SU1736860A1 - Loading shut-off device for loose materials - Google Patents

Abstract

Use: batch delivery of materials and free loading of bulk materials. SUMMARY OF THE INVENTION: The device comprises a housing with a cup in which loading windows are made, a shut-off member placed inside the cup with the possibility of vertical reciprocating movement, an auxiliary shut-off member mounted inside the hollow stem, which is a shut-off member and a corona-shaped flow divider with elastic sealing element, made in the lower part of the valve. In the rod above the flow divider, discharge windows are made, which are blocked by an auxiliary locking element during its movement relative to the rod. 2 Il.

Description

The invention relates to the technique of storing and transporting bulk materials and can be used in devices for batch delivery of materials, as well as for dust-free loading of materials in all areas of the national economy.

A loading valve for bulk materials is known, comprising a housing with a metal seat and a conical locking element in contact with it associated with a reciprocating drive. The saddle is made conical in shape corresponding to the shape of the locking element.

Also known is a valve shutter for bulk materials, comprising a casing with outlet openings, a gate for blocking these openings and a rod for connecting the gate with a drive for moving it, the casing being removable, the gate is placed inside the casing, and the screws are inside

the gate, in addition, in the casing made the window.

The purpose of the invention is to improve the reliability of blocking the material flow and wear resistance by eliminating the ingress of material particles into the zone of interaction between the closure member and the saddle.

The goal is achieved by the fact that a device comprising a body with a saddle and a glass in which loading windows are made, and a cylindrical locking member installed in the glass with the ability to interact with the saddle in vertical reciprocating movement, is provided with an auxiliary locking element, a flow divider placed in the lower part of the locking member, and the elastic sealing element on the side, interacting with the saddle, the surface of the dissector, the locking member is made in the form of a hollow ka with side discharge windows above the divider, divider

cl

with

Xi

with about

00

oh oh

the flow is made corona-shaped, and the auxiliary shut-off element is placed inside the rod with the possibility of relative movement and overlapping of the discharge ports.

Figure 1 schematically shows the device section; figure 2 - valve, vertical section.

The locking device consists of a transitional device 1 installed in the output neck of the hopper 2 and coaxially located underneath the valve 3 mounted on the flange 4 of the loading tank 5 and serving as a sealing element. The transition device 1 includes a conical case 6 forming the surface A of which is inclined at an angle chosen in such a way that half of it is greater than the angle of repose of the bulk material. The flange 8 is attached to the outer side of the conical case 6 by means of ribs 7 to connect the adapter 1 to the hopper 2. The lower part of the case 6 is connected to a cup 9 made with loading windows 10 and a baffle plate 11, which is fixed in its upper part to form pocket 12 above boot windows. Inside the cup 9 there is a captive bunker shutter 13c with handles 14, which can reciprocate relative to the cup along its vertical axis in order to close off the loading windows and cut off the material flow, the initial position of the bunker shutter being the topmost one.

In the side of the conical housing 6 as a backup device for the selection of material set 15c withdrawal captive valve 16.

The valve 3 (Figures 1 and 2) consists of a pneumatic cylinder 17 containing a housing 18 connected to each other to form an airtight cavity, connected to a bunker closure 13 in such a way that the latter has the ability to slide along the outer cylindrical part of the housing, the sleeve 19 and a cover 20 with a saddle 21. Inside this cavity is placed a rod 22, which is a filling nozzle, and a piston 24 mounted on it with the help of stop rings 23. Inside the stem 22 there is a hollow auxiliary locking element 25 with a lower cutting edge 26 and a flange 27 in the upper its parts allowing the auxiliary locking member to be freely held on the upper edge 28 of the stem. In the lower part of the stem 22 with lateral discharge ports 29, a flow divider 30 is installed with a corona-shaped cutting edge 31 to hold the protective layer of material 32 on it and the annular groove 33 with a sealing elastic element 34, which interacts with the device 21 when the device is in operation. covers 20,

The inner cylindrical surface of the housing 18 is stepped.

0 to allow the auxiliary closure member 25 to move together with the stem 22 and to limit its movement downwards. The lower part of the housing 18 and the upper part of the cover 20 are made with

5 flanges 35 and 36, respectively, in which channels 37 and 38 are provided for supplying compressed air by means of electronic distributors 39 connected to a compressed air system (not shown).

