Cyclonic waste gas treatment device

Abstract

The cyclone type waste gas treatment device comprises a cyclone cylinder, a volute-shaped inlet pipe is arranged on the side portion of the cyclone cylinder, a cyclone outlet is formed in the upper end of the cyclone cylinder, a liquid outlet is formed in the lower end of the cyclone cylinder, and the cyclone cylinder comprises an outer cylinder and an inner cylinder which are coaxially arranged and sequentially arranged from outside to inside; the inlet pipe is connected and communicated with the inner cylinder; the outer side face of the inner cylinder is partially connected with the inner side face of the outer cylinder, and therefore the space between the inner cylinder and the outer cylinder is divided into a plurality of cyclone auxiliary cavities. The inner cylinder is provided with a plurality of cyclone holes corresponding to the cyclone auxiliary cavities, and the inner cylinder is communicated with the cyclone auxiliary cavities. Due to the arrangement of the inner cylinder, liquid flows downwards on the inner wall and the outer wall of the inner cylinder and the inner wall of the outer cylinder, so that the adsorption area of solid particles is increased, and the adsorption rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment devices, in particular to a cyclone type waste gas treatment device. Background Art

[0002] Cyclone exhaust gas treatment devices usually include key components such as cyclone tubes, spray systems, packing layers, demisting layers and fans. When the exhaust gas enters the tower, it is affected by the cyclone plate or special airflow guide device to generate high-speed rotating airflow, i.e. cyclone. This cyclone effect significantly increases the contact area and contact probability between the exhaust gas and the spray liquid, providing favorable conditions for the subsequent purification process.

[0003] However, in practical applications, there are some problems with the design of the cyclone. Since the diameter of the cyclone is usually large, the swirl intensity in the cyclone is relatively low. The lack of swirl intensity means that the rotation speed and energy dissipation rate of the exhaust gas in the cyclone are reduced, thus affecting the mixing effect and purification efficiency between the exhaust gas and the spray liquid.

[0004] In addition, the liquid sprayed by the spray system mainly absorbs the centrifugally separated particles while flowing down along the inner wall of the cyclone. However, due to the limited area of ​​the inner wall of the cyclone, this contact method results in a relatively small effective contact area of ​​the liquid, which in turn limits the removal rate of harmful substances. This problem is particularly prominent when dealing with high-concentration exhaust gas. Summary of the invention

[0005] In order to solve the technical problems in the background technology, the present invention discloses a cyclonic exhaust gas treatment device.

[0006] The present invention provides a cyclonic waste gas treatment device, comprising a tower body, which is provided with a water tank, a cyclone area, a first spray chamber, an adsorption chamber, a second spray chamber and a demisting chamber in sequence from bottom to top; a water pump draws out liquid from the water tank, enters the spray pipes in the first spray chamber and the second spray chamber, and sprays the liquid downward through a spray head; a cyclone cylinder is provided in the cyclone area, a volute-shaped inlet pipe is provided on the side of the cyclone cylinder, and a filler is provided in the adsorption chamber; a water mist adsorbent is provided in the demisting chamber; an air suction port of a fan is connected with an air outlet at the top of the tower body, and waste gas is drawn into the cyclone cylinder through the inlet pipe, and the cyclone cylinder rotates, and particles in the waste gas are thrown toward the inner wall of the cyclone cylinder under the action of centrifugal force, and the liquid sprayed from the first spray chamber flows downward along the inner wall of the cyclone cylinder to adsorb the particles; the cyclone cylinder comprises an outer cylinder and an inner cylinder which are coaxially arranged and sequentially provided from the outside to the inside;

[0007] The outer side surface of the inner cylinder is partially connected to the inner side surface of the outer cylinder, so that the space between the inner cylinder and the outer cylinder is divided into a plurality of independent cyclone sub-cavities; the inner wall of the inner cylinder encloses the cyclone main cavity;

[0008] The inlet pipe is tangent to and communicates with the main cavity of the cyclone;

[0009] The inner cylinder is provided with a plurality of cyclone holes corresponding to the cyclone sub-cavities, connecting the cyclone main cavity with the cyclone sub-cavity;

[0010] After the exhaust gas enters the cyclone main cavity and the cyclone sub-cavity, it flows upward in a vortex shape.

