Combustion power device of RDF fuel coupling fire coal fluidized bed
By designing an RDF fuel-coupled coal-fired fluidized bed combustion device, the problems of harmful gas and ash pollution during the incineration process were solved, efficient combustion and safe operation were achieved, and dioxin emissions and secondary pollution risks were reduced.
Patent Information
- Application Number
- CN202422870630.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When incinerating urban solid waste, the organic matter in the garbage rots and produces a foul odor, and chlorine-containing compounds generate harmful gases such as dioxins. The ash after incineration contains heavy metals, which can cause secondary pollution if not handled properly. RDF combustion increases dioxin emissions.
A RDF fuel-coupled coal-fired fluidized bed combustion device is designed. Air is pumped in to provide oxygen, a grid iron plate is used to collect ash, wooden handles and plugs are used to reduce heat absorption, and the base is positioned to ensure stable combustion.
Reduce the generation of harmful gases, improve combustion efficiency, collect ash, reduce the risk of secondary pollution, and ensure safe operation of the device.
Smart Images
Figure CN223484207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of RDF fuel combustion technology, specifically to an RDF fuel coupled coal-fired fluidized bed combustion power device. Background Technology
[0002] Incineration is an effective means of treating municipal solid waste and other garbage, but it also has some problems. For example, the decomposition of organic matter in garbage produces a foul odor, and transportation and storage are difficult; chlorine compounds in garbage produce hydrogen chloride gas and harmful substances such as dioxins; the ash discharged after garbage incineration contains heavy metals such as lead and mercury, and improper handling can cause secondary pollution.
[0003] RDF is a solid fuel made from municipal solid waste through crushing, sorting, drying, adding additives, and extrusion molding. By burning four types of RDF in a small-scale test device, it was found that the construction wood in the RDF led to a significant increase in dioxin emission concentration.
[0004] Therefore, we urgently need to provide an RDF fuel-coupled coal-fired fluidized bed combustion power unit that reduces the generation of harmful gases during combustion. Utility Model Content
[0005] The purpose of this invention is to provide an RDF fuel-coupled coal-fired fluidized bed combustion power device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an RDF fuel-coupled coal-fired fluidized bed combustion power device, comprising a combustion furnace and a grid iron plate, the grid iron plate being fixedly connected to the lower inner side of the combustion furnace, a furnace door being hinged to the upper front end of the combustion furnace, a handle being fixedly connected to the right front end of the furnace door, and combustion-supporting mechanisms being connected to the inner and outer ends of the combustion furnace.
[0007] The combustion-supporting mechanism includes an air pump installed on the left side of the outside of the combustion furnace. An air pipe is installed at the lower end of the air pump, and an air inlet is fixedly connected to the air pipe. A connecting block is fixedly connected to the right side of the front end of the outside of the combustion furnace. A spring is connected inside the connecting block. A ring is fixedly connected to the left end of the spring, and a plug rod is fixedly connected to the inner side of the ring.
[0008] A further improvement is that the air intake hopper is located below the grid plate at the bottom of the combustion furnace and faces upwards. This allows air to be drawn into the air pipe by starting the air pump and then sprayed upwards from the air intake hopper, ensuring that the bottom of the RDF fuel and carbon is filled with sufficient oxygen.
[0009] A further improvement is that a horizontal circular groove is provided in the middle of the connecting block, and a circular hole is provided through the middle of the connecting block. The right end of the spring is fixedly connected to the right end of the inner side of the circular groove, the outer edge of the ring is slidably connected to the inner side of the circular groove, and the outer side of the insertion rod is slidably connected to the inner side of the circular hole. Thus, when the spring bounces, it can drive the ring to slide along the inner side of the circular groove, while the insertion rod slides inside the circular hole.
[0010] A further improvement is that a feeding port is provided at the front end of the combustion furnace at the furnace door, and an insertion hole is provided at the right end of the furnace door. The outer side of the left end of the insertion rod is inserted into the inner side of the insertion hole, so that after the left end of the insertion rod moves into the insertion hole at the right end of the furnace door, the furnace door can be fixed to the front end of the feeding port.
[0011] A further improvement is that the handle is made of wood and the rod is made of wood, so that when the overall temperature of the combustion furnace rises due to combustion inside the furnace, the wooden handle and rod will not absorb too much heat and become hot.
[0012] A further improvement is that a base is provided at the lower end of the combustion furnace, and a positioning rod is fixedly connected to the lower side of the combustion furnace.
