KR102577318B1 - method for manufacturing plaster hydration retarder base on plant protein and the plaster hydration retarder - Google Patents

Abstract

The present invention relates to a method for producing a gypsum hydration reaction retardant based on vegetable protein and a gypsum hydration reaction retardant produced thereby. The method for producing a gypsum hydration reaction retardant includes processing plants to produce a gypsum hydration reaction retardant in powder form. A step of extracting protein (S1); Obtaining fibril granules made of cellulose from wood or non-wood materials (S2); Obtaining inorganic or non-combustible ash (S4); It is characterized by comprising a step (S5) of stirring and mixing the vegetable protein, fibril granules, and ash obtained in steps (S1), (S2), and (S4).

Description

Method for manufacturing plaster hydration retarder based on plant protein and plaster hydration retarder manufactured thereby {method for manufacturing plaster hydration retarder base on plant protein and the plaster hydration retarder}

The present invention relates to a method for producing a gypsum hydration reaction retardant based on vegetable protein and a gypsum hydration reaction retardant produced thereby, and more specifically, to a gypsum hydration reaction retardant that is mixed with gypsum to delay the setting time due to the hydration reaction, The present invention relates to a method for producing a gypsum hydration retardant based on vegetable protein, which can enhance the strength of hydrated gypsum, and a gypsum hydration retardant manufactured thereby.

The gypsum industry has continued to grow over the past 100 years and has been widely used throughout construction and everyday life over the past several decades. In particular, in the construction field, gypsum has excellent economic efficiency and lightness, so it is used in a wide range of areas, such as being used in the form of boards or bonds.

Gypsum is used as a construction material in various fields. For example, gypsum board, which is made of gypsum in the form of a plate-like board, is used as a finishing material for houses or public buildings and as a fireproofing material. It has sound absorbing properties, so it absorbs sound (sound absorption). It is also used as a sound board. In this gypsum board, plaster, dispersant, hardener, foaming agent, etc. are stirred with water, and the stirred gypsum raw material is discharged to the board frame and transported to harden into a board shape, and paper is attached to the back of the transported board. It is completed.

However, since gypsum has the property of hardening through a hydration reaction in just a few minutes when combined with water, a hydration reaction retardant is added during the manufacturing of the board to block the reaction between the hydrated gypsum and water and prevent rapid hardening. I'm doing it.

These hydration reaction retardants include animal proteins, which are manufactured by dissolving cow horns, cow claws, and pig claws as raw materials in an alkaline solution and boiling them in a bath.

However, cow horns, cow claws, and pig claws are difficult to obtain due to low demand, and their prices are relatively high. In particular, when dissolving alkali and bain-boiling, a foul odor and waste are generated, contaminating the surrounding area, and because the raw materials are dead skin cells, the dissolution and bain-boiling time is usually long. There is a problem in that it takes more than 36 hours and consumes a lot of heat energy, making it uneconomical.

The present invention was created to solve the above problems, and delays the hydration reaction of gypsum using vegetable protein, which can reduce environmental pollution, enable consistent quality, and secure economic efficiency. The purpose is to provide a manufacturing method and a gypsum hydration reaction retardant manufactured thereby.

Another object of the present invention is to provide a method for producing a gypsum hydration reaction retardant based on vegetable protein, which can improve the durability of gypsum products hardened by hydration reaction, and a gypsum hydration reaction retardant manufactured thereby. .

In order to achieve the above object, the method for producing a gypsum hydration reaction retardant based on vegetable protein according to the present invention is a method of manufacturing a gypsum hydration reaction retardant that is added to gypsum powder to delay the hydration reaction, Processing plants to extract plant protein in powder form (S1); Obtaining fibril granules made of cellulose from wood or non-wood materials (S2); Obtaining inorganic or non-combustible ash (S4); and a step (S5) of stirring and mixing the vegetable protein, fibril granules, and ash obtained in steps (S1), (S2), and (S4).

In the present invention, 100 parts by weight of vegetable protein includes 30 to 80 parts by weight of cellulose and 5 to 15 parts by weight of ash.

