CN211601019U - Air supply column for dust control device and dust control device with same - Google Patents
Air supply column for dust control device and dust control device with same Download PDFInfo
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- CN211601019U CN211601019U CN202020227076.9U CN202020227076U CN211601019U CN 211601019 U CN211601019 U CN 211601019U CN 202020227076 U CN202020227076 U CN 202020227076U CN 211601019 U CN211601019 U CN 211601019U
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Abstract
The utility model discloses an air supply column for a dust control device and a dust control device with the same, wherein the air supply column for the dust control device comprises a columnar body, and the outer peripheral wall of the columnar body is provided with an air supply groove extending along the length direction; the air outlet frame is arranged around the peripheral edge of the air supply groove and extends outwards perpendicular to the peripheral edge of the air supply groove; wind-guiding blade, a plurality of wind-guiding blade along the length direction interval of air-out frame locate in the air-out frame, every wind-guiding blade includes first extension section and the second extension section that links to each other with first extension section, first extension section along horizontal direction downwardly extending and with the axis of column body between form first default contained angle beta, second extension section along horizontal direction upwardly extending and with the horizontal direction formation second default contained angle gamma, wherein, 20 is no less than 25 beta and 20 is no less than 25 gamma. According to the utility model discloses a small in size that is used for air supply column of accuse dirt device simple structure, and the air current of production is stable, the deflexion is little, can realize the accuse dirt device.
Description
Technical Field
The utility model belongs to the technical field of the clean technique of dust that keeps apart fast and the collection to openness or can't implement fixed sealed dust source and specifically relates to a accuse dirt device that is used for air supply post of accuse dirt device and has it.
Background
The open dust source is dispersed, large in quantity and large in discharge total amount, and the required collecting and purifying equipment is various. The existing dust source cannot adopt a fixed and sealed dust source, the dust is seriously diffused outwards, the health of operating personnel and the cleanliness of a production workshop are greatly influenced, and an effective technology for quickly isolating and collecting does not exist at present.
The existing dust isolation and collection technologies mainly comprise: a ventilation cabinet type dust collection technology, an air curtain dust separation technology, a rotary air curtain dust collection technology and the like.
In the fume hood type dust collection technology, wind current is distributed on the whole section of a fume hood, the dust collection wind speed at the edge of the fume hood is low, the dust collection wind speed is low, and dust is seriously escaped. The dust collection mode belongs to single suction dust collection, the required dust collection air volume is large, the dust collection efficiency is not high, and dust is seriously escaped outwards.
The air curtain dust-isolating technology mainly adopts a jet flow air curtain wall to carry out soft sealing on a single plane, prevents dust from penetrating through a plane space, and is matched with suction air flow to finish dust collection. The mode is usually arranged in a semi-closed dust generating source which can be implemented and used for improving the dust collecting efficiency, but the phenomenon of dust escape caused by poor sealing exists at the joint part of the air curtain and the fixed side wall.
A rotary air curtain dust collecting device adopts a plurality of air curtain generators which are connected end to form a closed air curtain sealed space, isolate dust from escaping outwards, and then assist with suction airflow to implement quick transfer and collection of the dust. The device adopts the mode that the active isolation combines together with passive suction, can form rotatory suction air current, reaches the purpose of high-efficient dust collection. However, in the prior art, due to the impact of the deflected jet flow air curtain stroke on the fixed platform, the flow form of air flow in the air curtain sealed space can be disturbed, so that the problems of unstable performance, high dispersion degree and large deflection of the air curtain generator are solved, and the collecting efficiency is influenced. Moreover, the air curtain generating device of the existing rotary air curtain dust collecting device has larger volume and is not suitable for the working environment with strict limitation on the volume. In addition, the overall size of the existing rotary air curtain dust collecting device is generally as follows: 1m × 1m × 1m (length × width × height) cannot meet the needs of large-size dust collecting apparatuses.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an air supply column for a dust control device, which has a simple structure, stable air flow and small deflection, and can realize the volume miniaturization of the dust control device.
