Spraying and atomizing structure of alkaline washing tower

Abstract

The spray atomization structure comprises a tower body, an air inlet is formed in the bottom of the tower body, an exhaust port is formed in the top end of the tower body, and a spray head is fixed to the top of an inner cavity of the tower body; two grid plates are arranged in an inner cavity of the tower body below the spray head and are horizontally fixed on the inner wall of the tower body; a plurality of oscillation units are arranged between the two grid plates, each oscillation unit can move up and down relative to the grid plates, and each oscillation unit is always subjected to a downward moving force; a wind wheel is arranged below the two grid plates, and when tail gas flows into the air inlet, the wind wheel can drive the vibration unit to vibrate up and down. The problem that at the present stage, a device capable of maintaining the solution atomization state under the condition of avoiding blockage is lacked is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tail gas treatment field especially relates to a kind of alkali washing tower spray atomization structure. BACKGROUND

[0002] With the continuous improvement of industrial tail gas emission standard, the equipment of tail gas treatment also needs continuous improvement, alkali washing tower can neutralize the acidic tail gas generated in chemical production process, also has the effect of dust fall, is the core equipment in current chemical tail gas treatment;The inside of existing alkali washing tower mainly includes spray system and filler layer, spray system is misted in tower body inside by alkaline solution, filler layer is located below spray system, mist drop is uniformly distributed on the surface of packing after falling on filler layer, increase the contact area of tail gas and alkaline solution, but after long time use, crystallization will be generated in filler layer, cause the blockage of filler layer, reduce tail gas emission speed and alkali washing tower absorption effect;If filler layer is removed, since mist drop will continuously gather other mist drop to form large water drop in falling process, and the surface area of solution in mist form is far greater than that in water drop form with equal quality, so after removing filler layer, although the blockage problem can be solved, but the absorption effect of acidic material in tail gas will also be reduced, so at present stage, still need a device that can maintain solution atomization state without blockage. SUMMARY

[0003] The utility model aims at: in order to solve the problem that lack a device that can maintain solution atomization state without blockage at present stage, and a kind of alkali washing tower spray atomization structure is provided.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of alkali washing tower spray atomization structure, including tower body, the bottom of tower body is equipped with air inlet, the top of tower body is equipped with exhaust port, the top of the inner chamber of tower body is fixed with spray head;The inner chamber of tower body below spray head is equipped with grid plate, and the grid plate has two, two grid plates are all fixed horizontally on the inner wall of tower body;Multiple oscillation units are equipped between two grid plates, each oscillation unit can move up and down relative to grid plate, and each oscillation unit is always subjected to the force of moving downward;The wind wheel is equipped below two grid plates, and the wind wheel can drive oscillation unit to vibrate up and down when air inflow at air inlet.

[0006] As further description of the above technical scheme:

[0007] The bottom of the tower body is fixed with backwater pipe, one end of backwater pipe is located in the tower body, the other end of backwater pipe extends out of the tower body and is fixed with water pump, and the water outlet of water pump is connected with spray head;After alkaline solution falls to the bottom of tower body, it flows to spray head again through backwater pipe and water pump, and is recycled.

[0008] As further description of the above technical scheme:

[0009] The grid plate is a disc, and a plurality of square grooves are uniformly distributed on the disc, and a circular groove is formed between every two square grooves.

[0010] As a further description of the above technical solution:

[0011] The oscillation unit comprises a circular rod, the upper and lower ends of the circular rod are located in the circular grooves of the upper and lower grid plates respectively, a plurality of conical thin plates are fixed on the circular rod between the upper and lower grid plates, the conical mouths of the thin plates face downward, a set of limiting rings is arranged on the upper and lower parts of the circular rod respectively, each set of limiting rings comprises two circular rings, the two circular rings in the upper limiting ring are located on the upper and lower sides of the upper grid plate respectively, the two circular rings in the lower limiting ring are located on the upper and lower sides of the lower grid plate respectively, and a compression spring is arranged between the lower circular ring in each set of limiting rings and the grid plate, so that the oscillation unit is always subjected to a downward moving force; when the oscillation unit vibrates upward and downward, the thin plates can bounce off the liquid drops adhered thereto in the form of mist.

[0012] As a further description of the above technical solution:

[0013] The oscillation unit has two types, one type of oscillation unit has two thin plates fixed on the circular rod, the two thin plates are located at two three-equal-division points of the circular rod respectively, and the other type of oscillation unit has three thin plates fixed on the circular rod, the distance between the two adjacent thin plates of the two types of oscillation units is the same, the two types of oscillation units are staggered, the thin plates of the two types of oscillation units are staggered upward and downward in use, and liquid drops falling from any position can all fall on a certain thin plate.

