CN211282889U - Device for reducing damage of air-permeable layer of air conveying chute - Google Patents

Abstract

The utility model relates to material conveying, in particular to a device for reducing damage of an air conveying chute ventilation layer, generally speaking, the air conveying chute comprises an inclined chute body, a ventilation layer arranged in the inclined chute body, a feed inlet arranged above the inclined chute body and an air inlet arranged below the inclined chute body and opposite to the feed inlet; the inner chamber of slope cell body is separated for the material layer of top and the air chamber layer of below by ventilative layer, and the device is the buffer board, the buffer board slope sets up in the material layer, is used for accepting the feeding of feed inlet, and the contained angle alpha between buffer board and the ventilative layer is 120 ~ 165. The device is very simple, can effectively reduce the import material and to the direct scour of the ventilative layer of feed inlet department to reduce its damaged speed, improve the live time on ventilative layer.

Description

Device for reducing damage of air-permeable layer of air conveying chute

Technical Field

The utility model relates to a material is carried, concretely relates to a device for reducing air conveying chute ventilative layer is damaged.

Background

The air conveying chute is widely used for conveying raw meal, cement, fly ash and other easily fluidized powdery materials. The groove uses a high-pressure centrifugal fan as a power source, and the groove body is installed according to a certain inclination angle and is divided into a material layer and an air chamber layer. The air-permeable layer is laid between the material and the air chamber, the air chamber is arranged below the air-permeable layer, and the material is arranged above the air chamber. The working principle is that a fan blows air containing pressure into an air chamber, air flow penetrates through a ventilation layer, so that particulate materials on the upper portion of the ventilation layer are in a suspension state, and the materials keep fluidization under the cooperation of self gravity and air flow acting force and slowly flow towards one end inclined downwards.

The air conveying chute shell is made of steel plates and is not easy to damage. The general material of its ventilative layer is the dacron, and relative casing, the easy wearing and tearing, especially the ventilative layer of feed inlet department is changeed the damage than other positions under the environment that the material erodeed perpendicularly to cause the air in the air chamber to get into in material layer or the material enters into the air chamber, lead to the unable normal use of air conveying chute.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for reducing the damaged device in ventilative layer of air conveying chute, the device is very simple, can effectively reduce the import material and directly erode the ventilative layer of feed inlet department to reduce its damaged speed, improve the live time on ventilative layer.

In order to achieve the above object, the utility model adopts the following technical scheme:

a device for reducing damage of an air conveying chute ventilation layer comprises an inclined chute body, the ventilation layer arranged in the inclined chute body, a feed inlet arranged above the inclined chute body, and an air inlet arranged below the inclined chute body and opposite to the feed inlet; the inner cavity of the inclined groove body is divided into an upper material layer and a lower air chamber layer by a ventilation layer, the device is a buffer plate, and the buffer plate is obliquely arranged in the material layer and used for receiving feeding of the feeding hole.

As an optimal scheme, an included angle alpha between the buffer plate and the breathable layer is 120-165 degrees.

As a preferred scheme, the feeding hole is positioned above the buffer plate, and the air inlet is positioned below the buffer plate.

As a preferred scheme, the upper end of the buffer plate is fixed on the inclined groove body, gaps are formed between the front side and the rear side of the buffer plate and the front inner wall and the rear inner wall of the inclined groove body, and the lower end of the buffer plate is contacted with the breathable layer.

Preferably, the buffer plate is a steel plate or a wear-resistant plastic plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses only add a buffer board in the air delivery chute, can reach and reduce its ventilative damaged purpose in layer, design benefit is simple effective, simple to operate, low cost, the practicality is extremely strong. This buffer board and ventilative layer between have certain contained angle, the material that the feed inlet got into can be accepted on one hand to one of them, effectively reduce the import material and to the direct erodeing on the ventilative layer of feed inlet department, thereby reduce ventilative layer damaged speed, on the other hand then can make the import material slide on ventilative layer through its inclined plane after spreading the scattering on the buffer board earlier, when reducing the material to ventilative layer impact force, can also increase the area that the ventilative layer of this place accepted the material on the buffer board, reduce ventilative layer unit area pressure-bearing, further improve the live time on ventilative layer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-a feed inlet, 2-a material layer, 3-a ventilation layer, 4-a gas chamber layer, 5-a gas pipeline, 6-a regulating valve, 7-a fan, 8-a gas outlet, 9-an inspection port, 10-a discharge port, 11-an ash discharge port, 12 supports and 13-a buffer plate.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

