Cyclonic hybrid waste gas dust purification tower

Abstract

A cyclone mixed waste gas dust purification tower comprises a tower body, a cyclone device, a spraying device, multiple layers of tower plates, filler balls, a water circulation device and an efficient demisting device, the tower body is of a vertical multi-cavity cylindrical structure, and a waste gas inlet cavity, a multi-stage tower plate purification cavity and a demisting cavity are formed in the tower body; the rotational flow device comprises a tangential air inlet and a plurality of groups of circular rotational flow barrels, a spiral guide vane is arranged in each rotational flow barrel along the radial direction, and a filler ball is arranged on each vane; the spraying device comprises a spraying ring pipe, a plurality of groups of spiral nozzles and a spraying liquid return pipeline; the multi-layer tower plate is arranged in the multi-stage tower plate purification cavity and consists of a plurality of layers of annular tower plates which are vertically arranged at intervals; the efficient demisting device is located in the demisting cavity and comprises a corrugated demisting plate and a liquid collecting tank, and the liquid collecting tank is arranged below the corrugated demisting plate; the water circulating device is arranged at the bottom of the tower body and comprises a liquid storage tank, a circulating water pump and a multi-stage filtering unit, the waste gas purification efficiency is improved, and resource recycling is optimized.

Description

TECHNICAL FIELD

[0001] The patent relates to a cyclone mixed motion waste gas dust purification tower. BACKGROUND

[0002] Industrial waste gas usually contains various pollutants, including particulate matter, dust, water mist and soluble harmful gas. The traditional waste gas purification equipment has the following shortcomings in application:

[0003] 1. Low efficiency of particulate matter separation

[0004] Simple cyclone separators or gravity settling devices are commonly used in the prior art to treat particulate matter in waste gas, but these devices usually have poor separation effect on small or sticky particles, resulting in excessive load on subsequent treatment and affecting overall purification efficiency.

[0005] 2. Low water recycling rate and serious resource waste

[0006] In the water recycling system of the traditional spray tower, most only set simple settling devices, which cannot effectively remove suspended particulate matter and soluble pollutants in waste water, resulting in gradual increase of pollution degree of spray liquid, frequent replacement, causing waste of water resources and increase of operation cost.

[0007] In summary, the technical background part of the patent aims to describe the current situation in the prior art, and the shortcomings of the prior art show that this part will provide necessary background information for understanding the technical contribution and innovation points of the patent. The signals disclosed in this background technology part only aim to increase the understanding of the overall background of the patent and should not be considered as implying subjective consciousness in any form. CONTENT OF THE INVENTION

[0008] In view of the above, the purpose of the patent is to provide a cyclone mixed motion waste gas dust purification tower.

[0009] The technical scheme adopted to achieve the purpose of the patent is a cyclone mixed waste gas dust purification tower, comprising a tower body, a cyclone device, a spraying device, a multi-layer tower plate, a filler ball, a water circulation device and a high-efficiency demisting device, the tower body is a vertical multi-cavity cylindrical structure, the inside of the tower body is respectively provided with a waste gas inlet cavity, a multi-stage tower plate purification cavity and a demisting cavity in the vertical direction, and the outside of the tower body is provided with a waste gas inlet and a purified gas outlet; the cyclone device is installed in the waste gas inlet cavity and comprises a tangential air inlet and multiple circular cyclone barrels, the tangential air inlet is coaxially connected with the inlet of the cyclone barrel, a spiral guide vane is arranged in each cyclone barrel in the radial direction, the vane is arranged in an inclined manner along the barrel wall, the inclination angle of the vane is 25° to 45°, the vane is provided with a filler ball, and the filler ball rotates together with the vane; the spraying device is arranged in the multi-stage tower plate purification cavity and comprises a spraying ring pipe, multiple spiral nozzles and a spraying liquid return pipeline, the spraying liquid is pumped from the water circulation device by a circulating water pump, and the nozzles form a high-efficiency atomization layer by spraying; the multi-layer tower plate is arranged in the multi-stage tower plate purification cavity and is composed of multiple vertically and spaced-apart annular tower plates, each tower plate is provided with uniformly distributed gas-liquid perforations, and the edge of the tower plate is provided with a liquid guide groove for guiding the washing liquid to return to the water circulation device; the high-efficiency demisting device is located in the demisting cavity and comprises a corrugated demisting plate and a liquid collecting tank, the corrugated demisting plate is a corrugated structure arranged in multiple layers from top to bottom, the wave crests and wave troughs of the corrugated plate are arranged alternately, the high-efficiency condensation of water mist in the gas is realized by forming multiple airflow deflections, the liquid collecting tank is arranged below the corrugated demisting plate and is connected with the edge of the corrugated plate for collecting the condensed liquid drops, the bottom of the liquid collecting tank is provided with a liquid outlet, and the liquid outlet is connected to the water circulation device through a pipeline; the water circulation device is arranged at the bottom of the tower body and comprises a liquid storage tank, a circulating water pump and multiple-stage filtration units, the liquid storage tank is located at the bottom of the tower body and has a trapezoidal structure to facilitate particle deposition, the bottom is provided with a deposition area and a blowdown port, the circulating water pump is connected to the liquid storage tank and the spraying device through a return pipeline, and the multiple-stage filtration units are located between the return port of the liquid storage tank and the spraying liquid inlet and comprise a primary coarse filter screen, a secondary fine filter layer and a tertiary activated carbon adsorption unit for removing particulate matter and soluble organic pollutants.

