Method of filling big-bags with cullet

IPC classes for russian patent Method of filling big-bags with cullet (RU 2511307):

B65B1/22 - MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C0001440000; paper-bag holders as shop or office accessories A47F0013080000; apparatus for coating, e.g. by dipping, B05C; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B; nailing or stapling devices B25C, B27F; inserting documents in envelopes and closing the latter B43M0003000000, B43M0005000000; labelling B65C; wrappers, containers or other packaging elements, e.g. binders, closures, protective caps, B65D; transport or storage devices B65G; devices for handling sheets or webs of interest apart from their application in packaging machines B65H; applying closure members to bottles, jars or similar containers B67B; hand- or power-operated devices not attached to, or not incorporated in, containers or container closures for opening closed containers B67B0007000000; packaging of matches C06F; wrapping sugar during manufacture C13B0045020000; packaging of ammunition or explosive charges F42B0039000000; making containers or receptacles, see the appropriate subclasses);

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FIELD: process engineering.

SUBSTANCE: invention relates to filling big-bags with cullet and can be used in glass production and construction industry. Proposed method comprises placing of big-bags on weighing device of filling station, inflating of big-bags with air forced by blower, pre-crushing of cullet, feeding it into big-bag with the help of vibratory feeder and control over weight of cullet portion to be filled in big-bag. Note here that after crushing cullet is fractionated to fine fraction sized to less than 10 mm, larger fraction with particle size of 10-40 mm and coarse fraction with particle size over 40 mm. Note here that, first, fine fraction is fed into big-bag in amount of 20-25%, of total weight of the portion. Then, larger fraction is fed therein in amount of 75-80% of said total weight. Coarse fraction of cullet is returned after fractionation for additional crushing.

EFFECT: better integrity of big-bag in transportation and storage.

1 dwg

The technical solution relates to a method of packing a big bag of bulk and various small-sized (gravel, broken glass and other) materials and can be used in glass and other industries.

It is known that the glass battle is a valuable secondary raw materials that can be used in the production of construction materials, such as foamed glass, and apply as one of the main components of the glass batch in the manufacture of glass, sheet glass and other glass products.

Often cullet for recycling is shipped to the appropriate enterprise bulk in road or rail transport.

However, in recent years, many enterprises in industrial glass processing and enterprises engaged in recycling of glass waste, increasingly ship to consumers cullet in big bags or Mcrah (soft containers one-time)that in some cases, for example when small volumes of supplies, much easier than the supply of cullet in bulk. But in subsequent operations transportation and unloading big bags with such highly abrasive material, as glass, there are several problems: big bags often torn (especially in the bottom part because of cuts sharp fragments of broken glass), and when rastarivanie like big b is regarded as one of the specialized units quickly tupjatsja or broken knives, cutting the bottom of the big-bag.

There is a method of packing a big bag of [1], including the suspension of the big-bag on the hooks installation package, the connection of the boot cap with the boot node setup, fan blowing air from the inner bag big bag filling big-bag being loaded and the control of the filling process with digital display weighing unit.

This method is widely used for packing big bags well-granular and crystalline non-caking materials (quartz sand, soda ash, dolomite powder and other components of the glass batch and dry mixes), but it cannot be used for packing high-abrasive materials with sharp edges, such as cullet or waste manufacture of ceramic tile and other

The closest technical solution to the claimed method is a method [2], which includes a similar operation suspension or install big-bag on the weighing platform, blowing bag of fan air, loading and removal of displaced air from the big bag through the suction system, and pre-crushing of broken glass.

The presence in the plant, implements this method of packing big bags the cullet cullet crusher allows you to grind the glass to fraction 10...40 mm (Optim the local particle size of cullet, want when it is loaded together with the charge in the melting furnace), which reduces the likelihood of cutting fabric big-bag during its storage and transportation, but does not completely exclude the contact of the loaded bag sharp fragments of broken glass larger (up to 100 mm) in size. In addition, compaction of large and medium fractions of broken glass at the bottom of the big-bag (especially the dense packing of the waste sheet of glass when loading in a big bag) filling and transportation greatly complicates the subsequent rastarivanie the consumer to appropriate facilities containing special knives that often break.

Task - improve the safety of the big-bag with broken glass during its transportation and storage, as well as improving the efficiency of subsequent unloading the big bag with the broken glass from the consumer.

This technical result is achieved in that in the method of packing big bags cullet, including the installation of a big-bag on the weighing device of the loading station, blowing big-bag ventilation air pre-crushing of cullet, download cullet in the big bag with the help of vibrating feeder and weight control are loaded into the big bag portions broken glass, after crushing produce fractionation of broken glass on the small fraction with razmara the particles less than 10 mm, consolidation fraction with a particle size of 10...40 mm and a major fraction with a particle size greater than 40 mm, and first served in a big bag small fraction of 20...25% of the total weight of the loaded portion, then the number 75...80% of the total weight of the loaded portion serves consolidation the fraction that fall asleep in a big bag on the layer of the fine fraction of broken glass, and a large fraction after fractionation return for recrushing.

The advantage of the proposed method of packing big bags cullet is that after crushing broken glass fractionized. This allows you to avoid the major acute-angled pieces of glass in stariway bag and reduces the likelihood of damaging the integrity of the big-bag for transportation and storage.

