Elevated flue gas wet desulfurization tower

Abstract

The utility model discloses an elevated wet flue gas desulfurization tower which comprises a tower body, a gas inlet pipe is reserved at the bottom end of one side wall of the tower body, a reversing assembly is connected to an output port of the gas inlet pipe, a bearing plate of an I-shaped structure is installed at the upper end of the reversing assembly, and two sets of sponge pads are symmetrically fixed to the two sides of the bearing plate. The gas desulfurization device has the beneficial effects that a double-station structure and the reversing assembly are matched and combined for use, and in the gas desulfurization process, the electric push rod in the reversing assembly drives the reversing plug to move, so that the circulating direction of gas is changed by changing the position of the reversing plug in the reversing pipe; the two groups of sponge mats are alternately put into use, and the other group of sponge mats can be cleaned when one group of sponge mats are put into use, so that the tower body is ensured to run without shutdown during cleaning, the desulfurization tower continuously and efficiently desulfurizes coal gas, and the use performance is high.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to an elevated flue gas wet desulfurization tower. Background Art

[0002] Large-scale desulfurization equipment for flue gas desulfurization is called a desulfurization tower, while small-scale desulfurization and dust removal equipment used for flue gas desulfurization of coal-fired industrial boilers and kilns is often called a desulfurization dust collector. In desulfurization towers and desulfurization dust collectors, the flue gas containing SO2 is chemically absorbed.

[0003] Patent No. CN220352056U discloses a coal gas wet desulfurization tower that is easy to clean, comprising a desulfurization tower, wherein a pipeline at the lower end of the desulfurization tower is connected to an air intake box, a spray assembly is provided on the desulfurization tower, and a conveying assembly is provided at the lower end of the spray assembly. The characteristics of the desulfurization tower are as follows: a switch door is provided at the front end of the desulfurization tower, and a cleaning assembly is provided on one side of the upper end of the air intake box;

[0004] Although the above patent unlocks the switch door through the sliding component during use, manually rotates the switch door, and quickly cleans the interior, and cooperates with the sealing gasket on the outside of the curved door and the groove on the desulfurization tower to assist in increasing the sealing, ensuring the safety of the equipment while preventing leakage and waste of resources, but in the actual cleaning process, the desulfurization tower needs to be stopped before cleaning, which leads to interruption of desulfurization and makes it impossible for the desulfurization tower to continuously and efficiently desulfurize the coal gas, resulting in its low performance. Therefore, an elevated flue gas wet desulfurization tower is urgently needed to solve the above problems. Utility Model Content

[0005] (1) Technical issues to be resolved

[0006] The technical problem to be solved by the present invention is aimed at the status quo of the existing technology. An elevated flue gas wet desulfurization tower with high performance is provided, which adopts a double-station structure and can be cleaned without stopping the machine, thereby maintaining the desulfurization tower to continuously and efficiently desulfurize the coal gas.

[0007] (2) Technical solution

[0008] The present invention is realized through the following technical solution: The present invention proposes an elevated flue gas wet desulfurization tower, comprising a tower body, an air inlet pipe being reserved at the bottom end of one side wall of the tower body, a reversing assembly being connected to the output port of the air inlet pipe, an I-shaped bearing plate being mounted on the upper end of the reversing assembly, two groups of sponge pads being symmetrically fixed on both sides of the bearing plate, a grid plate being arranged under the sponge pad, a spray assembly being mounted on one side wall of the tower body, two groups of air guide pipes being symmetrically mounted on the upper end of the bearing plate, an exhaust pipe being reserved at the top end of the tower body, and a drain pipe being reserved at the bottom end of the tower body.

[0009] Furthermore, the reversing assembly includes a T-shaped reversing tube connected to the output end of the intake pipe, two groups of guide tubes are symmetrically arranged on the upper end of the reversing tube, the guide tubes pass through the bottom wall of the supporting plate, and multiple groups of air guide cavities are arranged in an array on the side wall of the guide tube.

[0010] By adopting the above technical solution, the coal gas enters the reversing pipe through the air inlet pipe, and the reversing pipe can change the flow direction of the coal gas so that the coal gas is discharged into the tower body through the gas guide cavity on the specific guide pipe.

[0011] Furthermore, the reversing assembly also includes an electric push rod fixed in the reversing tube, and a reversing plug matching the inner diameter of the reversing tube is installed on the movable end of the electric push rod.

