Boiler without solid waste and waste management system

Abstract

The invention discloses a boiler free of solid waste generation and a waste management system, and relates to the field of boilers, the boiler free of solid waste generation comprises a combustion chamber and an electric melting chamber, the combustion chamber and the electric melting chamber are vertically connected through a main flow channel, and fuel is primarily combusted through the combustion chamber; at the moment, solid slag, fly ash and other substances can be generated, the solid slag can directly fall into the electric melting chamber under the influence of gravity, the fly ash can gradually rise until flowing into the dust remover, the vertical structure is beneficial to utilizing waste heat of bottom slag, the bottom slag directly falls into the electric melting chamber under the action of gravity, extra conveying energy consumption is reduced, and the conveying efficiency is improved. And the requirement for additional conveying equipment is reduced, so that the equipment cost and the maintenance cost are reduced, and meanwhile, the gravity action is also beneficial to uniform distribution of the bottom slag in the electric melting chamber.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, in particular to a boiler without generating solid waste and a waste management system. 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 current development concept of innovation, coordination, green, openness and sharing, we will continue to promote the reduction of solid waste sources 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, there is a need for a boiler device that can achieve a high recovery rate and can efficiently manage waste products. 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.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a boiler without generating 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 flow channel; the bottom ash in the combustion chamber can directly fall into the electric melting chamber by gravity.

[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, 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.

[0009] As a preferred embodiment of the boiler without generating solid wastes described in the present invention, one side of the electrofusion chamber is connected to the first conveyor, and the other side of the electrofusion chamber is connected to the second conveyor, and a silo is provided above the second conveyor.

[0010] As a preferred solution of the boiler without generating solid wastes described in the present invention, a liquid slag outlet is provided on the electric melting chamber, and the liquid slag outlet is connected with the injector and the former in sequence.

[0011] Another object of the present invention is to provide a waste management system applied to the boiler that does not generate solid waste, the system comprising: a monitoring component fixedly installed on the boiler, for real-time monitoring of the physical and chemical properties of the waste; a control component connected to the boiler control system, for collecting data from the monitoring component; and an execution component, for adjusting the waste treatment process according to the instructions of the control component.

[0012] As a preferred solution of the waste management system of the present invention, the monitoring component includes a temperature sensor, a humidity sensor and a component analyzer fixedly installed on the combustion chamber and the electric melting chamber.

[0013] As a preferred solution of the waste management system of the present invention, the control component includes a data acquisition module and a processing module connected to the boiler control system.

[0014] As a preferred solution of the waste management system of the present invention, the execution component includes a controller connected to the valve at the liquid slag outlet, and the controller can adjust the operation according to the instructions of the processing module.

[0015] As a preferred solution of the waste management system of the present invention, wherein: according to the impact evaluation of the monitoring component, real-time feedback adjustment can be provided to the control component.

[0016] The beneficial effects of the present invention are:

[0017] 1. 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 and increasing the income of power plants;

[0018] 2. By monitoring waste characteristics in real time and dynamically adjusting the treatment process, waste can be converted into valuable products more efficiently;

[0019] 3. The bottom slag is directly dropped into the melting chamber by gravity, saving transportation equipment

[0020] 4. Intelligent control systems can optimize energy use and reduce energy waste based on waste characteristics and processing requirements, thereby reducing overall operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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:

[0022] Figure 1 Scenario diagram for a boiler that generates no solid waste.

[0023] Figure 2 Flowchart of the waste management system. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Example 1

[0028] Reference Figure 1 , 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 and an electric melting chamber 200. 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;

[0029] The vertical connection has the following beneficial effects:

[0030] 1. It can make more effective use of space and reduce floor space;

[0031] 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;

[0032] 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;

[0033] 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.

[0034] When in use, the combustion chamber 100 starts to burn materials, and the bottom ash produced falls into the electric melting chamber 200 due to gravity.

[0035] Example 2

[0036] Reference Figure 1 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0037] 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 the high-voltage electrode until the bottom ash is in a molten state.

