Novel waste gas desulfurization and denitrification equipment

Abstract

The utility model relates to novel waste gas desulfurization and denitrification equipment which comprises a gas inlet pipe, two groups of treatment chambers, a connecting pipe and a gas outlet pipe, the two groups of treatment chambers are communicated through the connecting pipe, and the gas inlet pipe and the gas outlet pipe are respectively communicated with the opposite sides of the two groups of treatment chambers. The processing chamber comprises a base cover, a first end shell, a second end shell, a catalytic reaction chamber and a rotary driver. According to the novel waste gas desulfurization and denitrification equipment provided by the utility model, the flow guide part is driven by the rotary driver to rotate in the cylinder body, so that waste gas output from the small holes in the surface of the baffling pipe can be more uniformly contacted with a desulfurization catalyst or a denitrification catalyst in the cylinder body, and the turbulence of the waste gas can be increased by utilizing the rotary flow guide part; therefore, the waste gas can be in better contact with the catalyst for desulfurization and denitrification, and the dry desulfurization and denitrification effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a novel waste gas desulfurization and denitration equipment. Background Art

[0002] After the flue gas comes out of the kiln, it can pass through the desulfurization and denitrification device filled with solid desulfurizer to complete the desulfurization task. An ammonia-free denitrification catalyst is installed on the desulfurizer to complete the denitrification function, so that the emission of flue gas can reduce air pollution.

[0003] In existing desulfurization and denitrification equipment, the contact between desulfurizers and denitrifiers and the sulfur and nitrogen oxides in the exhaust gas is often insufficient. For example, the desulfurization device and the denitrifier can adsorb more sulfur and nitrogen oxides at the air inlet end, but not much is adsorbed at the end farther from the air inlet; and the desulfurizers and denitrifiers near the air inlet of the stacked desulfurizers and denitrifiers are in more sufficient contact with the exhaust gas, while the desulfurizers and denitrifiers in the outer layer are in less sufficient contact with the exhaust gas. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a novel waste gas desulfurization and denitration device, which solves the problem that the desulfurizer and denitration agent are not in sufficient contact with the waste gas.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a new type of exhaust gas desulfurization and denitrification equipment, comprising an air inlet pipe, two groups of treatment chambers, a connecting pipe and an air outlet pipe, the two groups of treatment chambers are connected by a connecting pipe, and the air inlet pipe and the air outlet pipe are respectively connected at opposite sides of the two groups of treatment chambers, and it is characterized in that the treatment chamber comprises a base cover, a first end shell, a second end shell, a catalytic reaction chamber and a rotating driver, the first end shell and the second end shell are respectively formed on the inner walls at both ends of the base cover, the catalytic reaction chamber is inserted between the first end shell and the second end shell, at least one group of guide parts is arranged inside the catalytic reaction chamber, and the inner cavity of the catalytic reaction chamber is filled with a desulfurization catalyst or a denitrification catalyst, the rotating driver is installed on the base cover and drives the connecting guide part so that the guide part is rotated in the inner cavity of the catalytic reaction chamber.

[0008] Preferably, the catalytic reaction chamber includes a cylinder, at least one group of one-way flow guides, and a number of baffles equal to the number of one-way flow guides. The one-way flow guides are installed on the inner end surface of the cylinder, and the one-way flow guides are connected to the air inlet pipe or the connecting pipe. A plurality of exhaust holes penetrating the end surface are formed on the other inner end surface of the cylinder. One end of the baffle is rotatably connected to the end of the one-way flow guide, and the other end of the baffle passes through to the outside of the cylinder and is driven and connected to a rotating driver. A plurality of small holes communicating with the inner cavity of the baffle are formed on the outer wall of the baffle, and the baffle constitutes the guide portion of the catalytic reaction chamber.

[0009] It is further preferred that the baffle tube is composed of multiple sections of U-shaped tubes connected end to end, and the height of the baffle tube is smaller than the inner diameter of the cylinder, the number of the baffle tubes is set to two groups, and the two groups of baffle tubes are staggered and distributed in the inner cavity of the cylinder.

