Sintering flue gas desulfurization and denitrification device

Abstract

The utility model discloses a sintering flue gas desulfurization and denitrification device, and relates to the technical field of flue gas treatment equipment. The device comprises a tower body, a gas inlet pipe is fixedly connected to the position, close to the bottom, of the outer ring of the tower body, a mounting plate is fixedly connected to the position, located below the gas inlet pipe, of the outer ring of the tower body, a switching box is detachably connected to the side end, away from the tower body, of the gas inlet pipe, and a connecting opening is formed in the center of the side end, away from the gas inlet pipe, of the switching box. Mounting blocks are symmetrically and fixedly connected to the sides, close to the air inlet pipe, of the upper and lower ends of the transfer box, and a cylinder is fixedly connected to the center of the side end, close to the air inlet pipe, of each mounting block; according to the utility model, the nut is dismounted, and the mounting ring, the cylinder and the round hole are matched with one another, so that the work of conveniently replacing the switching box is realized, and the problem that the maximum smoke inlet amount is limited due to the fact that the size of the air inlet is fixed is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment equipment, specifically a desulfurization and denitrification device for sintering flue gas. Background Technology

[0002] During the sintering process of steel structures, a large amount of flue gas is generated, which contains substances such as sulfur and nitrate. According to national regulations, this flue gas cannot be directly discharged into the atmosphere and needs to be desulfurized and denitrified before it can be discharged. There are several ways to desulfurize and denitrify sintering flue gas. One of them is the wet limestone-gypsum method, which uses a spray tower. This method involves mixing limestone powder with water and spraying it into the discharged flue gas to react with the substances in the waste gas. The water and gypsum are then separated by a recovery device, and the dried gypsum obtained can be recycled.

[0003] In a Chinese patent with publication number CN220443542U entitled "A Sintering Flue Gas Desulfurization and Denitrification Device", the baffle is installed by installing an mounting plate and inserting a sliding plate inside the tower body. This improves the tower body and allows the spray liquid to be intercepted by the baffle, reducing the probability of the spray liquid entering the air inlet. It also reduces the probability of the spray liquid accumulating at the connection between the air inlet and the tower body, causing erosion and deposition, thus improving the service life of the air inlet and the utilization rate of the spray liquid recovery.

[0004] However, this device still has shortcomings. The size of the air inlet of the device is fixed. When the size of the flue gas pipeline is different from that of the air inlet, the safe transportation of flue gas cannot be ensured. This limits the maximum amount of flue gas that the device can handle, which makes the equipment have certain limitations when used. In order to solve the above problems, the inventors have proposed a sintering flue gas desulfurization and denitrification device. Utility Model Content

[0005] To address the issue that a fixed air inlet size limits the maximum flue gas intake, this invention aims to provide a desulfurization and denitrification device for sintering flue gas.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a sintering flue gas desulfurization and denitrification device, comprising a tower body, an air inlet pipe fixedly connected to the outer ring of the tower body near the bottom, an mounting plate fixedly connected to the outer ring of the tower body below the air inlet pipe, a detachable adapter box connected to the side of the air inlet pipe away from the tower body, a connection port opened at the center of the side of the adapter box away from the air inlet pipe, mounting blocks symmetrically fixedly connected to the upper and lower ends of the adapter box near the side of the air inlet pipe, a cylinder fixedly connected to the center of the side of the mounting block near the side of the air inlet pipe, and an mounting ring fixedly connected to the outer ring of the air inlet pipe near the side of the adapter box, with symmetrical circular holes opened inside the mounting ring near the center, and the circular holes and the cylinders being at the same level.

[0007] Preferably, the outer ring of the cylinder has an external thread on the side near the air inlet pipe, and a protective plate is fixedly connected to the inner wall of the tower near the air inlet pipe.

[0008] Preferably, a mounting box is fixedly connected to the top of the mounting plate and to the side near the adapter box, and a vertical plate is symmetrically slidably connected to the top of the mounting box near the center.

[0009] Preferably, a double-ended screw is rotatably connected between the side walls of the mounting box, and both vertical plates are threadedly rotatably connected to the double-ended screw.

