RU8651U1 - FOAM CONCRETE BLOCKS PRODUCTION LINE, FORM FOR THEM AND FOAM GENERATOR - Google Patents

Abstract

1. A line for the production of foam concrete blocks, including a mortar mixer, a foam generator, a foam concrete mixer, a device for filling molds with a cellular concrete mixture, molds, a device for forming strength products, a product forming unit, dispensers and a control panel, characterized in that the foam generator is connected with a compressor for supplying compressed air and with a pump installed after the capacity of the foaming solution, the concrete mixer is connected with the mortar oil through a cement-sand mortar dispenser, with a foam generator - through a time sensor and with a container for a foaming solution - through a fluid dispenser, and the device for filling molds with a cellular concrete mixture is made in the form of a screw pump. 2. The line according to claim 1, characterized in that the device for a set of forming strength is made in the form of a chamber for heat-moisture treatment or in the form of an insulated chamber that prevents evaporation of moisture from the surface of the cellular concrete mixture. A foam generator comprising a housing with a packet of grids, a diffuser, an inlet and outlet nozzles, a pre-mixing chamber, characterized in that the diffuser cavity is filled with fibrous material, and the pre-mixing chamber further comprises a nozzle for supplying compressed air mounted at right angles to the nozzle for supplying a foaming solution and the latter is equipped with a nozzle. 4. A mold containing a pallet, sides and dividing elements for creating forming cells, characterized in that one side is fixedly mounted on the pallet, and the other is installed with

Description

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Line for the production of ash-concrete blocks, f (fma for Pikh and peioherator

The line is designed for the production of foam concrete blocks and can be used in the construction and construction materials industries.

A well-known line for the production of foam concrete products (Glukhovsky V D. et al. Fundamentals of the technology of finishing, heat and waterproofing materials. Kiev. Vshtsa school. 1986, p. 186 -189).

The line contains a cement-sandy mortar preparation unit, a foam generator with a container for a foaming solution, a concrete mixer, a foam concrete production day form, an autoclave and a forming unit. All basic elements are connected through dispensers. There is a remote control uhvumnuliya.

A disadvantage of the known line is its bulkiness, the presence of a large number of complex nodes, the need for preliminary grinding of sand.

Closest to the proposed foam generator is a foam generator (Author svideggelsgvo No. 1639669, class A 62 C 5/00) containing a housing with inlet and outlet nozzles, between which a packet of grids, nozzles and a turbofan are installed, turbofan blades are filled with overhangs in the fan part. The disadvantage of this fan is the complexity of the design, while getting a foam of insufficient uniformity and low stability.

6 IPC B 01 F 3/04

prefabricated reinforced concrete industrial engineer. Kiev. Wake-up call. 1983 from. 147). The longitudinal sides and dividing walls are welded to the pallet.

The disadvantage of this form is its indissolubility, when releasing the product from the forms, it is necessary to lift the whole form, which requires the mandatory use of lifting devices.

The objective of the proposed technical solution is to create a compact, small line, convenient and working on a simplified technology without compromising the quality of the resulting foam concrete products.

The solution to this problem is achieved by the fact that in the foam concrete production line, including a mortar mixer, a foam generator, a foam concrete mixer, a milking device for filling molds with a cellular concrete mixture, molds, a device for forming strength products, a product forming unit, dispensers and a control panel, the foam generator is connected to a compressor for supplying compressed air and a pump installed after the container for the foaming solution. The concrete mixer is connected to the spray mixer through a cement-sand mortar dispenser, with a foam generator and a time sensor and with a container for foaming mortar through a liquid dispenser, and a device for filling molds with a cellular concrete mixture is filled in a screw pump. The device for gaining strength is implemented in the form of a chamber for heat-moisture treatment or in the form of an insulated chamber to create conditions in it that exclude evaporation of moisture and cooling.

In a foam generator containing a housing with a packet of grids, a diffuser, an inlet and outlet nozzles, a premixing chamber, the cavity of the diffuser is filled with fibrous material. The premixing chamber further comprises a nozzle for

compressed air supply, installed at right angles to the nozzle for supplying a foaming solution, the latter being equipped with a nozzle.

In the form containing the pallet, sides and dividing elements to create the shape of the cells, one side is fixed motionless on the pallet, and the second with the possibility of rotation relative to the pallet. Separating elements are made removable from a flexible league with transverse partitions attached to it.

In the proposed design of the foam generator, the foaming solution and air are supplied to the pre-mixing chamber under pressure and perpendicular to each other. In this case, intense foaming and the formation of a foam-air mixture occur, and in the diffuser, due to the presence of fibrous material, primary crushing of the foam and its stabilization take place.

As a result of such work of the foam generator, finely dispersed, uniform and stable foam is obtained. When using high-quality foam, there is no need to grind the sand used for cement-sand mortar, which greatly simplifies the technological scheme. There is no need for devices for grinding and drying sand, expensive autoclaves are replaced with devices for heat and moisture processing or simply with cameras, for example, from a film, the day the moisture is eliminated from the cellular concrete mixture and the temperature drops.

Original execution of forms makes it easy to form. Moreover, the formwork is carried out in stages, for each dividing element, which is much simpler and easier.

