Industrial tail gas purification device

Abstract

The utility model discloses an industrial tail gas purification device and relates to the technical field of tail gas purification. The device comprises a purification box and a top box, a water valve is arranged between the bottom end of the top box and the upper end of the purification box, a spiral conveying shaft is arranged in the top box in a running fit manner, a guide cylinder is sleeved on the spiral conveying shaft, a plurality of water inlet holes are uniformly distributed on the guide cylinder, a plurality of stirring blades are arranged on the outer side of the guide cylinder, and the water inlet holes are communicated with the water inlet holes. A servo motor used for driving the spiral conveying shaft to rotate is arranged on the upper side of the top box. Limestone and water are discharged into the top box through the feeding valve, then the servo motor is started to drive the spiral conveying shaft, the guide cylinder and the stirring blades to rotate, the stirring blades rotate to drive lime water in the top box to be horizontally stirred, and the spiral conveying shaft drives the lime water passing through the water inlet hole in the guide cylinder to be conveyed and mixed downwards. Therefore, the mixing uniformity in the top box can be improved conveniently, and the tail gas treatment effect can be improved conveniently.

Description

Technical Field

[0001] The utility model belongs to the field of tail gas purification, and specifically relates to an industrial tail gas purification device. Background Art

[0002] Industrial tail gas desulfurization generally refers to the process of removing sulfur from fuel before combustion and the desulfurization process before flue gas emission. With the development of industry and the improvement of people's living standards, the thirst for energy is also increasing. SO2 in coal-fired flue gas has become the main cause of air pollution. Reducing SO2 pollution has become a top priority for today's atmospheric environmental governance. Many flue gas desulfurization processes have been widely used in industry, and they also have important practical significance for the treatment of tail gases from various boilers and incinerators. They are one of the important technical measures to prevent and control air pollution.

[0003] The Chinese patent with publication number CN211411587U discloses an industrial desulfurization tail gas purification device. In view of the fact that the existing industrial tail gas emission treatment equipment has a relatively simple treatment method for desulfurization of tail gas when treating industrial tail gas, the tail gas purification efficiency is low and it cannot well meet the existing industrial tail gas treatment needs. The following scheme is now proposed, which includes a purification box, a top box is welded on the top of the purification box, a pump body is fixedly connected to the bottom inner wall of the top box by bolts, a first pipe is fixedly connected to the liquid outlet of the pump body, a second pipe is fixedly connected to the bottom end of the first pipe, and the second pipe is fixedly connected to the bottom end of the first pipe. A plurality of nozzles are fixedly connected to the bottom of the two tubes, and a driving motor is fixedly connected to the top of the top box by bolts. A first hole is opened on the top of the top box, and a connecting shaft is rotatably installed in the first hole, so as to facilitate the desulfurization treatment of the exhaust gas. The operation is simple and the exhaust gas purification efficiency is high. However, in the industrial desulfurization exhaust gas purification device in the application, the driving motor drives the mixing blades to stir, and then drives the mixed lime water to be sprayed out through the nozzles through the pump body. On the one hand, the operating cost of the equipment is relatively high. On the other hand, the mixing blades rotate horizontally, and the vertical stirring effect on the lime water in the top box is poor, which affects the uniformity of the lime water mixing and the exhaust gas treatment effect.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an industrial tail gas purification device.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] An industrial tail gas purification device comprises a purification box and a top box, a water valve is arranged between the bottom end of the top box and the upper end of the purification box, a screw conveying shaft is rotatably arranged in the top box, a guide cylinder is sleeved on the screw conveying shaft, a plurality of water inlet holes are evenly distributed on the guide cylinder, a plurality of stirring blades are arranged on the outer side of the guide cylinder, and a servo motor for driving the screw conveying shaft to rotate is arranged on the upper side of the top box.

[0008] Optionally, the guide tube corresponds to the water valve, and there is a distance between the bottom end of the guide tube and the bottom surface of the inner wall of the top box, so as to facilitate the water in the guide tube to be discharged through its bottom end and facilitate the lime water in the top box to mix up and down.

