KR20010068746A - A drying apparatus for curing concrete by hot wind, and a method there-of - Google Patents

Abstract

PURPOSE: A steam hot wind dryer for curing concrete and a drying method thereof are provided to obtain a quality concrete building even in winter by regularly supplying high temperature steam to the concrete building with a hot wind while curing concrete. CONSTITUTION: A steam hot wind dryer for curing concrete contains a combustion chamber(1a) inside a combustion pipe(1) and an oil burner(2) on the rear side of the combustion pipe with an injection nozzle(2a). A blower(3) and an electric lamp oil supply pump are placed on the rear side of the oil burner. A steam pipe(7) is installed in the combustion chamber to generate steam with combustive heat. An electronic water supply pump is located on the rear side of the steam pipe and a dual cover(9) is fixed between the combustion pipe and a housing(4) by a combustion pipe fixer(10) and a dual cover fixer(11). A direction adjuster(17) and an oil tank(5) are installed in the lower portion of the housing to adjust the direction of a hot wind and steam. With combustive heat, the water in the steam pipe is evaporated and steam is discharged through a steam exhaust hole(16). The combustive heat is forcibly discharged through a hot wind exhaust hole(13) by the blower.

Description

A drying apparatus for curing concrete by hot wind, and a method there-of}

The present invention relates to a hot air dryer by steam used for curing concrete in winter in civil engineering and building sites. More specifically, when the temperature drops sharply in winter, the cement mortar does not harden and freezes. Therefore, the high temperature of the combustion chamber is formed by forcibly discharging the high temperature heat from the combustion chamber to the blower fan to help the concrete curing. It relates to a steam hot air dryer for generating steam.

In general, the hot air dryer has a simple structure of forcibly discharging the combustion heat from the front by a blower fan or directing the hot air out of the dryer without a blower fan. When the hot air dryer is used for curing concrete in winter, the temperature of the drying space is high and the drying rate of water evaporates faster than the speed of bleeding, which causes water shortage on the concrete surface. Shrinkage cracks occurred during the burner, and hot air generated from the burner was not evenly distributed in the drying space, thereby making it impossible to uniformly dry the cured concrete.

The present invention is to solve the above problems is to provide a high-quality steam evenly to every corner of the curing concrete building with hot air to the concrete surface being cured to obtain a high-quality concrete building even in winter.

In order to achieve the above object, the present invention is characterized by forcibly discharging the heat of combustion generated by the combustion burner by a blower and simultaneously constructing a steam generator in the combustion chamber to inject hot steam together.

Fig. 1A is a front view of the dryer of the present invention when the steam pipe is coiled

1B is a plan view of the dryer of the present invention when the steam pipe is coiled

Figure 1 C is a cross-sectional view A-A for showing the cross section of the combustion chamber when the steam tube is coiled

2A is a plan view of the combustion chamber when the steam pipes are arranged side by side as the dryer of the present invention.

2B is a cross-sectional view B-B for showing a cross section of the combustion chamber when the steam pipes are arranged side by side as the dryer of the present invention.

3A is a front view when the dryer of the present invention forms a space on the inner wall of the combustion pipe and is used as a steam pipe;

FIG. 3B is a cross-sectional view taken along the line C-C to show a section of the combustion chamber when the dryer of the present invention forms a space on the inner wall of the combustion chamber and is used as a steam pipe.

Figure 4 is a schematic diagram of a state in which a stainless corrugated pipe is connected to the steam outlet as a dryer of the present invention