The utility model also provides an accuse dirt device of the air supply post that has above-mentioned and is used for accuse dirt device.
According to the utility model discloses an air supply post for dust control device of first aspect embodiment includes: the air supply device comprises a columnar body, a fan and a fan, wherein the columnar body is of a hollow structure with an opening at the top, the opening at the top of the hollow structure is suitable for being connected with an air supply system, and an air supply groove extending along the length direction is formed in the outer peripheral wall of the columnar body; the air outlet frame is arranged around the peripheral edge of the air supply groove and extends outwards perpendicular to the peripheral edge of the air supply groove; wind guide vane is a plurality of wind guide vane follows the length direction interval of air-out frame is located in the air-out frame, every wind guide vane includes first extension section and with the continuous second extension section of first extension section, first extension section along horizontal direction downwardly extending and with form first predetermined contained angle beta between the axis of column body, second extension section along horizontal direction upwardly extending and with the horizontal direction formation second predetermined contained angle gamma, wherein, 20 is less than or equal to beta and is less than or equal to 25 and 20 is less than or equal to gamma and is less than or equal to 25.
According to the air supply column for the dust control device of the embodiment of the utility model, through setting the specific structure of the air supply column, the first preset included angle beta between the first extending section of the air guide blade in the air supply column and the axis of the column body and the second preset included angle gamma between the second extending section of the air guide blade and the horizontal direction are set to be more than or equal to 20 degrees and less than or equal to 25 degrees and less than or equal to 20 degrees and less than or equal to 25 degrees, compared with the arrangement of the angle of the air guide blade in the related technology, the structure can be simplified, the manufacture is convenient, the air flow entering the air outlet frame through the air supply groove can be realized, the air flow in the air curtain formed by the air curtain generating device can be stable after the air guide of the air guide blade is guided, the deflection of the air curtain is small, the dispersion degree is low, the impact of the jet air curtain on the adjacent air supply column caused by the deflection of the air curtain is effectively avoided, the flow form of, thereby being beneficial to the isolation and collection of dust.
According to some embodiments of the invention, the first extension and the second extension are in smooth transition.
According to the utility model discloses a some examples, it is a plurality of wind-guiding blade follows the length direction spaced-apart equipartition of air-out frame in order to incite somebody to action air-out frame separate for a plurality of with the air supply passageway that the air supply groove switched on, and a plurality of arbitrary adjacent two are in among the wind-guiding blade the length direction's of air-out frame maximum spacing is d, and 30mm is less than or equal to d and is less than or equal to 60 mm.
According to some examples of the utility model, the column body is the barrel, the diameter of barrel is D, and 35mm is less than or equal to D and is less than or equal to 190mm, the length of barrel is H, and 1000mm is less than or equal to H and is less than or equal to 3000mm, go out the fan frame along the perpendicular to the periphery of air supply groove is along outside extension height for H, and 10mm is less than or equal to H and is less than or equal to 30 mm.
According to the second aspect of the present invention, the dust control device comprises an air supply system and an air suction system; the air curtain generating device comprises at least three air supply columns which are arranged at intervals in an annular mode along the circumferential direction, each air supply column is connected with the air supply system and is constructed to supply air to the annular inner portion formed by the at least three air supply columns at the same jet velocity v according to a preset jet angle alpha, and the air supply columns are the air supply columns for the dust control device according to the embodiment of the first aspect of the invention; the air suction cover is arranged at the top of the air curtain generating device, an air suction opening is formed in the middle of the air suction cover, and the air suction system is communicated with the air suction opening to suck air along an annular center formed by the at least three air supply columns.