[0010] Further, the filler ball is modified polypropylene, and a hydrophobic layer is coated on the surface to reduce the adhesion of viscous pollutants and improve the service life of the filler ball.

[0011] Further, the gas-liquid perforations of each tower plate in the multi-layer tower plate are arranged in an up-and-down staggered manner to increase the flow path of the waste gas in the tower, thereby improving the purification efficiency.

[0012] Further, the spraying ring pipe is arranged in a circumferential ring around the multi-layer tower plate, the spraying ring pipe of each tower plate is fixed to the inner wall of the tower body through a clamping piece, and the spraying ring pipe is provided with multiple spraying joints.

[0013] Further, the bottom of the liquid storage tank is arranged in an inclined manner to accelerate the return of the liquid and reduce the residence time.

[0014] Further, the waste gas inlet is located below the tangential direction of the waste gas inlet cavity and is connected with the cyclone device; and the purified gas outlet is located on the side of the demisting cavity.

[0015] The beneficial effects of the patent are:

[0016] 1. Multi-stage purification, significantly improved efficiency

[0017] The patent removes particles and pollutants from waste gas through the synergistic effect of the cyclone device, the spraying device, the multi-layer tower plate, and the high-efficiency demisting device. The initial cyclone separation effectively removes larger particles, the spraying of atomized liquid and the multi-layer tower plate enhance the gas-liquid contact area and time, and the high-efficiency demisting device further removes residual water mist, finally significantly improving the purification efficiency of waste gas.

[0018] 2. Resource conservation, green environmental protection

[0019] The water circulation device of the patent effectively treats the spraying liquid through the multi-stage filtration unit, making the liquid circulate and reducing wastewater discharge, while reducing operating costs. The activated carbon adsorption unit in the three-stage filtration unit effectively removes soluble pollutants in the spraying liquid, further reducing the risk of secondary pollution. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the patent or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the patent, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 is a structural schematic diagram of the patent;

[0022] Figure 2 is a top view of the cyclone device of the patent;

[0023] Figure 3 is a top view of the tower plate of the patent;

[0024] Figure 4 is a top view of the demisting plate of the patent;

[0025] In the drawings, 103 is a waste gas inlet cavity, 102 is a multi-stage tower plate purification cavity, 101 is a demisting cavity, 201 is a filler ball, 202 is a blade, 301 is a tower plate, 302 is a liquid guide groove, 401 is a demisting plate, 402 is a liquid collecting groove connection port, 501 is a liquid storage tank, 502 is a circulating water pump, 503 is a multi-stage filtration unit, and 504 is a backflow pipe. DETAILED DESCRIPTION

[0026] The specific embodiments of the patent will be described in detail below with reference to the accompanying drawings, so that the technical content of the patent can be better understood, but the patent should not be limited thereto.

