CN203108918U - Dust removal blowing and sucking cover - Google Patents
Dust removal blowing and sucking cover Download PDFInfo
- Publication number
- CN203108918U CN203108918U CN 201320106466 CN201320106466U CN203108918U CN 203108918 U CN203108918 U CN 203108918U CN 201320106466 CN201320106466 CN 201320106466 CN 201320106466 U CN201320106466 U CN 201320106466U CN 203108918 U CN203108918 U CN 203108918U
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- cover
- air
- baffle plate
- dust
- vaccum
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Abstract
The utility model provides a dust removal blowing and sucking cover which comprises an air blowing port and an air sucking cover. A blocking plate is arranged between the air blowing port and the air sucking cover, and the blocking plate is arranged on one side or two sides of a dust source. The blowing and sucking cover can achieve the purpose of catching dust with small air amount and is suitable for large-area and strong-diffusion pollution sources.
Description
Technical field
The utility model relates to a kind of cleaner, particularly the dust shield of dust pelletizing system.
Background technology
On industries such as pickling, plating, casting falling sand, vent cabinet and equipment, what come out in the course of the work contains dusty gas as not controlled, and will pollute the workshop, harm staff's health, as not handled, will be discharged into atmospheric environment from the workshop, atmosphere is polluted.The described dusty gas that contains also comprises and contains the fog body.For preventing the diffusion of dust, will dispose ventilating and purifying air system, these dust collections are got up, handled then and controlled.Dust shield is the vitals in the ventilating and purifying air system, because the restriction of process conditions, sometimes production equipment can't carry out totally-enclosed, can only be arranged on dust shield near the dirt source, by the cover mouthful outer air motion of suction, in the dust inhalation mask, make the air dust content of job site meet relevant criterion.
Dust shield has many different forms according to different production technologies and mode of operation, and effect and structure according to dust shield mainly can be divided into four classes: enclosed hood, half-sealed cover, outer cup and pressure-vaccum cover.
Enclosed hood is that dirt source or whole process equipment is fully airtight, and gas dispersion is limited in the very little confined space, and it only needs less capacity, just can reach requirement, and investment and energy consumption are all less.So, during dust pelletizing system design part exhaust system, should play the first this mode of considering to adopt.
Have bigger hole on the half-sealed cover, with convenient technological operation.It prevents that through the suction air-flow at place, aperture nuisance from escaping.This cover is because increased the outer air imbibed quantity of cover, so capacity is bigger than enclosed hood.But the dust shield than other modes is little, and half-sealed cover can be divided into box cover and cabinet type cover according to its profile.
Outer cup is to be subjected to technology prerequisite restriction, can't carry out adopting when airtight to the dirt source.It is arranged near the dirt source, and pernicious gas and fresh air are enumerated in full detail in the inhalation mask.
When owing to be subjected to producing and the process conditions restriction, dust source enclosure can not when arranging outer cup, side, dirt source can not be considered to adopt the pressure-vaccum cover again.The pressure-vaccum cover is the jet that utilizes blowing mouth to blow out, and the dust-contained airflow that the dirt source is distributed blows to inlet scoop (the cover mouth of exhaust hood), is inhaled in the cover under the effect of confluxing before the inlet scoop.
The air-flow that existing pressure-vaccum covers between blowing mouth and the inlet scoop spreads easily, causes the escape of pernicious gas, needs to increase bigger inspiratory capacity.
Summary of the invention
The purpose of this utility model is to optimize original pressure-vaccum cover, reduces air quantity, raises the efficiency.For this reason, the technical scheme of employing is, dedusting pressure-vaccum cover of the present utility model comprises blowing mouth, suspended hood, between blowing mouth and suspended hood baffle plate is set, and baffle plate is positioned at the one or both sides in dirt source.
For further raising the efficiency, the height of baffle plate increases gradually from blowing mouth one end to suspended hood one end, can be that linearity increases or non-linear increasing.
As a kind of preferred version of the present utility model, baffle plate adopts parabolic to increase.
For collecting air-flow better, reduce the escape of dust-containing air stream, the top of baffle plate to the dirt source side to inclination.
