CN218252061U

CN218252061U - Energy-saving dust hood capable of reducing air suction volume

Info

Publication number: CN218252061U
Application number: CN202222939594.5U
Authority: CN
Inventors: 熊佑豪; 钟旭; 张明举
Original assignee: Chongqing Jia Tian Environmental Protection Engineering Co ltd
Current assignee: Chongqing Jia Tian Environmental Protection Engineering Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-01-10
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses an energy-conserving dust cage of volume of induced drafting, including dust cage cover inlayer, can dismantle filter screen, exhaust pipe and exhaust fan, the dust cage shell is connected to the outward flange all around of dust cage cover inlayer, the lug is installed to the outer wall of dust cage cover. The utility model discloses according to amount of wind Q = wind speed V X dust cage mouth area S, above formula, for the purpose that the peripheral dust of dust cage will reach energy-conserving operation again of better siphoning away, reduce the area of dust cage mouth, through the design to album dirt, on the basis of original dust cage, increase the one deck inlayer in original dust cage, make album dirt wind not induced draft through the intermediate position of dust cage, so under the unchangeable condition of former amount of wind, the area of dust cage has reduced, and the wind speed in the peripheral gap of dust cage has just improved, just can collect the dust better, and the escape of dust also reduces than original, handle the same dust under the same dust collection effect and just reached energy-conserving purpose of operation.

Description

Energy-saving dust hood capable of reducing air suction volume

Technical Field

The utility model relates to a dust cage technical field specifically is an energy-conserving dust cage of volume of induced drafting.

Background

The dust collection of the conventional dust removal system adopts a dust hood, under the action of a draught fan, a certain negative pressure is achieved in the dust hood through an air pipe, and under the action of the negative pressure, dust in a certain range around the dust hood is collected into the dust hood and is conveyed to dust removal equipment through the air pipe to be treated.

The existing dust cage has the following defects:

patent document CN106378711a discloses a sheet metal dust collecting cover, and the right of protection "includes a brush, a dust collecting pipe, and a sheet metal cover; the front surface of the sheet metal cover is open and is used for butting cutting equipment; hairbrushes are arranged on the top edge, the bottom edge and the left side edge of the front face of the sheet metal cover; a part of the top of the sheet metal cover extends backwards to form a top end extension part; the front surface of the metal plate cover is provided with a connecting hole; one end of the dust collecting pipe is connected with the right side surface of the sheet metal cover which is not provided with the brush; the other end of the dust collecting pipe is provided with a connecting pipe section for connecting a hose, and the air draft device is connected with the dust collecting pipe through the hose. The sheet metal dust collection cover is used for butt joint cutting equipment, realizes the collection of chips and dust generated in the machining process, has good collection effect, and can collect the chips and the dust in real time in work;

the system has the defects that: in order to better collect dust, according to different dust properties, a certain wind speed needs to be reached at the opening of the dust collecting cover, so that the dust can be sucked away after the suction force of wind is greater than the gravity of the dust, and the size of the wind speed is determined according to the dust collection wind quantity and the area of the opening of the dust collecting cover, so that under the condition that the area of the opening of the dust collecting cover is not changed, in order to achieve a better dust removal effect, only the dust collection wind speed is increased, but only the wind quantity of a draught fan is increased when the dust collection wind speed is increased, finally, the dust collection wind quantity is larger, the investment of dust removal equipment and the draught fan is large, the operating cost is high, and the purpose of energy-saving operation cannot be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-conserving dust cage of volume of induced drafting to solve the problem that provides among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a reduce energy-conserving dust cage of induced-draft, includes dust cage cover inlayer, can dismantle filter screen, exhaust pipe and exhaust fan, the dust cage shell is connected to the outward flange all around of dust cage cover inlayer, the centre of dust cage inlayer and be equipped with a seam inlet scoop all around, the lug is installed to the outer wall of dust cage cover, the outer wall at dust cage shell top is installed and is dismantled the filter screen, can dismantle the top of filter screen and install the exhaust pipe, the exhaust fan is installed to the inner wall of exhaust pipe, the one end of exhaust fan is equipped with the exhaust mouth, can dismantle the outer wall of filter screen and install the filter screen shell, can dismantle the inner wall of filter screen and install and dismantle filter screen B, prime number can dismantle filter screen B's one end and install from the formula closing plate that hangs down, install the hinge from the outer wall of formula closing plate, and can dismantle filter screen B from the formula closing plate and pass through hinged joint, the exhaust fan impeller is installed to the inner wall of exhaust fan.

