SU1443963A1 - Installation for treatment of loose materials - Google Patents

Abstract

The invention relates to installations for the grinding of bulk materials, mainly cakes for the synthesis of artificial diamonds. The aim of the invention is to increase reliability and productivity. The installation is additionally equipped with a device 3 for cleaning graphite surfaces from graphite, which is made in the form of an inclined drum with a partially perforated surface and a loading and unloading hatch mounted in a closed housing 9 with the possibility of rotation around the horizontal axis on shaft bearing blades, while the case is equipped with bunkers for separate unloading of specs and graphite, and the bunker unloading processed specs through trans The port of § 5 and the storage bin 48 is connected to the feed window of the crusher 40. 10 Il. (L

Description

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The invention relates to an installation for treating bulk materials, including the preliminary removal of graphite from the surface of cakes (a product of the synthesis of superhard materials, such as diamond), the subsequent grinding of these specimens and the classification of the ground product, and can be used in particular in enterprises that specialize in ( Super hard materials.

The purpose of the invention is to increase reliability and performance.

FIG. shows a plant for processing bulk materials; general view; figure 2 is the same, top view; Fig. 3 shows a device for removing graphite from the surface of cakes, a general view; figure 4 - transporting device installation, General view; on fig.Z - boot device, cut; Fig. 6 shows a device for moving a drum manhole cover, a slit; 7 - vibrator, general view; on Fig - drum, obgvdy view; figure 9 - section aa on Fig; Fig. 10 is a longitudinal wall of a drum with a perforated surface. The installation contains a device

The grinding of bulk materials, which by means of a driving conveyor device 2, is connected to a device 3 for preliminarily removing graphite from the surface of specs. The device for preliminary removal of graphite has a hopper 4 connected

with conveyor 5 for lifting the initial product. The apparatus comprises a drum 6 rotating about a horizontal axis for loading the processed material into it. For opening and closing the drum cover 7, there is a device 8 with which the movement of the cover of the hatch is carried out.

The drum is installed in a hermetic case 9 of the device, preventing the dustiness of the production room with graphite. In the lower part of the body, discharge bins 10 and i1 are installed under the drum to discharge, respectively, the processed cakes and graphite removed from their surfaces. Under the discharge bunker

I1 installed the container 12 to unload the graphite into it, and. Under unloading

a hopper 10 has a pipeline 13 for transferring the processed cakes into an intermediate bunker 4. This bunker is connected to a transport device 2,

The shaft I5 of the drum 6 is installed horizontally in the cavity of this drum with the help of flanges 16 located between the thrust necks of the shaft. The angle of inclination fpantsy corresponds to the angle of inclination of the drum relative to the longitudinal axis of the shaft. The shaft with these flanges and fasteners is fixed on the end walls 17 of the drum.

On the drum shaft between the flanges, two blades (kerchiefs) 18 are installed in diametrically opposite directions. They can be fixed oppositely or displaced one relative to another along the shaft (fig.Z In this case, these blades are made flat. In general, they can have a different profile and configuration, as well as more. The drum is made of a collective and multi-faceted in cross section , in this case, octahedral. It has seven longitudinal walls 19 of which the surface (zone B) has through holes for the passage of graphite through them, separated from the surface of the specs. Eight longitudinal wall 20 does not have x apertures. The longitudinal wall 19 of the drum by means of fixing elements secured to the end walls 17.

Through holes are not made on the entire length of the longitudinal walls of the drum. They are located in the zone of the discharge bunker 11 (Fig. 3), where the discharge of graphite takes place after its removal from the surface of the spec. In the area of the discharge hopper 10 (fig.Z) on the longitudinal walls of the drum holes are missing. This does not allow, when the reel separates from the behavior of the cakes, the graphite enters the discharge bin 10, which is designed to unload the processed clumps. Thus, an effective separation of two different products occurs.

For the purpose of more efficient mixing of the processed product on the inner surfaces of the longitudinal walls 19, longitudinal ribs 21 are installed. In this embodiment of the device, these ribs are made in the form of longitudinal flat strips installed perpendicular to the longitudinal walls of the drum. In general, they can have a different profile, configuration, amount, and also the angle of inclination to the longitudinal wall of the drum. On the two longitudinal walls of the drum, adjacent to the wall in which the hatch is made for loading and unloading the product, there are no longitudinal ribs 21. This is done so that when unloading the processed product from the drum, it can flow freely into the unloading hatch.

