Steam heat tracing SCR (Selective Catalytic Reduction) denitration equipment

Abstract

The utility model discloses steam heat tracing SCR (Selective Catalytic Reduction) denitration equipment, which comprises a reaction cavity and a connecting cavity, one end of the connecting cavity is fixedly communicated with the reaction cavity, an adjusting part is arranged on the connecting cavity, the adjusting part comprises two rotating rods, a moving plate, a baffle plate and a spraying cavity, the two rotating rods are rotationally connected in the connecting cavity, and the moving plate is fixedly connected in the connecting cavity. The two ends of the rotating rod are provided with insections correspondingly, and the moving plate is arranged in an L shape and is in sliding connection with one side wall of the connecting cavity. The two rotating rods can be driven to rotate anticlockwise along with the right movement of the moving plate, and the two baffles in the vertical state are driven to incline, so that the upward flowing smoke in the connecting cavity is blocked, the flowing speed of the smoke can be slowed down, the contact with ammonia water sprayed out of the spraying cavity is increased, and better mixing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration, in particular to an SCR denitration device with steam tracing. Background Art

[0002] At home and abroad, a large number of studies have been carried out on the problem of flue gas denitration. There are more than a dozen types that can be used industrially. Flue gas denitration equipment can prevent environmental pollution and is generally divided into pre-combustion denitration, in-combustion denitration, and post-combustion denitration.

[0003] In the process of treating flue gas denitration in the prior art, the flue gas discharged from the outside contains more harmful gases, which causes certain pollution to the environment. Before entering the reaction chamber for denitration, ammonia water treatment needs to be sprayed on the smoke. Since the flow rate of the smoke is relatively fast when entering the reaction chamber for denitration, the contact with ammonia water is insufficient, resulting in poor treatment effect on the harmful substances in the smoke and low working efficiency of the smoke denitration. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art, and to propose an SCR denitration device with steam tracing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An SCR denitration device with steam tracing includes a reaction chamber and a connection chamber. One end of the connection chamber is fixedly communicated with the reaction chamber; an adjusting component is installed on the connection chamber. The adjusting component includes a rotating rod, a moving plate, a baffle, and a spraying chamber. Both rotating rods are rotatably connected in the connection chamber. Tooth patterns are respectively provided at both ends of the rotating rod. The moving plate is L-shaped and is slidably connected to one side wall of the connection chamber. A groove is provided at one end of the moving plate. A spring is fixedly connected between the upper surface of the moving plate and the connection chamber. The upper surface of the moving plate is meshed with the rotating rod. The two baffles are respectively fixedly connected to the rotating rod and are located in the groove. The spraying chamber is fixedly connected in the connection chamber. A plurality of atomizing nozzles are provided on the upper surface of the spraying chamber.

[0007] In order to better achieve the above purpose, the utility model adopts a further technical scheme: the adjusting component further includes a rotating shaft. An air inlet chamber is fixedly communicated with the connection chamber. The rotating shaft is rotatably connected to the upper end of the air inlet chamber. A cam is fixedly connected to the rotating shaft. One end surface of the moving plate away from the connection chamber is inclined. The cam is arranged below the moving plate.

[0008] To better achieve the above object, the present utility model adopts the following further technical solution: A cylinder is fixedly communicated with the lower end of the air inlet cavity. An installation cavity is fixedly communicated with one side of the cylinder. A support rod is rotatably connected in the installation cavity. A plurality of fan blades are annularly and arrayedly installed on the support rod. A transmission belt is sleeved between one end of the support rod and the rotating shaft.

[0009] The advantages of the present utility model are as follows: When the cam rotates with the rotating shaft, it can contact the inclined surface at one end of the moving plate and squeeze the moving plate to move to the right. As the moving plate moves to the right, it can drive the two rotating rods to rotate counterclockwise and drive the two vertically arranged baffles to incline, thereby blocking the upward flowing smoke in the connection cavity, slowing down the flow rate of the smoke, increasing the contact with the ammonia water sprayed from the spraying cavity, and achieving better mixing. Description of the Drawings

[0010] Figure 1 is a front structural schematic diagram of an SCR denitration device with steam tracing proposed by the present utility model;

[0011] Figure 2 is a baffle structural schematic diagram of an SCR denitration device with steam tracing proposed by the present utility model;

[0012] Figure 3 is a fan blade structural schematic diagram of an SCR denitration device with steam tracing proposed by the present utility model.

