RU2598391C1 - Process line for making water-resistant construction slabs - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction. Process line for making water-resistant construction slabs, mostly boards based on gypsum, fine-grained expanded clay and structure forming gypsum modifier, includes arranged in process sequence, and interconnected with vehicles batcher, mixer of continuous or periodic action, assembly for preparation and portion supply of raw gypsum material, water, gypsum modifier, fine-grained expanded clay, and fibres. Besides, process line contains unit for generating carpet of product, for example in form of plate or building fabric, device for formation and compaction of formed products, drying and cutting unit for finished product. Device for formation and compaction of formed article is equipped therein with height-adjustable evener roller for mass. Before carpet generating assembly, bunch for supplying lower layer of glass fibre net, and open vessel for uniform impregnation of carpet with homogeneous composition are arranged. After carpet generating assembly, bunch for supplying upper layer of glass fibre net and bunch for supplying glass fibre canvas are installed in series, and also evener roll for uniform pressing them into carpet material mass. At that, along conveyor run, before drying unit, lifting cassette collector is installed.

EFFECT: technical result is faster construction time, increased service life, and higher efficiency of operation.

1 cl, 3 dwg

Description

The technical solution relates to construction, relates to the construction materials industry and can be in demand in industrial and civil engineering, in various industries.

The technical task of the invention is to obtain a durable, moisture-resistant gypsum-modified plate used for fixed facade and internal formwork, reducing the cost of construction, minimizing the cost of building materials, increasing the service life and operating efficiency.

A known production line for producing foam concrete products, containing binder-mounted feeder-dispensers installed in the frame, connected via material pipelines to a mixer for preparing a mixture of cementitious materials with foam, communicated through a material pipeline with a foam generator having liquid foaming agent supply pipelines, a filler-dispenser for a filler, a mixer , a control unit electrically connected to the feeders dispensers and a foam generator, while the foam generator has a housing with ribs on the inside the surface of the surface and a hollow shaft perforated in the middle part with an aerator and a homogenizer located in the housing (RU 2033921, class B28C 5/38, 04/30/1995).

A known production line for preparing a concrete mixture, including hoppers for dry components, a constant-level tank, a foam generator with a working body, nodes for supplying a dry mixture, water or a solution of additives and a foaming agent, a foam mixer with a mixing body, the foam generator is made in the form of a snail with a built-in a turbine mounted on a working body and connected to a constant-level tank and a foam supply unit, and the concrete mixer is made with a sequential distribution along its length feeding the dry mixture, water and additive solution, and in the zone of discharge of the solution stirring body is formed as a screw and a foam feeding zone in the form of blades mounted on a screw line (RU 2136492, Cl. V28S 5/38, 10.09.1992).

The disadvantage of such installations is their significant energy consumption with a relatively low productivity and their high material consumption.

A known installation for producing foam concrete containing bins for dry components, tanks for water and a foaming agent, dispensers, foam mixer, mortar lines, foam generator, mortar hopper, a device for mixing dry components and a mortar mixer (SU 1761572, class B28C 5/38, 1992).

However, due to the dosing of the dry components and water directly into the concrete mixer, bypassing the preliminary mixing of the dry components, and the short mixing time, it is impossible to obtain a homogeneous mortar mixture, which at the same time, due to the low degree of hydration of the binder, does not have the necessary ductility for mixing with the foam and does not provide high-quality molding a cellular mixture, and when it is molded, the cellular structure is destroyed and the quality of the foam concrete products decreases.

A known production line for the production of dry building mixtures, containing installed in the technological sequence capacity for storing binder, capacity for storing filler, a common storage hopper, hopper additives and mixer components of binder, filler and additives, the line is installed on a mobile base and equipped with a mechanical activation agent additives communicated by the product pipeline with the additive hopper, and the storage tanks, respectively, of the binder and filler are made sliding at a height and with the help of individual product pipelines communicated with a common storage hopper posted on load cells on a weight measuring system equipped with a control panel for dosed weight delivery of components, the common storage hopper and additive hopper using individual product pipelines communicated with a mixer of binder, filler and additives components, at this line is made with the hopper of the finished mixture, in communication with the mixer, and is equipped with a unit for packaging and packaging (RU No. 110680, cl. B28C 5/00, 11/27/2011).

The closest in technical essence and the achieved effect to the claimed technical solution is a foam concrete production line containing hoppers with feeders for dispensers for dry components, a container with a dispenser for mixing water of a sand-cement mixture, a foam mixer, a container for a solution of a foaming agent and a foam generator communicated by product pipelines with a foam concrete mixer, and a container for a foaming agent solution (RU 2080993, class B28C 5/38, 06/10/1997).

However, the known production line is excessively material-intensive and energy-intensive, and also has a complex correlation of the uniformity of the foam concrete structure when using sands with a varying modulus of fineness.

The technical task of this proposal is to obtain a durable, moisture-resistant slab used for fixed facade and internal formwork, reducing the cost of construction, minimizing the cost of building materials, increasing the service life and operating efficiency.

