Chemical fuel gas desulfurization tower

Abstract

The utility model relates to a chemical fuel gas desulfurization tower. The chemical fuel gas drives the protective cover to move upwards, so that the chemical fuel gas is conveyed to the lower end of an inner cavity of the desulfurizing tower body through a first gas outlet and a fourth gas outlet so as to react with slurry and be desulfurized, and the chemical fuel gas moves to the middle of the top end of an umbrella-shaped guide plate from the first gas outlet; chemical fuel gas gathered in the middle of the umbrella-shaped guide plate is conveyed to the upper end of the umbrella-shaped guide plate through a second gas outlet, a motor is started, a rotating rod controls a plurality of stirring rods to rotate, the stirring rods stir slurry in the inner cavity of the desulfurization tower body, the chemical fuel gas in the slurry can be driven to react with the slurry, and the desulfurization effect is improved. And through the arrangement of a plurality of third gas outlets, clustered chemical gas bubbles are conveniently scattered, desulfurization of the chemical gas in slurry is promoted, finally, the chemical gas flows to the upper end of the inner cavity of the desulfurization tower body, the slurry is sprayed through a spraying head for desulfurization, and the desulfurized chemical gas is conveyed to the outside of the desulfurization tower body through a gas outlet pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization tower technical field especially is related to a chemical gas desulfurization tower. BACKGROUND

[0002] The main chemical elements of petroleum are carbon, hydrogen, sulfur, nitrogen and oxygen. In order to prevent air pollution, it is necessary to carry out desulfurization treatment on the gas generated during petrochemical production.

[0003] For example, the specific content of a desulfurization tower disclosed in Chinese patent application No. CN202320101684.9 is as follows: during flue gas desulfurization, first open the first and second two-way valves, use the pump press to fill the desulfurization tower body with limestone slurry, and after filling to a certain height, close the second two-way valve to continuously irrigate the limestone slurry, start the spray pipe to spray the slurry, adjust the first two-way valve to control the height of the slurry in the tower, start the one-way valve and the air blower to inject sulfur-containing flue gas into the shunt pipe through the flue gas pipe, and the gas is shunted by the shunt pipe to make the flue gas enter the slurry in the form of small bubbles, the sulfur-containing bubbles fully contact the limestone slurry, the bubbles can stay and diffuse in the liquid to fully desulfurize, and when the bubbles float to the surface of the slurry, the flue gas is sprayed by the spray pipe for secondary desulfurization, which can fully desulfurize the flue gas, the filtered gas meets the discharge standard and is discharged from the discharge port, and the monitoring device detects the pH value of the slurry in the tower in real time. When the slurry meets the recycling standard, the slurry can be adjusted and updated. However, the above structure has the following technical problems:

[0004] During desulfurization, the gas enters the slurry through the flue gas pipe, the shunt pipe and the shunt port for primary desulfurization. After the gas passes through the shunt port, the gas will gather at the shunt port and move upward, so that the gas near the shunt pipe is more than the gas far from the shunt pipe. In the actual desulfurization process, the gas near the shunt pipe will move towards the discharge port, and when the slurry is sprayed by the spray pipe for secondary desulfurization of the gas, sulfur dioxide gas will still be discharged into the atmosphere through the discharge port. Therefore, the above structure cannot fully desulfurize the chemical gas. UTILITY MODEL CONTENTS

[0005] To solve the problem of difficult full desulfurization of chemical gas in the background art, the utility model provides the following technical scheme:

[0006] A chemical gas desulfurization tower, comprising a desulfurization tower body.

[0007] A first liquid inlet pipe and a second liquid inlet pipe for conveying slurry into the desulfurization tower body are installed on the desulfurization tower body. The first liquid inlet pipe is arranged at the middle part of the desulfurization tower body, and the second liquid inlet pipe is arranged at the upper part of the desulfurization tower body. A plurality of spray heads are arranged on the second liquid inlet pipe.

[0008] The inner cavity lower end of the desulfurization tower body is provided with a gas guiding structure for conveying chemical gas to the inside of the desulfurization tower body, and the middle part of the inner cavity of the desulfurization tower body is provided with a stirring device for stirring slurry.

[0009] The gas guiding structure comprises a gas conveying pipe for conveying chemical gas, and the upper end of the gas conveying pipe is provided with an umbrella-shaped guiding plate for guiding chemical gas.