The clamp 7 is mounted in guides 22 located on the outer surface of the drum 6. The clamp is connected to a movable rod 24 mounted in the cylinder 25, also attached to the outer surface of the drum 6, by means of a ring 23. On the stem there is a spring 26, and in the cylinder on the side facing the drum, coaxially with the longitudinal axis of this cylinder, there is a groove, into which the pin 27 enters,

On the outer side of the drum, on one of the shaft ends, there is a cylindrical guide 28 fixedly mounted on the floor, on the outer surface of which a bar 29 is located. An inner cup 30 is mounted on the sushion guide, on the outer surface of which there is a screw groove. The beaker has the possibility of longitudinal movement relative to the cylindrical guide and the bar.

On the fixed shaft support, an outer cup 31 is fixed, on which sleeve 32 is placed, having the possibility of rotation around its longitudinal axis in one direction. On the outer surface of the sleeve is fixed ring 33 with a latch 34, which interacts with the helical groove of the inner Cup 30.

On the device side for opening

nor -close the cover shaft is made hollow. Between the drum and the shaft support there is a hole in the shaft in the radial direction. In this hole and on the outer surface of the drum are blocks 35 and 36, respectively. The end wall of the inner Cup 30 and the rod 24 are connected using a rope 37, which passes

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through the hollow cylindrical guide 28, the hollow end of the shaft, blocks 35 and 36. A protective cover 38 is installed on the sleeve 32. The conveyor 3 and the body 9 of the device 3 are connected by a pipe 39.

A device 1 for grinding bulk materials comprises a crusher 40, a vertical vibratory elevator 41, a block of sieves 42 and a separating device 43, for example an electromagnetic separator. These mechanisms are connected to each other through pipelines that allow the process to be carried out in a confined space. Containers 44-46 are installed on the graphite separating device to unload the crushed product and separate it from it.

A loading device 47 is located above the crusher 40, containing a storage bin 48 and a feeder 49. The storage bin is connected to the transporting device 2.

Transportation of the processed products by means of a vertical vibrator is carried out by moving this product along the load-carrying body in the form of a pipeline 50, which is located along a helix having an elevation angle.

The container carrying body is mounted on the housing 51, which, in turn, is mounted with or by means of springs or any other elastic elements to the supporting structures. A housing with a cargo carrying body fixed on it is connected with a complex oscillatory motion, which is composed of torsional oscillations around the axis body and vibrations directed along its axis,

In particular, inertial or electromagnetic vibrators are used as vibrodrive 52, which informs a helical vibroconveyor for oscillatory movement and movement of a product along a helical line.

The device 3 for removing graphite from the surfaces of the cakes and the device 1 for grinding granular materials are connected to each other using the conveyor of device 2. This device is implemented, for example, in the form of a bucket conveyor having a drive 53. The loading device can be installed in one of the

the following two places: between the discharge window of the device for removing graphite and the transporting device, or between this transporting device and the loading window of the crusher of the device for grinding granular materials.

The storage bin 48 and the feeder 49 are mounted on the frame 54. The feeder is a vibrating device with a load-carrying organ positioned along a helix with a lifting angle. The principle of its operation is similar to the principle of operation of a vertical vibrator. The feeder has a drive 55 and a discharge pipe 56. The operation of the installation is carried out using the control panel 57.

Lini works as follows.

Empty containers 12, 44, 45 and 46 are installed under the discharge windows of both line devices. The initial product (specs) is loaded into the loading hopper 4. From this hopper, the product is transported using conveyor 5, for example, in the form of a 58-type elevator bucket, It is fed into the pipeline 39, from which it is fed with a sucker through the loading hatch to the rotary drum 6. At the same time, the drum must be stopped in the initial position and positioned so that the loading hatch is in the extreme upper position.