[0010] It is further preferred that the rotation driver includes a driving motor, a steering driving structure and a transmission structure, the transmission structure is connected to one end of the deflector tube that passes through the outside of the cylinder, and the steering driving structure is respectively connected to the driving motor and the transmission structure, so that the driving motor utilizes the steering driving structure and the transmission structure to drive and adjust the rotation state of the deflector tube.

[0011] In a further embodiment, the steering drive structure is configured as a bevel gear transmission structure, and the transmission structure is configured as a synchronous gear transmission structure.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a new type of waste gas desulfurization and denitrification equipment, which has the following beneficial effects:

[0014] The novel exhaust gas desulfurization and denitrification equipment provided by the utility model rotates in the cylinder through the guide part driven by the rotary driver, so that the exhaust gas output from the small holes on the surface of the baffle tube can contact the desulfurization catalyst or denitrification catalyst in the cylinder more evenly, and the rotating guide part can also be used to increase the turbulence of the exhaust gas, so that the exhaust gas and the catalyst can have better contact and desulfurization and denitrification, thereby improving the effect of dry desulfurization and denitrification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a new type of exhaust gas desulfurization and denitrification equipment according to the implementation plan;

[0016] Figure 2 is a schematic diagram of the internal structure of a processing chamber according to the embodiment;

[0017] Figure 3 is a schematic diagram of the coordination structure of the catalytic reaction chamber and the rotary drive according to the embodiment;

[0018] Figure 4 It is a schematic diagram of the coordination structure of a one-way flow guide and a baffle tube according to the implementation scheme.

[0019] In the figure: 10, air inlet pipe; 20, processing chamber; 21, base cover; 22, first end shell; 23, second end shell; 24, catalytic reaction chamber; 241, cylinder; 242, one-way deflector; 243, baffle; 244, exhaust hole; 25, rotary drive; 251, drive motor; 252, steering drive structure; 253, transmission structure; 30, connecting pipe; 40, air outlet pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 A novel exhaust gas desulfurization and denitrification equipment comprises an intake pipe 10, two sets of treatment chambers 20, a connecting pipe 30 and an exhaust pipe 40. The two sets of treatment chambers 20 are connected by the connecting pipe 30, and the intake pipe 10 and the exhaust pipe 40 are connected at opposite sides of the two sets of treatment chambers 20, so that the exhaust gas after preliminary dust removal can be input from the intake pipe 10, and then flow through the two sets of treatment chambers 20 in sequence and perform desulfurization and denitrification treatment on the exhaust gas respectively, and finally the exhaust gas is discharged by the exhaust pipe 40.

[0022] In order to make the exhaust gas contact with the desulfurization agent or denitrification agent more fully, refer to Figure 2 The treatment chamber 20 includes a base cover 21, a first end shell 22, a second end shell 23, a catalytic reaction chamber 24, and a rotary driver 25. The first end shell 22 and the second end shell 23 are respectively formed on the inner walls of the two ends of the base cover 21, and the catalytic reaction chamber 24 is inserted between the first end shell 22 and the second end shell 23, so that the first end shell 22 and the second end shell 23 support the catalytic reaction chamber 24. At least one group of guide parts are arranged inside the catalytic reaction chamber 24, and the inner cavity of the catalytic reaction chamber 24 is filled with a desulfurization catalyst or a denitrification catalyst. The desulfurizer or denitrifier in the catalytic reaction chamber 24 covers the guide part, and the guide part has a certain movable gap between the desulfurizer or denitrifier. The rotary driver 25 is installed on the base cover 21 and drives the connecting guide part, so that the guide part is rotated and arranged in the inner cavity of the catalytic reaction chamber 24, so that during the exhaust process of the guide part rotating, the exhaust gas can be more evenly and fully contacted with the desulfurizer or denitrifier for reaction.

