RU142901U1 - DEVICE FOR STORING AND MIXING BULK MATERIALS - Google Patents

Abstract

DEVICE FOR STORAGE AND MIXING OF BULK MATERIALS (UHSSM) refers to the construction industry and is intended primarily for the arrangement of oil and gas production facilities. UXSSM contains a base frame on a semi-trailer to a vehicle, a loading unit, airtight bins with aerators of bulk material in the bottom of each of them, pipelines, respectively, for moving bulk material, for distributing compressed air, for creating a vacuum and for unloading bulk material to a consumer , including in the dosage regimen. It differs from well-known analogues, including the prototype, in higher consumer properties due to greater adaptability to operating conditions due to significant structural improvements of a number of units, elements, and the UHSSM layout as a whole. 6 C.p.F., 5 ill.

Description

The utility model relates to devices for storing bulk materials in places of direct use and is intended primarily for the construction industry, including the arrangement of oil and gas production facilities.

The prior art in this area is characterized by the presence of a number of [SU 132984 cells. 81e, 62 November 21, 1959; SU 188895 A 07.12.1966; SU 506557 11/12/1973; SU 716945 A 02.25.1980; SU 817182 A 03/30/1981; SU 1237586 A2 05/11/1983; RU 2281239 C2 04/08/2004; RU 2415069 C2 04/01/2009; GB 995051 A 06/10/1965; site of the Stroybeton plant http://www.ibeton.ru; Vorobiev A.A. and other pneumatic conveying installations. Directory. L., Engineering, 1969, p.105, 161, 176, fig. 144 and 154; http://www.stroymehanika.ru/siloseuro_m.phpl technical solutions, however, most of them are designed to provide highly specialized needs, such as, for example, only delivery, only short-term storage, only metered supply for the preparation of suspensions, suspensions, pulps, pastes etc. water based. At the same time, for the preparation of multicomponent compositions based on bulk materials, a rather complicated multistage technology and an appropriate set of technical means are required.

Technologies for the preparation of homogeneous (homogeneous), i.e. high-quality suspensions (gels) of bulk materials in liquids for specific purposes, as a rule, only provide for the accurate ratio of components, which is controlled during preparation by measuring the density (specific gravity) and corrected by changing the flow rate (supply) of a component to the mixer unit . The process is significantly complicated if the bulk material for the preparation of a mixture of it with a liquid carrier (the main phase of the mixture) contains two (or more) substances; so, for example, other bulk materials are added to the cement to obtain cement “mortars” with special characteristics (chemical inertness to the environment, water and gas impermeability and / or lack of porosity, setting start time after preparation, the rate of curing and its final value, heat resistance, etc. etc.). Due to the instability of such a “solution” and the need for its immediate use (especially when pumping it into the well for its fastening and / or carrying out repair and insulation works), the process of preparing the solid phase (for mixing it with the liquid) is carried out in advance, in a dry loose state of all components . It should be noted that the optimal mixing of bulk components can only be performed in sealed containers, hoppers by repeated intense mechanical stress. Such exposure and mixing of substances, as practice has shown, is ensured by the repeated movement of the bulk mixture from the hopper to the hopper under the influence of rarefaction and excessive air pressure from one side or another using the effect of its "fluidization".

It should be noted (note by potential consumers) that there are a lot of bulk materials in the life of mankind: salt, sugar, starch, flour, cereals (food); compound feeds for animals, fertilizers, seeds, chemicals for processing (agricultural substances); chalk, lime, alabaster (gypsum), cement, sand and other fillers, dyes and special additives (building materials), and this is not a complete list. Naturally, most bulk solids / materials require specific storage conditions, which include protection against damage by rotting, fermentation, thermal effects; protection against destruction, damage and pollution by animals and insects, etc. It follows that the more expensive the product, the more costly and responsible its storage, and low-value material such as building sand are stored and stored in heaps, protecting, at best, from being carried away by the winds.

Known stationary devices (warehouses) for storing bulk materials and dispensing them to consumers, containing a system of receiving pipelines and silos of long-term storage of material, equipped with filling gauges, a system of pipelines for translating this material from silo to silo and for dispensing to consumers, a duct system with a compressed air source for fluidization and intensification of the process of moving bulk material.

However, the known devices are not sufficiently adaptive to the needs of the construction industry, as they are highly specific in purpose and scope and do not allow, for example, quickly and efficiently, before using bulk materials in a relatively small (ten tons) quantity, to mix them in the required proportions to a homogeneous homogeneous state .

