Glass fiber reinforced plastic circulating tank manufacturing method, circulating tank and resin mud glue

Abstract

The invention provides a glass fiber reinforced plastic circulating tank manufacturing method which comprises the following steps: S1, tank base treatment: sequentially paving a glass fiber reinforced plastic lamination layer, a resin mortar layer and a glass fiber reinforced plastic lamination layer on the hard ground surface from bottom to top; s2, manufacturing a groove wall, overlapping a framework along the edge of the groove base, fully pasting glass fiber reinforced plastic plates on the inner wall of the framework, and filling a gap between the adjacent glass fiber reinforced plastic plates and a gap between the glass fiber reinforced plastic plates and the groove base with resin mortar; s3, carrying out lamination treatment; s4, stand column construction; s5, mounting a groove top plate, mounting the prefabricated groove top plate at the top of the groove wall so as to seal the whole groove wall, and filling a gap between the groove top plate and the groove wall with resin mortar again; s6, cell top plate lamination; s7, constructing rib plates in the groove; the glass fiber reinforced plastic circulating tank is integrally manufactured and processed on site, an integral seamless splicing structure is achieved, the number of leakage control points is small, the compact effect is good, the quality of the circulating tank is guaranteed to the maximum extent, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circulating tank, more particularly, to a glass fiber reinforced plastic circulating tank manufacturing method, a circulating tank and a resin mortar. BACKGROUND

[0002] The glass fiber reinforced plastic circulating tank is a storage tank or container made of glass fiber reinforced plastic. Due to its excellent corrosion resistance, light weight and design flexibility, the glass fiber reinforced plastic circulating tank has been widely used in industrial and commercial fields.

[0003] At present, the large glass fiber reinforced plastic circulating tank (volume is more than 50 m3) is manufactured by assembling structure. The strength is achieved by the outer wrapping glass steel as reinforcing rib of the built-in carbon steel square tube, and then the large glass fiber reinforced plastic circulating tank is manufactured by assembling and combining multiple outer surfaces. The large glass fiber reinforced plastic circulating tank generally contains corrosive medium, and is prone to leakage. If leakage occurs at a certain position, the tank will lose strength and deform, affecting the service life.

[0004] APPLICATION CONTENT

[0005] In view of the problems in the prior art, the purpose of the present application is to provide a glass fiber reinforced plastic circulating tank manufacturing method, a circulating tank and a resin mortar.

[0006] To solve the above problems, the technical scheme adopted by the present application is as follows.

[0007] In a first aspect, the present application provides a glass fiber reinforced plastic circulating tank manufacturing method, and the steps are as follows:

[0008] S1, tank base treatment, glass fiber reinforced plastic laminates, resin mortar layer and glass fiber reinforced plastic laminates are sequentially laid on the hard surface from bottom to top;

[0009] S2, tank wall manufacturing, the framework is overlapped along the edge of the tank base, the glass steel plate is pasted on the inner wall of the framework, and the resin mortar is filled in the gap between the adjacent glass steel plates and the gap between the glass steel plate and the tank base;

[0010] S3, laminate treatment, glass fiber reinforced plastic laminates are treated on both sides of the tank wall and the surface of the tank base and covered with resin mortar;

[0011] S4, column construction, a plurality of vertically arranged columns are installed on the tank base;

[0012] S5, tank top plate installation, the prefabricated tank top plate is installed on the top of the tank wall to cover the entire tank wall, and the resin mortar is filled again in the gap between the tank top plate and the tank wall;

[0013] S6, tank top plate laminating, glass fiber reinforced plastic laminates are laminated on one side of the tank top plate close to the tank wall and covered with resin mortar;

[0014] S7, the inner rib plate construction, connecting the inner rib plate between the column and the tank wall;

[0015] The technical scheme provided by the first aspect has at least the following technical effects:

[0016] (1) The glass steel circulating tank is integrally manufactured on site, achieving a seamless joint structure, fewer leakage control points, and excellent compactness, thereby maximizing the quality of the circulating tank and prolonging the service life.

[0017] (2) The combination of the outer framework structure and the inner rib plate structure of the tank enhances the tank and solves the problem of leakage at the joint, eliminating the deformation and instability of the tank caused by corrosion of the carbon steel reinforcing rib.

