CN110801678A - Dandelion-like self-dropping type filtering device for purifying heavily-polluted waste gas - Google Patents

Abstract

The invention discloses an imitation dandelion self-shedding filter device for purifying heavy polluted waste gas, belonging to the technical field of environmental protection, and can realize the self-shedding behavior of imitating the dandelion, unitize the existing filter screen, and deploy it in a distribution form similar to pilose At the same time, based on the excellent adsorption performance of activated carbon fiber material, it actively absorbs impurities and harmful substances contained in exhaust gas while filtering large-sized solid particles, and cooperates with subsequent fine filtration treatment to achieve non-stop and no speed reduction. At the same time, the method of wetting the liquid is used to improve the purification effect of the exhaust gas, and the appropriate liquid is selected according to the characteristics of the exhaust gas, which not only plays a role in cooling the exhaust gas, but also through the retention of the liquid itself and the harmful substances in the exhaust gas. The chemical reaction further increases the purification effect, and at the same time, the desorption treatment is carried out after falling off, which can be recycled and reused, which is in line with the environmental protection concept of sustainable development.

Description

A kind of dandelion-like self-shedding filter device for purification of heavily polluted waste gas

technical field

The invention relates to the technical field of environmental protection, and more particularly, to a dandelion-like self-dropping filter device for purification of heavily polluted waste gas.

Background technique

Exhaust gas purification mainly refers to the treatment of industrial waste gas such as dust particles, smoke and dust, odorous gases, and toxic and harmful gases generated in industrial places. Common waste gas purification includes factory dust and waste gas purification, workshop dust and waste gas purification, organic waste gas purification, waste gas odor purification, acid-base waste gas purification, chemical waste gas purification, etc.

The treatment of waste gas should be carried out from two aspects: one is the waste gas dust removal for suspended particulate pollutants; the other is the waste gas purification for gaseous pollutants. The control of gaseous pollutants mainly uses physicochemical properties, such as solubility, adsorption saturation, dew point and selective chemical properties. Differences in reactions, etc., to separate pollutants from exhaust gas; or to convert pollutants into harmless or easy-to-treat substances. The basic methods of exhaust gas purification include absorption method, adsorption method, condensation method, catalytic conversion method and combustion method.

Overview of Air Pollution Control Technology Air pollution control technology is an important countermeasure for atmospheric environmental protection. Clean combustion technology is a process, combustion, transformation and pollution emission control technology that reduces pollutant emissions and improves fuel utilization efficiency in the combustion process. In general, sulfur dioxide, nitrogen oxides and smoke (powder) dust are the main air pollutants in my country. Reducing the emission of sulfur dioxide, nitrogen oxides and smoke (powder) dust is not only very important for protecting and improving the atmospheric environment, but also very urgent. .

The pioneer treatment in waste purification is filtration. Therefore, the fineness of filtration often determines the quality and difficulty of subsequent treatment steps. For this reason, more and more filters have emerged to improve the filtration effect of exhaust gas, but it is important to It is more difficult and demanding to filter polluted waste gas. If it is filtered directly through a fine filter, although it has a better filtering effect, such as a bag filter commonly used in industrial waste gas purification, it is difficult to filter large particles of impurities and soot. The treatment effect is better, but it is mainly achieved through physical action, and the composition of the heavily polluted exhaust gas is complex and the temperature is high. Additional cooling treatment is required. On the other hand, a large number of solid particles and impurities will be adsorbed on the surface of the bag filter, affecting the passage rate of the exhaust gas, reducing the filtration effect, and requiring shutdown or other treatment methods to restore its filtration performance. This process often takes a lot of time and delays. The overall progress of exhaust gas purification, in addition, the filtration effect under physical action is general, and many other components such as toxic gases need to be treated separately by the subsequent treatment process, which increases the difficulty and time of subsequent treatment.