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the patent will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] As Figures 1-3 shown, the patent provides a cyclone mixed waste gas dust purification tower, which comprises a tower body, a cyclone device, a spraying device, a multi-layer tower plate, a filler ball, a water circulation device and a high-efficiency demisting device.

[0029] In the embodiment, the tower body is designed as a vertical multi-cavity cylindrical structure, which is sequentially divided into a waste gas inlet cavity, a multi-stage tower plate purification cavity and a demisting cavity in the vertical direction. The external structure of the tower body comprises a waste gas inlet and a purified gas outlet. The waste gas inlet is arranged below the tangential direction of the inlet cavity to form a tangential gas inlet mode, which helps to enhance the rotation effect of the gas flow. The purified gas outlet is located on the side wall of the top of the tower body and communicates with the demisting cavity inside. A liquid storage tank is arranged at the bottom of the tower body for collecting and recycling the spraying liquid. The bottom of the liquid storage tank is in a trapezoidal structure to facilitate the deposition of particles.

[0030] In the embodiment, the cyclone device is installed in the waste gas inlet cavity to preliminarily purify the waste gas entering the tower body. The cyclone device comprises a plurality of groups of circular cyclone barrels. Each group of cyclone barrels is coaxially connected through a tangential gas inlet to form a strong rotating gas flow. Each cyclone barrel is provided with helical guide vanes arranged in the radial direction inside. The inclination angle of the vanes ranges from 25° to 45°. In order to further improve the dust capture efficiency, the guide vanes are embedded with filler balls made of modified polypropylene. The surface of the filler balls is coated with a hydrophobic layer, which can effectively reduce the adhesion of viscous pollutants and improve the service life of the filler. The waste gas produces strong vortex motion in the cyclone barrel, and larger particles are separated due to the centrifugal force and enter the liquid storage tank below.

[0031] In the embodiment, after the waste gas passes through the cyclone device, it enters the multi-stage tower plate purification cavity. A plurality of vertically spaced annular tower plates are arranged in the cavity. Gas-liquid perforations are uniformly distributed on each tower plate to realize gas-liquid contact. The gas-liquid perforations are arranged in an up-and-down staggered manner to prolong the flow path of the waste gas and improve the gas-liquid exchange efficiency. The edges of each tower plate are designed with liquid guide grooves to guide the excess washing liquid to flow back to the bottom liquid storage tank, avoiding liquid retention. The atomization layer generated by the spiral nozzle of the spraying device fully covers the tower plate area, so that the particles in the waste gas fully contact with the spraying liquid, are captured and settled.

[0032] In this embodiment, the spraying device is arranged in the multi-stage tower plate purification cavity for generating a high-efficiency atomized liquid spraying layer. The spraying annular pipes are arranged along the circumference of the multi-layer tower plates, and each layer of tower plate corresponds to a spraying annular pipe. The annular pipe is fixed to the inner wall of the tower body through a clamping piece, which not only ensures stability but also facilitates maintenance. A plurality of spiral nozzles are connected to the annular pipe. The distribution mode of the nozzles ensures that the sprayed liquid can uniformly cover the entire tower plate area. Fine atomized droplet layer is formed through the nozzles, which further captures particulate matters and dissolves gaseous pollutants in the exhaust gas.

[0033] In this embodiment, after the exhaust gas passes through the multi-stage tower plate purification cavity, it enters the demisting cavity at the upper part of the tower body. A corrugated demisting plate is installed in the demisting cavity. The corrugated plate adopts a structure of alternating wave crests and troughs in multiple layers. Through multiple airflow deflections, the water mist carried in the exhaust gas is condensed into larger droplets. The condensed droplets flow along the surface of the corrugated plate to the edge of the plate body and are collected by the liquid collecting groove. The liquid collecting groove is connected with the corrugated plate, and the bottom of the groove is provided with a liquid discharge port. The discharged liquid is introduced into the liquid storage tank through a pipeline for recycling.

