Catalytic device for desulfurization and denitrification

Abstract

The utility model belongs to the technical field of desulfurization and denitrification, and particularly relates to a catalytic device for desulfurization and denitrification, which comprises a lime milk tank communicated with a desulfurization tower, a lifting component arranged on the side wall of the lime milk tank and a bidirectional stirring component fixed on the lifting component, due to the fact that the left driven gear and the right driven gear are arranged on the two sides of the driving gear and meshed with each other, the left driven gear and the right driven gear are driven to rotate in the opposite directions at the moment, then the left stirring blade and the right stirring blade are driven to conduct mixing and bidirectional stirring in the lime milk tank in the opposite directions, and the mixing efficiency and the mixing effect are improved; a guide block is screwed on a screw rod, and the guide block is limited by a guide rail, so that the rotation of the screw rod drives the guide block to axially move up and down, the bidirectional stirring assembly is lifted, the stirring blades are convenient to clean, and the cleaning effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of desulfurization and denitration, and specifically relates to a catalytic device for desulfurization and denitration. Background Art

[0002] With the continuous acceleration of industrialization and urbanization in my country, industry has occupied an increasingly large proportion in the growth of the national economy. Human demand for energy has also increased day by day. The consumption of natural resources such as coal, oil, and natural gas has increased dramatically, leading to air pollution. In recent years, with the influence of haze weather, the state has clarified the emission concentration indicators of sulfides and nitrides in the flue gas of coke ovens in the coking industry, requiring strict control of the emission of sulfides and nitrides. However, the existing catalytic reaction is generally carried out using lime. Lime can absorb sulfur dioxide remaining in the flue gas from the fuel. The lime needs to be emulsified in a lime milk pool first, and then the lime milk is transported to the desulfurization tower through a slurry pump for catalysis with the flue gas. However, stirring operation is required inside the lime milk pool. The one-way stirring of the existing technology has poor mixing effect, which affects the catalytic effect. In addition, the stirring mechanism is arranged inside, and the lime milk is easily accumulated on the stirring blades, which is not easy to clean, affecting subsequent use. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the utility model provides a catalytic device for desulfurization and denitrification, comprising a lime milk tank connected to a desulfurization tower, a lifting assembly arranged on the side wall of the lime milk tank, and a bidirectional stirring assembly fixed on the lifting assembly;

[0004] The lifting assembly comprises a U-shaped support fixed on the side wall of the lime milk tank, a screw rod is longitudinally arranged between the two ends of the U-shaped support through a bearing, and a pair of guide rails for guiding.

[0005] As a preferred catalytic device for desulfurization and denitrification of the utility model, a reduction motor is fixed on the top of the U-shaped support, the rotor of the reduction motor is connected to the screw, a guide block sliding up and down is clamped on the guide rail, and a threaded hole is opened at the center of the guide block.

[0006] As a preferred embodiment of the catalytic device for desulfurization and denitrification of the utility model, the guide block is screwed onto the screw rod through a threaded hole, and the rotation of the screw rod drives the guide block to perform axial movement in the up and down directions.

[0007] As a preferred catalytic device for desulfurization and denitrification of the utility model, the bidirectional stirring assembly includes a support rod fixed to the side wall of the guide block, a top cover sealed with the lime milk tank is fixed on the support rod, and a stirring mechanism is provided on the top cover.

[0008] As a preferred catalytic device for desulfurization and denitrification of the utility model, the stirring mechanism includes a driving gear fixed inside the top cover, and a first reduction motor fixed on the top of the top cover, and the rotor of the first reduction motor is fixedly connected to the driving gear.

[0009] As a preferred catalytic device for desulfurization and denitrification of the utility model, a left driven gear and a right driven gear are arranged on both sides of the driving gear, and a left stirring blade and a right stirring blade are respectively arranged at the bottom of the left driven gear and the right driven gear.

[0010] As a preferred embodiment of the catalytic device for desulfurization and denitrification of the utility model, the driving gear is meshed with the left driven gear and the right driven gear.

