Jet structure and uniform distribution device

Abstract

The embodiment of the utility model provides an injection structure and a uniform distribution device, and relates to the technical field of flue gas desulfurization. The spraying structure and the uniform distribution device comprise a desulfurization tower, a spraying mechanism is installed at the upper end in the desulfurization tower, the spraying mechanism comprises an annular cylinder rotationally arranged at the upper end of the desulfurization tower, a first spraying pipe and a second spraying pipe are arranged in the annular cylinder in a crossed mode, and the first spraying pipe and the second spraying pipe are each provided with a plurality of spraying heads. According to the utility model, the annular cylinder is mounted at the upper end of the desulfurizing tower, so that when the driving wheel is meshed with the gear ring, the injection pipe I and the injection pipe II rotate, the spray head can comprehensively spray a desulfurizing agent to each part in the desulfurizing tower, and meanwhile, the desulfurizing agent is conveyed into the injection pipe I and the injection pipe II through the pneumatic conveyor; and the desulfurizer is sprayed into the desulfurization tower by the spray head to promote full fusion of the desulfurizer and the flue gas.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to an injection structure and a uniform distribution device. Background Art

[0002] When desulfurizing and denitrifying the flue gas at the tail of a submerged arc furnace, most of the time, SDS dry desulfurization technology is used. A high-efficiency desulfurizer is sprayed into the main flue through the SDS dry deacidification injection and uniform distribution device, and is thermally activated in the flue, fully in contact with the flue gas, and undergoes physical and chemical reactions, so that acidic substances such as sulfur dioxide in the flue gas are absorbed and purified.

[0003] Chinese patent application number: CN202220501947.0 discloses a multi-stage injection device for SDS dry desulfurization, including a desulfurizer grinding and conveying mechanism and a desulfurization tower connected in sequence, an injection device is fixedly arranged on the top of the desulfurization tower, the injection device includes a primary injection device and a secondary injection device arranged in sequence along the flue gas conveying direction, the primary injection device and the secondary injection device are connected to the desulfurizer grinding and conveying mechanism, the secondary injection device is fixedly arranged in the desulfurization tower, the secondary injection device includes a lifting mechanism and an injection mechanism, the lifting mechanism is arranged along the height direction of the desulfurization tower, the lifting mechanism drives the injection mechanism to reciprocate along the height direction of the desulfurization tower, the utility model has the effect of improving the desulfurization efficiency and the desulfurization quality.

[0004] In order to improve the efficiency of desulfurization in the prior art, the injection mechanism is set to a mechanism that reciprocates up and down. Although this movement method can improve the desulfurization effect to a certain extent, since the injection mechanism can only move up and down, it is not convenient to adjust the injection angle, so that the range of the injected desulfurizer is fixed, so that the desulfurizer cannot be sprayed on other parts of the desulfurization tower, and the flue gas floats in all directions in the desulfurization tower, thus affecting the fusion effect of the flue gas and the desulfurizer. Utility Model Content

[0005] The utility model aims to provide a spraying structure and a uniform distribution device, which can avoid the situation that the spraying mechanism can only move up and down, which makes it inconvenient to adjust the spraying angle, so that the range of the sprayed desulfurizer is fixed, so that other parts of the desulfurization tower cannot be sprayed with the desulfurizer. For this purpose, an spraying structure and a uniform distribution device are proposed.

[0006] To achieve the above-mentioned objectives, on the one hand, the present application provides an injection structure, including a desulfurization tower, wherein an injection mechanism is installed at the upper end of the desulfurization tower, and the injection mechanism includes an annular cylinder rotatably arranged at the upper end of the desulfurization tower, and injection pipe one and injection pipe two are cross-arranged in the annular cylinder, and multiple nozzles are provided on injection pipe one and injection pipe two.

[0007] In a specific embodiment, a mounting frame is provided on the bottom plate of one side of the desulfurization tower, a grinding box is provided on the upper side of the mounting frame, a pneumatic conveyor is installed at the discharge port on the lower side of the grinding box, and the discharge port of the pneumatic conveyor is connected to the feed port of the pipeline.

[0008] In a specific embodiment, the outlet of the pipeline is connected to the feed inlet of the diverter pipe, and the two outlets of the diverter pipe are connected to the feed inlets of the injection pipe 1 and the injection pipe 2 respectively.

