Fuel staged combustion denitration device

Abstract

The utility model provides a fuel staged combustion denitration device, which belongs to the field of staged combustors and comprises a combustion bin, a furnace body, a feeding pipe, a flue gas bin, an air pipe and a scattering bin, the furnace body is fixedly connected to the top of the combustion bin, the feeding pipe is fixedly connected to the outer wall of the furnace body, the flue gas bin is arranged on the outer wall of the combustion bin, and the scattering bin is arranged in the furnace body. The air pipe is fixedly connected to the outer wall of the furnace body, the scattering bin is fixedly connected to the outer wall of the furnace body, a smashing assembly is arranged on the outer wall of the combustion bin, a screening assembly is arranged on the outer wall of the combustion bin, and the smashing assembly comprises a smashing bin, a conveying pipe, a funnel, a supporting plate, an inclined rod, a motor, a transmission belt and smashing rollers. According to the grading burner, after raw materials enter the smashing bin through the funnel, the motor can drive the smashing roller to rotate through the transmission belt by controlling operation of the motor, so that the raw materials are smashed, and the problem that an existing grading burner cannot process large-particle fuel is solved.

Description

Technical Field

[0001] This utility model relates to the field of staged burners, and more specifically, to a fuel staged combustion denitrification device. Background Technology

[0002] A staged burner is an advanced combustion device that optimizes combustion by dividing the combustion process into different stages (usually two or more stages). This type of burner is mainly used in large-scale combustion equipment such as industrial boilers and power plant boilers, aiming to effectively control pollutant generation while ensuring efficient combustion.

[0003] Current staged burners often encounter problems during operation due to the presence of large fuel particles. These larger fuel particles have greater mass and thermal inertia. This means that during combustion, the particles need to absorb more heat to reach their ignition temperature. Compared to smaller particles, the ignition process of larger fuel particles is delayed, leading to incomplete combustion and reduced combustion efficiency. Solving these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fuel staged combustion denitrification device, which aims to solve the problem that existing staged burners cannot process large particulate fuels.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a fuel grading combustion denitrification device, including a combustion chamber, a furnace body, a feed pipe, a flue gas chamber, an air duct, and a spreading chamber. The furnace body is fixedly connected to the top of the combustion chamber, the feed pipe is fixedly connected to the outer wall of the furnace body, the flue gas chamber is disposed on the outer wall of the combustion chamber, the air duct is fixedly connected to the outer wall of the furnace body, the spreading chamber is fixedly connected to the outer wall of the furnace body, a crushing component is disposed on the outer wall of the combustion chamber, and a screening component is disposed on the outer wall of the combustion chamber.

[0007] The crushing assembly includes a crushing chamber, a feeding pipe, a funnel, a support plate, an inclined rod, a motor, a transmission belt, and a crushing roller. The crushing chamber is located outside the combustion chamber. The feeding pipe is fixedly connected to the bottom of the crushing chamber. The funnel is fixedly connected to the top of the crushing chamber. The support plate is fixedly connected to the outer wall of the crushing chamber. The inclined rod is fixedly connected to the outer wall of the crushing chamber. The motor is fixedly connected to the top of the support plate. The transmission belt is located outside the crushing chamber. The crushing roller is installed inside the crushing chamber.

[0008] Preferably, the two ends of the conveying pipe are connected to the interior of the crushing chamber and the interior of the combustion chamber, respectively, and the end of the inclined rod away from the crushing chamber is fixedly connected to the bottom of the support plate.

[0009] By adopting the above technical solution, the raw materials that have been crushed inside the crushing chamber will be transported to the combustion chamber for combustion treatment through the conveying pipe. The diagonal bar can support the support plate and ensure the stability of the support plate.

[0010] Preferably, the outer wall of the drive pulley of the transmission belt is fixedly connected to the output shaft of the motor, the drive shaft of the crushing roller passes through the inner wall of the crushing chamber and extends to the outside of the crushing chamber, and the outer wall of the driven pulley of the transmission belt is fixedly connected to one end of the drive shaft of the crushing roller that extends to the outside of the crushing chamber.

[0011] By adopting the above technical solution, after the motor starts running, it can drive the transmission belt through the output shaft, so that the transmission belt drives the crushing roller to crush the raw materials inside the crushing chamber.

