Furnace arch and fire grate combined efficient incinerator

By combining the furnace arch and grate structure with a self-cleaning filtration system, the problems of heat loss and flue gas emissions are solved, the incineration efficiency is improved, and heat recovery and environmental protection are achieved.

CN224121249UActive Publication Date: 2026-04-14JIEQI MARK ENERGY TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing furnace and grate structure results in severe heat loss, low combustion efficiency, difficult feeding operation, and lack of filtration function for flue gas discharge, which pollutes the environment.

Method used

The furnace adopts a combined structure of furnace arch and grate, and achieves sealing by combining the feeding chamber and rotating synchronous plate. The furnace arch reflects heat, and self-cleaning filter baffles and hot water exchange pipes are set to reduce heat loss and recover heat from flue gas.

Benefits of technology

It improves waste incineration efficiency, ensures smooth feeding, reduces heat loss, achieves flue gas filtration and heat recovery, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a furnace arch and fire grate combined type efficient incinerator which comprises a fire grate main body and a hearth installed on the top of the fire grate main body, a furnace arch main body is installed on the inner wall of the hearth and located on the top of the fire grate main body, a feeding cavity is formed in the hearth, a driving motor is fixedly installed on the front face of the hearth, and a discharging cavity is formed in the front face of the driving motor. And an output shaft of the driving motor penetrates through the hearth and extends into the feeding cavity. According to the utility model, the feeding cavity and the rotating synchronous plate are arranged to seal the feeding cavity, the furnace arch main body is matched to reduce heat loss and improve the combustion efficiency of garbage, and meanwhile, the synchronous plate can directly guide the garbage to the top of the fire grate main body for combustion when the garbage is added, so that the combustion quality is equivalently and orderly improved; and meanwhile, a self-cleaning filtering baffle is arranged in the flue, so that impurities can be prevented from being discharged, and a heat exchange water pipe is arranged at the tail end of the smoke pipe, so that heat of discharged smoke is recycled.
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Description

Technical Field

[0001] This utility model relates to the field of combustion furnace technology, specifically to a high-efficiency incinerator with a combination of furnace arch and grate. Background Technology

[0002] A waste incinerator is a device for incinerating and processing waste. Waste burns in the furnace, turning into exhaust gas which enters the secondary combustion chamber. Under forced combustion by the burner, the gas is completely burned, then enters a spray dust collector. After dust removal, it is discharged into the atmosphere through a chimney. A waste incinerator consists of four main systems: a waste pretreatment system, an incineration system, a flue gas biochemical dust removal system, and a gasifier. It integrates automatic feeding, screening, drying, incineration, ash removal, dust collection, and automated control.

[0003] In incineration systems, waste combustion typically takes place inside the furnace, with the waste gradually propelled and burned on the grate. However, current furnace and grate structures suffer from significant heat loss, resulting in low waste incineration efficiency.

[0004] Patent application CN202322316036.8 discloses a high-efficiency incinerator combining a grate and an arch, comprising: a grate, a furnace chamber, and a grate. The furnace chamber is shrouded on the grate, forming a cavity between the furnace chamber and the grate to accommodate the grate arch. The grate arch is located above the grate, and its extension direction is the same as that of the grate. The grate arch is a convex structure facing away from the grate. This high-efficiency incinerator, by placing the grate arch in a convex structure facing away from the grate, allows the upward diffusion of heat from waste combustion on the grate to be blocked and reflected back onto the grate by the grate arch, thus concentrating heat on the grate and accelerating waste incineration efficiency.

[0005] The structure places the furnace arch on top of the grate to block the upward diffusion of heat, thereby concentrating the heat and accelerating the incineration efficiency of the waste. However, the structure is prone to heat loss at the feed inlet, and the structure that pushes the waste needs to move back and forth, which makes it difficult to control the actual operation when filling the waste. The flue gas also lacks filtration function and is directly discharged, which is harmful to the environment. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a high-efficiency incinerator with a combination of furnace arch and grate to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution;