[0011] The beneficial effects of the above arrangement are: 1. The arrangement of the inner cylinder enables liquid to flow downward on the inner and outer walls of the inner cylinder and the inner wall of the outer cylinder, thereby increasing the adsorption area of ​​solid particles and improving the adsorption rate; 2. When the exhaust gas enters the cyclone cylinder, a vortex is formed not only in the inner cylinder, but also in the cyclone sub-cavity, thereby increasing the cyclone intensity of the exhaust gas and improving the removal efficiency of solid particles in the exhaust gas; 3. The exhaust gas forms a primary wind in the inner cylinder with high intensity, and the larger particles in the exhaust gas are more easily thrown to the inner wall of the inner cylinder, and are adsorbed and removed by the liquid flowing downward on the inner wall of the inner cylinder; a secondary wind is formed in the cyclone sub-cavity, and the smaller solid particles are thrown to the inner wall of the outer cylinder and the outer wall of the inner cylinder, and are adsorbed and removed by the liquid flowing downward on the inner wall of the outer cylinder and the outer wall of the inner cylinder; in this way, the fixed particles in the exhaust gas are separated in two stages, and the removal efficiency is higher; 4. The cyclone sub-cavities are independent of each other and will not leak to each other, so that the vortex airflow formed inside them is more stable.

[0012] The position of the cyclone hole directly affects the stability of the vortex formed by the airflow in the cyclone sub-cavity. Based on this, further improvements are: the angle formed by the side wall of the cyclone sub-cavity facing the outlet of the cyclone hole and the axial direction of the cyclone hole is greater than 120°; the cyclone hole is located above the inlet pipe. The cyclone hole is tangent to the inner wall of the inner cylinder, so that the airflow in the inner cylinder can flow into the cyclone sub-cavity through the cyclone hole without resistance; the angle between the cyclone hole and the side wall of the cyclone sub-cavity is set so that when the airflow is reflected by the side wall of the cyclone sub-cavity, the direction of its reflection is far away from the center of the cyclone sub-cavity, which not only reduces the attenuation rate of the side wall to the airflow, but also increases the radial flow path of the airflow in the cyclone sub-cavity, thereby facilitating vortex formation. The position setting of the cyclone hole allows the airflow to form a vortex first in the lower area of ​​the cyclone hole. When the airflow flows upward in a vortex shape, it can not only stably flow into the cyclone hole, but also keep the airflow intensity stable.

[0013] The difference in length and width of the cyclone sub-cavity directly affects the stability of the vortex formed by the airflow in the cyclone sub-cavity. Based on this, further improvements are as follows: the cross-section of the inner hole of the outer cylinder is a first polygon; the outer contour line of the cross-section of the inner cylinder is a second polygon, and the inner contour line of the cross-section of the inner cylinder is a circle; the number of the first polygon and the second polygon is the same, and the first polygon and the second polygon are arranged staggered with each other, so that the space formed between the inner cylinder and the outer cylinder is divided into multiple independent cyclone sub-cavities; the inner cylinder is located at the vertices of the second polygon to form a vortex forming part; the cyclone hole passes through the vortex forming part along the tangent direction of the inner wall of the inner cylinder. In this way, the difference between the length and width of the cross-section of the cyclone sub-cavity is small, which facilitates the formation of vortex airflow. Moreover, the position setting of the cyclone hole extends the length of the cyclone hole, thereby improving the guiding performance of the cyclone hole on the airflow, making the stability of the airflow flowing into the cyclone sub-cavity more stable.

[0014] If the number of edges of the first polygon and the second polygon is too large, the area of ​​the cyclone sub-cavity is too small, and the difference between the length and width of the cyclone sub-cavity is large, it is difficult to form a stable vortex airflow in the cyclone sub-cavity; if the number of edges of the first polygon and the second polygon is too small, the thickness between the inner and outer walls of the outer cylinder is large, resulting in the outer cylinder being too heavy, which will not only cause waste of materials, but also reduce the internal space of the outer cylinder and affect the flow rate of exhaust gas. Based on this, further improvements are: the first polygon and the second polygon are both regular octagons; the connection between the edges of the outer side of the inner cylinder and the outer cylinder is located at the center of the inner side of the inner hole.

[0015] The outer wall of the outer cylinder is circular, and the inner wall is a regular polygon. It is difficult and costly to form the outer cylinder in one piece. Based on this, further improvements are made in that: the inner wall of the outer cylinder is connected with a partition whose cross section is a regular polygon; the upper end of the cavity formed between the outer cylinder and the partition is sealed by a sealing plate.

[0016] If the inner cylinder is also formed by welding a round tube and a regular polygonal tube, the structure of the cyclone hole will be unstable and the precision will be low. Based on this, a further improvement is that the cyclone forming part and the inner cylinder are integrally formed.

