CN2732821Y

CN2732821Y - Metal windshield

Info

Publication number: CN2732821Y
Application number: CN 200420029544
Authority: CN
Inventors: 徐玉喜; 王淑华
Original assignee: Design Institute Of Tianjin Environmental Protection Technology Development Center; Tianjin Xin'ao Environmental Protection And Energy Saving Equipment Co ltd
Current assignee: Design Institute Of Tianjin Environmental Protection Technology Development Center; Tianjin Xin'ao Environmental Protection And Energy Saving Equipment Co ltd
Priority date: 2004-08-17
Filing date: 2004-08-17
Publication date: 2005-10-12
Anticipated expiration: 2014-08-17

Abstract

The utility model relates to a metal windshield which is used for protecting environment, shielding wind and sand, and suppressing dust. The metal windshield is characterized in that the metal windshield is a rectangle metal board, and is bent into a symmetrical trapezium or an unsymmetrical trapezium. The length of the metal windshield after being bent is 2800mm-3000mm, the width of the metal windshield is 250mm, and the height of the metal windshield is 65mm or 57mm. The width and the height of the metal windshield can be shortened or lengthened within 5mm. The thickness of the rectangle metal board is 1mm-2mm. A board surface is provided with ventilating holes, and a hole opening rate is 40%-50%. Two edges corresponding to the length of the metal windshield are connecting ends. Four corners of the metal windshield are provided with fixing holes. The structure, the shape, the hole shape, the hole diameter, and the hole opening rate of the metal windshield are strictly positioned by the metal windshield, and the metal windshield has reasonable design. When wind passes through the metal windshield, the wind generates turbulent flow momentum exchange and energy loss, the wind speed of current coming from atmosphere is fast lowered, and the current pressure and the cutting stress of the surface of stack materials are lowered. Thus, the carrying capability of the wind to dust is lowered, the dust raised rate of the stack materials is reduced, and thereby, the purpose of shielding the wind and suppressing the dust to treat the environment is achieved.

Description

The metal verge board

Technical field

The utility model relates to a kind of abat-vent that is used for environmental protection, keeps the sand in check, suppresses dust, particularly one of main member in abat-vent metal verge board.

Background technology

At present, bulk material cargo such as coal, ore at transportation loading and unloading, store up a large amount of dust of generation in the process, atmospheric environment is caused serious pollution, in order to control the pollution of these dust, the technical measures that China takes at present are at dump surface sprinkling humidification, can improve anti-dust effect like this.But because the limitation of measure itself particularly is difficult to carry out in insufficient water sources and freezing season.

The utility model content

The purpose of this utility model is to change the dustproof means of above-mentioned backwardness and consumes resources, and the metal verge board that provides a kind of and keep the sand in check, suppress dust to be constituting abat-vent, and joint money consumption reduction is environmental.

The technical scheme that the utility model adopted is for achieving the above object: a kind of metal verge board, it is characterized in that verge board is a rectangular metal plate, and be bent into symmetrical trapezoidal or asymmetric trapezoidal; Length after the bending is 2800mm～3000mm, and wide is 250mm, and height is 65mm or 57mm, and wide and height can shorten or prolong within the 5mm; Sheet metal thickness is 1mm～2mm; The plate face is provided with the wind hole, and percent opening is 40%～50%; Verge board length two opposite sides edge is a link; Verge board is provided with fixing hole for four jiaos.

Described interior angle and the exterior angle that is bent into the trapezoidal verge board correspondence of symmetry is 139 °; Being bent into the exterior angle that asymmetric trapezoidal verge board one interior angle is adjacent is 109.7 °; The exterior angle that another interior angle is adjacent is 158.3 °; Each angle all can be adjusted in big or small 3 °.

Described fixing hole is a slotted hole.

The hole shape in described wind hole is circle or Long Circle, also can be made as circular and Long Circle hole simultaneously.

If described wind hole circular hole, its aperture is 15mm～40mm; If wind hole slotted hole, its aperture are 3mm * 18mm～10mm * 40mm.

The utility model has the advantages that: this verge board utilization Elementary Fluid Mechanics theory and Wind Tunnel Data, structure, shape, thickness and hole shape, aperture, the porosity of strict location verge board, reasonable in design.By the bulk cargo field is provided with the abat-vent that is made of verge board, bulk cargo is controlled effectively by wind-induced reentrainment of dust in storage process, dustproof efficient reaches more than 80%, has effectively reduced the pollution to atmosphere, environment.Keep the sand in check, suppress dust, effect significantly and be widely used in dustproof, the dust suppression of various materials such as dump, stockpile, dust heap.