In the present invention, a step (S3) of three-dimensionally modifying the shape of the fibril granule is further included.

In the present invention, the step (S3) includes a preheating step (S3-1) of preheating the fibril granules to a first temperature (H1), and the fibril granules preheated to the first temperature (H1) are in the form of A heating step (S3-2) of heating to a second temperature (H2) to bend and deform, and a third temperature (H3) to fix the deformed shape of the fibril granule heated to the second temperature (H2). It includes a cooling step (S3-3) of cooling.

In the present invention, the preheating step (S3-1) is a step of preheating the fibril granule to a range of 60 to 100° C., and the heating step (S3-2) is a step of preheating the fibril granule to the first temperature (H1). This is a step of heating the fibril granules to a range of 150 to 350°C, and the cooling step (S3-3) is a step of rapidly cooling the fibril granules heated to the second temperature (H2) to a range of 0 to 30°C.

In the present invention, the step (S3) includes a storage tank (10) in which the fibril granules obtained in the step (S2) are stored; A heater (20) that heats air to the first temperature (H1) and blows it; an air transfer pipe (30) through which air heated by the heater (20) is transferred; a granule supply unit 40 that supplies the fibril granules stored in the storage tank 10 with air transferred to the air transfer pipe 30; a granule heating unit 50 that heats the fibril granules heated to the first temperature H1 transferred through the air transfer pipe 30 to the second temperature H2; a granule cooling unit 60 that cools the fibril granules heated to a second temperature (H2) in the granule heating unit 50 to a third temperature (H3); a granule classification unit 70 for classifying fibril granules from the air passing through the granule cooling unit 60; It is performed by a shape deformation device including a granule collection container (80) that collects the fibril granules classified in the granule classification unit (70).

In the present invention, the granule supply unit 40 includes a valve 41 installed at the bottom outlet of the hopper of the storage tank 10 to open and close the passage, and a direction in which air is transferred to the side of the air transfer pipe 30. An input inclined groove 42, which is formed obliquely, into which the fibril granules passing through the valve 41 are introduced, and a cap installed on the side of the air transfer pipe 30 so that the input inclined groove 42 is embedded ( 43) and a connection pipe 44 connecting the valve 41 and the cap 43.

In the present invention, the granule heating unit 50 is connected to the air transfer pipe 30 and includes a first coil tube assembly 51 implemented by winding the pipe in a coil shape, and the first coil tube assembly 51. ) a heating box 52 built to surround the heating box 52, a first inlet 53 installed on one side of the heating box 52 through which a heat medium of a second temperature (H2) higher than the first temperature (H1) flows; , Installed on the other side of the heating box 52, it includes a first outlet 54 through which the heating medium is discharged in an amount equal to the inflow, and the granule cooling unit 60 is connected to the first coil tube assembly 51. A second coil tube assembly (61) implemented by winding a pipe tube in a coil shape, and a cooling box (62) built to surround the second coil tube assembly (61). A second inlet 63 installed on one side of the cooling box 62 through which refrigerant of a third temperature H3 lower than the second temperature H2 flows, and a second inlet 63 installed on the other side of the cooling box 62. It includes a second outlet 64 through which refrigerant is discharged equal to the amount introduced.

In order to achieve the above object, the gypsum hydration reaction retardant according to the present invention is characterized in that it is manufactured according to any one of claims 1 to 8.

As such, according to the present invention, since the gypsum hydration reaction retardant is manufactured based on vegetable protein, economical mass production is possible with consistent quality while reducing environmental pollution compared to retarders based on animal protein.

In addition, by including cellulose fibril granules in the gypsum hydration reaction retardant, the mechanical and tensile strength of the hydrate that is the result of the hydration reaction can be improved, and thus it is possible to create a hydrate that can withstand external shocks. .

In addition, the added ash allows vegetable proteins and fibril granules to be evenly mixed and at the same time delays the discharge of moisture absorbed by the fibril granules, thereby further delaying the hydration reaction of gypsum and thus improving workability. there is.

