CN115414750B - Ultrasonic tower type split flow wet dust removal system and dust removal method - Google Patents
Ultrasonic tower type split flow wet dust removal system and dust removal method Download PDFInfo
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- CN115414750B CN115414750B CN202210960066.XA CN202210960066A CN115414750B CN 115414750 B CN115414750 B CN 115414750B CN 202210960066 A CN202210960066 A CN 202210960066A CN 115414750 B CN115414750 B CN 115414750B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/41—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
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- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses an ultrasonic tower type split flow wet dust removal system and a dust removal method, and belongs to the technical field of dust removal. The invention comprises a return air dust collection system, a purification system, a water supplementing circulation system and a mud-water separation system, wherein the return air dust collection system is provided with a dust collection end and a return air end, and the purification system is arranged between the dust collection end and the return air end of the return air dust collection system; the purifying system is a tower-type split-flow purifying system consisting of a plurality of groups of purifying devices, the purifying devices are provided with a cleaning liquid circulating part, an air flow circulating part and a purifying part, and the mud-water separating system is connected with the outlet end of the purifying system. The invention uses the ultrasonic working principle to remove dust, and simultaneously uses the tower type dust removing structure to effectively reduce resistance and improve the processing air quantity.
Description
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to an ultrasonic tower type split flow wet dust removal system and a dust removal method.
Background
When the underground coal mine tunnel is in tunneling construction, a large amount of mineral dust can be generated on the tunneling working face of the underground coal mine tunnel. The hazard of dust content mainly involves two aspects: firstly, workers inhale respiratory dust for a long time, which can cause pulmonary fibrosis lesion and cause pneumoconiosis (silicosis, coal pneumoconiosis, coal silicosis and the like), thereby becoming a miner occupational disease with great harm; secondly, under certain conditions, when dust is gathered to a certain extent, coal dust explosion can occur, so that accidents such as casualties, serious damage to mine equipment and the like are caused, and serious mine disasters are easy to cause.
At present, the dust removal mode of the domestic mine tunnel tunneling working face is mainly divided into a dry mode and a wet mode. The dry type mainly adopts a dry dust remover, dust particles in a working surface are firstly absorbed in the dust remover in the running process, and then are sent into a loading bin through an ash bin and a belt conveyor to finish the dust removing process; however, the dry dust collector has the problems of large volume, inconvenient movement and incapability of being used in a tunneling roadway with limited space, and the filter bag can be stuck with a bag when meeting water, so that the dust collection efficiency is affected. The wet dust removal is a method for cleaning gas by fully contacting washing liquid (generally water) with dust-containing gas and washing dust particles, and the wet dust removal realizes emission standard to a certain extent, but in the normal use process, a large amount of water is required to be utilized, so that water resource waste is caused, and the wet dust removal is difficult to be applied to arid and water-deficient coal mine areas in China; and part of wet dust removal equipment adopts modes such as atomization spraying to carry out dust fall to dust in the air current, and the dust removal efficiency of this method to respiratory dust is lower, and current single mode's water bath wet dust remover forms big bubble easily after the mineral dust gets into liquid for the dust can't fully contact with liquid, leads to getting rid of the effect to the dust relatively poor, and the practicality is lower.
Disclosure of Invention
The invention provides an ultrasonic tower type split flow wet dust removal system aiming at the technical problems in the prior art.
In order to solve the technical problems, the invention comprises a return air dust collection system, a purification system, a water supplementing circulation system and a mud-water separation system, wherein the return air dust collection system is provided with a dust collection end and a return air end, and the purification system is arranged between the dust collection end and the return air end of the return air dust collection system;
the purifying system is a tower-type split-flow purifying system consisting of a plurality of groups of purifying devices, the purifying devices are provided with a cleaning liquid circulating part, an air flow circulating part and a purifying part, and the mud-water separating system is connected with the outlet end of the purifying system.
Preferably, the dust removing system is further provided with a box body, the purifying system is arranged inside the box body, the dust collection end and the return air end of the return air dust collection system are arranged outside the box body, and the bottom of the box body is connected with the mud-water separation system.
Preferably, the inlet end of the purifying system is connected with an air inlet pipe of the return air dust collection system, a plurality of groups of purifying devices are arranged in a tower type staggered manner, and the plurality of groups of purifying devices are connected with the air inlet pipe and are communicated through a cleaning liquid circulating part.
Preferably, the purifying device further comprises a purifying water tank, the purifying part is arranged in the purifying water tank, and the purifying part is provided with an ultrasonic cleaning component consisting of a cleaning vibration plate and a plurality of ultrasonic transducers;
the purifying water tank is internally provided with a filtering component, the filtering component is arranged at the upper end of the purifying part, and the upper end of the filtering component is connected with an ultrasonic transducer.
Preferably, the cleaning solution circulating part is provided with a circulating water supplementing pipe and a circulating water outlet pipe, and the circulating water supplementing pipe is connected with a water supplementing circulating system; the air flow circulating part is provided with a diversion air inlet pipe, the diversion air inlet pipe is provided with a horizontal part, the horizontal part is arranged at the upper end of the purifying part, and a plurality of air outlet holes are formed in the horizontal part.
