SU1766320A1 - Silo for storing granulated sugar or sugar beet pulp - Google Patents

Abstract

Use: for storing agricultural products, and specifically for storing and drying granulated sugar or sugar beet pulp. Essence: a silo includes a housing, a bottom with a discharger, an air conditioning unit that contains a compressor, a distribution system with nozzles, a loading device product. The air conditioning system is supplied with a desiccant, purifier and inert gas preheater to supply the saturation gas housing into the cavity. The device for loading the product contains a compressor, a bunker feeder and additional pipelines for supplying the product, mounted on the roof from the inside of the case, on the end sections of which there are outlets in the form of conical nozzles. 1 il.

Description

The invention relates to storage silos for sugar or sugar beet pulp and can be used for drying sugar sugar or sugar beet pulp during storage.

When bulk storage in sugar silos or sugar beet pulp is maintained, certain parameters, such as temperature 22 ° C, sugar moisture 0.04% and relative air humidity in the silo 55 ... 60%, are maintained. These parameters are provided by the air conditioning system. Preservation of granulated sugar is especially important when unloading it from a large-capacity silo, which eliminates the formation of arches or lumps.

The silo of loose products (EP No. 0254953, cl. B 65 G 65 / 30,1986), including the body, bottom, roof, air conditioning system, is known. Bulk product poured into a well-known silo conveyor through the upper part of the body and sprinkle gravity method. The bulk solids are discharged through a plurality of bottom windows with pyramidal guides. In this device, the air conditioning system supports the technological parameters of bulk bulk storage.

A disadvantage of the known silage is that, when stored in it, granulated sugar does not provide a sufficient degree of fire and explosion safety measures. The silage is filled under the air atmosphere, and the sugar dust is a highly flammable and explosive product in the air.

The closest to the invention to the technical essence is a silo for storing bulk materials, including a housing, a bottom, a roof, an air conditioning system made from a source of supply of the working gas and a system of distribution pipelines with nozzles, XI O C

WITH

yoo o

The unit for loading and unloading of granulated sugar. The disadvantage of this device is that in order to ensure fire and explosion safety, special measures are required, which are required when storing high-risk products in 5 silos.

The aim of the invention is to ensure the safety of a fire through the presence of a saturation body 10 in the cavity of the housing.

TO

gas.-; ",

; The drawing shows the silo diagram.

The silo consists of casing 1, bottom 2, roof 3, air conditioning system 4, made from a source 5 for supplying working gas - saturation gas, such as a compressor, cleaner 6, dryer 7, preheater 8, gas saturation, distribution pipelines 9 s nozzles 10, collector 11, connecting air conditioning system 4 and loading device 12, made in the form of a compressor 13 for supplying saturation gas and additional pipelines of an air lift 14, containing a bunker-feeder 15 material pipelines 16, release and 17 which are evenly distributed with respect to the axis of the housing 1 and fixed inside the housing on the roof 3, the unloading device 18 and the uprights 19 of the base 30.

The equipment of the air conditioning system 4 is located inside the premises in the space between the outer side of the housing 1 and the racks 19, maintains and creates the required environmental parameters in the oversampling space by blowing saturation gas through the mass of sugar from the bottom to the roof to level the temperature and moisture content of sugars throughout its mass.

Purifier 6, dehumidifier 7, heater 8 of carbonated gas can be typical, used in a sugar factory for the same purposes .45

To create an inert atmosphere in the silo casing, for example, gas is used during the juice production period at a sugar factory, the silo of which is located next to the sugar factory and is loaded as sugar is produced. During this period, a lime calcining plant is operating, where saturation gas is extracted. Spent saturation gas is emitted into the atmosphere. With the production of 1 kg of CaO, about 0.4 m C02 is obtained. Thus, a plant with a productivity of 6000 tons of beets per day consumes 120 ... 180 tons of CaO. At the same time, 48000 to 72000 m3 of CO2 are produced per day. Predola - s,

that the content of C02 s saturation gas is in the range of 28 ... 35%, we find the volume of daily production of saturation gas: from 150,000 to 230,000 m3. This is 5 ... 8 times the internal volume of empty silage, for example, storage of 25,000 tons of granulated sugar. The composition of fresh saturation gas is COA 28.,. 35%, ... 5%, CO 1.1%, N2 the rest. The composition of the exhaust gas from the gas (when using 70% CQ2J calculated: CO2 11.5 ... 14%, 02 4.5 ... 6.5%, CO 1.5%, N2 the rest.

It is known that in an atmosphere with an oxygen content reduced to 11–13%, sugar dust does not ignite.

