Desulfurization equipment for flue gas of graphitization furnace

Abstract

The utility model discloses graphitization furnace flue gas desulfurization equipment which comprises a desulfurization tower, the top of the desulfurization tower is provided with a gas outlet, the lower part of the outer surface of the left side of the desulfurization tower is provided with a gas inlet, and the bottom of the outer surface of the right side of the desulfurization tower is fixedly provided with a liquid discharge pipe; a lower-section filler layer is arranged at the lower part of the inner cavity of the desulfurizing tower, a middle-section filler layer is arranged in the middle of the inner cavity of the desulfurizing tower, an upper-section filler layer is arranged at the upper part of the inner cavity of the desulfurizing tower, spray heads are mounted at the upper ends of the upper-section filler layer, the middle-section filler layer and the lower-section filler layer, and liquid conveying pipes are mounted at the upper ends of the spray heads; alloy porous trays are arranged on the outer surfaces of the lower ends of the upper-section filler layer, the middle-section filler layer and the lower-section filler layer. According to the desulfurization equipment for the flue gas of the graphitization furnace, a multi-layer filler design is adopted, and the interior of the tower is divided into three sections, so that the treatment efficiency and quality are improved, and sediments are prevented from being generated at the bottom of the inner cavity of the desulfurization tower.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas treatment of graphitization furnace, specifically to a kind of desulfurization equipment of flue gas of graphitization furnace. BACKGROUND

[0002] Desulfurization tower plays a key role in flue gas treatment of graphitization furnace, mainly used for removing sulfur dioxide (SO2) and other acid gases (such as HCl, HF, etc.) in flue gas to reduce environmental pollution and meet environmental emission standards.

[0003] However, in the prior art, when high-concentration SO2 is treated by the desulfurization tower, only single-layer packing is used for desulfurization, which cannot meet the desulfurization requirements and reduces the desulfurization efficiency; and the absorption liquid (such as limestone slurry) needs to be in full contact with the waste gas to absorb SO2; the absorption liquid accumulates at the bottom of the tower to form a slurry pool, and solid particles are prone to precipitate at the bottom of the desulfurization tower.

[0004] Therefore, we propose a kind of desulfurization equipment of flue gas of graphitization furnace. CONTENT OF THE UTILITY MODEL

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of desulfurization equipment of flue gas of graphitization furnace, adopt multilayer packing design, divide into three sections in tower, improve the efficiency and quality of processing, and avoid the precipitation of the bottom of the inner cavity of desulfurization tower, which can effectively solve the problems in the background art.

[0007] (II) Technical scheme

[0008] To achieve the above purpose, the utility model takes the technical scheme that a kind of desulfurization equipment of flue gas of graphitization furnace, including desulfurization tower, the top of the desulfurization tower is provided with gas outlet, the lower part of the left outer surface of the desulfurization tower is provided with gas inlet, the bottom of the right outer surface of the desulfurization tower is fixedly installed with drainage pipe, the lower part of the inner cavity of the desulfurization tower is provided with lower packing layer, the middle part of the inner cavity of the desulfurization tower is provided with middle packing layer, the upper part of the inner cavity of the desulfurization tower is provided with upper packing layer, the upper end of upper packing layer, middle packing layer and lower packing layer is all installed with shower head, the upper end of the shower head is installed with liquid delivery pipe, the lower end outer surface of upper packing layer, middle packing layer and lower packing layer is all provided with alloy porous tray, the alloy porous tray is fixed on the inner wall of desulfurization tower, the lower end outer surface of the desulfurization tower is fixedly installed with base, the base is connected with desulfurization tower between stirring structure, the stirring structure includes motor, rotating shaft, stirrer, installation cavity, worm wheel and worm, the motor is fixedly installed on the outer surface of base one side one end.

[0009] Preferably, the upper packing layer uses corrosion-resistant ceramic packing.

[0010] Preferably, the corrosion-resistant ceramic packing is an alumina ceramic Pall ring.

[0011] Preferably, the middle packing layer uses a Raschig ring.

[0012] Preferably, the upper packing layer uses structured packing.