Preferably, the dust collection end of the return air dust collection system is provided with a primary filtering device, the return air end of the return air dust collection system is provided with a fan, and the dust collection end and the return air end are arranged at the top of a roadway through sliding parts.
Preferably, the side of the box body is connected with an electric control system, the upper part of the box body is provided with a heat dissipation condensing part, and the bottom of the box body is connected with a moving part through a supporting part.
The invention also provides an ultrasonic tower type split flow wet dust collection method, which utilizes the ultrasonic tower type split flow wet dust collection system, and the dust collection method comprises the following steps:
1) Assembling each device of the dust removing system, and then operating the electric control system and the fan to enable the inside of the purifying system to form a negative pressure state, so that dust-containing airflow of the working surface enters the dust removing system through the return air dust collecting system under the action of negative pressure;
2) Under the filtering action of the primary filtering device, the dust with larger particles is filtered and falls off along the surface of the return air dust collection system, and the filtered dust-containing air flow is divided into multiple paths along a pipeline to enter the purifying system for mixing with cleaning liquid;
3) The method comprises the steps that after dust-containing air flow is mixed with cleaning liquid, the dust-containing air flow rises in the cleaning liquid in the form of dust-containing bubbles, a large amount of cavitation bubbles are generated under the action of an ultrasonic transducer, when the rising dust-containing bubbles are contacted with the cavitation bubbles, the high-energy cavitation bubbles break up the dust-containing bubbles at the moment of breaking, the broken bubbles fully contact with water, the larger dust-containing bubbles are broken up into smaller dust-containing bubbles, the smaller dust-containing bubbles pass through a filter component in the rising process, and dust particles are attached to the surface of the filter component;
4) The purified wind flow continuously rises, and after the temperature is reduced and dehumidified through a heat dissipation condensing part in the dust removal system, the clean wind flow is discharged into an operation area at the rear part of the roadway.
Preferably, in the running process of the device, the cleaning solution circulating part continuously carries out water replenishing operation of the cleaning water tank, when the liquid level inside the cleaning water tank is higher than the upper part of the water outlet pipe, the cleaning solution inside the cleaning water tank flows into the next-stage cleaning water tank, and the final end is separated by the mud-water separation system, so that the recycling of the cleaning solution is realized.
The invention also provides application of the dust removal system in a mine working face, and the ultrasonic tower type split flow wet dust removal system is utilized.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an ultrasonic tower type split flow wet dust removal system applied to a mine tunnel tunneling working face, which has reasonable layout, convenient operation and good dust removal effect; the tower-type split-flow structure can effectively improve the purifying treatment air quantity of the dust removing system without increasing resistance, can divide and treat air flow, reduces the resistance of equipment, and can realize the division of bubbles and increase the contact area to improve the dust removing efficiency through the irregular, small-aperture and high-through-hole-rate porous medium filter plates arranged in the purifying system; simultaneously, the principles of ultrasonic cavitation and ultrasonic mechanical vibration are utilized, and two working principles of ultrasonic waves are adopted in design: cavitation bubbles generated by ultrasonic cavitation can crush rising dust-containing bubbles on one hand, and can clean a mud layer attached in a porous medium filter plate on the other hand, so that the dust removal efficiency and continuous operation of dust removal equipment are improved, and ultrasonic mechanical vibration can realize micro-amplitude high-frequency vibration of the filter plate, so that mud is prevented from being attached to the inner wall of the aperture of the filter plate; moreover, the system can realize the cyclic utilization of water resources and the self-cleaning of the inside of the purified water tank, can save the water resources and has high degree of automation.
The cleaning vibration plate in the purifying system can effectively convert electric energy into mechanical energy, micro-amplitude high-frequency vibration of the cleaning vibration plate is transmitted into water to generate cavitation bubbles, and rising bubbles and sludge attached to the pore diameter of the cleaning porous medium filter plate can be smashed when the high-energy cavitation bubbles are broken, so that the self-cleaning function of the inside of the equipment is realized; in addition, four ultrasonic transducers sealed by the sealing boxes are fixed on each porous medium filter plate, so that the porous medium filter plates can be driven to realize micro-amplitude high-frequency vibration, and larger dust particles are prevented from blocking through holes of the porous medium filter plates. When the air flows out from the bottom of the purifying water tank and moves upwards in the form of bubbles, the bubbles can be broken under the action of tiny cavitation bubbles, and part of dust in the bubbles can be absorbed by peripheral liquid at the moment of bubble breaking, so that the dust removing efficiency of the equipment is improved; in the process of passing through the porous medium filter plate, dust-containing bubbles are rubbed with the inner surface of the aperture of the filter plate, so that dust particles in the bubbles are attached to the inner surface of the aperture of the filter plate, and the wind flow is further purified; and the heat dissipation condensing grid designed at the air outlet effectively reduces the temperature and humidity of the purified air flow.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dust removal system according to the present invention;
FIG. 2 is a schematic diagram of the structure of the purification device of the present invention;
FIG. 3 is a schematic perspective view of a purification apparatus of the present invention;
FIG. 4 is a schematic view of the structure of a porous media filter plate in the purification system of the present invention.