[0034] In this embodiment, the water circulation device is located at the bottom of the tower body and includes a liquid storage tank, a circulating water pump, and a multi-stage filtration unit. The inside of the liquid storage tank is designed in a trapezoidal structure, and the bottom is arranged obliquely to accelerate the return flow of the liquid and reduce the residence time. The sedimentation zone is used to collect particulate matters captured by the cyclone device and the spraying device. A sewage discharge port is arranged at the bottom to facilitate periodic discharge of sediments. The multi-stage filtration unit includes a primary coarse filter screen, a secondary fine filter layer, and a tertiary activated carbon adsorption unit, which can efficiently remove particulate matters and dissolved organic pollutants in the water, thereby ensuring the cleanliness of the spraying liquid. The filtered spraying liquid is sent to the spraying device again by the circulating water pump, realizing the recycling of the spraying liquid and reducing the operating cost.

[0035] In this embodiment, the exhaust gas enters the exhaust gas inlet cavity tangentially from the exhaust gas inlet. After preliminary particulate matter separation by the cyclone device, it enters the multi-stage tower plate purification cavity. In this cavity, the exhaust gas successively passes through multiple tower plates and fully contacts with the atomized liquid sprayed by the spraying device. Most of the particulate matters and soluble harmful components are removed at this stage. The exhaust gas continues to rise into the demisting cavity and is treated by the high-efficiency demisting device. The residual water mist and small particles are removed, and finally discharged from the purified gas outlet. Through the above design, the cyclone mixed waste gas dust purification tower of the present patent realizes efficient, energy-saving, and environmentally friendly waste gas treatment effect, and is particularly suitable for industrial waste gas purification needs.

[0036] Working principle of the present patent

[0037] The present patent provides a cyclone mixed waste gas dust purification tower. Its core is a comprehensive effect of cyclone separation, spraying purification, multi-layer tower plate gas-liquid contact, and high-efficiency demisting device, which can efficiently separate and purify dust particles, harmful components, and water mist in industrial waste gas. The specific working principle is as follows:

[0038] I. Preliminary cyclone separation of exhaust gas

[0039] 1. Tangential introduction of exhaust gas

[0040] Exhaust gas enters the exhaust gas inlet cavity in a tangential manner from the exhaust gas inlet, directly entering the cyclone barrel through the tangential inlet of the cyclone device. The tangential entry of the exhaust gas causes it to quickly form a high-speed rotating gas flow in the cyclone barrel, achieving preliminary separation by centrifugal force.

[0041] 2. Centrifugal action of the cyclone device

[0042] The exhaust gas forms a strong rotation in the cyclone barrel under the guidance of the spiral guide vanes. The centrifugal force throws the larger particles in the exhaust gas towards the barrel wall, and part of the dust separates from the exhaust gas and sinks along the barrel wall to the dust collection cavity, eventually entering the deposition area of the liquid storage tank.

[0043] 3. Strengthening collision and separation of packing balls

[0044] The packing balls inside the cyclone barrel rotate with the airflow and vanes, the high-speed movement of the packing balls increases the collision probability of the exhaust gas and particles, and at the same time reduces the residence time of the particles in the cyclone barrel, preventing accumulation and blockage. The hydrophobic surface of the packing balls further avoids the adhesion of sticky particles.

[0045] II. Gas-liquid washing by spraying device

[0046] 1. Atomization of spray liquid

[0047] The exhaust gas after preliminary separation flows upwards into the multi-stage tower plate purification cavity. The spraying device pumps the spray liquid from the liquid storage tank through the circulating water pump, and sprays it into the exhaust gas flow path in the form of high-efficiency atomization through the spiral nozzle, forming a fine atomization layer.

[0048] 2. Gas-liquid contact in the spraying process

[0049] The exhaust gas flows up and down in the multi-stage tower plate purification cavity, and when passing through multiple tower plates, it forms sufficient contact with the spray liquid. The atomized liquid captures fine particles and dissolves part of the harmful gas components in the exhaust gas during the flow process, and the generated droplets carry the pollutants back to the liquid guide groove and eventually enter the liquid storage tank.

[0050] 3. Recycling of spray liquid

[0051] The spray liquid is purified by the multi-stage filtration unit in the water circulation device and then reenters the spraying device for recycling, avoiding resource waste. The coarse filter screen in the filtration unit removes particulate impurities, the fine filter layer captures micro-suspended particles, and the activated carbon adsorption unit further adsorbs dissolved pollutants.

