Preparation system of oil sludge-based glass fiber reinforced plate

Abstract

The invention discloses a preparation system of an oil sludge-based glass fiber reinforced plate, which comprises a pretreatment unit, a melting fiber-forming unit, a composite treatment unit and a post-treatment unit, the pretreatment unit comprises a ball press machine and a calcining kiln, the melting fiber-forming unit comprises a smelting furnace and an automatic metering device, the composite treatment unit comprises a centrifugal atomization glue sprayer and a hydraulic machine, and the post-treatment unit is connected with the ball press machine and the calcining kiln. The post-processing unit comprises a hot air circulation drying tunnel and a numerical control cutting unit. According to the preparation system of the oil sludge-based glass fiber reinforced plate, the formaldehyde-free and high-strength environment-friendly plate is prepared through the processes of oil sludge calcination and impurity removal, waste material compatibility and melting, fiber reinforcement and the like, high-value utilization of hazardous waste is achieved, and the production cost is reduced. Therefore, the problems of resource waste, harm to human health due to excessive formaldehyde release, insufficient mechanical properties, low oil sludge resource utilization rate, environmental pollution and the like of the traditional building board are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmentally friendly material preparation, and in particular to a system and method for preparing formaldehyde-free, high-strength building panels using oily sludge and industrial waste residue, aiming to achieve high-value utilization of hazardous waste. Background Art

[0002] Traditional building panels rely heavily on wood or synthetic resins, resulting in high resource consumption, excessive formaldehyde emissions, and insufficient mechanical properties. Existing technologies attempt to replace some raw materials with industrial waste residues, but these are limited by incomplete raw material processing, uneven fiber dispersion, and adhesive contamination, resulting in low strength and poor environmental performance in the finished products. Oily sludge, a typical hazardous waste, faces traditional treatment methods that not only have low resource utilization rates but are also prone to secondary pollution. Therefore, there is an urgent need to develop a panel manufacturing technology that combines environmental friendliness, high strength, and resource recycling. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in existing building panels, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a preparation system for oil sludge-based glass fiber reinforced boards, which can prepare formaldehyde-free, high-strength environmentally friendly boards through the synergistic effects of calcination and impurity removal, waste material combination melting, fiber reinforcement and other processes, thereby solving the problems of resource waste, pollution and insufficient performance of traditional boards, and realizing efficient resource utilization of oil sludge.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: A system for preparing an oil-sludge-based glass fiber reinforced board comprises a pre-treatment unit, a melt-fibering unit, a composite treatment unit, and a post-treatment unit connected in sequence: Pre-processing unit, including briquette press and calcining kiln; Melt fiber forming unit, including melting furnace and automatic metering device; Composite processing unit, including centrifugal atomizing glue sprayer and hydraulic press; Post-processing unit, including hot air circulation drying tunnel and CNC cutting unit; As a preferred solution of the system for preparing an oil-sludge-based glass fiber reinforced board described in the present invention, the calcining kiln has a calcining temperature of 600-1300° C. and has a built-in multi-layer filter structure.

[0007] As a preferred solution of the system for preparing an oil-sludge-based glass fiber reinforced board described in the present invention, the raw material ratio in the melt-fiberizing unit is 6-8:2-4, and the melting furnace preferably has an operating frequency set at 3-10 kHz.

[0008] As a preferred solution of the system for preparing an oil-sludge-based glass fiber reinforced board according to the present invention, the centrifugal atomizing glue sprayer is equipped with an automatic colorant adding module.

[0009] As a preferred solution of the system for preparing an oil-sludge-based glass fiber reinforced board described in the present invention, the centrifugal atomizing sprayer is integrated with an automatic coupling agent addition module (such as 0.5% silane coupling agent), which enhances the interfacial bonding strength between the fiber and the phenolic resin through covalent bonds, thereby increasing the flexural strength to above 48 MPa.

[0010] As a preferred embodiment of the system for producing oil-sludge-based glass fiber reinforced boards of the present invention, the hydraulic press is preferably a 10T four-column hydraulic press. As a preferred embodiment of the system for producing oil-sludge-based glass fiber reinforced boards of the present invention, the hydraulic press is preferably a 15MPa, 120°C hot press molding machine.

[0011] As a preferred solution of the system for preparing an oil-sludge-based glass fiber reinforced board described in the present invention, the hot air circulation drying tunnel is divided into three temperature zones controlled at 80°C-120°C-80°C.

[0012] Compared with existing technologies, the present invention offers the following advantages: The system for preparing oil sludge-based glass fiber-reinforced boards completely removes organic matter and carbon components from the oil sludge through a calcination process; the glass fiber reinforcement and phenolic resin composite achieve a flexural strength exceeding 45 MPa; the oil sludge utilization rate is ≥85%, and the admixture ratio of industrial waste residues such as waste glass and coal gangue reaches 30%; hot air circulation drying energy consumption is reduced by 25%, and melt fiberization efficiency is increased by 40%. This achieves high-value utilization of hazardous waste, thereby resolving the problems of traditional building board materials, such as resource waste, excessive formaldehyde emissions that harm human health, insufficient mechanical properties, and low oil sludge resource utilization and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them: Figure 1This is a schematic structural diagram of a system for preparing an oil sludge-based glass fiber reinforced board according to the present invention; Figure 2 This is a schematic structural diagram of a pretreatment unit of a system for preparing an oil sludge-based glass fiber reinforced board according to the present invention; Figure 3 This is a schematic structural diagram of a melt-fibering unit of a system for preparing an oil-sludge-based glass fiber reinforced board according to the present invention; Figure 4 This is a schematic structural diagram of a composite processing unit of a system for preparing an oil sludge-based glass fiber reinforced board according to the present invention; Figure 5 This is a structural schematic diagram of a post-processing unit of a system for preparing an oil sludge-based glass fiber reinforced board according to the present invention; In the figure: 100, pre-treatment unit; 110, pelletizing machine; 120, calcining kiln; 200, melt-fibering unit; 210, smelting furnace; 220, automatic metering device; 300, composite treatment unit; 310, centrifugal atomizing glue sprayer; 320, hydraulic press; 400, post-treatment unit; 410, hot air circulation drying tunnel; 420, CNC cutting unit. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0015] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0016] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0017] The present invention provides a system for preparing oil sludge-based glass fiber reinforced boards. Through processes such as calcining oil sludge to remove impurities, mixing and melting waste materials, and fiber reinforcement, formaldehyde-free, high-strength, environmentally friendly boards are prepared, achieving high-value utilization of hazardous waste, thereby solving the problems of traditional building boards such as resource waste, excessive formaldehyde release that harms human health, insufficient mechanical properties, and low oil sludge resource utilization and environmental pollution.