[0008] A combined high-efficiency incinerator with a grate and an arch includes a grate body and a furnace chamber mounted on top of it. The grate body is mounted on the inner wall of the furnace chamber and is located on top of the grate body. A feeding chamber is provided inside the furnace chamber. A drive motor is fixedly mounted on the front of the furnace chamber. The output shaft of the drive motor passes through the furnace chamber and extends into the feeding chamber. A synchronous shaft is fixedly connected to the output shaft of the drive motor, and evenly distributed synchronous plates are fixedly connected to the synchronous shaft. A flue is provided on the right side of the furnace chamber, and a flue pipe is fixedly connected to the inner wall of the flue. The other end of the flue pipe passes through and extends to the bottom of the grate body. A discharge chute is provided at the bottom of the grate body and is located at the bottom of the flue pipe. Auxiliary components are provided on the flue pipe.

[0009] The auxiliary component includes a filter baffle that is slidably connected inside the flue. An extension plate is fixedly connected to both the front and back of the filter baffle. The extension plate passes through and extends to the outside of the flue. Two springs are fixedly connected to the bottom of the extension plate, and the bottom ends of the springs are fixedly connected to the flue. A metal block is fixedly connected to the top of the extension plate. An electromagnet is fixedly installed on the flue, and the electromagnet is located on top of the metal block and is magnetically connected to the metal block.

[0010] As a further description of the above technical solution: the surface of the synchronization plate is smooth, and both the front and back sides of the synchronization plate are in contact with the inner wall of the feeding chamber.

[0011] As a further description of the above technical solution: a heat exchange box is detachably connected to the bottom of the furnace, and a hot water pipe is installed inside the heat exchange box, with both ends of the hot water pipe penetrating and extending to the outside of the heat exchange box.

[0012] As a further description of the above technical solution: sealing plates are fixedly connected to both the top and bottom of the extension plate, and the sealing plates are slidably sealed to the outer wall of the flue.

[0013] As a further description of the above technical solution: the spring is provided with a telescopic sleeve inside, the top end of the telescopic sleeve is fixedly installed with the bottom of the extension plate, and the bottom end of the telescopic sleeve is installed on the smoke pipe.

[0014] As a further description of the above technical solution: a filter plate is detachably connected to the right side of the heat exchange box.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] In this invention, the feeding chamber can be sealed by setting up a feeding chamber and a rotating synchronous plate. Combined with the furnace arch body, it can reduce heat loss and improve the combustion efficiency of waste. At the same time, when adding waste, the synchronous plate can directly guide the waste to the top of the grate body for combustion, thereby improving the combustion quality in an equal and orderly manner. In addition, the self-cleaning filter baffle installed inside the flue can prevent impurities from being discharged, and the hot water exchange pipe installed at the end of the flue pipe can realize the recovery of heat from the discharged flue gas. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a frontal cross-sectional view of the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a side view sectional structural diagram of the auxiliary component of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Grate body; 2. Furnace chamber; 3. Furnace arch body; 4. Feed chamber; 5. Drive motor; 6. Synchronous shaft; 7. Synchronous plate; 8. Flue; 9. Smoke pipe; 10. Discharge chute; 11. Auxiliary components; 1101. Filter baffle; 1102. Extension plate; 1103. Spring; 1104. Metal block; 1105. Electromagnet; 12. Heat exchanger box; 13. Hot water pipe; 14. Sealing plate; 15. Telescopic sleeve; 16. Filter plate. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-4In this utility model, a combined high-efficiency incinerator of grate and furnace arch includes a grate body 1 and a furnace chamber 2 installed on top of it. A furnace arch body 3 is installed on the inner wall of the furnace chamber 2, and the furnace arch body 3 is located on top of the grate body 1. A feeding chamber 4 is opened inside the furnace chamber 2. A drive motor 5 is fixedly installed on the front of the furnace chamber 2. The output shaft of the drive motor 5 passes through the furnace chamber 2 and extends into the inside of the feeding chamber 4. A synchronous shaft 6 is fixedly connected to the output shaft of the drive motor 5. A synchronous plate 7 is fixedly connected to the synchronous shaft 6. A flue 8 is opened on the right side of the furnace chamber 2. A smoke pipe 9 is fixedly connected to the inner wall of the flue 8. The other end of the smoke pipe 9 passes through and extends to the bottom of the furnace arch body 3. A discharge chute 10 is opened at the bottom of the grate body 1. The discharge chute 10 is located at the bottom of the smoke pipe 9. An auxiliary component 11 is provided on the smoke pipe 9.