[0017] The packing is used to increase the contact area between the airflow and the liquid and improve the efficiency of removing impurities in the exhaust gas. However, in actual use, since the packing holes in the packing are all through holes, when the liquid and the exhaust gas flow relatively in the same packing hole, there will inevitably be some situations where the exhaust gas and the liquid flow are staggered, resulting in these exhaust gases not contacting the liquid. Based on this, further improvements are: a turntable driven by a motor is provided at the lower end of the packing; the upper side of the turntable is in contact with the lower side of the packing; the turntable is provided with through grooves running through the upper and lower sides; the through grooves are arranged in a plurality of rotationally symmetrical and spaced apart arrangements; the part of the turntable between two adjacent through grooves is provided as a shielding portion; the shapes of the through grooves and the shielding portion are arranged so that the through grooves and the shielding portion can both cover the packing holes on the packing; a liquid film forming cavity is formed at the upper part of the packing hole, and a hollow film forming frame is provided in the liquid film forming cavity; a water accumulation cavity is formed at the lower part of the packing hole, and when the lower end of the packing hole is blocked by the shielding portion, the liquid accumulates in the water accumulation cavity. With such a configuration, the shielding part will block the lower end of some of the filling holes. During the blocking, the liquid will form a liquid film at the hollow part of the film-forming frame and accumulate to a certain depth in the water accumulation chamber. The accumulated liquid will block the filling hole. When the turntable rotates, the edge of the shielding part gradually moves away from the filling hole. A downwardly protruding liquid film will first be formed at the lower end of the filling hole. The liquid film will first contact with the exhaust gas and absorb impurities in the exhaust gas. Then the liquid will flow downward from the filling hole, contact with the exhaust gas, and absorb impurities in the exhaust gas. Since it takes a certain amount of time for the accumulated liquid to flow out of the filling hole, during this period of time, the filling hole is always blocked by the liquid. When the liquid absorbs impurities in the exhaust gas, the exhaust gas will not enter the filling hole. When the exhaust gas enters the filling hole, it will also contact the liquid film. Due to the large surface area of ​​the liquid film, the removal efficiency of impurities in the exhaust gas is improved. Moreover, when the accumulated liquid flows downward from the filling hole, its flow rate is relatively fast, which can play a flushing role and remove impurities accumulated in the filling hole.

[0018] In order to increase the area of ​​the liquid film, a further design is that the outer side surface of the film-forming frame forms a spherical shape that bulges upward.

[0019] The specific structure of the film-forming frame is as follows: it includes a horizontally arranged fixed ring, the upper end of which is connected to two arc-shaped, vertically intersecting connecting rods, and the connecting rods are also connected to connecting rings that are parallel to the fixed ring and arranged at intervals, so that the film-forming frame forms an upwardly protruding sphere; the lower end of the fixed ring is vertically connected to a positioning rod that is evenly arranged circumferentially, and the positioning rod rests against the inner wall of the packing hole. Such an arrangement not only provides sufficient flow area for the liquid to flow downward, but also forms a stable support for the liquid film, making the liquid film more stable. The positioning rod is also used for the installation limit of the film-forming frame to ensure that the fixed ring is perpendicular to the packing hole to improve the stability of the liquid film. Moreover, when the position of the film-forming frame is misaligned, or the airflow intensity is too large to cause the liquid film to rupture, multiple water droplets will also be formed at the lower end of the film-forming frame, which can also increase the contact area with the exhaust gas.

[0020] Furthermore, the lower end of the positioning rod is provided with an arc rod protruding outward, the arc rod abuts against the inner wall of the packing hole; the arc rod is bent inward. The arrangement of the arc rod allows a gap to exist between the spherical part of the film-forming frame and the inner wall of the packing hole, so that the liquid can flow downward from the space between the film-forming frame and the packing hole, thereby preventing the liquid film formed at the upper end of the film-forming frame from blocking the downward flow of the liquid and reducing the depth of the liquid accumulated in the water accumulation chamber. The arc rod is bent inward to prevent the packing from being scratched when the film-forming frame is installed.

[0021] The beneficial effects of the present invention are:

[0022] The cyclone type exhaust gas treatment device of the present invention is provided with an inner cylinder so that liquid flows downward on both the inner and outer walls of the inner cylinder and the inner wall of the outer cylinder, thereby increasing the adsorption area of ​​solid particles and improving the adsorption rate.

