Boiler without generating solid waste

Abstract

The invention discloses a boiler without generation of solid waste, and relates to the field of boilers, the boiler without generation of solid waste comprises a combustion chamber, an electric melting chamber and an unblocking assembly, the combustion chamber and the electric melting chamber are vertically connected through a main runner, fuel is primarily combusted through the combustion chamber, and solid slag, fly ash and other substances can be generated; at the moment, solid slag can directly fall into the electric melting chamber under the influence of gravity, fly ash can gradually rise until flowing into the dust remover, the unblocking assembly is arranged at the joint of the combustion chamber and the electric melting chamber and comprises a flow dividing piece and a dredging piece, standby channel conveying in the blocked state is achieved through the flow dividing piece, and the unblocking piece is unblocked; the situation that due to blockage, materials are continuously accumulated, blockage is serious finally, and even internal structures of a combustion chamber and an electric melting chamber are damaged is relieved, vibration of the conveying channel after the flow dividing piece reaches a bearing threshold value is achieved through the dredging piece, conveying smoothness is guaranteed, and automatic dredging can be conducted in time when blockage occurs.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, in particular to a boiler without generating solid waste. Background Art

[0002] Slag and fly ash are byproducts of coal combustion with huge emissions. With the rapid development of my country's coal-fired power industry, my country's fly ash has experienced a rapid growth stage from 2001 to 2010 and a steady growth stage from 2011 to 2022 in the past 20 years. In 2022, the emission of fly ash reached 650 million tons. According to the new development concept of innovation, coordination, green, openness and sharing, we will continue to promote the reduction of solid waste at the source and resource utilization, and realize the comprehensive resource utilization of fly ash from coal-fired power plants, which is of great significance to building a "zero-waste power plant" and helping the construction of a "zero-waste city". According to statistics, the comprehensive utilization rate of fly ash in my country has reached about 75%, and the ways of resource reuse include the preparation of wall materials, cement concrete, filling materials, etc., mainly concentrated in the fields of building materials and engineering.

[0003] Therefore, a boiler device is needed that can achieve high recovery rate and reduce material blockage. Summary of the invention

[0004] The present invention is proposed in view of the above-mentioned problems existing in the boiler without generating solid waste.

[0005] Therefore, the problem to be solved by the present invention is how to achieve a high energy recovery rate and prevent material blockage.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a boiler that does not generate solid waste, comprising a combustion chamber; an electric melting chamber, wherein the combustion chamber and the electric melting chamber are vertically connected via a main channel; a clearing component, arranged at the connection between the combustion chamber and the electric melting chamber, comprising a diverter and a clearing component; the diverter is used to realize backup channel transportation in a blocked state; the clearing component is used to realize vibration of the transportation channel after the diverter reaches the load threshold.

[0007] As a preferred embodiment of the boiler without generating solid wastes described in the present invention, the temperature inside the combustion chamber should be greater than the ignition point of the fuel but less than the melting point of the bottom ash generated after combustion; after the bottom ash enters the electric melting chamber, it is heated by high-voltage electrodes until the bottom ash is in a molten state.

[0008] As a preferred solution of the boiler without solid waste generation described in the present invention, wherein: the combustion chamber is connected with the dust collector and the ash bin, and the output port of the ash bin is aligned with the first conveyor; one side of the electric melting chamber is connected with the first conveyor, and the other side of the electric melting chamber is connected with the second conveyor, and a silo is arranged above the second conveyor; a liquid slag outlet is arranged on the electric melting chamber, and the liquid slag outlet is connected with the injector and the former in sequence.

[0009] As a preferred solution of the boiler without solid waste generation described in the present invention, the diverter includes a feed inlet connected to the main channel and an active cavity, the active cavity is connected to the main channel through a pipeline, and there is an angle at the connection between the feed inlet and the active cavity.

[0010] As a preferred solution of the boiler without solid waste generation described in the present invention, wherein: a loading platform connected to the active cavity via a first spring is provided in the active cavity, and a plurality of discharge holes are provided on the loading platform; the discharge speed of the discharge holes is lower than the feed speed of the feed inlet.

[0011] As a preferred solution of the boiler without solid waste generation described in the present invention, the loading platform is provided with movable teeth, trigger piles and abutment piles, the movable teeth can only rotate in one direction, and the end of the trigger pile is wedge-shaped.

