Ash conveying mechanism below incinerator fire grate
By adopting a chute and inclined chute structure at the bottom of the incinerator grate, combined with a pneumatic ash discharge valve and material sensors, the problems of equipment wear and environmental impact during ash and slag transportation have been solved, thereby improving equipment stability and environmental hygiene.
Patent Information
- Application Number
- CN202520552422.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In the existing incinerator ash and slag conveying process, the scraper conveyor chain wears out quickly and is prone to breakage. The environment under the grate is poor and the temperature is high, which leads to equipment damage and high maintenance costs.
The system employs a chute, ash discharge valve, and inclined chute structure, combined with a pneumatic single-layer ash discharge valve and material sensors, to prevent ash and slag from flying, reduce equipment wear, and improve equipment stability and environmental hygiene.
It extends the service life of the conveying equipment, reduces maintenance costs, improves the hygiene of the area under the grate, and protects the health of workers.
Smart Images
Figure CN223909537U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to incinerator ash conveying equipment technical field especially relates to a kind of incinerator ash conveying mechanism under fire grate. BACKGROUND
[0002] Incinerator will produce a large amount of ash after incineration, and the current ash treatment method is to transport the ash to the slag pit after treatment by slag extractor, but the current method for conveying ash from the incinerator to the slag extractor is to use a scraper conveyor, but the density of the conveyed ash is relatively large, which can easily cause the scraper conveyor chain to wear out, and in enterprise use, the conveying chain and the upper and lower guide rails need to be replaced in about two years, and the scraper conveyor chain can be easily broken when the outlet is blocked with slag; Since the ash hopper under the fire grate is in a pressurized state, the ash discharge valve shaft section and the scraper conveyor running end often have ash emission during operation, which causes poor environment under the fire grate; Since the temperature of the conveyed slag is high, the scraper conveyor bearing and the material sensor can be easily damaged.
[0003] To solve the above problems, the utility model file provides a new type of incinerator ash conveying mechanism under fire grate. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a kind of incinerator ash conveying mechanism under fire grate, improves the service life of conveying equipment, reduces maintenance cost, improves economic efficiency, and simultaneously improves the environmental health under fire grate.
[0005] The utility model provides the following technical scheme:
[0006] A kind of incinerator ash conveying mechanism under fire grate, including the chute connected below incinerator ash hopper, plug valve and ash valve are arranged on the chute, the chute bottom end is connected with chute, the chute is obliquely arranged, the top end position of the chute and chute, the bottom end of the chute is connected with slag extractor.
[0007] Further, the side wall of the chute is also provided with a rapping device.
[0008] Further, a plurality of first inspection holes are uniformly arranged on the upper side of the chute, and a second inspection hole is arranged on the top end face of the chute.
[0009] Further, a material sensor is arranged at the position close to the slag extractor of the chute.
[0010] Further, the inclination angle of the chute is greater than 30 °.
[0011] Further, the ash valve is a pneumatic single-layer ash valve, and a compressed air pipeline is connected to the ash valve.
[0012] Further, the compressed air pipeline is provided with a filter, and the compressed air pipeline is provided with a manual ball valve.
[0013] Further, the chute comprises a "U"-shaped sliding groove and a cover plate, the cover plate is arranged at the opening end of the sliding groove, the first inspection hole is arranged on the cover plate, and the first sealing cover is hinged to the cover plate at a position corresponding to the first inspection hole.
[0014] Further, the top end surface of the chute is provided with a head, the second inspection hole is arranged on the head, and the second sealing cover is hinged to the head at a position corresponding to the second inspection hole.
[0015] In the utility model, the chute is cut off by the gate valve, the normal use of the incinerator is ensured, after the gate valve is opened, the ash falls into the chute from the ash bucket, and then enters the chute through the ash unloading valve, and is transported to the slag remover through the chute, the ash is transported through the chute, the temperature of the ash does not affect the chute, the stability of the conveying structure is ensured, the phenomenon of ash emission is effectively avoided, the ash in the air is prevented from flying, the environmental hygiene under the grate is improved, and the health of workers is protected. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A structure schematic view of the ash and slag conveying mechanism under the grate of the incinerator is provided in the utility model embodiment.
[0017] Figure 2 A side view structure schematic view of the chute in the ash and slag conveying mechanism under the grate of the incinerator is provided in the utility model embodiment.
[0018] Reference signs:
[0019] 1, chute; 2, gate valve; 3, ash unloading valve; 4, chute; 401, sliding groove; 402, cover plate; 5, slag remover; 6, rapping device; 7, first inspection hole; 8, second inspection hole; 9, first sealing cover; 10, second sealing cover; 11, material sensor; 12, compressed air pipeline; 13, filter; 14, manual ball valve; 15, head. DETAILED DESCRIPTION
[0020] The utility model embodiments are described below in combination with the drawings in the utility model embodiments.
