Incinerator capable of achieving sufficient combustion and used for garbage power generation

Abstract

The utility model relates to the technical field of garbage treatment, in particular to a sufficient-combustion incinerator for garbage power generation, which comprises an incinerator body provided with a combustion chamber and a feed inlet; the fire grate is arranged at the bottom of the combustion chamber; the arc-shaped plate is arranged above the fire grate, the inner side of the arc-shaped plate faces the direction of the feeding port of the furnace body, and a gap is formed between the bottom of the arc-shaped plate and the fire grate; and the main air duct is located below the arc-shaped plate, and an air outlet of the main air duct points to the inner side of the arc-shaped plate. By means of the mode that the main air duct and the arc-shaped plate are arranged in a matched mode, airflow is formed on the inner side of the arc-shaped plate, on the basis that the garbage and air mixing effect is improved, part of garbage can be driven to move to the position above a garbage combustion point to be combusted again, and the garbage combustion efficiency is remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of waste treatment, and particularly to an incinerator for waste power generation with sufficient combustion. Background Art

[0002] The incinerator for waste power generation generates heat by burning the pre-treated waste, thereby achieving power generation. Inside the incinerator, the degree of full combustion of the waste determines the amount of power generated per unit weight of the waste. When the waste burns insufficiently in the incinerator, the heat generated will be lower than expected, resulting in a decrease in power generation. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, this application provides an incinerator for waste power generation with sufficient combustion, which improves the combustion efficiency of the waste in the incinerator by combining the improvement of the contact efficiency between the waste and air with the re-combustion of the waste.

[0004] The above application purpose of this application is achieved through the following technical solutions:

[0005] An incinerator for waste power generation with sufficient combustion, comprising:

[0006] A furnace body, which has a combustion chamber and a feed inlet;

[0007] A grate, arranged at the bottom of the combustion chamber;

[0008] An arc-shaped plate, arranged above the grate, the inner side of the arc-shaped plate faces the feed inlet direction of the furnace body, and there is a gap between the bottom of the arc-shaped plate and the grate;

[0009] A main air duct, located below the arc-shaped plate, wherein,

[0010] The air outlet of the main air duct points to the inner side of the arc-shaped plate.

[0011] Optionally, the grate includes a combustion section and a discharging section, and the bottom of the arc-shaped plate is located on the side of the combustion section close to the discharging section.

[0012] Optionally, the grate includes a combustion section and a discharging section, and the bottom of the arc-shaped plate is located on the side of the discharging section close to the combustion section.

[0013] Optionally, the arc-shaped plate further has protrusions, and the side of the protrusion away from the arc-shaped plate penetrates through the inner side surface of the arc-shaped plate.

[0014] Optionally, the protrusions are located on the side of the arc-shaped plate away from the grate.

[0015] Optionally, there are multiple protrusions, and the multiple protrusions are arranged linearly.

[0016] Optionally, an air hood is provided at the air outlet of the main air duct. One side of the air hood close to the arc-shaped plate has an opening, and the cross-sectional dimension of the opening is smaller than that of the air outlet of the main air duct.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. By the cooperation of the main air duct and the arc-shaped plate, an air flow is formed inside the arc-shaped plate. On the basis of improving the mixing effect of garbage and air, it can drive part of the garbage to move above the garbage combustion point for re-combustion, significantly improving the combustion efficiency of the garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic cross-sectional view of an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the wind direction of an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the garbage movement route of an embodiment of the present application;

[0022] Figure 4 is a schematic cross-sectional view of the position of the arc-shaped plate of an embodiment of the present application;

[0023] Figure 5 is a schematic cross-sectional view of the position of the arc-shaped plate of an embodiment of the present application;

[0024] Figure 6 is a front view schematic diagram of the arc-shaped plate of an embodiment of the present application;

[0025] Figure 7 is a front view schematic diagram of the arc-shaped plate of an embodiment of the present application;

[0026] Figure 8 is a schematic cross-sectional view of the air hood of an embodiment of the present application.