[0010] Further, the lower end of the desulfurization tower body is provided with a supporting base for supporting the desulfurization tower body, the upper end of the inner cavity of the desulfurization tower body is provided with a limiting frame for limiting the stirring device, the lower end of the desulfurization tower body is provided with a first liquid outlet pipe for discharging slurry to the outside of the desulfurization tower body, and the upper end of the desulfurization tower body is provided with a gas outlet pipe for discharging gas to the outside of the desulfurization tower body.

[0011] Further, one end of the second liquid inlet pipe is provided with a plurality of spray heads, the upper end of the inner cavity of the limiting frame is provided with a plurality of limiting seats,

[0012] The front and rear ends of the limiting frame are processed with a plurality of heat dissipation grooves, the middle part of the lower end of the limiting frame is provided with a limiting cylinder for limiting the stirring device, the upper end of the limiting frame is provided with a sealing cover for sealing the limiting frame, and the edge of the sealing cover is provided with a plurality of bolts for locking the sealing cover in cooperation with the limiting seat.

[0013] Further, a plurality of first gas outlets for allowing chemical gas to flow out are formed in the upper pipe wall of the gas conveying pipe, and the upper end of the gas conveying pipe is provided with a connecting rod for supporting the umbrella-shaped guiding plate.

[0014] Further, a plurality of second gas outlets for allowing chemical gas to flow through are formed in the middle part of the umbrella-shaped guiding plate.

[0015] Further, the stirring device comprises a rotating rod, the upper end of the rotating rod is provided with a motor for controlling the rotating rod to rotate, the motor is installed in the limiting frame, a plurality of stirring rods for stirring slurry are installed in the middle part of the rod body of the rotating rod, and a plurality of third gas outlets are formed in the middle part of the stirring rod.

[0016] Further, the upper end of the gas conveying pipe is provided with a protective cover for opening and closing the first gas outlet, the middle part of the protective cover is processed with a plurality of fourth gas outlets in communication with the first gas outlet, the inner wall of the upper end of the protective cover is provided with a limiting tube, and the upper end of the protective cover is provided with a reset spring for controlling the protective cover to reset.

[0017] Compared with the prior art, the desulfurization tower body has the advantages that:

[0018] The chemical gas is transported through the gas conveying pipe, and the chemical gas is transported to the lower end of the inner cavity of the desulfurization tower body, reacts with the slurry and is desulfurized, moves to the middle part of the top of the umbrella-shaped guide plate, and is gathered in the middle part of the umbrella-shaped guide plate, and the chemical gas is transported to the upper end through the umbrella-shaped guide plate, the slurry in the inner cavity of the desulfurization tower body is stirred by the stirring device, which helps to drive the chemical gas in the slurry to react with the slurry, promotes the desulfurization of the chemical gas in the slurry, and finally the chemical gas flows to the upper end of the inner cavity of the desulfurization tower body, and the desulfurized chemical gas is transported to the outside of the desulfurization tower body through the gas outlet pipe.

[0019] The gas guiding structure makes the chemical gas move upwards gradually and is not easy to gather together, the stirring of the stirring device helps the chemical gas to react in the slurry, and the reaction of the slurry sprayed by the spraying head and the small amount of residual sulfur dioxide in the chemical gas is used to fully desulfurize the sulfur dioxide in the chemical gas. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the gas guiding structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection of the gas conveying pipe and the protective cover of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the stirring device of the utility model;

[0024] Figure 5 It is an enlarged view of A of the utility model 1;

[0025] Figure 6 It is an installation schematic diagram of the limiting frame of the utility model.

[0026] In the drawings, the names of the parts represented by the reference signs are as follows:

[0027] 100-desulfurization tower body, 110-supporting base, 120-limiting frame, 121-limiting seat, 122-heat dissipation groove, 123-limiting cylinder, 124-sealing cover, 125-bolt, 130-first liquid inlet pipe, 140-second liquid inlet pipe, 141-spraying head, 150-first liquid outlet pipe, 160-gas outlet pipe;

[0028] 200-gas guiding structure, 210-gas conveying pipe, 211-first gas outlet, 212-connecting rod, 220-umbrella-shaped guiding plate, 221-second gas outlet, 230-protective cover, 231-fourth gas outlet, 232-limiting pipe, 233-return spring;