According to the utility model discloses dust control device, through adopting according to the utility model discloses an air supply post for dust control device of first aspect embodiment, compare in the rotatory air curtain dust arrester installation in the correlation technique, both can simplify the structure, be convenient for make, can make again get into the air current in the air-out frame through the air supply groove, can make air current stable in the air curtain that air curtain generating device formed after the wind-guiding blade water conservancy diversion, the air curtain squint nature is little and dispersion degree is low, effectively avoided because the air curtain skew causes the impact of efflux air curtain to adjacent air supply post, disturb the mobile form of air current, influence the drawback of collecting efficiency, thereby do benefit to the isolation and the collection of dust. In addition, the overall space occupation of the dust control device can be effectively reduced while the collecting efficiency is ensured.
According to some embodiments of the invention, the predetermined jet angle α satisfies: alpha is more than or equal to 10 degrees and less than or equal to 20 degrees.
According to some examples of the invention, the length of the air supply duct is x, and when x =1m, the jet velocity v of each air supply column satisfies: v is more than or equal to 5m/s and less than or equal to 6.8m/s, and when x =2m, the jet velocity v of each air supply column satisfies the following conditions: v is more than or equal to 10.8m/s and less than or equal to 12.5m/s, and when x =3m, the jet velocity v of each air supply column satisfies the following conditions: v is more than or equal to 26.8m/s and less than or equal to 30.2 m/s.
According to some examples of the invention, the jet velocity of each of the air supply columnsvSatisfies the following conditions:v=2.6 e0.78xwherein x is the length of the air supply groove, and e is a natural constant.
According to some examples of the utility model, the air curtain generating device includes four along circumference spaced arrangement the air supply post, the air supply post is in proper order the line along circumference direction and forms the rectangle structure.
According to some examples of the invention, the ratio of the amount of air sucked by the air suction hood to the total amount of air supplied by the at least three air supply columns is 0.8-1.0.
According to some examples of the utility model, the cover that induced drafts forms and leaks hopper-shaped structure, the cover that induced drafts is equipped with at least three mounting hole, at least three mounting hole with at least three air supply post one-to-one links to each other, and every the air supply post passes behind the mounting hole with air supply system links to each other.
According to some examples of the invention, the cross-sectional area of the air inlet is S, 25000mm2≤S≤80400mm2The ground clearance of the air suction cover is H ', H' is more than or equal to 1000mm and less than or equal to 3000 mm.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a wind post for a dust control device according to some embodiments of the present invention;
fig. 2 is a schematic view of a dust control device according to some embodiments of the present invention;
fig. 3 is a top view of a dust control device according to some embodiments of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
Reference numerals:
a dust control device 100;
an air supply column 10; a columnar body 11; a top opening 111;
an air outlet frame 12; air guide blades 13; an air supply passage 14; a first extension 131; a second extension 132;
an air supply system 20; an air suction system 30;
an air suction hood 40; and a mounting hole 41.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
An air supply column 10 for a dust control device according to an embodiment of the present invention is described below with reference to the accompanying drawings, wherein the dust control device 100 is mainly applied to the dust source which is open or cannot implement fixed sealing for rapid separation and collection.
As shown in fig. 1 to 4, an air supply column 10 for a dust control device according to an embodiment of the present invention includes a cylindrical body 11, an air outlet frame 12, and air guide blades 13.
The columnar body 11 is a hollow structure, and the top opening 111 and the peripheral wall are provided with an air supply groove which extends along the length direction (such as the vertical direction in fig. 1) and is penetrated along the wall thickness direction, for example, in the example shown in fig. 1, the columnar body 11 is a cylinder with one open end and the other closed end, the air supply groove is a rectangular groove, the rectangular groove is provided on the peripheral wall of the columnar body 11, and the columnar body 11 can be communicated with the air supply system 20 through the top opening 111, so that the air supply system 20 can supply air into the hollow cavity of the columnar body 11 and then supply air through the air supply groove.