SUMMARY OF THE INVENTION

1. technical problem to be solved

In view of the problems existing in the prior art, the purpose of the present invention is to provide an imitation dandelion self-shedding filter device for the purification of heavy polluted waste gas, which can realize the self-shedding behavior of imitating the dandelion, unitize the existing filter screen, and The distribution form similar to pubescence is expanded to form a preliminary space filter. At the same time, based on the excellent adsorption performance of activated carbon fiber material, while filtering large-sized solid particles, it actively absorbs impurities and harmful substances contained in exhaust gas for subsequent exhaust gas purification. It reduces the difficulty of treatment, and at the same time, it plays a suspension role based on the magnetic connection. After the adsorption is saturated, the weight increases, and it will fall off after resisting the magnetic force. Speed reduction pre-filtering, and at the same time, wetting liquid is used to improve the purification effect of exhaust gas. Selecting suitable liquid according to the characteristics of exhaust gas not only plays a role in cooling the exhaust gas, but also through the retention effect of the liquid itself and is harmful to the exhaust gas. The chemical reaction of the substance further increases the purification effect, and at the same time, the desorption treatment is carried out after falling off, which is convenient for the recovery and centralized treatment of pollutants, and can be recycled and reused, which is in line with the environmental protection concept of sustainable development.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions.

An imitation dandelion self-dropping filter device for heavy pollution waste gas purification, comprising a filter box body, a plurality of air intake holes distributed in an annular array are drilled on the side wall of the filter box body, and a self-shedding filter box is installed in the filter box. The self-detaching filter assembly includes an adsorption base ring and a plurality of filter monomers, and the plurality of filter monomers are evenly distributed on the lower side of the adsorption base ring, and the inner side of the adsorption base ring is provided with a plurality of grids. Distributed magnet rings, the upper end of the magnet ring is fixedly connected with a liquid storage box, a connecting wire is fixedly connected between the adjacent liquid storage boxes, and the connecting wire on the outer side in the circumferential direction is fixedly connected with the inner end of the adsorption base ring, so The filter unit includes a magnetic suction root, a retention stem, and a diverging crown that are sequentially distributed up and down. The outer end of the diverging crown is fixedly connected with a plurality of evenly distributed filter fluff, and the diverging crown and the filter fluff are integrally formed. , the outer surface of the divergent crown is wrapped with an adsorption spherical shell, and the outer surface of the filter fluff is wrapped with an adsorption surface layer.

Further, a circulation cavity is excavated in the liquid storage box, and a flow channel that communicates with the circulation cavity is excavated at the inner end of the magnet ring. A booster pump is installed at one end of the liquid inlet pipe away from the liquid storage box, a drip hole is drilled at the lower end of the liquid storage box, and a liquid drop hole matching the magnetic suction root is drilled at the inner end of the retention stem. There is a spherical liquid storage cavity connected to the liquid hole at the end, and a plurality of evenly distributed liquid-conducting micro-holes are drilled on the diverging crown, which can realize the addition of suitable liquid from the outside according to the characteristics of heavily polluted exhaust gas, such as exhaust gas The content of sulfur dioxide in the medium is relatively high, and an appropriate amount of alkaline solution can be added to neutralize the sulfur dioxide in the exhaust gas and improve the purification effect of the exhaust gas.

Further, the inner diameter of the magnet ring is larger than the inner diameter of the magnetic root and smaller than the outer diameter of the magnetic root, the lower end of the magnet ring is fixedly connected with a deviation correction ring matching the magnetic root, and the inner diameter of the deviation correction ring is slightly larger than the magnetic root. The outer diameter of the root, the correction ring plays a role in guiding the magnetic suction of the magnetic suction root, preventing the phenomenon of serious misalignment between the magnetic suction root and the magnet ring, and thus causing the liquid to fail to flow from the magnet ring to the magnetic suction root to complete the subsequent wetting. Work.

Further, the magnetic suction root is made of ferromagnetic metal material, the lower end of the magnet ring is coated with a nano-waterproof layer, and the magnetic suction force of the magnet ring to the magnetic suction root is slightly greater than the gravity of the filter unit, which can ensure the magnet ring. In the normal state, the filter monomer will not fall off. On the one hand, the function of the nano waterproof layer can avoid the leakage of the liquid, and on the other hand, the surface tension of the liquid can be used to improve the adsorption force of the magnetic suction root.

Further, the outer end of the retention stem is drilled with a plurality of adsorption micropores, and the adsorption micropores are provided with a bentonite adsorption layer that fits together. Because the space between the retention stems is larger than the magnetic roots, After the exhaust gas passes through the space network structure formed by the magnetic suction root, due to the air pressure, it will expand and flow to the adsorption micropores. Therefore, the bentonite adsorption layer set can directly adsorb the solid particles of the leakage rate, improve the filtering effect, and prolong the retention of exhaust gas at the same time. time, so that the adsorption of the filter fluff can be more sufficient.