[0012] As a preferred solution of the boiler without solid waste generation described in the present invention, the inner wall of the movable cavity is provided with a one-way rack connected to the movable cavity through a second spring, and the one-way rack is provided with a wedge pile abutting against the trigger pile.

[0013] As a preferred solution of the boiler without solid waste generation described in the present invention, the dredging member includes a vibration pile arranged in the active cavity, the vibration pile is abutted against the abutment pile, and is connected to the active cavity through a third spring.

[0014] As a preferred solution of the boiler without solid waste generation described in the present invention, the vibration pile and the wedge pile are in the same horizontal plane, the abutment pile first abuts against the vibration pile so that the vibration pile is compressed; then the trigger pile abuts against the wedge pile.

[0015] As a preferred solution of the boiler without generating solid wastes described in the present invention, the vibration piles are arranged in a ring shape in the active cavity.

[0016] The beneficial effects of the present invention are as follows: through the coordination of various components, we can utilize the heat of high-temperature slag on the one hand, and transform waste into rock wool on the other hand, saving energy consumption while preparing by-products for export, thereby increasing the income of the power plant;

[0017] At the same time, it can also ensure the smoothness of material transportation inside the boiler and automatically clear the blockage in time when it occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 Scenario diagram for a boiler that generates no solid waste.

[0020] Figure 2 This is a structural diagram of a boiler that does not generate solid waste.

[0021] Figure 3 A cross-sectional view of a boiler that produces no solid waste.

[0022] Figure 4 Exploded view of a boiler that produces no solid waste.

[0023] Figure 5 for Figure 4 Enlarged view of the middle clearing component.

[0024] Figure 6 This is a structural diagram of the loading platform of a boiler that does not generate solid waste.

[0025] Figure 7 A cross-sectional view of the main flow channel of a boiler without solid waste generation. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and provides a boiler without solid waste generation. The boiler without solid waste generation includes a combustion chamber 100, an electric melting chamber 200 and a clearing assembly 300. The combustion chamber 100 and the electric melting chamber 200 are vertically connected through a main flow channel T. The fuel is initially burned through the combustion chamber 100, and solid slag and fly ash and other substances are generated at this time. At this time, the solid slag will fall directly into the electric melting chamber 200 under the influence of gravity, and the fly ash will gradually rise until it flows into the dust collector 101;

[0031] The vertical connection has the following beneficial effects:

[0032] 1. It can make more effective use of space and reduce floor space;

[0033] 2. At the same time, the vertical structure is conducive to the use of waste heat from the bottom slag, because the bottom slag can directly fall into the electric melting chamber by gravity, reducing additional transportation energy consumption;

[0034] 3. Since the bottom slag can directly fall into the electric melting chamber 200, the need for additional conveying equipment is reduced, thereby reducing equipment costs and maintenance costs;

[0035] 4. In the vertical structure, the bottom slag can fall directly into the electrofusion chamber 200 by gravity, which reduces the power consumption required for additional bottom slag transportation. At the same time, gravity also helps to evenly distribute the bottom slag in the electrofusion chamber 200.

[0036] Specifically, the clearing assembly 300 is disposed at the connection between the combustion chamber 100 and the electric melting chamber 200 , and includes a diverter 301 and a clearing member 302 .

[0037] Preferably, the backup channel transportation in the blocked state is realized by the diverter 301, which alleviates the continuous accumulation of materials caused by the blockage, which will eventually make the blockage more serious and even cause damage to the internal structure of the combustion chamber 100 and the electrofusion chamber 200.

[0038] Preferably, the conveying channel is vibrated by the clearing piece 302 after the diverter piece 301 reaches the load threshold.

[0039] When in use, the combustion chamber 100 starts to burn materials, and the bottom slag produced falls into the electric melting chamber 200 due to gravity. When blockage occurs, the bottom slag accumulates and gradually falls into the diverter 301. As the diverter 301 carries more and more bottom slag, it will drive the clearing piece 302 to vibrate the main channel T, and then the blockage will be slowly cleared.