1 is a block diagram illustrating a method for manufacturing a gypsum hydration reaction retardant based on vegetable protein according to the present invention;
FIG. 2 is a block diagram illustrating the detailed configuration of step S3 of FIG. 1;
Figure 3 is a diagram for explaining the configuration of a shape deformation device that performs step S3 of Figure 2;
Figure 4 is a view showing an excerpt of the storage tank, heater, air transfer pipe, and granule supply part of Figure 3;
FIG. 5 is a diagram illustrating the configuration of the granule heating unit and granule cooling unit of FIG. 3;
Figure 6 is a diagram illustrating the configuration of the granule classification unit and granule collection container of Figure 3;
Figure 7 is an enlarged view of a fibril granule deformed to be three-dimensionally bent by the shape deformation device of Figure 3.

Hereinafter, the method for producing a gypsum hydration reaction retardant based on vegetable protein according to the present invention and the gypsum hydration reaction retardant produced thereby will be described with reference to the attached drawings.

Hereinafter, the term “above” or “above” may include not only what is directly above in contact but also what is above without contact. Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. Terms are used only to distinguish one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise. Additionally, when a part "includes" a certain component, this means that it may further include other components rather than excluding other components, unless specifically stated to the contrary. Additionally, terms such as "...unit" and "module" used in the specification refer to a unit that processes at least one function or operation. In cases where an embodiment can be implemented differently, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially at the same time, or may be performed in an order opposite to that in which they are described.

Figure 1 is a block diagram illustrating a method for manufacturing a gypsum hydration reaction retardant based on vegetable protein according to the present invention, and Figure 2 is a block diagram illustrating the detailed configuration of step S3 of Figure 1.

The gypsum hydration reaction retardant based on vegetable protein according to the present invention is mixed with gypsum powder to delay the hydration reaction and at the same time strengthen the strength of the hardened gypsum product. In order to manufacture this gypsum hydration reaction retardant, a step (S1) is first performed by processing the plant and extracting the plant protein in powder form.

Vegetable protein is typically obtained by processing and fermenting legumes with high nitrogen groups, such as soybeans, soybeans, kidney beans, and lentils. Vegetable protein is extracted using enzymes from legume raw materials at a low temperature of around 55℃, and no antibiotics, heavy metals, or chlorides that can be extracted from animal protein are detected in the vegetable protein. Since these vegetable proteins have significantly less environmental contaminants during the extraction process compared to existing animal proteins and can be mass-produced, the gypsum hydration reaction retardant of the present invention based on vegetable proteins maintains constant quality. It is economically possible to manufacture.

Vegetable protein is also used interchangeably with amino acid or modified amino acid, and refers to a polymer made of amino acid residues.

Amino acids are also those found in plant proteins, for example, glycine, alanine, valine, leucine, isoleucine, methionine, phenylalanine, tryptophan, proline, serine, threonine, cysteine, tyrosine, asparagine, glutamine, and aspartate. , glutamate, lysine, arginine, and histidine. In certain embodiments, the amino acid is in the L-configuration. As another example, amino acids include alanyl, valinyl, leucinyl, isoleucinyl, prolinyl, phenylalanyl, tryptophanyl, methioninyl, glycinyl, serinyl, threoninyl, cysteinyl, and tyrosinyl. Cynyl, asparaginyl, glutaminyl, aspartoyl, glutaroyl, lysinyl, argininyl, histidinyl, β-alanyl, β-valinyl, β-leucinyl, β-isoleucinyl , β-prolinyl, β-phenylalaninyl, β-tryptophanyl, β-methioninyl, β??glycinyl, β-serinyl, β-threoninyl, β-cysteinyl, May be a derivative of β-tyrosinyl, β-asparaginyl, β-glutaminyl, β-aspartoyl, β-glutaroyl, β-lysinyl, β-argininyl or β-histidinyl. Of course it exists.

Next, a step (S2) is performed to obtain fibril granules made of cellulose from wood or non-wood materials.

Step (S2) includes mechanically processing pulp from wood or non-wood materials to obtain pulp powder (S2-1), and extracting cellulose aggregates from the pulp powder (S2-2). Step (S2-3) of obtaining micro-sized fibrils by mechanically crushing the lump-shaped cellulose aggregate, and sieving the fibrils obtained in step (S2-3) to separate the fibrils from each other while having a certain particle size. It includes the step of obtaining granules (S2-4).