[0023] A cyclonic exhaust gas treatment device in the present invention utilizes that when the exhaust gas enters the cyclone cylinder, a vortex is formed not only in the inner cylinder but also in the cyclone sub-cavity, thereby increasing the cyclonic flow intensity of the exhaust gas and thus increasing the removal efficiency of solid particles in the exhaust gas;

[0024] A cyclone type exhaust gas treatment device in the present invention forms a primary wind in the inner cylinder through the exhaust gas, which has high strength, and larger particles in the exhaust gas are more easily thrown to the inner wall of the inner cylinder, and the liquid flowing downward on the inner wall of the inner cylinder is adsorbed and removed; a secondary wind is formed in the cyclone sub-cavity, and smaller solid particles are thrown to the inner wall of the outer cylinder and the outer wall of the inner cylinder, and the liquid flowing downward on the inner wall of the outer cylinder and the outer wall of the inner cylinder is adsorbed and removed; in this way, the fixed particles in the exhaust gas are separated in two stages, and the removal efficiency is higher;

[0025] A cyclonic exhaust gas treatment device in the present invention is independent of each other through the cyclonic sub-cavities, and there will be no leakage between them, so that the vortex airflow formed inside is more stable;

[0026] A cyclonic waste gas treatment device in the present invention blocks the lower end of some packing holes through a shielding portion, so that liquid accumulates to a certain depth in the blocked packing holes. The accumulated liquid blocks the packing holes. When the turntable rotates and the edges of the shielding portion gradually move away from the packing holes, a downwardly protruding liquid film will first be formed at the lower end of the packing holes. The liquid film will first contact with the waste gas and absorb impurities in the waste gas. Then the liquid will flow downward from the packing holes, contact with the waste gas, and absorb impurities in the waste gas. Since it takes a certain amount of time for the accumulated liquid to flow out of the packing holes, during this period of time, the packing holes are always blocked by liquid. When the liquid absorbs impurities in the waste gas, the waste gas will not enter the packing holes, thereby improving the efficiency of removing impurities in the waste gas. Moreover, when the accumulated liquid flows downward from the packing holes, its flow rate is relatively fast, which can play a flushing role and remove impurities accumulated in the packing holes.

[0027] A cyclonic waste gas treatment device in the present invention forms an upwardly protruding spherical liquid film on the top of a film-forming frame, thereby increasing the contact area with the waste gas and improving the removal efficiency of impurities in the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0031] Figure 3 It is a front view of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the cyclone;

[0033] Figure 5 It is a top view of the cyclone;

[0034] Figure 6 yes Figure 5 Sectional view of AA in the middle;

[0035] Figure 7 yes Figure 6 Cross-sectional view of the middle BB;

[0036] Figure 8 It is a schematic diagram of the installation structure of the motor, turntable and filler;

[0037] Fig. 9 Relative to Figure 8 A front cross-sectional view of

[0038] Fig.10 yes Fig. 9 Enlarged view of point C in the middle;

[0039] Fig.11 It is a structural schematic diagram of the film forming frame;

[0040] Fig.12 It is a schematic diagram of the structure of the liquid film or water droplets formed on the film-forming frame;

[0041] Fig.13 This is the main view of the turntable, in which the shadow lines are only used to distinguish the through slot and the shielding part.

[0042] In the figure: 1, cyclone tube; 2, filler; 3, motor; 4, turntable; 5, film-forming frame; 6, tower body; 7, spray pipe; 8, nozzle; 9, cyclone plate; 10, water pump; 11, liquid film; 12, water drop; 21, filler hole; 41, through groove; 42, shielding part; 51, fixing ring; 52, connecting rod; 53, connecting ring; 54, positioning rod; 55, arc rod; 61, water tank; 62, cyclone area; 63, first spray chamber; 64, Adsorption chamber; 65, second spray chamber; 66, defog chamber; 67, air outlet; 101, inlet pipe; 102, cyclone outlet; 103, liquid outlet; 104, outer cylinder; 105, inner cylinder; 106, cyclone sub-chamber; 107, cyclone hole; 108, cyclone forming part; 109, partition; 110, sealing plate; 211, liquid film forming chamber; 212, water accumulation chamber; 1041, inner hole; 1051, cyclone main chamber; A, angle. DETAILED DESCRIPTION