[0009] Optionally, a nozzle is connected to the top surface of the inner wall of the purification box, and a plurality of through holes are provided at the bottom of the nozzle. An air pipe is provided in the through holes, and a plurality of water outlet holes are provided at the bottom of the nozzle to facilitate the spraying of lime water through the water outlet holes on the nozzle, and discharge the exhaust gas into the purification box through the air pipe, and then enter the bottom of the nozzle to react with the lime water.

[0010] Optionally, the outer side of the nozzle is in contact with the inner wall of the purification box, an air outlet valve is provided at the upper end of the purification box, and a plurality of the through holes and a plurality of the water outlet holes are staggered at the bottom of the nozzle to facilitate exhaust gas to pass through the nozzle and be discharged through the air outlet valve, thereby avoiding the exhaust gas from being discharged from the lime water reaction device without being sprayed by the nozzle.

[0011] Optionally, a feed valve is provided at the upper end of the top box, a drain valve is provided at the bottom end of the purification box, an air inlet pipe is provided on the side of the purification box, and a filter is provided in the air inlet pipe to facilitate the discharge of water after reaction in the purification box through the drain valve and to facilitate the discharge of exhaust gas into the purification box after passing through the filter in the air inlet pipe and removing solid impurities.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] The limestone and water are discharged into the top box through the feed valve, and then the servo motor is turned on to drive the screw conveying shaft, the guide tube and the stirring blades to rotate. The rotation of the stirring blades drives the lime water in the top box to stir horizontally, and the screw conveying shaft drives the lime water through the water inlet hole on the guide tube to be transported downward and mixed, and then output through the bottom end of the guide tube, so as to improve the uniformity of mixing in the top box and improve the exhaust gas treatment effect.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of an embodiment of the utility model;

[0018] Figure 3 This is a bottom view structural diagram of an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of a nozzle according to an embodiment of the utility model;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] Purification box 1, top box 2, water valve 3, screw conveyor shaft 4, guide tube 5, water inlet hole 6, stirring blade 7, servo motor 8, nozzle 9, through hole 901, air pipe 902, water outlet hole 903, feed valve 10, drain valve 11, air inlet pipe 12, filter screen 13, air outlet valve 14.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The utility model will now be further described in detail with reference to the accompanying drawings.

[0024] See also Figure 1-4 As shown, in this embodiment, an industrial exhaust gas purification device is provided, including a purification box 1 and a top box 2. A water valve 3 is provided between the bottom end of the top box 2 and the upper end of the purification box 1. A screw conveying shaft 4 is rotatably matched in the top box 2. A guide cylinder 5 is sleeved on the screw conveying shaft 4. A plurality of water inlet holes 6 are evenly distributed on the guide cylinder 5. A plurality of stirring blades 7 are provided on the outer side of the guide cylinder 5. A servo motor 8 for driving the screw conveying shaft 4 to rotate is provided on the upper side of the top box 2.

[0025] The limestone and water are discharged into the top box 2 through the feed valve 10, and then the servo motor 8 is turned on to drive the screw conveying shaft 4, the guide tube 5, and the stirring blade 7 to rotate. The rotation of the stirring blade 7 drives the lime water in the top box 2 to stir horizontally. The screw conveying shaft 4 drives the lime water through the water inlet hole 6 on the guide tube 5 to be transported downward and mixed, and then output through the bottom end of the guide tube 5, so as to improve the uniformity of mixing in the top box 2 and improve the treatment effect of the exhaust gas.

[0026] The guide tube 5 of this embodiment corresponds to the water valve 3, and there is a distance between the bottom end of the guide tube 5 and the bottom surface of the inner wall of the top box 2, so as to facilitate the water in the guide tube 5 to be discharged through its bottom end, facilitate the lime water in the top box 2 to mix up and down, and facilitate to improve the vertical mixing effect of the lime water in the top box 2.

[0027] The top surface of the inner wall of the purification box 1 of this embodiment is connected to a nozzle 9, and a plurality of through holes 901 are provided at the bottom of the nozzle 9. An air pipe 902 is provided in the through hole 901, and a plurality of water outlet holes 903 are provided at the bottom of the nozzle 9, so that lime water can be sprayed out through the water outlet holes 903 on the nozzle 9, and the exhaust gas can be discharged into the purification box 1 through the air pipe 902, and then enter the bottom of the nozzle 9 to react with the lime water, thereby completing the desulfurization of the exhaust gas.