[0009] In a specific embodiment, a support rod is provided outside the desulfurization tower, and a sealing cover is connected to the upper end of the support rod, and the sealing cover is located on the upper side of the desulfurization tower.

[0010] In a specific embodiment, on the other hand, the present application also provides a uniform distribution device of the injection structure, including a lower annular edge arranged on the lower side of the annular cylinder, an annular groove is opened at the upper end of the desulfurization tower, and the lower annular edge is located in the annular groove and is rotatably connected to the annular groove.

[0011] In a specific embodiment, a gear ring is provided on the outer side of the annular cylinder, a driving wheel is rotatably provided on one side of the support rod, a rotating shaft of the driving wheel is connected to an output shaft of a motor, and the driving wheel is meshed with the gear ring.

[0012] In a specific embodiment, an upper annular edge is provided on the upper side of the annular cylinder, and the upper annular edge is rotatably connected to a rotation groove provided on the lower side of the sealing cover.

[0013] In a specific embodiment, a bend is provided at the center of the injection pipe 1 and the injection pipe 2.

[0014] In a specific embodiment, both ends of the injection pipe 1 and the injection pipe 2 are rotatably connected to the annular cylinder respectively, and the rotating shaft connected to one end of the injection pipe 1 and the injection pipe 2 is connected to the output shaft of the forward and reverse motor.

[0015] In a specific embodiment, the maximum rotation angle of the injection tube 1 and the injection tube 2 is 90 degrees in both directions.

[0016] Compared with the prior art, the spray structure and uniform distribution device provided in the embodiment of the utility model have the following advantages:

[0017] 1. The utility model installs an annular cylinder at the upper end of the desulfurization tower, so that when the driving wheel and the gear ring are meshed, the injection pipe 1 and the injection pipe 2 are rotated, so that the nozzle can fully spray the desulfurizer on various parts inside the desulfurization tower. At the same time, the desulfurizer is transported to the injection pipe 1 and the injection pipe 2 by the pneumatic conveyor, and sprayed into the desulfurization tower by the nozzle, so as to promote the full fusion of the desulfurizer and the flue gas.

[0018] 2. The utility model tilts the injection pipe 1 and the injection pipe 2 to a certain degree under the drive of the forward and reverse motor through the rotating shaft, thereby compensating for the position where the injection pipe 1 and the injection pipe 2 are not convenient for injection when rotating, and improves the reaction effect of the desulfurizer and the flue gas by changing the injection angle of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 3 It is a partial cross-sectional view of the desulfurization tower structure of an embodiment of the utility model;

[0023] Figure 4 This is a structural breakdown diagram of a desulfurization tower and an injection mechanism according to an embodiment of the utility model;

[0024] Figure 5 This is a cross-sectional view of the injection mechanism structure of an embodiment of the utility model.

[0025] icon:

[0026] 1. Mounting frame; 2. Grinding box; 3. Pneumatic conveyor; 4. Pipeline; 5. Desulfurization tower; 51. Support rod; 52. Sealing cover; 53. Annular groove; 6. Injection mechanism; 61. Annular cylinder; 62. Gear ring; 63. Upper annular edge; 64. Injection pipe 1; 65. Injection pipe 2; 66. Nozzle; 67. Lower annular edge; 68. Driving wheel; 69. Bend pipe; 7. Diverter pipe. DETAILED DESCRIPTION

[0027] In order to improve the efficiency of desulfurization in the prior art, the injection mechanism is set as a mechanism that reciprocates up and down. Although this movement mode can improve the desulfurization effect to a certain extent, since the injection mechanism can only move up and down, it is not convenient to adjust the injection angle, so that the range of the injected desulfurizer is fixed, so that other parts of the desulfurization tower cannot be sprayed with the desulfurizer, and the flue gas is drifting in all directions in the desulfurization tower, thus affecting the fusion effect of the flue gas and the desulfurizer. Therefore, after research, a spray structure and a uniform distribution device are provided. When in use, by installing an annular cylinder at the upper end of the desulfurization tower, when the driving wheel and the gear ring are engaged, the injection pipe one and the injection pipe two are rotated, so that the nozzle can fully spray the desulfurizer on various parts inside the desulfurization tower. At the same time, the desulfurizer is transported to the injection pipe one and the injection pipe two by a pneumatic conveyor, and sprayed in the desulfurization tower by the nozzle, promoting the full fusion of the desulfurizer and the flue gas, thereby solving the above defects.

