Flue gas dry desulfurization device

Abstract

The utility model relates to the field of flue gas treatment equipment, and discloses a flue gas dry desulfurization device which comprises a shell, fixed frames are fixedly connected to the left side and the right side of the shell, a filter plate is movably connected to the middle of each fixed frame, and a flue gas distributor is fixedly connected to the right side of the fixed frame located on the right side. A gas inlet pipe is fixedly connected to the right side of the flue gas distributor, a gas outlet pipe is fixedly connected to the left side of the fixing frame located on the left side, a plurality of spraying pipes are fixedly connected to the top of the shell, two cleaning assemblies are arranged in the shell, and a discharging hopper is fixedly connected to the bottom of the shell. And the filter plate comprises a connecting frame. According to the flue gas treatment device, impurities originally contained in flue gas and dust particles generated by treatment can be filtered through mutual matching between the fixed frame and the filter plate, so that the flue gas treatment effect of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of flue gas treatment equipment, in particular to a flue gas dry desulfurization device. Background Art

[0002] Flue gas dry desulfurization is a method of removing sulfur dioxide from flue gas emitted by industries such as coal-fired power plants by using dry desulfurizers. Generally, baking soda is ground into powder and sprayed into the flue gas to react with sulfur dioxide in the flue gas to achieve the purpose of desulfurization. Compared with wet desulfurization, this method does not require the treatment of a large amount of wastewater, so it is more energy-saving and environmentally friendly in some cases.

[0003] After searching, the Chinese patent announcement number: CN219942377U discloses a dust removal and efficient flue gas dry desulfurization device, including: the right end of the flue gas inlet cavity is fixedly connected with a first flue gas treatment mechanism by bolts, the right end of the first flue gas treatment mechanism is fixedly connected with a first flue gas mixing chamber by bolts, the right end of the first flue gas mixing chamber is fixedly connected with a second flue gas treatment mechanism by bolts, the right end of the second flue gas treatment mechanism is fixedly connected with a second flue gas mixing chamber by bolts, and the left end of the second flue gas mixing chamber is fixedly connected with a third flue gas treatment mechanism by bolts. Through the overall structure of the equipment, it has two functions of dust removal and desulfurization. The overall device has low investment, small footprint, simple equipment, and low maintenance. The core module design of the dust removal and efficient desulfurization device can be freely combined with multiple modules according to the flue gas parameters and the owner's requirements. It has great operational flexibility and can achieve ultra-clean emission requirements.

[0004] Although the above-mentioned device can perform desulfurization and dust removal operations on flue gas, the holes of general flue gas distributors are relatively large, and the dust particles generated after flue gas desulfurization lack obstruction and will be discharged along with the flue gas through the holes of the flue gas distributor, resulting in a high content of impurities such as dust in the treated flue gas, affecting the treatment effect. Therefore, a flue gas dry desulfurization device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a flue gas dry desulfurization device, which aims to improve the problem that the holes of the flue gas distributor in the prior art are generally large and lack a blocking structure, resulting in some dust impurities being discharged with the treated flue gas, affecting the treatment effect.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flue gas dry desulfurization device, comprising a shell, the left and right sides of the shell are fixedly connected with a fixed frame, the middle part of the fixed frame is movably connected with a filter plate, the right side of the fixed frame located on the right side is fixedly connected with a flue gas distributor, the right side of the flue gas distributor is fixedly connected with an air inlet pipe, the left side of the fixed frame located on the left side is fixedly connected with an air outlet pipe, the top of the shell is fixedly connected with a spray pipe, and the shell is provided with a cleaning assembly inside, and the number is two, the bottom of the shell is fixedly connected with a discharge hopper, and the filter plate includes a connecting frame.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the connection frame is fixedly connected with a filter screen, and the front and rear parts, left and right sides of the connection frame are fixedly connected with sliding rods.

[0009] As a further description of the above technical solution:

[0010] The top of the connection frame is fixedly connected with a top plate.

