CN111167249A - Charged micro-mist cyclone dust removal system and method for fine particles - Google Patents
Charged micro-mist cyclone dust removal system and method for fine particles Download PDFInfo
- Publication number
- CN111167249A CN111167249A CN202010045798.7A CN202010045798A CN111167249A CN 111167249 A CN111167249 A CN 111167249A CN 202010045798 A CN202010045798 A CN 202010045798A CN 111167249 A CN111167249 A CN 111167249A
- Authority
- CN
- China
- Prior art keywords
- atomizing nozzle
- micro
- mist
- dust removal
- exhaust funnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
Abstract
A charged micro-mist cyclone dust removal system for fine particles and a dust removal method thereof belong to the field of dust removal operation. The system comprises a micro-fog system gas circuit, a micro-fog system water circuit, a charge generation system, an atomizing nozzle, an annular electrode, an exhaust funnel, a hydraulic subsystem and a cyclone separation subsystem; the outlet of the micro-fog system gas path and the outlet of the micro-fog system water path are both communicated with the atomizing nozzle; the atomizing nozzle is characterized in that an annular electrode is arranged below the atomizing nozzle and connected with a charge generation system, the atomizing nozzle and the annular electrode are both arranged in the exhaust funnel, the exhaust funnel is provided with an exhaust funnel slide way, an atomizing nozzle slide block is arranged and connected on the atomizing nozzle and matched with the exhaust funnel slide way, a cyclone separation subsystem is connected below the exhaust funnel, and the atomizing nozzle is connected with a hydraulic subsystem. The system effectively solves the problems of low dust removal rate of fine particle dust and large water consumption for wet dust removal in the existing cyclone dust removal, and improves the dust removal rate of the fine particle dust below 2.5 mu m.
Description
Technical Field
The invention belongs to the technical field of dust removal operation, and further relates to a dust remover, in particular to a charged micro-mist cyclone dust removal system for fine particles and a dust removal method thereof.
Background
In recent years, fine particle pollution has become a prominent problem of atmospheric environmental pollution, and the main sources of fine particle dust are coal mines, non-coal mines, coal-fired power plants, motor vehicle exhaust emission and the like. Epidemiological studies have shown that particles with a particle size above 10 microns are usually deposited in the upper respiratory tract; the particles with the particle size of 2.5-10 microns can enter a respiratory tract, but part of the particles can be discharged out of the body through sputum and the like, and in addition, the particles can be blocked by villi in the nasal cavity, so that the harm to the health of a human body is relatively small; the fine particles with the particle size of less than 2.5 microns have the diameter equal to 1/10 of the size of human hair, are not easy to block, and can directly enter bronchus after being inhaled into a human body to interfere the gas exchange of the lung, thereby causing diseases in aspects of asthma, bronchitis, cardiovascular diseases and the like.
In the field of coal mine production, fine particle pollution has attracted sufficient attention from managers, and treatment work for fine particles is actively being carried out. At present, aiming at fine particle pollution, the dust removal technologies commonly adopted in coal mines comprise mechanical dust removal, wet dust removal, electric dust removal, filter dust removal, cyclone dust removal and the like, but the dust removal rate of the existing dust removal technology to fine particle dust below 2.5 microns is low due to the fact that the characteristic parameters of particles such as size, density, shape, cohesiveness, brittleness, corrosivity, surface charge amount and the like are greatly changed.
Disclosure of Invention
The invention discloses a charged micro-mist cyclone dust removal system for fine particles and a dust removal method thereof, and the dust removal system can effectively overcome the defects of low dust removal rate of fine particle dust, large water consumption for wet dust removal and the like in the existing cyclone dust removal. The invention can ensure that charged micro-mist particles are in micron order of magnitude, droplets of the charged micro-mist are mutually exclusive and do not agglomerate before dust is not contacted in the operation process, and the generated charged micro-mist particles can be effectively captured after being contacted with fine particles, and the dust removal rate of the fine particle dust with the particle size of less than 2.5 mu m is improved by matching with a subsequent cyclone system.
In order to solve the problems, the technical scheme of the invention is as follows:
the invention relates to a charged micro-mist cyclone dust removal system for fine particles, which comprises a charged micro-mist subsystem and a dust removal device;
the charged micro-fog subsystem comprises a micro-fog system gas circuit, a micro-fog system water circuit, a charged generation system, an atomizing nozzle, an annular electrode and an exhaust funnel;
the outlet of the micro-fog system gas path and the outlet of the micro-fog system water path are both communicated with the atomizing nozzle; the atomizing nozzle is characterized in that an annular electrode is arranged below the atomizing nozzle, the annular electrode is connected with a charge generation system, the atomizing nozzle and the annular electrode are both arranged in the exhaust funnel, the exhaust funnel is provided with an exhaust funnel slide way, an atomizing nozzle slide block is arranged and connected on the atomizing nozzle, the atomizing nozzle slide block is matched with the exhaust funnel slide way and used for adjusting the distance between the atomizing nozzle and the annular electrode and the upper position and the lower position of the atomizing nozzle and the annular electrode, and a dust removal device is connected below the exhaust funnel.
