Reactor inlet flue gas uniform distribution device for calcium-based particle desulfurizer

Abstract

The utility model discloses a reactor inlet flue gas uniform distribution device for calcium-based particle desulfurizer, which comprises a reactor shell and a driving motor, the axis of the top of the reactor shell is communicated with a feed pipe, and a frustum shell is fixed inside the reactor shell through bolts. Vent holes distributed at equal intervals are formed in the inner wall of the frustum shell in a penetrating mode, the inner wall of the bottom of the frustum shell is communicated with a discharging pipe, the inner wall of one side of the top of the reactor shell is communicated with a smoke discharging pipeline, and the two ends of the inner wall of the bottom of the reactor shell are both communicated with rectangular smoke inlet pipes; the rectangular smoke inlet pipes on the two sides are arranged at the bottom of the reactor shell to convey smoke, and after the smoke enters the reactor shell, the servo motor is used for driving the limiting clamping plate to continuously swing in a reciprocating manner, so that the spoiler can be driven to continuously swing, the sulfur-containing smoke can be effectively and uniformly conveyed into the cavity at the bottom of the reactor shell, and the sulfur-containing smoke can be uniformly conveyed into the cavity at the bottom of the reactor shell. And the condition of uniform distribution of flue gas is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a flue gas uniform distribution device at an inlet of a reactor for a calcium-based granular desulfurizer. Background Art

[0002] SO2 is one of the main pollutants in the atmosphere, causing chemical smog and acid rain, which harms the ecological environment and human health. Since most industrial furnaces in my country use coal as fuel, they have become major emitters of SO2.

[0003] Since the 1980s, in the traditional dry or semi-dry desulfurization process technology, engineers and technicians have found that under appropriate reaction conditions, a fixed bed reactor formed by a calcium-based granular desulfurizer prepared with Ca(OH)2 as the main component can remove low-concentration SO2 in flue gas, and this technology has been developed to a certain extent. If the flue gas flow field in the fixed bed reactor loaded with calcium-based granular desulfurizer is unevenly distributed, it may lead to uneven temperature distribution in the reactor, resulting in problems such as increased wear of the calcium-based granular desulfurizer, low desulfurization efficiency, and large amount of calcium-based granular desulfurizer. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a flue gas uniform distribution device for a reactor inlet for a calcium-based particle desulfurizer.

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

[0006] A flue gas distribution device at the inlet of a reactor for a calcium-based granular desulfurizer comprises a reactor shell and a driving motor, wherein a feed pipe is connected to the top axis of the reactor shell, and a frustum shell is fixed to the inside of the reactor shell by bolts, the inner wall of the frustum shell is penetrated with equidistantly distributed air holes, and the bottom inner wall of the frustum shell is connected with a discharge pipe, the inner wall of one side of the top of the reactor shell is connected with a smoke exhaust pipe, both ends of the bottom inner wall of the reactor shell are connected with a rectangular smoke inlet pipe, and the outer wall of the end of the rectangular smoke inlet pipe is fixed with a fixed frame by bolts, the inner wall of the fixed frame is rotatably mounted with equidistantly distributed spoilers, the top of the spoiler is provided with a slot, a first support ring is welded to the middle outer wall of the discharge pipe, and a second support ring is welded to the inner wall of the reactor shell, a linkage ring is sleeved on the top of the first support ring, and toggle plates with equidistant distribution are welded to the side of the linkage ring.

[0007] As a further solution of the utility model: a linkage bracket is fixedly connected to the inner wall of the clamping slot, and a fixing rod is welded at the top center of the linkage bracket.

[0008] As a further solution of the present utility model: A limit card board is inserted in the middle of the fixed rod, and a servo motor is connected to the top of the limit card board.

[0009] As a further solution of the present utility model: The height of the outer wall at the top of the first support ring and the height of the outer wall at the top of the second support ring are on the same horizontal plane.

[0010] As a further solution of the present utility model: A toothed ring is welded to the outer wall at the bottom of the linkage ring, and a driving gear is meshed and driven on one side outer wall of the toothed ring, and a driving motor is welded to the bottom center of the driving gear.

[0011] As a further solution of the present utility model: Both the servo motor and the driving motor are connected to a PLC controller through wires, and the PLC controller is connected to an external power supply through wires.

[0012] As a further solution of the present utility model: A dust-proof filter screen is clamped and arranged on the inner wall of the rectangular smoke inlet pipe, and the size of the dust-proof filter screen is adapted to the size of the inner wall of the rectangular smoke inlet pipe.

[0013] As a further solution of the present utility model: The spoiler swings along an inclined direction, and the swing angle of the spoiler is 0° - 80°.