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0044] like Figure 1-3 As shown, the present invention discloses a cyclonic exhaust gas treatment device, including a tower body 6, in which a water tank 61, a cyclone area 62, a first spray chamber 63, an adsorption chamber 64, a second spray chamber 65 and a demisting chamber 66 are sequentially arranged from bottom to top. The first spray chamber 63 and the second spray chamber 65 are both provided with a horizontally arranged spray pipe 7, and a nozzle 8 is installed at the lower end of the spray pipe 7. The adsorption chamber 64 is provided with a filler 2 for increasing the contact area between gas and liquid; the demisting chamber 66 is provided with a demisting agent; and the top of the tower body 6 is an air outlet 67. A water pump 10 is installed on the outside of the water tank 1 to extract the liquid in the water tank 61 and input it into the spray pipe 7, and the nozzle 8 sprays the liquid out. The cyclone zone 62 is provided with a vertically arranged cyclone tube 1, and a volute-shaped inlet pipe 101 is provided on the side of the cyclone tube 1, the upper end is a cyclone outlet 102, and the lower end is a liquid outlet 103; a horizontally arranged cyclone plate 9 is provided near the top of the cyclone tube 1. The liquid in the first spray chamber 63 is sprayed to the inner wall of the cyclone tube 1, and flows downward along the inner wall of the cyclone tube 1; the liquid in the second spray chamber 65 is sprayed to the filler 2. The air intake of the fan is connected with the air outlet 67. When the fan is started, the exhaust gas enters the cyclone tube 1 through the inlet pipe 101 and rotates. The fixed particles in the exhaust gas are thrown to the inner wall of the cyclone tube 1 under the action of centrifugal force, and come into contact with the liquid on the inner wall of the cyclone tube 1 and are adsorbed; when the airflow passes through the cyclone plate 9, its vortex intensity is higher. When the airflow enters the packing 2 , it contacts the liquid in the packing 2 to remove impurities in the exhaust gas; when the airflow enters the defogger chamber 66 , the water mist in the airflow is absorbed by the defogger, and finally the airflow flows out from the air outlet 67 .

[0045] like Figure 4-7 As shown, the cyclone cylinder 1 includes an outer cylinder 104 and an inner cylinder 105 which are coaxially arranged and arranged in sequence from the outside to the inside; the inlet pipe 101 is connected and communicated with the inner cylinder 105. The inner wall of the outer cylinder 104 is connected with a partition 109, and the cross-section of the partition 109 is a first polygon. A plurality of independent cavities are formed between the outer cylinder 104 and the partition 109, and the upper ends of the cavities are blocked by a sealing plate 110. Since the exhaust gas will not enter the cavity, if the falling liquid enters the cavity, it will cause liquid waste, so the sealing plate 110 blocks the upper end of the cavity to prevent the falling liquid from entering the cavity. Such a configuration simplifies the structure and reduces the cost compared to the outer cylinder 104 which is integrally formed and sets the inner hole 1041 into a regular polygon.

[0046] The outer contour line of the cross section of the inner cylinder 105 is a second polygon, and the inner contour line of the cross section is a circle. The edge of the outer wall of the inner cylinder 105 is connected to the center position of the inner side surface of the inner hole 1041. The adjacent two sides of the partition 109 and one side of the outer wall of the inner cylinder 105 form a triangular and independent cyclone secondary cavity 106, and the inner cylinder 105 encloses the cyclone main cavity 1051.

[0047] In this embodiment, the first polygon and the second polygon are both regular octagons, which are used to avoid that the number of sides of the first polygon and the second polygon is too large, resulting in the cross-sectional area of ​​the cyclone sub-chamber 106 being too small, and the difference between the length and width of the cyclone sub-chamber 106 is large, making it difficult to form a stable vortex airflow in the cyclone sub-chamber 106; to avoid that the number of sides of the first polygon and the second polygon is too small, the space between the outer cylinder 104 and the partition 109 is too large, thereby reducing the effective space for the airflow inside the outer cylinder 104 and affecting the flow rate of the exhaust gas.

[0048] like Figure 6 and Figure 7 As shown, the inner cylinder 105 is provided with eight cyclone holes 107 corresponding to the cyclone sub-cavity 106, connecting the inner cylinder 105 with the cyclone sub-cavity 106. The cyclone holes 107 penetrate the cyclone forming portion 108. In this way, the length of the cyclone holes 107 is extended, thereby improving the guiding performance of the cyclone holes 107 on the airflow, so that the stability of the airflow flowing into the cyclone sub-cavity 106 in a directional manner is higher.

[0049] The cyclone hole 107 is located above the inlet pipe, so that the airflow first forms a vortex in the area below the cyclone hole 107. When the airflow flows upward in a vortex shape, it can not only stably flow into the cyclone hole 107, but also maintain a stable airflow intensity.

[0050] The structural setting of the cyclone sub-chamber 106 makes the difference between the length and width of the cross section of the cyclone sub-chamber 106 small, providing sufficient rotation space for the exhaust gas, so that the exhaust gas can form a vortex in the cyclone sub-chamber 106. The inlet direction of the cyclone hole 107 is tangent to the inner wall of the inner cylinder 105; the angle formed by the side wall of the cyclone sub-chamber 106 facing the outlet of the cyclone hole 107 and the axial direction of the cyclone hole 107 is greater than 120°. The setting of the cyclone hole 107 being tangent to the inner wall of the inner cylinder 105 allows the airflow in the inner cylinder 105 to flow into the cyclone sub-chamber 106 through the cyclone hole 107 without resistance; the angle setting of the cyclone hole 107 and the side wall of the cyclone sub-chamber 106 makes the airflow reflected by the side wall of the cyclone sub-chamber 106, and the direction of its reflection is far away from the center of the cyclone sub-chamber 106, which not only reduces the attenuation rate of the side wall to the airflow, but also increases the radial flow path of the airflow in the cyclone sub-chamber 106, so as to facilitate the vortex formation.