The symbols in the drawings are marked:
1. a purification system; 101. purifying the water tank; 102. a circulating water replenishing pipe; 103. a circulating water outlet pipe; 104. a split air inlet pipe; 105. an air outlet pipe; 106. a horizontal portion; 107. cleaning a vibration plate; 108. an ultrasonic transducer; 109. a porous media filter plate; 110. a seal box; 2. a dust collection end; 3. a return air end; 4. an air inlet cylinder; 5. a dust collection port; 6. an air outlet cylinder; 7. an axial flow type negative pressure fan; 8. a monorail crane; 9. a filter screen; 10. a case; 11. an explosion-proof electric control system; 12. a water supplementing pipe; 13. a mud-water separation device; 14. a sludge box; 15. a centrifugal water pump; 16. a circulating water return pipe; 17. an electromagnetic three-way valve; 18. a heat-dissipating condensing grid; 19. a support frame; 20. an equipment chassis; 21. and (3) a wheel.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Referring to fig. 1, the invention provides an ultrasonic tower type split flow wet dust collection system, which comprises a return air dust collection system, a purification system 1, a water supplementing circulation system and a mud-water separation system, wherein the return air dust collection system is provided with a dust collection end 2 and a return air end 3, and the purification system 1 is arranged between the dust collection end 2 and the return air end 3 of the return air dust collection system;
the purifying system 1 is a tower-type split-flow purifying system consisting of a plurality of groups of purifying devices, the purifying devices are provided with a cleaning liquid circulating part, an air flow circulating part and a purifying part, and the mud-water separating system is connected with the outlet end of the purifying system 1.
Specifically, as shown in fig. 1, a dust collection end 2 of the return air dust collection system is provided with an air inlet cylinder 4, the outer end part of the air inlet cylinder 4 is provided with a conical dust collection opening 5, and dust-containing air flow generated by a tunneling working face enters the return air dust collection system through the dust collection opening 5; the air return end 3 is provided with an air outlet cylinder 6, and the outer end part of the air outlet cylinder 6 is connected with an axial-flow negative pressure fan 7; the air inlet cylinder 4 and the air outlet cylinder 6 are hung on a track at the top of a roadway through a monorail crane 8, so that the movable and fixed air inlet cylinder and the fixed air outlet cylinder can be moved, and the flexible applicability is strong.
Furthermore, a section of pipeline which is inclined downwards is arranged between the dust collection opening 5 and the air inlet cylinder 4, a primary filter device is arranged in the pipeline, and the primary filter device is provided with a filter screen 9, so that on one hand, the flow speed of dust-containing air flow is reduced, and the impact on equipment is reduced due to the inclined pipeline; on the other hand, the filter screen 9 installed at the dust collection opening 5 can preliminarily filter larger dust particles, so that the larger dust particles are prevented from blocking the internal equipment of the purification system, dust containing air flow is filtered and slides along the surface of the return air dust collection system under the filtering action of the preliminary filtering device, and the filtered dust containing air flow enters the purification system along the air inlet cylinder 4.
Specifically, as shown in fig. 1, the dust removing system is further provided with a box body 10, the purifying system 1 is arranged inside the box body 10, and the purifying system 1 is suspended at the top of the box body 10 through four balance slings, and the purifying system 1 can always keep horizontal through the slings; the air inlet cylinder 4 extends into the box 10 through the left opening at the top of the box 10, the air inlet cylinder 4 at the outer side of the box 10 is a rigid air cylinder, and the air cylinder entering the box 10 adopts a negative pressure air cylinder with a steel ring, so that the air inlet cylinder 4 has certain flexibility, and a plurality of split air pipes extend out of the air inlet cylinder 4 to be communicated with the purification system 1.
Further, an axial-flow negative pressure fan 7 is connected with a hole on the right side of the top of the box body 10 through an air outlet barrel 6, and is suspended on a track arranged on the top of a roadway by a monorail crane 8.
Furthermore, the invention is also provided with an explosion-proof electric control system 11, and the explosion-proof electric control system 11 is arranged on the external side edge of the box body 10 to realize the control of the whole system working process.
As the preferred embodiment of the invention, the plurality of groups of purifying devices are distributed from top to bottom and are arranged in a tower type staggered manner, and large air quantity can be effectively split by the arrangement of the tower type split wet type purifying system, so that the pressure of purifying air quantity in a single purifying device is reduced.
As shown in fig. 1 and 2, the invention is provided with three purifying devices from top to bottom, the purifying devices are provided with purifying water tanks 101, the purifying water tanks 101 are arranged in a box body 10, and the purifying system 1 is formed by the three purifying water tanks 101 and other purifying devices in the purifying water tanks; the purifying device comprises a cleaning liquid circulating part consisting of a circulating water supplementing pipe 102 and a circulating water outlet pipe 103, an air flow circulating part consisting of a diversion air inlet pipe 104 and an air outlet pipe 105, and a purifying part for purifying air flow.
