Garbage incinerator decoking treatment system
By designing a coke removal system for waste incinerators, the automated collection and disposal of coke blocks has been achieved, solving the problem of low efficiency in removing coke blocks from the ash hopper in existing technologies, and improving work efficiency and safety.
Patent Information
- Application Number
- CN202422885867.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing waste incinerators have low efficiency in removing coke from the ash hopper during shutdown, which can easily cause blockages, damage the equipment, require a lot of manpower, and affect the working environment.
A coke removal system for a waste incinerator was designed, comprising a collection unit, a hoisting unit, and a transfer unit. The collection vehicle is detachably connected to the ash discharge pipe. The hoisting unit lifts the collection vehicle to the transfer unit, and the coke blocks are automatically flipped and dumped into the ash pit, thus achieving automated coke removal.
It improves the efficiency of coke removal, reduces labor costs, lowers equipment wear and tear, prevents dust, and improves the working environment.
Smart Images
Figure CN223499588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste incineration technology, specifically to a waste incinerator decoking system. Background Technology
[0002] Currently, during waste incinerator shutdowns, the main method for removing coke from the ash hopper is by adding a grid filter inside the hopper. This method is inefficient, prone to untimely removal of coke, and easily causes hopper blockage, damaging the ash discharge valve and fly ash scraper conveyor at the bottom of the hopper. Furthermore, the existing coke removal process requires significant manpower, and even more manpower is needed to move the ash when it becomes blocked, generating substantial dust that negatively impacts the working environment for maintenance personnel. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a waste incinerator decoking system that is compact, highly stable and has a long service life, in order to address the shortcomings of the existing technology.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A waste incinerator coke removal system includes a collection unit, a hoisting unit, and a transfer unit. The collection unit includes a collection vehicle. Both the collection unit and the hoisting unit are located above the boiler room. The transfer unit is located below the boiler room and connected to the slag pit. The collection vehicle is detachably connected to the ash pipe on the side of the incinerator ash hopper to collect coke discharged from the ash hopper. The hoisting unit is used to hoist the collection vehicle between the transfer unit and the ash hopper. The transfer unit is used to transfer the collection vehicle to the slag pit and rotate the collection vehicle to dump the coke into the slag pit.
[0006] As a further improvement of this utility model, a connecting flange for connecting the lower ash pipe is provided on one side of the collection vehicle, and a movable baffle is provided on the other side of the collection vehicle. When the movable baffle is opened, the coke in the collection vehicle is poured into the slag pit.
[0007] As a further improvement of this utility model, the bottom of the collection vehicle is equipped with wheels to enable the collection vehicle to move between the hoisting unit and the incinerator ash hopper.
[0008] As a further improvement of this utility model, the top of the collection vehicle is provided with lifting lugs, and the lifting unit is connected to the lifting lugs to realize the lifting of the collection vehicle.
[0009] As a further improvement of this utility model, the hoisting unit includes a lifting device, which is installed on the top of the boiler room and connected to the lifting lugs to realize the vertical hoisting of the collection vehicle.
[0010] As a further improvement of this utility model, the transfer unit includes an electric railcar and a track. The track is arranged in a horizontal direction and extends from below the lifting device to the slag pit. The electric railcar is used to drive the collection vehicle to move back and forth along the track.
[0011] As a further improvement of this utility model, the electric railcar is equipped with a power unit, which is used to drive the collection car to tilt so that the coke in the collection car can be dumped into the slag pit.
[0012] As a further improvement of this utility model, limit switches are provided at both ends of the track to detect the displacement of the electric railcar.
[0013] As a further improvement of this utility model, the electric railcar is also equipped with a PLC control device. The power unit and limit switch are both connected to the PLC control device to realize automatic control of the operation of the electric railcar and automatic control of the rotation of the collection vehicle.
[0014] As a further improvement of this utility model, the electric railcar is also provided with a fixing buckle to lock the collection vehicle onto the electric railcar.
