Flue gas pretreatment device of desulfurizing tower

Abstract

The utility model provides a flue gas pretreatment device of a desulfurizing tower, and belongs to the technical field of flue gas treatment. Comprising a tank body, and supporting legs are fixedly installed on the outer wall of the bottom of the tank body. Flue gas is injected into the gas distribution disc through the gas inlet pipe, the flue gas entering the gas distribution disc can be discharged into the inner cavity of the tank body through the gas outlet valve, the flue gas entering the tank body can make contact with water filled in the tank body, meanwhile, the flue gas passes through the gas distribution net when being discharged, the flue gas is broken through the gas distribution net, the flue gas makes contact with the water more sufficiently, and the water content of the flue gas is reduced. The flue gas floats to the top of the tank body and passes through the filter screen, and the filter screen is used for filtering the flue gas again, so that the problems that the flue gas pretreatment device is poor in flue gas filtering effect, and the flue gas contains a large amount of impurities such as smoke dust, so that the desulfurization effect is poor, the loss is large, the operation cost is increased, and the like are solved. And environmental protection is not facilitated.

Description

Technical Field

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

[0002] Desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas. Desulfurization tower was originally built with granite and was most widely used. It uses the principle of water film desulfurization and dust removal, and is also known as granite water film desulfurization dust collector, or granite water film desulfurization dust collector. The advantage is that it is easy to maintain, and different dust removal agents can be prepared to achieve the effects of dust removal and desulfurization (denitrification) at the same time.

[0003] The flue gas desulfurization equipment in the prior art usually adopts a lime-gypsum wet desulfurization process for desulfurization, which has a high desulfurization efficiency. When the lime-gypsum wet desulfurization process is used, the flue gas needs to be pretreated. The existing flue gas pretreatment device has a poor filtering effect on the flue gas. The flue gas contains a large amount of impurities such as smoke dust, resulting in poor desulfurization effect and large losses, which increases the operating cost and is not conducive to environmental protection. Therefore, the present application provides a flue gas pretreatment device for a desulfurization tower to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a flue gas pretreatment device for a desulfurization tower to solve the limitation problems that the existing flue gas pretreatment device has poor filtering effect on the flue gas, the flue gas contains a large amount of impurities such as smoke dust, resulting in poor desulfurization effect and large loss, increased operating costs, and is not conducive to environmental protection.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A flue gas pretreatment device for a desulfurization tower comprises: a tank body, wherein a supporting leg is fixedly installed on the outer wall of the bottom of the tank body, a drain pipe is installed through the bottom of the tank body, a smoke outlet pipe is installed through the top of the tank body, a water injection pipe is installed through the upper part of the outer wall of the tank body, an inner cavity of the tank body is provided with an air distribution plate, a mounting member is fixedly installed on the top of the air distribution plate, and the side wall of the mounting member is fixedly connected to the inner wall of the tank body, an air outlet valve is fixedly installed on the bottom of the air distribution plate, an air inlet is opened on the side wall of the air distribution plate, an air inlet is fixedly connected to the inner cavity of the air inlet, and the air inlet pipe runs through the side wall of the tank body, an air distribution net fixedly connected to the inner wall of the tank body is provided below the outlet of the air outlet valve, a stirring assembly is provided on the tank body, and a filter net is fixedly installed on the inner wall of the tank body and above the stirring assembly.

[0007] Preferably, a desiccant mesh plate for drying flue gas is fixedly mounted on the inner wall of the smoke outlet pipe.

[0008] Preferably, the stirring assembly includes a driving member, an output shaft of the driving member passes through the side wall of the tank body and is fixedly connected to a first rotating shaft, a first rotating disk is fixedly installed on an end of the first rotating shaft away from the driving member, a rotating rod is fixedly installed on a side of the first rotating disk away from the first rotating shaft, a stirring rod is fixedly installed on an outer wall of the rotating rod, a second rotating disk is fixedly installed on an end of the rotating rod away from the first rotating disk, a second rotating shaft is fixedly installed on the other side of the second rotating disk, and the second rotating shaft is rotatably connected to the inner wall of the tank body.

[0009] Preferably, a support plate is fixedly provided on the bottom of the driving member, and the support plate is fixedly connected to the outer wall of the tank body.