[0018] (3) All gaps and internal corner gaps of the glass steel circulating tank are filled with special resin mortar, and a glass steel laminate structure is formed on the surface of the resin mortar, thereby enhancing the integrity of the tank and greatly improving the durability of the tank.

[0019] (4) The glass steel circulating tank is integrally manufactured on site, which is simple and convenient, suitable for manufacturing in various production environments, reduces transportation costs, and has a stable and beautiful overall structure.

[0020] The second aspect of the application provides a glass steel circulating tank, which is made by a glass steel circulating tank manufacturing method. The structure of the glass steel tank has at least the following effects:

[0021] (1) The structure of the framework covered with glass steel plate greatly enhances the stability of the tank wall.

[0022] (2) The inner tank is supported by the column as the main support, and the inner rib plate is connected to the tank wall as a support plate, which greatly enhances the stability of the internal structure of the tank.

[0023] (3) The tank wall, tank base, tank top plate and inner rib plate structure are combined and laminated inside and outside to form a network-like overall structure with excellent stability and performance.

[0024] The third aspect of the application provides a resin mortar, which comprises the following components in the following weight percentages based on the total weight of the resin mortar being 100%:

[0025] Vinyl resin 10-20%, quartz sand 45-60%, talcum powder 10-15%, aluminum hydroxide 10-15%, glass fiber powder 3-5%, accelerator 1-3%, curing agent 1-3%, coupling agent 1-3%, defoaming agent 1-3%, low shrinkage agent 1-3%.

[0026] In a third aspect, the technical scheme provided by the application has at least the following technical effects:

[0027] (1) The resin mortar base resin uses vinyl resin, which has good corrosion resistance.

[0028] (2) The use of 1-3% coupling agent can improve the bonding force of various mixed materials. The use of 1-3% low shrinkage agent can reduce the volume shrinkage rate of these composite materials during curing or cooling. The use of 1-3% defoaming agent can eliminate or inhibit the foam generated during the production of these composite materials, thereby improving the density and strength. The use of 10-15% aluminum hydroxide can have a flame-retardant effect. After the overall cooperation, the bonding strength is high, the anti-washing performance is good, the cracking, delamination or peeling is reduced, and the flame-retardant effect is achieved.

[0029] (5) The use of 10-15% talc powder can increase the overall fluidity, facilitate the filling of gaps, and cooperate with 1-3% curing agent and 1-3% accelerator to accelerate the curing of the resin mortar and improve the curing effect, while improving the hardness, strength and durability.

[0030] (6) The use of 3-5% glass fiber powder provides application for waste glass steel treatment, enhances the strength after curing, and plays an environmental protection role. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Fig. 1 The figure is a schematic diagram of the circulating tank structure of the present application;

[0033] Fig. 2 The figure is a schematic diagram of the internal structure of the circulating tank of the present application.

[0034] Explanation of figure numbers:

[0035] 1, tank base; 2, tank wall; 21, framework; 22, glass steel plate; 3, stand column; 4, inner rib plate of tank; 41, flow-through hole; 5, tank top plate; 6, flange. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear and obvious, the following will further describe the present application with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0037] In this application, the term "and / or", describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. Wherein A and B can be singular or plural. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0038] In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can represent a, b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, wherein a, b, and c can be single or multiple.

[0039] It should be understood that the size of the sequence number of the above-mentioned processes in various embodiments of the present application does not mean the order of execution, and part or all of the steps can be executed in parallel or in sequence. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0040] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0041] The weight of the related components mentioned in the specification of the embodiments of the present application can not only refer to the specific content of each component, but also represent the weight ratio relationship between each component. Therefore, as long as the content of the related components in the specification of the embodiments of the present application is enlarged or reduced in proportion, it is within the scope disclosed in the specification of the embodiments of the present application. Specifically, the mass mentioned in the specification of the embodiments of the present application can be μg, mg, g, kg and other mass units commonly known in the chemical field.