[0013] A further improvement is that an ash collection trough is provided at the upper end of the base, and a positioning hole is provided at the inner edge of the base. The outer side of the positioning rod is slidably connected to the inner side of the positioning hole. Thus, when the combustion furnace is placed on the base, the positioning rod at the bottom of the combustion furnace slides into the positioning hole inside the base, so that the base can be accurately positioned at the lower end of the combustion furnace.
[0014] In summary, this application discloses an RDF fuel-coupled coal-fired fluidized bed combustion power device.
[0015] In this technical solution, when RDF fuel and carbon are burning on the grid iron plate inside the combustion furnace, air is drawn into the air pipe by starting the air pump and then sprayed upward from the air inlet hopper. This ensures that the bottom of the RDF fuel and carbon is filled with sufficient oxygen, thereby allowing the RDF fuel and carbon to burn completely and reducing the harmful gases produced during combustion.
[0016] Furthermore, when the combustion furnace is placed on the base, the positioning rod at the bottom of the combustion furnace slides into the positioning hole inside the base, so that the base is accurately positioned at the lower end of the combustion furnace. This allows the ash produced by the combustion of RDF fuel and carbon on the grid plate in the combustion furnace to fall directly into the ash collection trough inside the base after falling from the grid plate, thus playing a role in ash collection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the material filling port structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the spring structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the combustion furnace of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure at the lower end of the combustion furnace of this utility model;
[0022] Figure 6 This is a schematic diagram of the base structure of this utility model.
[0023] In the diagram: 1. Combustion furnace; 2. Mesh iron plate; 3. Furnace door; 4. Handle; 501. Air pump; 502. Air pipe; 503. Air inlet hopper; 504. Connecting block; 505. Spring; 506. Ring; 507. Insert rod; 601. Base; 602. Positioning rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-6 This utility model provides a technical solution: an RDF fuel coupled coal-fired fluidized bed combustion power device, including a combustion furnace 1 and a grid iron plate 2. The grid iron plate 2 is fixedly connected to the lower inner side of the combustion furnace 1. A furnace door 3 is hinged to the upper front end of the combustion furnace 1. A handle 4 is fixedly connected to the right front end of the furnace door 3. Combustion-supporting mechanisms are connected to the inner and outer ends of the combustion furnace 1.
[0026] The combustion-supporting mechanism includes an air pump 501 installed on the left side of the outside of the combustion furnace 1. An air pipe 502 is installed at the lower end of the air pump 501. An air inlet 503 is fixedly connected to the air pipe 502. The air inlet 503 is located below the grid iron plate 2 at the bottom of the inside of the combustion furnace 1 and faces upward. When the RDF fuel and carbon on the grid iron plate 2 inside the combustion furnace 1 are burning, the air pump 501 is activated to draw air into the air pipe 502 and then sprays it upward from the air inlet 503. This allows the bottom of the RDF fuel and carbon to be filled with sufficient oxygen, so that the RDF fuel and carbon can be fully burned and the harmful gases produced during combustion can be reduced.
[0027] A connecting block 504 is fixedly connected to the right side of the front end of the outer side of the combustion furnace 1. A spring 505 is connected inside the connecting block 504. A ring 506 is fixedly connected to the left end of the spring 505. A rod 507 is fixedly connected to the inner side of the ring 506. A horizontal circular groove is opened in the middle of the connecting block 504. A circular hole is opened through the middle of the connecting block 504. The right end of the spring 505 is fixedly connected to the right end of the inner side of the circular groove. The outer edge of the ring 506 is slidably connected to the inner side of the circular groove. The outer side of the rod 507 is slidably connected to the inner side of the circular hole. Thus, when the spring 505 bounces, it can drive the ring 506 to slide along the inner side of the circular groove. At the same time, the rod 507 slides inside the circular hole, which limits the movement trajectory of the ring 506 and the rod 507.
[0028] A feeding port is provided at the front end of the combustion furnace 1 at the furnace door 3. An insertion hole is provided at the right end of the furnace door 3. The outer side of the left end of the insertion rod 507 is inserted into the inner side of the insertion hole. Thus, after the furnace door 3 is rotated to the front end of the combustion furnace 1 and the feeding port is closed, the spring 505 rebounds and pushes the left ring 506, which drives the left end of the insertion rod 507 to move into the insertion hole at the right end of the furnace door 3. This fixes the furnace door 3 to the front end of the feeding port, keeping it closed.