[0015] Compared with the prior art, the advantages of this utility model are:
[0016] This utility model discloses a waste incinerator coke removal system. By detachably connecting a collection vehicle to the ash discharge pipe on the side of the incinerator ash hopper, the system can collect the coke discharged from the ash hopper. The collection vehicle is then hoisted to a transfer unit using a lifting unit in the boiler room. The transfer unit moves the collection vehicle to the slag pit and rotates it, thus automatically dumping the coke into the slag pit. This improves the efficiency of ash and coke removal and reduces labor costs. It also reduces the wear and tear on ash conveying equipment caused by large coke, avoids damage to various equipment under the ash hopper during ash and coke removal during maintenance, and effectively prevents dust in the work area, improving the working environment for on-site personnel. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structural principle of the waste incinerator coke removal system in a specific embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram of the structural principle of the collection unit in a specific embodiment of this utility model;
[0019] Figure 3 This is a schematic diagram of the structural principle of the hoisting unit in a specific embodiment of this utility model;
[0020] Figure 4This is a schematic diagram of the structural principle of the transfer unit in a specific embodiment of this utility model.
[0021] Legend: 100, Collection unit; 200, Lifting unit; 300, Transfer unit; 400, Incinerator ash hopper; 500, First gate valve; 600, Scraper conveyor; 101, Collection vehicle; 102, Second gate valve; 103, Connecting flange; 104, Movable baffle; 105, Wheel; 106, Lifting lug; 201, Lifting device; 301, Electric railcar; 302, Power unit; 303, Fixed latch; 304, Track; 305, PLC control device; 306, Limit switch; 307, Hydraulic rod; 401, Ash discharge pipe. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.
[0023] In the description of this utility model, it should be understood that the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0025] Example
[0026] like Figure 1As shown, the waste incinerator coke removal system of this utility model includes: a collection unit 100, a hoisting unit 200, and a transfer unit 300. The collection unit 100 includes a collection vehicle 101. Both the collection unit 100 and the hoisting unit 200 are located in the upper part of the boiler room, and the transfer unit 300 is located in the lower part of the boiler room and connected to the ash pit. The collection vehicle 101 is detachably connected to the ash pipe 401 on the side of the incinerator ash hopper 400 to collect the coke discharged from the incinerator ash hopper 400. The hoisting unit 200 is used to hoist the collection vehicle 101 between the transfer unit 300 and the incinerator ash hopper 400. The transfer unit 300 is used to transfer the collection vehicle 101 to the ash pit and drive the collection vehicle 101 to tilt so that the coke is dumped into the ash pit. As can be seen, there is a height difference of more than ten meters between the upper and lower parts of the boiler room, and there is also a height difference of more than ten meters between the ash pipe 401 on the side of the incinerator ash hopper 400 and the slag pit. Therefore, it is necessary to use the hoisting unit 200 to hoist the collection vehicle 101.
[0027] In this embodiment, by detachably connecting the collection vehicle 101 to the ash discharge pipe 401 on the side of the incinerator ash hopper 400, the coke discharged from the incinerator ash hopper 400 can be collected. Then, the collection vehicle 101 is hoisted to the transfer unit 300 using the hoisting unit 200 in the boiler room. The transfer unit 300 then transfers the collection vehicle 101 to the slag pit and rotates the collection vehicle 101, thus realizing the automatic dumping of coke into the slag pit. This improves the efficiency of ash and coke removal and reduces labor costs. It also reduces the wear and tear on the ash conveying equipment caused by large coke, avoids damage to various equipment under the ash hopper during ash and coke removal during maintenance, and effectively prevents dust in the work area, improving the working environment for on-site personnel.
[0028] like Figure 2As shown, a connecting flange 103 for connecting to the ash discharge pipe 401 is provided on one side of the collection vehicle 101, and a movable baffle 104 is provided on the other side of the collection vehicle 101. When the movable baffle 104 is opened, the coke in the collection vehicle 101 is poured into the slag pit. Furthermore, a second slide valve 102 is provided in the ash discharge pipe 401 to control the connection between the ash discharge pipe 401 and the collection vehicle 101. When the incinerator ash hopper 400 is in normal operation, the second slide valve 102 is closed; when the incinerator ash hopper 400 is under maintenance, the second slide valve 102 is opened, and the coke in the incinerator ash hopper 400 can fall into the collection vehicle 101 through the ash discharge pipe 401. This effectively reduces the wear and tear on the ash conveying equipment caused by large coke, avoids excessive dust generation in the working area due to fly ash and coke, and improves the working environment for coke removal personnel. Meanwhile, a slag discharge pipe with a first gate valve 500 is installed at the bottom of the incinerator ash hopper 400. The bottom of the slag discharge pipe is connected to a scraper conveyor 600, which is used to transport the coke discharged from the incinerator ash hopper 400 to the slag pit. When there is a small amount of coke in the incinerator ash hopper 400, the coke can be transported to the scraper conveyor 600 through the slag discharge pipe with the first gate valve 500. When there is a large amount of coke in the incinerator ash hopper 400 and it becomes clogged, it can also be cleared through the ash discharge pipe 401, improving the clearing efficiency.