Specifically, the circulating water replenishing pipe 102 and the circulating water outlet pipe 103 are of multi-section bent pipe structures, and are respectively arranged at two sides of the purifying water tank 101, and the circulating water replenishing pipe 102 is inserted into the purifying water tank 101 from the upper end, and the circulating water replenishing pipe 102 is connected with a water replenishing circulating system and is used for replenishing cleaning liquid in the purifying water tank 101, and the cleaning liquid adopted in the embodiment is water;
the circulating water outlet pipe 103 is connected with the bottom end of the side edge of the purified water tank 101 for water outlet, and the circulating water outlet pipe 103 is led out through the bottom of the purified water tank 101 and extends upwards to the height of the liquid level in the purified water tank 101, and then extends downwards to the inside of the next purified water tank 101 through a bent pipe.
Specifically, as shown in fig. 3, the outer end of the split air inlet pipe 104 is connected with the air inlet cylinder 4, the other end of the split air inlet pipe 104 extends into the purifying water tank 101 and is provided with a horizontal portion 106 in an extending manner, the horizontal portion 106 is arranged in parallel with the bottom plate of the purifying water tank 101, two sides of the horizontal portion 106 are connected with a plurality of air outlet pipes 105 which are mutually parallel and sequentially arranged, and the air outlet pipes 105 are mutually perpendicular to the horizontal portion 106.
Further, the distance between the air outlet pipes 105 arranged adjacently is gradually reduced from left to right, and a plurality of air holes are formed in the air outlet pipes 105. The unevenly arranged air outlet pipes 105 can form a certain resistance difference, the air flow is prevented from flowing out from the air inlet side, and the unevenly arranged air outlet pipes 105 and a plurality of air outlet holes on the air outlet pipes 105 can realize that the air flow uniformly flows out from the bottom of the purifying water tank 101 and moves upwards under the action of buoyancy in a bubble mode.
Specifically, the cleaning part is provided with a cleaning vibration plate 107 and an ultrasonic cleaning component, the cleaning vibration plate 107 is horizontally arranged at the bottom of the cleaning water tank 101 and is arranged at the lower end of the air outlet pipe 105, the ultrasonic cleaning component is arranged inside the cleaning vibration plate 107, the ultrasonic cleaning component is composed of 24 ultrasonic transducers 108 in total in four rows and six rows, the ultrasonic transducers 108 are uniformly distributed, and the 24 ultrasonic transducers 108 are electrically connected with the explosion-proof electronic control system 11 after being connected through leads. Under the action of the ultrasonic cleaning vibration plate 107, tiny cavitation bubbles are generated in gaps between the liquids, and when the high-energy tiny cavitation bubbles are broken after contacting with rising dust-containing bubbles, huge shock waves and heat emission are generated, the rising dust-containing bubbles are broken, and the purpose of increasing the contact area between dust and the liquids is achieved.
In the embodiment, an ultrasonic transducer is connected with an ultrasonic generator, the ultrasonic generator generates a high-frequency electric signal under the control of a control system and transmits the high-frequency electric signal to the ultrasonic transducer, the ultrasonic transducer converts the high-frequency electric signal generated by the ultrasonic generator into high-frequency mechanical vibration, and the high-frequency vibration of the ultrasonic transducer is transmitted to water to generate micro-gas nuclear cavitation bubbles under cavitation; the micro-gas nuclear cavitation bubbles catch the rising larger dust-containing bubbles and instantaneously collapse to break them down into smaller dust-containing bubbles.
Further, as shown in fig. 4, a filter element is arranged at the upper end of the inside of the purifying water tank 101, the filter element is a porous medium filter plate 109, and the filter plate is composed of porous medium foam nickel, and the porous medium filter plate 109 is arranged below the liquid surface of the purifying water tank 101; four ultrasonic transducers 108 are uniformly distributed and connected to the upper surface of the porous medium filter plate 109, the four ultrasonic transducers 108 are respectively arranged at four end corners of the upper surface of the porous medium filter plate 109, and the ultrasonic transducers 108 are tightly wrapped by a sealing box 110, pass through the porous medium filter plate 109 through bolt fastening, and are connected with the explosion-proof electronic control system 11 through electric connection.
In this embodiment, the circulating water replenishment pipe 102 made of a soft material is immersed in the cleaning liquid in the cleaning tank 101 from the upper end through the porous medium filter plate 109.
In this embodiment, when the dust-containing bubbles pass through the pores of the porous medium filter plate 109, the surfaces of the bubbles collide with the inner walls of the pores, the bubbles are broken and deformed, and dust particles on the surfaces and inside of the bubbles adhere to the surfaces of the inner walls, thereby achieving the purpose of filtering dust in the wind flow. Meanwhile, under the influence of high-frequency micro-vibration of the ultrasonic transducer 108 arranged on the surface of the porous medium filter plate 109, the porous medium filter plate 109 generates micro-vibration in the up-down direction, and the problem of reduced porosity of the pores of the porous medium filter plate 109 caused by dust accumulation on the inner walls of the pores is solved; cavitation bubbles generated by the bottom cleaning vibrating plate 107 can also penetrate into the inside of the micropores of the inside of the porous medium filter plate 109 to clean dust and sludge adhered to the inner surface.