Preferably, the shell of the dust hood and the inner layer of the dust hood form a shell of the dust hood, and the inner layer of the dust hood is provided with a 45-degree inclined plane slot air suction opening of the inner layer of the dust hood.

Preferably, the middle top of the inner layer of the energy-saving dust collection cover is provided with an inner layer middle top slot air suction opening.

Preferably, a strip slit air suction opening is formed in a 45-degree inclined plane of the outer ring of the inner layer of the energy-saving dust collection cover.

Preferably, the inner ring at the bottom of the inner layer of the dust hood is provided with a downward slot air suction opening of the inner layer of the dust hood.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses according to amount of wind Q = wind speed V X dust cage mouth area S, above formula, for the purpose that the peripheral dust of dust cage will reach energy-conserving operation again of better siphoning away, reduce the area of induced drafting of dust cage mouth, through the design to album dirt, on the basis of original dust cage (1), increase the one deck inlayer in original dust cage, make album dirt wind not induced draft through the whole cover mouth of dust cage, but induced draft and the middle top of inlayer in the strip seam all around between the shell of dust cage and inlayer, so under the unchangeable circumstances of former amount of wind, the area of dust cage has reduced, and the wind speed in the peripheral gap of dust cage has just improved, just can collect the dust better, and the escape of dust also reduces than originally, change another condition just, for collecting the same dust, also be unchangeable to the dust absorption wind speed, the area of dust cage has reduced, what correspond just is the demand of draught fan has just dwindled, the power of draught fan has just reduced thereupon, so handle the same dust under the same effect and just reached the purpose of energy-conserving operation

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the main body of the present invention;

FIG. 3 is a schematic front view of the main body of the present invention;

FIG. 4 is a schematic view of the tuyere position structure of the present invention;

fig. 5 is a schematic view of the detachable filter net of the present invention.

In the figure: 1. an inner layer of the dust hood; 3. lifting lugs; 4. the filter screen can be disassembled; 5. an exhaust duct; 6. an exhaust fan; 7. an air outlet; 21. an air inlet is arranged on the inner layer of the dust hood at an inclined plane of 45 degrees; 22. the inner layer of the dust hood faces downwards from the slot air inlet; 23. the top of the middle of the inner layer is provided with a slot air suction inlet; 41. a filter screen shell; 42. the filter screen B can be disassembled; 43. a self-hanging seal plate; 44. a hinge; 61. an exhaust fan impeller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides an embodiment: an energy-saving dust hood capable of reducing air suction volume comprises a dust hood inner layer 1, a detachable filter screen 4, an exhaust pipe 5 and an exhaust fan 6, wherein the peripheral outer edge of the dust hood inner layer 1 is connected with a dust hood shell, slit air suction openings are formed in the middle and the periphery of the dust hood inner layer 1, a lifting lug 3 is arranged on the outer wall of the dust hood outer layer, the detachable filter screen 4 is arranged on the outer wall of the top of the dust hood shell, the exhaust pipe 5 is arranged on the top of the detachable filter screen 4, the exhaust fan 6 is arranged on the inner wall of the exhaust pipe 5, an air outlet 7 is arranged at one end of the exhaust fan 6, a filter screen shell 41 is arranged on the outer wall of the detachable filter screen 4, a detachable filter screen B42 is arranged on the inner wall of the detachable filter screen 4, the self-hanging type sealing plate 43 is installed at one end of the filter screen B42 which is detachable to the prime number, a hinge 44 is installed on the outer wall of the self-hanging type sealing plate 43, the self-hanging type sealing plate 43 is connected with the detachable filter screen B42 through the hinge 44, an exhaust fan impeller 61 is installed on the inner wall of an exhaust fan 6, a shell of a dust hood is formed by a dust hood shell and an inner layer of the dust hood, a 45-degree inclined plane strip slot air suction opening 21 of the inner layer of the dust hood is formed in the inner layer 1 of the dust hood, an inner layer middle top strip slot air suction opening 23 is formed in the middle top of the inner layer of the energy-saving dust hood, a strip slot air suction opening is formed in an outer ring 45-degree inclined plane of the inner layer of the energy-saving dust hood, and a strip slot air suction opening 22 facing the inner layer of the dust hood is formed in the inner layer 1 of the bottom inner ring of the dust hood.