[0042] The terms "first", "second" are only used for description purposes, to distinguish objects such as substances from each other, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. For example, without departing from the scope of the embodiments of the present application, the first XX can also be called the second XX, and similarly, the second XX can also be called the first XX. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0043] Currently, the manufacturing and processing of large-scale FRP (fiberglass reinforced plastic) circulating tanks (with a volume of 50m³ or more) in China all adopt an assembly structure. Their strength relies on internal carbon steel square tubes wrapped with FRP as reinforcing ribs, and is then assembled from multiple external facades. Large FRP circulating tanks typically hold corrosive media, making them prone to leakage. If leakage occurs in any part, the tank will lose strength and deform, affecting its service life.

[0044] Based on this, in order to improve the problems of instability, low strength and easy penetration of the assembled structure in the prior art, the embodiments of this application provide the following technical solutions.

[0045] The first aspect of this application provides a method for manufacturing a fiberglass circulating tank, the steps of which are as follows:

[0046] S1. Treatment of the trench base 1: On a hard surface, fiberglass laminate, resin mortar layer, and fiberglass laminate are laid sequentially from bottom to top.

[0047] S2. The construction of the tank wall 2 involves attaching the frame 21 along the edge of the tank base 1, covering the inner wall of the frame 21 with fiberglass plates 22, and filling the gaps between adjacent fiberglass plates 22 and the gaps between the fiberglass plates 22 and the tank base 1 with resin putty.

[0048] S3. Lamination treatment: Apply fiberglass lamination treatment to both sides of the tank wall 2 and the surface of the tank base 1 and cover it with resin mud.

[0049] S4. Construction of column 3: Install several spaced columns 3 vertically on the trench base 1.

[0050] S5. Install the top plate 5 of the tank. Install the prefabricated top plate 5 on the top of the tank wall 2 to cover the entire tank wall 2. Fill the gap between the top plate 5 and the tank wall 2 with resin putty again.

[0051] S6. The top plate 5 is laminated with fiberglass and covered with resin putty on the side of the top plate 5 near the tank wall 2.

[0052] S7. Construction of the inner reinforcement plate 4: Connect the inner reinforcement plate 4 between the column 3 and the trench wall 2.

[0053] It can be understood that the hard ground surface can be a concrete base surface, i.e. a concrete base surface, an asphalt surface, a stone surface, a ceramic tile surface, a brick surface, etc. Glass fiber reinforced plastic (GFRP) is a composite material structure formed by combining multiple layers of glass fibers with a resin matrix. The general steps are as follows: surface preparation, first clean and prepare the surface of the tank base 1 to ensure that there is no dust, grease or other impurities so that the resin can adhere well; material selection, select appropriate resin (such as unsaturated polyester resin, epoxy resin, etc.) and glass fiber material (such as yarn, cloth, felt, etc.) according to application requirements; resin preparation, prepare the resin according to the instructions, which may require the addition of curing agents, accelerators, etc. to control the curing time and performance; layering, lay glass fiber material on the tank base 1 layer by layer, after each layer of fiber is laid, apply a layer of resin to ensure that the fiber is fully saturated, this process can be repeated multiple times until the desired thickness and structural strength is achieved; compaction and debubbling, use rollers or vacuum bags to remove air bubbles in the resin to ensure that the fiber and resin are in close contact, enhancing the density and strength of the finished product; curing, place the laid-up laminate in appropriate temperature and humidity conditions to allow the resin to cure. Resin mortar layer is a high-performance material layer formed by mixing resin, usually epoxy resin, polyurethane resin, etc. with finely selected fine aggregate such as quartz sand, silica sand, etc. and an appropriate amount of filler, pigment, curing agent, etc. Skeleton 21 is a frame structure that supports the overall structure of the circulating tank, which can be directly connected using steel bars, steel plates, or other structures such as reinforced concrete. According to the needs, frame structures of various shapes such as frame, circle, polygon, etc. can be connected. After the glass steel plate 22 is spliced, there will be gaps between adjacent glass steel and corners, which can be filled with resin mortar. Resin mortar is a high-performance adhesive and repair material formed by mixing resin, usually epoxy resin, polyurethane resin, unsaturated polyester resin, etc. with curing agents, fine aggregate such as quartz sand, silica powder, etc. and fillers, diluents, etc. The column 3 and the inner rib plate 4 in the tank can be made of glass steel material, or other materials such as steel, stone, concrete, etc. and then treated with glass steel laminate on the surface to achieve corrosion resistance.