Furthermore, the air path of the micro-fog system comprises a screw air compressor, an air storage tank and an air pressure gauge; the screw air compressor is connected with one end of an air storage tank, the other end of the air storage tank is connected with an air pressure gauge, and the output end of the air pressure gauge is used as the outlet of an air path of the micro-mist system.
The air inlet of the screw air compressor is sequentially connected with the T-level filter and the C-level filter in series; the C-grade filter is used for removing liquid with the particle size of more than 1 micron and solid particles with the particle size of more than 3 microns in the air; the T-stage filter is used for filtering liquid with the particle size of 1 micron and solid particles with the particle size of 3 microns, and further improves the air quality.
Furthermore, the micro-fog system water path comprises a water tank, a water level detector, a butterfly valve, a booster water pump, a check valve, an adjusting valve, a pressure stabilizing compensator and a water pressure meter, wherein the water level detector is arranged on the water tank, the butterfly valve, the booster water pump, the check valve, the adjusting valve and the pressure stabilizing compensator are sequentially arranged in the direction of a pipeline communicated with the water tank and the water pressure meter, the output end of the water pressure meter is used as the outlet of the micro-fog system water path, and the adjusting valve can be selectively installed according to the requirement on flow adjustment.
Furthermore, the outlet of the micro-fog system air passage and the outlet of the micro-fog system water passage are combined into one path through a hose before being communicated with the atomizing nozzle, and then are communicated with the atomizing nozzle.
Further, the charge generation system comprises a voltage regulating valve, a high-voltage static generator, a voltmeter and an ammeter; one end of the annular electrode penetrates through the exhaust funnel slide way to be grounded, the other end of the annular electrode penetrates through the exhaust funnel slide way through a high-voltage output cable to be connected with a high-voltage static generator, the high-voltage output cable is prevented from being exposed outside, a current meter and a voltage meter are arranged on the high-voltage output cable, and the high-voltage static generator is connected with a voltage regulating valve.
Furthermore, the vertical distance between the annular electrode and the atomizing nozzle is adjustable, and the adjustable range is 10-100 mm.
Furthermore, the atomizer slider and the atomizer can both pass through the ring electrode and move downwards.
Furthermore, the voltage adjustable range of the high-voltage electrostatic generator is 10-60 KV.
The charged fine-particle micro-fog cyclone dust removal system further comprises a power system for pushing the atomizing nozzle, and the atomizing nozzle is connected with the power system for pushing the atomizing nozzle.
The power system for pushing the atomizing nozzle can be a hydraulic subsystem which mainly comprises a hydraulic pump, an oil tank, an oil filter, a flow valve, a reversing valve, a hydraulic cylinder and an overflow valve; a piston is arranged in the hydraulic cylinder, a rodless cavity is arranged on one side of the piston, and a rod cavity is arranged on the other side of the piston;
the oil inlet end of the hydraulic pump is connected with the oil outlet of the oil tank, the oil outlet end of the hydraulic pump is connected with the flow valve, the front end of the hydraulic pump is provided with an oil filter, the flow valve is connected with a reversing valve, the reversing valve is a four-way valve, one passage is connected with an oil return port of the oil tank, meanwhile, two passages of the reversing valve are respectively connected with a rod cavity and a rodless cavity on two sides of a piston in the hydraulic cylinder, and all devices are connected through pipelines; one end of a branch pipeline with an overflow valve is connected to the pipeline of the inlet of the flow valve, and the other end of the branch pipeline of the overflow valve is communicated with an oil return port of the oil tank;
furthermore, the atomizing nozzle is connected with a piston rod in the hydraulic cylinder.
In the charged fine particle mist cyclone dust removal system, the dust removal device can be a cyclone separation subsystem; the cyclone separation subsystem comprises a cyclone separator cylinder, a cone and a dust collection box, wherein a cyclone separator inlet is formed in the upper end of the cyclone separator cylinder, the upper part of the cyclone separator cylinder is hermetically connected with an exhaust funnel in the charged micro-mist subsystem, the exhaust funnel extends to the upper part of the cyclone separator cylinder, an atomizing nozzle in the exhaust funnel can slide to the upper part of the cyclone separator cylinder, the outlet of the cyclone separator cylinder is connected with the cone, and the dust collection box is arranged below the cone.
The dust collecting box is also externally connected with a discharger, and when the dust stored in the dust collecting box reaches the capacity of the dust collecting box, the dust is automatically discharged by the discharger.
The cyclone separation subsystem is internally coated with a high-voltage electric insulating material protective layer, and the high-voltage electric insulating material protective layer is preferably low-density polyethylene.