According to the air quantity Q = air speed V multiplied by the area S of the opening of the dust hood, the above formula is adopted, in order to better suck away dust around the dust hood and achieve the purpose of energy-saving operation, the area of the opening of the dust hood is reduced, through the design of dust collection, on the basis of the original dust hood, an inner layer is added in the original dust hood, so that dust collection air is not sucked through the middle position of the dust hood but is sucked in the peripheral gap between the shell and the inner layer of the dust hood, under the condition that the original air quantity is unchanged, the area of the dust hood is reduced, the air speed of the gap around the dust hood is increased, dust can be better escaped and collected, the dust collection power of the dust is reduced compared with the original dust collection power, under the other condition, in order to collect the same dust, namely, the dust collection air speed is unchanged, the area of the dust hood is reduced, the corresponding air quantity requirement of the induced draft fan is reduced, and the power of the induced fan is reduced, so that the purpose of energy-saving operation is achieved by processing the same dust under the same effect.

The working principle is that on the basis of an original open type dust hood, an inner layer is added in the original dust hood, two circles of seam air suction ports are arranged around the space between the outer shell and the inner layer of the dust hood, the outer circle of seam air suction ports face outwards in a 45-degree inclined plane mode, the inner circle of air suction ports face downwards, a seam air suction port is also arranged at the top of the middle of the inner layer of the dust hood, and the dust collection air speed of the seam is larger than 7 m/s. The innovative design ensures that most of dust is sucked away by the middle strip slit air suction opening, a small part of escaping dust is sucked away by the strip slit air suction opening of the inner ring when the dust is diffused outwards, and a small part of the escaping dust outside the dust collection cover and the peripheral dust are captured by the high-speed dust collection air of the inclined plane strip slit opening in the rising process. The novel dust hood is additionally provided with the inner shell with the strip seam, so that the ventilation area of the dust hood is greatly reduced, and the dust collection wind speed of the center and the outer ring is improved, so that the dust collection effect is better and the wind volume is lower. Under the condition that the original air volume is unchanged, the area of the dust collection cover is reduced, the air speed of gaps at the periphery of the dust collection cover is increased, dust can be better collected, escape of the dust is reduced compared with the original air speed, the other condition is that the area of the dust collection cover is reduced for collecting the same dust, namely the dust collection air speed is unchanged, the air volume requirement of the induced draft fan is correspondingly reduced, the power of the induced draft fan is reduced, and therefore the purpose of energy-saving operation is achieved by processing the same dust under the same dust collection effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Claims

1. The utility model provides a reduce energy-conserving dust cage of induced draft volume, includes dust cage cover inlayer (1), can dismantle filter screen (4), exhaust pipe (5) and exhaust fan (6), its characterized in that: the dust cage shell is connected to the outward flange all around of dust cage cover inlayer (1), the centre of dust cage cover inlayer (1) is equipped with a strip seam inlet scoop all around, lug (3) are installed to the outer wall of dust cage cover, the outer wall at dust cage shell top is installed and is dismantled filter screen (4), exhaust pipe (5) are installed at the top of dismantling filter screen (4), exhaust fan (6) are installed to the inner wall of exhaust pipe (5), the one end of exhaust fan (6) is equipped with air exit (7), can dismantle the outer wall of filter screen (4) and install filter screen shell (41), can dismantle the inner wall of filter screen (4) and install and dismantle filter screen B (42), the prime number can be dismantled the one end of filter screen B (42) and install from formula of hanging down closing plate (43), install hinge (44) from the outer wall of formula of hanging down closing plate (43), and from formula of hanging down closing plate (43) and can dismantle filter screen B (42) and pass through hinge (44) and be connected, exhaust fan impeller (61) are installed to the inner wall of exhaust fan (6).

2. The energy-saving dust hood capable of reducing air suction volume according to claim 1, is characterized in that: the shell of the dust hood and the inner layer of the dust hood form a shell of the dust hood, and the inner layer (1) of the dust hood is provided with an air inlet (21) with a 45-degree inclined plane slot on the inner layer of the dust hood.

3. The energy-saving dust hood capable of reducing the air suction volume as claimed in claim 1, is characterized in that: the middle top of the inner layer of the energy-saving dust collection cover is provided with an inner layer middle top slot air suction opening (23).

4. The energy-saving dust hood capable of reducing air suction volume according to claim 1, is characterized in that: and a strip slit air suction opening is formed in the 45-degree inclined plane of the outer ring of the inner layer of the energy-saving dust collection cover.

5. The energy-saving dust hood capable of reducing air suction volume according to claim 1, is characterized in that: an inner ring at the bottom of the inner layer (1) of the dust hood is provided with a downward slot air suction opening (22) of the inner layer of the dust hood.