[0028] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] Please refer to Figures 1 to 5 The embodiment of the utility model provides an injection structure and a uniform distribution device, including a desulfurization tower 5, wherein an injection mechanism 6 is installed at the upper end of the desulfurization tower 5, and the injection mechanism 6 includes an annular cylinder 61 rotatably arranged at the upper end of the desulfurization tower 5, and an injection pipe 1 64 and an injection pipe 2 65 are cross-arranged in the annular cylinder 61, and the annular cylinder 61 installs the injection pipe 1 64 and the injection pipe 2 65, and a plurality of nozzles 66 are arranged on the injection pipe 1 64 and the injection pipe 2 65, and the uniform distribution of the plurality of nozzles 66 ensures the uniform injection of the desulfurizer.

[0030] Among them, a bottom plate is provided on the lower side of the desulfurization tower 5, and a mounting frame 1 is provided on the bottom plate located on one side of the desulfurization tower 5. A grinding box 2 is provided on the upper side of the mounting frame 1. The grinding box 2 is used to grind the desulfurizer. A pneumatic conveyor 3 is installed at the discharge port on the lower side of the grinding box 2. The grinding box 2 has a certain height, and the discharge port of the grinding box 2 corresponds to the feed port of the pneumatic conveyor 3. The discharge port of the pneumatic conveyor 3 is connected with the feed port of the pipeline 4, so that the ground desulfurizer enters the pneumatic conveyor 3 and is transported to the pipeline 4.

[0031] The discharge port of the pipeline 4 is rotatably connected to the feed port of the diverter pipe 7. The two discharge ports of the diverter pipe 7 are respectively connected to the feed ports of the injection pipe 1 64 and the injection pipe 2 65. The diverter pipe 7 transports the desulfurizer powder to the injection pipe 1 64 and the injection pipe 2 65 respectively, and the nozzle 66 sprays it into the desulfurization tower 5, so that the desulfurizer and the flue gas are fused and reacted.

[0032] At the same time, a support rod 51 is provided on the outside of the desulfurization tower 5, and a sealing cover 52 is connected to the upper end of the support rod 51. The sealing cover 52 is located on the upper side of the desulfurization tower 5. The sealing cover 52 seals the desulfurization tower 5. At the same time, an exhaust port is opened on the sealing cover 52 (not shown in the figure), and a flue gas inlet is opened on the lower side of the desulfurization tower 5.

[0033] From the above, it can be known that the injection mechanism 6 is composed of the grinding box 2, the pneumatic conveyor 3, the pipeline 4, the diversion pipe 7, the injection pipe 1 64, the injection pipe 2 65 and the nozzle 66.

[0034] On the other hand, the present application also provides a uniform distribution device of the injection structure, including: a lower annular edge 67 arranged on the lower side of the annular cylinder 61, and an annular groove 53 is opened at the upper end of the desulfurization tower 5. Since the lower annular edge 67 is located in the annular groove 53 and is rotatably connected to the annular groove 53, when the annular cylinder 61 rotates, the injection pipe 1 64 and the injection pipe 2 65 can be rotated, so that the nozzle 66 can be fully sprayed in the desulfurization tower 5, thereby realizing uniform spraying of the nozzle 66.

[0035] A gear ring 62 is provided on the outside of the annular cylinder 61, and a driving wheel 68 is rotatably provided on one side of the support rod 51. The rotating shaft of the driving wheel 68 is connected to the output shaft of the motor. When the driving wheel 68 rotates, the driving wheel 68 is meshed with the gear ring 62, and then the gear ring 62 automatically rotates with the annular cylinder 61, thereby changing the spraying position of the nozzle 66 and expanding the spraying area.

[0036] Furthermore, an upper annular edge 63 is provided on the upper side of the annular cylinder 61 , and the upper annular edge 63 is rotatably connected to a rotation groove provided on the lower side of the sealing cover 52 , which can not only ensure the stable rotation of the annular cylinder 61 , but also improve the sealing performance of the desulfurization tower 5 .

[0037] Furthermore, both ends of the spray pipe 1 64 and the spray pipe 2 65 are rotatably connected to the annular tube 61 respectively, and the rotating shaft connected to one end of the spray pipe 1 64 and the spray pipe 2 65 is connected to the output shaft of the forward and reverse motor. Driven by the reverse reverse motor, the spray pipe 1 64 and the spray pipe 2 65 can be rotated at forward and reverse angles, thereby compensating for the position that the nozzle 66 cannot reach by rotating.

