Soot blowing structure of garbage incinerator
By setting up a soot blowing device with bent nozzles on the smoke exhaust passage of the waste incinerator, the problem of low smoke exhaust efficiency caused by ash deposition is solved, which extends the equipment life and reduces operating costs.
Patent Information
- Application Number
- CN202323174818.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-23
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-11-23
AI Technical Summary
After the garbage incinerator is running for a long time, ash is easily deposited on the wall of the smoke exhaust port, resulting in low smoke exhaust efficiency and reduced operating efficiency of the furnace body, and lack of effective solutions.
Design a soot blowing structure of a waste incinerator, including setting up a soot blowing device on the smoke exhaust passage, the nozzle is bent in the direction of the smoke gas, with an angle of 30-60 degrees, and the nozzle extends to the bottom of the side of the smoke exhaust passage for agitation and discharge deposited ash to prevent dust from deposition.
It effectively extends the service life of the furnace body, reduces operating costs, and improves operating safety and maintenance convenience.
Smart Images
Figure CN222363891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of garbage incinerators, in particular to a soot blowing structure of a garbage incinerator. Background Art
[0002] Waste disposal has become a critical issue in urban development. While the composition of municipal solid waste (MSW) fluctuates significantly due to seasonal and regional factors, its overall composition is relatively stable, primarily consisting of rubber, paper, plastic, food waste, and biomass waste. These wastes have a low average moisture content and a high calorific value. Therefore, incineration is a suitable method for treating MSW.
[0003] After a long period of operation, ash is easily deposited on the walls of the smoke exhaust port of a garbage incinerator, resulting in low smoke exhaust efficiency of the furnace body, which further leads to lower and lower operating efficiency of the garbage incinerator. There is currently no good solution. Utility Model Content
[0004] The purpose of this utility model is to address the deficiencies in the prior art described above and to provide a soot blowing structure for a waste incinerator, which has the advantages of simple and reliable structure, safe and reliable operation, easy maintenance, low energy consumption, and low operating costs.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a soot blowing structure of a waste incinerator, comprising a furnace body and a smoke exhaust channel connected to the upper part of the furnace body, at least one soot blowing device is arranged on the smoke exhaust channel, the nozzle of the soot blowing device extends into the smoke exhaust channel, and the nozzle is provided with a bending portion along the direction of the smoke.
[0006] The angle between the air outlet of the bent portion and the smoke exhaust channel is 30-60 degrees.
[0007] Preferably, the angle between the air outlet of the bent portion and the smoke exhaust channel is 40 degrees.
[0008] A soot blowing device is provided at the end of the smoke exhaust channel, and a nozzle of the soot blowing device extends into the bottom of the side of the smoke exhaust channel to blow up and discharge the soot at the bottom to prevent dust deposition.
[0009] The sootblowing device includes a pulse pot, a nozzle and a connecting mechanism. The pulse pot is connected to the nozzle through an elbow. The nozzle is connected to the inner cavity of the smoke exhaust channel through the connecting mechanism. A bending portion is provided at the nozzle port.
[0010] The pulse tank is fixed on the side wall of the smoke exhaust channel through a fixing frame.
[0011] The connecting mechanism is composed of a flange sleeve fixed on the side wall of the smoke exhaust channel and a matching flange matched with the flange sleeve. After the nozzle is inserted into the flange sleeve, it is fixed by tightening the screws on the matching flange.
[0012] A heat-insulating pad is provided between the outer side wall of the nozzle and the inner side wall of the flange sleeve.
[0013] Reinforcement channel steel is arranged between the fixing frame and the outer wall of the smoke exhaust channel.
[0014] The pulse tank is provided with a mixed gas inlet, which is connected to the air intake pipe via a flange.
[0015] The nozzle is 100-200mm away from the bottom of the flue to blow up the ash at the bottom.
[0016] In general, compared with the prior art, the present invention has the following beneficial effects: simple structure, low operating cost, and can effectively extend the service life of the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 This is a structural schematic diagram of a soot blowing structure of a garbage incinerator according to the present utility model;
[0019] Figure 2 This is a structural schematic diagram of an energy-saving device for a garbage incinerator according to the present utility model. DETAILED DESCRIPTION
[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] A soot blowing structure of a garbage incinerator, such as Figure 1 As shown, it includes a furnace body 7 and a smoke exhaust channel 12 connected to the upper part of the furnace body 7. At least one soot blowing device 14 is provided on the smoke exhaust channel 12. The nozzle of the soot blowing device 14 extends into the smoke exhaust channel 12, and the nozzle is provided with a bent portion 32 along the direction of the flue gas, so that the soot-blowing mixed airflow does not blow directly towards the superheater 13 in the smoke exhaust channel 12 for a long time, thereby avoiding damage to the pipe wall. At the same time, the high-speed airflow cuts into the inner wall of the smoke exhaust channel 12 at a certain angle, so that the airflow in the smoke exhaust channel 12 is stirred along the inside of the channel, and the ash deposited on the inner wall of the smoke exhaust channel 12 is stirred and discharged, which can effectively avoid the deposition of ash. Among them, the angle between the air outlet of the bent portion 32 and the smoke exhaust channel 12 is 30-60 degrees. Preferably, the angle between the air outlet of the bent portion 32 and the smoke exhaust channel 12 is 40 degrees.