[0012] Preferably, the screening assembly includes a screening plate, a bent rod, a frame, a slide rail, a cam, and a discharge port. The screening plate is disposed inside the crushing chamber, the bent rod is disposed inside the crushing chamber, the frame is disposed on the outer wall of the crushing chamber, the slide rail is fixedly connected to the outer wall of the crushing chamber, the cam is fixedly connected to the outer wall of the motor output shaft, and the discharge port is opened on the outer wall of the crushing chamber.

[0013] Preferably, the outer wall of the screening plate is slidably connected to the inner wall of the crushing chamber, one end of the bent rod penetrates the inner wall of the crushing chamber and extends to the outside of the crushing chamber, and the outer wall of the bent rod is slidably connected to the inner wall of the crushing chamber through which it is penetrated.

[0014] By adopting the above technical solution, the screening plate can slide inside the crushing chamber, and the bent rod can slide inside the crushing chamber through which the crushing chamber is penetrated.

[0015] Preferably, one end of the bent rod located inside the crushing chamber is fixedly connected to the outer wall of the screening plate, and the bottom of the frame is fixedly connected to the top of the bent rod.

[0016] By adopting the above technical solution, the frame can be moved, thereby causing the bent rod to move.

[0017] Preferably, the outer wall of the frame is slidably connected to the outer wall of the slide rail, the outer wall of the cam is in contact with the inner wall of the frame, and the discharge port is on the same horizontal plane as the screening plate.

[0018] By adopting the above technical solution, when the cam rotates, it can push the frame to slide on the outer wall of the slide rail, and non-compliant raw materials will be discharged through the discharge port.

[0019] The beneficial effects of this utility model are:

[0020] 1. After the raw material enters the crushing chamber through the funnel, the operation of the motor can be controlled to drive the crushing roller to rotate through the transmission belt, thereby crushing the raw material and solving the problem that the existing staged burners cannot process large particulate fuel.

[0021] 2. The crushed raw materials will fall onto the surface of the screening plate. At the same time, when the motor is running, it will drive the cam to rotate through the output shaft. The cam drives the screening plate to reciprocate through the frame and bent rod, thereby screening the crushed raw materials and preventing some raw materials from being poorly crushed and entering the combustion chamber, which would lead to incomplete combustion of fuel and reduced combustion efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a fuel staged combustion denitrification device provided by an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the crushing chamber of a fuel staged combustion denitrification device provided by an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the screening plate structure of a fuel grading combustion denitrification device provided by an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the frame structure of a fuel staged combustion denitrification device provided by an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the cam structure of a fuel staged combustion denitrification device provided by an embodiment of this utility model.

[0028] In the diagram: 1. Combustion chamber; 2. Furnace body; 3. Feed pipe; 4. Flue gas chamber; 5. Air duct; 6. Feeding chamber; 7. Crushing assembly; 701. Crushing chamber; 702. Feeding pipe; 703. Funnel; 704. Support plate; 705. Inclined rod; 706. Motor; 707. Transmission belt; 708. Crushing roller; 8. Screening assembly; 801. Screening plate; 802. Bending rod; 803. Frame; 804. Slide rail; 805. Cam; 806. Discharge port. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Reference Figures 1-5 A fuel grading combustion denitrification device includes a combustion chamber 1, a furnace body 2, a feed pipe 3, a flue gas chamber 4, an air duct 5, and a feeding chamber 6. The furnace body 2 is fixedly connected to the top of the combustion chamber 1, the feed pipe 3 is fixedly connected to the outer wall of the furnace body 2, the flue gas chamber 4 is disposed on the outer wall of the combustion chamber 1, the air duct 5 is fixedly connected to the outer wall of the furnace body 2, the feeding chamber 6 is fixedly connected to the outer wall of the furnace body 2, a crushing component 7 is disposed on the outer wall of the combustion chamber 1, and a screening component 8 is disposed on the outer wall of the combustion chamber 1.