Another advantage is that the first big bag serves a small fraction of broken glass with a particle size less than 10 mm in 20...25% of the total weight of the loaded portion, and then the number 75...80% of coarse fraction with a particle size of 10...40 mm Loading coarse fraction in a layer of fine fractions of cullet completely eliminates possible cuts in the lower part of the big-bag and greatly simplifies the process of unloading the big bags at the consumer. In addition, significantly increases the service life of the knives in the unloading installations.

The process of packing big bags the cullet is implemented with the installation (Fig.1), includes:

intermediate hopper 1; swinging feeder 2; cullet crusher 3; hoisting-and-transport mechanism (Elevator) 4; classifier cullet on fractions 5; hopper 6 coarse fraction 7 of cullet; bunker 8 small fraction 9 of cullet; vibrating feeder 10 coarse fraction of cullet; vibrating feeder 11 small fraction of cullet; boot pipe 12; the fan 13 blown big-bag; suction system 14; a frame 15 for the suspension of the big-bag 16; the weight of the platform 17 and weighing terminal 18.

The device operates as follows. Uncrushed glass is loaded into the intermediate hopper 1 from which it using the tilt feeder 2 is fed into the crusher 3. When crushing broken glass formed faction of different sizes, which are determined by the parameters of the crusher. But as with any grinding at the output of the crusher appear as a separate major (uncrushed) fragments of glass, and 20-25% of small (less than 10 mm) cullet. Working faction when loading cullet in glass furnace together with the charge is usually considered broken glass with a particle size of from 10 to 40 mm On the size and configure the unit.

After crushing broken glass by means of a lifting-transport mechanism 4, which may be used belt bucket Elevator, goes to classify icator 5 cullet on fractions. The classifier 5 consists of a vibrating screen with two grids (meshes)with a cell size of 40×40 mm (upper bars) and 10×10 mm (lower grille). Fractionation (screening) cullet pieces of glass for more than 40 mm drop out of the top grate and discharged into the crusher 3 to dataplane. The fraction of broken glass from 10 to 40 mm separates the lower grille and is directed into the hopper 6 coarse fraction 7. More small glass with a particle size less than 10 mm falls through the bottom grille of the classifier 5 and falls into the hopper 8 small fraction 9 of cullet. Filling bins 6 and 8 cullet is controlled with the help of special sensors (not shown).

Before filling the outer bag big bag 16 is suspended on the hooks of the frame 15 mounted on the weighing platform 17. Inner bag big bag big bag consists of outer and inner bags) is attached to the boot pipe 12 made in the form of two coaxial set of pipes. Before downloading cullet big bag of pre-inflated by the air pumped by the fan 13. After blowing a big bag in his inner pipe poured the feed material, and in the gap between the two pipes associated with aspiration system 14 (role system performs a bag filter), it displaces air from the big-bag.

In% the SSE fill the big bag starts vibrating feeder 11 small fraction of cullet management system (not shown). Because small fraction fractionated cullet is 20-25% of the total mass of crushed cullet, and a big bag 16 is loaded 20-25% of the total weight of cullet, uploaded in big bag. The weight of cullet in big-bag measured strain gage weight sensors installed in the weighing unit 17, and is controlled by the operator via digital weighing indicator terminal 18. Because when trimming the big-bag on the installation of unloading the knife penetrates deep into the big-bag of 20...25 cm and the height of the big-bag often is 1 m, the thickness of the layer of the fine fraction, equal to about 20...25 cm (20...25% of the volume of big-bag)is optimal.

At the end of the boot in a big bag small fraction 9 cullet vibrating feeder 11 is turned off, and turns on the vibrating feeder 10, the feed in the big bag consolidation fraction 7. Next, the process of filling and weight control cullet in big-bag is similar.

Thus, uploaded in big bag cullet is located layers. The bottom layer is 20-25% of the total volume of cullet and contains small glass chips. Broken glass the same size from 10 to 40 mm is concentrated on top of this layer. This arrangement of cullet in big-bag prevents the tissue cuts big-bag in the bottom part of the transportation and warehousing, and greatly simplifies the process of RA is taiwania big-bag, excluding the rapid failure of the knives installations unloaders.

Sources of information

1. Efremenkov CENTURIES, Ruchkin VV Equipment for loading and unloading the big bag. // Glass Russia. - 2010 - No. 5 - p.16-20.

2. Efremenkov CENTURIES, Matveev A.A. Development and manufacture of equipment for recycling glass. // Glass Russia. - 2010 - No. 9 - p.30-37.

The method of packing big bags cullet, including the installation of a big-bag on the weighing device of the loading station, blowing big-bag ventilation air pre-crushing of cullet, download cullet in the big bag with the help of vibrating feeder and weight control are loaded into the big bag portions broken glass, characterized in that after crushing produce fractionation of broken glass on the small fraction with particle size less than 10 mm, consolidation fraction with a particle size of 10-40 mm and a major fraction with a particle size greater than 40 mm, and first served in a big bag small fraction of cullet in the amount of 20-25% the total weight of the loaded portion, then the number of 75-80% of the total weight of the loaded portion serves consolidation the fraction that fall asleep in a big bag on a layer of fine fraction and coarse fraction of cullet return after fractionation for recrushing.