KR100948241B1 - The manufacturing method of scrubber using frp and scrubber by frp - Google Patents

Abstract

PURPOSE: A manufacturing method of scrubber consisting of fiber glass reinforced plastics and the scrubber manufactured thereby are provided to improve driving efficiency and durability by assembling each component after producing the component with the fiber glass reinforced plastics. CONSTITUTION: A manufacturing method of scrubber consisting of fiber glass reinforced plastics includes the following steps: preparing an elbow pipe mold, a straight pipe mold, a board mold, and a flange mold(S1); applying a releasing agent on the front surface of each mold(S2); forming FRP while dipping thermosetting resin in glass fiber(S3); arranging each mold; forming a water tank and a manhole; connecting a nozzle pipe with a main body case; connecting the flange to a venturi pipe, a duct, a nozzle pipe, and the manhole; and assembling the flange of the duct and the flange of the venturi pipe(S8).

Description

Method for manufacturing a washing tower composed of FRP and washing tower made of LFRP {the manufacturing method of scrubber using FRP and scrubber by FRP}

The present invention relates to a method for manufacturing a cleaning tower (scrubber) consisting of F-AlP, and more particularly, to a cleaning tower made of F-AlP, and more specifically, to form a mold made of F-AlP, and through this mold , Venturi pipe, duct, water tank, nozzle pipe, and manhole are formed and configured by FRP, and flanges are integrally formed at each connection part thereof, and the fixed size is fixed by bolts and nuts against each flange. The present invention relates to a method for producing a washing tower, which is composed of F-AlP, has excellent corrosion resistance and heat resistance, and can be used for a long time, and has excellent durability and high operating efficiency.

In general, a scrubber is a device that sprays a liquid onto a gas introduced into a tower, and washes and removes air pollutants or fine dust contained in the gas through the liquid. The exhaust gas from the filter is introduced into the washing tower through the venturi pipe connected to the duct, and the water circulated up to a certain height by the water tank is sprayed by using a nozzle to prevent the air pollution contained in the gas. The material and dust are mixed with water to remove it, and the purified gas is discharged to the outside, which is used as a prevention facility installed in the rear of the incinerator.

The exhaust gas flowing into the scrubber usually contains air pollutants and fine dust such as sulfur oxides, nitrogen oxides, and sulfur dioxide. When water is injected into the exhaust gas, the water absorbs the air pollutants and sulfuric acid. As it is converted into oxide, it is discharged to the outside in a state containing dust, and through this, the exhaust gas is purified and discharged to the outside, and such a washing tower typically includes all components of the outside of the casing and the nozzle tube crossing the inside of stainless steel. As it is made of steel, the sulfuric acid oxide is continuously contacted with the stainless steel case, the nozzle tube, and the circulating water tank, which causes corrosion of the stainless steel case. It has a short lifespan of three years, resulting in high corrosion There are many problems such as the need to replace the washing tower at regular intervals, and the overall operating efficiency of the washing tower is lowered due to inflow of external air due to corrosion of the stainless steel case.

Accordingly, the present invention has been made to solve the above problems, and all components, such as the body case, venturi tube, duct, water tank, nozzle tube, etc. individually to FRP (Fiber Glass Reinfored Plastics) The manufacturing method of the washing tower composed of F-Alp, which manufactures and assembles the washing tower, has excellent corrosion resistance and heat resistance, has strong durability, and can continuously operate for a long time while maintaining high operating efficiency. And it aims at constructing the washing | cleaning tower manufactured by FRP so.

The present invention for solving the above problems is a mold preparation step (S1) of forming a pipe-shaped straight tube mold, elbow tube-shaped elbow tube mold and plate-shaped plate mold with F-Alp; A release agent application step (S2) of applying a release agent into each mold; An F-AlP forming process (S3) for forming F-ALP of a predetermined thickness into each of the mold front and inside; Demolding and organizing process of demolding the main body case, the venturi tube, the duct, the nozzle tube, the water tank plate, and the manhole plate, respectively (S4); A hole forming step of forming a hole for connecting the duct, the water tank, and the manhole to the side of the main body case (S5); Form a water tank that connects the water tank plate to the formation of epi-Al, form a manhole that connects the manhole plate to the formation of F-AlP, connect them to the formation of F-Alp in the hole of the body case, and insert the duct into the hole of the body case. FRP joint process (S6); A flange joint step (S7) of fitting a flange outside the mutually connected portions of the venturi tube, the duct, and the nozzle tube to form a gap of the AlF; The venturi tube and the duct are connected to each other, and the washing tower is manufactured while sequentially passing through each step of the assembling process (S8) in which each butt flange is fixed by a combination of bolts and nuts to form a washing tower.