[0025] The auxiliary component 11 includes a filter baffle 1101, which is slidably connected inside the smoke tube 9. An extension plate 1102 is fixedly connected to both the front and back of the filter baffle 1101. The extension plate 1102 passes through and extends to the outside of the smoke tube 9. Two springs 1103 are fixedly connected to the bottom of the extension plate 1102. The bottom ends of the springs 1103 are fixedly connected to the smoke tube 9. A metal block 1104 is fixedly connected to the top of the extension plate 1102. An electromagnet 1105 is fixedly installed on the smoke tube 9. The electromagnet 1105 is located on top of the metal block 1104 and is magnetically connected to the metal block 1104.

[0026] The surface of the synchronization plate 7 is smooth. Both the front and back of the synchronization plate 7 are in contact with the inner wall of the feed chamber 4. The bottom of the furnace 2 is detachably connected to a heat exchange box 12. The heat exchange box 12 is equipped with a hot water pipe 13. Both ends of the hot water pipe 13 pass through and extend to the outside of the heat exchange box 12. The top and bottom of the extension plate 1102 are fixedly connected to a sealing plate 14. The sealing plate 14 and the outer wall of the flue 9 are slidably sealed.

[0027] The operator controls the operation of the drive motor 5, which drives the synchronous shaft 6 fixedly connected to it to rotate. This, in turn, causes multiple synchronous plates 7 to rotate on the inner wall of the feeding chamber 4. The synchronous plates 7 adhere to the inner wall of the feeding chamber 4, thus achieving a near-sealed state. The top of the grate body 1 can then burn the waste. The operator fills the feeding chamber 4 with waste through the notch on the left side of the furnace chamber 2. As the synchronous plates 7 rotate clockwise, the waste is poured onto the top of the grate body 1. The top of the grate body 1 is tilted, causing the waste to start burning and move to the right. As the synchronous plates 7 continue to rotate, an equal amount of waste moves from the feeding chamber 4 to the top of the grate body 1 for combustion. During combustion, the upward diffusion of heat is blocked and rebounded by the furnace arch body 3, allowing the high-temperature airflow and heat to return to the burning waste, improving combustion efficiency. The burned waste debris is discharged through the right end of the grate body 1, while the flue gas produced by combustion is blocked by the furnace arch body 3 and enters the flue pipe 9. It is then sent to the heat exchange box 1 through the flue 8. Inside the 2nd section, when the airflow enters the flue pipe 9, it passes through the filter baffle 1101. Impurities in the flue gas cannot penetrate the filter baffle 1101 and are drawn into the grate body 1 by gravity. The heat exchange tube is in a fully functional state with one end of the hot water exchange tube 13 inlet and the other end outlet. After being filtered, the flue gas is discharged into the heat exchange box 12 and comes into contact with the hot water exchange tube 13, thereby heating the water for subsequent use. Then the flue gas is discharged from the heat exchange box 12. In actual use, the electromagnet 1105 is set to... When the electromagnet 1105 stops working, it generates magnetism to attract the metal block 1104 at the bottom, causing the metal block 1104 to pull the extension plate 1102 upward. At this time, the sealing plate 14 and the filter baffle 1101 move upward as well, and the bottom spring 1103 begins to stretch. Then, the electromagnet 1105 is de-energized, causing the metal block 1104 to lose its magnetism. The spring 1103 begins to rebound and pulls the filter baffle 1101 downward. The filter baffle 1101 collides, causing the attached impurities to fall off, thus preventing clogging.

[0028] In this invention, the feeding chamber 4 and the rotating synchronous plate 7 can be used to seal the feeding chamber 4. Combined with the furnace arch body 3, this can reduce heat loss and improve the combustion efficiency of waste. At the same time, when adding waste, the synchronous plate 7 can directly guide the waste to the top of the grate body 1 for combustion, thereby improving the combustion quality in an equal and orderly manner. In addition, the self-cleaning filter baffle 1101 installed inside the flue 8 can prevent impurities from being discharged, and the hot water exchange pipe 13 installed at the end of the flue 9 can recover the heat of the discharged flue gas.