Further, the water replenishing circulation system is provided with a water replenishing pipe 12, and the water replenishing pipe 12 is connected with a circulating water replenishing pipe 102 in the purifying device.
As a preferred embodiment of the invention, the mud-water separation system is arranged at the bottom of the box body 10, a water outlet at the bottom of the box body 10 is connected with the mud-water separation system, and the mud-water separation system is electrically connected with the explosion-proof electric control system 11; the mud-water separation system comprises a mud-water separation device 13, a mud tank 14 and a centrifugal water pump 15, wherein one end of the mud-water separation device 13 is connected with the mud tank 14 through a sewage pipeline, the other end, namely the lower left side, is connected with the centrifugal water pump 15, the centrifugal water pump 15 is externally connected with a circulating water return pipe 16, and the end part of the circulating water return pipe 16 is connected with a water supplementing pipe 12 and a circulating water supplementing pipe 102 through an electromagnetic three-way valve 17; the upper end of the mud-water separation device 13 is connected with the circulating water outlet pipe 103 and the water outlet of the tank body 10, the electromagnetic three-way valve 17 is connected with the explosion-proof electric control system 11 through electric connection, and the electromagnetic three-way valve 17 is controlled to start and stop according to the change of the liquid level in the purified water tank 101 through a control system, so that the water can be recycled.
In this embodiment, the mud-water separation device 13 can separate mud-water flowing out from the inside of the purifying system 1, the separated mud is further compressed and discharged to the mud tank 14 through the sewage draining channel, and the separated water flows back into the purifying system 1 in the tank 10 through the centrifugal water pump 15 for recycling.
Furthermore, the inner side of the upper part of the box body 10 is connected with a heat dissipation condensation grid 18, the heat dissipation condensation grid 18 is of a cuboid structure, the inside is of a grid structure, the heat dissipation condensation grid is fixedly arranged at the position of an air flow outlet at the upper right part of the box body 10, and the outside is connected with the air outlet cylinder 6; because the wind flows through the purification water tank 101 after wet dust removal, the temperature in the wind flows is higher and the humidity is higher, the heat dissipation condensing device is arranged, the temperature and the humidity of the wind flows can be reduced, the purified wind flows reach the condition that the temperature and the humidity are more proper, and a good working environment is provided for operators at the back of a roadway.
Further, the bottom of the box 10 is supported by four supporting frames 19, the supporting frames 19 are fixedly installed on the equipment chassis 20, wheels 21 matched with tracks laid in the roadway are installed at four corners of the bottom of the equipment chassis 20, and locking devices are arranged on the wheels 21 and used for locking and fixing the wheels 21.
In the invention, the mud-water separation device 13 and the mud tank 14 are fixedly arranged on the equipment chassis 20.
The tower-type split-flow wet-type purification system designed by the invention can effectively split large air quantity, can effectively reduce the pressure of the purified air quantity in a single purification water tank 101, and the filter screen 9 arranged at the dust collection port 5 can preliminarily filter larger dust particles, so that the larger dust particles are prevented from blocking the through holes of the porous medium filter plate 109 in the purification water tank; meanwhile, the industrial ultrasonic cleaning principle is transplanted and innovated to the wet dust removal field, the cleaning vibration plate 107 in the cleaning water tank 101 and the ultrasonic transducer 108 arranged on the porous medium filter plate 109 jointly act, under the action of ultrasonic waves, the pre-filtered dust-containing air flow overflows from the unevenly arranged air outlet pipes 105 at the bottom of the cleaning water tank 101 and rises from the bottom in the form of dust-containing bubbles, and the dust-containing bubbles are continuously broken by utilizing the ultrasonic action and the porous medium filter plate 109 is cleaned, so that the purposes of improving the dust removal efficiency and realizing self cleaning in the cleaning water tank 101 are achieved.
The invention also provides an ultrasonic tower type split flow wet dust removal method, which comprises the following steps:
step one: the dust removing system is assembled by each device, the explosion-proof electric control system 11 is opened, the axial-flow negative pressure fan 7 is operated, so that a negative pressure state is formed in the box body 10, the resistance of the liquid level of the purifying water tank 101 in the purifying system 1 is overcome, and dust-containing wind flow of a tunneling working face enters the rigid air inlet cylinder 4 through the dust collection opening 5 and the filter screen 9 under the action of negative pressure.
Step two: under the filtering action of the filter screen 9, larger-particle dust is filtered by the filter screen 9 and slides along the inclined air duct surface, and the filtered dust-containing air flow moves downwards to the diversion air inlet pipe 104 in the purification system 1 along the rigid air inlet duct 4, and the total air inlet flow is divided into three paths to enter the purification water tank 101 and be mixed with water.