[0010] Preferably, the number of the rotating rods is three, and the three rotating rods are arranged in an equilateral triangle, and the outer walls of the three rotating rods are fixed with stirring rods.

[0011] Preferably, there are several stirring rods, and the lengths of the several stirring rods are different, and the stirring rods become shorter toward the two ends of the rotating rod.

[0012] Preferably, the bottom of the tank body is configured to be conical.

[0013] Preferably, the number of the supporting legs is four, and pads are provided at the bottoms of the four supporting legs.

[0014] Preferably, the number of the mounting members is four, and the four mounting members are all arranged in an "L" shape.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] 1. In the above scheme, the flue gas is injected into the gas distribution plate through the air inlet pipe, and the flue gas entering the gas distribution plate will be discharged into the inner cavity of the tank body through the air outlet valve. The flue gas entering the tank body will contact with the water filled in the tank body. At the same time, the flue gas will pass through the gas distribution network when it is discharged, and the flue gas will be broken up by the gas distribution network to make the flue gas and water contact more fully, so as to better filter the particulate matter in the flue gas. The flue gas will float to the top of the tank body and pass through the filter net, and the flue gas will be filtered again by the filter net, thereby solving the problem that the flue gas pretreatment device has a poor filtering effect on the flue gas, and the flue gas contains a large amount of impurities such as smoke dust, resulting in poor desulfurization effect and large loss, increasing the operating cost, and is not conducive to environmental protection.

[0017] 2. In the above scheme, the first rotating shaft is driven to rotate by the driving member, so that the first rotating disk is rotated. After the first rotating disk rotates, it will drive the rotating rod to rotate, so that the stirring rod stirs the water in the tank body, so that the smoke can contact with the water more fully, thereby improving the smoke filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] FIG1 is a schematic diagram of the three-dimensional structure of a flue gas pretreatment device of a desulfurization tower;

[0020] FIG2 is a schematic cross-sectional structure diagram of a flue gas pretreatment device of a desulfurization tower from a first viewing angle;

[0021] FIG3 is a schematic diagram of the cross-sectional structure of the flue gas pretreatment device of the desulfurization tower from the second viewing angle.

[0022] Reference numerals

[0023] 1. Tank body; 2. Support legs; 3. Drain pipe; 4. Smoke outlet pipe; 41. Desiccant mesh plate; 5. Water injection pipe; 6. Air distributor; 7. Mounting parts; 8. Air outlet valve; 9. Air inlet; 10. Air inlet pipe; 11. Air distributor net; 12. Stirring assembly; 121. Driving member; 122. First rotating shaft; 123. First rotating disk; 124. Rotating rod; 125. Stirring rod; 126. Second rotating disk; 127. Second rotating shaft; 13. Filter net.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0025] The following is a detailed description of a flue gas pretreatment device for a desulfurization tower provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] As shown in Figures 1, 2 and 3, an embodiment of the utility model provides a flue gas pretreatment device for a desulfurization tower, comprising: a tank body 1, a support leg 2 is fixedly installed on the outer wall of the bottom of the tank body 1, a drainage pipe 3 is installed through the bottom of the tank body 1, a smoke outlet pipe 4 is installed through the top of the tank body 1, a water injection pipe 5 is installed through the upper part of the outer wall of the tank body 1, an air distribution plate 6 is provided in the inner cavity of the tank body 1, a mounting member 7 is fixedly installed on the top of the air distribution plate 6, and the side wall of the mounting member 7 is connected to the inner wall of the tank body 1. Fixedly connected, an air outlet valve 8 is fixedly installed at the bottom of the air distribution plate 6, an air inlet 9 is opened on the side wall of the air distribution plate 6, an air inlet pipe 10 is fixedly connected to the inner cavity of the air inlet 9, and the air inlet pipe 10 passes through the side wall of the tank body 1, and an air distribution net 11 fixedly connected to the inner wall of the tank body 1 is arranged below the outlet of the air outlet valve 8, a stirring assembly 12 is arranged on the tank body 1, a filter net 13 is fixedly installed on the inner wall of the tank body 1 and above the stirring assembly 12, and the inner cavity of the tank body 1 is filled with water for cleaning the flue gas.

