 1 The structural schematic diagram provided for the embodiments of the present application;
[0019] Figure 2 The side view of Figure 1
[0020] The top view of Figure 3 Figure 1 The A-A sectional view of
[0021] Figure 4 The B-B sectional view of Figure 1
[0022] Figure 5 Figure 1
[0023] Figure 6 C-C sectional view of Figure 1
[0024] BRIEF DESCRIPTION OF DRAWINGS: 1, shell; 2, primary barrier plate; 3, secondary barrier plate; 4, steel mesh; 5, support; 6, control box; 7, pulse valve; 8, gas pocket; 9, blowing pipe; 10, support frame; 11, air outlet; 12, manhole; 13, ash bucket; 14, air inlet pipe; 15, ash removal equipment. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.
[0027] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0028] The following will be described in conjunction with Figures 1-6 The present application will be described in detail.
[0029] EMBODIMENT
[0030] By Figures 1-6 It can be known that the spark catcher with self-cleaning device comprises a shell 1 which is made of steel welding and has the characteristics of firmness, durability and good sealing. The inside of the shell 1 is provided with a first blocking plate 2, a second blocking plate 3 and a steel wire mesh 4 from bottom to top. The first blocking plate 2, the second blocking plate 3 and the steel wire mesh 4 are fixedly connected to the inner wall of the shell 1 through supports, so as to ensure that the spark catching function can be stably played in the process of flue gas flowing.
[0031] Moreover, the first blocking plate 2 and the second blocking plate 3 are arranged in a cross manner. The first blocking plate 2 and the second blocking plate 3 are not fully laid and cover 2 / 3 of the cross-sectional area of the shell 1. Such a design can make the spark collide with the first blocking plate 2 and the second blocking plate 3 for multiple times when passing through, so that the kinetic energy is gradually reduced until the spark is extinguished, thereby most of the sparks are caught in the process.
[0032] The steel wire mesh 4 is located above the second blocking plate 3 and is used for catching the tiny sparks which are not caught by the first two blocking plates, so as to further improve the spark catching efficiency and is one of the key components of the whole spark catcher.
[0033] The three-layer grading catching mode of the first blocking plate 2, the second blocking plate 3 and the steel wire mesh 4 greatly improves the spark catching efficiency. The upper part of the steel wire mesh 4 is provided with a pulse dust cleaning device, the bottom of the shell 1 is provided with a dust hopper 13, one side of the outer wall of the dust hopper 13 is provided with an air inlet pipe 14, and the top of the shell 1 is provided with an air outlet 11 for discharging the purified flue gas.
[0034] The flue gas containing sparks enters through the air inlet pipe 14, collides with the inner wall of the steel welding shell 1 upwards, collides with the first blocking plate 2, and part of the sparks are extinguished; then collides with the second blocking plate 3 upwards along the first blocking plate 2, part of the sparks are caught, and then the flue gas collides with the steel wire mesh 4 upwards, and finally the flue gas goes upwards from the air outlet 11 to the rear-end equipment.
[0035] The pulse dust cleaning device comprises a gas pocket 8 which is fixedly connected to the outer wall of the shell 1 through a support frame 10. The inlet of the gas pocket 8 is connected with a compressed gas source outside, a plurality of pulse valves 7 are arranged on the gas pocket 8, the outlet of each pulse valve 7 is connected with a blowing pipe 9 for cleaning the dust on the steel wire mesh 4, the lower end of each blowing pipe 9 is provided with a blowing port, and the end of each blowing pipe 9 away from the pulse valve 7 is fixedly connected with the inner wall of the shell 1. Moreover, the blowing ports at the lower end of the blowing pipe 9 are provided with a plurality of blowing ports which are equidistantly distributed on the blowing pipe 9.
[0036] Meanwhile, the outer wall of the shell 1 is also provided with a control box 6 for controlling the opening and closing of the pulse valve 7, and the control box 6 is electrically connected with the pulse valve 7. The control box 6 can realize the timing control of the opening and closing of the pulse valve 7, so as to complete the timing dust cleaning operation of the steel wire mesh 4.
[0037] By adding the pulse dust cleaning device above the steel wire mesh 4, and controlling the opening and closing of the pulse valve 7 by the control box 6, the compressed gas enters the blowing pipe 9 from the gas pocket 8, and then is sprayed from the blowing port of the blowing pipe 9 to clean the dust on the steel wire mesh, and the compressed gas with lower temperature can also play a role in cooling and extinguishing sparks.
[0038] Therefore, while the spark catcher is running, the pulse dust cleaning device can clean the dust on the steel wire mesh 4 at regular intervals, which can ensure the long-term operation of the steel wire mesh 4, greatly improve the spark catching efficiency, and the maintenance personnel do not need to enter the steel wire mesh 4 for cleaning at regular intervals, which improves the production efficiency of the system and reduces the safety production risk of the system.