The extreme positions of the piston 24 are monitored by sensors 40 and 41 mounted on the stud 42 and can interact with the control elements 43 mounted on the push rods 44 mounted on the flanges 35 and 36 of the housing 18 and the cover 20, respectively.

Boot locking device for bulk materials is as follows.

0 Bulk material is fed through the hopper 2 to the adapter 1, and after opening the bunker gate 13 to the valve 3 of the device. At the same time, a signal is given to open the upper electro-pneumatic 5 of the distributor 39. Compressed air through the channels 37 of the housing 18 enters the upper cavity of the pneumatic cylinder 17. The piston 24 with the rod 22, the auxiliary locking element 25 and the material moves

0 down, together descending to the step 45, made on the inner surface of the housing 18. Next, the auxiliary locking element 25 is held by the flange 27 on the step 45, and the rod 22 and the material continue to move downward until the piston stops into the cover 20. In this case, the side discharge windows The 29 rods are released from the cutting edge 26 of the auxiliary locking element 25 for the material to exit under the force of gravity to the loading container 5.

When the material is discharged through the side discharge ports 29, part of it is held on the reflective surface of the flow by cutting the corona-shaped cutting edge 31 on the reflecting surface 30, forming a protective layer of material on it, which prevents it from rapid wear, increasing the service life of the device. In its lowest position, the piston 24 comes into contact with the pusher 44, with

In this case, the control element 43 fixed to it, going down, goes out of the zone of interaction with the sensor 41. The electrical circuit is broken, the signal about the position of the piston enters the control system (not shown) of the valve 3. The device is fixed in the open position. The material under the force of gravity passes through the side discharge ports 29 and fills the loading container 5, the cavity of the auxiliary locking element 25, the discharge opening of the transition device 1, forming the pocket 12 under the baffle disk 11 with a volume larger than the volume of the material pushed out of the cavity. the locking element when moving the piston 24 to the extreme upper position.

After the signal for removing material from the charging tank 5 arrives, the lower electropneumatic distributor 39 turns on, the compressed air enters the lower cavity of the pneumatic cylinder 17, moving upward the piston 24 with the rod 22.

Prior to the interaction of the upper edge 28 of the stem with the flange 27 of the auxiliary locking element 25, the latter remains stationary, blocking the material flow as the cutting edge 31 of the material flow breaker 30 approaches the fixed edge 26 of the auxiliary element. By the time of their interaction, the cutting edge 26, coming over the corona-shaped edge 31, completely covers the side discharge ports 29, excluding the ingress of material particles on the working surfaces of the sealing elastic element 34 and the seat 21 when they interact.

As the stem 22 moves upwards, the material from the zone of interaction of the sealing elastic element 34 with the seat 21 enters the space of the loaded container 5 released by the material flow divider 30, which also prevents material particles from entering the sealing surfaces 34 and 21.

The excess material from the cavity of the auxiliary closure member 25 is squeezed by the material flow divider 30 into the cavity of the pocket 12.

When the piston reaches 24 extreme

The upper position and the sealing of the load container 5, like the sensor 41, the sensor 40 is activated, which controls the extreme upper position of the piston 24,

a signal to the control system (not shown) of the operation of the valve 3 for the subsequent supply of compressed air to the hermetic tank 5 for pumping material to the consumer.

The proposed device excludes

the penetration of material particles into the zone of interaction between the sealing surfaces — the closure member and the saddle — thereby increasing the reliability of blocking the material flow and durability. Besides

Claims (1)

simplified maintenance of the device. Claims of loading and locking device for bulk materials, comprising a housing with a seat and a glass, in which loading windows, and a cylindrical closure member mounted in the glass with the ability to interact with the saddle with vertical reciprocating movement, characterized in that in order to improve the reliability of blocking the material flow and wear resistance by eliminating the ingress of material particles into the zone of interaction between the closure member and the seat, it is equipped auxiliary locking element, a flow divider placed in the lower part of the locking member, and an elastic sealing element on the side, interacting with the saddle, surface the divider, the locking body is made in the form of a hollow rod with side discharge windows above the divider, the flow divider is made crown-shaped, and the auxiliary locking element is placed inside the rod with the possibility of relative movement and overlapping of the discharge windows.