[0031] The crushing assembly 7 includes a crushing chamber 701, a conveying pipe 702, a funnel 703, a support plate 704, an inclined rod 705, a motor 706, a transmission belt 707, and a crushing roller 708. The crushing chamber 701 is located outside the combustion chamber 1. The conveying pipe 702 is fixedly connected to the bottom of the crushing chamber 701, and its two ends are respectively connected to the interior of the crushing chamber 701 and the interior of the combustion chamber 1. The raw materials crushed inside the crushing chamber 701 are conveyed to the interior of the combustion chamber 1 for combustion through the conveying pipe 702. The funnel 703 is fixedly connected to the top of the crushing chamber 701. The support plate 704 is fixedly connected to the outer wall of the crushing chamber 701. The inclined rod 705 is fixedly connected to the outer wall of the crushing chamber 701, and the end of the inclined rod 705 away from the crushing chamber 701 is fixedly connected to the bottom of the support plate 704. The diagonal brace 705 supports the support plate 704, ensuring its stability. The motor 706 is fixedly connected to the top of the support plate 704. The transmission belt 707 is located outside the crushing chamber 701. The outer wall of the drive wheel of the transmission belt 707 is fixedly connected to the output shaft of the motor 706. The crushing roller 708 is installed inside the crushing chamber 701. The drive shaft of the crushing roller 708 passes through the inner wall of the crushing chamber 701 and extends to the outside of the crushing chamber 701. The outer wall of the driven wheel of the transmission belt 707 is fixedly connected to the end of the drive shaft of the crushing roller 708 that extends to the outside of the crushing chamber 701. After the motor 706 runs, it can drive the transmission belt 707 through the output shaft, so that the transmission belt 707 drives the crushing roller 708 to crush the raw materials inside the crushing chamber 701.

[0032] After the raw material enters the crushing chamber 701 through the funnel 703, the operation of the motor 706 can be controlled to drive the crushing roller 708 to rotate through the transmission belt 707, thereby crushing the raw material and solving the problem that the existing staged burners cannot process large particulate fuel.

[0033] The screening assembly 8 includes a screening plate 801, a bent rod 802, a frame 803, a slide rail 804, a cam 805, and a discharge port 806. The screening plate 801 is disposed inside the crushing chamber 701, and its outer wall is slidably connected to the inner wall of the crushing chamber 701. The bent rod 802 is disposed inside the crushing chamber 701, with one end penetrating through the inner wall of the crushing chamber 701 and extending to the outside of the crushing chamber 701. The outer wall of the bent rod 802 is slidably connected to the penetrating inner wall of the crushing chamber 701. The screening plate 801 can slide inside the crushing chamber 701, and the bent rod 802 can slide inside the penetrating part of the crushing chamber 701. The bent rod 802 is located within the crushing chamber. One end of the crushing chamber 701 is fixedly connected to the outer wall of the screening plate 801. The frame 803 is set on the outer wall of the crushing chamber 701. The bottom of the frame 803 is fixedly connected to the top of the bent rod 802. The frame 803 can be moved to drive the bent rod 802 to move. The slide rail 804 is fixedly connected to the outer wall of the crushing chamber 701. The outer wall of the frame 803 is slidably connected to the outer wall of the slide rail 804. The cam 805 is fixedly connected to the outer wall of the output shaft of the motor 706. The outer wall of the cam 805 is in contact with the inner wall of the frame 803. The discharge port 806 is opened on the outer wall of the crushing chamber 701. The discharge port 806 is on the same horizontal plane as the screening plate 801.

[0034] The crushed raw materials fall onto the surface of the screening plate 801. At the same time, when the motor 706 is running, it drives the cam 805 to rotate through the output shaft. The cam 805 drives the screening plate 801 to reciprocate through the frame 803 and the bent rod 802, thereby screening the crushed raw materials and preventing some raw materials from being poorly crushed and entering the combustion chamber 1, which would lead to incomplete combustion of fuel and reduced combustion efficiency.