[0051] The advantages of this embodiment are: 1. The arrangement of the inner cylinder 105 enables the inner and outer walls of the inner cylinder 105 and the inner wall of the outer cylinder 104 to have liquid flowing downward, thereby increasing the adsorption area of ​​solid particles and improving the adsorption rate; 2. When the exhaust gas enters the cyclone cylinder 1, a vortex is formed not only in the inner cylinder 105, but also in the cyclone sub-cavity 106, thereby increasing the cyclone intensity of the exhaust gas and improving the removal efficiency of solid particles in the exhaust gas; 3. The exhaust gas forms a primary wind in the inner cylinder 105, which has high intensity and is relatively strong in the exhaust gas. Large particles are more easily thrown toward the inner wall of the inner cylinder 105, and are adsorbed and removed by the liquid flowing downward on the inner wall of the inner cylinder 105; secondary wind is formed in the cyclone sub-chamber 106, and smaller solid particles are thrown toward the inner wall of the outer cylinder 104 and the outer wall of the inner cylinder 105, and are adsorbed and removed by the liquid flowing downward on the inner wall of the outer cylinder 104 and the outer wall of the inner cylinder 105; in this way, the fixed particles in the exhaust gas are separated in two stages, and the removal efficiency is higher; 3. The cyclone sub-chambers 106 are independent of each other and will not leak to each other, so that the vortex airflow formed therein is more stable.

[0052] In actual use, since the packing hole 21 is a linear through hole, when the liquid and the exhaust gas flow relatively in the same packing hole 21, there will inevitably be some exhaust gas and liquid flow staggered, resulting in these exhaust gases not contacting the liquid, so the following design is made: Figure 8-10 As shown, a circular rotating disk 4 driven by a motor 3 is disposed at the lower end of the filler 2; the upper side of the rotating disk 4 abuts against the lower side of the filler 2. Figure 8As shown, the turntable 4 is provided with three fan-shaped through grooves 41 which are evenly arranged in the axial direction and penetrate the upper and lower sides, and the area between the through grooves 41 constitutes a shielding portion 42. In other embodiments, the number of through grooves 41 can also be set to four. The lower part of the filling hole 21 is a water accumulation chamber 212. When the turntable 4 blocks the filling hole 21, the liquid accumulates in the water accumulation chamber 212. In this way, the shielding portion 42 will block the lower end of part of the filling hole 21, so that the liquid can accumulate to a certain depth in the water accumulation chamber 212. The accumulated liquid blocks the filling hole 21. When the turntable 4 rotates, the edge of the shielding portion 42 gradually moves away from the filling hole 21. A downwardly protruding liquid film 11 will first be formed at the lower end of the filling hole 21. The liquid film 11 will first contact with the exhaust gas and absorb impurities in the exhaust gas. Moreover, the surface area of ​​the liquid film 11 is large, which can increase the efficiency of absorbing impurities in the exhaust gas. Then the liquid will flow downward from the packing hole 21, contact with the exhaust gas, and absorb the impurities in the exhaust gas. Since it takes a certain amount of time for the accumulated liquid to flow out of the packing hole 21, during this period of time, the packing hole 21 is always blocked by the liquid. When the liquid absorbs the impurities in the exhaust gas, the exhaust gas will not enter the packing hole 21, thereby reducing the impurity content entering the packing hole 21 and improving the removal efficiency of the impurities in the exhaust gas. In addition, when the accumulated liquid flows downward from the packing hole 21, its flow rate is fast, which can play a flushing role and remove the impurities accumulated in the packing hole 21.

[0053] like Fig. 9 and Fig.10 As shown, the upper part of the filling hole 21 is a liquid film forming cavity 211, and a plurality of spherical film forming racks 5 protruding upward are installed inside the cavity. The number of film forming racks 5 is set according to the length of the liquid film forming cavity 211.