[0029] In this embodiment, the bottom of the collection vehicle 101 is equipped with wheels 105 to enable the collection vehicle 101 to move between the hoisting unit 200 and the incinerator ash hopper 400. Furthermore, the wheels 105 can be omnidirectional wheels, which are simple in structure and easy to move. After the coke blocks inside the collection vehicle 101 have been collected, the movable baffle 104 at the rear of the collection vehicle 101 is closed and locked, and then the collection vehicle 101 is pushed to the hoisting unit 200 by the wheels 105 at the bottom of the collection vehicle 101.
[0030] In this embodiment, the top of the collection vehicle 101 is provided with a lifting lug 106, and the lifting unit 200 is connected to the lifting lug 106 to realize the lifting of the collection vehicle 101.
[0031] like Figure 3 As shown, the hoisting unit 200 includes a lifting device 201, which is installed on the top of the boiler room. The lifting device 201 is connected to the lifting lug 106 to enable the collection vehicle 101 to be hoisted vertically. It is known that the lifting device 201 is a standard configuration in the boiler room, and its specific structural configuration will not be described in detail here.
[0032] like Figure 4As shown, the transfer unit 300 includes an electric railcar 301 and a track 304. The track 304 is arranged horizontally and extends from below the lifting device 201 to the slag pit. The electric railcar 301 is used to drive the collection vehicle 101 to move back and forth along the track 304. After the lifting device 201 is connected and fixed to the lifting lug 106 and the position of the collection vehicle 101 is adjusted, the collection vehicle 101 is hoisted onto the electric railcar 301. At this time, the movable baffle 104 at the rear of the collection vehicle 101 faces the direction of the slag pit.
[0033] Furthermore, the electric railcar 301 is also equipped with a fixing buckle 303, which is used to lock the wheels 105 so that the collection vehicle 101 is locked and fixed to the base plate of the electric railcar 301.
[0034] like Figure 4 As shown, the electric railcar 301 is equipped with a power unit 302, which drives the collection car 101 to tilt, so that the coke in the collection car 101 can be dumped into the slag pit. Specifically, the power unit 302 can be in the form of a hydraulic push rod, with the output end of the hydraulic push rod connected to the bottom plate of the electric railcar 301, and the collection car 101 fixed to the bottom plate of the electric railcar 301. When the hydraulic push rod pushes the bottom plate of the electric railcar 301 to rise, it can drive the collection car 101 to tilt, so as to dump the coke; after the coke is dumped, the hydraulic push rod pulls the bottom plate of the electric railcar 301 to fall, and the collection car 101 returns to its original position.
[0035] like Figure 4 As shown, limit switches 306 are provided at both ends of the track 304, which are respectively for forward and backward positioning, to determine the movement stroke of the electric track vehicle 301.
[0036] Furthermore, the electric railcar 301 is also equipped with a PLC control device 305. The power unit 302 and limit switches 306 are both connected to the PLC control device 305 to automatically control the operation of the electric railcar 301 and automatically control the tilting of the collection vehicle 101. In this embodiment, a corresponding weight sensing device is also installed on the electric railcar 301, and the PLC control device 305 is connected to the weight sensing device. Specifically, a weighing sensor and an analog input module can be used. The weighing sensor converts the weight signal into a millivolt-level voltage signal proportional to the weight, which is then amplified by a weighing amplifier to a standard industrial process signal that the PLC control device 305 can process, and finally input to the analog input module of the PLC control device 305. The PLC control device 305 can execute corresponding control logic based on the signal from the weighing sensor. When the weight reaches a preset threshold, the PLC control device 305 automatically starts the electric railcar 301 to move towards the slag pit. When the limit switch 306 at the slag pit entrance is triggered, it sends a signal to the PLC control device 305. Upon receiving the signal, the PLC control device 305 stops the electric railcar 301 according to a pre-programmed sequence. When the forward movement reaches the limit position, the limit switch 306 changes from no signal to a signal state, the PLC control device 305 stops the electric railcar 301 and activates the power unit 302 on the electric railcar 301 to push the hydraulic rod 307 to 45°, thus dumping the coke and fly ash from the collection car 101 into the slag pit. When the weight drops to the preset threshold, the hydraulic rod 307 returns to its original position, stopping the hydraulic power system, and the electric railcar 301 returns to its original position. When the backward movement reaches the limit position, the limit switch 306 changes from no signal to a signal state, and the PLC control device 305 stops the electric railcar 301. The collection vehicle 101 is lifted back to the incinerator ash hopper 400 above the boiler room by the lifting device 201 for the next round of coke removal.