In addition, while the manufacturing process is manufactured by the FRP, the venturi tube into which gas is introduced into one side of the main body case is connected by a duct, and the water tank is connected to the lower part of the main body case, and the inside of the main body case is horizontally at a predetermined height. A nozzle tube for squeezing is connected to the water tank, and each nozzle tube comprises a manhole through which a person enters and a cleaning tower having a support plate on an inner side thereof.

Through this, the washing tower composed of F-ALP has excellent corrosion resistance and heat resistance and has high durability, and it has high operation efficiency while using it continuously for a long time even if it continuously touches water containing sulfuric acid oxide circulating inside. No gaps occur, no inflow of external air, and each tube and plate are manufactured separately and have high assembly and construction properties to be assembled by the bolt and nut coupling method.

The present invention relates to a method for manufacturing a cleaning tower (scrubber) consisting of F-AlP, and more particularly, to a cleaning tower made of F-AlP, and more specifically, to form a mold made of F-AlP, and through this mold , Venturi pipe, duct, water tank, nozzle pipe, and manhole are formed and configured by FRP, and flanges are integrally formed at each connection part thereof, and the fixed size is fixed by bolts and nuts against each flange. The present invention relates to a method for producing a washing tower, which is composed of F-AlP, has excellent corrosion resistance and heat resistance, and can be used for a long time, and has excellent durability and high operating efficiency.

Briefly describing the present invention, a mold preparation step (S1); Release agent application process (S2); FAlp formation process (S3); Demolding and cleaning process (S4); Hole forming step (S5); FRP joint process (S6); Flange joint process (S7); Venturi pipes into which the gas flows to one side of the main body case are connected by ducts while passing through each step of the assembly process (S8), the water tank is connected to the lower part of the main body case, and the inside of the main body case is horizontally The nozzle tower is connected to the water tank, and by manufacturing a washing tower having a manhole through which each person enters and a support plate on the inner side of the nozzle tube, the cleaning tower composed of FLP is excellent in corrosion resistance and heat resistance. It has high durability, high durability, long lasting use and continuous operation even if it continuously touches water containing sulphate which circulates inside, and there is no gap and no inflow of external air. And plate are manufactured separately and have high assembly and constructability to assemble by bolt and nut coupling method, which makes the production easy. Have

With reference to the embodiments shown in each drawing the manufacturing method of the washing tower and the washing tower made of F-AlP of the present invention having the above characteristics will be described in more detail.

When the exhaust gas is introduced into the cleaning tower 1 of the present invention, the air pollutants and dust contained in the exhaust gas are mixed with the water while the water is injected to remove the exhaust gas to purify the exhaust gas. In the washing tower 1 operating in this way, the present invention provides a main body case 10, a venturi tube 20, a duct 30, a water tank 40, and a nozzle tube 50 of the washing tower 1. ) And the manhole 60 through which the person enters and exits the body case 10 and the support plate 70 on which the person stands and support are made of FLP, which has high corrosion resistance and includes sulfur oxides and nitrogen contained in the exhaust gas. Even if the oxide, sulfur dioxide and fine dust or sulfuric acid contained in the water directly close to prevent corrosion and improve the assembly, the core content is to have excellent durability and high operating efficiency.

Looking at the manufacturing method of the washing tower (1) consisting of the FRP first as shown in Figure 1 mold preparation step (S1); Release agent application process (S2); FAlp formation process (S3); Demolding and cleaning process (S4); Hole forming step (S5); FRP joint process (S6); Flange joint process (S7); It is manufactured while going through each step of the assembling step (S8) in sequence. First, each of these steps will be described in more detail. First, the mold preparation step (S1) is a step of preparing a mold for forming F-ALP. In order to manufacture the main body case 10, the venturi tube 20 and the nozzle tube 50 of the washing tower (1) according to the invention, the pipe-shaped flat tube mold 100, and the duct 30 Elbow tube shaped elbow 200 and the hexagonal water tank 40 and the plate mold 300 for manufacturing each side of the manhole 60 and the support plate 70 in the form of a plate, and the venturi tube 20 ) And a flange mold 400 for manufacturing the flanges 21, 31, 51, 62 to be connected to one end of the duct 30, the nozzle tube 50, and the manhole 60, respectively.