Using device 8, open the cover 7 of the hatch. The drum is loaded with the original product. The hatch cover is then closed and the drum is driven into rotation with the actuator PROMOTION 59. When the drum is rotated and the abrasives rub together, their graphite is removed from their surfaces and it flows out through the hole in the side stack of the drum. The resulting graphite enters the container 12,

After the time specified by the technological process, the lock 7 of the loading hatch is opened and, when turning the shaft with the drum, the processed product (specs) is loaded. After unloading this product, the drum is stopped in its original position. The processed product through the pipeline 13, for example, by gravity enters the intermediate hopper 14,

from which, with the aid of the transport device 2, it is fed to the storage bin 48 of the loading device 47, the Transport device may be provided in the form of a belt bucket conveyor. From the storage bin the product enters the feeder 49.

The feeder is designed for uniform and metered supply of the product to the crusher 40 of the device. Depending on the arrangement of the mechanisms, the feed of the processed product from the feeder to the crusher can be carried out directly or through the vibrator 41. In this embodiment, the feeder is installed above the crusher. The latter can be used of any type, such as jowls.

In the crusher, the grinding of cakes, from which the graphite is removed, takes place. The product crushed in the crusher via pipeline 60 enters one of the sections 61 of the receiving chamber of the vertical vibrating lifter 4). In the case 51 of the hoist are located the pipeline 50, running up the helix. These pipelines move the processed product to the upper part of the vibrator. The number of pipelines is set depending on the number of fractions of the material being processed.

Coming out of the vibrator, the product passes through conduit 62 to a block of sieves 42, in which it is divided into a predetermined number of fractions according to the size of the particles. In this case, the processed product is divided into three fractions: coarse, mid and small.

The coarse fraction of the product from the sieve unit through conduit 63 returns to another section 64 of the receiving chamber of the vibrating lifter 1 and returns to the crusher through one of its pipelines for re-grinding. The medium fraction from the sieve block through the pipeline enters the unloading in the removable container 44. The small fraction of the product from the sieve block enters the separating device 43, in which the graphite containing the metal catalyst and diamond is separated in the spec.

The purified product from the separating device through the pipeline enters for unloading in a removable container 45.

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The graphite separated from this product is piped for discharge into a removable container 46. In the total mass of the product to be ground, this graphite is an insignificant part.

Depending on the mass of graphite contained in the sinter volume, separation of the fine fraction of the crushed product may be an optional operation. Therefore, there is no need to use a separating device. In this case, the separating device must be turned off, and the product from the sieve unit must be sent directly to the container. When filling the container

Ditch 12, 44, 5 and 46 with the paged product are replaced by empty containers. The work cycle is subsequently repeated in the same way.

When assembling equipment, both devices of the line can be located coaxially (as in this embodiment, parallel or perpendicular to each other, and also above each other. In addition, there can be a different quantitative ratio of devices: One device for preliminary removal of graphite interacts with several devices for grinding the product and vice versa.

Depending on the design requirements, the supply of the processed product from the discharge bin 10 to the intermediate bunker 14 can be carried out using a driving conveyor device, for example, a belt conveyor.

The use of the proposed plant for the processing of bulk materials provides the following advantages compared with the known installations: increase in productivity due to the fact that there is no need to grind graphite removed from the surfaces of the specs, thus there is the possibility of processing an additional amount of suitable product; the increase in the service life of the mechanisms due to the fact that these mechanisms can work additional time, which is necessary for processing a significant mass of the removed graphite; reduction of the consumption of chemical reagents during the processing of the crushed product with a mixture of chromic anhydride with sulfuric acid, which is due to the fact that preliminary removal of graphite from the surfaces of cakes and the subsequent separation of graphite contained in the volume of these cakes by using a separating device provides better quality graphite removal before subsequent by treating the ground product with chemical reagents.

Claims (1)

Invention Formula An installation for processing bulk materials, mainly synthetic diamond synthesis pods, containing a crusher with loading and unloading windows, a vibrating ram, a block of sieves and a grinding product separator, characterized in that, in order to increase reliability and performance, it is additionally equipped with cleaning of graphite surface from speck made in the form of an inclined drum with a perforated side surface and a loading and unloading hatch mounted in a closed housing with rotation around the horizontal axis, and the case is equipped with bunkers for separate unloading of processed specs and graphite, while the unloading bunker of the processed cores is connected to the crusher loading window by means of a conveyor and a storage bin. a 7 53 d l 7 " jig FIG. five 6 Jj 6 Faye. 7 21 go  Fig.8 Aa by verne then 20 FIG. 9 fig.Y.