The air-out frame 12 is arranged around the periphery of the air-supplying groove and extends outwards along the vertical direction of the periphery of the air-supplying groove, namely the air-out frame 12 is connected with the periphery of the air-supplying groove and protrudes out of the periphery of the air-supplying groove along the vertical direction to form an air-supplying passage, a plurality of air-guiding blades 13 are arranged in the air-out frame 12 at intervals along the length direction (the up-down direction shown in fig. 1 and 3) of the air-out frame 12 and extend along the height direction (the direction shown by the line B-B in fig. 4) of the air-out frame 12, namely the extending direction of the air-out frame 12 relative to the periphery of the air-supplying groove, each air-guiding blade 13 comprises a first extending section 131 and a second extending section 132, one end of the first extending section 131 is adjacent to the air-supplying groove and the other end of the first extending section 131 is inclined downwards along the horizontal direction (the direction shown by the line B-B in fig. 4) and forms a first preset included angle beta with the, and the other end of the second extension segment 132 extends upwards along the horizontal direction at a second preset included angle γ in an inclined manner, and β and γ are respectively set between 20 ° and 25 °, when the angles of β and γ are set too large, for example, β and γ both exceed 25 °, the flow guiding effect is affected, and thus the formation of the air curtain is not facilitated, and when the angles of β and γ are set too small, for example, β and γ both are less than 5 °, the generated air curtain is inclined, so that the jet air curtain impacts the fixed platform, the flow form of the air flow is disturbed, and the collecting efficiency is affected.
Therefore, according to the air supply column 10 for the dust control device of the embodiment of the present invention, by setting the specific structure of the air supply column 10, the first preset included angle β between the first extending section 131 of the air guide blade 13 in the air supply column 10 and the axis of the columnar body 11 and the second preset included angle γ between the second extending section 132 of the air guide blade 13 and the horizontal direction are set to be not less than 20 degrees and not more than 25 degrees and not more than 20 degrees and not more than 25 degrees, compared with the arrangement of the angles of the air guide blades 13 in the related art, the structure can be simplified, the manufacturing is convenient, the air flow entering the air outlet frame 12 through the air supply groove can be enabled, the air flow in the air curtain formed by the air curtain generating device can be enabled to be stable after the air guide of the air guide blades 13, the air curtain has small skewness and low dispersion degree, the impact of the jet air curtain on the adjacent air supply column 10 due to the skewness of the air curtain can be effectively avoided, the flow form of the disturbance, the defect of the collecting efficiency is influenced, thereby being beneficial to the isolation and the collection of the dust.
As shown in fig. 4, in some embodiments of the present invention, in order to facilitate the airflow flowing and reduce the disturbance to the airflow during the diversion process, the first extension 131 and the second extension 132 are smoothly transited.
As shown in fig. 3 and 4, in some examples of the present invention, a plurality of wind-guiding blades 13 are uniformly disposed in the wind-out frame 12 along the length direction of the wind-out frame 12, so as to divide the wind-out frame 12 into a plurality of wind-supplying channels 14 conducting with the wind-supplying groove, and the maximum distance between any two adjacent wind-guiding blades 13 in the length direction is d, d can take any value in the range of 30mm-60mm, for example, d can be 30mm, 45mm, and can also be 60mm, and further avoid the problem that each wind-supplying channel 14 is too small to affect the wind-supplying efficiency and the wind-guiding effect too greatly.
As shown in fig. 3, in some examples, the cylindrical body 11 is a cylinder, the diameter D of which satisfies: d is more than or equal to 35mm and less than or equal to 190mm, the length H is more than or equal to 1000mm and less than or equal to 3000mm, the outward extending height of the air outlet frame 12 along the periphery perpendicular to the air supply groove is H, H is more than or equal to 10mm and less than or equal to 30mm, wherein the maximum distance D between the air guide blades 13 is positively correlated with the diameter D of the columnar body 11, and when the maximum distance D between the air guide blades 13 is smaller, the diameter D of the columnar body 11 is smaller; when the maximum distance D between the wind guide blades 13 is larger, the diameter D of the columnar body 11 is larger, for example, when the maximum distance D between the wind guide blades 13 is 30mm, the diameter D of the columnar body 11 is 35mm-55 mm; when the maximum distance D between the air guide blades 13 is 60mm, the diameter D of the columnar body 11 is 110mm-190 mm.
