Disclosure of Invention
The application provides a wet cyclone dust collector to solve at least one technical problem among the above-mentioned technical problem.
The technical scheme adopted by the application is as follows:
the application provides a wet cyclone dust removal device, the dust removal device comprises a support frame, a humidifying dust remover and a mixed cyclone which are respectively arranged on the support frame, and an exhaust pipe which is positioned above the support frame and is provided with an air guide channel, wherein the humidifying dust remover, the mixed cyclone and the exhaust pipe are sequentially connected; the humidifying dust collector comprises a humidifying box and an atomizing part arranged on the humidifying box, and the humidifying box comprises an air inlet section and a transmission section vertical to the air inlet section; the gas inlet section is provided with a gas inlet, the side wall of the transmission section is provided with a gas outlet, and the input end and the output end of the mixed cyclone are respectively communicated with the gas outlet and the gas guide channel, so that the gas is subjected to multistage filtration by virtue of the atomization effect of the atomization piece and the rotational flow effect of the mixed cyclone in the flowing process.
The wet cyclone dust collector in the application also has the following additional technical characteristics:
the humidifying box further comprises a dust falling cavity and a guide plate arranged in the dust falling cavity, wherein the guide plate can divide the dust falling cavity into a first guide channel and a second guide channel, so that gas is formed into an S-shaped flow path in the dust falling cavity.
The guide plate is an L-shaped baffle, a gap is reserved between the bending section of the L-shaped baffle and the side wall where the air inlet is located, and the extending section of the L-shaped baffle is parallel to the side wall of the conveying section, so that the flow rate of the first guide passage is larger than that of the second guide passage.
The dust removal device also comprises a driving piece and a mud-water separation box arranged at the bottom of the support frame, and the humidifying box and the mixed cyclone are respectively connected with the mud-water separation box so as to realize the collection of dirt; the mud-water separation tank, the driving piece and the humidifying tank are sequentially connected with one another so as to realize internal circulation of a dust removing medium in the dust removing device.
The lateral wall of the transmission section corresponding to the second guide channel is provided with a sewage discharge hole, and the bottom wall of the humidifying box inclines from high to low from one side far away from the sewage discharge hole to one side close to the sewage discharge hole.
The mixed cyclone comprises a primary cyclone and a secondary cyclone, the input end and the output end of the primary cyclone are respectively communicated with the gas outlet and the input end of the secondary cyclone, and the output end of the secondary cyclone is communicated with the gas guide channel, so that the primary cyclone and the secondary cyclone form a group of cyclone units.
The hybrid cyclone comprises a plurality of groups of cyclone units connected in parallel, and the height of the secondary cyclone in any group of the cyclone units is larger than that of the primary cyclone.
The longitudinal section of the air inlet section is L-shaped, the support frame is a U-shaped frame, and the notch of the L-shaped air inlet section coincides with the notch of the U-shaped frame, so that the humidifying box and the support frame enclose to form a travelling crane channel.
Air inlet department is provided with the cover that induced drafts, just it can dodge to induced draft cover is last be provided with the portion of dodging of driving passageway.
The number of the air inlets is multiple, and the air inlets are uniformly distributed along the L-shaped air inlet section; the air suction cover is multiple, and the multiple air suction covers correspond to the multiple air inlets respectively.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the wet cyclone dust removal device provided by the invention is provided with the humidifying dust remover and the mixed cyclone, dust-containing gas enters the dust removal device and sequentially passes through the humidifying dust remover and the mixed cyclone, mist sprayed by an atomizing part in the humidifying dust remover can capture dust particles, the weight of the dust is increased, part of large-particle dust can be settled, and dust particles which cannot be settled enter the mixed cyclone. Wherein, the humidifying dust remover still includes air inlet section and transmission section, and the flow path of dust has been lengthened in the setting of transmission section, can reduce the flow speed of dust for the dust can obtain comparatively abundant moist, has both improved humidifying dust remover's settlement efficiency, has also improved the centrifugal dust collection efficiency of hybrid swirler. This application combines together humidifying dust remover and swirler, the realization is carried out the multistage filtration to the dust, and humidifying dust remover can enough subside the dust, also can make the dust that can't be subsided caught by the fog, and then increase its holistic weight, so that the dust that can't be subsided can be clear away through hybrid swirler, and then the dust collection efficiency of hybrid swirler has been improved, the filtration of the dust that the diameter is below 5 mu m has been realized, the dust collection efficiency in the tunnel has been improved greatly, and then the construction environment in the tunnel has been optimized.