[0054] like Fig.11 As shown, the film forming frame 5 includes a horizontally arranged fixing ring 51, the upper end of which is connected to two arc-shaped connecting rods 52 that intersect vertically, and the connecting rods 52 are also connected to connecting rings 53 that are parallel to the fixing ring 51 and arranged at intervals, so that the film forming frame 5 forms a spherical shape that bulges upward. Fig.12 As shown in FIG. 1 , when the liquid falls onto the film-forming frame 5, a liquid film 11 protruding upward is formed under the action of the film-forming frame 5. When the exhaust gas flows, it will inevitably contact the liquid film 11, thereby further improving the absorption efficiency of impurities in the exhaust gas. Moreover, when the position of the film-forming frame 5 is misaligned or the airflow intensity is too large, the liquid film 11 will rupture. Fig.12 As shown, a plurality of water droplets will also be formed at the lower end of the film forming frame 5, which can also increase the contact area between the liquid and the exhaust gas.

[0055] The lower end of the fixing ring 51 is also vertically connected to six rotationally symmetrical positioning rods 54 , which abut against the hole wall of the mounting hole 22 and are used to limit the installation of the film forming frame 5 to ensure that the fixing ring 51 is perpendicular to the mounting hole 22 to improve the forming stability of the liquid film 11 .

[0056] The lower end of the connecting rod 54 is bent inwardly to prevent the filler 2 from being scratched when the film forming frame 5 is installed.

[0057] The connecting rod 54 is also provided with an outwardly arched arc rod 55, which abuts against the inner wall of the filling hole 21, so that a gap is provided between the fixing ring 51 and the hole wall of the filling hole 21, and the liquid can flow directly downward from this gap, avoiding the liquid film 11 formed on the upper end of the film-forming frame 5 from blocking the downward flow of the liquid, thereby reducing the depth of liquid accumulation in the water accumulation chamber 212.

[0058] The working principle of the above-mentioned cyclone type exhaust gas treatment device is as follows:

[0059] 1. The water pump 10 draws the liquid in the water tank 61 into the spray pipe 7, and sprays it downward from the nozzle 8 on the spray pipe 7; the liquid sprayed downward from the first spray chamber 63 flows downward along the inner and outer walls of the inner tube 105 and the inner wall of the outer tube 104; the liquid sprayed downward from the second spray chamber 65 flows downward along the inner wall of the filling hole 21, and when the lower end of the filling hole 21 is blocked, a liquid film is formed at the hollow part of the film forming frame 5; the liquid flows downward and finally flows into the filter frame in the water tank 61, so that the liquid can be recycled;

[0060] 2. When the wind is started, the exhaust gas enters the cyclone main chamber 1051 located in the lower area of ​​the cyclone hole 107 from the inlet pipe 101, and forms a vortex airflow in this area; as the airflow flows upward, the airflow forms a vortex in the cyclone main chamber 1051, and throws large particles of impurities to the inner wall of the inner cylinder 105; part of the airflow enters the cyclone sub-chamber 106 along the cyclone hole 107, and forms a vortex in the cyclone sub-chamber 106, and throws small particles of impurities to the outer wall of the inner cylinder 105 and the inner wall of the outer cylinder 104. The particle impurities contact and are adsorbed by the liquid on the inner and outer walls of the inner cylinder 105 and the inner wall of the outer cylinder 104, and flow downward into the filter frame under the action of the liquid flow. The airflow in the cyclone main chamber 1051 continues to flow upward, increases the vortex intensity after passing through the cyclone plate 9, and flows into the packing hole 21; the airflow in the cyclone sub-chamber 106 also flows into the packing hole 21; in the packing hole 21, the exhaust gas contacts with the liquid, and the impurities in the exhaust gas are absorbed by the liquid and flow downward with the liquid; the airflow through the packing hole 21 enters the defogger chamber 66, contacts with the defogger in the defogger chamber 66, and the defogger absorbs the droplets in the airflow, and finally the dry gas flows out from the air outlet 67.

[0061] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cyclonic waste gas treatment device, comprising a tower body (6), wherein the tower body (6) is provided with a water tank (61), a cyclone zone (62), a first spray chamber (63), an adsorption chamber (64), a second spray chamber (65) and a demisting chamber (66) in sequence from bottom to top; a water pump (10) draws liquid out of the water tank (61), enters the spray pipe (7) in the first spray chamber (63) and the second spray chamber (65), and sprays the liquid downward through a spray head (8); a cyclone cylinder (1) is provided in the cyclone zone (62), a volute-shaped inlet pipe (101) is provided on the side of the cyclone cylinder (1), and a filler (2) is provided in the adsorption chamber (64); an air intake of a fan is connected to an air outlet (67) at the top of the tower body (6), characterized in that: The cyclone cylinder (1) comprises an outer cylinder (104) and an inner cylinder (105) which are coaxially arranged and arranged in sequence from the outside to the inside; The outer side surface of the inner cylinder (105) is partially connected to the inner side surface of the outer cylinder (104), so that the space between the inner cylinder (105) and the outer cylinder (104) is divided into a plurality of independent cyclone sub-cavities (106); the inner circle of the inner cylinder (105) encloses a cyclone main cavity (1051); The inlet pipe (101) is tangent to and communicates with the cyclone main chamber (1051); The inner cylinder (105) is provided with a plurality of cyclone holes (107) corresponding to the cyclone sub-cavities (106), so as to connect the cyclone main cavity (1051) with the cyclone sub-cavity (106); After entering the cyclone main chamber (1051) and the cyclone secondary chamber (106), the exhaust gas flows upward in a vortex shape.

