JPS6111149Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, silos that mainly store powder and granular materials such as cement have had a cover with a cross-section of 〓 or 〓 shaped just above the screw conveyor installed at the top of the bottom.
In addition to preventing the powder and granules flowing down from above from directly onto the screw conveyor, an appropriate amount of powder and granules are supplied to the screw conveyor through the gap formed between the bottom side wall of the silo in the diagonal direction, and the screw conveyor is The conveyor was designed to rotate smoothly so as not to interfere with its rotation, and the powder and granules were discharged from the bottom top of the silo body to the outside. There is no problem if the powder is being fed to the conveyor, but sometimes the powder is concentrated in one place and pressure is applied downward, or it solidifies, making it impossible to disperse the powder. , clogging the gap, or flowing to the other side, creating a gap between the powder and the granular material,
The rotational force of the screw conveyor was reduced, making it impossible to uniformly and smoothly feed and supply the powder and granules from the silo to the outside.

SUMMARY OF THE INVENTION Therefore, the present invention provides a silo for powder and granular material, which is characterized by smooth rotation of the screw conveyor and by which the powder and granular material inside the silo body can be uniformly discharged to the outside. An example of implementation will be described in detail below with reference to the drawings.

The silo main body 1 mainly stores cement, and the bottoms of the left and right side walls a, a are curved inwardly to form a bottom with a square cross section. The slopes a' and a' are supported and fixed to a support plate 7 set up on a base 6, and the upper plate b is provided with a silo main body 1 in order to prevent dust generated when granules are introduced into the silo from scattering to the outside. An exhaust port 8 is opened to exhaust the air inside, an air exhaust passage 9 is provided, and a screw conveyor 11 is installed on the front wall c to cover the top plate 10 and push the powder upward. death,
An inlet 12 is opened in the upper part of the back wall d, through which the powder and granules are fed under pressure in bulk.

A screw shaft 4 is mounted on the top of the inner bottom of the silo body 1, extending from the inner bottom surface of the front wall c to the inner bottom surface of the back wall d. A dispersion plate 2 is installed horizontally to form a supply path 5, and mountain-shaped rectifier plates 3 are appropriately set up on the oblique sides of both left and right ends of the dispersion plate 2, and the left and right bottom edges thereof are connected to the silo. It is adhesively attached to the bottom slopes a' and a' of the left and right side walls of the main body 1 to reinforce and support the dispersion plate 2, and to uniformly disperse the powder and granules in the silo main body 1.
Let it fall to the top.

The dispersion plate 2 is formed into a chevron shape and is disposed on the bottom top of the silo body 1, and its both ends are installed on the inner bottom of the front wall c and inner wall d of the silo body 1, respectively, and both the left and right sides of the chevron shape are installed. Attach the rectifier plate 3 to the inclined surface,
The entire weight of the powder and granules is prevented from coming into direct pressure contact with the upper surface of the screw shaft 4, and a certain amount of the powder and granules are guided to the screw shaft 4 to smooth the rotation of the screw shaft 4.

The current plate 3 prevents the powder and granules inputted from the input port 12 from being piled up and solidified, and from being concentrated in one place. The flow of granules is made constant so that they can be uniformly pressed and fed toward the screw shaft 4.

With the structure of the present invention as described above, the total weight of the powder and granular material in the silo body 1 is directly applied to the screw shaft 4 by the dispersion plate 2. First, the entire weight pressure is uniformly received and supported at any position on the screw shaft 4,
Gradually and uniformly flow into the supply path 5 provided between the dispersion plate 2 and the bottom slopes a' and a' of the left and right side walls, and this supply path 5
is divided by the rectifier plate 3, so the flow of the powder is divided and rectified, and the solidified powder is decomposed by the rectifier plate 3, and a fixed amount of powder is sent to the screw from the supply path 5. It is supplied to the shaft 4. The powder and granules in the silo body 1 are fluidly transferred by the screw shaft 4, fed into the screw conveyor 11 set up outside the silo body 1, pushed up by the screw conveyor 11, and then conveyed by the desired amount. It is uniformly carried out from the upper front of the silo body 1.

As described above, the present invention is to install a dispersion plate with a chevron-shaped cross section from the front wall to the back wall of the silo body, at an appropriate interval just above the screw shaft, which is placed on the top of the bottom of the silo body, whose bottom is shaped like a square. It is constructed across the silo body to form a supply path, and a chevron-shaped rectifying plate is appropriately erected on both the left and right hypotenuse surfaces of the dispersion plate, and the bottom edge thereof is erected and fixed to the bottom slope of the left and right side walls of the silo body for supply. Since the passage is divided, the total weight pressure of the powder and granules in the silo body is evenly divided, and the partially solidified powder and granules are pulverized, making the flow uniform, and the supply amount is continuously constant. It can be smoothly fed into the screw shaft without clogging, and has the effect of being able to take out and supply the appropriate amount from the silo body at any time.

[Brief explanation of the drawing]

Figure 1 is a side view of the proposed silo for powder and granular materials, with a portion cut away vertically. FIG. 2 is a longitudinal sectional front view, and FIG. 3 is an enlarged longitudinal sectional front view of the main parts. In the figure, 1... silo body, 2... dispersion plate, 3...
...straightening plate, 4...screw shaft.

Claims (1)

[Scope of utility model registration request] The bottom of the silo is molded into a square shape, and the screw shaft is placed at the top of the bottom of the silo.
A dispersion plate with a chevron-shaped cross section is installed across the front wall and the back wall of the silo body to form a supply path, and rectifying plates with a chevron-shaped cross section are appropriately installed on both the left and right hypotenuse surfaces of the dispersion plate. A silo for powder and granular materials whose bottom edge is fixed upright to the bottom oblique wall of the silo body to divide the supply path.