[0027] Reference Signs:

[0028] 10, furnace body;

[0029] 20, combustion chamber;

[0030] 30, grate; 31, combustion section; 32, discharging section;

[0031] 40, arc-shaped plate; 41, protrusion;

[0032] 50, main air duct; 51, air hood. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further describes the present application in detail with reference to the accompanying drawings.

[0034] To more clearly understand the technical solution provided by the embodiments of the present application, first, a brief introduction to the existing incinerator for waste power generation is given.

[0035] The waste is pre-placed and negatively pressured at the waste treatment plant. After treatment, the waste enters the incinerator through the feeding port of the incinerator and conveying tools such as the feeding trolley provided at the feeding port, and the feeding grate provided in the incinerator continuously sends the waste to the combustion point. The waste burns at the combustion point to release heat. When the waste passes through the combustion point, it is considered to be completed, and then it is collected for the next step of treatment.

[0036] From the above existing waste combustion method, it can be seen that the waste is stacked and passes through the combustion point by means of grate feeding to complete combustion and collection of the residue. That is, the waste only burns oxidatively in a stacked manner near the combustion point. If the waste is divided into upper, middle, and lower layers, then the waste in the upper layer has a larger contact area with air and burns more fully; while for the waste in the middle and lower layers, due to the waste in the upper layer blocking part of the oxygen and heat, the waste in the lower layer does not burn as fully as the upper layer. This causes the waste not to burn fully after passing through the combustion point, and the heat released is lower than expected, resulting in the power generation being lower than expected.

[0037] To solve the above technical problems, the embodiments of the present application provide an incinerator for waste power generation with sufficient combustion. Referring to Figure 1 , it includes a furnace body 10 with a combustion chamber 20 inside. A grate 30 for carrying and conveying waste is provided inside the furnace body 10, and the grate 30 is installed at the bottom of the combustion chamber 20;

[0038] An arc-shaped plate 40 is provided above the grate 30. The arc-shaped plate 40 can be fixedly connected to the inner wall of the furnace body 10 or to the joint between the grate 30 and the furnace body 10. There is a gap between the bottom of the arc-shaped plate 40 and the top of the grate 30. The cross-section of the arc-shaped plate 40 is arc-shaped, and the inner side of the arc-shaped plate 40 faces the feeding port of the furnace body 10. That is, when the incinerator is working normally, the waste feeds in the direction of the inner side of the arc-shaped plate 40;

[0039] Several air ducts are provided below the grate 30, and one or more main air ducts 50 are located below the arc-shaped plate 40. The air outlet of the main air duct 50 points to the inner side of the arc-shaped plate 40.

[0040] Combined with a specific usage scenario, the pretreated waste enters the furnace body 10 through the feeding port of the furnace body 10, and enters the combustion chamber 20 through the conveying of the feeding trolley and accumulates on the grate 30. The grate 30 further conveys the waste in the direction of the inner side of the arc-shaped plate 40. The treated waste burns on the grate 30, and the waste passing through the combustion point of the grate 30 continues to move in the direction of the arc-shaped plate 40;

[0041] Refer to Figure 2 , at this time, the main air duct 50 continuously blows air to the inner side of the arc-shaped plate 40. Since the air outlet of the main air duct 50 points to the inner side of the arc-shaped plate 40, the air sent into the inner side of the arc-shaped plate 40 from the air outlet of the main air duct 50 will move arc-shaped upward along the inner side surface of the arc-shaped plate 40, thus forming an air duct that moves arc-shaped from the bottom to the upper part on the inner side of the arc-shaped plate 40. In this way, when the garbage transported by the grate 30 to the inner side of the arc-shaped plate 40 enters the air duct on the inner side of the aforementioned arc-shaped plate 40, some garbage will be blown up by the wind as shown in Figure 3 , mixed with the surrounding air, move upward above the combustion point of the grate 30 and burn again. On the one hand, it increases the air feeding efficiency on the side of the garbage combustion point close to the arc-shaped plate 40, making the garbage at the garbage combustion point burn more fully. On the other hand, it increases the number of times the garbage discharged from the garbage combustion point burns, significantly improving the combustion efficiency of the garbage.