[0039] Further, the other side outer wall of the shell 1 is provided with an inspection hole 12, and a maintenance door is installed, which facilitates the periodic inspection, maintenance and cleaning of the internal structure of the shell 1 by the workers, and ensures the stable operation of the equipment.
[0040] Further, the outlet of the ash bucket 13 is provided with an ash unloading device 15. The ash unloading device 15 can timely discharge the captured dust and ash, avoid the blockage of the ash bucket 13, and ensure the normal operation of the equipment.
[0041] Specifically, when the spark catcher with the self-cleaning device is used, the flue gas containing sparks enters the shell 1 from the air inlet pipe 14, first collides with the inner wall of the steel welded shell 1, and part of the sparks are extinguished here. Then the flue gas continues to flow upward and collides with the first blocking plate 2, and part of the sparks are captured and extinguished again. Then the flue gas continues to flow upward along the first blocking plate 2 and collides with the second blocking plate 3, and part of the sparks are captured. After being captured by the first two blocking plates, a small amount of tiny sparks remaining in the flue gas will continue to flow upward and be intercepted and adsorbed by the steel wire mesh 4 when passing through the steel wire mesh 4, and the finally purified flue gas is discharged from the air outlet 11 at the top of the shell 1 and enters the downstream equipment for further treatment.
[0042] When the steel wire mesh 4 runs for a long time, dust will gradually accumulate, which may cause the steel wire mesh 4 to be blocked and the airflow channel to become smaller. At this time, the control box 6 controls the pulse valve 7 to open according to the pre-set time, the compressed gas from the external compressed gas source enters the gas pocket 8, and then is sprayed at high speed from the blowing port at the lower end of the blowing pipe 9 through the pulse valve 7 and the blowing pipe 9, and is blown onto the steel wire mesh 4. The dust adhering to the steel wire mesh 4 is blown off by the strong impact force of the compressed gas, falls into the ash bucket 13 under the action of gravity, and is finally discharged through the ash unloading device 15.
[0043] This pulse dust cleaning process does not require manual cleaning inside the equipment, which can ensure the long-term stable operation of the steel wire mesh 4, greatly improve the production efficiency, and reduce the safety risk. At the same time, the compressed gas with lower temperature can also play a role in cooling and extinguishing sparks during the blowing process, which further enhances the safety of the equipment.
[0044] The preferred embodiments of the present application have been described above with the preferred embodiments, but are not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A spark arrester with self-cleaning device comprising a housing (1), characterized in that: The inside of the shell (1) is provided from bottom to top with a first barrier plate (2), a second barrier plate (3) and a steel wire mesh (4), the steel wire mesh (4) is provided above with a pulse dust cleaning device, the bottom of the shell (1) is provided with a dust hopper (13), one side outer wall of the dust hopper (13) is provided with an air inlet pipe (14), and the top of the shell (1) is provided with an air outlet (11) for discharging purified flue gas.
2. The spark arrestor with self-cleaning device according to claim 1, characterized in that: The pulse dust cleaning device comprises a gas pocket (8) mounted on one side outer wall of the shell (1), the inlet of the gas pocket (8) is connected with a compressed gas source outside, a plurality of pulse valves (7) are mounted on the gas pocket (8), the outlet of each pulse valve (7) is connected with a blowing pipe (9) for cleaning dust accumulated on the steel wire mesh (4), the lower end of each blowing pipe (9) is provided with a blowing port, and the end, away from the pulse valve (7), of each blowing pipe (9) is fixedly connected with the inner wall of the shell (1).
3. The spark arrestor with self-cleaning device according to claim 2, characterized in that: The one side outer wall of the shell (1) is further provided with a control box (6) for controlling the opening and closing of the pulse valve (7), and the control box (6) is electrically connected with the pulse valve (7).
4. The spark arrestor with self-cleaning device according to claim 2, characterized in that: The blowing port at the lower end of the blowing pipe (9) is provided with a plurality of blowing ports, which are equidistantly distributed on the blowing pipe (9).
5. The spark arrestor with self-cleaning device of claim 1, wherein: The first barrier plate (2) and the second barrier plate (3) are arranged in cross.
6. The spark arrestor with self-cleaning device according to claim 5, characterized in that: The first barrier plate (2) and the second barrier plate (3) are not fully laid, and cover 2 / 3 of the cross-sectional area of the shell (1).
7. The spark arrestor with self-cleaning device of claim 1, wherein: The other side outer wall of the shell (1) is provided with an inspection hole (12).
8. The spark arrestor with self-cleaning device of claim 1, wherein: The outlet of the dust hopper (13) is provided with a dust discharging device (15) for discharging captured dust and ash.
9. The spark arrestor with self-cleaning device of claim 1, wherein: The first barrier plate (2), the second barrier plate (3) and the steel wire mesh (4) are fixedly connected with the inner wall of the shell (1) through a support.
10. The spark arrestor with self-cleaning device according to claim 2, characterized in that: The gas pocket (8) is fixedly connected with the outer wall of the shell (1) through a support frame (10).