Description of drawings

Fig. 1 is the utility model embodiment 1 bending pre-structure schematic diagram;

Fig. 2 is embodiment 1 a bending rear side panel-shaped schematic diagram;

Fig. 3 is the utility model embodiment 2 bending pre-structure schematic diagrames;

Fig. 4 is embodiment 2 bending rear side panel-shaped schematic diagrames.

Among the figure: 1 wind hole, 2 links, 3 fixing holes.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to the specific embodiment, structure, feature that foundation the utility model provides:

Embodiment 1:

Referring to Fig. 1, Fig. 2, this verge board is for being bent into symmetrical trapezoidal rectangular metal plate, and the length after the bending is 2800mm～3000mm, and wide is 250mm, and height is 65mm, and wide and height can shorten or prolong within the 5mm; Sheet metal thickness is 1mm～2mm; The plate face is provided with wind hole 1, and percent opening is 40%～50%; Verge board length two opposite sides edge is a link 2; Verge board is provided with the fixing hole 3 that is connected with the abat-vent framework for four jiaos.

Described interior angle and the exterior angle that is bent into trapezoidal verge board correspondence is 139 °; Each angle all can be adjusted in big or small 3 °.

Described fixing hole 3 is a slotted hole, can regulate the permanent position by slotted hole when being connected with the abat-vent frame fixation.

The hole shape in described wind hole 1 is circle or Long Circle, also can be made as circular and Long Circle hole simultaneously.

If described wind hole 1 circular hole, its aperture is 15mm～40mm; If wind hole 1 slotted hole, its aperture are 3mm * 18mm～10mm * 40mm.

During making, punching press wind hole 1 and fixing hole 2 on the sheet material of regulation are by described angle bending and molding, simple in structure, simple for production then earlier.

Embodiment 2:

Referring to Fig. 3, Fig. 4, this verge board is to be bent into asymmetric trapezoidal rectangular metal plate, and the length after the bending is 2800mm～3000mm, and wide is 250mm, and height is 57mm, and wide and height can shorten or prolong within the 5mm; Sheet metal thickness is 1mm～2mm; The plate face is provided with wind hole 1, and percent opening is 40%～50%; Verge board two opposite sides edge is a link 2; Verge board is provided with the fixing hole 3 that is connected with the abat-vent framework for four jiaos.

Describedly be bent into asymmetric trapezoidal verge board, the one interior angle is that the exterior angle that is adjacent is 109.7; The exterior angle that another interior angle is adjacent is 158.3 °; Each angle all can be adjusted in big or small 3 °.

Other is with embodiment 1.

When wind has produced turbulent flow momentum-exchange and energy loss during by verge board, reduce the wind speed of atmosphere incoming flow rapidly, the stream pressure and the shear stress on windrow surface have been reduced, thereby reduced the carrying capacity of wind to dust, thereby reduce the dirt rate that rises of windrow, keep out the wind, dust suppression, improve air quality, improve people's quality of life.

During use, can select the verge board template of different size, be fixedly installed in the complete abat-vent of formation on the framework that keeps out the wind according to the dirt speed that rises influence to atmospheric environment under the varying environment condition of dump, stockpile, dust heap, simple and easy to do.

Claims

1, a kind of metal verge board is characterized in that verge board is a rectangular metal plate, is bent into symmetrical trapezoidal or asymmetric trapezoidal; Length after the bending is 2800mm～3000mm, and wide is 250mm, and height is 65mm or 57mm, and wide and height can shorten or prolong within the 5mm; Sheet metal thickness is 1mm～2mm; The plate face is provided with the wind hole, and percent opening is 40%～50%; Verge board length two opposite sides edge is a link; Verge board is provided with fixing hole for four jiaos.

2, metal verge board according to claim 1 is characterized in that described interior angle and the exterior angle that is bent into the trapezoidal verge board correspondence of symmetry is 139 °; Being bent into the exterior angle that asymmetric trapezoidal verge board one interior angle is adjacent is 109.7 °; The exterior angle that another interior angle is adjacent is 158.3 °; Each angle all can be adjusted in big or small 3 °.

3, metal verge board according to claim 1 is characterized in that described fixing hole is a slotted hole.

4, metal verge board according to claim 1, the hole shape that it is characterized in that described wind hole is circle or Long Circle, also can be made as circular and Long Circle hole simultaneously.

5, according to claim 1 or 4 described metal verge boards, if it is characterized in that described wind hole circular hole, its aperture is 15mm～40mm; If wind hole slotted hole, its aperture are 3mm * 18mm～10mm * 40mm.