[0012] By adopting the above technical solution, the electric push rod can drive the reversing plug to move in the reversing tube, and then change the flow direction of the gas by changing its position in the reversing tube.

[0013] Furthermore, the bearing plate is welded in the tower body, the sponge pad is fixed on the grid plate, the grid plate is welded on the bearing plate, and a plurality of overflow holes are arranged in an array on the bottom wall of the bearing plate.

[0014] By adopting the above technical solution, the coal gas enters the sponge pad through the grid plate, the sponge pad can filter the dust particles in the coal gas, and the overflow hole can discharge the slurry after contact with the coal gas into the bottom end of the tower body.

[0015] Furthermore, the air guide pipe is welded to both sides of the top of the bearing plate, a one-way valve is provided on the air guide pipe, and two sets of inspection covers are installed at positions on the side wall of the tower body corresponding to the sponge pad.

[0016] By adopting the above technical solution, the coal gas treated and desulfurized by the spray pipe is discharged through the gas guide pipe. The one-way valve can make the flow direction of the gas in the gas guide pipe one-way. The sponge pad can be cleaned by opening the inspection cover.

[0017] Furthermore, the spray assembly includes spray pipes symmetrically arranged on both sides of the supporting plate, multiple groups of atomizing nozzles are installed in an array at the bottom end of the spray pipe, and a solenoid valve is installed on the spray pipe through a thread, and the solenoid valve is arranged on the outside of the tower body.

[0018] By adopting the above technical solution, the spray liquid is sprayed out through the atomizing nozzle on the spray pipe and contacts the coal gas, thereby desulfurizing the coal gas. The solenoid valve controls the on-off of the spray pipe.

[0019] Furthermore, the spray assembly also includes a diverter pipe connected to one end of the spray pipe, a suction pipe is provided in the middle of the bottom end of the diverter pipe, the suction pipe and the diverter pipe form a T-shaped structure, and a pump body is provided on the suction pipe.

[0020] By adopting the above technical solution, the suction pipe can be connected to the liquid supply mechanism of the external spray pipe, and the pump body pumps the spray liquid through the diversion pipe and the spray pipe to the atomizing nozzle through the suction pipe.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The utility model adopts a double-station structure and a matching combination of a reversing component. During the desulfurization process of coal gas, the electric push rod in the reversing component drives the reversing plug to move, and then changes the flow direction of the coal gas by changing its position in the reversing pipe, so that the two groups of sponge pads are put into use alternately. When one group of sponge pads is put into use, the other group of sponge pads can be cleaned, ensuring that the tower body does not stop running during cleaning, so that the desulfurization tower can continuously and efficiently desulfurize the coal gas and has high performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of an elevated flue gas wet desulfurization tower described in the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a tower body in an elevated flue gas wet desulfurization tower described in the utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of a reversing tube in an elevated flue gas wet desulfurization tower described in the utility model;

[0027] Figure 4 It is a structural schematic diagram of a spray assembly in an elevated flue gas wet desulfurization tower described in the utility model.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Tower body; 2. Inspection cover; 3. Spray assembly; 301. Extraction tube; 302. Pump body; 303. Diverter pipe; 304. Spray pipe; 305. Solenoid valve; 306. Atomizing nozzle; 4. Air inlet pipe; 5. Exhaust pipe; 6. Drain pipe; 7. Reversing assembly; 701. Reversing pipe; 702. Electric push rod; 703. Reversing plug; 704. Flow guide pipe; 705. Air guide cavity; 8. Loading plate; 9. Overflow hole; 10. Sponge pad; 11. Grid plate; 12. Air guide pipe; 13. One-way valve. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] like Figure 1-Figure 4 As shown, an elevated flue gas wet desulfurization tower in this embodiment includes a tower body 1, an air inlet pipe 4 is reserved at the bottom end of one side wall of the tower body 1, and a reversing component 7 is connected to the output port of the air inlet pipe 4. An I-shaped bearing plate 8 is installed on the upper end of the reversing component 7, and two groups of sponge pads 10 are symmetrically fixed on both sides of the bearing plate 8. A grid plate 11 is provided below the sponge pad 10, a spray component 3 is installed on one side wall of the tower body 1, and two groups of air guide pipes 12 are symmetrically installed on the upper end of the bearing plate 8. An exhaust pipe 5 is reserved at the top of the tower body 1, and a drain pipe 6 is reserved at the bottom end of the tower body 1. The coal gas enters the reversing component 7 through the air inlet pipe 4, and the reversing component 7 controls the flow direction of the coal gas so that the coal gas flows into a group of sponge pads 10. The sponge pads 10 filter the dust particles in the coal gas, and the filtered coal gas contacts the treatment liquid sprayed from the spray component 3 for desulfurization treatment. The treated coal gas is discharged through the exhaust pipe 5, and the treated slurry is discharged through the drain pipe 6.