[0029] 300-stirring device, 310-rotating rod, 311-motor, 312-stirring rod, 313-third gas outlet. DETAILED DESCRIPTION

[0030] The preferred specific embodiments for implementing the present application are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0031] Please refer to Figures 1-5 The chemical gas desulfurization tower comprises a desulfurization tower body 100, a first liquid inlet pipe 130 and a second liquid inlet pipe 140 are installed on the left side of the desulfurization tower body 100 and used for conveying slurry into the desulfurization tower body 100, a plurality of spray heads 141 are installed at one end of the second liquid inlet pipe 140, the slurry is sprayed on the upper end of the inner cavity of the desulfurization tower body 100 through the plurality of spray heads 141, so that the chemical gas is desulfurized, and the first liquid inlet pipe 130 is used for conveying the slurry to the lower end of the inner cavity of the desulfurization tower body 100, the slurry is extracted through an existing slurry conveying pump, and the slurry is conveyed to the lower end of the inner cavity of the desulfurization tower body 100 through the first liquid inlet pipe 130, the slurry is conveyed into the desulfurization tower body 100 through the first liquid inlet pipe 130, the slurry reaches a predetermined position in the desulfurization tower body 100, and the first liquid inlet pipe 130 stops conveying the slurry, and the spray head 141 is used for desulfurizing sulfur dioxide in the chemical gas through the second liquid inlet pipe 140.

[0032] A gas guiding structure 200 for conveying the chemical gas into the desulfurization tower body 100 is installed at the lower end of the inner cavity of the desulfurization tower body 100, the gas guiding structure 200 comprises a gas conveying pipe 210 used for conveying the chemical gas, and an umbrella-shaped guiding plate 220 is installed at the upper end of the gas conveying pipe 210 and used for guiding the chemical gas.

[0033] A plurality of first gas outlets 211 for the outflow of chemical gas are formed in the upper wall of the gas conveying pipe 210, and a connecting rod 212 for supporting the umbrella-shaped guide plate 220 is mounted on the upper end of the gas conveying pipe 210, and a threaded hole is formed in the middle of the top end of the connecting rod 212, and the umbrella-shaped guide plate 220 is fixed on the connecting rod 212 by bolts. A plurality of second gas outlets 221 for the flow of chemical gas are formed in the middle of the umbrella-shaped guide plate 220, and the existing fan is used to control the conveying of chemical gas through the gas conveying pipe 210, so that the chemical gas is conveyed to the lower end of the inner cavity of the desulfurization tower body 100 through the plurality of first gas outlets 211, and the chemical gas reacts with the slurry after flowing out of the first gas outlets 211, and the chemical gas moves from the first gas outlets 211 to the middle of the top end of the umbrella-shaped guide plate 220, and the chemical gas gathered in the middle of the umbrella-shaped guide plate 220 is conveyed to the upper end of the umbrella-shaped guide plate 220 through the plurality of second gas outlets 221 on the umbrella-shaped guide plate 220.

[0034] The umbrella-shaped guide plate 220 is arranged to make the chemical gas flow out of the first gas outlets 211 and then concentrate in the middle of the umbrella-shaped guide plate 220. Since the second gas outlets 221 in the middle of the umbrella-shaped guide plate 220 cannot quickly convey the chemical gas upward, when more chemical gas is gathered in the middle of the umbrella-shaped guide plate 220, the chemical gas gradually moves to the edge of the umbrella-shaped guide plate, so that the chemical gas flows upward from more second gas outlets 221.

[0035] A protective cover 230 for opening and closing the first gas outlets 211 is mounted on the upper end of the gas conveying pipe 210, a plurality of fourth gas outlets 231 communicating with the first gas outlets 211 are formed in the middle of the protective cover 230, a limiting tube 232 is fixedly installed on the inner wall of the upper end of the protective cover 230, a reset spring 233 for controlling the reset of the protective cover 230 is mounted on the upper end of the protective cover 230, when desulfurization of chemical gas is needed, the chemical gas moves to the inside of the limiting tube 232 through the inner cavity of the gas conveying pipe 210, as the pressure at the upper end of the gas conveying pipe 210 increases, the limiting tube 232 drives the protective cover 230 to move upward, the plurality of fourth gas outlets 231 on the protective cover 230 move upward synchronously, so that the fourth gas outlets 231 are aligned with the first gas outlets 211, so that the chemical gas flows into the inner cavity of the desulfurization tower body 100 from the first gas outlets 211 and the fourth gas outlets 231 in turn.