Pressure-vaccum cover of the present utility model can reach the purpose of dust catching with less air quantity, owing to be provided with baffle plate, its jet range is farther, can enlarge control range, more is applicable to the pollution sources of large tracts of land, strong diffusion.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is gradually high formula baffle plate schematic diagram of the utility model.
The specific embodiment
The pressure-vaccum cover utilizes the jet-stream wind principle, and pollutant and surrounding air that pollution sources are distributed are isolated, to guarantee the sanitary condition of workspace.Because the air-breathing velocity attenuation of air-suction cover is very fast, apart from cover mouthful 1 times of diameter place, the air velocity on the axis can be reduced to 10% of air entry speed, for this reason, under dirt source and the bigger situation of inspiratory point distance, not only exhaust air rate is big, and is difficult to guarantee to reach the effect that control is polluted.In jet-stream wind, jet-stream wind has the slow characteristics of velocity attenuation, at distance cover mouthful 6 times of diameter places, 75%, 11 times of diameter place that air velocity only is reduced to the outlet wind speed is that 50%, 21 times of diameter place is 25%, only when distance reaches 30 times of diameters, just be reduced to 10% of muzzle velocity.For this reason, in the time of at one end air-breathing, the other end is established the winding-up air-flow, forms the pressure-vaccum cover, to improve the effect of its control pollutant.Both sides in the dirt source arrange baffle plate, can reduce the decay of air-flow, effectively improve dust collection efficiency.
As shown in Figure 1, in the both sides in dirt source 3 baffle plate 4 is set, blower fan 1 blows to the dirt source with air-flow from blowing mouth 2, and wind direction is shown in arrow among the figure.Endways, suspended hood 5 will suck with the air-flow of dust and discharge from exhaust outlet 6.
Side in the dirt source that has is not suitable for arranging baffle plate, or a side has been when having had the facility that is equivalent to baffle plate, and also only the side in the dirt source arranges baffle plate.
The height of baffle plate is can two ends identical, as shown in Figure 1; The better scheme of effect is for to increase gradually from blowing mouth one side to suspended hood one side, its mode can be linear also can be non-linear.The schematic diagram that Fig. 2 increases for baffle plate 4 parabolics.
For collecting air-flow better, reduce the escape of dust-containing air stream, can make baffle plate 4 tops to the dirt source side to inclination, make the low wide and up narrow space of formation between the baffle plate.
Claims (5)
1. a dedusting pressure-vaccum cover comprises blowing mouth (1), suspended hood (5), it is characterized in that it also comprises baffle plate (4), and described baffle plate (4) is arranged between blowing mouth (2) and the suspended hood (5), is positioned at the one or both sides of dust source (3).
2. as the described dedusting pressure-vaccum of claim (1) cover, it is characterized in that the height of described baffle plate (4) increases gradually from blowing mouth (2) one ends to suspended hood (5) one ends.
3. as the described dedusting pressure-vaccum of claim (2) cover, it is characterized in that described baffle plate (4) increases for linearity.
4. as the described dedusting pressure-vaccum of claim (2) cover, it is characterized in that described baffle plate (4) increases for parabolic.
5. as claim (1) to (4) described dedusting pressure-vaccum cover, it is characterized in that the top of described baffle plate (4) tilts to the dust source direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106466 CN203108918U (en) | 2013-03-09 | 2013-03-09 | Dust removal blowing and sucking cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106466 CN203108918U (en) | 2013-03-09 | 2013-03-09 | Dust removal blowing and sucking cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108918U true CN203108918U (en) | 2013-08-07 |
Family
ID=48889296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320106466 Expired - Fee Related CN203108918U (en) | 2013-03-09 | 2013-03-09 | Dust removal blowing and sucking cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203108918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487690A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A kind of high humidity dust control early warning and removal system |
-
2013
- 2013-03-09 CN CN 201320106466 patent/CN203108918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487690A (en) * | 2018-05-14 | 2019-11-22 | 中国石油化工股份有限公司 | A kind of high humidity dust control early warning and removal system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140309 |