Dry desulfurization and denitrification equipment

Abstract

The utility model discloses a kind of dry desulfurization and denitrification equipment, the equipment horizontal reaction bin both ends are connected air duct, and the air outlet side air duct is equipped with nitrate sulfur detection device;Multiple filler barrels are erected in the reaction bin packing frame, there is closed cylinder in cylinder, and the both are realized gas flow control by air hole and strip through hole cooperation;Filler column is inserted in closed cylinder, and is positioned by guide structure, and is locked by double elastic sheet self-locking pin and locking groove cooperation, and cooperation sealing ring and closed cylinder sealing ring guarantee sealing;When replacing filler column, rotate operation, make air hole dislocation block gas, simultaneously release lock, realize non-stop replacement, improve production efficiency, guarantee sealing property and operating convenience.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a dry desulfurization and denitrification equipment. Background Technology

[0002] During industrial production, the emission of large amounts of waste gas containing sulfur oxides and nitrogen oxides can pollute the environment, making desulfurization and denitrification treatment crucial. Dry desulfurization and denitrification technology has been widely used in the industrial field due to its advantages such as simple process and low equipment investment.

[0003] Currently, dry desulfurization and denitrification mainly rely on the chemical reaction between the packing material and the sulfides and nitrogen oxides in the gas to neutralize them, thereby purifying the gas. However, as the reaction continues, the packing material will gradually be consumed and become ineffective, leading to a decrease in purification efficiency. To ensure the purification effect, the packing material needs to be replaced in a timely manner. However, existing dry desulfurization and denitrification equipment must be shut down when replacing the packing material. Shutdown not only leads to production interruption and affects production efficiency, but also increases the production costs of enterprises. Therefore, developing a dry desulfurization and denitrification equipment that can replace the packing material without shutting down the machine is of great practical significance. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a dry desulfurization and denitrification equipment to solve the problems mentioned in the background art.

[0005] To achieve the above technical objectives, the present invention provides a dry desulfurization and denitrification equipment, comprising: a reaction chamber, with air ducts communicating with both ends of the reaction chamber; a detachable packing column on the reaction chamber; a packing frame fixedly installed inside the reaction chamber; the upper end of the packing frame fixedly connected to the inner top of the reaction chamber; a plurality of packing cylinders arrayed along the length of the packing frame; each packing cylinder having a strip-shaped through hole along its length; a closed cylinder installed inside each packing cylinder; a vent hole adapted to the strip-shaped through hole on the closed cylinder; the upper end of the closed cylinder penetrating the top wall of the reaction chamber and rotatably connected thereto; the packing column inserted into the closed cylinder; and a locking and sealing mechanism between the top of the packing column and the top of the closed cylinder.

[0006] Furthermore, a positioning ring is provided at the top of the closed cylinder, and an arc-shaped sliding hole is provided on the positioning ring. A positioning bolt is provided on the reaction chamber, and the positioning bolt passes through the arc-shaped sliding hole to hold the positioning ring on the reaction chamber.

[0007] Furthermore, the packing column is a polygonal prism frame with a breathable mesh laid on it. The top of the packing column is provided with a top cover, and the bottom is provided with a removable cover. Guide posts are provided on two opposing prisms on the packing column, and guide grooves are provided on the inner wall of the closed cylinder. The guide posts slide freely within the guide grooves.

[0008] Furthermore, the locking and sealing mechanism includes a double-spring self-locking pin, a sealing ring and an arc-shaped groove corresponding to the positioning bolt are provided on the lower surface of the top cover, a locking groove is provided on the positioning ring, the double-spring self-locking pin is located in the arc-shaped groove and is directly opposite the locking groove, and a C-shaped tightening seat that cooperates with the double-spring self-locking pin is provided on the top of the positioning bolt.