A dust removal method of a charged fine mist cyclone dust removal system for fine particles adopts the charged fine mist cyclone dust removal system for the fine particles, and comprises the following steps:
(1) the flow of the micro-mist system gas circuit and the micro-mist system water circuit is adjusted, the pressure of gas and liquid is adjusted, and atomized particles with different particle sizes are provided;
(2) the voltage of the annular electrode is adjusted by adjusting the voltage of the high-voltage electrostatic generator, and after atomized particles with different particle sizes pass through the annular electrode, a spherical electric field of charged micro-atomized particles with different particle sizes is formed;
(3) the dust-containing airflow enters the cyclone separator with the inner surface washed through the inlet of the cyclone separator, and under the centrifugal force action of the cyclone separator, the coarse particles enter the cone along the cylinder wall of the cyclone separator and are settled in the dust collection box; the fine particles rise to the exhaust funnel through the inner vortex, are in the surrounding of the atomizing nozzle and the annular electrode in the charged micro-mist subsystem, are adsorbed and captured when contacting with spherical electric fields of charged micro-mist particles with different particle sizes, are mutually adsorbed under the electrostatic action, are subjected to condensation, and then are settled.
In the step (1), when the charged micro-mist cyclone dust removal system for fine particles washes the inner surface of the cyclone separator, a power system for pushing the atomizing nozzle needs to be started, the power system for pushing the atomizing nozzle drives the atomizing nozzle to move downwards first, the atomizing nozzle passes through the annular electrode and then washes the inner surface of the cyclone separator, and after washing is completed, the power system for pushing the atomizing nozzle drives the atomizing nozzle to move upwards.
In the step (1), when the power system for pushing the atomizing nozzle is a hydraulic subsystem, the working process is as follows: starting a hydraulic pump, pumping oil in an oil tank by the hydraulic pump, and outputting pressure oil through an oil filter;
after the pressure oil is subjected to oil flow regulation through a pipeline provided with a flow valve, the pressure oil is directly conveyed to the hydraulic cylinder through a reversing valve, and the linear motion of a piston in the hydraulic cylinder is realized; the passage of the reversing valve is opened or closed, the flow is regulated by matching with the flow valve, the input and the output of pressure oil are realized, and the reversing and the cutting of hydraulic oil are realized, so that the piston in the hydraulic cylinder realizes reciprocating motion to drive the atomizing nozzle to move up and down;
after a piston rod in the hydraulic cylinder reciprocates, the vertical distance and the up-down position of an atomizing nozzle and an annular electrode which are connected with the piston rod are adjusted;
when the hydraulic subsystem is overloaded, the overflow valve returns excessive pressure oil to the oil tank, so that overload protection on the hydraulic subsystem is realized; when the hydraulic subsystem works normally, the overflow valve is closed, and only when the load exceeds the limit specified by the hydraulic subsystem, the overflow valve is opened for overload protection, so that the pressure of the hydraulic subsystem is not increased any more.
The flow valve controls the pressure and the flow of the hydraulic subsystem by utilizing the throttling action of the same flow section.
In the step (1), the atomized particles with different particle sizes are micron-sized atomized particles.
In the step (1), when the inner surface of the cyclone separator needs to be sprayed, the atomizing nozzle moves up and down through the reciprocating motion of the piston rod, so that the inner surface of the cyclone separator is sprayed.
In the step (3), the coarse particles are particles with the particle size of more than 15 microns.
The invention relates to a charged micro-mist cyclone dust removal system for fine particles and a dust removal method thereof, wherein the dust removal principle of the dust removal system is as follows: the unsmooth internal surface of the cyclone separators used in the prior art results in a strong tendency for the dusty gas to leave the wall and flow radially, forming a stagnant zone, affecting the separation efficiency. In order to avoid the phenomenon, the charged micro-mist cyclone dust removal system for the fine particles is provided with the charged micro-mist subsystem, and before the cyclone separator runs, the charged micro-mist subsystem washes the inner surface of the cyclone separator, so that a retention area is avoided, the separation efficiency is improved, and the problems that the dust removal efficiency of the existing dust removal mode for the fine particles is low and the like can be effectively solved; and the charged micro-mist subsystem generates mist droplet particles with different particle sizes, and the mist droplet particles form a spherical electric field of the mist droplet particles under the voltage of the annular electrode, so that fine particles which are not easy to cyclone are adsorbed, and the aim of dust removal is further fulfilled.
The charged micro-mist cyclone dust removal system for fine particles can be used in all dust production links of a coal mine, can meet the dust removal requirements of different types of particles by changing the position of the atomizing nozzle, the spraying amount and the high-voltage electrostatic voltage, and has a wide dust removal particle size range. Meanwhile, the invention can adopt different dust removal modes aiming at different coal qualities and seasons, namely the cyclone separation subsystem or the charged water mist subsystem can be independently used.
The exhaust funnel is provided with the internal slide way, so that high-voltage contacts are not exposed in a severe environment with high humidity and high dust, the exhaust funnel is safer, and the atomizing nozzle can move up and down in the exhaust funnel through the arrangement of the exhaust funnel, so that not only can spray for cleaning a cyclone separation subsystem be generated, but also charged micro-mist particles for capturing fine particles can be generated, and the exhaust funnel achieves multiple purposes.