Further, the retention stem, the diverging crown and the filter fluff are all made of light plastic, and the adsorption spherical shell and the adsorption surface layer are all made of activated carbon fiber material, the diameter of the activated carbon fiber is 5-20 μm, and the specific surface area is 5-20 μm. It is 1000-1500m2/g, and the average pore size is 1.0-4.0nm. The activated carbon fiber has a larger adsorption capacity and faster adsorption kinetics than granular activated carbon. High, fast absorption and desorption speed, recyclable, acid and alkali resistance, high temperature resistance, strong adaptability, good electrical conductivity and chemical stability, is an ideal environmental protection material.

Further, the ratio of the radius of the divergent crown to the length of the filter fluff is 1:2-8, and sufficient adsorption space is reserved for the filter fluff, which improves the filtration efficiency and quality while improving the exhaust gas passing rate, and avoids the divergent crown. Take up too much space to block the passage of exhaust gas.

Further, the shortest distance between an adjacent pair of the filter monomers is exactly twice the length of the filter fluff, which can make the filter fluff form a full, tight and void-free space filter screen, improve the filtering effect, and be less prone to filter dead ends. .

Further, a recovery platform is arranged on the lower side of the adsorption base ring, an electromagnet is installed in the recovery platform, and a pair of vertical and symmetrically distributed lifting grooves are excavated on the inner side wall of the filter box. An electric sliding table is installed, and the electric sliding block on the electric sliding table is fixedly connected with the recovery platform, which can collect the filter unit after falling off for centralized desorption treatment, and directly send it to the adsorption base ring after the treatment is completed. On the side, the magnetic attraction is used to automatically absorb the installation to complete the reset, and then recycle and continue to filter.

Further, the number of the self-dropping filter assemblies can be multiple, and the size of the filter cells of different self-dropping filter assemblies is kept different, and the size gradually increases from top to bottom. The actual situation of the exhaust gas selects the appropriate number of self-dropping filter components. In theory, the more the filtering effect, the better the filtering effect, but the filtering speed has decreased, and should be adjusted reasonably according to the actual situation.

3. beneficial effect

Compared with the prior art, the advantages of the present invention are:

(1) This scheme can imitate the self-shedding behavior of dandelion, unitize the existing filter, and expand it in a distribution form similar to pilose to form a preliminary spatial filter. At the same time, based on the excellent adsorption performance of activated carbon fiber While filtering large-sized solid particles, it actively adsorbs impurities and harmful substances contained in the exhaust gas, reducing the difficulty of treatment for subsequent exhaust gas purification. At the same time, it plays a suspension role based on the magnetic connection. After the adsorption is saturated, the weight increases. After resisting the magnetic force, the shedding behavior will occur, and the flow of exhaust gas will no longer be blocked. With the follow-up fine filtration treatment, the pre-filtration can be realized without stopping the machine and reducing the speed. At the same time, the method of wetting the liquid is used to improve the purification effect of the exhaust gas. The liquid not only cools the exhaust gas, but also further increases the purification effect through the retention of the liquid itself and the chemical reaction of harmful substances in the exhaust gas. , and can be recycled and reused, which is in line with the environmental protection concept of sustainable development.

(2) A circulation cavity is excavated in the liquid storage box, and a flow channel that communicates with the circulation cavity is excavated at the inner end of the magnet ring. A liquid inlet pipe is fixedly connected to the upper end of one of the liquid storage boxes, and the liquid inlet pipe is away from the end of the liquid storage box. A booster pump is installed, a drip hole is drilled at the lower end of the liquid storage box, a liquid drop hole matching the magnetic suction root is drilled at the inner end of the retention stem, and a spherical liquid storage cavity that communicates with the drop hole is drilled at the inner end of the diverging crown. , There are a number of evenly distributed liquid-conducting micro-holes drilled on the diverging crown, which can add appropriate liquid from the outside according to the characteristics of heavily polluted exhaust gas. For example, the sulfur dioxide content in the exhaust gas is high, and an appropriate amount of alkaline solution can be added to It neutralizes the sulfur dioxide in the exhaust gas and improves the purification effect of the exhaust gas. At the same time, the liquid itself has a certain cooling effect and retention effect on the smoke and dust, which improves the filtering effect of the exhaust gas.