First, as shown in FIG. 8, the flat tube mold 100 includes a flat plate 110 formed of FRP with a square plate and a ring 120 having a circumference (circumference) of the flat plate 110. Is provided, the flat plate 110 is rounded, and both ends of the ring 120 to form a state configured to form a straight pipe-shaped flat tube mold 100, the straight tube of the mold 100 According to the circumference (inner or outer diameter), the straight tube mold 100 is formed in various pipe diameters and lengths by fixing the ring 120 in a plurality of places, and the main body case of the same size and shape as the inner diameter of each flat tube mold 100 ( 10) and the venturi tube 20 and the nozzle tube 50 to be manufactured.

Secondly, the elbow tube mold 200, as shown in Figure 6 is provided with a wooden (W), through which, the length of the elbow tube ('L' shaped tube) of the duct 30 form the length thereof A pair of half tube molds 210 are formed in each of the half tube molds 210 formed in the shape cut in half along the direction, and the half tube molds 210 are formed in a shape of a wooden mold (not shown). Also considered in this regard, by contacting each other a pair of foot tube mold 210 to the inside of the half tube mold 210 to be formed smoothly, the ring 220 is also fitted and fixed at both ends of the elbow tube, The mold 200 is constituted.

Third, the plate mold 300 is a square plate-shaped mold formed by FRP as shown in FIG. 10, and has a square plate-shaped water tank plate constituting each side surface of the water tank 40 in the form of a cube. (41), square plate shaped square plate shaped manhole plate (61) constituting each side of the square plate shaped plate and the plate-shaped support plate 70 serving as a pedestal to form a square plate that fit each size And forming a square plate formed of FRP of the same size and shape as the plate mold 300 by curing the glass fiber impregnated with a thermosetting resin to the front of the square plate-shaped plate mold 300, By doing so, such a square plate allows the water tank plate 41, the manhole plate 61, and the support plate 70 to be manufactured, respectively.

The flat tube 110 of the straight tube mold 100 and the half tube mold 210 and the plate mold 300 of the elbow molding mold 200 is composed of FRP, which has a thickness of at least 2 mm to 5 mm In this configuration, elastic bending is possible, but it has a minimum strength that does not break even when bent.

Fourthly, the flange mold (not shown) is a disk-shaped flange shape which can be fitted to one end of the venturi tube 20, the duct 30, and the nozzle tube 50 by using a metal such as steel or a synthetic resin material. In the flange shape of the square plate shape which can be fitted in one end of the manhole 60, it is comprised in the shape penetrated by the inside or the inside of a rectangle.

Thus, in the mold preparation step (S1) to form a straight tube mold 100, an elbow tube mold 200, a plate mold 300 and a flange mold, respectively, according to a plurality of standards, the following release agent application step (S2) is continued This is a process of cleanly arranging the inner surface of the straight tube mold 100 and the elbow molding mold 200 and one surface of the plate mold 300 and the flange mold, and applying a release agent for RF, such as wax, in detail. After cleaning the inside of each of the straight tube mold 100 and the elbow tube mold 200 and the plate mold 300 and the flange mold prepared in the mold preparation step (S1), and then applying a release agent, and after a certain time The step of wiping, and then, the RF Al formation step (S3) is performed on the inside of each of the straight tube mold 100 and the elbow tube mold 200 to which the release agent is applied, and the plate mold 300 and one surface of the flange mold. Within 10 mm while impregnating the glass fiber with a thermosetting resin It is formed to a certain thickness of 20mm, and curing them to form a constant thickness of the RF Alpe having each mold form, the formation of such RF Al will be described in more detail later.

Next, the demolding and grooming step (S4) is to remove the formed RF Al from each mold, and to clean up (trimming, trimming) by removing sands or grinders that protrude or grind at each edge portion. Deformation in each mold is easily performed by applying a silver release agent, but the straight tube mold 100, the elbow tube 200, the plate mold 300, and the flange mold which have removed the rings 120 and 220 are slightly removed. Removing the mold while twisting makes it easier to demold.

