Waste gas desulfurization device for coal-fired power plant

Abstract

The utility model discloses a waste gas desulfurization device for a coal-fired power plant, and relates to the technical field of waste gas desulfurization devices. Comprising a horizontal tower body, the bottom of the horizontal tower body is fixedly provided with a box body filled with treating fluid, one side of the horizontal tower body is provided with an air inlet, the other side of the horizontal tower body is provided with an air outlet, an inner cavity of the horizontal tower body is provided with at least two groups of blocking mechanisms, each group of blocking mechanism comprises an upper baffle, a lower baffle and a first filler layer, and the top inner wall of the horizontal tower body is fixedly connected with the upper baffle; the bottom inner wall of the horizontal tower body is fixedly connected with a lower baffle, a first filler layer is arranged between the upper baffle and the lower baffle, a water pump for pumping treatment liquid in the box body is mounted on the box body, a conveying pipe is mounted on the rear side of the horizontal tower body, and a first spraying pipe is mounted in an inner cavity of the horizontal tower body. According to the waste gas desulfurization device for the coal-fired power plant, by arranging the upper baffle and the lower baffle, waste gas flows in the horizontal tower body in an S shape, the stroke of the waste gas in the horizontal tower body can be prolonged, and then it is ensured that the waste gas can make full contact with spraying liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas desulfurization devices, in particular to a waste gas desulfurization device for a coal-fired power plant. Background Art

[0002] A power plant is a power plant that converts some form of raw energy into electrical energy for fixed facilities or transportation. Coal-fired power plants produce a large amount of waste gas containing sulfide during the incineration process of power generation. In order to avoid air pollution, desulfurization equipment is used to absorb and remove sulfur dioxide in the waste gas during the waste gas emission process.

[0003] The existing waste gas desulfurization device desulfurizes the waste gas by spraying in a spray tower. The publication number is CN212119459U, which is a modular horizontal spray tower; a modular horizontal spray tower, including an air inlet pipe, a tower body, a spray system, and an exhaust port; the tower body includes a water storage cylinder, a water storage cone, and a spray cylinder; one end of the water storage cylinder is connected to the lower end of the water storage cone and the inner cavity is communicated, and the free end of the water storage cone is connected to the side of the spray cylinder; a sealing ring is provided at the connection between the air inlet pipe, the tower body, and the exhaust port, and a spray water pipe and a nozzle are arranged in the tower body; the air outlet end of the air inlet pipe is connected to one end of the tower body, and the free end of the tower body is connected to the air inlet end of the exhaust port. During the use of the horizontal spray tower, the waste gas has a short travel in the tower body, so that the contact time between the waste gas and the sprayed treatment liquid is short. Utility Model Content

[0004] The utility model provides a waste gas desulfurization device for a coal-fired power plant to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas desulfurization device for a coal-fired power plant, comprising a horizontal tower body, a box body for treating liquid is fixedly installed at the bottom of the horizontal tower body, an air inlet is provided on one side of the horizontal tower body, and an exhaust port is provided on the other side thereof, at least two groups of blocking mechanisms are provided in the inner cavity of the horizontal tower body, each group of blocking mechanisms includes an upper baffle, a lower baffle and a first packing layer, the top inner wall of the horizontal tower body is fixedly connected to the upper baffle, the bottom inner wall of the horizontal tower body is fixedly connected to the lower baffle, a first packing layer is arranged between the upper baffle and the lower baffle, a water pump for extracting the treated liquid in the box body is installed on the box body, a delivery pipe connected to the water outlet end of the water pump through a connecting pipe is installed on the rear side of the horizontal tower body, and a first spray pipe located above the first packing layer and connected to the delivery pipe through a connecting pipe is installed in the inner cavity of the horizontal tower body.

[0006] Furthermore, a second packing layer is installed on one side of the inner cavity of the horizontal tower body close to the exhaust port, and a vertically arranged second spray pipe is installed on one side of the inner cavity of the horizontal tower body located on the second packing layer close to the exhaust port, and the second spray pipe is connected to the delivery pipe through a connecting pipe.

[0007] Furthermore, a drainage hopper connected to the inner cavity of the box body is provided at the bottom of the horizontal tower body, and a filter screen is installed in the inner cavity of the drainage hopper.

[0008] Furthermore, a wire mesh demister is installed on a side of the inner cavity of the horizontal tower body close to the exhaust port.

[0009] Furthermore, an observation window is installed on the outer wall of the horizontal tower body.

[0010] Furthermore, a semiconductor refrigerator is installed on the box body.

[0011] Compared with the prior art, the utility model provides a waste gas desulfurization device for a coal-fired power plant, which has the following beneficial effects: the waste gas desulfurization device for a coal-fired power plant, by setting an upper baffle and a lower baffle, allows the waste gas to flow in an S shape in a horizontal tower body, which can extend the travel of the waste gas in the horizontal tower body, and then ensure that the waste gas can fully contact with the spray liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the planar structure of the utility model.