In step S2-1, the pulp includes at least one wood material from the wood group consisting of eucalyptus, spruce, pine, beech, palm, hemp, and bamboo; One or more non-wood materials consisting of cotton, cotton, hemp, flax, hemp, jute, manila hemp, hemp, sisal, and sugarcane; and obtained by mechanically processing a mixture of the wood material and non-wood material, and the particle size of the obtained pulp is in the range of 1 to 10 μm. At this time, there are various mechanical treatments, for example, grinding with a grinder.

Step (S2-2) can be performed in various ways, for example, a known method obtained by adding pulp powder to a solvent, preparing a stirred suspension, dehydrating and drying the suspension, or a powder phase obtained by pulverizing the pulp. It can be obtained by a known method, such as adding alkali to the pulp in the amount necessary for the etherification reaction and mechanically mixing it. In step S2-2, lignin is removed from the pulp powder and only cellulose remains, and the remaining cellulose is entangled with each other to form a lump-shaped aggregate.

Step (S2-3) is a step of mechanically crushing the lump-shaped cellulose aggregates to obtain micro-sized fibrils. Step (S2-3) is performed using a grinder, combinator, mixer, etc.

Step (S2-4) is a step of sieving the fibrils obtained in the fibril step (S2-3) into fibril granules having a certain particle size. The fibril granules obtained in this step (S2-4) have a wide aspect ratio of 0.1 to 5 μm and a length of several μm to tens of μm.

In this way, through steps (S2-1) to (S2-4), it is possible to obtain fibril granules with a large aspect ratio and a constant particle size from wood or non-wood.

These fibril granules have very high mechanical strength and a tensile modulus of elasticity of 100 to 160 Gpa, similar to that of steel or Kevola, so they can increase the mechanical strength as well as the tensile strength of the hydration reaction product described later. Furthermore, fibril granules have a large specific surface area and the property of absorbing moisture, thereby contributing to delaying the hydration reaction of gypsum, which will be described later.

Next, a step (S3) of three-dimensionally modifying the shape of the fibril granule is performed.

Step (S3) is a step of transforming the shape of the fibril granules, which are approximately linear, to have a three-dimensional bent shape, including a preheating step (S3-1) of preheating the fibril granules to the first temperature (H1), and Heating step (S3-2) of heating the fibril granules preheated to the first temperature (H1) to the second temperature (H2) so that the shape is bent and deformed, and deformation of the fibril granules heated to the second temperature (H2) It includes a cooling step (S3-3) of cooling to a third temperature (H3) to fix the formed shape.

At this time, the preheating step (S3-1) is a step of preheating the fibril granules to a range of 60 to 100°C, preferably 80°C, and the heating step (S3-2) is a step of preheating the fibril granules to the first temperature (H1). The step is to heat the fibril granules to a temperature in the range of 150 to 350°C, preferably to 250°C, and the cooling step (S3-3) is to heat the fibril granules heated to the second temperature (H2) to a temperature in the range of 0 to 30°C, preferably to 250°C. is the cooling step to 15℃.

Figure 3 is a diagram for explaining the configuration of the shape deformation device performing step (S3) of Figure 2, and Figure 4 is a diagram showing an excerpt of the storage tank, hot air blower, air transfer pipe, and granule supply unit of Figure 3. 5 is a drawing to explain the configuration by extracting the granule heating unit and granule cooling unit of FIG. 3, FIG. 6 is a drawing to explain the configuration by extracting the granule sorting unit and granule collection container of FIG. 3, and FIG. 7 is a drawing showing the configuration. This is an enlarged view of the fibril granule deformed to be three-dimensionally bent by the shape deformation device in 3.

The step (S3) of three-dimensionally deforming the micro-unit fibril granule is performed by the following shape deformation device.

