SU1080020A1 - Device for loose material batching - Google Patents

Abstract

DEVICE FOR DOSING OF BULK MATERIALS, containing a hopper with a discharge window, under which is placed a horizontal drum feeder, the end walls of which are fastened with radial partitions and placed between them on the periphery of the end walls of the first rollers, which are connected to the second rollers forming the outer cylindrical surface of the outlet, the rollers are installed with the possibility of interaction with the tape valve gate of the discharge window of the bunker, and the drive of the feeder, characterized by the fact that In order to increase the dosage uniformity, a fixed cylinder with a vertical through slot is installed concentrically inside the drum feeder, and there are additional rollers on it, one of which is above the upper edge of the slot that is distant from the discharge window, and the rest are. on the outer cylindrical surface of the fixed cylinder of the unloading window of the bunker, on each partition, the belt valve is attached to the bottom with the additional rollers, and the second rollers between (L and hinged and equipped with a support, which is made in the form of guide rollers covered by an endless belt, fixed along an arc of a circle under the unloading window of the bunker on the side of fastening of the tape valve.

Description

The invention relates to mechanical engineering and can be used for dispensing bulk materials. A dispensing device is known that includes a hopper and a cylindrical feeder placed under it with a loading and unloading window tl. A dispensing device for bulk materials is known that contains a hopper with a discharge window under which the horizontal drum feeder, the end walls of which are fastened by radial partitions and first rollers placed between them on the periphery of the end walls, the cat ry connected to the second rollers, the generators outer cylindrical surface of the compartment, wherein the rollers are mounted for engagement with belt unloading hopper gate valve and actuator box feeder r23. A disadvantage of the known devices for dosing bulk materials is the unevenness of the material unloading even with continuous rotation of the feeder. The unevenness of unloading is caused by the fact that radial partitions prevent the material from unloading in the initial stage of the compartment, while in the final stage, when their angle of inclination is equal to the material's angle of slip on the metal, they contribute to the concentrated dumping of the material on the conveyor. This negative effect enhances the centrifugal force at increased rotational speeds. The purpose of the invention is to increase the dispensing rate. This goal is achieved by the fact that in a cylindrical dispenser in a device for dispensing bulk materials, there is a hopper with a discharge window, under which is placed a horizontal drum feeder, the end walls of which are fastened by radial partitions and the first rollers located on the periphery of the end walls which are connected to the second rollers forming the outer cylindrical surface of the compartment, the rollers being installed with the possibility of interaction with the clamping valve unloading full-length window of the bunker, and drive of the feeder, inside the drum feeder there is a fixed cylinder with a vertical longitudinal through slot, and additional rollers are installed on it, one of which is above the upper edge of the slot, and the rest is on the outer the surface of the stationary cylinder from the side of the discharge window of the bunker, with each valve on the bottom fixed with the ability to interact with the longitudinal rollers of the belt valve and additional rollers between the battle and with the corresponding first roller are pivotally connected and provided with a support, which is made in the form of guide rollers covered by an endless ribbon, fixed along an arc of a circle under the discharge window of the bunker on the mounting side of the tape valve. Fig. 1 shows one of the compartments of the paired cylindrical dosing unit; Fig. 2 shows another compartment, the compartments of which are shifted in the loading-unloading phase, in relation to the compartments of the compartment; Fig, 3 - dispenser, front view, (with the scheme of the lateral round walls of the vessel and its supports). The dispenser has a hopper with a discharge window 1, which is equipped with a curtain of spring-loaded fingers 2, a fixed cylinder 3, the cylinder consists of lateral circular walls 4 with trunnions 5, the side walls 4 are connected with each other by a vertical cylindrical surface 6, which is made through a longitudinal slot 7, On the outer side of the cylindrical surface b, additional rollers 8 are arranged along the arc of a circle, the axes of which are fixed in the lateral circular walls 4 of the stationary cylinder. The trunnion 5 is hingedly supported by a movable drum feeder 9, which receives rotation from a drive (not shown), the feeder 9 is divided by radial partitions 10 into compartments (sectors). To the bottom of each partition is attached at one end a piece of tape 11, equal in width to the width of the internal (working) compartment space. It plays the role of its belt valve gate, pinching this opening between two adjacent partitions 10 during the loading of the compartment with bulk material. An additional roller 12 is installed above the top of the slot 7 remote from the discharge window, the axis of the roller 12 is also connected to the side walls 4 of cylinder 3. The roller 12 serves to transfer the free end of the valve bolt 11 after lowering it into the stationary cylinder 3ff again inside that compartment it must overlap during the period of its loading. In the round side walls of the outer movable cylinder 9, the first are reinforced within each compartment.