[0010] Preferably, a motor is fixedly connected to the side of the mounting box, the output end of the motor passes through the mounting box and is fixedly connected to a double-headed screw, and auxiliary limiting blocks are symmetrically fixedly connected to the opposite ends of the two vertical plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, by starting the motor, and with the cooperation between the double-headed screw, the vertical plate and the auxiliary limiting block, the effect of limiting and clamping the flue gas pipe is achieved, so as to prevent the flue gas pipe from shifting when transporting flue gas.

[0013] 2. In this utility model, by removing the nut and through the mutual cooperation between the mounting ring, cylinder, and hole, the adapter box can be easily replaced, thereby solving the problem that the maximum smoke intake is limited when the size of the air inlet is fixed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the protective plate structure of this utility model.

[0017] Figure 3 This is a cross-sectional view of the mounting box of this utility model.

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Tower body; 11. Air inlet pipe; 12. Protective plate; 13. Adapter box; 14. Mounting block; 15. Cylindrical; 16. Circular hole; 17. External thread; 18. Connection port; 2. Mounting plate; 21. Mounting box; 22. Double-ended screw; 23. Motor; 24. Vertical plate; 25. Auxiliary limit block; 3. Mounting ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1-4As shown, this utility model provides a technical solution: a sintering flue gas desulfurization and denitrification device, including a tower body 1. An air inlet pipe 11 is fixedly connected to the outer ring of the tower body 1 near the bottom. An mounting plate 2 is fixedly connected to the outer ring of the tower body 1 below the air inlet pipe 11. The mounting plate 2 is provided to install and fix the mounting box 21, and with the cooperation of the auxiliary limiting block 25, it enables the auxiliary flue gas pipeline to work normally. A transition box 13 is detachably connected to the side of the air inlet pipe 11 away from the tower body 1. Different models of transition boxes 13 are provided to facilitate connection with flue gas pipelines of different sizes. The connection ports 18 of different models of transition boxes 13 will also be different. Sealing gaskets are provided in the circular grooves opened on both sides of the transition box 13 for connection with the air inlet pipe 11 and the flue gas pipeline to prevent leakage when connecting and transporting flue gas. A connection port 18 is provided at the center of the side of the adapter box 13 away from the air intake pipe 11. Mounting blocks 14 are symmetrically fixedly connected to the upper and lower ends of the adapter box 13 and the side closer to the air intake pipe 11. A cylinder 15 is fixedly connected to the center of the side of the mounting block 14 closer to the air intake pipe 11. A mounting ring 3 is fixedly connected to the outer ring of the air intake pipe 11 and the side closer to the adapter box 13. By cooperating with the nut and external thread 17, as well as the mounting block 14 and the cylinder 15, the adapter box 13 can be easily disassembled. A circular hole 16 is symmetrically opened near the center inside the mounting ring 3, and the circular hole 16 and the cylinder 15 are at the same level. The electrical components in this application and their compatible power supply are electrically connected through wires. And a suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection method is a well known technology in this field.

[0022] The outer ring of the cylinder 15 has an external thread 17 on the side near the intake pipe 11.

[0023] By adopting the above technical solution, an external thread 17 is provided on the outer ring of the cylinder 15 in order to facilitate the disassembly of the adapter box 13 in conjunction with the nut.

[0024] A protective plate 12 is fixedly connected to the inner wall of the tower body 1 near the air inlet pipe 11.

[0025] By adopting the above technical solution, a protective plate 12 is welded to the inner wall of the tower body 1 to reduce the probability of corrosion and deposition caused by the accumulation of spray liquid at the connection between the air inlet pipe 11 and the tower body 1. The protective plate 12 is shaped like a frustum.

[0026] Mounting box 21 is fixedly connected to the top of mounting plate 2 and the side near adapter box 13.

[0027] By adopting the above technical solution, the mounting box 21 is set at the top of the mounting plate 2 in order to drive the two vertical plates 24 and the auxiliary limiting block 25 to move.

[0028] The top of the mounting box 21 has a vertical plate 24 that slides symmetrically near the center.

[0029] By adopting the above technical solution, the vertical plate 24 is slidably set on the mounting box 21 in order to drive the two auxiliary limit blocks 25 to move towards each other.

[0030] A double-ended screw 22 is rotatably connected between the side walls of the mounting box 21, and both vertical plates 24 are threadedly rotatably connected to the double-ended screw 22.