[0014] Compared with the prior art, the present utility model provides a device for evenly distributing inlet flue gas of a reactor for calcium-based granular desulfurizer, and has the following beneficial effects:

[0015] 1. For the flue gas distribution device of the reactor in this design, the flue gas is transported through two rectangular flue gas inlet pipes arranged at the bottom of the reactor shell. After the flue gas enters the interior, the servo motor drives the limit card board to swing back and forth continuously, thereby driving the spoiler to swing continuously, so that the sulfur-containing flue gas can be effectively transported evenly inside the bottom cavity of the reactor shell, greatly improving the even distribution of the flue gas.

[0016] 2. For the flue gas distribution device of the reactor in this design, after evenly distributing the flue gas, in order to further improve the uniform treatment of the flue gas, the driving motor drives the dialing plate to rotate continuously, so that the flue gas can be effectively evenly distributed, and then passes through the frustum shell, which can effectively make the flue gas evenly distributed, with high desulfurization efficiency and effectively reducing the dosage of desulfurizer.

[0017] Parts not involved in this device are the same as the prior art or can be realized by using the prior art. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a device for evenly distributing inlet flue gas of a reactor for calcium-based granular desulfurizer proposed by the present utility model;

[0019] Figure 2 This is a side view of the internal structure of a flue gas uniform distribution device for a reactor inlet for a calcium-based granular desulfurizer proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of a reactor shell of a flue gas uniform distribution device for a reactor inlet for a calcium-based granular desulfurizer proposed in the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of a flue gas uniform distribution device at the reactor inlet for a calcium-based granular desulfurizer proposed in the utility model.

[0022] In the figure: 1. Reactor shell; 2. Feed pipe; 3. Cone shell; 4. Vent; 5. Discharge pipe; 6. Smoke exhaust duct; 7. Rectangular smoke inlet pipe; 8. Fixed frame; 9. Spoiler; 10. Slot; 11. Linkage bracket; 12. Fixed rod; 13. Limiting clamp; 14. Servo motor; 15. First support ring; 16. Second support ring; 17. Linkage ring; 18. Toggle plate; 19. Gear ring; 20. Drive gear; 21. Drive motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1:

[0025] A flue gas distribution device for the reactor inlet for calcium-based granular desulfurizer, this embodiment is based on plastic products with a density greater than water, in order to achieve the cleaning of impurities, such as Figures 1-4 As shown, it includes a reactor shell 1 and a driving motor 21, wherein a feed pipe 2 is connected at the top axis of the reactor shell 1, and a frustum shell 3 is fixed inside the reactor shell 1 by bolts, the inner wall of the frustum shell 3 is penetrated with vent holes 4 distributed at equal distances, and the bottom inner wall of the frustum shell 3 is connected with a discharge pipe 5, a smoke exhaust pipe 6 is connected to the inner wall of one side of the top of the reactor shell 1, both ends of the bottom inner wall of the reactor shell 1 are connected with rectangular smoke inlet pipes 7, and the outer wall of the end of the rectangular smoke inlet pipe 7 is fixed with a fixed frame 8 by bolts, the inner wall of the fixed frame 8 is rotatably mounted with spoilers 9 distributed at equal distances, and a card slot 10 is opened on the top of the spoiler 9, a first support ring 15 is welded to the outer wall of the middle part of the discharge pipe 5, and a second support ring 16 is welded to the inner wall of the reactor shell 1, a linkage ring 17 is sleeved on the top of the first support ring 15, and a toggle plate 18 distributed at equal distances is welded on the side of the linkage ring 17;

[0026] By arranging rectangular smoke inlet pipes 7 on both sides at the bottom of the reactor shell 1 to transport the flue gas, after the flue gas enters the interior, the servo motor 14 is used to drive the limit card plate 13 to swing back and forth continuously, thereby driving the spoiler 9 to swing continuously, so that the sulfur-containing flue gas can be effectively and evenly transported to the bottom cavity of the reactor shell 1, greatly improving the uniform distribution of the flue gas.

[0027] The inner wall of the card slot 10 is fixedly connected with a linkage card frame 11, and a fixing rod 12 is welded at the top center of the linkage card frame 11. A limit card plate 13 is inserted in the middle of the fixing rod 12, and a servo motor 14 is connected to the top of the limit card plate 13.

[0028] The height of the top outer wall of the first support ring 15 and the height of the top outer wall of the second support ring 16 are located in the same horizontal plane.

[0029] A gear ring 19 is welded to the bottom outer wall of the linkage ring 17, and a driving gear 20 is meshed and driven on one side outer wall of the gear ring 19. A driving motor 21 is welded at the bottom axis of the driving gear 20.

[0030] After the flue gas is evenly distributed, in order to further improve the uniform distribution of the flue gas, the driving motor 21 is used to drive the toggle plate 18 to rotate continuously, so that the flue gas can be effectively evenly distributed, thereby passing through the frustum shell 1, which can effectively make the flue gas evenly distributed, with high desulfurization efficiency and effectively reduce the amount of desulfurizer used.