The shape deformation device includes a storage tank (10) in which the fibril granules obtained in step (S2) are stored; A heater (20) that heats air to a first temperature (H1) and blows it; an air transfer pipe (30) through which air heated by the heater (20) is transferred; A granule supply unit 40 that supplies the fibril granules stored in the storage tank 10 with air transferred to the air transfer pipe 30; A granule heating unit 50 that heats the fibril granules heated to the first temperature H1 transferred through the air transfer pipe 30 to the second temperature H2; a granule cooling unit 60 that cools the fibril granules heated to a second temperature (H2) in the granule heating unit 50 to a third temperature (H3); a granule classification unit 70 for classifying fibril granules from air via the granule cooling unit 60; It includes a granule collection container (80) for collecting the fibril granules classified in the granule classification unit (70).

The storage tank 10 stores fibril granules of a certain particle size obtained in step S2. An inlet 11 through which fibril granules are introduced is formed at the upper side of the storage tank 10, and the lower side has a hopper-shaped bottom.

The outlet of the hot air blower (20) is connected to the air transfer pipe (30), and external air is heated to a first temperature (H1) in the range of 60 to 100°C and blown into the air transfer pipe (30).

The air transfer pipe 30 transfers the air blown from the heater 20 and the fibril granules supplied from the granule supply unit 40 to the granule heating unit 50, and in this process, the fibril granules are heated in the range of 60 to 100°C. It is preheated to the first temperature (H1).

As shown in FIG. 4, the granule supply unit 40 is installed at the bottom outlet of the hopper of the storage tank 10 to open and close the passage, and the direction in which air is transferred to the side of the air transfer pipe 30. An input inclined groove 42, which is formed obliquely, into which the fibril granules passing through the valve 41 are introduced, and a cap 43 installed on the side of the air transfer pipe 30 so that the input inclined groove 42 is embedded. , includes a connection pipe 44 connecting the valve 41 and the cap 43.

The input inclined groove 42 is formed on the side of the air transfer pipe 30 at an angle in the direction in which air is transferred. Accordingly, when the air blown by the heater 20 is transported through the air transfer pipe 30, negative pressure is formed inside the input inclined groove 42 and the cap 43 due to the Venturi phenomenon, and accordingly, the valve The fibril granules that have passed through (41) pass through the cap (43) and are then sucked into the air transfer pipe (30) through the input inclined groove (42).

If the input inclined groove 42 is not formed in the air transfer direction, a positive pressure is formed inside the cap 43, and in this case, the fibril granules passing through the valve 41 are transferred to the air transfer pipe 30 by the positive pressure. It does not flow smoothly into the system.

A preheating step (S3-1) is performed in which the fibril granules are preheated to a first temperature (H1) in the range of 60 to 100° C. by the heater 20, the air transfer pipe 30, and the granule supply unit 40. In this preheating step (S3-1), if the fibril granules are preheated below 60°C, they will not be sufficiently heated in the heating step (S3-2) to be described later, and if they are preheated to 100°C or higher, they will not be heated sufficiently in the heating step (S3-2) to be described later. In 2), excessive heating may result in carbonization that deforms the physical properties.

The granule heating unit 50 heats the fibril granules preheated to the first temperature (H1) transferred through air from the air transfer pipe 30 to a second temperature (H2) in the range of 150 to 350 ° C, preferably 250 ° C. As a place where the heating step (S3-2) for heating is performed, as shown in FIG. 5, the first coil pipe assembly 51 is connected to the air transfer pipe 30 and is implemented by winding the pipe pipe in a coil shape. , a heating box 52 built to surround the first coil tube assembly 51, and a heating medium installed on one side of the heating box 52 and into which a heat medium of a second temperature (H2) higher than the first temperature (H1) flows. It includes a first inlet 53 and a first outlet 54 installed on the other side of the heating box 52 through which heat medium is discharged in an amount equal to the amount introduced.

The first coil tube assembly 51 is implemented by winding a pipe multiple times in the form of a coil, and guides the fibril granules transported with air so that they can be transferred while changing direction. Accordingly, the fibril granules irregularly contact the inner peripheral surface of the first coil tube assembly 51 during the transfer process.

The heating box 52 forms a sealed space containing the first coil tube assembly 51 and a heat medium, and the built-in heat medium heats the entire first coil tube assembly 51.