<Description of the symbols for the main parts of the drawings>

1. Combustion tube 1a. combustion chamber

2. Oil burner 2a. Spray nozzle

3 blower 4. Housing

5. Oil tank 6. Kerosene supply electric pump

7. Steam Pipe 8. Water Supply Electronic Pump

9. Double cover 10. Combustion pipe holder

11. Double Cover Fixture 12. Hot Air Hole

13. Hot air outlet 14. Space between combustion pipe and double cover

15. Space between double cover and housing 16. Steam outlet

17. Directional controller 18. Corrugated pipe

19. Stainless pipe 19a. hole

20. Handle

The present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, a combustion chamber 1a is located inside the combustion tube 1, and an oil burner 2 having a spray nozzle 2a is formed at the rear thereof, and an oil burner 2 is located behind the oil burner 2. Blower (3) for forcibly discharging the hot air generated in the) and kerosene supply electric pump (6) for supplying fuel from the oil tank (5) installed in the lower housing (4) to the injection nozzle (2a) is fixed have. In addition, a steam supply tube (7) is installed in the combustion chamber (1a) to generate steam by the heat of combustion of the fuel, and a water supply electromagnetic pump (8) for supplying water to the steam tube (7) behind the steam tube (7). Is installed. A double cover 9 is fixedly installed between the combustion chamber 1a and the housing 4 by the combustion tube fixing stand 10 and the double cover fixing stand 11 to prevent high heat from being directly transmitted to the inner wall of the housing 4. It is.

Referring to the operation of the hot air blower of the present invention will be described.

When concrete is placed in the drying space, the windshield is installed in the drying space and power is supplied to the dryer. When the combustion flame is ignited in the injection nozzle 2a of the oil burner 2, the combustion chamber 1a generates high heat of combustion and the high heat of combustion is generated. The blower 3 forcibly enters the combustion chamber 1a through the hot air hole 12 and is discharged to the front hot air outlet 13. A part of the blower is spaced between the combustion tube and the double cover outside the combustion chamber 1a. And water discharged through the space 15 between the combustion tube and the housing, and at the same time, the water supplied to the steam tube 7 by the water supply electronic pump 8 is heated and vaporized by the heat of combustion in the combustion chamber 1a and steam It is discharged through the outlet 16. In addition, the steam generator 7, which is a steam generator, can be coiled as shown in Figs. 1A and B, but some steam pipes are installed side by side in the combustion chamber 1a as shown in Figs. As shown in B, a space may be formed in the inner wall of the combustion chamber 1a so that the heat of combustion heats the surface of the steam tube to generate steam.

On the other hand, if a part of the building to be cured has a special structure, and there is a place where hot air and steam are less affected, the steam outlet (16) can evenly spray hot air and steam evenly to every corner of the building. ) May be formed in a direction in which hot air is discharged, and a direction controller 17 may be formed in a lower portion of the housing 4 of the steam hot air dryer, and a temperature sensor (not shown) may be mounted on the oil burner 2 to control temperature. The dryer of the present invention may be narrowed by connecting a stainless pipe 19 having a plurality of holes 19a in the steam outlet 16 to the steam pipe 16 as a corrugated pipe 18 as shown in FIG. 4. Steam can also be vented to corners that cannot be used directly.

Reference numeral 20 is a handle.

As described above, the present invention generates high-temperature steam by using high temperature in the combustion tube to discharge the combustion heat and at the same time enable steam injection, and adjust the temperature and humidity in the drying space by adjusting the hot wind temperature discharged to the outside air. Hot air and steam can be sprayed evenly on the inner wall of the curing concrete, so there is no lack of water on the surface of the concrete even in winter, and shrinkage cracking does not occur during curing of the concrete.

Claims (2)

In the winter hot air drying apparatus for concrete curing, there is an oil burner (2) formed with a combustion chamber (1a) inside the combustion pipe (1) and a spray nozzle (2a) behind it, and a blower behind the oil burner (2). (3) and a kerosene supply electric pump (6), and a steam pipe (7) for generating steam by the heat of combustion of the fuel is provided in the combustion chamber (1a), and behind the steam pipe (7) a steam pipe ( 7) there is a water supply electronic pump (8) for supplying water, and between the combustion tube (1) and the housing (4) a double cover (9) by the combustion tube holder (10) and the double cover fixture (11) The fixed hot steam dryer for curing the concrete, characterized in that the lower portion of the housing (4) is installed a direction controller (17) and the oil tank (5) for adjusting the hot air discharge direction and the steam discharge direction. In the drying method for curing concrete in winter, a steam pipe (7) supplied by a water supply pump when hot combustion heat is generated by the flame burned by the injection nozzle (2a) of the oil burner (2) installed in the combustion chamber (1a). E) to evaporate the water to advance through the steam outlet (16), hot combustion heat is forcibly discharged by the blower fan (3) to the hot air outlet (13) where hot air and steam are required by the direction controller (17) Steam hot air drying method for curing the concrete, which can be discharged.