The purpose of this embodiment is in order to be able to prolong the normal service life of the air-conveying chute air-permeable layer. This embodiment will describe the present application in detail by taking an air delivery chute of the following structure as an example. The air conveying chute comprises an inclined chute body, a ventilation layer 3, a high-pressure centrifugal fan 7 and a support 12, wherein the support 12 is arranged below the inclined chute body to support the inclined chute body. The ventilation layer 3 is arranged in the inclined groove body and divides the inner cavity of the inclined groove body into an upper material layer 2 and a lower air chamber layer 4. The upper side of the inclined groove body is provided with a feed inlet 1, the middle lower part is provided with an exhaust port 8, the lower side is provided with an inspection port 9, and the lower end of the inclined groove body is directly provided with a discharge port 10. The high end of the lower part of the inclined groove body is provided with an air inlet opposite to the feeding hole, and the low end is provided with an ash discharging hole 11. The high-pressure centrifugal fan 7 is connected with the air inlet through an air pipeline 5, and an adjusting valve 6 is arranged on the air pipeline. The working principle is that a blower is used for blowing air containing pressure into an air chamber layer, air flow penetrates through a breathable layer, so that granular materials on the upper portion of the breathable layer are in a suspended state, and the materials keep fluidized under the cooperation of self gravity and air flow acting force and slowly flow towards one end inclined downwards. The above structure is one of the conventional structures of the air delivery chute in the prior art, and the present embodiment does not improve it, and therefore, the details are not described.

The improvement of this embodiment lies in that set up the buffer board that is used for accepting the feed inlet feeding in the material layer. This buffer board generally directly chooses for use the steel sheet, and the buffer board 13 upper end is fixed on the slope cell body, has the clearance around the buffer board between both sides and the slope cell body front and back inner wall, and the buffer board lower extreme touches with ventilative layer mutually, so, both can play the effect of connecing the material, can play the cushioning effect again. It should also be noted here that the buffer plate needs to be fixed in the air delivery chute, not to fall off, in order to avoid jamming inside the chute. When the air conveying chute is installed, the size of the air conveying chute is measured firstly, a steel plate with the width lower than the width of the chute and the proper length is selected as a buffer plate, the buffer plate is inclined at a certain angle in the horizontal direction and fixed at the feed inlet of the air conveying chute, so that materials fall on the newly reinforced buffer plate as far as possible when entering the air conveying chute, and the purpose of not directly brushing the air permeable layer is achieved. And the contained angle alpha between buffer board and ventilative layer 3 is 120 ~ 165 for the best, has both guaranteed like this that the material can fall to ventilative layer smoothly, can avoid again that the installation angle is too big, and the material still directly falls in a large number on ventilative layer, continues to erode ventilative layer.

In order to further reduce the erosion of the material to the ventilation layer, the feed inlet 1 is preferably located above the buffer plate 13, and the air inlet is preferably located below the buffer plate, so that most of the material can be suspended under the influence of the air flow below the material when falling onto the ventilation layer.

Furthermore, it should be noted that when the steel plate is not suitable for the transported material or has an influence on the material composition as a buffer plate, a wear-resistant plastic plate or other hard material plate having no influence on the material composition may be used to make the buffer plate.

Claims (5)

1. A device for reducing the damage of an air conveying chute ventilation layer comprises an inclined chute body, a ventilation layer (3) arranged in the inclined chute body, a feed inlet (1) arranged above the inclined chute body, and an air inlet arranged below the inclined chute body and opposite to the feed inlet; the device is characterized in that the device is a buffer plate (13), and the buffer plate is obliquely arranged in the material layer and used for receiving the feeding of the feeding port (1).

2. A device for reducing breakage of an air-conveying chute air-permeable layer as claimed in claim 1, characterized in that the angle α between the buffer plate and the air-permeable layer (3) is 120-165 °.

3. A device for reducing breakage of an air conveying chute ventilation layer as claimed in claim 1, characterized in that the inlet opening (1) is located above the buffer plate (13) and the inlet opening is located below the buffer plate.

4. The device for reducing the damage of the air conveying chute ventilation layer as claimed in any one of claims 1 to 3, wherein the upper end of the buffer plate (13) is fixed on the inclined chute body, gaps are formed between the front and rear sides of the buffer plate and the front and rear inner walls of the inclined chute body, and the lower end of the buffer plate is in contact with the ventilation layer.

5. A device for reducing breakage of the ventilation layer of an air delivery chute as claimed in claim 4, characterized in that the buffer plate (13) is a steel plate or a wear-resistant plastic plate.

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