The first inlet 53 allows heat medium heated to the second temperature (H2) to flow into the heating box 52, and the first outlet 54 allows the heat medium to flow into the first inlet 53 by the amount of the heat medium. The heat medium is discharged, and thus the heat medium inside the heating box 52 is always maintained at the second temperature (H2).

To explain this in more detail, the heat medium is heated to a second temperature (H2) in a heater (not shown) and then flows into the first inlet (53), then stays inside the heating box (52) and then passes through the first outlet (54). It forms a mechanism where it is discharged through and then circulated to the heater. Accordingly, even if the first coil tube assembly 51 loses thermal energy by the transported air, it can always maintain the state heated to the second temperature (H2) by the heat medium in the heating box 52.

Here, when the first coil tube assembly 51 is heated below 150°C, shape deformation does not occur in the transferred fibril granules, and when heated above 350°C, the transferred fibril granules may be carbonized and their physical properties may change.

By this granule heating unit 50, the fibril granules transported with air through the air transfer pipe 30 irregularly contact the inner peripheral surface of the first coil tube assembly 51 in the process. In this process, thermal energy is intensively applied to the contact area, thereby deforming the physical shape of the fibril granule, such as bending it into an irregular three-dimensional shape.

The granule cooling unit 60 performs a cooling step (S3-) for cooling the fibril granules heated to the second temperature (H2) transferred through the granule heating unit 50 to a third temperature (H3) of 0 to 30°C. As a place where 3) is performed, as shown in FIG. 5, a second coil tube assembly 61 connected to the first coil tube assembly 51 and implemented by winding the pipe tube in a coil shape, and a second coil tube A cooling box (62) built to surround the assembly (61). A second inlet 63 installed on one side of the cooling box 62 through which refrigerant of a third temperature H3 lower than the second temperature H2 flows, and a second inlet 63 installed on the other side of the cooling box 62 through which the refrigerant flows. It includes a second outlet 64 through which the refrigerant is discharged.

The second coil tube assembly 61 is implemented by winding the pipe multiple times in the form of a coil, and guides the fibril granules transported with air so that they can be transferred while changing direction. Accordingly, the fibril granules irregularly contact the inner peripheral surface of the second coil tube assembly 61 during the transfer process.

The cooling box 62 forms a sealed space containing the second coil tube assembly 61 and the refrigerant, and the built-in refrigerant cools the entire second coil tube assembly 61.

The second inlet 63 allows the refrigerant cooled to the third temperature (H2) to flow into the cooling box 62, and the second outlet 64 allows the amount of refrigerant to flow into the second inlet 63 when the refrigerant flows into the cooling box 62. The coolant is discharged as much as possible, and thus the heat medium inside the cooling box 62 is always maintained at the third temperature (H3).

To explain this in more detail, the refrigerant is cooled to the third temperature (H2) in a cooler (not shown) and then flows into the second inlet (63), then stays inside the cooling box (62) and flows through the second outlet (64). It forms a mechanism where it is discharged through and then circulated to the cooler. Accordingly, the second coil tube assembly 61 can always remain cooled to the third temperature (H3) by the refrigerant in the cooling box 62 even if the heat energy contained in the transported air is applied.

Here, if the second coil tube assembly 61 is cooled below 0°C, the possibility of destruction of the fibril granules heated to the second temperature (H2) increases due to excessive rapid cooling, and if it is above 30°C, the second temperature (H2) increases. ), the fibril granules transferred may not maintain their deformed shape and may be in a pre-heated state.

By this granule cooling unit 60, the fibril granules transported by air after passing through the granule cooling unit 60 are on the inner peripheral surface of the second coil tube assembly in the process of passing through the second coil tube assembly 61. It cools on contact, allowing the irregular shape of the fibril granules to solidify.

The granule classification unit 70 classifies fibril granules from the air passing through the granule cooling unit 60, and as shown in FIG. 6, the inflow pipe 72 is connected to the second coil tube assembly 61. ) is formed in the collection box 71, the discharge pipe 73 formed in the collection box 71 at right angles to the inlet pipe 72, and the inflow pipe 72 and the discharge pipe 73 installed in the collection box 71. ) includes an elbow mesh net (74) surrounding the.