[0031] When this embodiment is used, the device is first assembled and processed, and then connected to an external power supply for operation. Then, the calcium-based granular desulfurizer is poured into the interior of the frustum shell 3, and then the flue gas to be filtered is passed into the interior of the rectangular smoke inlet pipe 7, and then the servo motor 14 is started. The servo motor 14 drives the limit card plate 13 to swing back and forth continuously, so that the limit card plate 13 drives the linkage card frame 11 to swing, which will drive the bottom spoiler 9 to swing continuously, so that the flue gas entering the reactor shell 1 is evenly distributed inside the bottom cavity, and then the drive motor 21 is started again, and the drive motor 21 is used to drive the gear ring 19 to rotate continuously, thereby driving the top toggle plate 18 to rotate, which can further evenly distribute the flue gas, and then the flue gas passes through the inside of the vent 4, and is desulfurized by the calcium-based granular desulfurizer, and the desulfurized flue gas is discharged from the inside of the smoke exhaust pipe 6. After working for a period of time, the saturated calcium-based granular desulfurizer is discharged from the bottom discharge pipe 5, and the new calcium-based granular desulfurizer is poured into the inside of the feed pipe 2, so that desulfurization can continue.

[0032] Embodiment 2:

[0033] A flue gas distribution device for a reactor inlet for a calcium-based granular desulfurizer, such as Figures 1-4As shown in the figure, the following supplements are made to this embodiment on the basis of Embodiment 1: The servo motor 14 and the drive motor 21 are both connected to a PLC controller through wires, and the PLC controller is connected to an external power supply through wires. A dust-proof filter screen is clamped and arranged on the inner wall of the rectangular smoke inlet pipe 7, and the size of the dust-proof filter screen is adapted to the size of the inner wall of the rectangular smoke inlet pipe 7. The spoiler 9 swings along an inclined direction, and the swing angle of the spoiler 9 is 0° - 80°.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A flue gas distribution device for a reactor inlet for a calcium-based granular desulfurizer, comprising a reactor housing (1) and a drive motor (21), characterized in that: The top axis of the reactor shell (1) is connected to a feed pipe (2), and a frustum shell (3) is fixed to the inside of the reactor shell (1) by bolts, the inner wall of the frustum shell (3) is penetrated with vent holes (4) distributed at equal distances, and the bottom inner wall of the frustum shell (3) is connected to a discharge pipe (5), the inner wall of one side of the top of the reactor shell (1) is connected to a smoke exhaust pipe (6), and both ends of the bottom inner wall of the reactor shell (1) are connected to rectangular smoke inlet pipes (7), and the ends of the rectangular smoke inlet pipes (7) are connected to the ends of the rectangular smoke inlet pipes (7). A fixed frame (8) is fixed to the outer wall of the reactor shell (1) by bolts, and spoilers (9) distributed at equal distances are rotatably mounted on the inner wall of the fixed frame (8), and a slot (10) is provided on the top of the spoiler (9). A first support ring (15) is welded to the outer wall of the middle part of the discharge pipe (5), and a second support ring (16) is welded to the inner wall of the reactor shell (1), a linkage ring (17) is sleeved on the top of the first support ring (15), and a toggle plate (18) distributed at equal distances is welded to the side of the linkage ring (17).

2. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 1, characterized in that: A linkage bracket (11) is fixedly connected to the inner wall of the bracket slot (10), and a fixing rod (12) is welded at the top center of the linkage bracket (11).

3. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 2, characterized in that: A limiting clamping plate (13) is inserted into the middle of the fixing rod (12), and a servo motor (14) is connected to the top of the limiting clamping plate (13).

4. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 1, characterized in that: The height of the top outer wall of the first support ring (15) and the height of the top outer wall of the second support ring (16) are located in the same horizontal plane.

5. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 1, characterized in that: A gear ring (19) is welded to the bottom outer wall of the linkage ring (17), and a driving gear (20) is meshed and driven on one side outer wall of the gear ring (19), and a driving motor (21) is welded at the bottom axis of the driving gear (20).

6. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 3, characterized in that: The servo motor (14) and the drive motor (21) are both connected to a PLC controller via wires, and the PLC controller is connected to an external power source via wires.

7. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 1, characterized in that: The inner wall of the rectangular smoke inlet pipe (7) is clamped with a dustproof filter screen, and the size of the dustproof filter screen is compatible with the size of the inner wall of the rectangular smoke inlet pipe (7).

8. The device for distributing flue gas at the reactor inlet for calcium-based granular desulfurizer according to claim 1, characterized in that: The spoiler (9) swings along the inclined direction, and the swing angle of the spoiler (9) is 0°-80°.

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