Drawings
FIG. 1 is a schematic structural diagram of a charged fine-particle mist cyclone dust removal system of the present invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of an internal space of an exhaust funnel in the charged fine-particle cyclone dust removal system;
in the above figures, 1, an atomizing nozzle; 2. a ring electrode; 3. a voltage stabilizing compensator; 4. adjusting a valve; 5. a butterfly valve; 6. a water level detector; 7. a water tank; 8. a class C filter; 9. a T-stage filter; 10. a screw air compressor; 11. a gas storage tank; 12. a gas pressure gauge; 13. a hose; 14. an exhaust funnel; 15. a check valve; 16. a booster water pump; 17. a cyclone separator cylinder; 18. a cone; 19. a dust collection box; 20. an ammeter; 21. a voltmeter; 22. a high voltage electrostatic generator; 23. a voltage regulating valve; 24. a hydraulic cylinder; 25. a diverter valve; 26. a flow valve; 27. a hydraulic pump; 28. an overflow valve; 29. an oil tank; 30. a cyclone inlet; 31. an exhaust funnel slide way; 32. a water pressure gauge; 33. a piston rod; 34. a high voltage electrical insulation material protective layer; 35. an oil filter; 36. high voltage output cable.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings.
Example 1
A schematic structural diagram of a charged micro-mist cyclone dust removal system for fine particles is shown in figure 1 and comprises a hydraulic subsystem, a charged micro-mist subsystem and a cyclone separation subsystem.
The charged micro-fog subsystem comprises a micro-fog system gas circuit, a micro-fog system water circuit, a charged generation system, an atomizing nozzle 1, an annular electrode 2 and an exhaust funnel 14;
the micro-fog system gas path comprises a screw air compressor 10, a gas storage tank 11 and a gas pressure gauge 12; the screw compressor 10 is connected with one end of an air storage tank 11, the other end of the air storage tank 11 is connected with an air pressure meter 12, and the output end of the air pressure meter 12 is used as an outlet of an air path of the micro-fog system.
An air inlet of the screw air compressor 10 is sequentially connected with the T-level filter 9 and the C-level filter 8 in series; the C-stage filter 8 is used for removing liquid with the particle size of more than 1 micron and solid particles with the particle size of more than 3 microns in the air; the T-stage filter 9 is used for filtering liquid with the particle size of 1 micron and solid particles with the particle size of 3 microns, and further improves the air quality.
The micro-fog system water path comprises a water tank 7, a water level detector 6, a butterfly valve 5, a pressurizing water pump 16, a check valve 15, an adjusting valve 4, a pressure stabilizing compensator 3 and a water pressure gauge 32, wherein the water level detector 6 is arranged on the water tank 7, the butterfly valve 5, the pressurizing water pump 16, the check valve 15, the adjusting valve 4 and the pressure stabilizing compensator 3 are sequentially arranged in the pipeline direction communicated with the water tank 7 and the water pressure gauge 32, and the output end of the water pressure gauge 32 is used as the outlet of the micro-fog system water path.
The outlet of the micro-fog system gas path and the outlet of the micro-fog system water path are combined into a path through a hose 13 before being communicated with the atomizing nozzle, and then are communicated with the atomizing nozzle 1;
the charge generation system comprises a voltage regulating valve 23, a high-voltage electrostatic generator 22, a voltmeter 21 and an ammeter 20; one end of the ring electrode 2 penetrates through the exhaust funnel slide way 31 to be grounded, the other end of the ring electrode 2 penetrates through the exhaust funnel slide way 31 through a high-voltage output cable 36 to be connected with a high-voltage static generator 22, the high-voltage output cable is prevented from being exposed outside, an ammeter 20 and a voltmeter 21 are arranged on the high-voltage output cable 36, and the high-voltage static generator 22 is connected with a voltage regulating valve 23.
The voltage adjustable range of the high-voltage electrostatic generator is 10-60 KV.
The hydraulic subsystem mainly comprises a hydraulic pump 27, an oil tank 29, an oil filter 35, a flow valve 26, a reversing valve 25, a hydraulic cylinder 24 and an overflow valve 28; a piston is arranged in the hydraulic cylinder 27, a rodless cavity is arranged at one side of the piston, and a rod cavity is arranged at the other side of the piston;
the oil inlet end of a hydraulic pump 27 is connected with the oil outlet of an oil tank 29, the oil outlet end of the hydraulic pump 27 is connected with a flow valve 26, the front end of the hydraulic pump 27 is provided with an oil filter 35, the flow valve 26 is connected with a reversing valve 25, the reversing valve 25 is a four-way valve, one passage is connected with the oil return port of the oil tank 29, two passages of the reversing valve 25 are respectively connected with a rod cavity and a rodless cavity on two sides of a piston in a hydraulic cylinder 24, and all the devices are connected through pipelines; one end of a branch pipeline with an overflow valve 28 is connected to the pipeline at the inlet of the flow valve 26, and the other end of the branch pipeline of the overflow valve 28 is communicated with an oil return port of an oil tank 29;
an annular electrode 2 is arranged below the atomizing nozzle 1, the atomizing nozzle 1 and the annular electrode 2 are both arranged in an exhaust funnel 14, the exhaust funnel 14 is provided with an exhaust funnel slide way 31, an atomizing nozzle slide block is arranged and connected on the atomizing nozzle 1, the atomizing nozzle slide block is matched with the exhaust funnel slide way to realize the adjustment of the distance between the atomizing nozzle and the annular electrode and the up-down position, and a cyclone separation subsystem is connected below the exhaust funnel 14;
the cyclone separation subsystem comprises a cyclone separator cylinder body 17, a cone 18 and a dust collection box 19, wherein a cyclone separator inlet 30 is arranged at the upper end of the cyclone separator cylinder body 17, the upper part of the cyclone separator cylinder body 17 is hermetically connected with an exhaust funnel 14 in the charged micro-mist subsystem, the exhaust funnel extends to the upper part of the cyclone separator cylinder body 17, an atomizing nozzle in the exhaust funnel 14 can slide to the upper part of the cyclone separator cylinder body 17, the outlet of the cyclone separator cylinder body 17 is connected with the cone 18, and the dust collection box 19 is arranged below the cone.
