Device for continuously discharging water and continuously desulfurizing sulfur-containing tail gas

Abstract

The utility model provides a continuous water outlet and continuous desulfurization device for sulfur-containing tail gas, which relates to the technical field of desulfurization and comprises a tank body, a circulating pump is fixedly mounted at the bottom end of the surface of the tank body, a delivery pipe is fixedly connected to the water outlet end of the circulating pump, and a spray pipe is fixedly connected to the top of the delivery pipe. A driving motor is fixedly mounted on the outer wall of the tank body, a screening frame is fixedly mounted in the tank body, a flow guide plate is arranged at the top of the screening frame, and through holes formed in the top of a baffle can reduce the gas discharge amount and prolong the retention time of gas in the tank body; gas accumulated at the bottom of the baffle is subjected to spraying desulfurization, so that the desulfurization efficiency of sulfur-containing tail gas is improved, crystals and a solution can be separated through a filter screen, the solution can penetrate through the filter screen to be stored at the bottom of the tank body, the crystals can slide into a material guiding barrel through a connecting barrel, and the crystals can be pushed outwards by starting a driving motor; and solid crystals can be conveniently separated and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization technical field especially relates to a device of continuous water outlet continuous desulfurization of sulfur-containing tail gas. BACKGROUND

[0002] Now most factories carry out external discharge after the treatment of sulfur dioxide through desulfurization tower, and its basic principle is: first, limestone powder is made into slurry by adding water, and then the slurry is used as absorption liquid to be sprayed to the equipment interior and fully contacted with flue gas, sulfur dioxide in flue gas and calcium carbonate in slurry and air from the lower part of the tower are oxidized to generate calcium sulfate, and when calcium sulfate reaches a certain saturation, it crystallizes to form gypsum.

[0003] However, in the desulfurization process, due to the fast speed of flue gas, part of the flue gas does not realize full contact with the absorption liquid, resulting in that a small amount of sulfur dioxide still exists in the discharged gas, and the crystalline block formed by the reaction of sulfur dioxide and lime water has a density greater than that of the liquid in the device, which is generally precipitated at the bottom and is not easy to discharge gypsum from the interior of the tower. UTILITY MODEL CONTENT

[0004] The utility model discloses a device of continuous water outlet continuous desulfurization of sulfur-containing tail gas, which solves the problem that a small amount of sulfur dioxide still exists in the discharged gas, and the crystalline block formed by the reaction of sulfur dioxide and lime water has a density greater than that of the liquid in the device, which is generally precipitated at the bottom and is not easy to discharge gypsum from the interior of the tower.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device of continuous water outlet continuous desulfurization of sulfur-containing tail gas, comprising a tank body, the surface bottom end of the tank body is fixedly connected with a liquid discharge pipe and a liquid inlet pipe respectively, the outer wall of the tank body is fixedly connected with an air inlet pipe on one side, the top of the tank body is fixedly connected with an air outlet pipe, the surface bottom end of the tank body is fixedly installed with a circulating pump, the water inlet end of the circulating pump is communicated with the inside of the tank body, the water outlet end of the circulating pump is fixedly connected with a conveying pipe, the top of the conveying pipe is fixedly connected with a spray pipe, the spray pipe is located at the inside top end of the tank body, the outer wall of the tank body is fixedly installed with a driving motor, the inside of the tank body is fixedly installed with a screening frame, and the top of the screening frame is provided with a flow guide plate.

[0006] Preferably, the outer wall of the spray pipe is fixedly connected with a fixed rod at both ends, the side surface of the two fixed rods is fixedly connected with the inner wall of the tank body, and the top of the fixed rod is fixedly installed with an atomizing nozzle.

[0007] Preferably, the inside top end of the tank body is fixedly installed with a baffle, and the top of the baffle is provided with a through hole.

[0008] Preferably, the inside of the screening frame is a hollow structure, the bottom of the screening frame is fixedly connected with a filter screen, the filter screen is conical, and the bottom of the filter screen is fixedly connected with a connecting cylinder.

[0009] Preferably, the side of the flow guide plate is fixedly connected with a fixing block, the fixing block is fixedly installed on the inner side of the screening frame, and the fixing block is inverted conical.

[0010] Preferably, the inside of the tank body is fixedly installed with a material guide cylinder, one end of the material guide cylinder is located outside the tank body, a cavity is formed in the inside of the material guide cylinder, and the top of the material guide cylinder is fixedly connected with the bottom of the connecting cylinder.

[0011] Preferably, the output shaft of the driving motor is fixedly connected with a connecting shaft, one side of the connecting shaft is fixedly connected with a spiral conveying blade, and the spiral conveying blade is movably installed in the inside of the cavity.