[0023] See also Figure 3 The catalytic reaction chamber 24 may include a cylinder 241, at least one group of one-way deflectors 242, and a number of baffles 243 equal to the number of one-way deflectors 242. The one-way deflector 242 is installed on the inner end surface of the cylinder 241, and the one-way deflector 242 is connected to the intake pipe 10 or the connecting pipe 30, so that the exhaust gas can be restricted at the one-way deflector 242. A plurality of exhaust holes 244 are formed on the other inner end surface of the cylinder 241, which penetrate the end surface, so that the exhaust gas flowing through the cylinder 241 can be discharged through the exhaust holes 244 to the base cover 21 for subsequent transmission flow. One end of the baffle 243 is rotatably connected to the end of the one-way deflector 242, and the other end of the baffle 243 passes through the outside of the cylinder 241 and is connected to the rotary driver 25, so that it can be driven to rotate between the desulfurizer or the denitrifier. The baffle tube 243 may be composed of multiple sections of U-shaped tubes connected end to end. The outer wall of the baffle tube 243 is formed with multiple groups of small holes communicating with its inner cavity, so that the exhaust gas can be discharged through the small holes and the desulfurizer or denitrifier is prevented from entering its inner cavity. The height of the baffle tube 243 is smaller than the inner diameter of the cylinder 241 so that it can avoid collision and interference with the cylinder 241 when rotating. Driven by the rotary driver, the baffle tube 243 constitutes the guide part of the catalytic reaction chamber 24.

[0024] In this embodiment, the number of the baffle tubes 243 is set to two groups, and the two groups of baffle tubes 243 are staggered and distributed in the inner cavity of the cylinder 241. The two groups of baffle tubes 243 should maintain a gap during the rotation process to avoid collision, and the two groups of baffle tubes 243 are used to transport the exhaust gas and disturb the desulfurizer or denitrifier, so that the exhaust gas and the desulfurizer or denitrifier are in more complete contact.

[0025] In this embodiment, the desulfurization agent can be activated carbon. The activated carbon desulfurization mainly utilizes the catalytic and adsorption effects of activated carbon. The catalytic activity of activated carbon is very strong. 2 Under the catalytic action of activated carbon, S reacts with a small amount of O in the gas. 2 An oxidation reaction occurs, and the elemental S generated by the reaction is adsorbed on the surface of the activated carbon.

[0026] In this embodiment, oxygen and nitrogen monoxide in the flue gas react on the catalyst to generate nitrogen dioxide, and the nitrogen dioxide is reduced by carbon monoxide generally present in the flue gas to form nitrogen and carbon dioxide.

[0027] See also Figure 3The rotation driver 25 includes a driving motor 251, a steering driving structure 252 and a transmission structure 253. The transmission structure 253 is connected to one end of the baffle tube 243 that passes through the outer side of the cylinder 241. The steering driving structure 252 is respectively connected to the driving motor 251 and the transmission structure 253, so that the driving motor 251 drives and adjusts the rotation state of the baffle tube 243 by using the steering driving structure 252 and the transmission structure 253.

[0028] In this embodiment, the transmission structure 253 can adopt a synchronous gear transmission structure. For example, as shown in the figure, the ends of the two groups of baffle tubes 243 are connected with driven gears, and a driving gear is meshed between the two groups of driven gears. The driving gear is installed on the rotating shaft of the steering drive structure 252, so that when the driving gear rotates, it utilizes the meshing cooperation with the two groups of driven gears to make the two groups of baffle tubes 243 rotate.

[0029] In this embodiment, the steering drive structure 252 can adopt a bevel gear transmission structure, as shown, the meshing between two sets of bevel gears can be used to change the rotation direction, and one set of bevel gears is connected to the output end of the drive motor 251, and the other set of bevel gears and the driving gear are coaxially connected to a set of rotating shafts, and the rotating shafts are rotatably mounted on the end surface of the cylinder 241 using bearings. Under the setting of the steering drive structure 252, the drive motor 251 can be installed outside the base cover 21, so that the drive motor 251 is more convenient for maintenance.

[0030] In this embodiment, the second end shell 23 covers the outer sides of the steering drive structure 252 and the transmission structure 253 to shield and protect them.

