SU1503997A1 - Automatic line for preparing multicomponent powder mixtures - Google Patents

Abstract

The invention relates to powder metallurgy and can be used in installations for the preparation of multicomponent mixtures. The purpose of the invention is the expansion of technological capabilities by increasing the number of components of the mixtures. The components of the mixture are fed to the unloading devices 1, 2, 10-14, 30, and 31, after which the elevator 7 and the separate loading devices 15-19 are fed into the storage bins 8.20 -24, while the bulk of the averaged powder is loaded from the averager by the elevator 7 into the feed bin 8, and a part into the hopper 35 for preparing the ligature. If necessary, the main component can be supplied to pressurized storage bins 5 and 6 for storage in a nitrogen atmosphere. The components of the ligature after weighing by the dispensers 33, 34 and 37 are fed by loading devices 40, 41 and 43 to the preliminary mixer 38, and then to the final master ligature mixer 42. The loading elevator 45 delivers a ligature from the mixer to the feed bin 44. After filling the feed bins 8, 20-24 and 44 with raw components, the level sensors issue a permit for simultaneous dosing with automatic weighing batchers 9, 25-29 and 46. The weighed components are discharged into the receptacles 48-54 and in them are moved to the discharge area in the collection container 64, while the duplicate containers 55-59 occupy the working position under the dispensers 9, 25-29 and 46. The container passing over the collection capacity 64 is subsequently unloaded into it, after what is the capacitance moves in mixers setting zone 63. After loading mixers and compounding it is discharged into the storage container representing an interchangeable silos presses. Combining the supply bins into groups serviced by one dosing unit and supplying the line with an individual suspension container and a collection capacity allows us to increase the number and range of simultaneously used components to fourteen. 1 hp f-ly, 1 ill.

Description

31503997

The SCs are unloaded into the receiving containers 48-54 and transferred to the discharge area in the collection container 64, while the duplicate containers 55-59 occupy the working position under the dispensers 9.25-29 and 46. The containers passing through the container 64 it is sequentially discharged into it, after which the tank is moved to the installation zone Q of the mixers 63. After the mixers are loaded and the mixture is prepared, oiiirpy is fed into the supply tanks, which are replaceable bunkers of the presses. Combining the supply bins into groups serviced by a single dispenser, and supplying the line with an individual suspension container and an assembly capacity, allows you to increase the number and range of simultaneously used components to fourteen.1 Cpf, 1 slug.

The invention relates to powder metallurgy, in particular, to mustache preparations for the preparation of powders, their dosing and the preparation of a mixture,

The invention is an extension of the technological capabilities of the line by increasing the number of components of the mixtures.

The drawing shows the kinematic scheme of the proposed line.

The automated line includes devices for the preparation and metering of the main component: unloading banks 1 and bags 2, screening 3 and averaging 4, storage bins 5, 6 and loading elevator 7 of the feed bin 8, as well as an automatic weighing dispenser 9 with a discharge gate -feeder. The line also includes discharging devices 10-14 of alloying elements with separate loading devices 15-19, consumable bins 20-24 with locking feeders and weighing batchers 25-29 with locking bolts.

The line also includes an automated set of equipment for the preparation of a master alloy, which consists of the discharging devices 30 and 31, the wiping sieve 32, the dispensers 33, 34, the feed hopper 35 of the main component with the charging device 36 and the dispenser 37, and the mixer 38 with the feeder 39, 40, 41 mixer 42 with a feeder 43, feed hopper 44 with a gate feeder of the loading plug 45 and weighing batcher 46.

All weighing weighers, except 33, 34, are grouped along the branch of the conveyor 47 with closed guides, with a suspension 5 located below each batcher 9, 25-29, 46

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48 to 54 for receiving the weighed components included in the conveyor 47, and on the opposite branch of the conveyor 47 there is a duplicate receiving container 55-61.

A lower level transport line 62 is located below conveyor 47, passing over mixers 63, a row of which consists of six devices. On line 62 is mounted a container 64 for collecting weighted components, on which two pas, per, are arranged symmetrically.

The collection container 64 is equipped with a dust collecting device with an aspiration nozzle, which in the initial position of the container 64 is connected to the aspiration system 65.

Automated line works as follows.