[0038] 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;

[0039] 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.

[0040] When in use, the combustion chamber 100 of the boiler burns fuel to generate heat, and at the same time controls the combustion temperature to be lower than the ash melting point to prevent coking. Solid slag, fly ash and auxiliary materials are fed into the electromelting chamber 200. The three-phase high-voltage electrodes inside the electromelting chamber 200 heat the waste to 1400°C, so that the bottom slag and fly ash become molten. The molten bottom slag and fly ash flow out from the liquid slag outlet 203 of the electromelting chamber 200, enter the injector 204 to form fibers, and then the fibers enter the former 205 to become rock wool boards. Finally, the rock wool boards are exported as by-products to increase the revenue of the power plant. This process realizes the resource utilization of waste, which not only reduces the generation of solid waste, but also utilizes the thermal energy of waste, saves energy consumption, and creates economic benefits.

[0041] Example 3

[0042] Reference Figure 2 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0043] Specifically, the monitoring assembly 300 is fixedly mounted on the boiler and is used to monitor the physical and chemical characteristics of the waste in real time;

[0044] The control component 400 is connected to the boiler control system and is used to collect data from the monitoring component 300;

[0045] The execution component 500 adjusts the waste treatment process according to the instructions of the control component 400.

[0046] Preferably, the monitoring component 300 includes a temperature sensor, a humidity sensor and a component analyzer fixedly installed on the combustion chamber 100 and the melting chamber 200 .

[0047] Preferably, the control component 400 includes a data acquisition module and a processing module connected to the boiler control system.

[0048] Preferably, the execution component 500 includes a controller connected to the valve at the liquid slag outlet 203, and the controller can adjust the operation according to the instructions of the processing module.

[0049] Preferably, the impact assessment of the monitoring component 300 can be used to provide real-time feedback adjustments to the control component 400 .

[0050] When in use, install and calibrate sensors to monitor the physical and chemical properties of waste generated by the boiler, such as temperature, humidity, particle size, and chemical composition, to ensure that the sensors can collect data in real time and accurately. Use the data acquisition module to collect the data monitored by the sensor, and transmit the data to the processing module through a wired or wireless network. The processing module receives the data and uses data analysis software for processing. The analysis software identifies the changing trends and patterns of waste characteristics and provides decision support for subsequent processing. Based on the data analysis results, the processing module makes processing decisions, which include adjustments to the waste treatment process, such as changing the temperature of the electric melting chamber 200, adjusting the parameters of the wire drawing blowing device, etc.

[0051] 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); The bottom ash in the combustion chamber (100) can directly fall into the electric melting chamber (200) by gravity.

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).

4. The boiler without solid waste generation according to claim 3, characterized in that: 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).

5. The boiler without solid waste generation according to claim 4, characterized in that: 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).

6. A waste management system, characterized in that: The boiler comprising the boiler without generating solid waste as claimed in claims 1 to 5, further comprising A monitoring assembly (300) is fixedly mounted on the boiler and is used to monitor the physical and chemical characteristics of the waste in real time; A control component (400), connected to the boiler control system, and used to collect data from the monitoring component (300); The execution component (500) adjusts the waste treatment process according to the instructions of the control component (400).

7. The boiler without solid waste generation according to claim 6, characterized in that: The monitoring component (300) comprises a temperature sensor, a humidity sensor and a component analyzer fixedly mounted on the combustion chamber (100) and the electric melting chamber (200).

8. The boiler without solid waste generation according to claim 7, characterized in that: The control component (400) comprises a data acquisition module and a processing module connected to the boiler control system.

9. The boiler without solid waste generation according to claim 8, characterized in that: The execution component (500) comprises a controller connected to a valve at the liquid slag outlet (203), and the controller can adjust the operation according to the instructions of the processing module.

10. The boiler without solid waste generation according to claim 9, characterized in that: Based on the impact assessment of the monitoring component (300), real-time feedback adjustment can be provided to the control component (400).

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