[0052] III. Multi-stage strengthening effect of tower plate purification

[0053] 1. Gas-liquid perforated design of multi-layer tray

[0054] The uniform distribution of gas-liquid perforation of the multi-layer tray allows the waste gas and the spray liquid to pass through each other, and due to the up-and-down staggered arrangement of the perforation, the waste gas flow path is effectively lengthened, increasing its residence time in the tower and improving the purification efficiency.

[0055] 2. Liquid backflow of liquid guide groove

[0056] The edge of the multi-layer tray is provided with a liquid guide groove for recycling the scrubbing liquid flowing down the gas-liquid perforation. After entering the liquid guide groove along the edge of the tray, the scrubbing liquid is directly backflowed to the liquid storage tank for recycling.

[0057] Four, water mist removal of high-efficiency demisting device

[0058] 1. Multiple turning of gas flow

[0059] After purification by the tray, the particulate matter in the waste gas has been mostly removed, but it may still contain residual water mist or small particles. After entering the demisting chamber, the waste gas flows through the corrugated demisting plate of the high-efficiency demisting device. The alternating arrangement of the peaks and valleys of the corrugated demisting plate causes the direction of the waste gas flow to change multiple times.

[0060] 2. Inertial collision and coagulation

[0061] The waste gas undergoes inertial collision on the surface of the corrugated demisting plate, and the water mist coagulates on the surface of the corrugated plate to form droplets. The droplets collect on the surface of the corrugated plate and slide down to the liquid collection groove. The liquid in the liquid collection groove is backflowed to the liquid storage tank through the backflow pipe, completing the recycling of the liquid.

[0062] 3. High-efficiency purification of gas

[0063] The waste gas after demisting has a significantly reduced water content and basically meets the industrial emission standards, and is finally discharged through the purified gas outlet.

[0064] Five, resource recovery and purification of water recycling device

[0065] 1. Filtration and purification of water recycling

[0066] The bottom of the liquid storage tank separates larger particles through a sedimentation zone, and the spray liquid containing small impurities is delivered by a circulating water pump to a multi-stage filtration unit for treatment. The filtration process consists of three steps: a primary coarse filter removes large particles, a secondary fine filter layer captures small suspended particles, and a third activated carbon adsorption unit adsorbs organic pollutants.

[0067] 2. Recycling of liquid

[0068] The purified spray liquid reenters the spray device to participate in the waste gas purification process, reducing water resource waste and lowering operating costs.

[0069] Six, multi-stage linkage effect of waste gas purification

[0070] Through the preliminary particle separation of the cyclone device, the atomization washing of the spraying device, the gas-liquid contact of the multi-layer tower plate, and the water mist removal of the high-efficiency demisting device, the functions of each module are coordinated and linked. The waste gas is treated in multiple stages in the entire purification tower, and the dust, particulate matter, harmful components and water mist are gradually removed, and the finally discharged gas meets the clean emission standard.

[0071] The working principle of the patent integrates multiple treatment technologies such as physical separation, gas-liquid washing and water mist condensation, uses centrifugal force, inertial collision, gas-liquid interaction and multi-stage filtration, etc. to achieve efficient and energy-saving waste gas dust purification effect, which is suitable for waste gas treatment needs in chemical, metallurgical, building material and other industrial fields.

[0072] The above specific embodiments are typical embodiments of the patent, but the patent is not limited thereto. Reasonable changes can be made to the structure, material and control logic without deviating from the core technical idea of the patent, and all improvements based thereon are within the scope of protection of the patent.

[0073] The specific embodiments of the patent are only illustrative and do not limit the scope of protection of the patent. Various changes and modifications can be made to the specific embodiments of the patent without departing from the spirit and essence of the patent, and these changes and modifications are within the scope of the patent.

[0074] It should be noted that in the description of the patent, the meaning of "multiple" is two or more, unless otherwise specifically limited. In the patent, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; the circuits described in the patent are commonly used circuits in the art, and other related components are commonly used components in the art. For those skilled in the art, the specific meaning of the above terms in the patent can be understood according to the specific situation.