A dust control device 100 according to an embodiment of the second aspect of the present invention will be described with reference to fig. 1 to 4.
The dust control device 100 according to the embodiment of the present invention includes an air supply system 20, an air suction system 30, an air curtain generating device and an air suction cover 40.
The air curtain generating device comprises at least three air supply columns 10, the at least three air supply columns 10 are uniformly arranged at intervals in an annular mode along the circumferential direction, for example, the air curtain generating device can comprise three air supply columns 10, the three air supply columns 10 can be arranged in a regular triangle mode, the air curtain generating device also comprises four air supply columns 10 (for example, in the figure 2), the four air supply columns 10 are arranged in a rectangular mode, each air supply column 10 is communicated with the air supply system 20, and the air curtain generating device is used for generating air curtains at the same jet speed according to the preset jet angle αvTo the annular inside air supply that at least three air supply post 10 formed, wherein, air supply post 10 is according to the utility model discloses air supply post 10 structure of first aspect embodiment, air supply system 20 can be one, realizes the air supply to a plurality of air supply posts 10 through air supply system 20 promptly, also can be a plurality of, a plurality of air supply systems 20 and a plurality of air supply promptlyThe columns 10 are in one-to-one correspondence, and air supply to the corresponding air supply columns 10 is achieved.
The cover that induced drafts 40 covers the top of locating air curtain generating device, and the middle part of the cover that induced drafts 40 is equipped with the inlet scoop, and the one end of the system of induced drafting 30 links to each other with the inlet scoop to it is right to realize through the inlet scoop the annular center that at least three air feed column 10 formed induced drafts, and simultaneously, the other end of the system of induced drafting 30 can link to each other with the clarifier, and then carries dust gas to the clarifier and handles.
From this, according to the utility model discloses dust control device 100, through adopting according to the utility model discloses an air supply post 10 for dust control device of first aspect embodiment, compare in the rotatory air curtain dust arrester installation in the correlation technique, both can simplify the structure, be convenient for make, can make again to get into the air current in the air-out frame 12 through sending the wind groove, can make air current stable in the air curtain that air curtain generating device formed after the wind-guiding blade 13 water conservancy diversion, the air curtain squint nature is little and dispersion degree is low, compare in the rotatory air curtain installation in the correlation technique, effectively avoided because the air curtain skew causes the impact of efflux air curtain to adjacent air supply post 10, disturb the mobile form of air current, influence the drawback of collecting efficiency, thereby do benefit to the isolation and the collection of dust. In addition, the overall space occupation of the dust control device 100 can be effectively reduced while the collecting efficiency is ensured.
As shown in fig. 2, in some examples, the preset jet angle α satisfies 10 ° ≦ α ≦ 20 °, in other words, the air supply column 10 blows out the planar cross flow air curtains in the same rotation direction at the jet angle of 10 ° -20 °, the air curtains are connected end to end and are mutually closed, forming an air curtain closing effect on the dust generating space.
In some examples, in order to facilitate the stability of the air curtain and obtain a proper dust control efficiency, the air curtain jet flow rate of each air supply column 10 is the same, and when x =1m, the jet flow speed of each air supply column 10 is equalvSatisfies the following conditions: 5m/s is less than or equal tovLess than or equal to 6.8m/s, and when x =2m, the jet velocity of each air supply column 10vSatisfies the following conditions: 10.8m/s is less than or equal tovLess than or equal to 12.5m/s, and when x =3m, the jet velocity of each air supply column 10vSatisfies the following conditions: 26.8m/s is less than or equal tovLess than or equal to 30.2m/s, wherein the length of the air supply groove (such asUp and down in fig. 3) is x.