[0029] Please see Figure 4 The spring 1103 has a telescopic sleeve 15 inside, the top of the telescopic sleeve 15 is fixedly installed with the bottom of the extension plate 1102, and the bottom of the telescopic sleeve 15 is installed on the smoke pipe 9.

[0030] In this invention, the telescopic sleeve 15 can restrict the dust filter plate 1101 and the spring 1103, so that the dust filter plate 1101 always maintains stable vertical movement and avoids the spring 1103 from twisting and deforming.

[0031] Please see Figure 1 and 2 Among them, the right side of the heat exchange box 12 is detachably connected to a filter plate 16.

[0032] In this invention, when the flue gas is discharged from the heat exchange box 12, the filter plate 16 can filter and adsorb the flue gas, reducing the harm of the flue gas discharge to the environment.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A high-efficiency incinerator combining a grate and a grate, comprising a grate body (1) and a furnace chamber (2) mounted on top of it, characterized in that: A furnace arch body (3) is installed on the inner wall of the furnace chamber (2). The furnace arch body (3) is located at the top of the grate body (1). A feeding chamber (4) is opened inside the furnace chamber (2). A drive motor (5) is fixedly installed on the front of the furnace chamber (2). The output shaft of the drive motor (5) passes through the furnace chamber (2) and extends into the feeding chamber (4). A synchronous shaft (6) is fixedly connected to the output shaft of the drive motor (5). A synchronous plate (7) is fixedly connected to the synchronous shaft (6). A flue (8) is opened on the right side of the furnace chamber (2). A smoke pipe (9) is fixedly connected to the inner wall of the flue (8). The other end of the smoke pipe (9) passes through and extends to the bottom of the furnace arch body (3). A discharge trough (10) is opened at the bottom of the grate body (1). The discharge trough (10) is located at the bottom of the smoke pipe (9). An auxiliary component (11) is provided on the smoke pipe (9). The auxiliary component (11) includes a filter baffle (1101), which is slidably connected to the inside of the flue (9). An extension plate (1102) is fixedly connected to both the front and back of the filter baffle (1101). The extension plate (1102) extends through and to the outside of the flue (9). Two springs (1103) are fixedly connected to the bottom of the extension plate (1102). The bottom end of the springs (1103) is fixedly connected to the flue (9). A metal block (1104) is fixedly connected to the top of the extension plate (1102). An electromagnet (1105) is fixedly installed on the flue (9). The electromagnet (1105) is located on top of the metal block (1104) and is magnetically connected to the metal block (1104).

2. The high-efficiency incinerator combining furnace arch and grate as described in claim 1, characterized in that: The surface of the synchronization plate (7) is smooth, and both the front and back sides of the synchronization plate (7) are in contact with the inner wall of the feeding chamber (4).

3. The high-efficiency incinerator combining furnace arch and grate as described in claim 1, characterized in that: The bottom of the furnace (2) is detachably connected to a heat exchange box (12), and a hot water pipe (13) is installed inside the heat exchange box (12). Both ends of the hot water pipe (13) pass through and extend to the outside of the heat exchange box (12).

4. The high-efficiency incinerator combining furnace arch and grate as described in claim 1, characterized in that: The top and bottom of the extension plate (1102) are fixedly connected with sealing plates (14), and the sealing plates (14) are slidably sealed to the outer wall of the flue (9).

5. The high-efficiency incinerator combining furnace arch and grate as described in claim 1, characterized in that: The spring (1103) has a telescopic sleeve (15) inside. The top end of the telescopic sleeve (15) is fixedly installed with the bottom of the extension plate (1102), and the bottom end of the telescopic sleeve (15) is installed on the smoke pipe (9).

6. The high-efficiency incinerator combining furnace arch and grate as described in claim 3, characterized in that: A filter plate (16) is detachably connected to the right side of the heat exchange box (12).

Citation Information

Patent Citations

  • Furnace arch and fire grate combined efficient incinerator

    CN220707339U