The subsequent hole forming step S5 is a step of drilling the side surface of the main body case 10 formed through the above process, and as shown in FIG. 4, 5, or 7, a duct is formed on one side of the main body case 10. 30 to form a hole for connecting, the upper one side to form a hole for inserting the nozzle tube 50 according to the height and a hole for connecting the manhole 60 to enter and exit, the water tank ( It is formed by drilling a hole connected to 40).

Next, in the FRP joint step S7, the water tank plate 41 is formed to form the water tank 40, the manhole plate 61 is formed to form the manhole 60, and the body case 10. In the process of connecting the duct 30, the water tank 40, the nozzle tube 50, and the manhole 60 in each hole of the first hole, first, the water tank plate 41 is provided with a cube as shown in FIG. In the state, adjacently adjacent to each other and overlapping integrally connected to form a hexahedral water tank 40, each side of the water tank 40, the connection portion 42 for connecting various pipes And it is preferable to further connect the manhole 43, etc., which the person enters, and the step of overlapping the water tank plate 41 formed of the F-Alp is a thermosetting resin to the glass fiber as in the F-Alp forming step (S3) Lamination and curing while impregnating, and this overlapping method is further described later. All.

In addition, the manhole plate 61 is also provided in the form of a square tube in the same manner as described above, overlapping along the surface adjacent to each other and integrally connected to form a manhole 60 of a predetermined size.

After forming the water tank 60 and the manhole 60 as described above, each hole of the body case 10 connects the duct 30 and the water tank 40 and the nozzle tube 50 and the manhole 60. 5, the hole on one side of the main body case 10 is inserted into one end of the duct 30, the other end is fixed to a position connected to the venturi tube 20, overlapping along the surface in contact with each other As shown in FIG. 4, the lower hole connects one side of the water tank 40 and overlaps one another along the surface in contact with each other to integrally connect the body case 10 and the water tank 40. The interior of the penetrates each other to be connected.

As shown in FIG. 7, the upper hole of the main body case 10 includes one end of the rectangular manhole 60 and overlaps with each other to be integrally connected to each other so that a person can pass therethrough. 60) the upper hole is inserted into the nozzle tube 50 by overlapping along the side of the nozzle tube 50 side and the body case 10 in contact with each other to connect integrally.

At this time, as shown in Figure 12 is provided with a support plate 70 in the horizontal direction in the lower portion of each manhole 60 of the inner surface of the main body case 10 is also in contact with each other inside the support plate 70 and the main body case 10 By overlapping and integrally connected along the surface, a person entering the main body case 10 through the manhole 60 can step on the support plate 70 and move.

Next, the flange joint step S7 connects the flanges 31 and 21 to the side ends of the duct 30 and the venturi tube 20 that are connected to each other, and the nozzle tube 50 and the manhole 60. A process of connecting the flanges 51 and 62 along the outer ends of the pipes by fitting the flanges 21 and 31 to the side ends of the venturi tube 20 and the duct 30. It is formed integrally through the formation of FRP by overlap along the connected gap, and the flange 51, 62 is also fitted to the outer end of the nozzle tube 50 and the manhole 60, and overlaps along the connected gap. By integrally forming through the AlF through the formation, by connecting the flange 21, 31 of the venturi tube 20 and the duct 30 in contact with each other or the flange of the nozzle tube 50 and the manhole 60 ( 51) (62) to connect other connectors, covers, etc., the formation of which is further described later.

Finally, as shown in FIG. 5 through the assembling process (S8), the flange 21 of the venturi tube 20 is brought into contact with the flange 31 of the duct 30, and these are integrally connected by bolts and nuts. Assemble, the flange 51 of the nozzle pipe 50 is connected to the flange of the connector pipe connected to the water tank 40, and coupled to each other by a bolt and a nut, integrally connected and assembled, the flange 62 of the manhole 60 By closing the cover by the), the cleaning tower 1 of the present invention is completed.

During the above process, as shown in FIG. 11, the upper part of the main body case 10 of the cleaning tower 1 further includes a cover 80 covering the opened upper part, and the main body as shown in FIG. By further connecting the cover 80 provided in the case 10 with the flanges to each other by connecting with each other by a bolt and a nut to connect and assemble integrally, the shape of the cleaning tower 1 can be finished, such a cover (80) It is also preferable to constitute F-Alp.