[0021] In the description of the embodiments of the utility model, it needs to be explained that, unless there is explicit stipulation and limitation, the terms, "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, also can be inseparable connection, can be direct connection, also can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, also can be indirect communication through intermediate medium. Among them, "fixing" refers to the relative position relationship of each other after connection and does not change. The orientation language mentioned in the embodiments of the utility model, for example, "inner", "outer", "top", "bottom" and the like, is only the direction of reference drawing, therefore, the orientation language used is for better, more clearly illustrating and understanding the embodiments of the utility model, and it is not indicated or implied that the device or element indicated must have a particular orientation, structure and operation, therefore, it can not be understood as the limitation of the embodiments of the utility model.
[0022] In the embodiments of the utility model, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.
[0023] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated object, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist simultaneously and B exists alone. In addition, the character " / " in this paper generally indicates that the front and rear associated objects are a "or" relationship.
[0024] In the description of the embodiments of the utility model, "one embodiment" or "some embodiments" means that one or more embodiments of the utility model include the specific features, structures or characteristics described in connection with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in another some embodiments" and the like appearing in the description are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but are not limited to", unless otherwise specifically emphasized.
[0025] Embodiment 1:
[0026] Referring to Figure 1 As shown in the figure, a kind of incinerator grate ash conveying mechanism, including the chute 1 being connected in the incinerator ash bucket below, chute 1 is equipped with plug valve and ash valve 3, chute 1 bottom end is connected with chute 4, chute 4 is inclined to set, the top end position of chute 1 and chute 4, the bottom end of chute 4 is connected with deslagging machine 5.
[0027] The chute 4 is connected below the slide pipe 1, and the opening and closing of the slide pipe 1 is controlled by means of the plug valve, so as to ensure the normal use of the incinerator. When the ash is discharged, the plug valve is opened, and the ash can enter the slide pipe 1 from the ash bucket, and then enter the chute 4. The unloading valve 3 can cut off the air pressure above and below the slide pipe 1, so as to ensure the normal work of the primary air fan of the incinerator, stabilize the airflow in the incinerator, and prevent the ash from flying in the air during falling. The unloading valve 3 also helps to improve the working environment and protect the health of workers. After the ash enters the chute 4, it slides along the chute 4 to the slag remover 5, and the ash is treated by the slag remover 5. The use of the chute 4 to transport the ash will not affect the stability of the chute 4.
[0028] The chute 4 is also provided with a vibrator 6 on the side wall.
[0029] The chute 4 is knocked by the vibrator 6, which can effectively prevent the ash from adhering to the inner wall of the chute 4, so as to ensure that the ash can fall into the slag remover 5, and avoid the formation of a butt joint in the chute 4, which will cause the chute 4 to be blocked by the ash and affect the normal use of the incinerator.
[0030] A plurality of first inspection holes 7 are uniformly arranged on the upper side of the chute 4, and a second inspection hole 8 is arranged on the top end face of the chute 4.
[0031] The first inspection hole 7 and the second inspection hole 8 are convenient for workers to regularly check the internal condition of the chute 4, and are also convenient for workers to dredge and maintain the inside of the chute 4, so as to ensure the normal use of the chute 4 and prevent the accumulation of ash.
[0032] A material sensor 11 is arranged at the position close to the slag remover of the chute 4.
[0033] The material sensor 11 can automatically monitor the state in the chute 4. If there is ash accumulation, the material sensor 11 will send a blockage signal to the controller, so as to facilitate workers to find problems and timely dredge the chute 4.
[0034] The inclination angle of the chute 4 is 30°. Through experiments, the ash in the chute 4 can slowly slide along the chute 4 to the slag remover 5, and some very fine ash will adhere to the inner wall of the chute 4. The very fine ash will slide down by gently knocking the chute 4 by the vibrator 6.
[0035] The unloading valve 3 is a pneumatic single-layer unloading valve, and a compressed air pipeline 12 is connected to the unloading valve 3.
[0036] The pneumatic single-layer unloading valve is adopted, and the mechanical moving parts and the ash are less rubbed with each other during the ash discharging process, so as to prevent the shell from being worn. In addition, the pneumatic single-layer unloading valve has no power consumption, low working cost, and low production cost of enterprises.
[0037] The compressed air pipeline 12 is provided with a filter 13, and the compressed air pipeline 12 is provided with a manual ball valve 14.
[0038] The filter 13 filters the gas in the compressed air pipeline 12. Due to the problem of the production environment, there is a lot of dust in the air. The filter 13 filters the dust to prevent the dust from entering the pneumatic single-layer ash discharge valve and affecting the normal work of the pneumatic single-layer ash discharge valve.
[0039] The manual ball valve 14 facilitates the worker to control the on-off of the compressed air pipeline 12, and facilitates the maintenance isolation during operation.