The dust collecting box 19 is also externally connected with a discharger, and when the dust stored in the dust collecting box reaches the capacity of the dust collecting box, the dust is automatically discharged by the discharger.
The cyclone separation subsystem is internally coated with a high-voltage electric insulating material protective layer 34, and the high-voltage electric insulating material protective layer 34 is made of low-density polyethylene.
A dust removal method of a charged fine mist cyclone dust removal system for fine particles adopts the charged fine mist cyclone dust removal system for the fine particles, and comprises the following steps:
(1) firstly, starting a charged micro-mist subsystem, and regulating the pressure of gas and liquid by regulating the flow of a micro-mist system gas path and a micro-mist system water path to provide atomized particles with different particle sizes;
the position of the atomizing nozzle 1 is controlled by the hydraulic subsystem, the atomizing nozzle extends to the upper part of the cyclone separation subsystem, the cyclone separation subsystem is cleaned, after the cleaning is finished, the atomizing nozzle is driven to be arranged in the exhaust funnel through the reciprocating motion of a piston in a hydraulic cylinder in the hydraulic subsystem and is positioned above the annular electrode 2, and the vertical distance between the atomizing nozzle and the annular electrode 2 is adjusted to a proper position.
(2) The voltage of the annular electrode is adjusted by adjusting the voltage of the high-voltage electrostatic generator, and after atomized particles with different particle sizes pass through the annular electrode, a spherical electric field of charged micro-atomized particles with different particle sizes is formed;
(3) when the dusty airflow enters the cyclone separation subsystem, dust particles with the particle size of more than 15 microns are discharged into the dust collection box 19 from the cone 18 along the cylinder 17 of the cyclone separator under the action of centrifugal force, and when the dust is stored to a certain degree, the dust is automatically discharged by the discharger. The fine particles rise to the exhaust funnel 14 through the inner vortex, and are surrounded by the spherical electric fields of the charged micro-mist particles with different particle sizes, so that the dust particles are adsorbed and captured only by contacting the spherical electric fields of the charged micro-mist particles, and are adsorbed mutually under the electrostatic action to generate condensation and further settle.
In order to avoid the water shortage phenomenon in the water tank 7, the water level detector 6 is arranged on the water tank 7, so that automatic water supply and drainage of the water tank are realized, and the pressure water pump 16 is effectively prevented from idling and being damaged due to overflow and water shortage of the water tank.
In order to ensure the service life of the screw air compressor 10, a C-level filter 8 and a T-level filter 9 are connected in series at an air inlet of the front section of the screw air compressor 10. The C-grade filter 8 can remove a large amount of liquid and solid particles more than 3 microns in the air, and the T-grade filter 9 can filter out the liquid and the solid particles smaller than 1 micron, so that the air quality is further improved.
The interior surface of the cyclone separation subsystem is coated with a protective layer 34 of high voltage electrical insulation material, which is low density polyethylene. The synthetic resin obtained by polymerizing ethylene free radicals under high pressure has high impact resistance and excellent electrical insulation performance because of the large number of long and short branched chains in the molecular chain.
Fig. 2 is a three-dimensional cross-sectional view of the exhaust funnel, the atomizer 1 is fixed at the bottom of the piston rod 33, the atomizer slides up and down along the exhaust funnel slide way 31 under the control of the flow valve 26, the high-voltage output cable 36 passes through the connecting ring electrode 2 from the adjacent slide way, and no high-voltage contact inside the exhaust funnel is exposed to the severe environment with high humidity and high dust.
The reversing valve 25 is opened and closed to realize the reversing and cutting of the hydraulic oil, so that the hydraulic cylinder 24 can make reciprocating linear motion, and the flexibility and convenience for controlling the atomizing nozzle 1 are improved.
The hydraulic cylinder 24 of the system has a self-locking function, and when the hydraulic subsystem is abnormal, the piston rod 33 can be immediately stopped and self-locked at the running position.
In order to conveniently clean dust in the cyclone separator, the tail end of the cone 18 of the cyclone separator is connected with a dust collection box 19, the dust collection box 19 is designed into a drawer type, and an observation port is arranged on the surface of the dust collection box 19, so that the dust accumulation condition in the dust collection box 19 can be known in real time.
Example 2
A charged micro-mist cyclone dust removal system for fine particles, which is the same as the embodiment 1.