[0012] Compared with the prior art, the device has the advantages and positive effects that,

[0013] 1. In the utility model, the baffle is installed in the tank body, can block the gas entering the inside of the tank body, the through hole formed in the top of the baffle can reduce the gas flow, thereby prolonging the residence time of the gas in the tank body, and the atomizing nozzle is upward, sprays the gas accumulated on the bottom of the baffle to remove sulfur, thereby improving the desulfurization efficiency of the sulfur-containing tail gas.

[0014] 2. In the utility model, the solid crystal produced after the sulfur-containing tail gas is desulfurized can fall downwards to the inside of the tank body, the filter screen can separate the crystal and the solution, the flow guide plate can make the crystal slide to the top of the filter screen, the solution can pass through the filter screen and be stored at the bottom of the tank body, and the crystal can slide to the inside of the material guide cylinder through the connecting cylinder, and the crystal can be pushed outwards by starting the driving motor, thereby facilitating the separation and cleaning of the solid crystal. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A tank body three-dimensional structure schematic view of the device is provided for the utility model.

[0016] Figure 2 A tank body inside structure schematic view of the device is provided for the utility model.

[0017] Figure 3 A screening frame connecting structure schematic view of the device is provided for the utility model.

[0018] Figure 4 A material guide cylinder cross-sectional structure schematic view of the device is provided for the utility model.

[0019] Legend: 1, tank body; 11, liquid discharge pipe; 12, liquid inlet pipe; 13, air inlet pipe; 14, air outlet pipe; 15, baffle; 151, through hole; 2, circulating pump; 21, conveying pipe; 22, spray pipe; 23, fixed rod; 24, atomizing nozzle; 3, drive motor; 31, connecting shaft; 32, spiral conveying blade; 4, screening frame; 41, filter screen; 42, adapter cylinder; 5, guide plate; 51, fixed block; 6, material guide cylinder; 601, cavity. DETAILED DESCRIPTION

[0020] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are different from the description, and therefore, the present application is not limited to the specific embodiments disclosed in the following description. EMBODIMENT

[0022] As Figures 1-4 shown, the present application provides a technical scheme: a device for continuous water outlet and continuous desulfurization of sulfur-containing tail gas, comprising a tank body 1, the surface bottom end of the tank body 1 is fixedly connected with a liquid discharge pipe 11 and a liquid inlet pipe 12 respectively, the outer wall of the tank body 1 is fixedly connected with an air inlet pipe 13 on one side, the top of the tank body 1 is fixedly connected with an air outlet pipe 14, the surface bottom end of the tank body 1 is fixedly installed with a circulating pump 2, the water inlet end of the circulating pump 2 is communicated with the inside of the tank body 1, the water outlet end of the circulating pump 2 is fixedly connected with a conveying pipe 21, the top of the conveying pipe 21 is fixedly connected with a spray pipe 22, the spray pipe 22 is located at the inside top end of the tank body 1, the outer wall of the tank body 1 is fixedly installed with a drive motor 3, the inside of the tank body 1 is fixedly installed with a screening frame 4, the top of the screening frame 4 is provided with a guide plate 5, the outer wall of the spray pipe 22 is fixedly connected with a fixed rod 23 at both ends, the side surface of the two fixed rods 23 is fixedly connected with the inner wall of the tank body 1, the top of the fixed rod 23 is fixedly installed with an atomizing nozzle 24, the inside top end of the tank body 1 is fixedly installed with a baffle 15, the top of the baffle 15 is provided with a through hole 151.

[0023] In this embodiment, sulfur-containing tail gas enters the interior of the tank body from the air inlet pipe 13, and a lime water solution is added to the liquid inlet pipe 12 so that the solution is stored inside the tank body 1. The circulation pump 2 is then started to draw the solution into the spray pipe 22 through the delivery pipe 21, and then it is sprayed out through each atomizing nozzle 24, so that the interior of the tank body 1 is filled with solution water mist, and the sulfur dioxide in the gas is desulfurized. When the gas enters the interior of the tank body, it will float and accumulate at the bottom of the baffle 15, and a small amount of gas will pass through the through hole 151 and be discharged from the exhaust pipe 14, thereby increasing the residence time of the gas inside the tank body 1. Since the atomizing nozzle 24 is angled upward, the gas accumulated at the bottom of the baffle 15 is sprayed for the second time for desulfurization, and then the water mist slowly descends inside the tank body 1, so that the water mist fully covers the interior of the tank body 1, thereby improving the desulfurization effect on the sulfur-containing tail gas. Example

[0024] like Figures 1-4 As shown, the interior of the screening frame 4 is a hollow structure, the bottom of the screening frame 4 is fixedly connected to a filter screen 41, the filter screen 41 is conical, the bottom of the filter screen 41 is fixedly connected to a connecting tube 42, the side of the guide plate 5 is fixedly connected to a fixed block 51, the fixed block 51 is fixedly installed on the inner side of the screening frame 4, the fixed block 51 is an inverted cone, the interior of the tank body 1 is fixedly installed with a material guide cylinder 6, one end of the material guide cylinder 6 is located outside the tank body 1, a cavity 601 is opened inside the material guide cylinder 6, the top of the material guide cylinder 6 is fixedly connected to the bottom of the connecting tube 42, the output shaft of the drive motor 3 is fixedly connected to the connecting shaft 31, one side of the connecting shaft 31 is fixedly connected to a spiral conveying blade 32, and the spiral conveying blade 32 is movably installed inside the cavity 601.