[0028] The outer side of the nozzle 9 of this embodiment is fitted with the inner wall of the purification box 1, and an air outlet valve 14 is provided at the upper end of the purification box 1. The multiple through holes 901 and the multiple water outlet holes 903 are staggered at the bottom of the nozzle 9 to facilitate the exhaust gas to pass through the nozzle 9 and be discharged through the air outlet valve 14, so as to avoid the exhaust gas from being discharged from the lime water reaction device without being sprayed by the nozzle 9, thereby improving the exhaust gas desulfurization effect.

[0029] In this embodiment, a feed valve 10 is provided at the upper end of the top box 2, a drain valve 11 is provided at the bottom end of the purification box 1, an air inlet pipe 12 is provided on the side of the purification box 1, and a filter screen 13 is provided in the air inlet pipe 12, so that the water after the reaction in the purification box 1 can be discharged through the drain valve 11, and the exhaust gas can be discharged into the purification box 1 after passing through the filter screen 13 in the air inlet pipe 12 and passing through solid impurities, so as to facilitate the preliminary treatment of the exhaust gas.

[0030] Working principle: Limestone and water are discharged into the top box 2 through the feed valve 10, and then the servo motor 8 is turned on to drive the screw conveying shaft 4, the guide tube 5, and the stirring blade 7 to rotate. The stirring blade 7 rotates to drive the lime water in the top box 2 to stir horizontally. The screw conveying shaft 4 drives the lime water through the water inlet hole 6 on the guide tube 5 to be transported downward and mixed, and then output through the bottom end of the guide tube 5, which is convenient for improving the uniformity of mixing in the top box 2 and improving the treatment effect of the exhaust gas. After the lime water in the top box 2 is mixed, the water valve 3 is opened, and the ... The rotary conveying shaft 4 drives the water in the top box 2 to be pressurized and conveyed to the water valve 3 through the guide tube 5, and then sprayed out through the water outlet 903 on the nozzle 9, and the exhaust gas is discharged into the purification box 1 through the air pipe 902, and then enters the bottom of the nozzle 9 to react with lime water, thereby completing the desulfurization of the exhaust gas, and then passes through the nozzle 9 through the air pipe 902 on the nozzle 9, and then discharged through the outlet valve 14, so that the exhaust gas must pass under the nozzle 9, so as to avoid the exhaust gas not passing through the lime water reaction discharge device sprayed by the nozzle 9, so as to improve the exhaust gas desulfurization effect.

[0031] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An industrial tail gas purification device, characterized in that: include: A purification box (1) and a top box (2), wherein a water valve (3) is provided between the bottom end of the top box (2) and the top end of the purification box (1), a screw conveying shaft (4) is rotatably provided in the top box (2), a guide tube (5) is sleeved on the screw conveying shaft (4), a plurality of water inlet holes (6) are evenly distributed on the guide tube (5), a plurality of stirring blades (7) are provided on the outside of the guide tube (5), and a servo motor (8) for driving the screw conveying shaft (4) to rotate is provided on the upper side of the top box (2).

2. The industrial tail gas purification device according to claim 1, characterized in that: The guide tube (5) corresponds to the water valve (3), and there is a distance between the bottom end of the guide tube (5) and the bottom surface of the inner wall of the top box (2).

3. The industrial tail gas purification device according to claim 1, characterized in that: The top surface of the inner wall of the purification box (1) is connected to a nozzle (9), a plurality of through holes (901) are provided at the bottom end of the nozzle (9), an air passage (902) is provided in the through holes (901), and a plurality of water outlet holes (903) are provided at the bottom end of the nozzle (9).

4. The industrial tail gas purification device according to claim 3, characterized in that: The outer side of the nozzle (9) is in contact with the inner wall of the purification box (1), and an air outlet valve (14) is provided at the upper end of the purification box (1).

5. The industrial tail gas purification device according to claim 3, characterized in that: The plurality of through holes (901) and the plurality of water outlet holes (903) are arranged alternately at the bottom end of the nozzle (9).

6. The industrial tail gas purification device according to claim 1, characterized in that: The top end of the top box (2) is provided with a feed valve (10), the bottom end of the purification box (1) is provided with a drain valve (11), the side of the purification box (1) is provided with an air intake pipe (12), and a filter screen (13) is provided inside the air intake pipe (12).

Images