A dust removal method of a charged micro-mist cyclone dust removal system for fine particles comprises the following specific operation steps:
(1) firstly, a butterfly valve 5 is opened, tap water reaches an atomizing nozzle 1 after passing through a pressure stabilizing compensator 3, then a mining screw air compressor 10 is opened, air passes through a C-level filter 8 and a T-level filter 9, enters an air storage tank 11 after passing through the screw air compressor 10, and then starts to spray;
(2) the flow of oil liquid is controlled by adjusting the flow valve 26, the reversing valve 25 is changed to reverse, the oil liquid enters the hydraulic cylinder 24, the piston rod 33 is pushed to reciprocate, the atomizing nozzle 1 slides downwards into the cylinder body 17 of the cyclone separator along an exhaust pipe slide way 31 arranged on the inner wall of the exhaust pipe, the wall surface of the cylinder body 17 of the cyclone separator is sprayed, the atomized oil liquid rises into the exhaust pipe along the exhaust pipe slide way 31 after being washed clean and is positioned above the annular electrode 2, the vertical distance between the atomized oil liquid and the annular electrode 2 is adjusted to a proper position, and the adjustable range is 10-100 mm;
(3) the high-voltage electrostatic generator 22 is started, voltage is adjusted, the annular electrode 2 is electrified, water flow is adjusted through the adjusting valve 4, air flow and pressure are adjusted through the air pressure meter 12, micron-sized atomized particles generated by the atomizing nozzle 1 are formed after passing through the annular electrode, charged micro-fog particles cover the cross section of the air duct of the exhaust funnel 14, and a spherical electric field of the micro-fog particles with different particle sizes is formed;
(4) the cyclone separation subsystem is started, dust-containing air flow enters from the cyclone separator inlet 30, coarse particles are discharged into the dust collection box 19 from the cone 18 along the cyclone separator cylinder 17 under the action of centrifugal force, and the coarse particles are automatically discharged by the discharger after ash is stored to a certain degree. The fine particles rise to the exhaust funnel 14 through the inner vortex, are surrounded by the spherical electric fields of the charged micro-mist particles with different particle sizes, are adsorbed and captured as long as the fine particles contact the spherical electric fields of the charged micro-mist particles, are adsorbed mutually under the electrostatic action, are subjected to condensation, and then are settled.
By adopting the charged micro-mist cyclone dust removal system for fine particles, the dust removal rate of fine particle dust with the particle size of less than 2.5 microns reaches 71.8%, and compared with the case of singly using a cyclone separation subsystem, the dust removal rate is improved by 36.8%.
Claims (10)
1. The charged micro-mist cyclone dust removal system for the fine particles is characterized by comprising a charged micro-mist subsystem and a dust removal device;
the charged micro-fog subsystem comprises a micro-fog system gas circuit, a micro-fog system water circuit, a charged generation system, an atomizing nozzle, an annular electrode and an exhaust funnel;
the outlet of the micro-fog system gas path and the outlet of the micro-fog system water path are both communicated with the atomizing nozzle; the atomizing nozzle is characterized in that an annular electrode is arranged below the atomizing nozzle, the annular electrode is connected with a charge generation system, the atomizing nozzle and the annular electrode are both arranged in the exhaust funnel, the exhaust funnel is provided with an exhaust funnel slide way, an atomizing nozzle slide block is arranged and connected on the atomizing nozzle, the atomizing nozzle slide block is matched with the exhaust funnel slide way and used for adjusting the distance between the atomizing nozzle and the annular electrode and the upper position and the lower position of the atomizing nozzle and the annular electrode, and a dust removal device is connected below the exhaust funnel.
2. The system of claim 1, further comprising a power system for driving the atomizer, wherein the atomizer is connected to the power system for driving the atomizer.
3. The charged fine particle mist cyclone dust removal system as claimed in claim 3, wherein the power system for pushing the atomizing nozzle is a hydraulic subsystem which mainly comprises a hydraulic pump, an oil tank, an oil filter, a flow valve, a reversing valve, a hydraulic cylinder and an overflow valve; a piston is arranged in the hydraulic cylinder, a rodless cavity is arranged on one side of the piston, and a rod cavity is arranged on the other side of the piston; the atomizing nozzle is connected with a piston rod in the hydraulic cylinder;
the oil inlet end of the hydraulic pump is connected with the oil outlet of the oil tank, the oil outlet end of the hydraulic pump is connected with the flow valve, the front end of the hydraulic pump is provided with an oil filter, the flow valve is connected with a reversing valve, the reversing valve is a four-way valve, one passage is connected with an oil return port of the oil tank, meanwhile, two passages of the reversing valve are respectively connected with a rod cavity and a rodless cavity on two sides of a piston in the hydraulic cylinder, and all devices are connected through pipelines; and the pipeline of the inlet of the flow valve is connected with one end of a branch pipeline with an overflow valve, and the other end of the branch pipeline of the overflow valve is communicated with an oil return port of the oil tank.