The collection box 71 arranges the inlet pipe 72 and the discharge pipe 73 at right angles.

The elbow mesh net 74 is fixed to the collection box 71 to surround the inlet pipe 72 and the discharge pipe 73, and has a structure with a gently curved surface formed between the inlet pipe 72 and the discharge pipe 73. have

Due to this structure, the air and fibril granules flowing into the inflow pipe 72 after passing through the second coil pipe assembly 62 go straight to the curved surface of the elbow mesh network 74 by inertia, and then the air flows It is discharged to the outside through the elbow mesh network 74, and the fibril granules collide with the curved surface and fall toward the discharge pipe 73, thereby separating the air and fibril granules.

As shown in FIG. 6, the granule collection container 80 collects the fibril granules that fall after being classified in the granule classification unit 70. A removable fitting pipe 81 that is attached to and detached from the discharge pipe 73 is formed on the upper part of the granule collection container 80.

By a shape-transforming device like this. The fibril granules supplied from the storage tank 10 are allowed to quickly proceed through the preheating step (S3-1), heating step (S3-2), and cooling step (S3-3) sequentially, and through this process, As shown in Figure 7, fibril granules having a three-dimensional curved shape can be produced in large quantities without being carbonized or changing physical properties.

Next, the step (S4) of obtaining inorganic or non-combustible ash is performed.

The ash in step (S4) is implemented by burning wood or coal, allowing the vegetable protein and fibril granules to be evenly mixed, and at the same time delaying the discharge of moisture absorbed by the fibril granules, thereby promoting the hydration reaction of the gypsum. It can be delayed further.

Next, a step (S4) of stirring and mixing the vegetable protein, fibril granules, and ash obtained in steps (S1), (S2), and (S4) is performed.

In step (S4), 100 parts by weight of vegetable protein is mixed with 30 to 80 parts by weight of fibril granules, preferably 50 parts by weight, and 5 to 15 parts by weight of ash, preferably 10 parts by weight.

Through this series of steps (S1) to (S4), a gypsum hydration reaction retarder mixed with 100 parts by weight of vegetable protein, 30 to 80 parts by weight of fibril granules, and 5 to 15 parts by weight of ash is completed. The hydration reaction retardant prepared in this way can be appropriately contained in the gypsum powder to delay the hydration reaction and at the same time strengthen the mechanical and tensile strength of the resulting hydrate.

As such, according to the present invention, since the gypsum hydration reaction retardant is manufactured based on vegetable protein, economical mass production is possible with consistent quality while reducing environmental pollution compared to retarders based on animal protein.

In addition, by including cellulose fibril granules in the gypsum hydration reaction retardant, the mechanical and tensile strength of the hydrate that is the result of the hydration reaction can be improved, and thus it is possible to create a hydrate that can withstand external shocks. .

In addition, the added ash allows vegetable proteins and fibril granules to be evenly mixed and at the same time delays the discharge of moisture absorbed by the fibril granules, thereby further delaying the hydration reaction of gypsum and thus improving workability. there is.

The present invention has been described with reference to the above-described embodiment, but this is merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom.

10...storage tank 20...heater
30 ... air transfer pipe 40 ... granule supply unit
41 ... valve 42 ... input inclined groove
43 ... cap 44 ... connector
50 ... granule heating unit 51 ... first coil tube assembly
52 ... heating box 53 ... first inlet
54 ... first outlet 60 ... granule cooling unit
61 ... second coil tube assembly 62 ... cooling box
63 ... second inlet 64 ... second outlet
70 ... Granule sorting section 71 ... Collection box
72 ... inlet pipe 73 ... outlet pipe
74 ... Elbow mesh net 80 ... Granule collection container

Claims (9)