rollers 13; The axes of the second rollers 14 are pivotally connected to their axes (rollers 14 are not connected to the side walls of the outer cylinder 9 I. Rollers 13 and 14 interact when loading the drum feeder section and the outlet openings of the outlet. 1 bunker with a valve 15. For The rollers 14 are provided with a cylindrical shape in this stage of the dosing unit operation on the bunker under the unloading JOKHOM 1 from the mounting side of the bolt 15, along the arc of a circle, the guide rollers 16 are covered by an endless belt 17. The last roller 18 is provided with a tensioning device. Nirni connected rollers 14 after nachgsha discharge compartment receiving the free position and does not interfere with the passage of bulk material unloaded through the compartments positioned in a fixed cylinder.

The bulk material enters the receiving funnel 19 installed above the conveyor 20. For smooth introduction of the rollers 14 to the belt 17, a guide 21 serves. To change the area of the lower outlet slit of the stationary cylinder 3 and thereby control the uniformity of the dispenser of the dispenser, the valve 22 serves as a cylindrical forksh, it is fixed from the inside of the stationary cylinder with the help of studs which allow the valve to change position. In order to reduce the dust-forming dispenser, the dispenser is covered with skin 23. With the outer cylinder 9 continuously rotating, the valve valve 15 of the hopper coincides with the loading opening of the compartment and lowers inwards with its free end. Bulk material fills compartment. It presses the valve cushion 11 of the compartment to the rollers 8 of the stationary cylinder 3, thereby covering this opening of the compartment. The valve casing 15 of the hopper 1 is pressed against the bulk material to the rollers 13 and 14 of the rolling drum feeder 9, which

in turn, interact with the tape 17, covering the rollers 16 and 18.

At Deshneiyum vessel rotation

rollers 13 and 14 overlap the outlet of the hopper by means of the valve bolt 15. After the valve bolt 11 of the compartment coincides with the upper loading slot in the stationary cylinder 3, the free end of the bolt 11 is lowered inside

stationary cylinder 3, where the bulk material enters from the feeder compartment 9. Through the lower discharge slot of the stationary cylinder

3, the bulk material flows under its own weight into the compartments of the movable cylinder 9 that are unloaded before. The rollers 13 and 14 of these compartments, after unloading the latter, take up a free position and do not prevent material from spilling through the compartment. Short-term narrowing of the lower discharge opening of the stationary cylinder 3

The rotating baffle of the outer cylinder 9 does not affect the continuity of the material spilling into the receiving funnel 19 of the conveyor 20. With the endless belt 17, they roll into the tape 17 by means of the guide 21 and, after loading the compartment, overlap the valve gate 15 of the hopper 1 of the dispenser.

The use of the invention allows for bottom discharge.

sections of the drum feeder, in which, there is no effect of the variable position in the space of the radial partitions and the centrifugal force on the uniformity of the vessel unloading

cylindrical dispenser. Due to this, conditions are created for the uniform flow of bulk material to the conveyor. The use of Hc mobile dispenser of a vessel consisting of

two compartments, with a phase shift loading - unloading compartments (Fig. 1-3} will provide even more uniform loading of the conveyor belt.

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Claims (1)

(57) DEVICE FOR DOSING OF BULK MATERIALS, containing a hopper with an unloading window, under which there is a horizontal drum feeder, the end walls of which are fastened by radial partitions and the first rollers placed between them on the periphery of the end walls, which are connected to the second rollers forming the outer cylindrical surface of the compartment moreover, the rollers are installed with the possibility of interaction with the tape valve of the discharge window of the hopper, and the feeder drive, characterized in that. In order to increase dispensing uniformity, a stationary cylinder with a vertical through slot is concentrically mounted inside the drum feeder and additional rollers are mounted on it, one of them above the upper edge of the slot, remote from the discharge window, and the rest on the outer cylindrical surface of the stationary cylinder of the discharge side bunker windows, at the same time, on each partition from below, a belt valve shutter is fixed with the possibility of interaction with additional rollers, and the second rollers are interconnected st and with the corresponding first roller are pivotally connected and provided with a support, which is made in the form of guide rollers covered by an endless tape, fixed along an arc of a circle under the discharge window of the hopper from the side of the fastening of the valve shutter.