2. A cyclonic exhaust gas treatment device according to claim 1, characterized in that: The angle (A) formed between the side wall of the cyclone sub-cavity (106) facing the outlet of the cyclone hole (107) and the axial direction of the cyclone hole (107) is greater than 120°; The cyclone hole (107) is located above the inlet pipe (101).

3. A cyclonic exhaust gas treatment device according to claim 2, characterized in that: The cross section of the inner hole (1041) of the outer cylinder (104) is a first polygon; The outer contour line of the cross section of the inner cylinder (105) is a second polygon, and the inner contour line of the cross section of the inner cylinder (105) is a circle; the first polygon and the second polygon have the same number of lines, and the first polygon and the second polygon are arranged staggered with each other, so that the space formed between the inner cylinder (105) and the outer cylinder (104) is divided into a plurality of independent cyclone sub-cavities (106); The inner cylinder (105) is located at each vertex of the second polygon to form a swirl forming portion (108); The cyclone hole (107) penetrates the cyclone forming portion (108) along the tangent direction of the inner wall of the inner cylinder (105).

4. A cyclonic exhaust gas treatment device according to claim 3, characterized in that: The first polygon and the second polygon are both regular octagons; The connection between the edge of the outer side surface of the inner cylinder (105) and the outer cylinder (104) is located at the center of the inner side surface of the inner hole (1041).

5. A cyclonic exhaust gas treatment device according to claim 3, characterized in that: The inner wall of the outer cylinder (104) is connected to a partition plate (109) having a regular polygonal cross section; The upper end of the cavity formed between the outer cylinder (104) and the partition (109) is sealed by a sealing plate (110).

6. A cyclonic exhaust gas treatment device according to claim 3, characterized in that: The swirl forming portion (108) and the inner cylinder (105) are integrally formed.

7. The cyclonic exhaust gas treatment device according to claim 1, characterized in that: A rotating disk (4) driven to rotate by a motor (3) is provided at the lower end of the filler (2); The upper side of the rotating disk (4) contacts the lower side of the filler (2); The rotating disk (4) is provided with a through slot (41) penetrating the upper and lower sides; The through grooves (41) are arranged in a plurality of rotationally symmetrical and spaced-apart configurations; The portion of the rotating disk (4) between two adjacent through slots (41) is set as a shielding portion (42); The shapes of the through groove (41) and the shielding portion (42) are arranged such that both the through groove (41) and the shielding portion (42) can cover the filler hole (21) on the filler (2); A liquid film forming cavity (211) is formed at the upper portion of the filling hole (21), and a hollow film forming frame (5) is arranged in the liquid film forming cavity (211); A water accumulation chamber (212) is formed at the lower portion of the filling hole (21), and when the lower end of the filling hole (21) is blocked by the blocking portion (42), liquid accumulates in the water accumulation chamber (212).

8. A cyclonic exhaust gas treatment device according to claim 7, characterized in that: The outer side surface of the film forming frame (5) is in the shape of a sphere protruding upward.

9. A cyclonic exhaust gas treatment device according to claim 8, characterized in that: The film forming frame (5) comprises a horizontally arranged fixing ring (51), the upper end of the fixing ring (51) is connected to two arc-shaped connecting rods (52) intersecting vertically, and the connecting rods (52) are also connected to connecting rings (53) arranged parallel to the fixing ring (51) and spaced apart, so that the film forming frame (5) forms a spherical shape protruding upwards; The lower end of the fixing ring (51) is vertically connected to positioning rods (54) evenly arranged around the circumference, and the positioning rods (54) abut against the inner wall of the filling hole (21).

10. A cyclonic exhaust gas treatment device according to claim 9, characterized in that: The lower end of the positioning rod (54) is provided with an outwardly protruding arc rod (55), and the arc rod (55) abuts against the inner wall of the filling hole (21); The arc-shaped rod (55) is bent inwardly.

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