In the method of producing a gypsum hydration reaction retardant that is added to gypsum powder to delay the hydration reaction,
Processing legume raw materials to extract powdered vegetable protein (S1);
Obtaining fibril granules made of cellulose from wood or non-wood materials (S2);
Step (S3) of three-dimensionally modifying the shape of the fibril granule;
Obtaining inorganic or non-combustible ash (S4); and
A step (S5) of stirring and mixing the vegetable protein, fibril granules, and ash obtained in the steps (S1), (S2), and (S4),
The step (S3) includes a preheating step (S3-1) of preheating the fibril granules to a first temperature (H1), and a preheating step (S3-1) of preheating the fibril granules to the first temperature (H1) so that the shape is bent and deformed. A heating step (S3-2) of heating to a second temperature (H2) and a cooling step of cooling to a third temperature (H3) to fix the deformed shape of the fibril granule heated to the second temperature (H2). Contains (S3-3),
The preheating step (S3-1) is a step of preheating the fibril granules to a range of 60 to 100° C., and the heating step (S3-2) is a step of preheating the fibril granules preheated to the first temperature (H1) to 150° C. It is a step of heating to a range of ~350°C, and the cooling step (S3-3) is a step of rapidly cooling the fibril granules heated to the second temperature (H2) to a range of 0 to 30°C,
The step (S3) includes a storage tank (10) in which the fibril granules obtained in step (S2) are stored, a heater (20) for heating and blowing air to the first temperature (H1), and the heater ( 20) an air transfer pipe 30 through which heated air is transferred, a granule supply unit 40 that supplies fibril granules stored in the storage tank 10 with air transferred to the air transfer pipe 30, and the air transfer pipe. A granule heating unit 50 that heats the fibril granules heated to the first temperature (H1) transported through (30) to a second temperature (H2), and a second temperature (H2) in the granule heating unit (50) ), a granule cooling unit 60 that cools the fibril granules heated to a third temperature (H3), and an elbow through which air is exhausted to the outside to separate the fibril granules from the air passing through the granule cooling unit 60. A granule classification unit 70 including a mesh network 74 and a discharge pipe 73 through which fibril granules fall after colliding with the elbow mesh network 74, and fibrils classified in the granule classification unit 70 It is performed by a shape deformation device including a granule collection container 80 for collecting granules,
The granule supply unit 40 includes a valve 41 installed at the bottom outlet of the hopper of the storage tank 10 to open and close the passage, and a side of the air transfer pipe 30 formed at an angle in the direction in which air is transferred. An input inclined groove 42 into which the fibril granules passing through the valve 41 are introduced, a cap 43 installed on the side of the air transfer pipe 30 so that the input inclined groove 42 is embedded, and A method for producing a gypsum hydration reaction retardant based on vegetable protein, comprising a connection pipe (44) connecting the valve (41) and the cap (43). According to paragraph 1,
A method for producing a gypsum hydration reaction retardant based on vegetable protein, comprising 100 parts by weight of vegetable protein, 30 to 80 parts by weight of cellulose, and 5 to 15 parts by weight of ash. delete delete delete delete delete According to paragraph 1,
The granule heating unit 50 is connected to the air transfer pipe 30 and includes a first coil tube assembly 51 implemented by winding the pipe in the form of a coil, and a built-in unit surrounding the first coil tube assembly 51. A heating box 52, a first inlet 53 installed on one side of the heating box 52 through which a heat medium of a second temperature (H2) higher than the first temperature (H1) flows, and the heating box ( It is installed on the other side of 52) and includes a first outlet 54 through which heat medium is discharged in an amount equal to the inflow,
The granule cooling unit 60 is connected to the first coil tube assembly 51 and includes a second coil tube assembly 61 implemented by winding a pipe tube in a coil shape, and the second coil tube assembly 61. A cooling box (62) built into the surrounding area. A second inlet 63 installed on one side of the cooling box 62 through which refrigerant of a third temperature H3 lower than the second temperature H2 flows, and a second inlet 63 installed on the other side of the cooling box 62. A method for producing a gypsum hydration reaction retardant based on vegetable protein, comprising a second outlet (64) through which coolant is discharged in an amount equal to the amount introduced. A method for producing a gypsum hydration reaction retardant, characterized in that it is manufactured according to any one of claims 1, 2, and 8.

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