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

[0012] 1. The driving gear is driven to rotate by the first reduction motor. Since the left driven gear and the right driven gear are arranged on both sides of the driving gear and mesh with each other, the left driven gear and the right driven gear are driven to rotate in opposite directions, thereby driving the left stirring blade and the right stirring blade to mix in opposite directions inside the lime milk tank, and two-way stirring is performed to improve the mixing efficiency and mixing effect, thereby enhancing the catalytic effect.

[0013] 2. The reduction motor drives the screw to rotate. Since the guide block is screwed onto the screw and is limited by the guide rail, the rotation of the screw drives the guide block to move axially in the up and down directions, thereby lifting the bidirectional stirring assembly, making it easier to clean the stirring blades, with a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the lifting component and the bidirectional stirring component in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the lifting component in the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the bidirectional stirring assembly in the utility model;

[0019] In the figure:

[0020] 1. Lime milk tank;

[0021] 2. Lifting assembly; 21. U-shaped support; 22. Screw; 23. Guide rail; 24. Speed ​​reduction motor; 25. Guide block;

[0022] 3. Two-way stirring assembly; 31. Support rod; 32. Top cover; 33. Stirring mechanism; 331. Driving gear; 332. First reduction motor; 333. Left driven gear; 334. Right driven gear; 335. Left stirring blade; 336. Right stirring blade; DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1 As shown;

[0026] A catalytic device for desulfurization and denitrification comprises a lime milk tank 1 connected to a desulfurization tower.

[0027] In this embodiment: In order to solve the technical problems existing in the prior art, as disclosed in the background technology above, "However, stirring operation needs to be performed inside the lime milk pool. The one-way stirring of the prior art has poor mixing effect, which affects the catalytic effect, and the stirring mechanism is arranged inside. The lime milk is easily accumulated on the stirring blades, which is not easy to clean, affecting the subsequent use. Combined with actual use, this problem is obviously a real problem that exists and is difficult to solve. Therefore, in order to solve this technical problem, a lifting component 2 and a two-way stirring component 3 are added on this basis.

[0028] like Figure 1-Figure 4 As shown;

[0029] In combination with the above content, in order to improve the mixing effect and the cleaning effect, it also includes a lifting component 2 arranged on the side wall of the lime milk tank 1 and a two-way stirring component 3 fixed on the lifting component 2;

[0030] The lifting assembly 2 comprises a U-shaped support 21 fixed to the side wall of the lime milk tank 1, a screw rod 22 is longitudinally arranged between the two ends of the U-shaped support 21 through a bearing, and a pair of guide rails 23 for guiding.

[0031] In an optional embodiment, a reduction motor 24 is fixed on the top of the U-shaped support 21, and the rotor of the reduction motor 24 is connected to the screw 22. A guide block 25 that slides up and down is clamped on the guide rail 23. A threaded hole 26 is opened at the center of the guide block 25. The guide block 25 is screwed on the screw 22 through the threaded hole 26, and the rotation of the screw 22 drives the guide block 25 to perform axial movement in the up and down directions.

[0032] In this embodiment: the reduction motor 24 drives the screw 22 to rotate. Since the guide block 25 is screwed onto the screw 22 and the guide block 25 is limited by the guide rail 23, the rotation of the screw 22 drives the guide block 25 to perform axial movement in the up and down directions, thereby lifting the bidirectional stirring assembly 3, which is convenient for cleaning the stirring blades and has a good cleaning effect.

[0033] In an optional embodiment, the bidirectional stirring assembly 3 includes a support rod 31 fixed to the side wall of the guide block 25 , a top cover 32 sealed with the lime milk tank 1 is fixedly provided on the support rod 31 , and a stirring mechanism 33 is provided on the top cover 32 .