[0032] like Figure 2 and Figure 3 As shown, in this embodiment, the reversing assembly 7 includes a T-shaped reversing tube 701 connected to the output end of the air inlet pipe 4, and two groups of guide tubes 704 are symmetrically arranged on the upper end of the reversing tube 701. The guide tubes 704 pass through the bottom wall of the bearing plate 8, and multiple groups of air guide cavities 705 are arranged in an array on the side wall of the guide tube 704. The reversing assembly 7 also includes an electric push rod 702 fixed in the reversing tube 701, and a reversing plug 703 matching the inner diameter of the reversing tube 701 is installed on the movable end of the electric push rod 702. During the gas circulation process, the reversing plug 703 is driven by the electric push rod 702 to move in the reversing tube 701. Changing its position can control the flow direction of the gas, and then the gas alternately passes through the air guide cavities 705 on the two groups of guide tubes 704 and enters the sponge pad 10 for dust removal.

[0033] like Figure 1 and Figure 2As shown, in this embodiment, the bearing plate 8 is welded in the tower body 1, the sponge pad 10 is fixed on the grid plate 11, the grid plate 11 is welded on the bearing plate 8, and a plurality of overflow holes 9 are arranged in an array on the bottom wall of the bearing plate 8. The air guide pipe 12 is welded on both sides of the top of the bearing plate 8, and a one-way valve 13 is provided on the air guide pipe 12. Two groups of inspection covers 2 are installed on the side wall of the tower body 1 corresponding to the sponge pad 10. The coal gas enters the sponge pad 10 through the grid plate 11, and the sponge pad 10 performs dust removal and filtration on it. The coal gas after desulfurization by the spray liquid is discharged through the air guide pipe 12. The one-way valve 13 can prevent the coal gas from flowing back, and the treated slurry falls on the bottom end of the tower body 1 through the overflow hole 9 and is finally discharged through the drain pipe 6. The sponge pad 10 can be cleaned by opening the inspection cover 2 to ensure the dust removal performance of the sponge pad 10.

[0034] like Figure 2 and Figure 4 As shown, in this embodiment, the spray assembly 3 includes a spray pipe 304 symmetrically arranged on both sides of the supporting plate 8, and a plurality of atomizing nozzles 306 are installed in an array at the bottom end of the spray pipe 304. A solenoid valve 305 is installed on the spray pipe 304 through a thread, and the solenoid valve 305 is arranged on the outside of the tower body 1. The spray assembly 3 also includes a diverter pipe 303 connected to one end of the spray pipe 304. A suction pipe 301 is provided in the middle of the bottom end of the diverter pipe 303, and the suction pipe 301 and the diverter pipe 303 form a T-shaped structure. A pump body 302 is provided on the suction pipe 301, and one end of the suction pipe 301 is connected to the liquid supply mechanism of the external spray liquid. The pump body 302 draws the spray liquid to the diversion pipe 303 and the spray pipe 304 through the suction pipe 301 and sprays it through the atomizing nozzle 306 to evenly contact the coal gas, thereby performing desulfurization treatment on it. The solenoid valve 305 can control the corresponding spray pipe 304 according to the input situation of the sponge pad 10, so that it is in an open state, while the other group of spray pipes 304 is in a closed state.