[0025] In this embodiment, when the lime water solution is desulfurizing the sulfur-containing tail gas, the solid crystals generated by the reaction of sulfur dioxide and the solution fall downward, slide through the guide plate 5 to the top of the filter 41, and the solution passes through the filter 41 and is stored inside the tank body 1, while the crystals are filtered at the top of the filter 41 and slide to the inside of the connecting cylinder 42, so as to prevent the crystals from mixing in the solution and causing blockage of the circulation pump 2. The crystals are uniformly collected inside the guide cylinder 6, and the drive motor 3 is started to drive the connecting shaft 31 and the spiral conveying blade 32 to rotate, so as to push the crystals out from the inside of the guide cylinder 6.

[0026] The working principle of the embodiment is that: lime water solution is added to the liquid inlet pipe 12, the circulating pump 2 is started to spray the solution through each atomizing nozzle 24, so that the tank body 1 is filled with solution water mist, the sulfur-containing tail gas enters the tank body from the gas inlet pipe 13, the water mist carries out desulfurization treatment on the sulfur dioxide in the gas, and the gas floats and accumulates at the bottom of the baffle 15 when entering the tank body, a small amount of gas passes through the through hole 151 and is discharged from the gas outlet pipe 14, so as to prolong the residence time of the gas in the tank body 1, and since the angle of the atomizing nozzle 24 is upward, the gas accumulated at the bottom of the baffle 15 is subjected to secondary spraying desulfurization, the desulfurization effect on the sulfur-containing tail gas is improved, the solid crystal generated by the reaction of sulfur dioxide and the solution falls and slides to the top of the filter screen 41, the solution passes through the filter screen 41 and is stored in the tank body 1, and the crystal is filtered on the top of the filter screen 41 and slides into the adapter cylinder 42, the driving motor 3 is started to drive the connecting shaft 31 and the spiral conveying blade 32 to rotate, so as to push the crystal out of the material guiding cylinder 6, and the crystal is convenient to clean.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still fall within the protection scope of the present application.

Claims

1. A device for continuous desulphurization of continuous water out sulphur exhaust gas comprising a tank body (1), characterized in that: The surface bottom end of the tank body (1) is fixedly connected with a liquid discharge pipe (11) and a liquid inlet pipe (12), respectively, the outer wall of the tank body (1) is fixedly connected with an air inlet pipe (13), the top of the tank body (1) is fixedly connected with an air outlet pipe (14), the surface bottom end of the tank body (1) is fixedly installed with a circulating pump (2), the water inlet end of the circulating pump (2) is communicated with the inside of the tank body (1), the water outlet end of the circulating pump (2) is fixedly connected with a conveying pipe (21), the top of the conveying pipe (21) is fixedly connected with a spray pipe (22), the spray pipe (22) is located at the inside top end of the tank body (1), the outer wall of the tank body (1) is fixedly installed with a driving motor (3), the inside of the tank body (1) is fixedly installed with a screening frame (4), the top of the screening frame (4) is provided with a flow guide plate (5), the outer wall of the spray pipe (22) is fixedly connected with a fixed rod (23) at both ends, the side surface of the two fixed rods (23) is fixedly connected with the inner wall of the tank body (1), the top of the fixed rod (23) is fixedly installed with an atomizing nozzle (24), the inside top end of the tank body (1) is fixedly installed with a baffle (15), the top of the baffle (15) is provided with a through hole (151), the inside of the screening frame (4) is a hollow structure, the bottom of the screening frame (4) is fixedly connected with a filter screen (41), the filter screen (41) is conical, the bottom of the filter screen (41) is fixedly connected with a connecting cylinder (42), the inside of the tank body (1) is fixedly installed with a material guiding cylinder (6), one end of the material guiding cylinder (6) is located outside the tank body (1), the inside of the material guiding cylinder (6) is provided with a cavity (601), the top of the material guiding cylinder (6) is fixedly connected with the bottom of the connecting cylinder (42), the output shaft of the driving motor (3) is fixedly connected with a connecting shaft (31), one side of the connecting shaft (31) is fixedly connected with a spiral conveying blade (32), the spiral conveying blade (32) is movably installed in the inside of the cavity (601).

2. A device for continuous desulphurization of a continuous water out sulphur containing exhaust gas as claimed in claim 1, wherein: The side surface of the flow guide plate (5) is fixedly connected with a fixed block (51), the fixed block (51) is fixedly installed on the inside of the screening frame (4), and the fixed block (51) is inverted conical.

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