[0023] The soot blowing device 14, such as Figure 2 As shown, it includes a pulse tank 21, a nozzle 27, a fixing frame 24, and a connecting mechanism. The pulse tank 21 is connected to the nozzle 27 via an elbow 31, so that the pulse tank 21 can be installed on the side wall of the smoke exhaust channel 12, saving installation space. The pulse tank 21 is fixed to the side wall of the smoke exhaust channel 12 via the fixing frame 24. The nozzle 27 is connected to the inner cavity of the smoke exhaust channel 12 via the connecting mechanism, and a bend 32 is provided at the end of the nozzle 27. The connecting mechanism consists of a flange sleeve 29 fixed to the side wall of the smoke exhaust channel 12 and a matching flange 30 that cooperates with the flange sleeve 29. After the nozzle 27 is inserted into the flange sleeve 29, it is fixed by tightening the screws on the matching flange 30. An insulation pad 28 is provided between the outer wall of the nozzle 27 and the inner wall of the flange sleeve 29. A reinforcing channel steel 25 is provided between the fixing frame 24 and the outer wall of the smoke exhaust channel 12 to increase the fixing strength of the fixing frame. The pulse tank 1 is provided with a mixed gas inlet, which is connected to the air inlet pipe 22 via a flange 23. The nozzle is 150 mm away from the bottom of the flue to blow up the ash at the bottom.
[0024] A soot blower 14 is provided at the end of the smoke exhaust channel 12. The nozzle of the soot blower 4 extends into the bottom of the side of the smoke exhaust channel 12 to blow up the soot at the bottom and prevent dust from depositing.
[0025] The utility model provides a bending portion 32 with an angle of 40 degrees between the nozzle 27 and the smoke exhaust channel 12, so that the high-speed airflow of the mixed gas is stirred along the inside of the smoke exhaust channel 12 with a certain angle, and the ash deposited on the inner wall of the smoke exhaust channel 12 is stirred and discharged, which can effectively avoid the deposition of ash and the defects such as rupture of the smoke exhaust channel 12 due to soot blowing, thereby extending the service life and maintenance cost.
[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A soot blowing structure for a waste incinerator, characterized in that: It comprises a furnace body and a smoke exhaust channel connected to the upper part of the furnace body. At least one soot blower is arranged on the smoke exhaust channel. The nozzle of the soot blower extends into the smoke exhaust channel, and the nozzle is provided with a bending part along the smoke direction.
2. A soot blowing structure for a waste incinerator according to claim 1, characterized in that: The angle between the air outlet of the bent portion and the smoke exhaust channel is 30-60 degrees.
3. A soot blowing structure for a waste incinerator according to claim 2, characterized in that: The angle between the air outlet of the bent portion and the smoke exhaust channel is 40 degrees.
4. The soot blowing structure of a waste incinerator according to claim 1, characterized in that: The sootblowing device comprises a pulse pot, a nozzle and a connecting mechanism. The pulse pot is connected to the nozzle through an elbow. The nozzle is connected to the inner cavity of the smoke exhaust channel through the connecting mechanism. A bending portion is arranged at the nozzle port.
5. A soot blowing structure for a waste incinerator according to claim 4, characterized in that: The pulse tank is fixed on the side wall of the smoke exhaust channel through a fixing frame.
6. A soot blowing structure for a waste incinerator according to claim 4, characterized in that: The connection mechanism is composed of a flange sleeve fixed on the side wall of the smoke exhaust channel and a matching flange matched with the flange sleeve. After the nozzle is inserted into the flange sleeve, it is fixed by tightening the screws on the matching flange.
7. The soot blowing structure of a waste incinerator according to claim 5, characterized in that: A heat-insulating pad is arranged between the outer wall of the nozzle and the inner wall of the flange sleeve.
8. The soot blowing structure of a waste incinerator according to claim 5, characterized in that: A reinforcement channel steel is arranged between the fixing frame and the outer wall of the smoke exhaust passage.
9. The soot blowing structure of a waste incinerator according to claim 4, characterized in that: The pulse tank is provided with a mixed gas inlet, and the mixed gas inlet is connected to the intake pipe through a flange.
10. The soot blowing structure of a waste incinerator according to claim 4, characterized in that: A soot blowing device is arranged at the end of the smoke exhaust channel, and a nozzle of the soot blowing device extends into the bottom of the side of the smoke exhaust channel, and the distance between the nozzle and the bottom surface of the flue is 100-200 mm.