[0036] When the gas pressure of the continuous delivery of the chemical gas is small, the protective cover 230 can be intermittently moved up and down, and the first gas outlet 211 is intermittently opened and closed, the range of the chemical gas gathered at the lower end of the umbrella-shaped guide plate 220 is small, and the chemical gas is desulfurized in the desulfurization tower body. When the gas pressure of the continuous delivery of the chemical gas is large, the protective cover 230 can be directly pushed upwards, so that the protective cover 230 is always in an open state to the first gas outlet 211, which is convenient for the chemical gas to be delivered to the desulfurization tower body 100. When the chemical gas stops delivering, the return spring 233 pushes the protective cover 230 downwards, so that the protective cover 230 closes the first gas outlet 211, avoiding the backflow of the slurry into the gas delivery pipe 210.

[0037] The inner cavity of the desulfurization tower body 100 is provided with a stirring device 300 for stirring the slurry. Through the stirring of the stirring device 300, the agglomerated chemical gas bubbles can be dispersed, which helps the chemical gas to fully react with the slurry for desulfurization.

[0038] The lower end of the desulfurization tower body 100 is provided with a support base 110 for supporting the desulfurization tower body 100, and the upper end of the inner cavity of the desulfurization tower body 100 is provided with a limiting frame 120 for limiting the stirring device 300. The limiting frame 120 is fixedly welded on the side walls of the front and rear ends of the desulfurization tower body 100, and the height of the slurry in the inner cavity of the desulfurization tower body 100 is lower than the installation height of the limiting frame 120.

[0039] The lower end of the desulfurization tower body 100 is provided with a first liquid outlet pipe 150 for discharging the slurry outside the desulfurization tower body 100, the lower end of the inner cavity of the desulfurization tower body 100 is provided with a detection device for testing the acidity and alkalinity of the slurry, so as to replace the slurry in time, and the upper end of the desulfurization tower body 100 is provided with a gas outlet pipe 160 for discharging gas outside the desulfurization tower body 100.

[0040] The limiting frame 120 is a square frame body, a plurality of limiting seats 121 are fixedly installed on the upper end inner wall of the limiting frame 120, threaded holes are formed in the middle portions of the limiting seats 121, a plurality of heat dissipation grooves 122 are formed on the front and rear ends of the limiting frame 120, and the heat dissipation grooves 122 penetrate through the front and rear end side walls of the desulfurization tower body 100, so that the inner cavity of the limiting frame 120 can be connected with the outside of the desulfurization tower body 100, and heat dissipation is facilitated. A limiting cylinder 123 for limiting the stirring device 300 is fixedly installed on the middle portion of the lower end of the limiting frame 120, a sealing cover 124 for sealing the limiting frame 120 is installed on the upper end of the limiting frame 120, and a slot for placing the sealing cover 124 is formed in the middle portion of the upper end of the limiting frame, a plurality of bolts 125 for locking the sealing cover 124 in cooperation with the limiting seats 121 are installed on the edge of the sealing cover 124, the bolts 125 are screwed into the threaded holes in the middle portions of the limiting seats 121, so as to fix the sealing cover 124 on the upper end of the limiting frame 120. Since the front and rear ends of the limiting frame 120 are welded on the side walls of the desulfurization tower body 100, and the inner cavity of the limiting frame 120 is closed by the sealing cover 124, when the slurry spraying head 141 sprays slurry, the slurry will not flow into the inside of the limiting frame 120, and when the motor 311 is working, the gas outside the desulfurization tower body 100 can flow in the limiting frame 120 through the heat dissipation grooves 122, thereby facilitating heat dissipation of the motor 311.

[0041] The stirring device 300 comprises a rotating rod 310, a motor 311 for controlling the rotation of the rotating rod 310 is installed on the upper end of the rotating rod 310, and the motor 311 is installed in the limiting frame 120, a plurality of stirring rods 312 for stirring the slurry are fixedly installed on the middle portion of the rod body of the rotating rod 310, a plurality of third gas outlets 313 are formed in the middle portions of the stirring rods 312, and the third gas outlets 313 can accelerate the efficiency of dispersing the clustered gas bubbles.