[0009] Furthermore, a nitrate and sulfur detection device is installed on the air duct on the air outlet side of the reaction chamber, and sealing rings are installed on both the upper and lower parts of the sealed cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model include:

[0011] 1. The unique design of the packing column and the sealing cylinder in this utility model allows the packing column to be rotated and the sealing cylinder to rotate synchronously when the packing column is replaced. This causes the vent hole and the strip-shaped through hole to be misaligned, blocking the gas from entering the packing cylinder to be replaced. This process does not require a complete shutdown of the entire machine. The replacement of a single packing column can be completed without affecting the normal reaction in other areas, which greatly improves production efficiency, ensures the continuity of production, and reduces economic losses caused by downtime.

[0012] 2. This utility model uses a locking and sealing mechanism with double spring self-locking pins and locking grooves to stably lock the packing column and the sealing cylinder during normal operation, and achieve good sealing with the sealing ring. When replacing the packing column, the locking can be released by rotation. At the same time, the sealing rings at the top and bottom of the sealing cylinder fit tightly against the inner wall of the packing cylinder, further preventing gas leakage. This design not only ensures the sealing performance of the equipment during operation, but also simplifies the packing replacement operation, reducing the difficulty of operation and labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a dry desulfurization and denitrification equipment provided by this utility model;

[0014] Figure 2 This is a schematic diagram of the packing frame of a dry desulfurization and denitrification equipment provided by this utility model;

[0015] Figure 3 This is a schematic diagram of the packing column of a dry desulfurization and denitrification equipment provided by this utility model;

[0016] Figure 4This is a cross-sectional view of the packing column of a dry desulfurization and denitrification equipment provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1 , Figure 2 This utility model provides a dry desulfurization and denitrification equipment, including a horizontal reaction chamber 1, with air ducts 2 connected to both ends to form a gas flow channel. A nitrate and sulfur detection device 3 is installed on the air duct 2 on the air outlet side of the reaction chamber 1. The nitrate and sulfur detection device 3 is used to detect the sulfur and nitrate content in the gas after desulfurization and denitrification treatment in real time, so as to determine the working effect of the equipment and whether the parameters need to be adjusted or the packing needs to be replaced.

[0019] A packing frame 6 is fixedly installed inside the reaction chamber 1, with its upper end fixedly connected to the top of the reaction chamber 1. Multiple packing cylinders 601 are arrayed along the length direction on the packing frame 6. The packing cylinders 601 have strip-shaped through holes 602 along the length direction. The two ends of the packing frame 6 are connected to the two side walls of the reaction chamber 1, dividing it into several small chambers along the gas flow direction. The strip-shaped through holes 602 are directly opposite the air duct 2, so that gas can only pass through the packing cylinders 601. A closed cylinder 5 is installed inside the packing cylinders 601.

[0020] Reference Figure 3 The sealed cylinder 5 has a vent 501 with the same size as the strip-shaped through hole 602 on its wall. During initial installation, the sealed cylinder 5 is rotated to completely misalign the vent 501 with the strip-shaped through hole 602, forming an airtight isolation state. A positioning ring 502 is welded to the top of the sealed cylinder 5. An arc-shaped sliding hole 503 is opened on the outer edge of the positioning ring 502. A positioning bolt 102 is installed at the corresponding position on the top cover of the reaction chamber 1. The bolt passes through the arc-shaped sliding hole 503 and is tightened by a wing nut to achieve the rotational positioning of the sealed cylinder 5.

[0021] A packing column 4 is inserted inside the closed cylinder 5. The packing column 4 adopts a hexagonal prism frame structure, with a breathable mesh covering the outer periphery and desulfurization and denitrification catalyst particles inside. A top cover 401 is welded to the top of the packing column 4, and a detachable cover is connected to the bottom by a thread. Vertical guide columns 402 are welded to two opposite edges of the packing column 4. Guide grooves 504 are set at corresponding positions on the inner wall of the closed cylinder 5. The guide columns 402 are inserted vertically along the grooves. Rotating the packing column 4 will drive the closed cylinder 5 to rotate synchronously.