2. As an optimal implementation mode of this application, be provided with the deflector in the dust fall chamber of humidification case, the deflector can be separated the dust fall chamber for two passageways, can make dusty gas get into the dust fall chamber after must pass through first direction passageway and second direction passageway in proper order, reentrant hybrid swirler, be formed with S type flow path, this kind of circulation route that sets up the mode and lengthened the dust greatly, the circulation time of dust in the dust fall chamber has been lengthened, can reduce the circulation speed of dust, make the dust fully humidified, and give the abundant time of dust and subside, the settlement efficiency of humidification dust remover has both been improved, also make originally unable by the filterable partial dust of swirler catch by the fog, improve its whole weight, make it can be filtered, and then the dust collection efficiency of hybrid swirler has been improved greatly.
3. As a preferred embodiment of this application, humidification case still is equipped with the blowoff hole, can make to subside and collect the dirty discharge hole that passes through of low department in the second direction passageway and flow, and humidification case's diapire is from keeping away from a lateral direction of blowoff hole is close to one side of blowoff hole is by high to low slope, and consequently the dirty that subsides and get off can collect blowoff hole department, the discharge of water and dirty of being convenient for through the action of gravity.
4. As a preferred embodiment of the present application, the hybrid cyclone may be configured as a connection manner in which a plurality of cyclones are connected in series and parallel, specifically, a primary cyclone and a secondary cyclone are connected in series to form a set of cyclone units, the fully humidified dust can sequentially pass through the primary cyclone and the secondary cyclone, part of the moisture-containing dust is filtered and discharged by the primary cyclone, and other dust enters the secondary cyclone for re-swirling, and this configuration can make up for the disadvantage that the height of the cyclone is limited due to insufficient height of the tunnel, and improve the dust removal efficiency of the cyclone; in addition, this application still is provided with parallel connection's multiunit swirler unit for multiunit swirler unit removes dust simultaneously, has further improved dust collection efficiency.
5. As an optimal implementation mode of this application, can also be provided with the cover that induced drafts at the air inlet, and the preferred trumpet-shaped of selecting for use, the trumpet-shaped cover that induced drafts can increase dust absorption area, covers whole tunnel section as far as possible, can further improve dust collection efficiency.
6. As a preferred embodiment of this application, dust collector can also set up the driving piece, and the driving piece is connected with mud-water separation case and humidification case respectively, can realize the cyclic utilization of humidifying medium, resources are saved and the cost, can avoid sewage discharge and then pollute the external environment simultaneously.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those illustrated in the drawings, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present application, as shown in fig. 1 to 5, a wet cyclone dust collector is provided, the dust collector includes a supporting frame 1, a humidifying dust collector 2 and a hybrid cyclone 3 respectively disposed on the supporting frame 1, and an exhaust duct 4 located above the supporting frame 1 and having an air guide channel, wherein the humidifying dust collector 2, the hybrid cyclone 3 and the exhaust duct 4 are sequentially connected; the humidifying dust collector 2 comprises a humidifying box 21 and an atomizing part arranged in the humidifying box 21, wherein the humidifying box 21 comprises an air inlet section 211 and a transmission section 212 vertical to the air inlet section 211; the air inlet section 211 is provided with an air inlet, the side wall of the transmission section 212 is provided with an air outlet, and the input end and the output end of the hybrid cyclone 3 are respectively communicated with the air outlet and the air guide channel, so that the gas can be filtered in multiple stages by means of the atomization effect of the atomization piece and the rotational flow effect of the hybrid cyclone 3 in the flowing process.
Specifically, the dust-containing gas enters the dust removal device through the gas inlet, and firstly enters the humidifying dust remover 2, the humidifying dust remover 2 comprises a humidifying box 21 and an atomizing part located in the humidifying box 21, and the atomizing part can be used for continuously humidifying the dust-containing gas entering the humidifying box 21, so that the weight of dust particles is increased; the arrangement of the conveying section 212 can lengthen the flow path of the dust-containing gas, prolong the flow time of the dust-containing gas, reduce the flow speed, and sufficiently humidify the dust-containing gas, so that part of large-particle dust therein has sufficient time to settle to the bottom of the humidifying box 21 along with the liquid, and other dust particles can enter the mixed cyclone 3 after being sufficiently humidified. After the humidified dust enters the mixed cyclone 3, the mixed cyclone 3 performs cyclone filtration on the humidified dust, most of the dust can be collected to the bottom of the mixed cyclone 3 due to the large volume and the increased weight of the dust after humidification, part of the respirable dust with the aerodynamic diameter of less than 5 μm can also be collected to the mixed cyclone 3 through the centrifugal action of the mixed cyclone 3, and the filtered clean gas is discharged out of the dust removal device through the gas guide channel. This application through inciting somebody to action humidification dust remover 2 with the mode that hybrid swirler 3 combined together has realized the multistage filtration to dust in the tunnel, has improved dust collection efficiency greatly.