[0013] Preferably, the installation cavity is arranged in the interior of the base, the worm gear and the worm are located in the installation cavity, the stirrer is located at the bottom of the interior of the desulfurization tower, the stirrer is fixedly installed on the outer wall of the upper portion of the rotating shaft, the worm gear is fixedly installed on the outer wall of the lower portion of the rotating shaft, the worm is located on the outer surface of one side of the worm gear, the rotating shaft is provided with a sealing bearing between the desulfurization tower and the base, the rotating shaft is rotatably connected with the desulfurization tower and the base through the sealing bearing, the worm is provided with a sealing bearing between the worm and the base, the worm is rotatably connected with the base through the sealing bearing, the worm is provided with a shaft coupling between the worm and the motor, the outer surface of one end of the worm is fixedly connected with the outer surface of one end of the output shaft of the motor through the shaft coupling, and the outer surface of one side of the worm is engaged with the outer surface of one side of the worm gear.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a kind of desulfurization equipment of graphitization furnace flue gas, with following beneficial effects:

[0016] 1、The desulfurization equipment of graphitization furnace flue gas, adopt multilayer packing design, divide into three sections in tower, improve the quality and desulfurization efficiency of flue gas treatment.

[0017] 2、The desulfurization equipment of graphitization furnace flue gas, by being provided with the stirring structure, it is convenient to store and stir the bottom of the interior of desulfurization tower, avoid the bottom of the interior of desulfurization tower to produce sediment. DETAILED DESCRIPTION

[0018] Figure 1 It is the overall structure schematic diagram of the desulfurization equipment of graphitization furnace flue gas of the utility model.

[0019] Figure 2 It is the partial side view sectional view of the desulfurization equipment of graphitization furnace flue gas of the utility model.

[0020] Figure 3 It is the structure schematic diagram of base and stirring structure in the desulfurization equipment of graphitization furnace flue gas of the utility model.

[0021] Figure 4 It is the overhead sectional view of base in the desulfurization equipment of graphitization furnace flue gas of the utility model.

[0022] In the diagram: 1. Desulfurization tower; 2. Base; 3. Gas outlet; 4. Liquid delivery pipe; 5. Drain pipe; 6. Stirring structure; 7. Gas inlet; 8. Upper packing layer; 9. Middle packing layer; 10. Lower packing layer; 11. Alloy porous tray; 12. Spray head; 13. Motor; 14. Rotating shaft; 15. Agitator; 16. Mounting cavity; 17. Worm gear; 18. Worm. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a desulfurization device for flue gas from a graphitization furnace.

[0025] like Figures 1-4 As shown, the system includes a desulfurization tower 1, a gas outlet 3 at the top of the desulfurization tower 1, a gas inlet 7 at the lower part of the left outer surface of the desulfurization tower 1, a drain pipe 5 fixedly installed at the bottom of the right outer surface of the desulfurization tower 1, a lower packing layer 10 at the lower part of the inner cavity of the desulfurization tower 1, a middle packing layer 9 at the middle part of the inner cavity of the desulfurization tower 1, and an upper packing layer 8 at the upper part of the inner cavity of the desulfurization tower 1. Spray heads 12 are installed at the upper ends of the upper packing layer 8, the middle packing layer 9, and the lower packing layer 10. The upper section packing layer 8, the middle section packing layer 9 and the lower section packing layer 10 are all provided with alloy porous trays 11 on their lower outer surfaces. The alloy porous trays 11 are fixed on the inner wall of the desulfurization tower 1. The lower outer surface of the desulfurization tower 1 is fixedly installed with a base 2. The base 2 and the desulfurization tower 1 are connected by a stirring structure 6. The stirring structure 6 includes a motor 13, a rotating shaft 14, a stirrer 15, a mounting cavity 16, a worm gear 17 and a worm 18. The motor 13 is fixedly installed on one end of the outer surface of one side of the base 2.

[0026] The upper section packing layer 8 uses corrosion-resistant ceramic packing; the corrosion-resistant ceramic packing is an alumina ceramic Pall ring; the middle section packing layer 9 uses a Raschig ring; the upper section packing layer 8 uses structured packing; the mounting cavity 16 is arranged in the interior of the base 2, the worm gear 17 and the worm 18 are both located in the mounting cavity 16, the stirrer 15 is located at the bottom of the interior cavity of the desulfurization tower 1, and the stirrer 15 is fixedly installed on the outer wall of the upper portion of the rotating shaft 14, the worm gear 17 is fixedly installed on the outer wall of the lower portion of the rotating shaft 14, the worm 18 is located on the outer surface of one side of the worm gear 17, the rotating shaft 14 is provided with a sealing bearing between the desulfurization tower 1 and the base 2, the rotating shaft 14 is rotatably connected with the desulfurization tower 1 and the base 2 through the sealing bearing, the worm 18 is provided with a sealing bearing between the base 2, and the worm 18 is rotatably connected with the base 2 through the sealing bearing, the worm 18 is provided with a shaft coupling between the motor 13, and one end of the outer surface of the worm 18 is fixedly connected with one end of the outer surface of the output shaft of the motor 13 through the shaft coupling, and the outer surface of one side of the worm 18 is engaged with the outer surface of one side of the worm gear 17.