(3) The inner diameter of the magnet ring is larger than the inner diameter of the magnetic root and smaller than the outer diameter of the magnetic root. The lower end of the magnet ring is fixedly connected with a correction ring matching the magnetic root, and the inner diameter of the correction ring is slightly larger than the outer diameter of the magnetic root. , the deviation correction ring plays a role in guiding the magnetic suction of the magnetic suction root, preventing the phenomenon of serious misalignment between the magnetic suction root and the magnet ring, and then the liquid cannot flow from the magnet circulation to the magnetic suction root to complete the subsequent wetting work.

(4) The magnetic suction root is made of ferromagnetic metal material, the lower end of the magnet ring is coated with a nano waterproof layer, and the magnetic suction force of the magnet ring to the magnetic suction root is slightly greater than the gravity of the filter unit, which can ensure that the magnet ring is adsorbed in a normal state Keep the filter monomer from falling off. On the one hand, the role of the nano-waterproof layer can avoid the leakage of the liquid, and on the other hand, the surface tension of the liquid can be used to improve the adsorption force of the magnetic root.

(5) A plurality of adsorption micropores are drilled at the outer end of the retention stem, and a bentonite adsorption layer is arranged in the adsorption micropore. Since the space between the retention stems is larger than that between the magnetic roots, the exhaust gas passes through the magnetic adsorption. After the space network structure formed by the root is sucked, due to the air pressure, the phenomenon of expansion and flow to the adsorption pores will occur. Therefore, the bentonite adsorption layer set can directly absorb the solid particles of the leakage rate, improve the filtration effect, and prolong the residence time of the exhaust gas, so that the filtration The adsorption of fluff can be more sufficient.

(6) The retention stem, divergent crown and filter fluff are all made of lightweight plastic, and the adsorption spherical shell and adsorption surface are made of activated carbon fiber material. The diameter of the activated carbon fiber is 5-20 μm, and the specific surface area is 1000-1500m2/g , the average pore size is 1.0-4.0nm, activated carbon fiber has larger adsorption capacity and faster adsorption kinetics than granular activated carbon, high adsorption efficiency for organic matter and anion and cation in liquid and gas phase, adsorption, desorption It has high speed, can be regenerated and recycled, and is resistant to acid, alkali, high temperature, strong adaptability, good electrical conductivity and chemical stability. It is an ideal environmental protection material.

(7) The ratio of the radius of the divergent crown to the length of the filter fluff is 1:2-8, and sufficient adsorption space is reserved for the filter fluff, which improves the filtration efficiency and quality while improving the exhaust gas passing rate, and avoids the divergent crown occupying too much. Multiple spaces block the passage of exhaust gas.

(8) The shortest distance between the adjacent pair of filter monomers is exactly twice the length of the filter fluff, which can make the filter fluff form a full, tight and void-free space filter screen, improve the filtering effect, and be less prone to filter dead corners.

(9) There is a recovery platform on the lower side of the adsorption base ring, an electromagnet is installed in the recovery platform, a pair of vertical and symmetrically distributed lifting grooves are excavated on the inner side wall of the filter box, and an electric sliding table is installed in the lifting groove. The electric slider on the table is fixedly connected with the recovery platform, which can collect the detached filter monomer for centralized desorption treatment, and at the same time, after the treatment is completed, it is directly sent to the lower side of the adsorption base ring, and the automatic adsorption and installation are completed by the magnetic attraction. Reset, recycle and continue filtering.

(10) The number of self-dropping filter components can be multiple. The size of the filter unit of different self-dropping filter components remains different, and the size gradually increases from top to bottom. The technician can according to the actual situation of the waste gas to be filtered on site Select the appropriate number of self-detaching filter components. In theory, the more the filtering effect, the better the filtering effect, but the filtering speed is reduced, and reasonable adjustments should be made according to the actual situation.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation under the filtering state of filter monomer part of the present invention;

Fig. 3 is the top view of the adsorption base ring part of the present invention;

Fig. 4 is the internal structure schematic diagram of the filter monomer part of the present invention;

FIG. 5 is a schematic diagram of the structure of the filter fluff of the present invention.