[0035] The working principle of this fuel grading combustion denitrification device is as follows: The raw material is conveyed to the inside of the crushing chamber 701 through the funnel 703, and the motor 706 is controlled to run. The motor 706 drives the cam 805 and the transmission belt 707 through the output shaft. When the transmission belt 707 runs, it drives the crushing roller 708 to rotate, thereby crushing the raw material. The crushed raw material falls onto the surface of the screening plate 801. When the cam 805 rotates, it pushes the bent rod 802 through the frame 803 to drive the screening plate 801 to move back and forth, and screens the raw material that falls onto the surface of the screening plate 801. The screened raw material enters the inside of the combustion chamber 1 through the conveying pipe 702, and denitrification work is carried out inside the combustion chamber 1 and the furnace body 2.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fuel staged combustion denitrification device, comprising a combustion chamber (1), a furnace body (2), a feed pipe (3), a flue gas chamber (4), an air duct (5), and a feeding chamber (6), wherein the furnace body (2) is fixedly connected to the top of the combustion chamber (1), the feed pipe (3) is fixedly connected to the outer wall of the furnace body (2), the flue gas chamber (4) is disposed on the outer wall of the combustion chamber (1), the air duct (5) is fixedly connected to the outer wall of the furnace body (2), and the feeding chamber (6) is fixedly connected to the outer wall of the furnace body (2), characterized in that: The outer wall of the combustion chamber (1) is provided with a crushing component (7) and a screening component (8); The crushing assembly (7) includes a crushing chamber (701), a feeding pipe (702), a funnel (703), a support plate (704), an inclined rod (705), a motor (706), a transmission belt (707), and a crushing roller (708). The crushing chamber (701) is located outside the combustion chamber (1). The feeding pipe (702) is fixedly connected to the bottom of the crushing chamber (701). The funnel (703) is fixedly connected to the top of the crushing chamber (701). The support plate (704) is fixedly connected to the outer wall of the crushing chamber (701). The inclined rod (705) is fixedly connected to the outer wall of the crushing chamber (701). The motor (706) is fixedly connected to the top of the support plate (704). The transmission belt (707) is located outside the crushing chamber (701). The crushing roller (708) is installed inside the crushing chamber (701).

2. The fuel staged combustion denitrification device according to claim 1, characterized in that: The two ends of the conveying pipe (702) are respectively connected to the interior of the crushing chamber (701) and the interior of the combustion chamber (1), and the end of the inclined rod (705) away from the crushing chamber (701) is fixedly connected to the bottom of the support plate (704).

3. The fuel staged combustion denitrification device according to claim 2, characterized in that: The outer wall of the drive wheel of the transmission belt (707) is fixedly connected to the output shaft of the motor (706). The drive shaft of the crushing roller (708) passes through the inner wall of the crushing chamber (701) and extends to the outside of the crushing chamber (701). The outer wall of the driven wheel of the transmission belt (707) is fixedly connected to one end of the drive shaft of the crushing roller (708) extending to the outside of the crushing chamber (701).

4. The fuel staged combustion denitrification device according to claim 1, characterized in that: The screening assembly (8) includes a screening plate (801), a bent rod (802), a frame (803), a slide rail (804), a cam (805), and a discharge port (806). The screening plate (801) is disposed inside the crushing chamber (701), the bent rod (802) is disposed inside the crushing chamber (701), the frame (803) is disposed on the outer wall of the crushing chamber (701), the slide rail (804) is fixedly connected to the outer wall of the crushing chamber (701), the cam (805) is fixedly connected to the outer wall of the output shaft of the motor (706), and the discharge port (806) is opened on the outer wall of the crushing chamber (701).

5. The fuel staged combustion denitrification device according to claim 4, characterized in that: The outer wall of the screening plate (801) is slidably connected to the inner wall of the crushing chamber (701). One end of the bent rod (802) penetrates the inner wall of the crushing chamber (701) and extends to the outside of the crushing chamber (701). The outer wall of the bent rod (802) is slidably connected to the inner wall of the crushing chamber (701) through which it is penetrated.

6. A fuel staged combustion denitrification device according to claim 5, characterized in that: One end of the bent rod (802) located inside the crushing chamber (701) is fixedly connected to the outer wall of the screening plate (801), and the bottom of the frame (803) is fixedly connected to the top of the bent rod (802).

7. A fuel staged combustion denitrification device according to claim 6, characterized in that: The outer wall of the frame (803) is slidably connected to the outer wall of the slide rail (804), the outer wall of the cam (805) is in contact with the inner wall of the frame (803), and the discharge port (806) is on the same horizontal plane as the screening plate (801).

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