[0054] In this way, the glass steel laminate itself has strong corrosion resistance and strong structural strength, and the use of resin mortar with adhesive and corrosion resistance can greatly improve the structural strength and corrosion resistance of the tank base 1. The use of skeleton 21 in combination with the structure of glass steel plate 22, the connection of column 3 to tank wall 2 through inner rib plate 4 in the tank further improves the structural strength of the circulating tank. The resin mortar can fill the gaps to ensure the overall sealing, and the surface of the tank wall 2, the tank base 1 and the resin mortar can be treated with glass steel laminate to enhance the overall integrity and corrosion resistance of the integrated manufacturing and processing of the circulating tank.

[0055] In some embodiments, after the step S3 of the lamination treatment, a through hole is formed on the tank wall 2, and the flange 6 is installed in the through hole; after the step S6 of the lamination of the tank top plate 5, a through hole is formed on the tank top plate 5, and the flange 6 is installed in the through hole.

[0056] It can be understood that the through hole can be formed after the installation of the tank wall 2 and the tank top plate 5, or the through hole can be formed in advance, that is, the through hole is formed on the glass fiber reinforced plastic plate 22 before the glass fiber reinforced plastic plate 22 is laid. When the flange 6 is installed, there will be a gap between the flange 6 and the through hole. In this case, the gap can be filled with resin mud, and then the surface of the glass fiber reinforced plastic lamination can be treated to seal and prevent corrosion.

[0057] In this way, by installing the flange 6, the circulating tank can be connected to external equipment or pipelines. The flange 6 provides a convenient and quick assembly and disassembly method. Without the need to make large-scale changes to the entire tank or pipeline system, the system can be maintained, inspected, or replaced with parts, improving the flexibility and maintenance efficiency of the system.

[0058] In some embodiments, in the step S3, the inner and outer surfaces of the tank wall 2 and the surface of the tank base 1 are subjected to corrosion-resistant inner and outer lining treatment after the lamination treatment; in the step S7, the inner and outer surfaces of the tank top plate 5 are subjected to corrosion-resistant inner and outer lining treatment after the lamination of the tank top plate 5.

[0059] It can be understood that the inner and outer lining treatment is to coat a layer of protective material on the surface after lamination. The protective material of the inner and outer lining can be polytetrafluoroethylene, polyethylene, polypropylene, polyvinyl chloride, polyvinylidene fluoride, epoxy resin paint, polyurethane paint, etc.

[0060] In this way, after the inner and outer lining is completed, the tank wall 2, the tank base 1, and the tank top plate 5 form a net-like superimposed whole after the glass fiber reinforced plastic lamination and the inner and outer lining treatment, which is stable in structure and has good corrosion resistance.

[0061] In some embodiments, the prefabricated tank top plate 5 is composed of a framework 21 and a glass fiber reinforced plastic plate 22 installed on the framework 21. When installed, the tank top plate 5 has the glass fiber reinforced plastic plate 22 facing downward and covering the tank wall 2.

[0062] It can be understood that the tank top plate 5 and the tank wall 2 are both composed of a framework 21 and a glass fiber reinforced plastic plate 22. The framework 21 is built by cross-laid steel plates. The cross-laid steel plates form a net-like structure by cross-lapping. The cross-lapping can be direct welding or embedded combination structure, and then welding. The cross-laid shape can be cross-laid vertically, or can be triangular with additional reinforcing ribs based on the cross-laid shape.

[0063] Thus, the combination of the framework 21 and the glass steel plate 22 can enhance the overall structural strength.

[0064] In some embodiments, the column 3 and the inner rib plate 4 are made of glass steel, and the outer surface is further treated by glass steel lamination; and the vertical section of the inner rib plate 4 is H-shaped, and the inner rib plate 4 is provided with a flow hole 41.

[0065] It can be understood that the column 3 and the inner rib plate 4 are both inside the circulating tank and need to be in contact with the electrolyte, so they not only need to have strong structural strength, but also need to have good corrosion resistance. Therefore, glass steel is used as the main structure, and further treated by glass steel lamination. For the installation of the column 3 and the inner rib plate 4, the anti-corrosion adhesive can be used for bonding first, and then the glass steel lamination is performed to fix the positions of the column 3 and the inner rib plate 4. The flow hole 41 is used to enhance the flowability of the electrolyte inside the circulating tank.