For loading granulated sugar into a silo, for example, round pipe cross-sections are used in an amount of not less than four, evenly distributed with respect to the axis of the hull. Issues 17 of the pipelines 16 are made in the form of sockets through which the sugar or sugar beet pulp is discharged into the housing 1.

To discharge sugar or sugar beet pulp in the bottom 2 there are several leakages, from which granulated sugar enters the sub-skid space of the unloading devices 18. The collector 11 consists of pipelines with stop valves. The bunker 15 is an accessory of either the load weighing device or the loading device 12 itself.

Silo works as follows.

Main works: loading of granulated sugar into silo for storage; shipment of granulated sugar from silo to transport devices. transfer of sehara sand from the silo to the packaging compartment; recycle qi of granulated sugar in a silo.

The loading of granulated sugar into the silo is carried out as follows.

The product enters the loading conveyor through the loading conveyor 12. In this case, the saturation gas from the sugar plant is fed by compressor 5 to purifier 6, desiccant and preheater 8. where it is heated or cooled depending on the required gas temperature, and through the collector 11 to the compressor 13, from which it is injected into the loading device 12. The saturation gas picks up the product discharged, for example, by a screw from the loading weighing device, into the feed dispenser 15, directs it in the pneumatic lift 14, lift along the pipelines 16 and discharging through the outlets 17 into the inner cavity of the housing 1. Together with the product, the saturation gas fills the sugary space of the silo.

At the end of the silo loading, a small gap remains between the trusses of the roof 3 and the bulk volume of granulated sugar.

The necessary parameters during the storage of granulated sugar are supported by the conditioning system 4, which injects saturation gas through the manifold 11 into the distribution piping system 9 and the nozzles 10 through a layer of granulated sugar into the internal cavity of housing 1. From the bottom 2, the saturation gas rises through granulated sugar and from the sugared space through the check valves is released into the atmosphere.

In the internal cavity of the housing 1, the incoming saturation gas displaces the air and creates an inert environment with an oxygen content of less than 11 ... 13%, which1 contributes to the protection against the ignition of sugar dust and prevents stored sand from fire and explosions.

The delivery of granulated sugar from the silo is carried out through the bunkers of the bottom leaks 2 as well as the discharge conveyors 18 to the transfer and weighing unit.

Then the granulated sugar enters the conveyor, loading it into a vehicle or feeding it into the packing compartment.

In the recirculated sugar mode, the granulated sugar is simultaneously loaded into the silo and unloaded from the silo in the same manner as described above.

In the case of stopping the sugar factory and the absence of the produced saturation gas during storage of granulated sugar in the silo, the source 5 of the working gas supply can force air into the collector 11.

Air can be supplied to housing 1 for any other reason, when it is necessary to carry out prophylaxis for preparing silage for operation. When storing granulated sugar and silage, the likelihood of ignition of the sugar dust is minimal, since it occurs most of all when loading the fishing line into the silo.

ten

about rmu l and inventions

A silo for storing granulated sugar or sugar beet pulp, including a housing with a roof, a bottom with an unloading device, a conditioning unit for a housing cavity, containing a compressor and a distribution system with nozzles, a device for loading the product, including a supply pipeline

product and outlets evenly spaced relative to the axis of the body, characterized in that, in order to ensure fire and explosion safety by supplying a saturation gas to the body cavity, the air conditioning system is equipped with a desiccant, a cleaner and an inert gas heater connected in series with the compressor, and the device

for loading the product, a compressor connected by a pneumatic line is connected to the conditioning system after the heater; the feeder hopper and additional pipelines for supplying the product; all pipelines are fixed on the roof from the inside of the case and placed along its formers, and the outlets are installed on the end sections of the pipelines conical nozzles.

0

Pv)

Claims (1)

Claim A silo for storing granulated sugar or sugar beet pulp, including a housing with a roof, a bottom with an unloading device, an apparatus for conditioning the cavity of the housing, comprising a compressor and a distribution pipe system with nozzles, a product loading device including a product supply pipe and discharges, evenly spaced relative to the axis of the housing, which consists in the fact that, in order to ensure fire and explosion safety by supplying saturation gas to the housing cavity, the air conditioning system The unit is connected in series with the compressor by a desiccant, a purifier and an inert gas heater, while the device for loading the product contains a compressor connected to the air conditioning system after the heater, a hopper-feeder and additional pipelines for supplying the product, all pipelines mounted on the roof from the inside of the housing and placed along its generators, and the outlets are installed on the end sections of the pipelines and are made in the form of conical nozzles.