[0040] Example 2

[0041] Reference Figures 2 to 7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, the temperature inside the combustion chamber 100 should be greater than the ignition point of the fuel but less than the melting point of the bottom ash produced after combustion; after the bottom ash enters the electric melting chamber 200, it is heated by high-voltage electrodes until the bottom ash is in a molten state.

[0043] Preferably, the combustion chamber 100 is connected with the dust collector 101 and the ash bin 102, and the output port of the ash bin 102 is aligned with the first conveyor 103; one side of the electrofusion chamber 200 is connected with the first conveyor 103, and the other side of the electrofusion chamber 200 is connected with the second conveyor 201, and a silo 202 is arranged above the second conveyor 201; a liquid slag outlet 203 is arranged on the electrofusion chamber 200, and the liquid slag outlet 203 is connected with the injector 204 and the former 205 in sequence;

[0044] The first conveyor 103 is used to convey boiler fly ash, the second conveyor 201 is used to convey auxiliary materials, and the dust collector 101 can adopt the MCJC-5500 model.

[0045] Preferably, the flow divider 301 includes a feed inlet 301a connected to the main channel T and an active cavity 301b. The active cavity 301b is connected to the main channel T through a pipe 301c. An angle exists at the connection between the feed inlet 301a and the active cavity 301b.

[0046] Preferably, a loading platform 301b-2 connected to the active cavity 301b through a first spring 301b-1 is provided in the active cavity 301b, and a plurality of discharge holes W are provided on the loading platform 301b-2;

[0047] The discharge speed of the discharge hole W is lower than the feed speed of the feed inlet 301a.

[0048] Preferably, the loading platform 301b-2 is provided with movable teeth 301b-3, trigger piles 301b-4 and abutment piles 301b-5, the movable teeth 301b-3 can only rotate in one direction, and the end of the trigger pile 301b-4 is wedge-shaped.

[0049] Preferably, the inner wall of the active cavity 301b is provided with a one-way rack 301b-7 connected to the active cavity 301b through a second spring 301b-6, and the one-way rack 301b-7 is provided with a wedge-shaped pile 301b-8 that abuts and cooperates with the trigger pile 301b-4.

[0050] Preferably, the clearing member 302 includes a vibration pile 302a disposed in the active cavity 301b, the vibration pile 302a abuts against the abutment pile 301b-5, and is connected to the active cavity 301b via a third spring 302b.

[0051] Preferably, the vibration pile 302a and the wedge pile 301b-8 are in the same horizontal plane, and the abutment pile 301b-5 first abuts against the vibration pile 302a, so that the vibration pile 302a is compressed;

[0052] Then the trigger post 301b-4 will abut against the wedge-shaped post 301b-8.

[0053] Preferably, the vibration pile 302a is arranged in an annular shape in the activity chamber 301b.

[0054] During use, when a blockage occurs, the bottom slag will first accumulate continuously, and the height of the accumulation will continue to rise until the height of the blocked bottom slag reaches the feed inlet 301a, and then it will gradually enter the movable cavity 301b from the feed inlet 301a, and finally fall onto the loading platform 301b-2. As the bottom slag continues to fall onto the loading platform 301b-2, the weight carried by the loading platform 301b-2 is also increasing, so it will continuously compress the first spring 301b-1 to descend. During the descent of the loading platform 301b-2, the meshing between the movable tooth 301b-3 and the one-way rack 301b-7 prevents the loading platform 301b-2 from being rebounded by the first spring 301b-1.

[0055] When the loading platform 301b-2 is lowered to make the abutting pile 301b-5 abut against the vibration pile 302a, the vibration pile 302a is compressed. When the vibration pile 302a is compressed, the trigger pile 301b-4 will just abut against the wedge pile 301b-8, so that the one-way rack 301b-7 is separated from the movable tooth 301b-3. At this time, the first spring 301b-1 will rebound immediately because it has been compressed to the limit. There is still weight on 01b-2, but at this time the rebound force of the first spring 301b-1 is greater than the gravity brought by the loading platform 301b-2, so the first spring 301b-1 will rebound to a certain height, and this height is exactly the distance where the abutment force between the abutment pile 301b-5 and the vibration pile 302a disappears. Therefore, under the action of the third spring 302b, the vibration pile 302a will vibrate and dredge the main channel T, repeat the above steps, continuously vibrate the main channel T, and finally achieve dredging;