[0066] Thus, the column 3 serves as the main support for the tank top plate 5, and the inner rib plate 4 connects the column 3 and the tank wall 2 to enhance the structural strength inside the circulating tank. In addition, the inner rib plate 4 has good corrosion resistance. The upper and lower ends of the H-shaped inner rib plate 4 can provide structural strength to the plate surface of the inner rib plate 4, thereby improving the impact resistance of the electrolyte to the inner rib plate 4.

[0067] The second aspect of the present application provides a glass steel circulating tank, which is made by the above-mentioned method for making a glass steel circulating tank. Figs. 1-2 The tank base 1 is further provided with a plurality of columns 3 for supporting the tank top plate 5, and the inner rib plate 4 is connected between the column 3 and the tank wall 2, and the inner rib plate 4 is provided with a flow hole 41. The tank wall 2 is composed of a framework 21 and a glass steel plate 22.

[0068] The third aspect of the present application provides a resin mortar, which comprises the following components in the following weight percentages, based on the total weight of the resin mortar being 100%:

[0069] Vinyl resin 10-20%, quartz sand 45-60%, talcum powder 10-15%, aluminum hydroxide 10-15%, glass fiber powder 3-5%, accelerator 1-3%, curing agent 1-3%, coupling agent 1-3%, defoaming agent 1-3%, low shrinkage agent 1-3%.

[0070] It can be understood that in the resin mortar, the preparation raw materials are as follows in terms of weight percentage: vinyl resin 10-20%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%; quartz sand 45-60%, such as 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%; talcum powder 10-15%, such as 10%, 11%, 12%, 13%, 14%, 15%; aluminum hydroxide 10-15%, such as 10%, 11%, 12%, 13%, 14%, 15%; glass fiber powder 3-5%, such as 3%, 3.5%, 4%, 4.5%, 5%; accelerator 1-3%, such as 1%, 1.5%, 2%, 2.5%, 3%; curing agent 1-3%, such as 1%, 1.5%, 2%, 2.5%, 3%; coupling agent 1-3%, such as 1%, 1.5%, 2%, 2.5%, 3%; defoaming agent 1-3%, such as 1%, 1.5%, 2%, 2.5%, 3%; low shrinkage agent 1-3%, such as 1%, 1.5%, 2%, 2.5%, 3%.

[0071] In some embodiments, the particle size of the quartz sand is 45-52 mesh, such as 45 mesh, 46 mesh, 47 mesh, 48 mesh, 49 mesh, 50 mesh, 51 mesh, 52 mesh.

[0072] In some embodiments, the SiO2 content of the quartz sand is ≥70%, the acid resistance is ≥95%, and the water content is ≤0.2%. For example, the SiO2 content of the quartz sand is 70%, 71%, 72%, 75%, 80%, 85%, 90%, etc. The acid resistance is ≥95%, such as 95%, 96%, 97%, 98%, 99%, etc. The water content is ≤0.2%, such as 0.2%, 0.15%, 0.1%, 0.05%, etc.

[0073] In the process of making the resin mortar, the prepared raw materials are mixed and stirred.

[0074] Example 1

[0075] A resin mortar, based on 100% of the total weight of the resin mortar, includes the following components in the following weight percentages:

[0076] vinyl resin 10%, quartz sand 45%, talcum powder 10%, aluminum hydroxide 10%, glass fiber powder 3%, accelerator 3%, curing agent 1%, coupling agent 1%, defoaming agent 2%, low shrinkage agent 3%. The rest is water. All are mixed and stirred.

[0077] Example 2

[0078] A resin mortar, comprising the following components in the weight percentage based on the total weight of the resin mortar being 100%:

[0079] Vinyl resin 12%, quartz sand 48%, talc powder 15%, aluminum hydroxide 10%, glass fiber powder 5%, accelerator 1%, curing agent 1%, coupling agent 1%, defoaming agent 1%, low shrinkage agent 2%, and the rest is water, all mixed by stirring.