The closest claimed technical solution, that is, a prototype, is a device [SU 1237586 A2 05/05/1983], containing silo banks (sealed bins), pneumatic conveying devices for bulk material, a loading device, an ejector between the loading device and the storage tank, a filter-ventilation unit, shut-off -switching fittings.

However, the prototype solution provides only the reception, storage and delivery of bulk material to the consumer, without having the function of effectively mixing the bulk material with various additives and reagents and does not allow preparing mixtures different in component ratio to meet the needs of construction and fastening of wellbores, that is, not adaptively and In addition, all the equipment in its composition is stationary and considerable time is required for relocation to another place of work.

The technical task of the claimed object, as a utility model, is to increase its consumer properties.

This problem is solved in that in the known device containing the base frame, sealed bunkers placed on it with aerators, liquefiers of bulk material in the bottom of each of them, a pneumatic unit to create excess pressure or vacuum, a loading unit, nozzles on the bins and pipelines for communications of the latter, by means of nozzles, with a loading unit, a pneumatic unit and between each other, locking and switching valves for manipulating bulk material and moving it by means of overpressure or vacuum hopper into the hopper, as well as a unit for cleaning, purging, separating and discharging exhaust air, the base frame is mobile in the form of a semi-trailer to the vehicle, equipped with spars for positioning the device at the place of use, the hopper closest to the loading unit is mounted on the base frame by means of supports with weight sensors, e.g. strain gauge type.

Additional differences of the device, namely, that the spars have a wedge-shaped configuration with the apex of the corner of the wedge facing the towing means; it is equipped with an electric cable and a high pressure sleeve for connecting external sources of electric and pneumatic energy; the bottom of each hopper, that is, their bottom, is equipped with aerating normally closed elastomer nozzles self-opening from excessive pressure from the outside; the inlet end of the pneumatic line, from the pneumatic unit, is equipped with a quick-change cassette dehumidifier of bubbler type air with a glycol absorber, for example, diethylene glycol, triethylene glycol; the pneumatic line is wrapped with a flat resistive heating electric cable; an electrostatic precipitator of the solid phase of the dusty air mixture is placed in the cavity of each hopper - they significantly increase the consumer properties of the claimed object as a utility model.

The claimed technical solution meets the "criteria" of the utility model, since publicly available sources of information have not found technical solutions similar to it (in terms of the essential features and the same functionality), while the industrial applicability and implementation of the claimed technical solution is undeniable and obvious.

The utility model is illustrated by graphic materials, where FIG. 1 shows a general view of a device (left view) for storing bulk materials in an operational position, FIG. 2 shows a flow chart, FIG. 3 shows a fragment of a hopper with an aerator-fluidizer in its bottom, FIG. 4 shows a fragment of a pipeline for supplying excess air pressure with a winding flat resistive heating electric cable, figure 5 shows the upper part of the hopper with an electrostatic precipitator in the cavity. Black thin arrows in the figures show the movement of bulk material, black thickened arrows show the movement of dusty masses, white arrows show the movement of air.

A device for storing and mixing bulk materials contains (see figures 1-5) located on the base-frame 1: sealed bins 2 with aerators-liquefiers 3 in the bottom of each of them, pneumatic unit 4, loading unit 5, nozzles 6, pipelines 7 (7.1 ... 7.3), unit 8 for cleaning, purging, separating the dust-air mixture and discharging exhaust air. The base frame is equipped with spars 9 for positioning the device at the place of operation; the hopper 2 closest to the loading unit 5 is mounted on the base frame 1 by means of supports 10 with weight sensors 11. The spars 9 have a wedge-shaped configuration with the apex of the angle α facing the towing means, that is, from the side of the loading unit 5. In the transport position, the base frame 1 is parallel to the road and has a vertical distance from the last H1 (see Fig. 1), and in the operating position of the device, the base frame 1 is lowered by the towing end to the platform at the same angle α and the loading unit 5 is substantially lower at a height of H2, which is very convenient for maintenance. Aerator-liquefier 3 (figure 4) is a normally closed nozzle made of elastomer. A set of nozzles, located in the bottom of the hopper 2, is the technical equivalent of the well-known, the so-called "air bottom". In addition, the device contains: at the inlet of the pipeline 7.1 supplying excess air pressure quick-change cassette dryer 12 air bubble type with a glycol absorber; a flat resistive heating electric cable 13 wound on the same pipe 7.1. In the cavity 14 of each hopper 2, a precipitator 15 of the solid phase of the electrostatic dust-air mixture is placed. The node 8 for cleaning, purging, separating the dust-air mixture and discharging the exhaust air consists of a sealed container 16, structurally similar to the hopper 2, filter separator 17, ventilation pipelines 7.2, respectively connected with the pneumatic unit 4 and hoppers 2. The loading unit 5 contains: a funnel 18 with a filter grid and elements tearing up the packing of bulk material (bag), an ejector 19, a pipe 7.1 for supplying excess air pressure and a pipe 7.3 for moving bulk material into the hopper 2; 20 indicates the location of the power cable and high pressure hoses for connecting external energy sources.