FRP (Fiber Glass Reinfored Plastics), which is a core technology used in the manufacturing method of the washing tower 1 composed of the FRP of the present invention, is impregnated with a thermosetting resin such as an unsaturated polyester resin or a phenol resin in glass fiber as a reinforcing material. It refers to a composite material laminated and cured while having good workability, lightness and toughness, and excellent corrosion resistance. Details of each material are as follows.

First, the glass fiber has a very high tensile strength, specific tensile strength, high modulus of elasticity and impact energy absorption, excellent heat resistance, non-flammability, excellent chemical durability, and non-absorbability. , Chopped Straand Mat, Rovin Cloth, Yarn Colth, and Surface Mat, which can be selected as appropriate or used in combination with other kinds. .

In addition, Unsatura polyester resin (UPR) is an insoluble insoluble thermosetting plastic, which is excellent in terms of required properties compared to the price, despite the lightness, mechanical properties (strength), electrical insulation, corrosion resistance (chemical resistance) ), Heat resistance, acid resistance, water resistance is excellent, and the application of the reinforcement has various features.

In addition, the FRP formation process through the overlap in the process of connecting each FRP component in the FRP formation process and the FRP joint process (S6) and flange joint process (S7) of the FRP formation process (S3). Referring to Figure 2 in detail with reference to the process diagram, which is to form the RF Alp, a thermosetting resin coating step (G1) of first applying the thermosetting resin; A glass fiber adhering step (G2) for attaching glass fibers to the thermosetting resin; A thermosetting resin application step (G3) of reapplying the thermosetting resin to the attached glass fiber; A predetermined thickness is formed through a defoaming step (G4) of removing the air bubbles contained in the thermosetting resin by pushing a roller, and then, the AlF is formed by a curing step (G5) of hardening each thermosetting resin.

Particularly, in the curing step (G5), the thermosetting resin has a property of being cured by heat. In the case of an unsaturated polyester resin, a curing agent of 1% to 2% of the amount of the unsaturated polyester resin to be used is mixed and used. By curing by self-heating, the curing time is allowed to cure through a proper time in a clean place at a temperature of about 25 ° C. and a humidity of about 60%, and at a curing temperature (about 60 ° C.) for a phenol resin. Apply heat to harden.

On the other hand, in the use of unsaturated polyester resin and phenol resin in the process of connecting each RF in the process of forming the RF Al formation of the RF Al formation step (S3), F Al joint process (S6) and flange joint process (S7) , Using each thermosetting resin alone to form FRP, or impregnating the glass fiber with one thermosetting resin to form a layer, or a certain thickness, and after curing the glass fiber with another type of thermosetting resin By impregnating and repeatedly forming one layer or a predetermined thickness, it is possible to obtain FLP having both the characteristics of the unsaturated polyester resin and the phenol resin.

Furthermore, since the phenol resin has a high heat resistance temperature of 240 ° C to 765 ° C and a low thermal conductivity of 0.2 (mW / m · h · ° C), the corrosion resistance and heat resistance of each component of the washing tower 1 according to the present invention. When the unsaturated polyester resin has a high heat resistance temperature of 120 to 150 ° C. and a low thermal conductivity of 0.8 to 0.9 (㎉ / m · h · ° C.), when the unsaturated polyester resin is a washing tower 1 used for high temperature, In the RF Al formation step (S3), F Al was formed by laminating an unsaturated polyester resin and glass fibers to a thickness of the first 10 mm, and the phenol resin and glass fibers were sequentially formed at a thickness of about 3 mm. FLP is formed by phosphorus lamination, and the inner side of each component is formed of phenol resin, and has high heat resistance through phenol resin, and heat effect of the phenol resin to later unsaturated polyester resin at low thermal conductivity Is minimized As will be such that the reinforcement over the unsaturated polyester resin made.

The cleaning tower 1 formed and assembled with the F-AlP described above is manufactured with the F-AlP, and is easily manufactured, assembled, and repaired. Sustainable enough to withstand direct contact with sulfur oxides, nitrogen oxides, sulfurous acid gas and water containing fine dust or sulfuric acid oxides, and have high operating efficiency and long-term continuous use. There is a characteristic that can maintain the original state continuously.