[0080] Example 3,

[0081] A resin mortar, comprising the following components in the weight percentage based on the total weight of the resin mortar being 100%:

[0082] Vinyl resin 15%, quartz sand 50%, talc powder 12%, aluminum hydroxide 12%, glass fiber powder 3%, accelerator 2%, curing agent 2%, coupling agent 2%, defoaming agent 1%, low shrinkage agent 1%, and the rest is water, all mixed by stirring.

[0083] Example 4

[0084] A resin mortar, comprising the following components in the weight percentage based on the total weight of the resin mortar being 100%:

[0085] Vinyl resin 20%, quartz sand 45%, talc powder 10%, aluminum hydroxide 15%, glass fiber powder 3%, accelerator 1%, curing agent 3%, coupling agent 1%, defoaming agent 1%, low shrinkage agent 1%, and the rest is water, all mixed by stirring.

[0086] Example 5

[0087] A resin mortar, comprising the following components in the weight percentage based on the total weight of the resin mortar being 100%:

[0088] Vinyl resin 10%, quartz sand 60%, talc powder 10%, aluminum hydroxide 10%, glass fiber powder 3%, accelerator 1%, curing agent 1%, coupling agent 1%, defoaming agent 1%, low shrinkage agent 1%, and the rest is water, all mixed by stirring.

[0089] Example 6

[0090] A resin mortar, comprising the following components in the weight percentage based on the total weight of the resin mortar being 100%:

[0091] Vinyl resin 10%, quartz sand 45%, talc powder 10%, aluminum hydroxide 10%, glass fiber powder 5%, accelerator 1%, curing agent 3%, coupling agent 3%, defoaming agent 3%, low shrinkage agent 3%, and the rest is water, all mixed by stirring.

[0092] Comparative Example 1

[0093] A resin mortar, including the following components in the weight percentage, based on the total weight of the resin mortar being 100%:

[0094] Vinyl resin 10%, quartz sand 45%, talc powder 10%, aluminum hydroxide 10%, glass fiber powder 0%, accelerator 3%, curing agent 1%, coupling agent 1%, defoaming agent 2%, low shrinkage agent 3%. The rest is water. All are mixed and stirred.

[0095] Comparative Example 2

[0096] A resin mortar, including the following components in the weight percentage, based on the total weight of the resin mortar being 100%:

[0097] Vinyl resin 10%, quartz sand 45%, talc powder 10%, aluminum hydroxide 10%, glass fiber powder 5%, accelerator 4%, curing agent 4%, coupling agent 4%, defoaming agent 4%, low shrinkage agent 4%. The rest is water. All are mixed and stirred.

[0098] Comparative Example 3

[0099] A resin mortar, including the following components in the weight percentage, based on the total weight of the resin mortar being 100%:

[0100] Vinyl resin 15%, quartz sand 50%, talc powder 12%, aluminum hydroxide 12%, glass fiber powder 3%, accelerator 0.2%, curing agent 0.2%, coupling agent 0.2%, defoaming agent 0.2%, low shrinkage agent 0.2%. The rest is water. All are mixed and stirred.

[0101] The mechanical properties of the epoxy resin mortar, including compressive strength, tensile strength, steel plate bonding strength, elastic modulus and linear expansion coefficient, are tested according to the Technical Specification for Epoxy Resin Mortar DL / T5193.

[0102] Test method of corrosion intensity received: three flat resin mortar blocks of the same volume, shape and weight are made for each example, and are immersed in electrolyte of the same concentration for the same time. The weight of the original resin mortar is W. After immersion, the weight is dried and weighed as W1. Weight reduction percentage = (W-W1) / W

[0103] The specific results are as follows:

[0104]

[0105] Table 1

[0106] It can be seen that the higher the corrosion degree percentage, the lower the corrosion resistance; the lower the corrosion degree percentage, the higher the corrosion resistance,

[0107] In the comparative example 1, no glass fiber powder is added, and the proportions of other components are the same as in the example 1. As shown in Table 1, the compressive strength and corrosion resistance of the comparative example 1 are both decreased. It is shown that the addition of glass fiber powder can effectively increase the compressive strength and corrosion resistance. Moreover, it can effectively solve the problem of the disposal of waste glass steel, and has environmental protection significance.