[0015] In the figure: 1. horizontal tower body; 2. box body; 3. air inlet; 4. exhaust port; 5. upper baffle; 6. lower baffle; 7. first packing layer; 8. water pump; 9. delivery pipe; 10. first spray pipe; 11. drainage bucket; 12. filter; 13. second packing layer; 14. second spray pipe; 15. wire mesh demister; 16. observation window; 17. semiconductor refrigerator. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3The utility model discloses a waste gas desulfurization device for a coal-fired power plant, comprising a horizontal tower body 1, a box body 2 for treating liquid is fixedly installed at the bottom of the horizontal tower body 1, an air inlet 3 is arranged on one side of the horizontal tower body 1, and an exhaust port 4 is arranged on the other side thereof, at least two groups of blocking mechanisms are arranged in the inner cavity of the horizontal tower body 1, each group of blocking mechanisms comprises an upper baffle 5, a lower baffle 6 and a first packing layer 7, the top inner wall of the horizontal tower body 1 is fixedly connected to the upper baffle 5, the bottom inner wall of the horizontal tower body 1 is fixedly connected to the lower baffle 6, a first packing layer 7 is arranged between the upper baffle 5 and the lower baffle 6, a water pump 8 for extracting the treating liquid in the box body 2 is installed on the box body 2, a delivery pipe 9 connected to the water outlet end of the water pump 8 through a connecting pipe is installed on the rear side of the horizontal tower body 1, and a first spray pipe 10 located above the first packing layer 7 and connected to the delivery pipe 9 through a connecting pipe is installed in the inner cavity of the horizontal tower body 1.

[0018] Specifically, a second packing layer 14 is installed on one side of the inner cavity of the horizontal tower body 1 close to the exhaust port 4, and a vertically arranged second spray pipe 14 is installed on one side of the inner cavity of the horizontal tower body 1 close to the exhaust port 4 of the second packing layer 14, and the second spray pipe 14 is connected to the delivery pipe 9 through a connecting pipe.

[0019] In this embodiment, the fillers in the first filler layer 7 and the second filler layer 14 can be fillers such as ball rings, hollow balls, and plastic grid fillers.

[0020] Specifically, a drainage bucket 11 communicating with the inner cavity of the box body 2 is provided at the bottom of the horizontal tower body 1 , and a filter screen 12 is installed in the inner cavity of the drainage bucket 11 .

[0021] In this embodiment, the liquid sprayed by the first spray pipe 10 falls on the bottom of the horizontal tower body 1 after contacting with the exhaust gas, and then the treated liquid can enter the box body 2 through the drainage bucket 11 to be recycled.

[0022] Specifically, a wire mesh demister 15 is installed on a side of the inner cavity of the horizontal tower body 1 close to the exhaust port 4 .

[0023] In this embodiment, after the sulfur-containing waste gas is sprayed, the wire mesh demister 15 can remove the water mist contained in the exhaust gas.

[0024] Specifically, an observation window 16 is installed on the outer wall of the horizontal tower body 1 .

[0025] In this embodiment, the observation window 16 is provided to facilitate observation of the inner cavity of the horizontal tower body 1 .

[0026] Specifically, a semiconductor refrigerator 17 is installed on the box body 2 .

[0027] In this embodiment, the semiconductor refrigerator 17 can cool the treatment liquid contained in the box body 2.

[0028] In summary, the waste gas desulfurization device for coal-fired power plants, by setting the upper baffle 5 and the lower baffle 6, allows the waste gas to flow in an S shape in the horizontal tower body 1, which can extend the travel of the waste gas in the horizontal tower body 1 and ensure that the waste gas can fully contact with the spray liquid.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas desulfurization device for a coal-fired power plant, comprising a horizontal tower body (1), characterized in that: A box (2) containing a treatment liquid is fixedly installed at the bottom of the horizontal tower body (1); an air inlet (3) is provided on one side of the horizontal tower body (1), and an air outlet (4) is provided on the other side; the inner cavity of the horizontal tower body (1) is provided with at least two groups of blocking mechanisms, each group of blocking mechanisms comprises an upper baffle (5), a lower baffle (6) and a first packing layer (7); the top inner wall of the horizontal tower body (1) is fixedly connected to the upper baffle (5), and the bottom inner wall of the horizontal tower body (1) is fixedly connected to the lower baffle (6). A lower baffle (6) is connected, a first packing layer (7) is arranged between the upper baffle (5) and the lower baffle (6), a water pump (8) for extracting treatment liquid in the box body (2) is installed on the box body (2), a delivery pipe (9) connected to the water outlet end of the water pump (8) through a connecting pipe is installed on the rear side of the horizontal tower body (1), and a first spray pipe (10) located above the first packing layer (7) and connected to the delivery pipe (9) through a connecting pipe is installed in the inner cavity of the horizontal tower body (1).

2. The exhaust gas desulfurization device for a coal-fired power plant according to claim 1, characterized in that: A second packing layer (13) is installed on one side of the inner cavity of the horizontal tower body (1) close to the exhaust port (4); a second vertically arranged spray pipe (14) is installed on one side of the inner cavity of the horizontal tower body (1) located on the second packing layer (13) close to the exhaust port (4); the second spray pipe (14) is connected to the delivery pipe (9) via a connecting pipe.

3. The exhaust gas desulfurization device for a coal-fired power plant according to claim 1, characterized in that: The bottom of the horizontal tower body (1) is provided with a drainage hopper (11) which is in communication with the inner cavity of the box body (2), and a filter screen (12) is installed in the inner cavity of the drainage hopper (11).

4. The exhaust gas desulfurization device for a coal-fired power plant according to claim 1, characterized in that: A wire mesh demister (15) is installed on a side of the inner cavity of the horizontal tower body (1) close to the exhaust port (4).

5. The exhaust gas desulfurization device for a coal-fired power plant according to claim 1, characterized in that: An observation window (16) is installed on the outer wall of the horizontal tower body (1).

6. The exhaust gas desulfurization device for a coal-fired power plant according to claim 1, characterized in that: A semiconductor refrigerator (17) is installed on the box body (2).

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