[0034] In an optional embodiment, the stirring mechanism 33 includes a driving gear 331 fixed inside the top cover 2, and a first reduction motor 332 fixed on the top of the top cover 2, the rotor of the first reduction motor 332 is fixedly connected to the driving gear 331, and a left driven gear 333 and a right driven gear 334 are arranged on both sides of the driving gear 331, and a left stirring blade 335 and a right stirring blade 336 are respectively arranged at the bottom of the left driven gear 333 and the right driven gear 334, and the driving gear 331 is meshed with the left driven gear 333 and the right driven gear 334.

[0035] In this embodiment: the driving gear 331 is driven to rotate by the first reduction motor 332. Since the left driven gear 333 and the right driven gear 334 are arranged on both sides of the driving gear 331 and mesh with each other, the left driven gear 333 and the right driven gear 334 are driven to rotate in opposite directions, thereby driving the left stirring blade 335 and the right stirring blade 336 to mix in opposite directions inside the lime milk tank 1, and two-way stirring is performed to improve the mixing efficiency and mixing effect, thereby enhancing the catalytic effect.

[0036] Working principle of this utility model:

[0037] The driving gear 331 is driven to rotate by the first reduction motor 332. Since the left driven gear 333 and the right driven gear 334 are arranged on both sides of the driving gear 331 and mesh with each other, the left driven gear 333 and the right driven gear 334 are driven to rotate in opposite directions, thereby driving the left stirring blade 335 and the right stirring blade 336 to mix in opposite directions inside the lime milk tank 1, and bidirectional stirring is performed to improve the mixing efficiency and the mixing effect, thereby improving the catalytic effect. After mixing, the reduction motor 24 drives the screw 22 to rotate. Since the guide block 25 is screwed on the screw 22 and the guide block 25 is limited by the guide rail 23, the rotation of the screw 22 drives the guide block 25 to perform axial movement in the up and down directions, thereby lifting the bidirectional stirring component 3, which is convenient for cleaning the stirring blades, and the cleaning effect is good.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. 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. A catalytic device for desulfurization and denitrification, comprising a lime milk tank (1) connected to a desulfurization tower, characterized in that: It also includes a lifting assembly (2) arranged on the side wall of the lime milk tank (1) and a bidirectional stirring assembly (3) fixed on the lifting assembly (2); The lifting assembly (2) comprises a U-shaped support (21) fixed to the side wall of the lime milk tank (1), a screw (22) is longitudinally arranged between the two ends of the U-shaped support (21) through a bearing, and a pair of guide rails (23) for guiding.

2. A catalytic device for desulfurization and denitrification according to claim 1, characterized in that: A reduction motor (24) is fixed on the top of the U-shaped support (21), the rotor of the reduction motor (24) is connected to the screw rod (22), a guide block (25) that slides up and down is clamped on the guide rail (23), and a threaded hole (26) is opened at the center of the guide block (25).

3. A catalytic device for desulfurization and denitrification according to claim 2, characterized in that: The guide block (25) is screwed onto the screw rod (22) through a threaded hole (26), and the rotation of the screw rod (22) drives the guide block (25) to perform axial movement in the up and down directions.

4. A catalytic device for desulfurization and denitrification according to claim 1, characterized in that: The bidirectional stirring assembly (3) comprises a support rod (31) fixed to the side wall of the guide block (25), a top cover (32) sealed with the lime milk tank (1) is fixedly arranged on the support rod (31), and a stirring mechanism (33) is arranged on the top cover (32).

5. A catalytic device for desulfurization and denitrification according to claim 4, characterized in that: The stirring mechanism (33) comprises a driving gear (331) fixed inside the top cover (2), and a first reduction motor (332) fixed on the top of the top cover (2), wherein the rotor of the first reduction motor (332) is fixedly connected to the driving gear (331).

6. A catalytic device for desulfurization and denitrification according to claim 5, characterized in that: A left driven gear (333) and a right driven gear (334) are arranged on both sides of the driving gear (331), and a left stirring blade (335) and a right stirring blade (336) are arranged at the bottom of the left driven gear (333) and the right driven gear (334), respectively.

7. A catalytic device for desulfurization and denitrification according to claim 5, characterized in that: The driving gear (331) meshes with the left driven gear (333) and the right driven gear (334).

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