Description of the labels in the figure:

1 filter box, 2 adsorption base ring, 3 filter unit, 31 magnetic suction root, 32 retention stem, 33 divergent crown, 34 filter fluff, 4 recovery platform, 5 electromagnet, 6 electric sliding table, 7 liquid inlet Tube, 8 booster pump, 9 magnet ring, 10 liquid storage box, 11 connecting wire, 12 adsorption micropore, 13 adsorption spherical shell, 14 adsorption surface layer, 15 deviation correction ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as " Connection", which can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1:

Please refer to Figure 1-3, a dandelion-like self-falling filter device for heavy pollution exhaust gas purification, including a filter box 1, a plurality of air intake holes distributed in an annular array are drilled on the side wall of the filter box 1, and the filter box The body 1 is equipped with a self-dropping filter assembly, the self-dropping filter assembly includes an adsorption base ring 2 and a plurality of filter units 3, and the plurality of filter units 3 are evenly distributed on the lower side of the adsorption base ring 2, and the adsorption base ring 2 The inner side is provided with a plurality of magnet rings 9 distributed in a grid. The upper end of the magnet ring 9 is fixedly connected with a liquid storage box 10, and a connecting wire 11 is fixedly connected between the adjacent liquid storage boxes 10, and the connecting wire 11 on the outer side in the circumferential direction is fixed. It is fixedly connected with the inner end of the adsorption base ring 2, and the filter unit 3 includes a magnetic suction root 31, a retention stem 32, and a diverging crown 33 that are sequentially distributed up and down. The outer end of the diverging crown 33 is fixedly connected with a plurality of uniformly distributed filter fluff. 34, and the divergent crown 33 and the filter fluff 34 are integrally formed, and the filter fluff 34 plays a role in setting the shape to avoid the phenomenon of deformed pores caused by airflow impact caused by flexibility, and the outer surface of the divergent crown 33 is wrapped with an adsorption spherical shell 13, The outer surface of the filter fluff 34 is wrapped with the adsorption surface layer 14 .

The shortest distance between the adjacent pair of filter units 3 is exactly twice the length of the filter fluff 34, which can make the filter fluff 34 form a full, tight and void-free space filter screen, improve the filtering effect, and be less prone to filter dead corners.

The inner diameter of the magnet ring 9 is larger than the inner diameter of the magnetic suction root 31 and smaller than the outer diameter of the magnetic suction root 31. The lower end of the magnet ring 9 is fixedly connected with a deviation correction ring 15 that matches the magnetic suction root 31, and the inner diameter of the deviation correction ring 15 is slightly larger than that of the magnetic suction root. The outer diameter of the root portion 31, the deflection correction ring 15 plays a role in guiding the magnetic attraction of the magnetic attraction root portion 31, preventing the phenomenon of serious misalignment between the magnetic attraction root portion 31 and the magnet ring 9, and then the liquid cannot flow from the magnet ring 9 to the magnetic attraction. The subsequent wetting work is completed in the root portion 31. The magnetic suction root portion 31 is made of ferromagnetic metal material. The lower end of the magnet ring 9 is coated with a nano waterproof layer, and the magnetic attraction force of the magnet ring 9 to the magnetic suction root portion 31 is slightly greater than that of the filter unit. The gravity of 3 can ensure that the magnet ring 9 adsorbs the filter unit 3 in a normal state and will not fall off. On the one hand, the role of the nano waterproof layer can avoid the leakage of the liquid, and on the other hand, the surface tension of the liquid can be used to improve the magnetic suction root 31. The outer end of the retention stem 32 is drilled with a plurality of adsorption micropores 12, and a bentonite adsorption layer is arranged in the adsorption micropore 12. Since the retention stem 32 is relatively smaller than the space between the magnetic roots 31 Due to the air pressure, the exhaust gas will expand and flow to the adsorption micropores 12 after passing through the spatial network structure formed by the magnetic suction root 31. Therefore, the bentonite adsorption layer set can directly adsorb the solid particles with the leakage rate, improve the filtering effect, and at the same time Extend the retention time of the exhaust gas, so that the adsorption of the filter fluff 34 can be more sufficient, the retention stem 32, the diverging crown 33 and the filter fluff 34 are all made of light plastic, and the adsorption spherical shell 13 and the adsorption surface layer 14 are made of activated carbon fiber material , the diameter of activated carbon fiber is 5-20μm, the specific surface area is 1000-1500m2/g, and the average pore size is 1.0-4.0nm. The activated carbon fiber has a larger adsorption capacity and faster adsorption kinetics than granular activated carbon. In the phase and gas phase, the adsorption efficiency of organic matter and anion and cation is high, the adsorption and desorption speed is fast, it can be recycled and used, and it is resistant to acid, alkali, high temperature, strong adaptability, good electrical conductivity and chemical stability. Ideal environmental protection material, the ratio of the radius of the diverging crown 33 to the length of the filter fluff 34 is 1:2-8, and sufficient adsorption space is reserved for the filter fluff 34 to improve the filtration efficiency and quality while improving the exhaust gas passing rate, avoiding The diverging crown 33 takes up too much space to block the passage of exhaust gases.