[0042] Combined with the problems in the aforementioned prior art, in the embodiment of the present application, the garbage on the grate 30 will move away from the combustion point and enter the inner side of the arc-shaped plate 40 through the movement of the grate 30. At this time, the garbage on the grate 30 in the embodiment of the present application is also divided into upper, middle and lower layers. When this part of the garbage enters the airflow on the inner side of the arc-shaped plate 40, since the aforementioned airflow is provided by the main air duct 50 below, this airflow will blow the garbage upward from bottom to top and into the aforementioned airflow, which makes the upper, middle and lower layers of the garbage mix in the airflow. After mixing, the garbage will re-enter the combustion point and burn again, thus obtaining a higher combustion efficiency.

[0043] Generally speaking, the embodiment of the present application improves the combustion efficiency of the garbage in the incinerator by combining the improvement of the contact efficiency between the garbage and the air and the re-combustion of the garbage.

[0044] It should be understood that the aforementioned "the arc-shaped plate 40 can be fixedly connected to the inner wall of the furnace body 10 or fixedly connected to the joint part of the grate 30 and the furnace body 10" means that the arc-shaped plate 40 is relatively fixed to the inner wall of the furnace body 10 or the joint part of the grate 30 and the furnace body 10 during operation, and its fixing method can be detachable connection or welding.

[0045] It should also be noted that the air duct formed on the inner side of the arc-shaped plate 40 is essentially an airflow that moves arc-shaped from the bottom to the upper part. The edge part of the combustion point above the grate 30 close to the inner side of the arc-shaped plate 40 will be affected by the wind pressure and move towards the inner side of the arc-shaped plate 40 until it enters the aforementioned air duct and gradually moves above the combustion point. This process improves the contact efficiency between this part of the garbage and the surrounding air and realizes re-combustion, significantly improving the combustion efficiency of this part of the garbage and the overall combustion efficiency.

[0046] As a feasible specific implementation of the embodiment of the present application, the grate 30 includes a combustion section 31 for burning garbage and a discharge section 32 for discharging the residual material of the garbage combustion. The combustion section 31 and the discharge section 32 are part of the grate 30. The position of the arc plate 40 has the following two situations:

[0047] First, reference Figure 4 The bottom of the arc plate 40 is located on the side of the combustion section 31 close to the discharge section 32. The arc plate 40 is located in the combustion section 31. The garbage that has just been burned quickly enters the bottom of the arc plate 40 and enters the air duct formed on the inner side of the arc plate 40, fully mixes with the air and moves to the top of the combustion section 31 to burn again, which significantly improves the combustion efficiency of the garbage.

[0048] Second, reference Figure 5 The bottom of the arc plate 40 is located on the side of the discharge section 32 close to the combustion section 31, and the bottom of the arc plate 40 is located inside the discharge section 32. After the garbage that has just been burned has gone through the process of sedimentation and heat release, it enters the bottom of the arc plate 40 and enters the air duct formed inside the arc plate 40, fully mixes with the air and moves to the top of the combustion section 31 to burn again, which significantly improves the combustion efficiency of the garbage;

[0049] As a feasible specific implementation of the embodiment of the present application, the curved plate 40 also has the following Figure 6 or Figure 7 The protrusion 41 shown protrudes from the inner side of the arc-shaped plate 40 , that is, the side of the protrusion 41 away from the arc-shaped plate 40 penetrates the inner side of the arc-shaped plate 40 .

[0050] The protrusion 41 may be formed by bending inwardly a side of the arc plate 40 away from the grate 30 , or may be integrally formed with the arc plate 40 , or may be formed by welding a protrusion to the inner side of the arc plate 40 .

[0051] In combination with a specific usage scenario, the main air duct 50 blows air into the interior of the curved plate 40 so that the airflow formed inside the curved plate 40 collides with the aforementioned protrusion 41 when moving upward.