[0056] It is worth noting that since a damper F is provided between the wedge pile 301b-8 and the movable chamber 301b, and the damper F is set so that the resistance during rebound is much greater than the resistance during compression, the rebound speed of the one-way rack 301b-7 is much lower than the rebound rising speed of the loading platform 301b-2, so the rising process of the loading platform 301b-2 will not be constrained by the one-way rack 301b-7;

[0057] After the dredging is completed, since the main channel T is flowing normally and the discharge hole W is also continuously discharging material, the bottom slag on the loading platform 301b-2 will eventually be emptied, so that the loading platform 301b-2 returns to the initial position.

[0058] It should be noted that 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A boiler without solid waste generation, characterized in that: include, Combustion chamber (100); An electric melting chamber (200), wherein the combustion chamber (100) is vertically connected to the electric melting chamber (200) via a main flow channel (T); A clearing component (300) is arranged at the connection between the combustion chamber (100) and the electric melting chamber (200), and comprises a flow divider (301) and a clearing component (302); The backup channel delivery in a blocked state is realized by the diverter (301); The dredging member (302) is used to realize vibration of the conveying channel after the diverter member (301) reaches a load threshold.

2. The boiler without solid waste generation according to claim 1, characterized in that: The internal temperature of the combustion chamber (100) should be greater than the ignition point of the fuel but less than the melting point of the bottom ash produced after combustion; After the bottom ash enters the electric melting chamber (200), it is heated by high-voltage electrodes until the bottom ash is in a molten state.

3. The boiler without solid waste generation according to claim 2, characterized in that: The combustion chamber (100) is connected to the dust collector (101) and the ash bin (102), and the output port of the ash bin (102) is aligned with the first conveyor (103); One side of the electric melting chamber (200) is connected to the first conveyor (103), and the other side of the electric melting chamber (200) is connected to the second conveyor (201), and a material bin (202) is arranged above the second conveyor (201); The electrofusion chamber (200) is provided with a liquid slag outlet (203), and the liquid slag outlet (203) is sequentially connected to the injector (204) and the former (205).

4. The boiler without solid waste generation according to claim 3, characterized in that: The flow divider (301) comprises a feed inlet (301a) and an active cavity (301b) connected to the main channel (T); the active cavity (301b) is connected to the main channel (T) via a pipe (301c); and an angle exists at the connection between the feed inlet (301a) and the active cavity (301b).

5. The boiler without solid waste generation according to claim 4, characterized in that: A loading platform (301b-2) connected to the active cavity (301b) via a first spring (301b-1) is provided in the active cavity (301b), and a plurality of discharge holes (W) are provided on the loading platform (301b-2); The discharge speed of the discharge hole (W) is lower than the feed speed of the feed inlet (301a).

6. The boiler without solid waste generation according to claim 5, characterized in that: The loading platform (301b-2) is provided with movable teeth (301b-3), trigger piles (301b-4) and abutment piles (301b-5); the movable teeth (301b-3) can only rotate in one direction, and the end of the trigger pile (301b-4) is in a wedge shape.

7. The boiler without solid waste generation according to claim 6, characterized in that: The inner wall of the movable chamber (301b) is provided with a one-way rack (301b-7) connected to the movable chamber (301b) via a second spring (301b-6); the one-way rack (301b-7) is provided with a wedge pile (301b-8) abutting against the trigger pile (301b-4) and a damper (F) connected to the movable chamber (301b).

8. The boiler without solid waste generation according to claim 7, characterized in that: The dredging member (302) comprises a vibration pile (302a) arranged in the active chamber (301b), the vibration pile (302a) abuts against the abutment pile (301b-5), and is connected to the active chamber (301b) via a third spring (302b).

9. The boiler without solid waste generation according to claim 8, characterized in that: The vibrating pile (302a) and the wedge pile (301b-8) are in the same horizontal plane, and the abutting pile (301b-5) first abuts against the vibrating pile (302a), so that the vibrating pile (302a) is compressed; Then the trigger pile (301b-4) will abut against the wedge pile (301b-8).

10. The boiler without solid waste generation according to claim 9, characterized in that: The vibration pile (302a) is arranged in an annular shape in the activity chamber (301b).

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