Please refer to FIG. 4 , a circulation cavity is excavated in the liquid storage box 10 , and a flow channel connected with the circulation cavity is excavated at the inner end of the magnet ring 9 . A booster pump 8 is installed at one end of the tube 7 away from the liquid storage box 10, a drip hole is drilled at the lower end of the liquid storage box 10, a liquid-adhering hole matching the magnetic suction root 31 is drilled at the inner end of the retention stem 32, and the diverging crown 33 The inner end is drilled with a spherical liquid storage cavity that communicates with the liquid hole, and a plurality of evenly distributed liquid-conducting micro-holes are drilled on the diverging crown 33, which can realize the addition of suitable liquid from the outside according to the characteristics of heavily polluted waste gas, such as waste gas The content of sulfur dioxide in the medium is relatively high, and an appropriate amount of alkaline solution can be added to neutralize the sulfur dioxide in the exhaust gas and improve the purification effect of the exhaust gas.

Please continue to refer to FIG. 1, a recovery platform 4 is arranged on the lower side of the adsorption base ring 2, an electromagnet 5 is installed in the recovery platform 4, and a pair of vertical and symmetrically distributed lifting grooves are excavated on the inner side wall of the filter box 1. An electric sliding table 6 is installed, and the electric sliding block on the electric sliding table 6 is fixedly connected with the recovery platform 4. The filter unit 3 after falling off can be collected for centralized desorption treatment, and at the same time, it is directly sent to the adsorption base after the treatment is completed. On the lower side of the ring 2, the magnetic attraction is used to automatically absorb and install to complete the reset, and it is recycled to continue filtering. The number of self-dropping filter components can be multiple. The size from top to bottom gradually increases, and the technician can choose the appropriate number of self-detaching filter components according to the actual situation of the exhaust gas to be filtered on site. In theory, the more filtering effect, the better the filtering effect, but the filtering speed is decreased, so it should be reasonable according to the actual situation. Adjustment.

It is worth noting that the specific size of the filter unit 3 should be determined according to the actual exhaust gas pollution degree and filtration requirements, which is not limited in this embodiment. At the same time, those skilled in the art should know that the present invention is in the case of low filtration requirements. It can be directly used for filtration. In the case of high-precision filtration requirements, an existing fine filter should be installed above the self-detaching filter assembly, which can significantly reduce the filtration pressure of the fine filter and the difficulty of subsequent purification.

The invention can realize the self-shedding behavior of imitating the dandelion, unitize the existing filter net, and expand it in a distribution form similar to pilose to form a preliminary space filter net. At the same time, it actively adsorbs the impurities and harmful substances contained in the exhaust gas, which reduces the processing difficulty for the subsequent exhaust gas purification. At the same time, it plays a suspension role based on the magnetic connection. After the adsorption is saturated, the weight increases and resists the magnetic force. It produces shedding behavior, no longer blocks the flow of exhaust gas, and cooperates with subsequent fine filtration treatment to achieve pre-filtration without stopping and slowing down. At the same time, the method of wetting liquid is used to improve the purification effect of exhaust gas. It not only cools the exhaust gas, but also further increases the purification effect through the retention of the liquid itself and the chemical reaction of harmful substances in the exhaust gas. Recycling is in line with the environmental protection concept of sustainable development.