Furthermore, the thermosetting resin for forming the internal structure (inner layer) of each component of each component of the washing tower 1 is formed with approximately 3 mm of FRP using a phenol resin having high heat resistance and low thermal conductivity, The thermosetting resin forming the outer structure (outer layer) forms FRP using an unsaturated polyester resin having a good strength of about 10 mm, so that the inner structure withstands high heat of gas and does not transmit heat to the outer structure. The high strength of the external structure ensures continuous use.

Looking at the cleaning tower (1) made of the F-LP of the present invention that can be produced by the manufacturing method of the washing tower (1) composed of F-ALP as seen in the above manufacturing method, as shown in Figure 3 or 12 As described above, the venturi pipe 20 through which the exhaust gas flows is connected by the duct 30 connected to the side of the main body case 10 having a predetermined size, and a water tank for supplying water to the lower part of the main body case 10. 40 is connected to the water tank 40 has a configuration connected to the nozzle tube 50 crossing the inside of the body case 10 at a certain height, such a washing tower 1 is manufactured by FRP, Ben When the exhaust gas flows into the main body case 10 through the spur tube 20, the nozzle pipe 50 connected to the water tank 40 injects water into the main body case 10 while the air is contained in the exhaust gas. Mix and remove the substance and dust with water and drop it into the body case 10. And such that the exhaust gas is discharged to the outside, are introduced into the main body case 10 to the lower chaohreuneun water back water tank 40 is to purify the exhaust gas in a manner that rotation of the nozzle while the supply pipe (50).

In addition, while a person enters and exits the manhole 60 formed in the lower portion into which the nozzle tubes 50 of the main body case 10 of the washing tower 1 are inserted, the support plate provided on the inner surface of the main body case 10 ( 70) can be moved by stepping on, while stepping into the main body case 10 through the manhole 60, stepping on the support plate 70 to move to repair the nozzle tube 50 or the like or to clean and manage the interior.

1 is a manufacturing process of the washing tower according to the present invention.

Figure 2 is a process diagram of the FRP formation in accordance with the present invention.

3 is a perspective view of a washing tower according to an embodiment of the present invention.

Figure 4 is an assembly view of the cleaning tower according to an embodiment of the present invention.

5 is an assembly view of the cleaning tower according to the embodiment of the present invention.

Figure 6 is a perspective view of an elbow mold according to an embodiment of the present invention.

Figure 7 is an assembly view of the cleaning tower according to an embodiment of the present invention.

Figure 8 is a perspective view of the RF formed using a straight tube mold according to an embodiment of the present invention.

9 is a perspective view of a water tank according to an embodiment of the present invention.

Figure 10 is a perspective view of the RF formed using the plate mold according to an embodiment of the present invention.

11 is a perspective view of a lid according to an embodiment of the present invention.

12 is a side cross-sectional view of a washing tower in accordance with an embodiment of the present invention.

[Description of Symbols for Main Parts of Drawing]

1: cleaning tower 10: main body case 20: venturi tube

30: duct 40: water tank 41: water tank plate

50: nozzle tube 60: manhole 61: manhole plate

21, 31, 51, 62: flange 70: support plate 80: cover

100: straight tube mold 200: elbow tube mold 300: plate mold

Claims (10)