[0027] As shown in FIG. 1 and FIG. 2 , a desiccant mesh plate 41 for drying flue gas is fixedly installed on the inner wall of the smoke outlet pipe 4 . The flue gas is dried by the desiccant mesh plate 41 to prevent the moist flue gas from affecting subsequent processing.

[0028] As shown in Figures 2 and 3, the stirring assembly 12 includes a driving member 121, the output shaft of the driving member 121 passes through the side wall of the tank body 1 and is fixedly connected to a first rotating shaft 122, the first rotating shaft 122 is fixedly installed with a first rotating disk 123 at one end away from the driving member 121, a rotating rod 124 is fixedly installed on the side of the first rotating disk 123 away from the first rotating shaft 122, a stirring rod 125 is fixedly installed on the outer wall of the rotating rod 124, a second rotating disk 126 is fixedly installed at one end of the rotating rod 124 away from the first rotating disk 123, a second rotating shaft 127 is fixedly installed on the other side of the second rotating disk 126, and the second rotating shaft 127 is rotatably connected to the inner wall of the tank body 1, the first rotating shaft 122 is driven to rotate by the driving member 121, so that the first rotating disk 123 is rotated, and the first rotating disk 123 rotates, which drives the rotating rod 124 to rotate, so that the stirring rod 125 stirs the water in the tank body 1, so that the smoke can be more fully in contact with the water, thereby improving the smoke filtration effect.

[0029] As shown in Figures 1 and 2, a support plate is fixedly provided at the bottom of the driving member 121, and the support plate is fixedly connected to the outer wall of the tank body 1. The driving member 121 is supported by the support plate so that the driving member 121 can be stably installed on the outer wall of the tank body 1.

[0030] As shown in Figures 2 and 3, there are three rotating rods 124, and the three rotating rods 124 are arranged in an equilateral triangle. The outer walls of the three rotating rods 124 are fixed with stirring rods 125. The equilateral triangle arrangement can maintain the balance of the three rotating rods 124 so that the rotating rods 124 will not be affected when rotating.

[0031] As shown in Figures 2 and 3, there are several stirring rods 125, and the lengths of the several stirring rods 125 are different. The stirring rods 125 become shorter as they are closer to the two ends of the rotating rod 124, and the two ends closer to the rotating rod 124 are closer to the inner wall of the tank body 1. If the stirring rods 125 are too long, they will touch the inner wall of the tank body 1.

[0032] As shown in FIG. 1 , the bottom of the tank body 1 is configured to be conical. The conical shape can facilitate the discharge of sewage inside the tank body 1 without causing residue.

[0033] As shown in FIG. 1 and FIG. 2 , there are four supporting legs 2 , and pads are provided at the bottom of the four supporting legs 2 . The tank body 1 is more stable by providing four supporting legs 2 , and the contact area between the supporting legs 2 and the ground can be increased by providing the pads.

[0034] As shown in Figures 1 and 3, there are four mounting parts 7, and all four mounting parts 7 are set in an "L" shape. One end of the mounting part 7 is used to fix the gas distribution plate 6 and the other end is used to fix on the inner wall of the tank body 1, so that the gas distribution plate 6 is fixed by the mounting part 7.