[0011] As a further description of the above technical solution:

[0012] A fixing groove is provided in the middle of the fixing frame, and the connecting frame is movably connected to the fixing groove.

[0013] As a further description of the above technical solution:

[0014] Slide grooves are provided on the front and rear parts, left and right sides of the fixing groove, and the slide rod is movably connected with the slide grooves.

[0015] As a further description of the above technical solution:

[0016] The top of the fixing frame is provided with a mounting groove, and the top plate is movably connected with the mounting groove through bolts.

[0017] As a further description of the above technical solution:

[0018] The cleaning assembly comprises a connecting rod, and the connecting rod is rotatably connected to the inner wall of the shell.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the connecting rod is fixedly connected with a plurality of fan plates, and a brush plate is fixedly connected to a side of the fan plate away from the connecting rod.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting the cooperation between the fixed frame and the filter plate, the impurities originally contained in the flue gas and the dust particles generated after the treatment can be filtered, which effectively improves the treatment effect of the flue gas of the device.

[0023] 2. In the utility model, by setting the cooperation between the cleaning component and the filter plate, the filter plate can be cleaned during use, effectively improving its filtering quality and efficiency. At the same time, by setting the mutual cooperation between the filter plate and the fixed frame, the replacement of the filter plate of the device is made more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a flue gas dry desulfurization device proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the overall split three-dimensional structure of a flue gas dry desulfurization device proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the split three-dimensional structure of the filter plate and the fixing frame of a flue gas dry desulfurization device proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the disassembled three-dimensional structure of the shell and cleaning components of a flue gas dry desulfurization device proposed by the utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Fixed frame; 3. Filter plate; 4. Smoke distributor; 5. Inlet pipe; 6. Exhaust pipe; 7. Discharge hopper; 8. Spray pipe; 9. Cleaning assembly; 21. Fixed slot; 22. Slide slot; 23. Mounting slot; 31. Connecting frame; 32. Filter screen; 33. Slide rod; 34. Top plate; 35. Bolt; 91. Connecting rod; 92. Fan plate; 93. Brush plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 - Figure 2, the utility model provides an embodiment: a flue gas dry desulfurization device, including a shell 1, which is used to connect various components. The left and right sides of the shell 1 are fixedly connected with a fixed frame 2 for installing a filter plate 3. The middle part of the fixed frame 2 is movably connected with a filter plate 3 for filtering impurities and dust. The right side of the fixed frame 2 on the right is fixedly connected with a flue gas distributor 4 for evenly distributing the flue gas. The right side of the flue gas distributor 4 is fixedly connected with an air inlet pipe 5 for flue gas to enter the device. The left side of the fixed frame 2 on the left is fixedly connected with an air outlet pipe 6 for discharging treated flue gas. The top of the shell 1 is fixedly connected with a spray pipe 8, and the number is multiple, which is used to spray desulfurization powder. The inside of the shell 1 is provided with a cleaning component 9 for cleaning the filter screen 32, and the number is two. The bottom of the shell 1 is fixedly connected with a discharge hopper 7 for discharging impurities generated during desulfurization.

[0032] like Figure 3 As shown, the filter plate 3 includes a connecting frame 31 for connecting a filter screen 32. The inner wall of the connecting frame 31 is fixedly connected with the filter screen 32 for filtering impurities. The front and rear left and right sides of the connecting frame 31 are fixedly connected with sliding rods 33 for connecting with the fixed frame 2. The top of the connecting frame 31 is fixedly connected with a top plate 34 for fixing the filter plate 3.

[0033] Furthermore, a fixing groove 21 is provided in the middle of the fixing frame 2 for installing a connecting frame 31, and the connecting frame 31 is movably connected thereto. Slide grooves 22 are provided on the front and rear left and right sides of the fixing groove 21 for cooperating with a slide rod 33, and the slide rod 33 is movably connected thereto. An installation groove 23 is provided on the top of the fixing frame 2 for installing a top plate 34, and the top plate 34 is movably connected thereto by bolts 35.