The flat tube 110 is rolled roundly to fix the straight tube mold 100 and a pair of half tube molds 210 cut along the longitudinal direction of the 'L' shaped tube. A mold preparation step (S1) each having an elbow tube mold 200 fixed to 220 and a plate mold 300 having a square plate shape, and a flange mold penetrating the center thereof; A release agent applying process (S2) of applying a release agent to the inner surface of the straight tube mold 110 and the elbow tube mold 200 and the plate mold 300 and the flange mold front; An F-Al formation step (S3) of forming an F-Al by lamination and curing while impregnating a thermosetting resin in the glass fiber to the side on which the release agent of each mold is applied; In the straight tube mold 100, the main body case 10, the venturi tube 20 and the nozzle tube 50 are demolded, and the duct 30 is demolded from the elbow tube mold 200, the plate mold 300 Demolding and organizing process (S4) demolding the water tank plate 41 and the manhole plate 61, and demolding the flanges 21, 31, 51, 62 from the flange mold, to clean each edge ; The water tank 40, which is connected to the water tank plate 41, and the manhole 60, which is connected to the manhole plate 61, are formed, and the duct 30, the water tank 40, and the manhole are formed on the side of the body case 10. FRP joint step (S6) to be in contact with the 60, the joint through the nozzle tube 50 into the main body case 10; Flange joining process of fitting flanges 21, 31, 51 and 62 to the end portions of the venturi tube 20 and the duct 30 which are in contact with each other and to the outer ends of the nozzle tube 50 and the manhole 60 ( S7); By manufacturing the washing tower 1 sequentially through an assembling process (S8) in which the flanges 31 and 21 of the duct 30 and the venturi tube 20 are brought into contact with each other and connected and assembled by a combination of bolts and nuts, The manufacturing method of the washing tower which consists of FAlP which is high in corrosion resistance and easy to manufacture. The method of claim 1, Next to the demolding and arranging process (S4), By further adding a hole forming step (S5) to form a hole for connecting the duct 30, the water tank 40, the nozzle tube 50 and the manhole 60 to the side of the main body case 10, Method for producing a washing tower composed of F-ALP, characterized in that the connection is correct. The method of claim 1, The FRP joint step (S6) and flange joint step (S7), In the joint of each component, by impregnating the thermosetting resin in the glass fiber along the surface and the gap which are in contact with each other, by connecting to the formation of F-Alp through lamination and curing, The manufacturing method of the washing tower which consists of F-AlP which makes the joint sound accurate. The method of claim 3, wherein In the demolding and arranging process (S4), the plate-shaped support plate (70) is further formed through the plate mold (300); In the FRP process (S6), by supporting the support plate 70 to the lower portion of the manhole 60 of the inner surface of the main body case 10, The manufacturing method of the washing tower which consists of FLP which makes it easy to enter / exit through the manhole (60). The method of claim 1, In the mold preparation step (S1), the flat tube 110 of the straight tube mold 100 and the half tube mold 210 and the plate mold 300 of the elbow tube mold 200 have a thickness of 2 mm to 5 mm. Consisting of alfalfa; In the subsequent release agent application step (S2) by applying a release agent for FRP and wiping after a certain time, A method for producing a washing tower composed of F-Alfi, characterized by further facilitating demolding of F-Alp formed in each mold. The method according to any one of claims 1 to 5, As the thermosetting resin to be used in the step F3 forming step (S3), By using an unsaturated polyester resin, but for the curing thereof, by mixing a curing agent of 1% to 2% of the amount of the unsaturated polyester resin, Method for producing a washing tower composed of F-Al-P, characterized by curing by self-heating. The method according to any one of claims 1 to 5, As the thermosetting resin to be used in the step F3 forming step (S3), By using a phenolic resin, for the curing thereof, by applying heat to the curing temperature of the phenolic resin to form FRP, The manufacturing method of the washing tower which consists of FLP which forms FLP. The method according to any one of claims 1 to 5, As the thermosetting resin to be used in the step F3 forming step (S3), First of all, the unsaturated polyester resin is used to form FRP of a certain thickness, and a PF resin is formed on the upper portion thereof by using a phenolic resin, and the inner side is configured to form a phenolic resin; The unsaturated polyester resin is used by mixing a curing agent of 1% to 2% of the amount of the unsaturated polyester resin for curing thereof, and the phenol resin is heated to the curing temperature of the phenol resin to form F-ALP for curing thereof. by doing, The manufacturing method of the washing tower which consists of alfalfa which improves heat resistance with an inner layer and raises an intensity with an outer layer. A main body case 10 in the form of a tower; A venturi tube 20 through which exhaust gas flows into one end of the duct 30 connected to the main body case 10 is connected; A water tank 40 for supplying water to the lower body case 10 is connected; A cleaning tower 1 connected to the water tank 40 by having at least one nozzle tube 50 crossing the inside of the body case 10 at a predetermined height; The exhaust gas introduced into the main body case 10 through the venturi tube 20 is purified by water injected from the nozzle tube 50, and the water dropped to the lower part of the main body case 10 is transferred to the water tank 40. It is introduced and circulated while being supplied to the nozzle pipe (50); This washing tower 1 is made of FRP, Washing tower made of FRP which is characterized by excellent corrosion resistance and heat resistance. The method of claim 9, The washing tower 1, Forming a manhole (60) which is accessible from the lower side of each nozzle tube (50) of the body case (10); By providing the support plate 70 to the inner surface of the main body case 10 below the manhole 60, Washing tower made of LFRP, characterized in that easy repair, maintenance and management.

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