The figure 1 shows a diagram of a line for the production of foam concrete blocks, figure 2 - foam generator, figure 3 - Y shape for foam concrete blocks and figure 4 shows a diagram of the release of forms from blocks. The line consists of a mortar mixer 1, which is connected to a foam concrete mixture through a cement-sand mortar dispenser 2. A foam concrete mixer 3 is connected through a dispenser 4 to an evosity 5 for a foaming solution and through a time sensor 6 to a foam generator 7. The foam generator 7 is in turn connected to a compressor 8 for compressed air supply and through a pump 9 with a container for a foaming solution 5. After the foam mixer 3, a wing pump 10 is installed to fill the molds and the cellular concrete mixture. The sequence of operation of the concrete mixer 3, compressor 8, pump 9 and screw pump 10 is provided by the control panel 12. The device 13 for a set of products of forming strength is located after the casting platform of 11 ng is connected to the unit for forming finished products 14. The foam generator 7 consists of a housing 15 with a package nets 16, a diffuser 17 filled with fibrous material 18. The inlet pipe 19 for supplying compressed air is connected to the premixing chamber 20. A pipe 21 is installed at a right angle to the pipe 19 giving foam-forming liquid / filler, it ends with nozzle 22. The output of the finished foam from the foam generator is through the pipe 23. Form 11 consists of a pallet 25, a fixed (rigid) side 26, a folding side 27 connected to the pallet 25 through a hinge 28 and a set of separation elements for re-forming the forming cells, consisting of a flexible sheet 29 with attached transverse partitions 30, visors 31 attached to the extreme partitions and openings 32 to capture the separating element when stripping. In the assembled form, the form is fixed coherently by the rods 33 with the help of clamping nuts 34.

For the passage and alignment of the dividing elements in the mold, holes 35 are provided in the sheets 29. The visors 31 protect the tie rods 23 from falling into the cellular concrete mixture during molding. The height of the partitions 30 slightly increases the height of the sheet 29 for better smoothing the surface of the blocks 36.

The line works as follows.

6 mortar mixer 1 receive a cement-sand mortar and dispenser 2 is fed into a foam mixer 3, foaming solution is supplied through a liquid dispenser 4 from the tank 5. All this is mixed until a homogeneous mass is obtained.

Then in the foam concrete mixer 3 through the time sensor 6 from the foam generator 7 serves the foam and continue to mix until a ready-mixed concrete mixture is obtained. The finished mixture with the help of a screw pump 10 is poured into molds 11. Forms filled with a cellular concrete mixture, using, for example, a crane, are fed into the chamber 13 for increasing the forming strength. This device may be a chamber for heat and moisture treatment or simply an insulated chamber, for example, from a film that protects the cellular concrete mixture from drying out. In this case, the set of strength occurs in vivo. After a set of the required strength, the molds 11 are moved to the stripping point 14, where the finished foam concrete blocks 36 are released and stored.

Finished foam is produced in the foam generator 7. Compressed air is supplied from the compressor 8 to the premixing chamber 20 through the nozzle 19. At the same time, foaming liquid enters the chamber 20 through the nozzle 21 and is sprayed with the help of nozzle 22. Good mechanical effect of these two flows occurs pre-foaming. The resulting foam-air mixture is first passed through a layer

fibrous material 18 in the diffuser 17, and then through the packet of nets 16. At the same time, in the diffuser 17 there is a primary shining of the head and its stabilization, and after passing through the packet of nets 16 a finely dispersed stable and uniform foam crawls. The finished foam through the pipe 23 is introduced from the foam generator.

The process of forming foam concrete blocks occurs as follows. In the assembled form 11, the cellular concrete mixture is poured into the cells and the surface is leveled. After a set of the forming strength of the hydroforming products, formwork. To do this, the tie rods 33 are removed, the hinge board 27 is lowered to the horizontal position and the blocks 36 are removed in two stages. I stage. Released 1fay dividing element of the tooling for 32 turns is moved to a horizontal position. II stage. By gripping the handles 32 from the dazos of the sides, the dividing element of the tooling rises, thereby flexing the sheet 29 of the bend of it, releasing the blocks 36 that remain on the pallet. Blocks and forms are removed and the stripping operation is repeated. The assembly of the liberated form is done in the reverse order.

Claims (4)

1. A line for the production of foam concrete blocks, including a mortar mixer, a foam generator, a foam concrete mixer, a device for filling molds with a cellular concrete mixture, molds, a device for forming strength products, a product forming unit, dispensers and a control panel, characterized in that the foam generator is connected with a compressor for supplying compressed air and with a pump installed after the capacity of the foaming solution, the concrete mixer is connected with the mortar oil through a cement-sand mortar dispenser, with a foam generator - through a time sensor and with a container for a foaming solution - through a fluid dispenser, and the device for filling the molds with a cellular concrete mixture is made in the form of a screw pump.  2. The line according to claim 1, characterized in that the device for a set of forming strength is made in the form of a chamber for heat and moisture treatment or in the form of an insulated chamber that prevents evaporation of moisture from the surface of the cellular concrete mixture.  3. A foam generator comprising a housing with a packet of grids, a diffuser, inlet and outlet nozzles, a pre-mixing chamber, characterized in that the cavity of the diffuser is filled with fibrous material, and the pre-mixing chamber further comprises a nozzle for supplying compressed air mounted at right angles to the supply nozzle a foaming solution, the latter provided with a nozzle. 4. A mold containing a pallet, sides and dividing elements for creating forming cells, characterized in that one side is fixedly mounted on the pallet and the other is rotatably mounted, the dividing elements are made of a flexible sheet with transverse partitions.