[0014] As a further description of the above technical solution:

[0015] The wind wheel comprises two support plates which are annular, a plurality of blades are annularly and uniformly distributed between the two support plates, the upper and lower ends of each blade are fixed with the two support plates respectively, the inner end of each blade is inclined to the clockwise direction, a sleeve ring is fixed on the inner wall of the tower body below the air inlet, the wind wheel is located above the sleeve ring, and an end face bearing is arranged between the wind wheel and the sleeve ring, and the wind wheel can be driven to rotate counterclockwise by the exhaust gas flowing into the air inlet; a circular flat plate is fixed to the upper end of the upper support plate, the lower end of each circular rod is spherical and in contact with the flat plate, the spring is in a compressed state when the lower end of the circular rod is in contact with the upper end surface of the flat plate, a plurality of grooves are arranged on the flat plate, the depth of the grooves is smaller than the radius of the circular rod, the lower end of the circular rod is continuously coincided with the grooves when the flat plate is driven to rotate by the wind wheel, so that the vibration effect is realized, and arc-shaped grooves are formed in the flat plate between the grooves to allow the exhaust gas to flow upward and downward.

[0016] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0017] (1) The utility model discloses a set up oscillation unit between the spray head and the air inlet, and the rotation of the wind wheel makes the thin sheet on the round rod vibrate constantly, and then the alkaline solution dropping on the thin sheet splashes in the form of mist drop or small water drop, the contact area of the alkaline solution and the tail gas is increased, the utilization rate of the solution and the tail gas treatment effect are improved, and the oscillation unit vibrating constantly can also shake off the crystal attached to the grid plate, the thin sheet or the round rod, avoids the cavity blockage caused by the crystal growing constantly, and has high practicability.

[0018] (2) The thin sheet can not only avoid the mist drop gathering into water drop, but also make the tail gas form turbulent flow after entering the tower body, accelerate the horizontal diffusion of the tail gas in the lower part of the tower body, avoid the columnar rising of the tail gas, and cause the cavity space waste far from the air inlet.

[0019] (3) The wind wheel of the utility model is driven by the tail gas at the air inlet, and the atomization and anti-blocking effect of the device can be realized without additional power input, which meets the energy-saving and environmental protection emission concept. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the perspective view of the utility model;

[0021] Figure 2 It is the internal structure schematic view of the utility model;

[0022] Figure 3 It is the part drawing of the grid plate of the utility model;

[0023] Figure 4 It is the structure schematic view of the oscillation unit of the utility model;

[0024] Figure 5 It is the assembly schematic view of the wind wheel and the flat plate of the utility model.

[0025] Legend: 1, tower body;2, air inlet;3, exhaust port;4, spray head;5, grid plate;6, wind wheel;7, backwater pipe;8, water pump;9, square groove;10, round groove;11, round rod;12, thin sheet;13, circular ring;14, compression spring;15, support plate;16, blade;17, collar;18, flat plate;19, recess;20, arc groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The alkali washing tower spraying atomization structure is characterized by the following technical solutions:

[0028] An alkali washing tower spraying atomization structure, comprising a tower body 1, the bottom of the tower body 1 is provided with an air inlet 2, the top end of the tower body 1 is provided with an air outlet 3, the top of the inner cavity of the tower body 1 is fixed with a spray head 4; the bottom of the tower body 1 is fixed with a backwater pipe 7, one end of the backwater pipe 7 is located in the tower body 1, the other end of the backwater pipe 7 extends out of the tower body 1 and is fixed with a water pump 8, the water outlet of the water pump 8 is connected with the spray head 4; after the alkaline solution falls to the bottom of the tower body 1, it flows to the spray head 4 again through the backwater pipe 7 and the water pump 8 for recycling;

[0029] The inner cavity of the tower body 1 below the spray head 4 is provided with a grid plate 5, the grid plate 5 has two, and the two grid plates 5 are both fixed horizontally on the inner wall of the tower body 1; the grid plate 5 is a disc, and a plurality of square grooves 9 are uniformly distributed on the disc, and a circular groove 10 is formed between every two square grooves 9, and the tail gas flows upward through the square grooves 9 during use;