Step three: the dust-containing air flow entering the inside of the purifying water tank 101 overflows from the unevenly arranged air outlet pipe 105 and is mixed with water, the dust-containing air bubbles rise in the water, the ultrasonic transducer 108 in the cleaning vibration plate 107 at the bottom of the purifying water tank 101 converts the electric signal into high-frequency vibration under the action of the high-frequency electric signal generated by the ultrasonic generator in the explosion-proof electric control system 11, the surface of the cleaning vibration plate 107 is driven to vibrate and is transmitted into the cleaning liquid in the purifying water tank 101, a large amount of cavitation bubbles are generated by the cleaning liquid under the high-frequency vibration, after the rising dust-containing air bubbles are contacted with the cavitation bubbles, the high-energy cavitation bubbles break the dust-containing air bubbles at the breaking moment, the broken air bubbles are fully contacted with the water, the respiratory dust in the air bubbles is effectively removed, and the larger dust-containing air bubbles are broken into smaller dust-containing air bubbles;
the smaller dust-containing bubbles pass through the porous medium filter plate 109 in the rising process, and the dust-containing bubbles are further divided in the process of passing through the porous medium filter plate 109 due to the smaller pore diameter of the porous medium filter plate 109, in addition, most dust particles can be attached to the surface of the porous medium filter plate 109 in the process of contacting the porous medium filter plate 109, and the dust attached to the pore diameter of the porous medium filter plate 109 is combined with the micro vibration of the filter plate by the ultrasonic transducer 108 arranged on the porous medium filter plate 109 under the cleaning effect of the hollow bubbles of water, so that the inside of the pore diameter of the porous medium filter plate 109 is kept clean, and the continuous purifying effect on wind flow is improved.
Step four: under the purification action of the purification system 1, mineral dust in dust-containing air flow is purified and remains in water, and after the purified air flow is cooled and dehumidified through the heat dissipation condensation grid 18, the air flow cleaned through the process is discharged into a working area at the rear part of a roadway through the air outlet cylinder 6.
Further, as a preferred embodiment of the present invention, during the operation of the apparatus, the circulating water replenishing pipe 102 in the purifying system 1 continuously replenishes water in the purifying water tank 101, when the liquid level in the purifying water tank 101 is higher than the upper portion of the circulating water outlet pipe 103, water in the purifying water tank 101 flows out through the circulating water outlet pipe 103 and enters the purifying water tank 101 at the next stage, sewage flowing out from the circulating water outlet pipe 103 of the purifying water tank 101 at the last stage enters the lower mud-water separation system after circulating in the purifying system 1, mud is separated by the mud-water separation device 13, mud is compressed and discharged to the mud tank 14 through the sewage drainage channel, purified water is circulated to the purifying system 1 in the tank 10 through the circulating water return pipe 16 and the circulating water replenishing pipe 102, and the continuous and automatic circulation function of the apparatus is achieved.
Furthermore, the electromagnetic three-way valve 17 controlled by the control system is externally connected with the water supplementing pipe 12, so that the stable liquid level of the water tank in the equipment can be ensured, and the water tank 101 of the purification system suspended by the four balance slings can be ensured to be always in a horizontal state under the condition of uneven equipment ground, so that the highest dust removal efficiency is realized.
The invention provides an ultrasonic tower-type split wet dust collection system applied to a mine tunnel tunneling working face, which can effectively improve the purification treatment air quantity of the dust collection system under the condition of not increasing resistance by utilizing a tower-type split structure, can divide the air flow, reduce the resistance of equipment, and can realize the division of bubbles and increase the contact area and improve the dust collection efficiency by an irregular, small-aperture and high-through-hole-rate porous medium filter plate 109 arranged in a purification system 1; simultaneously, the principles of ultrasonic cavitation and ultrasonic mechanical vibration are utilized, and two working principles of ultrasonic waves are adopted in design: cavitation bubbles generated by ultrasonic cavitation can crush rising dust-containing bubbles on one hand, and can clean a mud layer attached in the porous medium filter plate 109 on the other hand, so that the dust removal efficiency and continuous operation of dust removal equipment are improved, and ultrasonic mechanical vibration can realize micro-amplitude high-frequency vibration of the filter plate, so that mud is prevented from being attached to the inner wall of the aperture of the filter plate; moreover, the system can realize the cyclic utilization of water resources and the self-cleaning of the inside of the purified water tank 101, thereby saving the water resources and having high automation degree.