[0037] In this embodiment, the electric railcar 301 is powered by a KPX battery and equipped with a 5kW DC traction motor. The electric railcar 301 is equipped with a hydraulic power unit to lift the collection vehicle 101 for dumping fly ash. The electric railcar 301 is started automatically by a PLC and moves forward to the predetermined dumping position at the end of the slag pit entrance. It then touches the reversing limit switch 306, which sends a signal to the PLC control device 305 on the electric railcar 301. This activates the hydraulic pump, which drives the hydraulic rod 307 to rotate the collection vehicle 101, dumping fly ash and coke into the slag pit. Based on the weight feedback signal sent to the PLC control terminal, it is determined that the fly ash dumping is complete. Afterward, the hydraulic rod 307 returns to its original position, and the electric railcar 301 automatically returns to the front limit switch, touching it again. A signal is then transmitted to the PLC control device 305, stopping the electric railcar 301. This coke removal system has a high degree of automation, effectively improving the efficiency of ash and coke removal work and reducing labor costs.
[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A waste incinerator coke removal system, characterized in that, include: The system includes a collection unit (100), a hoisting unit (200), and a transfer unit (300). The collection unit (100) includes a collection vehicle (101). Both the collection unit (100) and the hoisting unit (200) are located in the upper part of the boiler room. The transfer unit (300) is located in the lower part of the boiler room and is connected to the slag pit. The collection vehicle (101) is detachably connected to the ash pipe (401) on the side of the incinerator ash hopper (400) to collect coke blocks discharged from the incinerator ash hopper (400). The hoisting unit (200) is used to hoist the collection vehicle (101) between the transfer unit (300) and the incinerator ash hopper (400). The transfer unit (300) is used to transfer the collection vehicle (101) to the slag pit and drive the collection vehicle (101) to rotate so that the coke blocks are dumped into the slag pit.
2. The waste incinerator coke removal system according to claim 1, characterized in that, The collection vehicle (101) has a connecting flange (103) on one side for connecting the ash pipe (401), and a movable baffle (104) on the other side. When the movable baffle (104) is opened, the coke blocks in the collection vehicle (101) are poured into the slag pit.
3. The waste incinerator coke removal system according to claim 2, characterized in that, The bottom of the collection vehicle (101) is equipped with wheels (105) to enable the collection vehicle (101) to move between the hoisting unit (200) and the incinerator ash hopper (400).
4. The waste incinerator coke removal system according to claim 3, characterized in that, The top of the collection vehicle (101) is provided with a lifting lug (106), and the hoisting unit (200) is connected to the lifting lug (106) to realize the hoisting of the collection vehicle (101).
5. The waste incinerator coke removal system according to any one of claims 1 to 4, characterized in that, The hoisting unit (200) includes a lifting device (201), which is installed on the top of the boiler room. The lifting device (201) is connected to the lifting lug (106) to realize the vertical hoisting of the collection vehicle (101).
6. The waste incinerator coke removal system according to claim 5, characterized in that, The transfer unit (300) includes an electric railcar (301) and a track (304). The track (304) is arranged horizontally and extends from below the lifting device (201) to the slag pit. The electric railcar (301) is used to drive the collection vehicle (101) to move back and forth along the track (304).
7. The waste incinerator coke removal system according to claim 6, characterized in that, The electric railcar (301) is equipped with a power unit (302), which is used to drive the collection car (101) to tilt so that the coke in the collection car (101) can be dumped into the slag pit.
8. The waste incinerator coke removal system according to claim 7, characterized in that, Limit switches (306) are provided at both ends of the track (304) to detect the displacement of the electric railcar (301).
9. The waste incinerator coke removal system according to claim 8, characterized in that, The electric railcar (301) is also equipped with a PLC control device (305). The power unit (302) and the limit switch (306) are both connected to the PLC control device (305) to realize automatic control of the operation of the electric railcar (301) and automatic control of the rotation of the collection vehicle (101).
10. The waste incinerator coke removal system according to any one of claims 6 to 9, characterized in that, The electric railcar (301) is also equipped with a fixing buckle (303) to lock the collection vehicle (101) onto the electric railcar (301).