To improve consumer properties, the device is also equipped with quick-detachable plugs, stairs, platforms and fences, ensuring the safe presence of maintenance personnel when working at height, or preventing access to the moving elements of the actuators, the device is also equipped with boxes for accommodating the sleeves needed to connect the piping 7 with appropriate receiving lines of consumers (suppliers) of bulk material, boxes for storage and transportation of various trumenta, rags and other ancillary items, instrumentation for monitoring the filling level hoppers 2 and / or container 16 as well as local illumination elements (the figures are depicted, but separate positions not designated). To increase the mobility of the device, the base frame 1 can be replaced by a chassis of an all-terrain vehicle.

The device operates as follows. After the device is installed on a horizontal platform, the bins of the device 2 are loaded with bulk material through the loading unit 5. The loading can be carried out in one of the well-known ways: by elementary emptying from the bags, ejection, pneumatic unloading from the cement truck of the supplier or vacuum loading from the own pneumatic unit 4. Mixing several components the mixture provides for the layer-by-layer loading of a component in the hopper 2 with constant monitoring of the incoming quantity according to the sensor And followed by repeated movement of the entire contents of the hopper to the hopper to obtain a homogeneous mixture. Unloading is carried out pneumatically, by creating excess pressure in the unloading hopper 2 and imparting fluidity to the contents by liquefying through an aerator-liquefier 3 or by vacuum loading a cement truck of a consumer. In the case of long-term storage of bulk material in the cavity of the hopper 2, the material is subjected to periodic aeration using dry heated air from the pneumatic unit 4. After emptying the hoppers 2, all pipelines, shut-off valves on them, tank 16 and filter separator 17 are blown and cleaned. The device is ready for further use.

Thus, a device for storing and mixing bulk materials, as a utility model, ensures guaranteed achievement of the required technical result and is subject to protection by the RF title document (patent).

Claims (7)

1. A device for storing and mixing bulk materials, containing a base frame, sealed bins with aerators, liquefiers of bulk material placed on it in the bottom of each of them, a pneumatic unit to create excess pressure or vacuum, a loading unit, nozzles on the bins and pipelines for communications of the latter, by means of nozzles, with a loading unit, a pneumatic unit and between each other, shut-off valves for manipulating bulk material and moving it by means of overpressure or times ezheniya from the hopper to the hopper, as well as the unit for cleaning, blowing, separating the dust-air mixture and exhaust air discharge, characterized in that the base frame is mobile in the form of a semi-trailer to the vehicle, equipped with spars for positioning the device at the place of use, closest to the loading unit the hopper is mounted on the base frame through supports with weight sensors, for example, tensometric type. 2. A device for storing and mixing bulk materials according to claim 1, characterized in that the spars have a wedge-shaped configuration with the apex of the wedge angle α facing the towing means. 3. A device for storing and mixing bulk materials according to claim 1, characterized in that the device is equipped with an electric cable and a high pressure sleeve for connecting external sources of electric and pneumatic energy. 4. A device for storing and mixing bulk materials according to claim 1, characterized in that the bottom of each hopper, that is, its bottom, is equipped with aerating normally closed elastomer nozzles self-opening from outside pressure. 5. A device for storing and mixing bulk materials according to claim 1, characterized in that the initial section of the pneumatic line from the pneumatic unit to the hoppers is equipped with a quick-change air-bubble type cassette dryer with an absorber-glycol, for example, diethylene glycol, triethylene glycol. 6. A device for storing and mixing bulk materials according to claim 1, characterized in that the pneumatic line is wrapped with a flat resistive heating electric cable. 7. A device for storing and mixing bulk materials according to claim 1, characterized in that an electrostatic precipitator of the solid phase of the dust-air mixture is placed in the cavity of each hopper.