[0035] The specific implementation process of this embodiment is as follows: first, the air inlet pipe 4 is connected to the external gas pipe and one end of the extraction pipe 301 is connected to the liquid supply mechanism of the external spray liquid. During the desulfurization process of the coal gas, the coal gas enters a group of sponge pads 10 through the air inlet pipe 4, the reversing pipe 701 and a group of guide pipes 704. At this time, the sponge pads 10 perform dust removal and filtration, and the solenoid valve 305 controls the corresponding spray pipe 304 according to the input status of the sponge pad 10, so that it is in an open state, and the other group of spray pipes 304 is in a closed state. Then the pump body 302 draws the spray liquid to the diversion pipe 303 and the spray pipe 304 through the extraction pipe 301 and sprays it out through the atomizing nozzle 306 to evenly contact the coal gas, thereby performing desulfurization treatment. The coal gas after desulfurization by the spray liquid is discharged through the gas guide pipe 12, and the one-way valve 13 can prevent the coal gas from flowing back, and the treated slurry falls on the bottom end of the tower body 1 through the overflow hole 9, and is finally discharged through the drain pipe 6. When the sponge pad 10 that has been put into use needs to be cleaned, the reversing plug 703 is driven by the electric push rod 702 to move in the reversing pipe 701 to change the flow direction of the coal gas, so that another group of sponge pads 10 can be put into use. At the same time, the solenoid valve 305 performs corresponding actions to control the opening of the other group of spray pipes 304, so that the two groups of sponge pads 10 can be put into use alternately. When one group of sponge pads 10 is put into use, the other group of sponge pads 10 can be cleaned, ensuring that the tower body 1 does not stop running during cleaning, so that the desulfurization tower can continuously and efficiently desulfurize the coal gas with high performance.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elevated flue gas wet desulfurization tower, characterized by: The invention comprises a tower body (1), wherein an air inlet pipe (4) is reserved at the bottom end of one side wall of the tower body (1), a reversing assembly (7) is connected to the output port of the air inlet pipe (4), an I-shaped bearing plate (8) is installed at the upper end of the reversing assembly (7), two groups of sponge pads (10) are symmetrically fixed on both sides of the bearing plate (8), a grid plate (11) is arranged below the sponge pad (10), a spray assembly (3) is installed on one side wall of the tower body (1), two groups of air guide pipes (12) are symmetrically installed at the upper end of the bearing plate (8), an exhaust pipe (5) is reserved at the top end of the tower body (1), and a liquid discharge pipe (6) is reserved at the bottom end of the tower body (1).

2. The elevated flue gas wet desulfurization tower according to claim 1, characterized in that: The reversing assembly (7) comprises a T-shaped reversing tube (701) connected to the output end of the air inlet pipe (4), two groups of guide tubes (704) are symmetrically arranged on the upper end of the reversing tube (701), the guide tubes (704) pass through the bottom wall of the bearing plate (8), and a plurality of groups of air guide cavities (705) are arranged in an array on the side wall of the guide tube (704).

3. The elevated flue gas wet desulfurization tower according to claim 2, characterized in that: The reversing assembly (7) further comprises an electric push rod (702) fixed in the reversing tube (701), and a reversing plug (703) matching the inner diameter of the reversing tube (701) is mounted on the movable end of the electric push rod (702).

4. The elevated flue gas wet desulfurization tower according to claim 1, characterized in that: The bearing plate (8) is welded inside the tower body (1), the sponge pad (10) is fixed on the grid plate (11), the grid plate (11) is welded on the bearing plate (8), and a plurality of overflow holes (9) are arranged in an array on the bottom wall of the bearing plate (8).

5. The elevated flue gas wet desulfurization tower according to claim 4, characterized in that: The air guide pipe (12) is welded to both sides of the top of the bearing plate (8), and a one-way valve (13) is provided on the air guide pipe (12). Two sets of inspection covers (2) are installed at positions on the side wall of the tower body (1) corresponding to the sponge pad (10).

6. The elevated flue gas wet desulfurization tower according to claim 1, characterized in that: The spray assembly (3) comprises spray pipes (304) symmetrically arranged on both sides of the supporting plate (8), a plurality of groups of atomizing nozzles (306) are arrayed at the bottom ends of the spray pipes (304), and a solenoid valve (305) is threadedly mounted on the spray pipes (304), and the solenoid valve (305) is arranged outside the tower body (1).

7. The elevated flue gas wet desulfurization tower according to claim 6, characterized in that: The spray assembly (3) further comprises a diverter pipe (303) connected to one end of the spray pipe (304); a pumping pipe (301) is provided at the middle of the bottom end of the diverter pipe (303); the pumping pipe (301) and the diverter pipe (303) form a T-shaped structure; a pump body (302) is provided on the pumping pipe (301).

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