In addition, it should be noted that, in an embodiment as shown in fig. 1, exhaust pipe 4 can be connected with fan 9, fan 9 with the tail end of exhaust pipe 4 is connected, just exhaust pipe 4 with fan 9 forms the U-shaped structure, and this kind of shape structure is convenient to be connected hybrid swirler 3 and will clean gas discharge dust collector, but this application is right the shape and the material of exhaust pipe 4 do not all do the injecions, specifically can choose for use according to the interior specific condition in the tunnel, for example its shape can also choose for use L type or S type, and steel, alloy etc. can be chooseed for use to the material.
As a preferred embodiment of the present application, as shown in fig. 2, 4 and 5, the humidifying box 21 may further include a dust settling chamber and a guide plate 213 disposed in the dust settling chamber, and the guide plate 213 may divide the dust settling chamber into a first guide passage 214 and a second guide passage 215 so that the gas forms an S-shaped flow path in the dust settling chamber.
As a preferred embodiment of the present application, as shown in fig. 2, 4 and 5, it should be noted that in fig. 4, the top cover of the humidifying box 21 is omitted for convenience of describing a specific position of the guide plate 213 in the dust settling chamber. The guide plate 213 may be an L-shaped baffle, a gap is left between the bending section 216 of the L-shaped baffle and the sidewall of the air inlet, and the extension section 217 of the L-shaped baffle is parallel to the sidewall of the transmission section 212, so that the flow rate of the first guide passage 214 is greater than the flow rate of the second guide passage 215.
Specifically, a guide plate 213 is arranged in the dust settling chamber of the humidifying box 21, the guide plate 213 is connected with the bottom wall of the humidifying box 21, and there is no gap between the guide plate 213 and the bottom wall, so as to ensure that the flow path of the gas conforms to the preset S-shaped flow path, the guide plate 213 can divide the dust settling chamber into two channels, so that the dust-containing gas can enter the dust settling chamber and must sequentially pass through a first guide channel 214 and a second guide channel 215, and then enter the hybrid cyclone 3, and an S-shaped flow path is formed, the arrangement method greatly lengthens the flow path of the dust in the humidifying box 21 with limited space, prolongs the flow time of the dust in the humidifying box 21, enables the dust to be fully humidified, and gives the large particle dust sufficient time for settling, in an embodiment shown in fig. 4-5, an L-shaped baffle plate is selected, and the bending section 216 of the L-shaped baffle is parallel to the side wall where the air inlet is located, and a gap is left between the bending section and the side wall, and the extension section 217 of the L-shaped baffle is parallel to the side wall of the transmission section 212, so that the dust can form an S-shaped path in the dust settling cavity.
As a preferred embodiment of the present application, the dust removing device further includes a driving member 7 and a mud-water separating box 8 disposed at the bottom of the supporting frame 1, and the humidifying box 21 and the hybrid cyclone 3 are respectively connected to the mud-water separating box 8 to collect the dirt; the mud-water separation tank 8, the driving piece 7 and the humidifying tank 21 are sequentially connected to realize internal circulation of a dust removing medium in the dust removing device.
As a preferred embodiment of the present application, as shown in fig. 2 to 5, a drain hole 218 is opened on a side wall of the conveying section 212 corresponding to the second guide channel 215, and a bottom wall of the humidifying box 21 is inclined from a side far from the drain hole 218 to a side close to the drain hole 218 from high to low.
Specifically, in an embodiment as shown in fig. 4, the humidifying box 21 is provided with a drain hole 218 which can drain the dirt in the second guide channel 215 out of the humidifying box 21, the drain hole 218 is arranged at the bottom of the side wall of the conveying section 212 corresponding to the second guide channel 215, and since the bottom wall of the humidifying box 21 is inclined from high to low from the side far from the drain hole 218 to the side close to the drain hole 218, the position is at the lowest position of the second guide channel 215, which facilitates the drainage of the dirt; and the sewage draining hole 218 can be connected with a sewage draining pipe 219, and the other end of the sewage draining pipe 219 is connected with the mud-water separation box 8 so as to collect dirt.
In addition, the mud-water separation tank 8 is further connected to the air inlet section 211, as shown in fig. 2-4, the bottom end of the inner wall of the air inlet section 211 corresponding to the air inlet is the lowest end of the first guide channel 214, so that the dirt settled in the first guide channel 214 can flow into the mud-water separation tank 8 through the air inlet section 211, the bottom of the hybrid cyclone 3 is also connected to the mud-water separation tank 8, and the filtered dirt in the hybrid cyclone 3 can also flow into the mud-water separation tank 8; the mud-water separation tank 8 is also connected with the driving piece 7, and the driving piece 7 can drive the liquid in the mud-water separation tank 8 to enter the humidifying tank 21 again, so that the internal circulation of the dust removing liquid in the dust removing device is realized. In addition, a filtering piece can be arranged in the mud-water separation box 8, so that the dirt can be filtered after passing through the filtering piece, and cleaner dust removal liquid can be obtained for recycling. It should be noted that the present application does not limit the specific structure of the driving member 7, and the driving member 7 may be a water pump or the like.