The above description is only a preferred embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical scope of the present invention, according to the technical solution of the present invention and its improvement concept, equivalently replaces or changes, should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a heavily pollute exhaust purification with imitative dandelion from dropping formula filter equipment, includes filter box (1), its characterized in that: the filter box body (1) is provided with a plurality of air inlets distributed in an annular array, the filter box body (1) is internally provided with a self-dropping filter assembly, the self-dropping filter assembly comprises an adsorption base ring (2) and a plurality of filter monomers (3), the filter monomers (3) are uniformly distributed at the lower side of the adsorption base ring (2), the inner side of the adsorption base ring (2) is provided with a plurality of magnet rings (9) distributed in a grid manner, the upper end of each magnet ring (9) is fixedly connected with a liquid storage box (10), a connecting wire (11) is fixedly connected between the adjacent liquid storage boxes (10), the connecting wire (11) at the outer side in the circumferential direction is fixedly connected with the inner end of the adsorption base ring (2), the filter monomers (3) comprise a magnetic attraction root (31), a detention stem part (32) and a diffusion crown part (33) which are sequentially distributed from top to bottom, the diffusion crown part (33) is fixedly connected with a plurality of uniformly distributed filter fluff, and the divergent crown part (33) and the filtering fluff (34) are integrally formed, the outer surface of the divergent crown part (33) is wrapped with the adsorption spherical shell (13), and the outer surface of the filtering fluff (34) is wrapped with the adsorption surface layer (14).

2. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: offer the chisel in stock solution box (10) and have the circulation cavity, magnet ring (9) inner is offered the chisel and is had the runner that is linked together with the circulation cavity, one of them stock solution box (10) upper end is fixed the intercommunication has feed liquor pipe (7), feed liquor pipe (7) are kept away from stock solution box (10) one end and are installed booster pump (8), the chisel has the drip hole stock solution box (10) lower extreme, it has in the same direction as the liquid hole with magnetism absorption root (31) assorted to be offered the chisel in stem (32) inner, it has the spherical stock solution chamber that is linked together with in the same direction as the liquid hole to offer the chisel in diverging crown (33) inner, it has a plurality of evenly distributed's the liquid micropore of leading to offer the chisel on crown (33).

3. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the internal diameter that the internal diameter of magnet ring (9) is greater than magnetism and inhales root (31) is less than the external diameter of magnetism and inhales root (31), magnet ring (9) lower extreme fixedly connected with and magnetism inhale root (31) assorted correction ring (15), and the internal diameter of correction ring (15) slightly is greater than the external diameter of magnetism and inhales root (31).

4. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the magnetic attraction root (31) is made of ferromagnetic metal materials, a nanometer waterproof layer is coated at the lower end of the magnet ring (9), and the magnetic attraction force of the magnet ring (9) on the magnetic attraction root (31) is slightly larger than the gravity of the filtering monomer (3).

5. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the outer end of the retention stem part (32) is provided with a plurality of adsorption micropores (12), and bentonite adsorption layers attached to each other are arranged in the adsorption micropores (12).

6. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the retention stem part (32), the divergent crown part (33) and the filtration fluff (34) are all made of light plastics, the adsorption spherical shell (13) and the adsorption surface layer (14) are all made of activated carbon fiber materials, the diameter of the activated carbon fiber is 5-20 mu m, the specific surface area is 1000-1500m2/g, and the average pore diameter is 1.0-4.0 nm.

7. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the ratio of the radius of the divergent crown (33) to the length of the filtering fluff (34) is 1: 2-8.

8. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the shortest distance between the adjacent pair of the filtering single bodies (3) is just twice of the length of the filtering fluff (34).

9. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: adsorb base ring (2) downside and be equipped with recovery platform (4), install electro-magnet (5) in recovery platform (4), it has the lift groove of a pair of vertical and symmetric distribution to cut on filter box (1) inside wall, install electronic slip table (6) in the lift groove, fixed connection between electronic slider on electronic slip table (6) and recovery platform (4).

10. The dandelion-like self-falling type filtering device for purifying the heavily polluted waste gas as claimed in claim 1, which is characterized in that: the number of the self-dropping type filtering components can be multiple, different sizes of the filtering monomers (3) of the self-dropping type filtering components are different, and the sizes of the filtering monomers are gradually increased from top to bottom.

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