[0013] In the figure: 1 reaction cavity, 2 spraying cavity, 3 connection cavity, 4 spring, 5 moving plate, 6 cam, 7 air inlet cavity, 8 rotating shaft, 9 transmission belt, 10 cylinder, 11 installation cavity, 12 rotating rod, 13 baffle, 14 fan blade, 15 support rod. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0015] Refer to Figures 1 - 3As shown in the figure, a steam-assisted SCR denitration device includes a reaction chamber 1 and a connection chamber 3. One end of the connection chamber 3 is fixedly connected to the reaction chamber 1. An adjustment component is installed on the connection chamber 3. The adjustment component includes a rotating rod 12, a moving plate 5, a baffle 13, and a spraying chamber 2. Both rotating rods 12 are rotatably connected in the connection chamber 3. Tooth patterns are respectively provided at both ends of the rotating rod 12. The moving plate 5 is L-shaped and is slidably connected to one side wall of the connection chamber 3. A groove is provided at one end of the moving plate 5. A spring 4 is fixedly connected between the upper surface of the moving plate 5 and the connection chamber 3. The upper surface of the moving plate 5 is meshed with the rotating rod 12. When the moving plate 5 moves, it can drive the rotating rod 12 to rotate. Two baffles 13 are respectively fixedly connected to the rotating rod 12 and are located in the groove. When the two rotating rods 12 rotate, the vertically placed baffle 13 can be driven to a vertical state, thereby increasing the obstruction to the smoke in the connection chamber 3 to a certain extent, so as to slow down the flow rate of the smoke. The spraying chamber 2 is fixedly connected in the connection chamber 3. A plurality of atomizing nozzles are provided on the upper surface of the spraying chamber 2. The adjustment component further includes a rotating shaft 8. An air inlet chamber 7 is fixedly connected to the connection chamber 3. The rotating shaft 8 is rotatably connected to the upper end of the air inlet chamber 7. A cam 6 is fixedly connected to the rotating shaft 8. The end surface of the moving plate 5 away from the connection chamber 3 is inclined. The cam 6 is arranged below the moving plate 5. When the cam 6 rotates, it can contact the inclined surface of the moving plate 5.

[0016] The lower end of the air inlet chamber 7 is fixedly connected to a cylinder 10. One side of the cylinder 10 is fixedly connected to an installation chamber 11. A support rod 15 is rotatably connected in the installation chamber 11. A plurality of fan blades 14 are annularly arranged on the support rod 15. When the steam flows through the cylinder 10, it can push the fan blades 14 located outside the installation chamber 11. A transmission belt 9 is sleeved between one end of the support rod 15 and the rotating shaft 8.

[0017] When the utility model is in use, firstly, external smoke enters the connection cavity 3 through the air inlet cavity 7 and is transported to the reaction cavity 1 for denitrification. Then, external steam enters the reaction cavity 1 through the cylinder 10, the air inlet cavity 7 and the connection cavity 3, which can raise the overall temperature of the reaction cavity 1. The spraying cavity 2 is connected to an external ammonia water storage device, and external ammonia water will be sprayed into the connection cavity 3 through the spraying cavity 2 and the atomizing nozzles to be mixed with the smoke passing through the connection cavity 3. The steam has a certain air pressure and can push the fan blade 14 when passing through the cylinder 10, and drive the support rod 15 to rotate. The support rod 15 can drive the rotating shaft 8 to rotate through the transmission belt 9. When the cam 6 rotates with the rotating shaft 8, it can contact the inclined surface at one end of the moving plate 5 and squeeze the moving plate 5 to move to the right, while compressing the spring 4. As the moving plate 5 moves to the right, it can drive the two rotating rods 12 to rotate counterclockwise, and drive the two vertically arranged baffles 13 to incline, so as to block the upward flowing smoke in the connection cavity 3, slow down the flow rate of the smoke, increase the contact with the ammonia water sprayed from the spraying cavity 2, and achieve better mixing. When the cam 6 continues to rotate with the rotating shaft 8 and moves away from the moving plate 5, the moving plate 5 moves back under the elastic force of the spring 4 and drives the rotating rod 12 to rotate clockwise, so as to rotate the inclined baffle 13 to the vertical state and reset, and no longer block the smoke. The smoke fully mixed with ammonia water can flow into the reaction cavity 1 for desulfurization. As the moving plate 5 moves continuously, the smoke can flow into the reaction cavity 1 for denitrification after being fully mixed with ammonia water, and the denitrification efficiency can be improved.

Claims

1. A steam-heated SCR denitration device, comprising a reaction chamber (1) and a connecting chamber (3), characterized in that: One end of the connecting chamber (3) is fixedly connected to the reaction chamber (1); an adjusting component is installed on the connecting chamber (3), and the adjusting component comprises a rotating rod (12), a movable plate (5), a baffle (13), and a spray chamber (2); the two rotating rods (12) are both rotatably connected in the connecting chamber (3); teeth are respectively provided at both ends of the rotating rod (12); the movable plate (5) is arranged in an L shape and is slidably connected to one side wall of the connecting chamber (3); a groove is provided at one end of the movable plate (5); a spring (4) is fixedly connected between the upper surface of the movable plate (5) and the connecting chamber (3); the upper surface of the movable plate (5) is meshedly connected to the rotating rod (12); the two baffles (13) are respectively fixedly connected to the rotating rod (12) and are located in the groove; the spray chamber (2) is fixedly connected in the connecting chamber (3); and a plurality of atomizing nozzles are provided on the upper surface of the spray chamber (2).

2. The steam-heated SCR denitration equipment according to claim 1, characterized in that The adjusting component further comprises a rotating shaft (8), the connecting chamber (3) is fixedly connected to an air inlet chamber (7), the rotating shaft (8) is rotatably connected to the upper end of the air inlet chamber (7), a cam (6) is fixedly connected to the rotating shaft (8), an end surface of the movable plate (5) away from the connecting chamber (3) is arranged in an inclined manner, and the cam (6) is arranged on the lower side of the movable plate (5).

3. The steam-heated SCR denitration equipment according to claim 2, characterized in that: The lower end of the air inlet cavity (7) is fixedly connected to a cylinder (10), one side of the cylinder (10) is fixedly connected to a mounting cavity (11), a support rod (15) is rotatably connected in the mounting cavity (11), fan blades (14) are mounted on the support rod (15) in an annular array, and a transmission belt (9) is sleeved between one end of the support rod (15) and the rotating shaft (8).

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