The technical problem is ensured by the fact that the production line for the manufacture of water-resistant building plates, mainly gypsum-modified mineral plates based on gypsum, fine-grained expanded clay and forming the structure of gypsum-modifying binder, contains a dispenser, a mixer of continuous or periodic action, located in the technological sequence and communicated with each other by vehicles, unit for preparing and portioning the supply of gypsum raw materials, water, a gypsum modifier, fine grains the expanded clay and fiber, the node forming the product carpet, for example in the form of a plate or building cloth, a device for molding and sealing the formed product, the drying and cutting unit of the finished product, while the device for forming and sealing the formed product is equipped with a height-adjustable roll mass leveler, moreover, in front of the carpet forming unit, a supply bay for the lower layer of the fiberglass and an open container for uniform impregnation with a homogeneous composition are installed, and after the carpet forming unit sequentially feeding set bight topsheet fiberglass and glass fiber supply bay and also to uniformly roll razravnivateli indentation their weight in the mat material, wherein during the movement of the conveyor before the drying unit installed an elevator cassette collection.

The invention is illustrated by drawings, where in FIG. 1 shows a production line for the manufacture of water-resistant building boards; in FIG. 2 - photofragment of the line; in FIG. 3 is the same.

The production line for the manufacture of water-resistant building boards, mainly gypsum-modified mineral plates based on gypsum, fine-grained expanded clay and forming the structure of gypsum-modifying binder, contains 1 dispenser 2, a continuous or batch mixer 3, a continuous and batch mixer 3, a preparation and batch unit supply of gypsum raw materials 4, water 5, gypsum modifier 6, fine-grained expanded clay 7 and fiber 8 forming the product carpet 9, for example, in the form of a slab or building cloth, a device for molding and sealing the formed product 10, a drying unit 11 and a cutting unit for the finished product 12, while the device for forming and sealing the formed product 10 is equipped with a height-adjustable roll mass leveler 13 moreover, in front of the carpet forming unit 9, a bay 14 for supplying the lower layer of the fiberglass and an open container 15 for uniformly impregnating it with a homogeneous composition is installed, and after the carpet forming unit 9 in series about installed a bay 16 for supplying the upper layer of fiberglass and a bay 17 for supplying fiberglass, as well as roller levelers 18 for uniformly pressing the fiberglass and fiberglass into the mass of carpet material, while an elevator cassette 20 is installed in front of the drying unit 11 in the direction of the conveyor 19.

The process begins with the preparation of a mixture according to the recipe. The mixture is fed into a continuous or batch mixer 3, water is also poured there, as well as other components - gypsum raw materials, gypsum modifier, fine-grained expanded clay and fiber, preferably polypropylene fiber, where the molding mixture is prepared. From the mixer, the composition is fed to the unit for forming the product carpet 9, for example, the product carpet in the form of a slab or a building canvas, then to the device for molding and compacting the formed product, where the mixture is laid on a pre-lubricated formwork. In stand-alone mode, the fiberglass mesh is laid out from a bay located above the line table, after which the mixture is laid and leveled, a second layer of fiberglass mesh is laid on top, as well as a layer of non-woven fabric, roll levelers 18 uniformly press the fiberglass mesh and fiberglass into the mass of carpet material, while moving along the movement of the conveyor 19 in front of the drying unit 11 has an elevator cassette collection 20, which directs the product to the drying unit 11 and the cutting unit of the finished product. An elevator cassette with a 20-sheet cassette is installed at the end of the line; after filling, the cassette is moved to the set strength zone and covered with a thick cloth (at a temperature of at least 15 ° C, optimally 25-35 ° C, setting time 40-70 min, full cure 4-6 h) After curing, the sheets are cut, calibrated, packaged and stored. Sheets are produced up to 1.3 m wide, from 4 to 60 mm thick, from 2.0 to 3.0 m long. Reinforcement is made with a fiberglass mesh with a 4 × 4 or 5 × 5 mesh. The transition from one type of product to another is carried out within 30 minutes by adjusting the clearances of the leveling rolls and changing the roll materials.

Claims (1)

A production line for the manufacture of water-resistant building boards, mainly gypsum based boards, fine-grained expanded clay and forming a gypsum modifier structure, characterized in that it contains a dispenser, a continuous or batch mixer, a preparation unit and batch feed of gypsum raw materials, water, gypsum modifier, fine-grained expanded clay and fiber, knot formation of the product carpet , for example, in the form of a slab or building cloth, a device for molding and sealing the formed product, a drying and cutting unit for the finished product, the device for forming and sealing the formed product is equipped with a height-adjustable roll mass leveler, and a lower feed bay is installed in front of the carpet forming unit fiberglass layer and an open container for uniform impregnation with a homogeneous composition, and after the carpet forming unit, the supply bay of the upper layer of the stack is sequentially installed Osetki supply bay and glass fiber, and also to uniformly roll razravnivateli indentation their weight in the mat material, wherein during the movement of the conveyor before the drying unit installed an elevator cassette collection.

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