In other examples, for facilitating the stability of the air curtain and obtaining a proper dust control efficiency, the air curtain jet flow rate of each air supply column 10 is the same, and the jet flow velocity of each air supply column 10 is the samevSatisfies the following conditions:v=2.6 e0.78xwherein x is the length of the air supply groove, the unit is meter (m), and e is a natural constant.
As shown in fig. 1 and 2, in some optional embodiments of the present invention, the air curtain generating device includes four air supply columns 10 evenly spaced along the circumferential direction, the four air supply columns 10 are sequentially connected along the circumferential direction to form a rectangular structure, and the air supply system 20 supplies air through the four same air supply columns 10.
The utility model discloses an in some embodiments, the ratio of the volume of induced drafting of the cover 40 of induced drafting and the total supply air volume of at least three air supply post 10 is 0.8-1.0, for example, the volume of induced drafting of the cover 40 of induced drafting and the total supply air volume of at least three air supply post 10 of induced drafting can be 0.8, 0.9 or 1 to do benefit to the dust more and gather together to producing dirt district center under the negative pressure effect, and then under the combined action of air curtain efflux and inspiratory flow, the air current in the producing dirt district carries the dust and forms rotatory air curtain, the dust is by effective control in producing dirt district.
Referring to fig. 2, in some embodiments, the air suction cover 40 is formed into an inverted funnel-shaped structure, the air suction cover 40 is provided with at least three mounting holes 41, the at least three mounting holes 41 are connected to the at least three air supply columns 10 in a one-to-one correspondence, and each air supply column 10 passes through the mounting hole 41 and then is connected to the air supply system 20, for example, in the example shown in fig. 2, the mounting holes 41 are provided at four corners of the air suction cover 40 and are respectively connected to the columnar bodies 11 of the four air supply columns 10, and the columnar bodies 11 pass through the mounting holes 41 to support the air suction cover 40 and communicate with the air supply system 20.
Further, the cross-sectional area of the air suction opening is S, 25000mm2≤S≤80400mm2The height of the air suction hood 40 from the ground is H ', 1000mm ≤ H', 3000mm, for example, in some examples, the air suction opening is formed as a circular hole, and the diameter of the air suction opening is 180-.
From this, according to the utility model discloses dust control device 100 has solved the problem that traditional rotatory air curtain air supply arrangement air supply is unstable, the dispersity is high and the skewness is big, has effectively avoided because the air curtain skew causes the impact of efflux air curtain to fixed platform, disturbs the mobile form of air current, influences the drawback of collecting efficiency, effectively reduces air curtain generating device volume simultaneously for 29% of traditional volume, provides new technology to the operation environment that has strict volume restriction. In addition, this technique has solved rotatory air curtain dust arrester installation volume enlargement problem, and is the height from length x width x with traditional size: 1 x 1m, is expanded to 1 x 1 m-3 x 2m, and is suitable for the environment with larger collecting requirements, thereby further ensuring the collecting efficiency of dust.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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 therefore should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
Other configurations and operations of the air supply column 10 for a dust control device and the dust control device 100 having the same according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. An air supply column for a dust control device, comprising:
the air supply device comprises a columnar body, a fan and a fan, wherein the columnar body is of a hollow structure with an opening at the top, the opening at the top of the hollow structure is suitable for being connected with an air supply system, and an air supply groove extending along the length direction is formed in the outer peripheral wall of the columnar body;
the air outlet frame is arranged around the peripheral edge of the air supply groove and extends outwards perpendicular to the peripheral edge of the air supply groove;
wind guide vane is a plurality of wind guide vane follows the length direction interval of air-out frame is located in the air-out frame, every wind guide vane includes first extension section and with the continuous second extension section of first extension section, first extension section along horizontal direction downwardly extending and with form first predetermined contained angle beta between the axis of column body, second extension section along horizontal direction upwardly extending and with the horizontal direction formation second predetermined contained angle gamma, wherein, 20 is less than or equal to beta and is less than or equal to 25 and 20 is less than or equal to gamma and is less than or equal to 25.