[0035] The technical solution of the present utility model is to inject the smoke into the gas distribution plate 6 through the air inlet pipe 10, and the smoke entering the gas distribution plate 6 will be discharged into the inner cavity of the tank body 1 through the air outlet valve 8, and the smoke entering the tank body 1 will contact with the water filled in the tank body 1, and at the same time, the smoke will pass through the gas distribution net 11 when being discharged, and the smoke will be broken by the gas distribution net 11, so that the smoke and water will contact more fully, so as to better filter the particulate matter in the smoke, and the smoke will float to the top of the tank body 1 and pass through the filter net 13, and the smoke will be filtered again by the filter net 13, and the first rotating shaft 122 is driven to rotate by the driving member 121 to rotate the first rotating disk 123, and the first rotating disk 123 will drive the rotating rod 124 to rotate after the rotation, so that the stirring rod 125 stirs the water in the tank body 1, so that the smoke can contact with the water more fully, thereby improving the smoke filtering effect.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A flue gas pretreatment device for a desulfurization tower, comprising: A tank body (1), wherein a support leg (2) is fixedly mounted on the outer wall of the bottom of the tank body (1), a drainage pipe (3) is installed through the bottom of the tank body (1), a smoke outlet pipe (4) is installed through the top of the tank body (1), and a water injection pipe (5) is installed through the top of the outer wall of the tank body (1), characterized in that an air distribution plate (6) is provided in the inner cavity of the tank body (1), a mounting member (7) is fixedly mounted on the top of the air distribution plate (6), and a side wall of the mounting member (7) is fixedly connected to the inner wall of the tank body (1), and the air distribution plate (6) is provided with a gas distribution plate (6) and a mounting member (7) is fixedly mounted on the top of the gas distribution plate (6), and a side wall of the mounting member (7) is fixedly connected to the inner wall of the tank body (1), and the gas distribution plate (6) is provided with a gas distribution plate (6) and a mounting member (7) is fixedly mounted on the top of the gas distribution plate (6), and a side wall of the mounting member (7) is fixedly connected to the inner wall of the tank body (1), and the gas distribution plate (6) is provided with a gas distribution plate (6) and a mounting member (7) is fixedly mounted on the top of the gas distribution plate (6), and a side wall of the mounting member (7) is fixedly connected to the inner wall of the tank body (1), and the gas distribution plate (6) is provided with a gas distribution plate (6) and a mounting member (7) is fixedly mounted on the top of the gas distribution plate (6), and the ... An air outlet valve (8) is fixedly mounted on the bottom of the plate (6); an air inlet (9) is opened on the side wall of the air distribution plate (6); an air inlet pipe (10) is fixedly connected to the inner cavity of the air inlet (9); and the air inlet pipe (10) passes through the side wall of the tank body (1); an air distribution net (11) fixedly connected to the inner wall of the tank body (1) is arranged below the outlet of the air outlet valve (8); a stirring assembly (12) is arranged on the tank body (1); and a filter net (13) is fixedly mounted on the inner wall of the tank body (1) and above the stirring assembly (12).

2. The flue gas pretreatment device of the desulfurization tower according to claim 1, characterized in that: A desiccant mesh plate (41) for drying flue gas is fixedly mounted on the inner wall of the smoke outlet pipe (4).

3. The flue gas pretreatment device of the desulfurization tower according to claim 1, characterized in that: The stirring assembly (12) comprises a driving member (121); an output shaft of the driving member (121) passes through a side wall of the tank body (1) and is fixedly connected to a first rotating shaft (122); a first rotating disk (123) is fixedly mounted on one end of the first rotating shaft (122) away from the driving member (121); a rotating rod (124) is fixedly mounted on one side of the first rotating disk (123) away from the first rotating shaft (122); a stirring rod (125) is fixedly mounted on an outer wall of the rotating rod (124); a second rotating disk (126) is fixedly mounted on one end of the rotating rod (124) away from the first rotating disk (123); a second rotating shaft (127) is fixedly mounted on the other side of the second rotating disk (126); and the second rotating shaft (127) is rotatably connected to the inner wall of the tank body (1).

4. The flue gas pretreatment device of the desulfurization tower according to claim 3, characterized in that: A support plate is fixedly provided at the bottom of the driving member (121), and the support plate is fixedly connected to the outer wall of the tank body (1).

5. The flue gas pretreatment device of the desulfurization tower according to claim 3, characterized in that: The number of the rotating rods (124) is three, and the three rotating rods (124) are arranged in an equilateral triangle, and the outer walls of the three rotating rods (124) are all fixedly provided with stirring rods (125).

6. The flue gas pretreatment device of the desulfurization tower according to claim 5, characterized in that: There are a plurality of stirring rods (125), and the lengths of the plurality of stirring rods (125) are different. The stirring rods (125) become shorter toward the two ends of the rotating rod (124).

7. The flue gas pretreatment device of the desulfurization tower according to claim 1, characterized in that: The bottom of the tank body (1) is configured to be conical.

8. The flue gas pretreatment device of the desulfurization tower according to claim 1, characterized in that: The number of the supporting legs (2) is four, and pads are provided at the bottoms of the four supporting legs (2).

9. The flue gas pretreatment device of the desulfurization tower according to claim 1, characterized in that: The number of the mounting members (7) is four, and the four mounting members (7) are all arranged in an "L" shape.

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