[0075] For those skilled in the art, it is obvious that the patent is not limited to the details of the above exemplary embodiments, and the patent can be implemented in other specific forms without departing from the spirit or basic characteristics of the patent. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the patent is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the essential elements of the claims are intended to be included in the patent, and any reference signs in the claims should not be considered as limiting the claims.

Claims

1. A cyclone mixing waste gas dust purification tower, comprising a tower body, a cyclone device, a spraying device, a multi-layer tower plate, a filler ball, a water circulation device and a high-efficiency demisting device, characterized in that: the tower body is a vertical multi-cavity cylindrical structure, and the inside of the tower body is respectively provided with a waste gas inlet cavity, a multi-stage tower plate purification cavity and a demisting cavity in the vertical direction, and the outside of the tower body is provided with a waste gas inlet and a purified gas outlet; the cyclone device is installed in the waste gas inlet cavity and comprises a tangential gas inlet and multiple groups of circular cyclone barrels, the tangential gas inlet is coaxially connected with the inlet of the cyclone barrel, a spiral guide vane is arranged in each cyclone barrel in the radial direction, the vane is arranged in an inclined manner along the barrel wall, the inclination angle of the vane is 25° to 45°, a filler ball is arranged on the vane, and the filler ball rotates with the vane; the spraying device is arranged in the multi-stage tower plate purification cavity and comprises a spraying ring pipe, multiple spiral nozzles and a spraying liquid return pipeline, the spraying liquid is pumped from the water circulation device by a circulating water pump, and the nozzles form a high-efficiency atomization layer by spraying; the multi-layer tower plate is arranged in the multi-stage tower plate purification cavity and is composed of multiple vertically and spaced-apart annular tower plates, each tower plate is provided with uniformly distributed gas-liquid perforations, and the edge of the tower plate is provided with a liquid guide groove for guiding the washing liquid to return to the water circulation device; the high-efficiency demisting device is located in the demisting cavity and comprises a corrugated demisting plate and a liquid collecting tank, the corrugated demisting plate is a corrugated structure arranged in multiple layers from top to bottom, the wave crests and wave troughs of the corrugated plate are alternately arranged, the high-efficiency condensation of water mist in the gas is realized by forming multiple airflow deflections, the liquid collecting tank is arranged below the corrugated demisting plate and is connected with the edge of the corrugated plate for collecting the condensed liquid drops, and the bottom of the liquid collecting tank is provided with a liquid outlet connected to the water circulation device through a pipeline; the water circulation device is arranged at the bottom of the tower body and comprises a liquid storage tank, a circulating water pump and multiple-stage filtration units, the liquid storage tank is located at the bottom of the tower body and has a trapezoidal structure to facilitate particle deposition, the bottom is provided with a deposition area and a blowdown port, the circulating water pump is connected to the liquid storage tank and the spraying device through a return pipeline, and the multiple-stage filtration units are located between the return port of the liquid storage tank and the spraying liquid inlet and comprise a primary coarse filter screen, a secondary fine filter layer and a tertiary activated carbon adsorption unit for removing particulate matter and soluble organic pollutants. The filler ball is made of modified polypropylene and coated with a hydrophobic layer to reduce the adhesion of sticky pollutants and improve the service life of the filler ball. The gas-liquid perforations of each tower plate in the multi-layer tower plate are arranged in an up-and-down staggered manner to increase the flow path of the waste gas in the tower and improve the purification efficiency. The spraying ring pipe is arranged in a circumferential ring around the multi-layer tower plate, the spraying ring pipe of each tower plate is fixed to the inner wall of the tower body through a clamping piece, and the spraying ring pipe is provided with multiple spraying joints. The bottom of the liquid storage tank is arranged in an inclined manner to accelerate the return of the liquid and reduce the residence time. The waste gas inlet is located below the tangential direction of the waste gas inlet cavity and is connected with the cyclone device; and the purified gas outlet is located on the side of the demisting cavity. ​ 2. The cyclonic dust cleaning tower according to claim 1, wherein ​ 3. The cyclonic dust cleaning tower according to claim 1, wherein ​ 4. The cyclonic dust cleaning tower according to claim 1, wherein ​ 5. The cyclonic dust cleaning tower of claim 1, wherein ​ 6. The cyclonic dust cleaning tower of claim 1, wherein ​

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