[0108] In the comparative example 2, the content of the accelerator, curing agent, coupling agent, defoaming agent and low shrinkage agent is lower than that in the example 2, and is lower than 1%. Except that the compressive strength is increased, the tensile strength, steel plate bonding strength, elastic modulus, linear expansion coefficient and corrosion resistance are all lower than those in the example 2.

[0109] In the comparative example 3, the content of the accelerator, curing agent, coupling agent, defoaming agent and low shrinkage agent is higher than that in the example 3, and is higher than 3%. Except that the content is unchanged, the compressive strength, tensile strength, steel plate bonding strength, elastic modulus, linear expansion coefficient and corrosion resistance are all lower than those in the example 3.

[0110] Therefore, it is shown that when the content of the accelerator, curing agent, coupling agent, defoaming agent and low shrinkage agent is within the range of 1-3%, the compressive strength, tensile strength, steel plate bonding strength, elastic modulus, linear expansion coefficient and corrosion resistance are all excellent.

[0111] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of manufacturing a glass fiber reinforced plastic circulating tank, characterized by, The steps are as follows: S1, groove base treatment, from bottom to top on the hard surface, glass steel accumulation layer, resin mortar layer, glass steel accumulation layer are laid in turn; S2, groove wall manufacturing, along the base edge lap skeleton, and paste full glass steel plate on the inner wall of the skeleton, and fill resin mortar in the gap between adjacent glass steel plates and the gap between glass steel plate and groove base; S3, accumulation layer treatment, glass steel accumulation layer treatment is made on both sides of the groove wall and the surface of the groove base and covered with resin mortar; S4, column construction, a plurality of vertically arranged columns are installed on the groove base; S5, groove top plate installation, the prefabricated groove top plate is installed on the top of the groove wall to cover the entire groove wall, and the gap between the groove top plate and the groove wall is filled with resin mortar again; S6, groove top plate accumulation, glass steel accumulation layer is made on one side of the groove top plate close to the groove wall and covered with resin mortar; S7, groove inner rib plate construction, groove inner rib plate is connected between the column and the groove wall.

2. The method of claim 1, wherein the method further comprises: After the accumulation layer treatment in step S3, a through hole is formed in the groove wall, and a flange is installed in the through hole; after the groove top plate accumulation in step S6, a through hole is formed in the groove top plate, and a flange is installed in the through hole. ​ 3. The method of claim 1, wherein the method further comprises: In step S3, after the accumulation layer treatment, the inner and outer surfaces of the groove wall and the surface of the groove base are subjected to corrosion-resistant lining treatment; in step S7, after the groove top plate accumulation, the inner and outer surfaces of the groove top plate are subjected to corrosion-resistant lining treatment. ​ 4. The method of claim 1, wherein the method further comprises: The prefabricated groove top plate is composed of a skeleton and glass steel plates installed on the skeleton, and when installed, the groove top plate with glass steel plates is placed on the groove wall with one side facing down. ​ 5. The method of claim 1 or 4, wherein the method further comprises: The skeleton is built by transverse and longitudinal staggered steel plates. ​ 6. The method of claim 1, wherein the method further comprises: The column and the groove inner rib plate are both made of glass steel material, and the outer surface is subjected to glass steel accumulation layer treatment; and the vertical section of the groove inner rib plate is H-shaped, and a flow-through hole is formed in the groove inner rib plate. ​ 7. A glass reinforced plastic circulating tank characterized by A glass steel circulating tank manufacturing method according to any one of claims 1-6.

8. A resin mastic, characterized by, According to any one of claims 1-6, the total weight of the resin mortar is 100%, and the following components are included in the following weight percentages: Vinyl resin 10-20%, quartz sand 45-60%, talc powder 10-15%, aluminum hydroxide 10-15%, glass fiber powder 3-5%, accelerator 1-3%, curing agent 1-3%, coupling agent 1-3%, defoaming agent 1-3%, low shrinkage agent 1-3%.

9. A resinous mastic according to claim 8, wherein, The particle size of the quartz sand is 45-52 mesh.

10. A resin mastic according to claim 8 or 9, characterised in that, The SiO2 content of the quartz sand is ≥70%, the acid resistance is ≥95%, and the water content is ≤0.2%.

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