[0031] See also Figure 4 One end of the deflector 243 close to the one-way deflector 242 extends into the one-way deflector 242. The one-way deflector 242 has an opening at one end facing the connecting pipe 30 or the intake pipe 10, and the one-way deflector 242 may have an end cover limited by an elastic component such as a spring. After the end cover is pressed by the spring, a gap is created between the outer wall of the end cover and the inner wall of the one-way deflector 242 for the exhaust gas to flow, so that the exhaust gas can flow from the one-way deflector 242 into the deflector 243.

[0032] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel exhaust gas desulfurization and denitrification device, comprising an air inlet pipe (10), two groups of treatment chambers (20), a connecting pipe (30) and an air outlet pipe (40), wherein the two groups of treatment chambers (20) are connected by a connecting pipe (30), and the air inlet pipe (10) and the air outlet pipe (40) are respectively connected at opposite sides of the two groups of treatment chambers (20), characterized in that: The processing chamber (20) comprises a base cover (21), a first end shell (22), a second end shell (23), a catalytic reaction chamber (24) and a rotary drive (25). The first end shell (22) and the second end shell (23) are respectively formed on the inner walls at both ends of the base cover (21); the catalytic reaction chamber (24) is inserted between the first end shell (22) and the second end shell (23); at least one group of guide parts are arranged inside the catalytic reaction chamber (24); and the inner cavity of the catalytic reaction chamber (24) is filled with a desulfurization catalyst or a desulfurization catalyst; the rotary drive (25) is installed on the base cover (21) and drives the connected guide part so that the guide part is rotatably arranged in the inner cavity of the catalytic reaction chamber (24).

2. A novel exhaust gas desulfurization and denitrification equipment according to claim 1, characterized in that: The catalytic reaction chamber (24) comprises a cylinder (241), at least one group of one-way flow guides (242), and a number of baffle tubes (243) equal to the number of the one-way flow guides (242). The one-way flow guide (242) is installed on the inner end surface of the cylinder (241), and the one-way flow guide (242) is connected to the intake pipe (10) or the connecting pipe (30). A plurality of exhaust holes (244) penetrating the end surface are formed on the other inner end surface of the cylinder (241). One end of the baffle tube (243) is rotatably connected to the end of the one-way flow guide (242), and the other end of the baffle tube (243) passes through the outside of the cylinder (241) and is drivably connected to the rotary driver (25). A plurality of small holes communicating with the inner cavity of the baffle tube (243) are formed on the outer wall of the baffle tube (243). The baffle tube (243 constitutes the flow guide portion of the catalytic reaction chamber (24).

3. A novel exhaust gas desulfurization and denitrification equipment according to claim 2, characterized in that: The baffle tube (243) is composed of multiple sections of U-shaped tubes connected end to end, and the height of the baffle tube (243) is smaller than the inner diameter of the cylinder (241).

4. A novel exhaust gas desulfurization and denitrification equipment according to claim 2 or 3, characterized in that: The number of the baffle tubes (243) is set to two groups, and the two groups of baffle tubes (243) are staggered and distributed in the inner cavity of the cylinder (241).

5. A novel exhaust gas desulfurization and denitrification equipment according to claim 4, characterized in that: The rotary driver (25) comprises a driving motor (251), a steering driving structure (252) and a transmission structure (253); the transmission structure (253) is connected to one end of the baffle tube (243) extending outward from the cylinder (241); the steering driving structure (252) is respectively connected to the driving motor (251) and the transmission structure (253) in a transmission manner, so that the driving motor (251) drives and adjusts the rotation state of the baffle tube (243) by using the steering driving structure (252) and the transmission structure (253).

6. The novel exhaust gas desulfurization and denitrification equipment according to claim 5 is characterized in that: The steering drive structure (252) is configured as a bevel gear transmission structure.

7. The novel exhaust gas desulfurization and denitrification equipment according to claim 5 is characterized in that: The transmission structure (253) is configured as a synchronous gear transmission structure.

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