RU2561213C1 - Method of impregnation of porous materials and device for its implementation - Google Patents

Abstract

FIELD: woodworking industry.

SUBSTANCE: method of impregnation of porous materials comprises loading the material into the chamber followed by sealing, creation of vacuum in the chamber, filling it with the impregnating liquid, setting the material, pumping the liquid, and extraction of the material from the chamber. The volume of the impregnated porous material is selected equal to the volume of the chamber. Filling the impregnating liquid to the chamber is carried out while pumping the air to complete filling the chamber. The temperature of the impregnating liquid is 60°C. The device for impregnating porous materials comprises a hermetically sealable impregnation chamber, a bath for impregnating liquid, a vacuum pump and a liquid pump interconnected by the system of pipes and valves. The device for impregnating porous materials additionally comprises a container for the product, made mesh with the upper and lower caps and a hook. The bath for the impregnating liquid is provided with a stirrer and a heating system. The suction pipe of the vacuum pump is connected with a tight cover of the impregnation chamber.

EFFECT: improved quality of impregnation.

2 cl, 1 dwg

Description

The invention relates to a technology for impregnating porous materials with flowing solutions, as well as to equipment for its implementation.

A known method of impregnating porous materials, including loading the material into the chamber, filling it with an impregnating liquid, followed by sealing, creating a vacuum in the chamber, supplying the impregnating liquid under pressure, holding the material, reducing the pressure to atmospheric, pumping the liquid and removing material from the chamber, characterized in that the creation of a vacuum in the chamber is carried out stepwise to a deep vacuum.

A device for impregnating porous materials is known, including a hermetically sealed impregnating chamber, a bath for impregnating liquid and a liquid pump interconnected by a system of pipelines and taps, characterized in that it is equipped with a container connected to the suction port of the vacuum pump, connected, in turn, through vacuum shutter with a high-speed trigger with an impregnating chamber. In addition, the high-speed trigger of the vacuum shutter is made in the form of a lever mounted on the bracket, rigidly connected by means of a ratchet mechanism with a vacuum shutter, the end of which is pivotally connected to the power spring. The device is equipped with an overflow tank mounted above the impregnation chamber and connected to the bath for impregnating liquid. At the same time, a moisture separator is mounted between the vacuum shutter and the container (RF Patent No. 20111511, class C. В27К 3/02, В29В 15/10, Е01В 31/20, publ. 04/30/1994).

The disadvantages of the known method and device are:

The complexity of the implementation and the poor quality of impregnation.

The technical result of the method is achieved by the fact that in the method of impregnation of porous materials, including loading the material into the chamber followed by sealing, creating a vacuum in the chamber, filling it with impregnating liquid, holding the material, pumping the liquid and removing material from the chamber, additionally choose the amount of impregnated porous material equal to the chamber volume, the chamber is filled with an impregnating liquid while pumping air until the chamber is completely filled, and the temperature of the impregnating liquid bone is 60 ° C.

The technical result of the device is achieved in that the device for the impregnation of porous materials, including a hermetically sealed impregnation chamber, a bath for impregnating liquid, a vacuum pump and a liquid pump, interconnected by a system of pipelines and taps, additionally contains a container for the product, made mesh with the top and bottom caps and hook, and the bath for impregnating liquid is equipped with a stirrer and a heating system, and the suction pipe of the vacuum pump is connected to a sealed cover impregnation chamber.

The drawing shows a structural diagram of a device for the impregnation of porous materials, where: 1 - impregnation chamber; 2 - bath for impregnating liquid; 3 - vacuum pump; 4 - liquid pump; 5 - capacity for the product; 6 - covers; 7 - a hook; 8 - mixer; 9 - heating system; 10, 11 - cranes.

The device for impregnating porous materials contains a hermetically sealed impregnating chamber 1, a bath for impregnating liquid 2, a vacuum pump 3 and a liquid pump 4, interconnected by a system of pipelines and taps 10, 11, and the container for the product 5 is made of mesh with upper and lower covers 6 and a hook 7, and the bath for the impregnating liquid 2 is equipped with a stirrer 8 and a heating system 9, and the suction pipe of the vacuum pump 3 is connected to the sealed cover of the impregnation chamber 1.

A device for impregnating porous materials operates as follows. At the beginning of the impregnation process, the taps 10, 11 are closed. The impregnated porous material is loaded through the top cover 6 into the product container 5, which, using the hook 7, is placed in a hermetically sealed impregnation chamber 1 and closed with a sealed lid. The vacuum pump 3 provides the necessary discharge in the impregnation chamber 1, which is maintained for a certain time. Then the taps 10, 11 are opened and the impregnating liquid flows by gravity into the impregnation chamber 1. The vacuum pump 3 maintains the necessary discharge until the impregnated material is completely covered with the impregnating liquid. After that, the liquid pump 4 is turned on, providing for the forced circulation of the impregnating liquid from the impregnating liquid bath 2 to the impregnation chamber 1 and vice versa. Before this, the heating system 9 provided heating of the impregnating liquid in the bath for impregnating liquid 2, equipped with a stirrer 8, to a temperature of 60 ° C. After a certain time, the valve 11 is closed and the impregnation liquid is pumped out by the liquid pump 4 into the impregnation liquid bath 2. The impregnated porous material is discharged for drying.

Claims (2)

1. The method of impregnation of porous materials, including loading the material into the chamber with subsequent sealing, creating a vacuum in the chamber, filling it with impregnating liquid, holding the material, pumping the liquid and removing material from the chamber, characterized in that the volume of impregnated porous material is chosen equal to the volume of the chamber, filling the chamber with an impregnating liquid is carried out while pumping out air until the chamber is completely filled, and the temperature of the impregnating liquid is 60 ° C. 2. A device for the impregnation of porous materials, including a hermetically sealed impregnation chamber, a bath for impregnating liquid, a vacuum pump and a liquid pump interconnected by a system of pipelines and taps, characterized in that it contains a container for the product, made of mesh with top and bottom covers and hook, and the bath for the impregnating liquid is equipped with a stirrer and a heating system, and the suction pipe of the vacuum pump is connected to the sealed cover of the impregnation chamber.

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