[0034] See also Figure 4 The cleaning assembly 9 includes a connecting rod 91 for connecting to the outer shell 1. The connecting rod 91 is rotatably connected to the inner wall of the outer shell 1. The outer wall of the connecting rod 91 is fixedly connected with a plurality of fan plates 92 for driving the connecting rod 91 in coordination with the airflow. A brush plate 93 is fixedly connected to the side of the fan plate 92 away from the connecting rod 91 for cleaning the filter screen 32.

[0035] Working principle: When in use, the flue gas to be treated enters the device through the air inlet pipe 5, and the flue gas will pass through the flue gas distributor 4 to be evenly distributed on the filter plate 3. The flue gas will enter the outer shell 1 through the filter plate 3. At the same time, baking soda powder will enter the outer shell 1 through three spray pipes 8 to react with sulfur in the flue gas to desulfurize. The impurities generated during the desulfurization will be discharged through the discharge hopper 7. At the same time, when the flue gas enters the outer shell 1, the fan plate 92 will be blown by the flow of air. When the fan plate 92 moves, it will drive the connecting rod 91 to rotate, thereby causing the overall cleaning assembly 9 to rotate. When the fan plate 92 rotates, it will drive the brush plate 93 to clean the filter screen 32 to ensure the cleaning efficiency of the filter plate 3. The treated flue gas will pass through the filter plate 3 on the left and enter the air outlet pipe 6 for discharge.

[0036] When the filter plate 3 needs to be replaced, unscrew the bolts 35 between the top plate 34 and the mounting groove 23, then pull the filter plate 3 out of the fixing frame 2, then align the connecting frame 31 on the new filter plate 3 with the fixing groove 21, align the slide rod 33 with the slide groove 22, install the filter plate 3 into the fixing frame 2, make the top plate 34 fit into the mounting groove 23, and then fix the top plate 34 and the mounting groove 23 with the bolts 35.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas dry desulfurization device, comprising a housing (1), characterized in that: The left and right sides of the shell (1) are fixedly connected to a fixed frame (2), the middle part of the fixed frame (2) is movably connected to a filter plate (3), the right side of the fixed frame (2) located on the right side is fixedly connected to a smoke distributor (4), the right side of the smoke distributor (4) is fixedly connected to an air inlet pipe (5), the left side of the fixed frame (2) located on the left side is fixedly connected to an air outlet pipe (6), the top of the shell (1) is fixedly connected to a plurality of spray pipes (8), the interior of the shell (1) is provided with two cleaning components (9), the bottom of the shell (1) is fixedly connected to a discharge hopper (7), and the filter plate (3) includes a connecting frame (31).

2. A flue gas dry desulfurization device according to claim 1, characterized in that: The inner wall of the connection frame (31) is fixedly connected with a filter screen (32), and the front, rear, left and right sides of the connection frame (31) are fixedly connected with sliding rods (33).

3. A flue gas dry desulfurization device according to claim 1, characterized in that: A top plate (34) is fixedly connected to the top of the connection frame (31).

4. A flue gas dry desulfurization device according to claim 2, characterized in that: A fixing groove (21) is provided in the middle of the fixing frame (2), and the connecting frame (31) is movably connected thereto.

5. A flue gas dry desulfurization device according to claim 4, characterized in that: The front and rear parts and the left and right sides of the fixing groove (21) are both provided with sliding grooves (22), and the sliding rod (33) is movably connected thereto.

6. A flue gas dry desulfurization device according to claim 3, characterized in that: The top of the fixing frame (2) is provided with a mounting groove (23), and the top plate (34) is movably connected thereto via bolts (35).

7. A flue gas dry desulfurization device according to claim 1, characterized in that: The cleaning assembly (9) comprises a connecting rod (91), and the connecting rod (91) is rotatably connected to the inner wall of the outer shell (1).

8. A flue gas dry desulfurization device according to claim 7, characterized in that: The outer wall of the connecting rod (91) is fixedly connected with a plurality of fan plates (92), and a brush plate (93) is fixedly connected to a side of the fan plate (92) away from the connecting rod (91).

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