[0030] A plurality of oscillation units are arranged between the two grid plates 5, each oscillation unit can move up and down relative to the grid plate 5, and each oscillation unit is always subjected to a downward moving force; the oscillation unit comprises a round rod 11, the upper and lower ends of the round rod 11 are located in the circular grooves 10 of the upper and lower grid plates 5 respectively, a plurality of conical thin plates 12 are fixed on the round rod 11 between the two grid plates 5, the conical mouths of the thin plates 12 are downward, and a set of limiting rings is arranged on the upper and lower parts of the round rod 11 respectively, each set of limiting rings comprises two circular rings 13, the two circular rings 13 in the upper limiting ring are located on the upper and lower sides of the upper grid plate 5 respectively, the two circular rings 13 in the lower limiting ring are located on the upper and lower sides of the lower grid plate 5 respectively, and a compression spring 14 is arranged between the lower circular ring 13 in each set of limiting rings and the grid plate 5, the compression spring 14 makes the oscillation unit always subjected to a downward moving force; when the oscillation unit vibrates up and down, the thin plates 12 can bounce off the liquid droplets adhered thereto in the form of mist;

[0031] Two grid plate 5 below is equipped with wind wheel 6, wind wheel 6 includes support plate 15, support plate 15 has two and is annular, annularly distributed with a plurality of blades 16 between two support plates 15, the upper and lower ends of each blade 16 are fixed with two support plates 15 respectively, the inner end of each blade 16 is inclined to the clockwise direction, a lantern ring 17 is fixed on the inner wall of the tower body 1 below the air inlet 2, the wind wheel 6 is located above the lantern ring 17, and the end face bearing is arranged between the wind wheel 6 and the lantern ring 17, when the exhaust gas flows into the air inlet, the exhaust gas can drive the wind wheel 6 to rotate counterclockwise; the upper end of the upper support plate 15 is fixed with a circular flat plate 18, the lower end of each circular rod 11 is spherical and in contact with the flat plate 18, and the spring is in a compressed state when the circular rod 11 contacts the upper end surface of the flat plate 18, a plurality of grooves 19 are arranged on the flat plate 18, the depth of the groove 19 is less than the radius of the circular rod 11, and the lower end of the circular rod 11 is continuously coincided with the groove 19 when the wind wheel 6 drives the flat plate 18 to rotate, so that the vibration effect is realized; the arc-shaped groove 20 is opened on the flat plate 18 between the grooves 19, so that the exhaust gas can flow up and down.

[0032] The oscillation unit has two kinds, one of which is that the circular rod 11 of the oscillation unit is fixed with two thin plates 12, and the two thin plates 12 are located at two trisection points of the circular rod 11 respectively; the other kind of oscillation unit is that the circular rod 11 of the oscillation unit is fixed with three thin plates 12, the distance between the two adjacent thin plates 12 of the two kinds of oscillation units is the same, the two kinds of oscillation units are staggered, and the thin plates 12 of the two kinds of oscillation units are staggered up and down in use, so that the liquid drops falling from any position will fall on a certain thin plate 12.

[0033] Working principle:

[0034] In use, the exhaust gas flows into the inner cavity of the tower body 1 from the air inlet 2, and then flows to the exhaust port 3 through the arc-shaped groove 20 and the square groove 9, the exhaust gas drives the wind wheel 6 to rotate when entering the tower body 1, the wind wheel 6 drives the flat plate 18 to rotate, and the circular rod 11 in the oscillation unit is continuously embedded in the groove 19 when the flat plate 18 rotates, so that the circular rod 11 and the thin plate 12 vibrate;

[0035] The alkaline solution is sprayed from the upper nozzle 4 in mist, and the mist is fully contacted with the tail gas and falls down, the mist is gathered with each other in the falling process, and the mist falls on the upper grid plate 5 before being gathered into water drops, or falls on a certain sheet 12 through the square groove 9 of the grid plate 5, the mist falling on the grid plate 5 finally also flows to the sheet 12 below, since the round rod 11 and the sheet 12 are always vibrated up and down, the alkaline solution on the sheet 12 is splashed in the form of mist or small water drops when the sheet 12 is vibrated, and the shock unit is continuously vibrated up and down under the pushing of the wind wheel 6, so that the alkaline solution in the cavity between the two grid plates 5 cannot be gathered into large water drops, and is always dropped downward in the form of mist or small water drops, and finally falls to the bottom of the tower body 1 through the lower grid plate 5 and the flat plate 18, and is returned to the nozzle 4 under the action of the water return pipe 7 and the water pump 8;

[0036] The shock unit can not only avoid the gathering of mist into water drops when being vibrated, but also shake off the crystal particles adhered on the grid plate 5 or the shock unit, so as to avoid the blockage of the square groove 9 caused by the increase of the crystal particles; and the sheet 12 in the form of cone can also make the tail gas form turbulent flow, accelerate the horizontal diffusion of the tail gas at the lower part of the tower body 1, and avoid the columnar rising of the tail gas, so as to avoid the waste of the cavity space far away from the air inlet 2.

