SU1456604A1 - Aspiration device for sheltering loose material transfer units - Google Patents

Abstract

The invention relates to the mining industry. The goal is to increase the efficiency and reliability of the device by reducing the amount of punching out of the casing and uniform distribution of the bulk material throughout the conveyor belt. The casing (K) mounted on the frame 1 of the conveyor with gaskets 5 contains the upper 2 and lateral inner 3 and outer 4 walls. At the top / f Y In the FTHT, an aspiration pipe 7 is fixed and connected through a window with its internal cavity. In addition, K is connected to a tray 6 for feeding material and has a transverse partition (P) 9 fixed inside it. The latter is installed at an acute angle to the conveyor belt, there is an arch-shaped cut-out at the bottom end, which is located convexly toward the top wall 2. The cavity K is divided into P 9 into zones of high 15 and low 16 pressure. In the upper part of the wall 3 under the pipe 7 are made additional. windows 12. When feeding material through tray 6, it is in contact with P 9 on the conveyor belt and blocks access of excess pressure to zone 16. Dust-laden air from zone 15 through the space between walls 3 and 4 and through additional windows 12 is withdrawn to nozzle 7 The arch-shaped cutout P 9 ensures the formation of a uniformly distributed bulk material on the conveyor belt 3 sludge. A (O 41b; n J.

Description

X

tPUfJ

The invention relates to mining and can be used to dedust the air when overloading bulk materials for bottling processes.

The goal and the invention is to increase the efficiency and reliability of the device by reducing the knocking out of the pouch from the casing and evenly distributing the bulk material along the conveyor belt.

Figure 1 shows the aspiration shelter, points of transshipment of bulk material, incision; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1,.

The aspiration shelter contains a casing mounted on the frame 1, a belt conveyor with a single upper wall 2 and side vertical. inner 3 and outer 4 walls, located in the lower part of the casing, seals 5, a tray b connected to the casing for feeding bulk materials and a suction nozzle 7 fixed to the upper wall 2 connected through the window 8 to the casing internal cavity. Inside the casing, it is rigidly fixed to the upper 2 and to the inner: lateral 3 walls a transverse partition 9, installed at an acute angle to the conveyor belt 10, close to the angle of repose of the bulk material, and at the lower end, an 11-shaped arch located convex part to the top wall 2 and directed in the direction of movement of the bulk material. At the same time on the inner side walls. 3, additional windows 12 are made under the aspiration pipe 7. The outer side walls 4 of the casing have wheels 13 mounted to allow the cover to move along guides 14 (for example, rails) mounted on the frame 1 of the conveyor. The transverse city 1 9 divides the internal cavity of the housing into zones 15 and 16 and underpressure.

Aspiration shelter works as follows.

During the period of operation, the bulk material is fed through the tray 6 to the conveyor belt 10. At the exit of the tray 6, the bulk material is distributed on the conveyor belt 10 in the form of a slide. At the same time, bulk material creates leather in the cavity.

ha ejection effect. However, the pressure increases not in the whole strip of the casing but only in the cavity 15 of the high, limited pressure limited by the inclined partition 9. The pressure increase in the cavity 15 is due to the fact that the bulk material in contact with the inclined partition 9i. blocks the access of overpressure into the cavity 16 of reduced pressure. As a result of the overpressure, air filled with dust from the cavity 15 of the high pressure penetrates through. an internal seal into the space between the vertical walls 3 and 4. Here, too, an overpressure is created. As a result of the created overpressure, the air, saturated with dust, again enters the high pressure through 15 additional windows 12.. The intake of dust-saturated air is. the additional windows 12 are cut as a result of the fact that in the area of the windows 12 there is created a discharge caused by the operation of the aspiration joint 7. From the cavity 16 of the reduced pressure, the air, filled with dust, does not flow into the meddu space by vertical walls 3 and 4, since there pressure is higher. An arch-shaped cut-out at the lower end of the inclined partition 9 contributes to the initial uniform distribution of the bulk material along the conveyor belt 10. The final distribution of the bulk material along the conveyor belt occurs when the inclined partition 9 passes through it. If a large mass of bulk material is fed through the tray 6 first, it slides over the top surface of the inclined partition 9, and then, after the main mass has been in place, rolls onto the conveyor belt, such as the inclined wall 9 and EET acute angle, soot- vetsTruyuschy angle of repose of the bulk feed material. Making a cutout 11 at the lower end of the inclined partition 9 in the form of an arcuate with apex directed in the direction of movement of the bulk material ensures that a uniformly distributed layer of bulk material on the tape is formed in the form. to natural, and reduces the breakthrough of dusty air from the cavity 15

1456

high pressure in the cavity 16 of the pressure of the pressure at the contact of the lower end of the transverse inclined partition 9. with bulk material,

During the repair or maintenance period, the aspiration shelter of the overload points is discharged along the rails 14 mounted on the conveyor frame using wheels 13 mounted on the side outer walls

Claims (1)

Claims. Aspiration shelter for bulk material transfer points, including a casing installed on the conveyor frame, having upper and side slots and inner walls, seals placed in the lower part of the casing fixed on the upper wall and connected to the upper wall 20 . 1456604 an aspiration pipe connected to the casing; a tray for feeding the bulk material and a transverse partition mounted on the upper wall inside the casing with a cut-out at the bottom end, characterized in that :, to increase the device's efficiency and reliability by reducing the dust from the housing and uniform distribution of the bulk material along the conveyor belt, the transverse partition is set at an acute angle to the conveyor belt, and cut out on its bottom end is made in the form of an arch located in verhch convex part in its wall, wherein in the upper part of the inner side walls of the housing under suction nozzle formed additional windows. eleven Figg 6-6 13