[0042] When the chemical gas flows to the upper end of the umbrella-shaped guide plate 220 through the second gas outlet 221, the motor 311 is started, the rotating rod 310 controls the rotation of the plurality of stirring rods 312, the stirring rods 312 stir the slurry in the inner cavity of the desulfurization tower body 100, which helps to drive the chemical gas in the slurry to react with the slurry, and the plurality of third gas outlets 313 facilitate the dispersion of the clustered chemical gas bubbles, the desulfurization of the chemical gas in the slurry, and finally the chemical gas is transported to the outside of the desulfurization tower body 100 through the gas outlet pipe 160.

[0043] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. Furthermore, any non-creative modification of the present application made by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. A chemical gas desulfurization tower, comprising a desulfurization tower body (100), characterized in that: The desulfurization tower body (100) is equipped with a first inlet pipe (130) and a second inlet pipe (140) for conveying slurry into the interior of the desulfurization tower body (100); the first inlet pipe (130) is located in the middle of the desulfurization tower body (100), and the second inlet pipe (140) is located in the upper part of the desulfurization tower body (100), and a spray head (141) is provided on the second inlet pipe (140). The lower end of the inner cavity of the desulfurization tower body (100) is equipped with a gas guiding structure (200) for conveying chemical fuel gas into the interior of the desulfurization tower body (100), and a stirring device (300) for stirring the slurry is installed in the middle of the inner cavity of the desulfurization tower body (100). The gas guiding structure (200) includes a gas conveying pipe (210) for conveying chemical fuel gas, and an umbrella-shaped guide plate (220) for guiding the chemical fuel gas is installed at the upper end of the gas conveying pipe (210). The upper end of the desulfurization tower body (100) is equipped with an outlet pipe (160) for discharging gas to the outside of the desulfurization tower body (100).

2. The chemical gas desulfurization tower according to claim 1, characterized in that: The lower end of the desulfurization tower body (100) is equipped with a support base (110) for supporting the desulfurization tower body (100), the upper end of the inner cavity of the desulfurization tower body (100) is equipped with a limiting frame (120) for limiting the stirring device (300), and the lower end of the desulfurization tower body (100) is equipped with a first liquid outlet pipe (150) for discharging slurry to the outside of the desulfurization tower body (100).

3. A chemical gas desulfurization tower according to claim 2, characterized in that: Multiple spray heads (141) are installed on the second liquid inlet pipe (140). Multiple limit seats (121) are installed on the upper end of the inner cavity of the limit frame (120). Multiple heat dissipation grooves (122) are machined on the front and rear ends of the limit frame (120). A limit cylinder (123) for limiting the stirring device (300) is installed in the middle of the lower end of the limit frame (120). A sealing cover (124) for sealing the limit frame (120) is installed on the upper end of the limit frame (120). Multiple bolts (125) for locking the sealing cover (124) with the limit seats (121) are installed on the edge of the sealing cover (124).

4. A chemical gas desulfurization tower according to claim 1, characterized in that: The upper wall of the gas delivery pipe (210) is provided with a plurality of first gas outlets (211) for supplying chemical fuel gas. The upper end of the gas delivery pipe (210) is equipped with a connecting rod (212) for supporting the umbrella-shaped guide plate (220).

5. A chemical gas desulfurization tower according to claim 1, characterized in that: The umbrella-shaped guide plate (220) has multiple second gas outlets (221) in the middle for the flow of chemical gases.

6. A chemical gas desulfurization tower according to claim 2, characterized in that: The stirring device (300) includes a rotating rod (310), the upper end of which is equipped with a motor (311) for controlling the rotation of the rotating rod (310), and the motor (311) is installed in a limiting frame (120). Multiple stirring rods (312) for stirring the slurry are installed in the middle of the rod body of the rotating rod (310), and multiple third air outlets (313) are machined in the middle of the stirring rods (312).

7. A chemical gas desulfurization tower according to claim 2, characterized in that: The upper end of the gas delivery pipe (210) is equipped with a protective cover (230) for opening and closing the first gas outlet (211). The middle part of the protective cover (230) is machined with a plurality of fourth gas outlets (231) that are connected to the first gas outlet (211). The upper inner wall of the protective cover (230) is equipped with a limit tube (232). The upper end of the protective cover (230) is equipped with a reset spring (233) for controlling the reset of the protective cover (230).

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