The components of the powder mixture in the package are delivered from the warehouse by conveyors (not indicated) and are fed to the unloading devices 1, 2, 10-14, 30, 31, after which the separate loading devices 7, 15-19 are fed to the feed bins 8, 20-24 The main component (for example, iron powder) passes through the screening device 3 and averaging 4 before loading into the hopper 8, while the bulk of the averaged powder is loaded from the averaging device by the elevator 7 into the feed hopper 8, and a part to the hopper 35 for preparing ligatures boot mouth oystvom 36.

If necessary, the averaged main component can, upon command from an automatic control unit (not labeled), be supplied to sealed storage bins 5 for storage in a nitrogen environment, creating a daily (2 shift) bulk material supply.

The preparation of the mixture (mixture) is preceded by the preparation of ligatures. Preparation of the ligature is carried out on a separate area isolated from the mixture-preparation. In this case, the explosive components in the package pass the defrosting devices 30, 3 by the process (for example, zinc stearate) passes an additional wiper 32, after which weighted portions of the components 33, 34, 37 are supplied by the loading devices 4 41, 43 to the mixer 38 pre-mixing and then the feeder is fed to the mixer 42 of the final preparation of the master alloy. The boot lift 45 delivers the ligature from the mixer to the feed hopper 44.

After filling the storage bins 8, 20-24, 44 with the initial components, the level sensors of the bins issue an automatic control unit (not marked) with the permission for simultaneous batch dosing with an automatic weighing dispenser 9, 25-29, 46 of the main component, alloying elements and ligatures.

The alloying elements are weighed out of their elements supplied from group supply bins 21–23 by dispensers 26–28 with sequential unloading of each batch of elements into the receiving container 50–52 and parallel with the weighing of the main component of the remaining alloying elements with individual feed and supply bins and ligatures , with the 1st, the unloading is completed by the dispensers 9, 25-29, 46 at the same time into the receiving container 48-54, which was previously fed under the dispensers by the conveyor 47, and the number of the receiving container on each branch of the tract The exporter corresponds to the number of weight dispensers, while the volume of each unit of container corresponds to the volume of weighed and loaded portions of components. The pitch between the packagings is equal to the pitch between the respective dispensers, to which the receiving pack 48-54 of one branch and the pack 55-61 of the second branch of the conveyor 47 alternately become working.

Thus, the largest number of components can be loaded into the receiving container 48-54 and the upper level conveyor 47 is transferred to the unloading zone for the national team.

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the container 64, after which the duplicate receiving container 55-59 of the opposite branch of the conveyor 47 occupies the working position under the dispensers 9, 25-29, 46 for the new weighing cycle. The tare 48-54 portions of the components suspended vertically suspended on the conveyor 47 of the upper level are mixed into the discharge zone into the collection container 64, while the duplicate container 55-59 occupies the working position under the dispensers 9, 25-29, 46.

Passing over the team with a capacity of 64 tare 48-54 with components, they are consistently unloaded into it, with components with a high specific density being loaded into one isolated cavity, and lungs - into another in order to prevent dust emission.

Separate adjustable outlets of container 64 improve the conditions for the outflow of bulk material and mixing in mixers 63, as they provide a simultaneous and proportional supply of components with high and low density.

The collection tank 64 serves a series of mixers 63 consisting of six devices upon a command from the automatic control unit.

After loading the mixers 63 and preparing the mixture, it is discharged into the supply tanks, which are replaceable press bins.

The use of this line at the site of preparation of the charge allows to increase the number of simultaneously used components to 14 and to ensure automatic maintenance of the mixers at least six compared with the prototype.

The entire line is controlled from a single automatic unit (operator's workplace of the breeder).

Claims (1)

1. Automated line for the preparation of multicomponent powder mixtures, containing unloading, screening and averaging devices of the main component, feed bins with separate devices for loading the main component and alloying elements with appropriate weighers, installed Bflojjb conveyor belts, pi mixers and mixers section of ligatures, characterized in that, in order to expand technological capabilities by increasing the number of components of mixtures, it is equipped with two hermetically sealed storage bins of the main component with nitrogen feed, a discharge elevator connecting these bins to the feed bin, a suspended collecting tank installed with the possibility of moving over mixers and an individual suspended table c a swarm located under each weighing batcher and mounted on a belt conveyor made with closed guides, while the feed bins with separate loading devices of each bunker are combined into groups connected via separate feeders to the same weighing batcher in the group. 2, the automated line according to claim 1, characterized in that the suspended collecting container is made with two loading slots.