[0029] The handle 4 is a wooden handle 4, and the rod 507 is a wooden rod. So when the temperature of the combustion furnace 1 rises due to combustion inside the combustion furnace 1, the wooden handle 4 and the rod 507 will not absorb too much heat and become hot, so that the furnace door 3 and the rod 507 can be pulled when it is necessary to open the furnace door 3.
[0030] A base 601 is provided at the lower end of the combustion furnace 1. A positioning rod 602 is fixedly connected to the lower side of the combustion furnace 1. An ash collection groove is provided at the upper end of the base 601. A positioning hole is provided at the inner edge of the base 601. The outer side of the positioning rod 602 is slidably connected to the inner side of the positioning hole. Thus, when the combustion furnace 1 is placed on the base 601, the positioning rod 602 at the bottom of the combustion furnace 1 slides into the positioning hole inside the base 601, so that the base 601 is accurately positioned at the lower end of the combustion furnace 1. This allows the ash produced by the combustion of RDF fuel and carbon on the grid iron plate 2 in the combustion furnace 1 to fall directly into the ash collection groove inside the base 601 after falling from the grid iron plate 2, thus playing a role in ash collection.
[0031] Working principle: When using the combustion furnace 1, first put RDF fuel and carbon into the grid iron plate 2 in the combustion furnace 1, then ignite it. At the same time, start the air pump 501 to draw air into the air pipe 502, and then spray it upward from the air inlet hopper 503 to the RDF fuel and carbon above the grid iron plate 2, so that the bottom of the RDF fuel and carbon is filled with enough oxygen for complete combustion. When it is necessary to add fuel to the combustion furnace 1, pull the plug rod 507 to the right so that its left end is no longer in the plug hole on the right end of the furnace door 3, and then pull the handle 4 forward to open the furnace door 3. Then add RDF fuel and carbon into the combustion furnace 1 through the feeding port to continue combustion.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An RDF fuel-coupled coal-fired fluidized bed combustion power device, comprising a combustion furnace (1) and a grid plate (2), wherein the grid plate (2) is fixedly connected to the lower inner side of the combustion furnace (1), characterized in that: A furnace door (3) is hinged above the front end of the combustion furnace (1), and a handle (4) is fixedly connected to the right side of the front of the furnace door (3). Combustion-supporting mechanisms are connected to the inner and outer ends of the combustion furnace (1). The combustion-supporting mechanism includes an air pump (501) installed on the left side of the outside of the combustion furnace (1). An air pipe (502) is installed at the lower end of the air pump (501). An air inlet hopper (503) is fixedly connected to the air pipe (502). A connecting block (504) is fixedly connected to the right side of the front end of the outside of the combustion furnace (1). A spring (505) is connected inside the connecting block (504). A ring (506) is fixedly connected to the left end of the spring (505). A plug rod (507) is fixedly connected to the inner side of the ring (506).
2. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 1, characterized in that: The air intake hopper (503) is located below the grid iron plate (2) at the bottom of the combustion furnace (1) and faces upward.
3. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 1, characterized in that: A horizontal circular groove is provided in the middle of the interior of the connecting block (504), and a circular hole is provided through the middle of the interior of the connecting block (504). The right end of the spring (505) is fixedly connected to the right end of the inner side of the circular groove. The outer edge of the ring (506) is slidably connected to the inner side of the circular groove. The outer side of the insert rod (507) is slidably connected to the inner side of the circular hole.
4. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 1, characterized in that: The combustion furnace (1) has a feeding port at the front end of the furnace door (3), and the right end of the furnace door (3) has an insertion hole. The outer side of the left end of the insertion rod (507) is inserted into the inner side of the insertion hole.
5. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 1, characterized in that: The handle (4) is a wooden handle (4), and the insertion rod (507) is a wooden rod.
6. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 1, characterized in that: The lower end of the combustion furnace (1) is provided with a base (601), and a positioning rod (602) is fixedly connected to the lower side of the combustion furnace (1).
7. The RDF fuel-coupled coal-fired fluidized bed combustion power plant according to claim 6, characterized in that: The upper end of the base (601) is provided with a dust collection groove, and the inner edge of the base (601) is provided with a positioning hole. The outer side of the positioning rod (602) is slidably connected to the inner side of the positioning hole.