[0022] Reference Figure 4The lower surface of the top cover 401 has a sealing ring 405 and an arc-shaped groove 403 corresponding to the positioning bolt 102. The positioning ring 502 has a locking groove 505. A double-spring self-locking pin 404 is provided in the arc-shaped groove 403, which is directly opposite to the locking groove 505. The top of the positioning bolt 102 has a C-shaped tightening seat that cooperates with it. Sealing rings 506 are provided on both the upper and lower parts of the closed cylinder 5.

[0023] To facilitate understanding of this utility model, the following is combined with... Figure 1 - Figure 4 The working principle of this solution will be explained in detail:

[0024] During normal operation, the double spring self-locking pin 404 is inserted into the locking groove 505 to lock the packing column 4 and the closed cylinder 5. The sealing ring 405 is made of elastic material to seal the gap between the positioning ring 502 and the top cover 401. The sulfur-containing and nitrate-containing flue gas enters the reaction chamber 1 from the air inlet duct 2 and completes the desulfurization and denitrification reaction through the catalytic action of the packing column 4.

[0025] When a packing column 4 needs to be replaced, the packing column 4 is rotated, and the sealing cylinder 5 rotates synchronously under its drive, so that the vent hole 501 and the strip-shaped through hole 602 are completely misaligned, and the gas cannot enter the packing cylinder 601. At the same time, the double spring self-locking pin 404 enters the C-shaped tightening seat at the top of the positioning bolt 102, thereby releasing the locking state of the double spring self-locking pin 404. The old packing column 4 is removed, the new packing column 4 is inserted, and the sealing cylinder 5 is rotated in the opposite direction to reset the vent hole 501, and the double spring self-locking pin 404 and the locking groove 505 are re-locked.

[0026] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A dry desulfurization and denitrification device, comprising a reaction chamber, wherein air ducts are provided at both ends of the reaction chamber and communicating with them, and detachable packing columns are provided on the reaction chamber, characterized in that: A packing frame is fixedly installed inside the reaction chamber. The upper end of the packing frame is fixedly connected to the inner top of the reaction chamber. Several packing cylinders are arranged in an array along the length direction on the packing frame. Each packing cylinder has a strip-shaped through hole along its length direction. A closed cylinder is installed inside each packing cylinder. The closed cylinder has a vent hole that matches the strip-shaped through hole. The upper end of the closed cylinder penetrates the top wall of the reaction chamber and is rotatably connected to it. The packing column is inserted into the closed cylinder. A locking and sealing mechanism is provided between the top of the packing column and the top of the closed cylinder.

2. The dry desulfurization and denitrification equipment according to claim 1, characterized in that: The top of the closed cylinder is provided with a positioning ring, and the positioning ring is provided with an arc-shaped sliding hole. The reaction chamber is provided with a positioning bolt, and the positioning bolt passes through the arc-shaped sliding hole to hold the positioning ring on the reaction chamber.

3. The dry desulfurization and denitrification equipment according to claim 2, characterized in that: The packing column is a multi-faceted prism frame with a breathable mesh laid on it. The top of the packing column is provided with a top cover and the bottom is provided with a removable cover. Guide posts are provided on two opposing prisms on the packing column. Guide grooves are provided on the inner wall of the closed cylinder, and the guide posts slide freely within the guide grooves.

4. The dry desulfurization and denitrification equipment according to claim 3, characterized in that: The locking and sealing mechanism includes a double spring self-locking pin. The lower surface of the top cover is provided with a sealing ring and an arc-shaped groove corresponding to the positioning bolt. The positioning ring is provided with a locking groove. The double spring self-locking pin is located in the arc-shaped groove and is directly opposite the locking groove. The top of the positioning bolt is provided with a C-shaped tightening seat that cooperates with the double spring self-locking pin.

5. The dry desulfurization and denitrification equipment according to claim 4, characterized in that: A nitrate and sulfur detection device is installed on the air duct on the air outlet side of the reaction chamber, and sealing rings are installed on the upper and lower parts of the sealed cylinder.

Images