[0040] Referring to Figure 2 The chute 4 includes a "U"-shaped chute 401 and a cover plate 402. The cover plate 402 is arranged at the opening end of the chute 401. The first inspection hole 7 is arranged on the cover plate 402. The cover plate 402 is hingedly connected with the first sealing cover 9 at a position corresponding to the first inspection hole 7.
[0041] The chute 401 and the cover plate 402 cooperate to prevent the ash from flying up during the falling process, which affects the working environment of the worker and the health of the worker. In addition, the first sealing cover 9 arranged at the first inspection hole 7 also prevents the ash from flying out from the first inspection hole 7.
[0042] The top end surface of the chute 4 is provided with a head 15. The second inspection hole 8 is arranged on the head 15. The head 15 is hingedly connected with the second sealing cover 10 at a position corresponding to the second inspection hole 8.
[0043] The head 15 improves the sealing performance of the inside of the chute 4, further prevents the ash from running to the external environment, and affects the environment. The second inspection hole 8 is arranged on the head 15 to facilitate the worker to check the inside of the chute 4 and to maintain. The second sealing cover 10 prevents the ash from flying to the external environment from the second inspection hole 8.
[0044] When the incinerator normally burns, the gate valve 2 is closed, so that the spout pipe 1 is closed. When the ash needs to be discharged, the gate valve 2 is opened, and the pneumatic single-layer discharge valve is supplied with air through the compressed air pipeline 12, so that the pneumatic single-layer discharge valve is opened. The ash enters the ash hopper under the action of the primary air in the incinerator, enters the chute 4 through the gate valve 2 and the pneumatic single-layer discharge valve, and then slides into the slag remover 5 along the chute 4 arranged in an inclined manner. At the same time, the vibrator 6 is started to gently knock the chute 4, so that the ash is not easily attached to the inner wall of the chute 4. After being treated by the slag remover 5, the ash is transported to the slag pit for unified collection.
[0045] The worker can open the first sealing cover 9 and the second sealing cover 10 at regular time intervals, check the ash accumulation in the chute 4 through the first inspection hole 7 and the second inspection hole 8, and dredge.
[0046] The material sensor 11 monitors in real time whether the ash in the chute 4 moves or not, if there is no monitoring signal, it indicates that the chute 4 above the material sensor 11 is blocked, so that the worker can find the problem in time and dredge.
[0047] In actual use, the chute 401 and the cover plate 402 are fixed by welding, which improves the overall structural strength of the chute 4 and guarantees the service life of the chute 4.
[0048] A controller is further arranged, which is connected with the material sensor 11 and the electromagnetic valve on the air source of the compressed air pipeline 12, so as to monitor the signal of the material sensor 11 and control the opening and closing of the pneumatic single-layer discharge valve.
[0049] In actual production of the enterprise, the incinerator is divided into drying section, combustion section, burnout section and cooling section, and ash hoppers are arranged below each section, and the ash conveying mechanism is arranged below each ash hopper.
[0050] Embodiment 2:
[0051] The inclination angle of the chute 4 is 35°. Through experiments, the ash in the chute 4 can quickly slide along the chute 4 to the slag remover 5, and the fine ash residue on the inner wall of the chute 4 is very little.
[0052] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application; in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A grate ash conveying mechanism of an incinerator, characterized by comprising: It includes a chute connected below the ash hopper of the incinerator, the chute is equipped with a slide valve and an ash discharge valve, the bottom end of the chute is connected to a chute, the chute is inclined, the top of the chute and the bottom end of the chute are connected to a slag remover.
2. A grate ash conveying mechanism for incinerator according to claim 1, wherein The chute sidewall is also equipped with a vibrator.
3. A grate ash conveying mechanism for incinerator according to claim 1, wherein The upper side of the chute is provided with a plurality of first inspection holes evenly distributed, and the top end face of the chute is provided with a second inspection hole.
4. A grate ash conveying mechanism for incinerator according to claim 1, wherein A material sensor is installed in the chute near the slag remover.
5. A grate ash conveying mechanism for incinerator according to claim 1, wherein The chute has an inclination angle greater than 30°.
6. A grate ash conveying mechanism for incinerator according to claim 1, wherein The ash discharge valve is a pneumatic single-layer ash discharge valve, and a compressed air pipeline is connected to the ash discharge valve.
7. A furnace grate ash removal mechanism for an incinerator according to claim 6, wherein The compressed air pipeline is equipped with a filter and a manual ball valve.
8. A grate ash conveying mechanism for incinerator according to claim 3, wherein The chute includes a "U"-shaped chute and a cover plate. The cover plate is located at the open end of the chute. The first inspection hole is located on the cover plate, and a first sealing cap is hinged to the cover plate at the position corresponding to the first inspection hole.
9. A grate ash conveying mechanism for incinerator according to claim 3, wherein The top end face of the chute is provided with a cap, the second inspection hole is provided on the cap, and a second sealing cover is hinged to the cap at the position corresponding to the second inspection hole.