The cleaning vibration plate 107 in the purification system 1 can effectively convert electric energy into mechanical energy, micro-amplitude high-frequency vibration of the cleaning vibration plate 107 is transmitted into water to generate cavitation bubbles, rising bubbles and sludge attached to the aperture of the cleaning porous medium filter plate 109 can be smashed when the high-energy cavitation bubbles are broken, and the self-cleaning function of the inside of the equipment is realized; in addition, four ultrasonic transducers 108 sealed by a sealing box 110 are fixed on each porous medium filter plate 109, so that the porous medium filter plates 109 can be driven to realize micro-amplitude high-frequency vibration, and larger dust particles are prevented from blocking through holes of the porous medium filter plates 109. When the air flows out from the bottom of the purifying water tank 101 and moves upwards in the form of bubbles, the bubbles can be broken under the action of tiny cavitation bubbles, and part of dust in the bubbles can be absorbed by peripheral liquid at the moment of bubble breaking, so that the dust removing efficiency of the equipment is improved; dust-containing bubbles are rubbed with the inner surfaces of the pore diameters of the filter plates in the process of passing through the porous medium filter plates 109, so that dust particles in the bubbles are attached to the inner surfaces of the pore diameters of the filter plates, and the wind flow is further purified; and the heat dissipation condensing grid 18 designed at the air outlet effectively reduces the temperature and humidity of the purified air flow.
In the description of the present invention, it should be understood that the directions or positional relationships such as the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, in the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (7)
1. The ultrasonic tower type split-flow wet dust collection system comprises a return air dust collection system and a purification system, and is characterized by further comprising a water supplementing circulation system and a mud-water separation system, wherein the return air dust collection system is provided with a dust collection end and a return air end, and the purification system is arranged between the dust collection end and the return air end of the return air dust collection system;
the purifying system is a tower-type split-flow purifying system consisting of a plurality of groups of purifying devices, the purifying devices are provided with a cleaning liquid circulating part, a wind flow circulating part and a purifying part, and the mud-water separating system is connected with the outlet end of the purifying system;
the inlet end of the purifying system is connected with an air inlet pipe of the return air dust collection system, a plurality of groups of purifying devices are arranged in a tower type staggered manner, the plurality of groups of purifying devices are connected with the air inlet pipe, and the plurality of groups of purifying devices are communicated through the cleaning liquid circulating part;
the purifying device also comprises a purifying water tank, the purifying part is arranged in the purifying water tank, and the purifying part is provided with an ultrasonic cleaning component consisting of a cleaning vibration plate and a plurality of ultrasonic transducers;
a filtering component is further arranged in the purifying water tank, the filtering component is arranged at the upper end of the purifying part, and the upper end of the filtering component is connected with an ultrasonic transducer;
the cleaning solution circulating part is provided with a circulating water supplementing pipe and a circulating water outlet pipe, and the circulating water supplementing pipe is connected with the water supplementing circulating system; the air flow circulating part is provided with a diversion air inlet pipe, the diversion air inlet pipe is provided with a horizontal part, the horizontal part is arranged at the upper end of the purifying part, and the horizontal part is provided with a plurality of air outlet holes;
the both sides of horizontal portion are connected with the outlet duct that a plurality of parallel to each other set gradually, and the outlet duct sets up with horizontal portion mutually perpendicular, and the interval of the outlet duct of adjacent setting reduces gradually from left to right to a plurality of air vent has been seted up on the outlet duct.
2. The ultrasonic tower type split flow wet dust collection system according to claim 1, wherein the dust collection system is further provided with a box body, the purification system is arranged inside the box body, a dust collection end and a return air end of the return air dust collection system are arranged outside the box body, and the bottom of the box body is connected with the mud-water separation system.
3. The ultrasonic tower type split flow wet dust collection system according to claim 1, wherein a dust collection end of the return air dust collection system is provided with a primary filter device, a return air end of the return air dust collection system is provided with a fan, and the dust collection end and the return air end are arranged at the top of a roadway through sliding parts.
4. The ultrasonic tower type split flow wet dust removal system according to claim 2, wherein an electric control system is connected to the side edge of the box body, a heat dissipation condensation component is arranged on the upper portion of the box body, and the bottom of the box body is connected with the moving component through a supporting component.
5. An ultrasonic tower type split wet dust removal method using the ultrasonic tower type split wet dust removal system according to any one of claims 1 to 4, wherein the dust removal method comprises the steps of:
1) Assembling each device of the dust removing system, and then operating an electric control system and a fan to enable the inside of the purifying system to form a negative pressure state, so that dust-containing airflow of a working surface enters the dust removing system through the return air dust collecting system under the action of negative pressure;
2) Under the filtering action of the primary filtering device, the dust with larger particles is filtered and falls off along the surface of the return air dust collection system, and the filtered dust-containing air flow is divided into multiple paths along a pipeline to enter the purifying system for mixing with cleaning liquid;
3) The method comprises the steps that after dust-containing air flow is mixed with cleaning liquid, the dust-containing air flow rises in the cleaning liquid in the form of dust-containing bubbles, a large amount of cavitation bubbles are generated under the action of an ultrasonic transducer, when the rising dust-containing bubbles are contacted with the cavitation bubbles, the high-energy cavitation bubbles break up the dust-containing bubbles at the moment of breaking, the broken bubbles are fully contacted with water, the larger dust-containing bubbles are broken up into smaller dust-containing bubbles, the smaller dust-containing bubbles pass through a filtering component in the rising process, and dust particles are attached to the surface of the filtering component;
4) The purified wind flow continuously rises, and after the temperature is reduced and dehumidified through a heat dissipation condensing part in the dust removal system, the clean wind flow is discharged into an operation area at the rear part of the roadway.