2. The air supply column for a dust control device according to claim 1, wherein the first extension section and the second extension section are smoothly transited.
3. The air supply column for the dust control device as claimed in claim 2, wherein a plurality of the air guide blades are uniformly distributed in the air outlet frame at intervals along the length direction of the air outlet frame so as to divide the air outlet frame into a plurality of air supply channels communicated with the air supply groove, and the maximum distance between any two adjacent air guide blades in the length direction of the air outlet frame is d, and d is greater than or equal to 30mm and less than or equal to 60 mm.
4. The air supply column for the dust control device as claimed in claim 3, wherein the columnar body is a cylinder body, the diameter of the cylinder body is D, D is more than or equal to 35mm and less than or equal to 190mm, the length of the cylinder body is H, H is more than or equal to 1000mm and less than or equal to 3000mm, the air outlet frame extends outwards along a direction perpendicular to the periphery of the air supply groove, the height of the air outlet frame is H, and H is more than or equal to 10mm and less than or equal to 30 mm.
5. A dust control apparatus, comprising:
an air supply system and an air suction system;
the air curtain generating device comprises at least three air supply columns which are arranged at intervals in an annular mode along the circumferential direction, and each air supply column is connected with the air supply system and is constructed to have the same jet speed according to a preset jet angle αvBlowing air to an annular inner part formed by the at least three air blowing columns, wherein the air blowing columns are the air blowing columns for the dust control device according to any one of claims 1 to 4;
the air suction cover is arranged at the top of the air curtain generating device, an air suction opening is formed in the middle of the air suction cover, and the air suction system is communicated with the air suction opening to suck air along an annular center formed by the at least three air supply columns.
6. A dust control device according to claim 5, characterized in that the preset jet angle α satisfies: alpha is more than or equal to 10 degrees and less than or equal to 20 degrees.
7. A dust control device according to claim 5, wherein the length of the air supply duct is x,
when x =1m, the jet velocity of each air supply columnvSatisfies the following conditions: 5m/s is less than or equal tov≤6.8m/s;
When x =2m, the jet velocity of each air supply columnvSatisfies the following conditions: 10.8m/s is less than or equal tov≤12.5m/s;
When x =3m, the jet velocity of each air supply columnvSatisfies the following conditions: 26.8m/s is less than or equal tov≤30.2m/s。
8. A dust control apparatus according to claim 5, wherein the velocity of the jet of each of the air-supply columnsvSatisfies the following conditions:v=2.6 e0.78xwherein x is the length of the air supply groove, and e is a natural constant.
9. The dust control device of any one of claims 5 to 8, wherein the air curtain generating device comprises four air supply columns arranged at intervals along the circumferential direction, and the air supply columns are sequentially connected along the circumferential direction to form a rectangular structure.
10. A dust control device according to any one of claims 5 to 8, characterized in that the ratio of the suction volume of the suction hood to the total supply volume of the at least three air supply columns is 0.8 to 1.0.
11. The dust control device of any one of claims 5-8, wherein the suction hood is formed as an inverted funnel-shaped structure, the suction hood is provided with at least three mounting holes, the at least three mounting holes are connected with the at least three air supply columns in a one-to-one correspondence, and each air supply column is connected with the air supply system after passing through the mounting hole.
12. A dust control device according to claim 11, wherein the cross-sectional area of the air suction opening is S, 25000mm2≤S≤80400mm2The ground clearance of the air suction cover is H ', H' is more than or equal to 1000mm and less than or equal to 3000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020227076.9U CN211601019U (en) | 2020-02-28 | 2020-02-28 | Air supply column for dust control device and dust control device with same |
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| CN202020227076.9U CN211601019U (en) | 2020-02-28 | 2020-02-28 | Air supply column for dust control device and dust control device with same |
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