[0018] Figure 1-Figure 5 The structure diagram of one embodiment of a system for preparing an oil-sludge-based glass fiber reinforced board according to the present invention is shown. Figure 1-Figure 5The present embodiment provides a system for preparing an oil-sludge-based glass fiber reinforced board, the main body of which includes a pre-treatment unit 100, a melt-fiberizing unit 200, a composite treatment unit 300 and a post-treatment unit 400.

[0019] The pretreatment unit 100 includes a pelletizing machine 110 and a calcining kiln 120. Preferably, in this embodiment, the calcining kiln 120 has a calcining temperature of 600-1300°C and a built-in multi-layer filter structure. The multi-layer filter structure provided in the calcining kiln 120 improves the impurity removal efficiency.

[0020] The melt-fibering unit 200 includes a melting furnace 210 and an automatic metering device 220. Preferably, in this embodiment, the raw material ratio in the melt-fibering unit 200 is 8:2, and the operating frequency of the melting furnace 210 is set at 3-5 kHz.

[0021] The composite processing unit 300 includes a centrifugal atomizing glue sprayer 310 and a hydraulic press 320. Preferably, in this embodiment, the centrifugal atomizing glue sprayer 310 is equipped with an automatic colorant addition module to achieve product coloring. The hydraulic press 320 is a 10T four-column hydraulic press.

[0022] The post-processing unit 400 includes a hot air circulation drying tunnel 410 and a CNC cutting unit 420. Preferably, in this embodiment, the hot air circulation drying tunnel 410 is divided into three temperature zones controlled at 80°C-120°C-80°C.

[0023] Combine Figure 1-Figure 5 The system for preparing an oil sludge-based glass fiber reinforced board according to the present embodiment is specifically used as follows: in the pretreatment unit 100, the oily sludge is first dehydrated to a moisture content of ≤30%. After pyrolysis to recover the oil, the residue is mixed by a double-shaft mixer, then pressed into shape by a briquette machine 110, and finally calcined in a calcining kiln 120. In the melt-fibering unit 200, the calcined oil sludge residue is mixed with (industrial solid waste and hazardous waste such as waste glass, coal gangue, fly ash, or raw materials with high silicon and aluminum content, such as quartz sand, as a compound, any one or more of which are selected) in a ratio of 8:2 to ensure that the silicon content in the oil sludge pyrolysis residue is controlled within 50%-65%, the aluminum content is controlled within 10%-18%, and the calcium content is controlled within 10%-20%. After granulation, the stability of the oil sludge pyrolysis residue as a fiber raw material is ensured. The fibers are then melted in a melting furnace 210 and prepared into fibers in a high-speed centrifuge. In the composite processing unit 300, the fibers are sprayed with phenolic resin by a centrifugal atomizing sprayer 310, then laid by a pendulum, and finally hot-pressed by a 10T four-column hydraulic press 320. In the post-processing unit 400, the sheets are first dried in a hot air circulation drying tunnel 410, then cut to length by a CNC cutting unit 420, and finally polished to obtain the finished product.

[0024] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A system for preparing an oil sludge-based glass fiber reinforced board, characterized in that: Includes the following connected in sequence: A pre-processing unit (100) comprising a pelletizing machine (110) and a calcining kiln (120); A melt-fibering unit (200) comprising a melting furnace (210) and an automatic metering device (220); A composite processing unit (300) includes a centrifugal atomizing glue sprayer (310) and a hydraulic press (320); The post-processing unit (400) includes a hot air circulation drying tunnel (410) and a CNC cutting unit (420).

2. The system for preparing an oil sludge-based glass fiber reinforced board according to claim 1, characterized in that: The calcining kiln (120) has a calcining temperature of 600-1300°C, and the calcining kiln (120) has a built-in multi-layer filter structure.

3. The system for preparing an oil sludge-based glass fiber reinforced board according to claim 1, characterized in that: The raw material input ratio in the melt-fibering unit (200) is 6-8:2-4.

4. The system for preparing an oil sludge-based glass fiber reinforced board according to claim 1, characterized in that: The centrifugal atomizing glue sprayer (310) is equipped with a colorant automatic adding module.

5. The system for preparing an oil sludge-based glass fiber reinforced board according to claim 1, characterized in that: The hydraulic press (320) is a 10T four-column hydraulic press.

6. The system for preparing an oil sludge-based glass fiber reinforced board according to claim 1, characterized in that: The hot air circulation drying tunnel (410) is divided into three temperature zones controlled at 80°C-120°C-80°C.

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