[0031] By adopting the above technical solution, after the double-headed screw 22 rotates, the two vertical plates 24 connected by the thread can move towards each other.

[0032] A motor 23 is fixedly connected to the side of the mounting box 21, and the output end of the motor 23 passes through the mounting box 21 and is fixedly connected to the double-headed screw 22.

[0033] By adopting the above technical solution, the working motor 23 can be operated to make the fixedly connected double-headed screw 22 rotate.

[0034] Two vertical plates 24 are symmetrically fixedly connected to each other with auxiliary limiting blocks 25.

[0035] By adopting the above technical solution, the auxiliary limiting blocks 25 set at opposite ends of the two vertical plates 24 are used to clamp and limit the flue gas pipe to prevent displacement during operation.

[0036] Working principle: When using this device, a protective plate 12 is installed on the inner wall of the tower body 1 near the air inlet pipe 11 to intercept the spray liquid sprayed by the spraying device, thereby reducing the probability of the spray liquid corroding the connection between the air inlet pipe 11 and the tower body 1. When it is necessary to connect the flue gas pipe to transport it into the tower body 1, the flue gas pipe needs to be inserted into the connection port 18. Then, the working motor 23 is started, which causes the fixed double-headed screw 22 to rotate. This drives the two vertical plates 24 connected by the thread to move towards each other. With the cooperation of the auxiliary limiting block 25, the flue gas pipe is clamped and limited, preventing the flue gas pipe from shifting during the transport of flue gas. When the flue gas pipe does not fit the connection port 18, the nut can be rotated and removed, so that the installation ring 3 releases the limiting work on the adapter box 13. After replacement, the new cylinder 15 is inserted into the round hole 16. Finally, with the nut, the limiting effect of the new adapter box 13 is completed, thus realizing the convenient replacement of the adapter box 13.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sintering flue gas desulfurization and denitrification device, comprising a tower body (1), characterized in that: An air inlet pipe (11) is fixedly connected to the outer ring of the tower body (1) near the bottom. An installation plate (2) is fixedly connected to the outer ring of the tower body (1) and below the air inlet pipe (11). An adapter box (13) is detachably connected to the side of the air inlet pipe (11) away from the tower body (1). A connection port (18) is opened at the center of the side of the adapter box (13) away from the air inlet pipe (11). An installation block (14) is symmetrically fixedly connected to the upper and lower ends of the adapter box (13) and the side near the air inlet pipe (11). A cylinder (15) is fixedly connected to the center of the side of the installation block (14) near the air inlet pipe (11). An installation ring (3) is fixedly connected to the outer ring of the air inlet pipe (11) and the side near the adapter box (13). A circular hole (16) is symmetrically opened inside the installation ring (3) near the center, and the circular hole (16) and the cylinder (15) are at the same level.

2. The sintering flue gas desulfurization and denitrification device as described in claim 1, characterized in that, The cylinder (15) has an external thread (17) on its outer ring and on the side near the air intake pipe (11).

3. The sintering flue gas desulfurization and denitrification device as described in claim 1, characterized in that, A protective plate (12) is fixedly connected to the inner wall of the tower body (1) near the air inlet pipe (11).

4. The sintering flue gas desulfurization and denitrification device as described in claim 1, characterized in that, The mounting plate (2) is fixedly connected to the mounting box (21) on the top and near the adapter box (13).

5. The sintering flue gas desulfurization and denitrification device as described in claim 4, characterized in that, The mounting box (21) has a vertical plate (24) symmetrically slidably connected at the top near the center.

6. The sintering flue gas desulfurization and denitrification device as described in claim 5, characterized in that, The mounting box (21) is rotatably connected to the side walls by a double-headed screw (22), and both vertical plates (24) are threadedly rotatably connected to the double-headed screw (22).

7. A sintering flue gas desulfurization and denitrification device as described in claim 6, characterized in that, A motor (23) is fixedly connected to the side of the mounting box (21), and the output end of the motor (23) passes through the mounting box (21) and is fixedly connected to the double-headed screw (22).

8. The sintering flue gas desulfurization and denitrification device as described in claim 5, characterized in that, The two vertical plates (24) are symmetrically fixedly connected to each other with auxiliary limiting blocks (25).

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