[0037] In addition, the front end of the water pump 8 can be additionally provided with a filtering device to avoid the damage of the particles in the tail gas to the water pump 8 or the nozzle 4, and a detection device and a liquid inlet pipe can also be additionally provided to monitor the pH value of the alkaline solution in real time and appropriately supplement the alkaline solution.

[0038] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, and those skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A spray atomizing structure of an alkaline washing tower, characterized by The utility model provides a tower body (1), the bottom of tower body (1) is equipped with air inlet (2), the top of tower body (1) is equipped with exhaust port (3), the top of tower body (1) inner chamber is fixed with shower nozzle (4), the inner chamber of tower body (1) below shower nozzle (4) is equipped with grid plate (5), grid plate (5) has two, two grid plates (5) are all fixed horizontally on the inner wall of tower body (1), be equipped with a plurality of oscillation units between two grid plates (5), every oscillation unit can move up and down relative to grid plate (5), and every oscillation unit is always subjected to the force of moving down, the lower of two grid plates (5) is equipped with wind wheel (6), when exhaust gas flows into the air inlet (2), wind wheel (6) can drive oscillation unit to vibrate up and down.

2. The spray atomizing structure of the alkaline washing tower according to claim 1, characterized in that, The bottom of the tower body (1) is fixed with a water return pipe (7), one end of the water return pipe (7) is located in the tower body (1), the other end of the water return pipe (7) extends out of the tower body (1) and is fixed with a water pump (8), the water outlet of the water pump (8) is connected with the shower nozzle (4).

3. The spray atomizing structure of the alkaline washing tower according to claim 1, characterized in that, The grid plate (5) is a disc, a plurality of square grooves (9) are uniformly distributed on the disc, a circular groove (10) is opened between every two square grooves (9).

4. The spray atomizing structure of the alkaline washing tower according to claim 1, characterized in that, The oscillation unit includes a round rod (11), the upper and lower ends of the round rod (11) are located in the circular grooves (10) of the upper and lower grid plates (5) respectively, a plurality of conical thin plates (12) are fixed on the round rod (11) between the two grid plates (5), the conical opening of the thin plate (12) faces downward, a set of limiting rings are arranged on the upper and lower parts of the round rod (11) respectively, each set of limiting rings includes two circular rings (13), the two circular rings (13) in the upper limiting ring are located on the upper and lower sides of the upper grid plate (5) respectively, the two circular rings (13) in the lower limiting ring are located on the upper and lower sides of the lower grid plate (5) respectively, and a compression spring (14) is arranged between the lower circular ring (13) in each set of limiting rings and the grid plate (5), the compression spring (14) makes the oscillation unit always subjected to the force of moving downward.

5. The spray atomizing structure of the alkaline washing tower according to claim 4, characterized in that, The oscillation unit has two types, the round rod (11) of one type of oscillation unit is fixed with two thin plates (12), the two thin plates (12) are located at two trisection points of the round rod (11) respectively, the round rod (11) of another type of oscillation unit is fixed with three thin plates (12), the distance between the adjacent two thin plates (12) of the two types of oscillation units is the same, and the two types of oscillation units are staggered.

6. The spray atomizing structure of the alkaline washing tower according to claim 4, characterized in that, The wind wheel (6) comprises two support plates (15), which are annular, and a plurality of blades (16) are annularly and evenly distributed between the two support plates (15), the upper and lower ends of each blade (16) are fixed with the two support plates (15) respectively, the inner end of each blade (16) is inclined to the clockwise direction, a sleeve ring (17) is fixed on the inner wall of the tower body (1) below the air inlet (2), the wind wheel (6) is located above the sleeve ring (17), and an end face bearing is arranged between the wind wheel (6) and the sleeve ring (17); the upper end of the upper support plate (15) is fixed with a circular flat plate (18), the lower end of each circular rod (11) is spherical and in contact with the flat plate (18), the spring is in a compressed state when the circular rod (11) is in contact with the upper end surface of the flat plate (18), a plurality of grooves (19) are arranged on the flat plate (18), the depth of the groove (19) is smaller than the radius of the circular rod (11), and the lower end of the circular rod (11) is constantly coincided with the groove (19) when the wind wheel (6) drives the flat plate (18) to rotate; the arc-shaped grooves (20) that are penetrated from top to bottom are formed on the flat plate (18) between the grooves (19), so that the tail gas can flow up and down.

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