6. The ultrasonic tower type split flow wet dust removal method according to claim 5, wherein in the running process of the device, the cleaning liquid circulation part is used for continuously supplementing water for the cleaning water tank, when the liquid level in the cleaning water tank is higher than the upper part of the water outlet pipe, the cleaning liquid in the cleaning water tank flows into the next-stage cleaning water tank, and the final end is separated by the mud-water separation system, so that the cleaning liquid can be recycled.
7. Use of a dust removal system in a mine face, characterized in that it utilizes an ultrasonic tower split wet dust removal system according to any one of claims 1-4.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128388A (en) * | 1997-05-14 | 1999-02-02 | Matsushita Seiko Co Ltd | Electrostatic precipitation filter and electrostatic precipitator equipped with the same |
| CN106417227A (en) * | 2016-09-08 | 2017-02-22 | 江苏大学 | Air feeding system for air curtain type boom sprayer |
| CN110508084A (en) * | 2019-09-10 | 2019-11-29 | 邹淑芳 | A kind of ultrasonic Wet-type dust-removal fan of Chemical Manufacture |
| CN110665316A (en) * | 2019-10-30 | 2020-01-10 | 邳州亚联环保科技有限公司 | Environment-friendly equipment for filtering waste gas |
| CN211384197U (en) * | 2019-08-06 | 2020-09-01 | 江苏诚信达环保设备有限公司 | Bag type low-pressure pulse dust removal equipment |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6878186B2 (en) * | 2003-09-09 | 2005-04-12 | David Lloyd Neary | Pure vacuum swing adsorption system and apparatus |
| FR2916653B1 (en) * | 2007-06-01 | 2011-05-06 | Areva Np | METHOD FOR OPTIMIZING THE IONIC CONDUCTIVITY OF A CONDUCTIVE ION MEMBRANE |
| US8317901B2 (en) * | 2010-02-26 | 2012-11-27 | Empire Technology Development Llc | Nanoparticle filtration |
| CN201643918U (en) * | 2010-05-06 | 2010-11-24 | 周和平 | Wet type self-actuated water bath dust remover |
| EP2626529B1 (en) * | 2011-11-09 | 2015-10-21 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification device for internal combustion engine |
| CN202467840U (en) * | 2012-03-22 | 2012-10-03 | 安徽理工大学 | Pneumatic type high-expansion foam de-duster |
| CN106215658B (en) * | 2016-09-26 | 2019-05-03 | 深圳市东荣环保科技有限公司 | Exhaust gas Environmental-protecting treater |
| CN206483266U (en) * | 2017-01-23 | 2017-09-12 | 广西多得乐生物科技有限公司 | A kind of dust arrester on pulverizer |
| CN109432983B (en) * | 2018-11-30 | 2021-04-20 | 江门市佐敦环保科技有限公司 | Nitrogen oxide-containing tail gas treatment system |
| CN210772528U (en) * | 2019-09-17 | 2020-06-16 | 苏州百创达环保科技有限公司 | Air dust removal purifies environmental protection equipment |
| CN213101383U (en) * | 2020-08-10 | 2021-05-04 | 彰伦环保科技(上海)有限公司 | Use efficient washing tower |
| CN214319557U (en) * | 2020-11-03 | 2021-10-01 | 宿迁科村环保设备制造有限公司 | High-efficient ultrasonic dust collector |
| CN214075638U (en) * | 2021-07-16 | 2021-08-31 | 桐乡市恒丰漂染股份有限公司 | Printing and dyeing waste gas centralized treatment device |
| CN114307456A (en) * | 2021-12-14 | 2022-04-12 | 北京布鲁斯格环保科技有限公司 | Adjustable ultralow wet dust collector |
-
2022
- 2022-08-11 CN CN202210960066.XA patent/CN115414750B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128388A (en) * | 1997-05-14 | 1999-02-02 | Matsushita Seiko Co Ltd | Electrostatic precipitation filter and electrostatic precipitator equipped with the same |
| CN106417227A (en) * | 2016-09-08 | 2017-02-22 | 江苏大学 | Air feeding system for air curtain type boom sprayer |
| CN211384197U (en) * | 2019-08-06 | 2020-09-01 | 江苏诚信达环保设备有限公司 | Bag type low-pressure pulse dust removal equipment |
| CN110508084A (en) * | 2019-09-10 | 2019-11-29 | 邹淑芳 | A kind of ultrasonic Wet-type dust-removal fan of Chemical Manufacture |
| CN110665316A (en) * | 2019-10-30 | 2020-01-10 | 邳州亚联环保科技有限公司 | Environment-friendly equipment for filtering waste gas |
Non-Patent Citations (2)
| Title |
|---|
| Ultrasonic dewatering in minute holes;Masaya Takasaki;《2013 IEEE International Ultrasonics Symposium》;全文 * |
| 燃煤机组脱硫双塔及相关系统颗粒物脱除特征;廖永进等;《高校化学工程学报》;第第35卷卷(第第2期期);全文 * |
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