[0027] It should be noted that the utility model is a kind of graphite furnace flue gas desulfurization equipment, by setting lower section packing layer 10, using high specific surface area structured packing, such as Mellapak or Flexipac structured packing, packing is composed of corrugated board, with greater specific surface area and lower pressure drop, for preliminary absorption, by setting middle section packing layer 9, using bulk packing (such as Raschig ring), increase gas-liquid contact time, by setting upper section packing layer 8, using corrosion-resistant ceramic packing, for deep desulfurization, adopt multilayer packing design, divide into three sections in tower, to improve the quality of flue gas treatment and desulfurization efficiency;Setting stirring structure 6, in wet desulfurization, absorption liquid (such as limestone slurry) needs to be fully contacted with waste gas to absorb SO2, absorption liquid accumulates in the bottom, forms slurry pool, the rotation of motor 13 drives worm 18 to rotate, worm 18 is engaged with worm gear 17, worm 18 drives rotating shaft 14 to rotate by worm gear 17, rotating shaft 14 drives stirrer 15 to rotate, the bottom of the interior cavity of desulfurization tower 1 is stirred by stirrer 15, to avoid precipitation.

[0028] It is to be noted that, in this document, the terms such as first and second, etc. are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A desulfurization device for flue gas of a graphitization furnace, comprising a desulfurization tower (1), a gas outlet (3) is arranged at the top of the desulfurization tower (1), a gas inlet (7) is arranged at the lower part of the left outer surface of the desulfurization tower (1), and a liquid discharge pipe (5) is fixedly installed at the bottom of the right outer surface of the desulfurization tower (1), characterized in that: The lower part of the inner cavity of the desulfurization tower (1) is provided with a lower section packing layer (10), the middle part of the inner cavity of the desulfurization tower (1) is provided with a middle section packing layer (9), and the upper part of the inner cavity of the desulfurization tower (1) is provided with an upper section packing layer (8).

2. A desulphurization plant for the fumes of a graphitization furnace according to claim 1, characterized in that: The upper section packing layer (8) uses corrosion-resistant ceramic packing.

3. A desulphurization plant for the fumes of a graphitization furnace according to claim 2, characterized in that: The corrosion-resistant ceramic packing is an alumina ceramic Bauer ring.

4. A desulphurization plant for the fumes of a graphitization furnace according to claim 3, characterized in that: The middle section packing layer (9) uses a Rasching ring.

5. A desulphurization plant for the fumes of a graphitization furnace according to claim 4, characterized in that: The upper section packing layer (8) uses structured packing.

6. A desulphurization plant for the fumes of a graphitization furnace according to claim 5, characterized in that: The installation cavity (16) is opened in the inside of the base (2), the worm gear (17) and the worm (18) are located in the installation cavity (16), the agitator (15) is located at the bottom of the inner cavity of the desulfurization tower (1), and the agitator (15) is fixedly installed on the outer wall of the upper part of the rotating shaft (14), the worm gear (17) is fixedly installed on the outer wall of the lower part of the rotating shaft (14), the worm (18) is located on one side of the outer surface of the worm gear (17), the rotating shaft (14) is provided with a sealing bearing between the desulfurization tower (1) and the base (2), the rotating shaft (14) is rotatably connected with the desulfurization tower (1) and the base (2) through the sealing bearing, the worm (18) is provided with a sealing bearing between the base (2), and the worm (18) is rotatably connected with the base (2) through the sealing bearing, the worm (18) is provided with a shaft coupling between the base (2), and one end of the outer surface of the worm (18) is fixedly connected with one end of the output shaft of the motor (13) through the shaft coupling, and one side of the outer surface of the worm (18) is engaged with one side of the outer surface of the worm gear (17).

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