[0052] The airflow entrained with the garbage will be disturbed at the protrusion 41, causing the air in this part to mix more fully with the garbage. The end of the arc plate 40 away from the grate 30 is above the combustion point of the garbage. The airflow disturbed by the protrusion 41 and the garbage directly enter the upper part of the garbage combustion point, thereby improving the combustion efficiency of the garbage.

[0053] In some possible implementations of the embodiment of the present application, the protrusion 41 may be disposed in the middle of the inner side of the arc plate 40 or on a side of the arc plate 40 away from the grate 30 .

[0054] In some possible implementations of the embodiments of the present application, the protrusions 41 may be one or more protrusions 41 that are continuously arranged on the arc plate 40 , or may be multiple protrusions 41 that are intermittently and linearly distributed on the inner side surface of the arc plate 40 .

[0055] As a feasible specific implementation method of the present application embodiment, refer to Figure 8 The main air duct 50 located at the bottom of the curved plate 40 has an air outlet, and the aforementioned air outlet is provided with a wind cover 51, which can be installed to the air outlet of the main air duct 50 located at the bottom of the curved plate 40 by bolts or snaps. The aforementioned wind cover 51 has an opening in the part close to the curved plate 40, so that the wind blown out of the main air duct 50 can pass through the wind cover 51 and act on the curved plate 40, and the cross-sectional size of the aforementioned wind cover 51 is smaller than the interface size of the air outlet of the main air duct 50.

[0056] In combination with a specific usage scenario, the external fan drives the airflow to be infused into the main air duct 50. After passing through the wind cover 51 with a smaller cross-sectional size, the airflow inside it will increase the flow rate and wind pressure, which will make the flow rate and wind pressure of the airflow entering the inner side of the curved plate 40 higher. In this way, the garbage can be mixed with the surrounding air more quickly and re-enter the combustion point under the drive of the airflow on the inner side of the curved plate 40, thereby significantly improving the combustion efficiency of the garbage.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An incinerator for waste power generation with sufficient combustion, characterized in that, Comprising: A furnace body (10) having a combustion chamber (20) and a feed inlet; A grate (30) provided at the bottom of the combustion chamber (20); An arc-shaped plate (40) provided above the grate (30), the inner side of the arc-shaped plate (40) facing the direction of the feed inlet of the furnace body (10), and there is a gap between the bottom of the arc-shaped plate (40) and the grate (30); A main air duct (50) located below the arc-shaped plate (40), wherein, The air outlet of the main air duct (50) points to the inner side of the arc-shaped plate (40).

2. The incinerator for waste power generation with sufficient combustion according to claim 1, characterized in that, The grate (30) includes a combustion section (31) and a discharge section (32), and the bottom of the arc-shaped plate (40) is located on the side of the combustion section (31) close to the discharge section (32).

3. The incinerator for waste power generation with sufficient combustion according to claim 1, characterized in that, The grate (30) includes a combustion section (31) and a discharge section (32), and the bottom of the arc-shaped plate (40) is located on the side of the discharge section (32) close to the combustion section (31).

4. The incinerator for waste power generation with sufficient combustion according to any one of claims 1-3, characterized in that, The arc-shaped plate (40) further has a protrusion (41), and the side of the protrusion (41) away from the arc-shaped plate (40) penetrates the inner side surface of the arc-shaped plate (40).

5. The incinerator for waste power generation with sufficient combustion according to claim 4, characterized in that, The protrusion (41) is located on the side of the arc-shaped plate (40) away from the grate (30).

6. The incinerator for waste power generation with sufficient combustion according to claim 5, characterized in that, There are a plurality of the protrusions (41), and the plurality of protrusions (41) are arranged linearly.

7. The incinerator for waste power generation with sufficient combustion according to claim 1, characterized in that, An air hood (51) is provided at the air outlet of the main air duct (50), and the side of the air hood (51) close to the arc-shaped plate (40) has an opening, and the cross-sectional dimension of the opening is smaller than the cross-sectional dimension of the air outlet of the main air duct (50).

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