4. The charged fine mist cyclone dust removal system for fine particulate matter of claim 1, wherein the fine mist system gas circuit comprises a screw air compressor, a gas storage tank and a gas pressure gauge; the screw air compressor is connected with one end of an air storage tank, the other end of the air storage tank is connected with an air pressure gauge, and the output end of the air pressure gauge is used as an outlet of an air path of the micro-mist system;
the air inlet of the screw air compressor is sequentially connected with the T-level filter and the C-level filter in series; the C-grade filter is used for removing liquid with the particle size of more than 1 micron and solid particles with the particle size of more than 3 microns in the air; the T-stage filter is used to filter out <1 micron of liquid and <3 micron of solid particles.
5. The charged fine particle cyclone dust removal system of claim 1, wherein the water path of the fine particle system comprises a water tank, a water level detector, a butterfly valve, a booster water pump, a check valve, a regulating valve, a pressure stabilizing compensator and a water pressure gauge, the water tank is provided with the water level detector, the butterfly valve, the booster water pump, the check valve, the regulating valve and the pressure stabilizing compensator are sequentially arranged in the direction of a pipeline communicated with the water pressure gauge, and the output end of the water pressure gauge is used as the outlet of the water path of the fine particle system, wherein the regulating valve can be selectively installed according to the requirement on flow regulation.
6. The charged fine particle mist cyclone dust removal system as claimed in claim 1, wherein the outlet of the fine particle mist system gas path and the outlet of the fine particle mist system water path are combined into a path through a hose before being communicated with the atomizer, and then communicated with the atomizer.
7. The system of claim 1, wherein the system comprises a voltage regulating valve, a high voltage electrostatic generator, a voltmeter and an ammeter; one end of the annular electrode penetrates through the exhaust funnel slideway to be grounded, the other end of the annular electrode penetrates through the exhaust funnel slideway through a high-voltage output cable to be connected with a high-voltage electrostatic generator, a current meter and a voltage meter are arranged on the high-voltage output cable, the high-voltage electrostatic generator is connected with a voltage regulating valve, and the voltage regulating range of the high-voltage electrostatic generator is 10-60 KV.
8. The charged fine particle mist cyclone dust removal system of claim 1, wherein the atomizer slide block and the atomizer are both capable of moving downward through the ring electrode; the vertical distance between the annular electrode and the atomizing nozzle is adjustable, and the adjustable range is 10-100 mm.
9. The system of claim 1, wherein the cyclone separator is a cyclone separation subsystem; the cyclone separation subsystem comprises a cyclone separator cylinder, a cone and a dust collection box, wherein the upper end of the cyclone separator cylinder is provided with a cyclone separator inlet, the upper part of the cyclone separator cylinder is hermetically connected with an exhaust funnel in the charged micro-mist subsystem, the exhaust funnel extends to the upper part of the cyclone separator cylinder, an atomizing nozzle in the exhaust funnel can slide to the upper part of the cyclone separator cylinder, the outlet of the cyclone separator cylinder is connected with the cone, and the dust collection box is arranged below the cone;
the cyclone separation subsystem is internally coated with a high-voltage electric insulation material protective layer which is made of low-density polyethylene.
10. A dust removing method of a fine particulate charged micro-mist cyclone dust removing system, which is characterized in that the fine particulate charged micro-mist cyclone dust removing system of any one of claims 1 to 9 is adopted, and the method comprises the following steps:
(1) the flow of the micro-mist system gas circuit and the micro-mist system water circuit is adjusted, the pressure of gas and liquid is adjusted, and atomized particles with different particle sizes are provided;
(2) the voltage of the annular electrode is adjusted by adjusting the voltage of the high-voltage electrostatic generator, and after atomized particles with different particle sizes pass through the annular electrode, a spherical electric field of charged micro-atomized particles with different particle sizes is formed;
(3) the dust-containing airflow enters the cyclone separator with the inner surface washed through the inlet of the cyclone separator, and under the centrifugal force action of the cyclone separator, the coarse particles enter the cone along the cylinder wall of the cyclone separator and are settled in the dust collection box; the fine particles rise to the exhaust funnel through the inner vortex, are in the surrounding of the atomizing nozzle and the annular electrode in the charged micro-mist subsystem, are adsorbed and captured when contacting with spherical electric fields of charged micro-mist particles with different particle sizes, are mutually adsorbed under the electrostatic action, are subjected to condensation, and then are settled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045798.7A CN111167249A (en) | 2020-01-16 | 2020-01-16 | Charged micro-mist cyclone dust removal system and method for fine particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045798.7A CN111167249A (en) | 2020-01-16 | 2020-01-16 | Charged micro-mist cyclone dust removal system and method for fine particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111167249A true CN111167249A (en) | 2020-05-19 |