[0038] In addition, a bend pipe 69 is provided at the center of the injection pipe 1 64 and the injection pipe 2 65. The setting of the bend pipe 69 does not affect the rotation of the injection pipe 1 64 and the injection pipe 2 65. At the same time, the diverter pipe 7 has a sufficient length for the rotation of the injection pipe 1 64 and the injection pipe 2 65.

[0039] The maximum rotation angle of the injection pipe 1 64 and the injection pipe 2 65 is set to 90 degrees in both directions to prevent the injection pipe 1 64 and the injection pipe 2 65 from being affected by the shunt pipe 7 during rotation and causing the shunt pipe 7 to break due to entanglement.

[0040] In summary, the spraying structure and uniform distribution device of the embodiment of the utility model has the following working principle: the desulfurizer ground in the grinding box 2 enters the pneumatic conveyor 3, and the pneumatic conveyor 3 conveys the desulfurizer to the spray pipe 1 64 and the spray pipe 2 65 through the pipeline 4 and the diversion pipe 7 respectively. When the driving wheel 68 and the gear ring 62 rotate, the annular cylinder 61 rotates with the spray pipe 1 64, the spray pipe 2 65 and the diversion pipe 7 to achieve comprehensive spraying. At the same time, the spray pipe 1 64 and the spray pipe 2 65 can also rotate on their own to adjust the spray angle.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection structure, comprising a desulfurization tower (5), characterized in that: An injection mechanism (6) is installed at the upper end of the desulfurization tower (5), and the injection mechanism (6) includes an annular cylinder (61) rotatably arranged at the upper end of the desulfurization tower (5), and an injection pipe 1 (64) and an injection pipe 2 (65) are cross-arranged in the annular cylinder (61), and a plurality of nozzles (66) are provided on each of the injection pipe 1 (64) and the injection pipe 2 (65).

2. The injection structure according to claim 1, characterized in that: A mounting frame (1) is provided on the bottom plate of one side of the desulfurization tower (5), a grinding box (2) is provided on the upper side of the mounting frame (1), a pneumatic conveyor (3) is installed at the discharge port on the lower side of the grinding box (2), and the discharge port of the pneumatic conveyor (3) is connected to the feed port of the pipeline (4).

3. The injection structure according to claim 2, characterized in that: The outlet of the pipeline (4) is connected to the feed port of the diverter pipe (7), and the two outlets of the diverter pipe (7) are respectively connected to the feed ports of the injection pipe 1 (64) and the injection pipe 2 (65).

4. The injection structure according to claim 3, characterized in that: A support rod (51) is provided outside the desulfurization tower (5), and a sealing cover (52) is connected to the upper end of the support rod (51). The sealing cover (52) is located on the upper side of the desulfurization tower (5).

5. A uniform distribution device for realizing the spray structure according to any one of claims 1 to 4, characterized in that: It comprises a lower annular edge (67) arranged at the lower side of the annular cylinder (61); an annular groove (53) is provided at the upper end of the desulfurization tower (5); the lower annular edge (67) is located in the annular groove (53) and is rotatably connected to the annular groove (53).

6. The uniform distribution device according to claim 4, characterized in that: A gear ring (62) is provided on the outer side of the annular cylinder (61), and a driving wheel (68) is rotatably provided on one side of the support rod (51). The rotating shaft of the driving wheel (68) is connected to the output shaft of the motor, and the driving wheel (68) is meshed with the gear ring (62).

7. The uniform distribution device according to claim 6, characterized in that: An upper annular edge (63) is provided on the upper side of the annular cylinder (61), and the upper annular edge (63) is rotatably connected to a rotation groove provided on the lower side of the sealing cover (52).

8. The uniform distribution device according to claim 7, characterized in that: A curved pipe (69) is provided at the center of each of the injection pipes 1 (64) and 2 (65).

9. The uniform distribution device according to claim 8, characterized in that: The two ends of the spray pipe 1 (64) and the spray pipe 2 (65) are respectively rotatably connected to the annular cylinder (61), and the rotating shaft connected to one end of the spray pipe 1 (64) and the spray pipe 2 (65) is connected to the output shaft of the forward and reverse motor.

10. The uniform distribution device according to claim 9, characterized in that: The maximum rotation angle of the injection pipe 1 (64) and the injection pipe 2 (65) is 90 degrees in both directions.

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