As a preferred embodiment of the present application, as shown in fig. 2, the hybrid cyclone 3 includes a primary cyclone 31 and a secondary cyclone 32, and an input end and an output end of the primary cyclone 31 are respectively communicated with the air outlet and an input end of the secondary cyclone 32, and an output end of the secondary cyclone 32 is communicated with the air guide channel, so that the primary cyclone 31 and the secondary cyclone 32 constitute a set of cyclone units 30.
As a preferred embodiment of the present application, the hybrid cyclone 3 comprises a plurality of parallel cyclone units 30, and the height of the secondary cyclone 32 in any one cyclone unit 30 is greater than the height of the primary cyclone 31.
In an embodiment as shown in fig. 2, the hybrid cyclone 3 may be arranged as a plurality of cyclones connected in series and parallel, specifically, the primary cyclone 31 and the secondary cyclone 32 are connected in series to form a set of cyclone units 30, and after the humidified dust is discharged from the humidifying dust collector 2, enters the primary cyclone 31 through the input end of the primary cyclone 31, part of the humidified dust can be filtered in the primary cyclone 31 by centrifugal action, the other humidified dust enters the secondary cyclone 32 for secondary filtration, and since the dust is fully humidified in the mixing humidifier, therefore, most of dust including respiratory dust with the part of aerodynamic diameter less than 5 mu m can be filtered, and the filtered clean gas is then discharged out of the dust removal device through the air guide channel. The arrangement mode of the plurality of cyclones in series solves the problem that the height of the cyclones is insufficient due to the limited height of the tunnel, so that the dust removal efficiency is reduced to a certain extent; in addition, in the preferred embodiment provided by the present application, a plurality of sets of cyclone units 30 connected in parallel are provided, and the plurality of sets of cyclone units 30 can perform dust removal simultaneously without affecting each other, so as to further improve the dust removal efficiency.
It should be noted that the number of the cyclones connected in series is not limited in the present application, and may be selected according to actual situations, and as shown in the embodiment of fig. 2, two cyclones are used in series, or three or more cyclones are used in series, and the number of the cyclone units 30 is not limited, as shown in an embodiment of fig. 2, four groups of cyclone units 30 are used, and in addition, one or more cyclone units may be used.
As a preferred embodiment of the present application, the longitudinal section of the air intake section 211 is L-shaped, the support frame 1 is a U-shaped frame, and the notch of the L-shaped air intake section 211 coincides with the notch of the U-shaped frame, so that the humidification chamber 21 and the support frame 1 enclose to form the traveling crane passage 5.
Specifically, as shown in fig. 1, the supporting frame 1 is a U-shaped frame, is erected on the ground of the tunnel, and is formed with a traffic lane, so that the dust removal device can remove dust efficiently on the basis without affecting the normal operation of the tunnel. The longitudinal section of the air inlet section 211 is L-shaped, and the L-shaped gap of the air inlet section coincides with the gap of the U-shaped frame, so that the humidifying box 21 is more stable, and a driving channel is not affected. In addition, the transmission section 212 is fixed above the travelling crane passage 5, the exhaust pipe 4 is fixed above the whole support frame 1, and the hybrid cyclone 3 is fixed at an included angle formed by the air inlet section 211 and the transmission section 212 and is fixed in the support frame 1. This kind of mode of setting makes support frame 1 can the stable support each structure improves dust collector's stability.
As a preferred embodiment of this application, air inlet department is provided with air suction cover 6, just be provided with on the air suction cover 6 and dodge the portion of dodging of traffic passageway 5.
As a preferred embodiment of the present application, the number of the air inlets is multiple, and the multiple air inlets are uniformly distributed along the L-shaped air inlet section 211; the air suction hood 6 is provided with a plurality of air suction hoods 6, and the air suction hoods 6 correspond to the air inlets respectively.
Specifically, as shown in fig. 1, in an embodiment that the application provided, the air suction hood 6 is set to be horn type, preferably, the air inlet is just to the tunnel working face, then the coverage area to the working face can be enlarged to a great extent to the setting of horn type for when the tunnel operation, dust collector can remove dust in real time.
Where not mentioned in this application, this may be achieved using or taking advantage of existing technology.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.