Family
ID=70618439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010045798.7A Pending CN111167249A (en) | 2020-01-16 | 2020-01-16 | Charged micro-mist cyclone dust removal system and method for fine particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111167249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680168A (en) * | 2021-08-17 | 2021-11-23 | 太原理工大学 | Intelligent purification system for underground multiphase composite pollutants |
| CN113786935A (en) * | 2021-08-11 | 2021-12-14 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204769189U (en) * | 2015-06-12 | 2015-11-18 | 天津博仕化工科技有限公司 | Easily wash cyclone |
| CN206366461U (en) * | 2016-12-06 | 2017-08-01 | 天津真知味食品配料有限公司 | A kind of self-interacting type cyclone separator |
| CN207445868U (en) * | 2017-10-31 | 2018-06-05 | 陈淼 | A kind of ultralow dedusting demister of eddy flow charged water spray |
| CN208466195U (en) * | 2018-06-29 | 2019-02-05 | 江西柏立松科技环保设备制造有限公司 | A kind of high-air-tightness cyclone dust collectors |
| KR101953743B1 (en) * | 2017-11-16 | 2019-03-04 | 한국에너지기술연구원 | Apparatus for Removing Fine Particles Agglomeration with Highly-Charged Mist Spraying |
| CN212790259U (en) * | 2020-04-13 | 2021-03-26 | 南京阳春科技有限公司 | Charged micro-fog dust suppression system equipment |
-
2020
- 2020-01-16 CN CN202010045798.7A patent/CN111167249A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204769189U (en) * | 2015-06-12 | 2015-11-18 | 天津博仕化工科技有限公司 | Easily wash cyclone |
| CN206366461U (en) * | 2016-12-06 | 2017-08-01 | 天津真知味食品配料有限公司 | A kind of self-interacting type cyclone separator |
| CN207445868U (en) * | 2017-10-31 | 2018-06-05 | 陈淼 | A kind of ultralow dedusting demister of eddy flow charged water spray |
| KR101953743B1 (en) * | 2017-11-16 | 2019-03-04 | 한국에너지기술연구원 | Apparatus for Removing Fine Particles Agglomeration with Highly-Charged Mist Spraying |
| CN208466195U (en) * | 2018-06-29 | 2019-02-05 | 江西柏立松科技环保设备制造有限公司 | A kind of high-air-tightness cyclone dust collectors |
| CN212790259U (en) * | 2020-04-13 | 2021-03-26 | 南京阳春科技有限公司 | Charged micro-fog dust suppression system equipment |
Non-Patent Citations (5)
| Title |
|---|
| 无锡轻工业学院: "《食品工厂机械与设备》", 28 February 1981, 中国轻工业出版社 * |
| 葛少成: "水雾荷电脱除PM2.5影响因素试验研究", 《中国安全科学学报》 * |
| 陈曦: "针对矿山细粉尘的新型微雾旋风除尘系统", 《中国安全科学学报》 * |
| 陈艳: "《液压与气压传动》", 28 February 2017, 中国铁道出版社 * |
| 陈裕成: "《建筑机械与设备》", 31 January 2019, 北京理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786935A (en) * | 2021-08-11 | 2021-12-14 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
| CN113786935B (en) * | 2021-08-11 | 2022-06-17 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
| CN113680168A (en) * | 2021-08-17 | 2021-11-23 | 太原理工大学 | Intelligent purification system for underground multiphase composite pollutants |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105999923B (en) | A kind of the multimachine reason wet-scrubbing equipment and dust removal method of water circulation use | |
| CN103706219B (en) | Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates | |
| CN111167249A (en) | Charged micro-mist cyclone dust removal system and method for fine particles | |
| CN103042015A (en) | Automatic small-dip-angle dusty pipeline cleaning device | |
| CN104801422B (en) | Efficient dust removal system for coal-fired flue gas | |
| CN103495503A (en) | Electric coagulation spray dust removal system | |
| CN207343052U (en) | A kind of electrostatic cleaning and spraying all-in-one machine | |
| CN206637245U (en) | A kind of air accumulator used for air compressor | |
| CN101406785A (en) | Electrostatic-filtering type combined dust-cleaning equipment | |
| CN102389684A (en) | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent | |
| CN111042854A (en) | Underground dust suppression device for coal mine | |
| CN110841800A (en) | Electrostatic dust collection device | |
| CN204996274U (en) | Circulating fluidized bed boiler is with two bag dust removers of two electricity | |
| CN106237772B (en) | The wet type electric-bag complex dust collector of cooperation-removal multiple pollutant | |
| CN201227574Y (en) | Coal gas purifier for blast furnace gas combustion-gas vapor combined cycle generation | |
| CN203022796U (en) | Coal mine tunnel accumulated dust removal device | |
| CN102755806B (en) | A kind of cleaner of parasitic type combination and operation method thereof | |
| CN205699963U (en) | A kind of centrifugal humidification-type dedusting filter | |
| CN114534939A (en) | Water film vortex electric dust remover | |
| CN110816583B (en) | Variable-frequency air supply device for rail transit vehicle | |
| CN102641785A (en) | Intelligent brushing, sweeping and rapping device for high voltage electrostatic precipitator tail electric field | |
| CN207357401U (en) | A kind of dry fog dust falling system | |
| CN109675377A (en) | Pulse bag type dust collector equipped with mechanical ash removing mechanism | |
| CN205127621U (en) | Novel water smoke dust collector of ship unloaders | |
| CN204034869U (en) | A kind of electrostatic precipitator being installed on sweeping machine exhaust outlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |