Environment-friendly shaving board based on negative oxygen ions and preparation system thereof

Abstract

The present application relates to the technical field of shaving board preparation, and particularly relates to an environment-friendly shaving board based on negative oxygen ions and a preparation system thereof; the shaving board comprises an upper surface layer, a core layer and a lower surface layer which are made of shavings and tourmaline negative ion powder; the preparation system comprises a raw material supply module for providing raw materials for preparing the environment-friendly shaving board; a drying and screening module for drying the shavings and screening the shavings according to the size of the shavings; a glue adjusting and stirring module for adjusting the glue and uniformly stirring and mixing the glue and the shavings; a paving and hot-pressing module for paving a board blank with a gradient structure and hot-pressing the board blank into a rough board blank; a cooling and cutting module for cooling and cutting the rough board blank to obtain a shaving board with a proper size; and a sanding and polishing module for sanding and polishing the shaving board to obtain a smooth shaving board; the quality of the shaving board is determined to optimize the preparation process of the shaving board, and the quality of the shaving board is improved.

Description

Technical Field

[0001] This invention relates to the field of particleboard preparation technology, and in particular to an environmentally friendly particleboard based on negative oxygen ions and its preparation system. Background Technology

[0002] Particleboard is favored for its uniform structure, good processing performance, excellent sound absorption and insulation properties, and low production cost. However, traditional particleboard has poor antibacterial properties, a short lifespan, and releases gases that are harmful to human health, which limits its application range.

[0003] Chinese Patent Application Publication No. CN109591148A discloses a manufacturing process for antibacterial and negative ion functional particleboard, belonging to the field of particleboard production technology. It solves the problem of poor antibacterial and anti-mildew performance in existing products. The manufacturing process of the described antibacterial and negative ion functional particleboard includes the following steps: raw materials are chipped, screened, shaving, dried, and air-separated to separate the core layer and surface layer materials; MDI adhesive is added to the core layer material and stirred evenly; MDI adhesive, negative ion catalyst, and antibacterial and antioxidant agent are mixed evenly and then added to the surface layer material and stirred evenly; then, the surface layer material, core layer material, and surface layer material are laid in sequence to form a flat and continuous expanded board blank of the required thickness; the blank is then pre-pressed by a pre-pressing machine, edge-trimming sawed, and cross-cut sawed to form a board blank; the board blank is then sent to a hot press for hot pressing to form particleboard; after unloading, cooling, edge sawing, and sanding, the antibacterial and negative ion functional particleboard is obtained. This invention can be used for the production of particleboard.

[0004] It is evident that existing technologies suffer from low production quality and efficiency in the preparation of negative ion environmentally friendly particleboard due to insufficient precision in controlling each stage of the preparation process. Summary of the Invention

[0005] To address this issue, the present invention provides an environmentally friendly particleboard based on negative oxygen ions and its preparation system, thereby overcoming the problem of low quality and efficiency in the preparation of environmentally friendly particleboard based on negative oxygen ions due to insufficient precision in controlling each stage of the preparation process in the prior art.

[0006] To achieve the above objectives, the present invention provides a system for preparing environmentally friendly particleboard based on negative oxygen ions, comprising:

[0007] The raw material supply module includes a raw material supply bin for providing raw materials for the preparation of environmentally friendly particleboard and a non-conforming particleboard recycling bin for recycling non-conforming particleboard.

[0008] The drying and screening module, which is connected to the raw material supply module, includes a wood shavings drying and screening box for drying wood shavings and screening them according to their size.

[0009] The adhesive mixing module, which is connected to the drying and screening module, includes an adhesive mixing drum for mixing the adhesive and uniformly mixing the adhesive with wood shavings.

[0010] The hot pressing module for laying out a slab with a gradient structure is connected to the adhesive mixing module and includes a hot pressing box for laying out a slab with a gradient structure and hot pressing the slab into a rough slab.

[0011] The cooling and cutting module, which is connected to the hot pressing module, includes a cooling and cutting box for cooling and cutting the raw board blank to obtain particleboard of appropriate size.

[0012] A sanding and polishing module, which is connected to a cooling and cutting module, includes a particleboard sanding box for sanding and polishing particleboard.

[0013] The control module is connected to the raw material supply module, drying and screening module, adhesive mixing module, laying and hot pressing module, cooling and cutting module, and sanding and polishing module, respectively. The control module includes:

[0014] The data acquisition unit is used to acquire parameters during the particleboard manufacturing process and the usage parameters of the particleboard required by the customer.

[0015] The data analysis unit is used to determine the amount of tourmaline negative ion powder to be added based on the usage parameters of the particleboard obtained by the data acquisition unit.

[0016] The control unit is used to determine the control of the environmentally friendly particleboard preparation process based on the analysis results of the acquired data by the data analysis unit.

[0017] An adjustment unit is used to determine adjustments to the environmentally friendly particleboard preparation process based on the difference between the roughness of the blank and the preset roughness.

[0018] The optimization unit is used to determine the optimization of the environmentally friendly particleboard preparation process based on the pass rate of the environmentally friendly particleboard preparation.

[0019] Further, the data analysis unit determines that the wood shavings are unqualified based on the comparison result that the particle diameter of the wood shavings is greater than the first particle diameter, and the control unit transmits the unqualified wood shavings to the raw material supply module. The data analysis unit determines that the wood shavings are qualified core layer wood shavings based on the comparison result that the particle diameter of the wood shavings is greater than the second particle diameter and less than or equal to the first particle diameter, and the control unit controls the transmission of the qualified core layer wood shavings to the glue mixing module. The data analysis unit determines that the wood shavings are qualified surface layer wood shavings based on the comparison result that the particle diameter of the wood shavings is less than or equal to the second particle diameter, and the control unit mixes the qualified surface layer wood shavings with tourmaline negative ion powder and transmits the mixing medium to the glue mixing module.

[0020] Furthermore, the data analysis unit determines the amount of tourmaline negative ion powder added as the first addition amount based on the comparison results of processing parameters being greater than preset processing parameters, and the data analysis unit determines the amount of tourmaline negative ion powder added as the second addition amount based on the comparison results of processing parameters being less than or equal to preset processing parameters.

[0021] Furthermore, the data analysis unit determines the adjustment of the preparation process of the environmentally friendly particleboard by the adjustment unit based on the comparison result of the roughness of the blank being greater than the preset roughness.

[0022] Furthermore, under the condition that the environmentally friendly particleboard preparation process is to be adjusted, the adjustment unit determines to adjust the hot pressing pressure and hot pressing time with a first adjustment coefficient based on the comparison result that the difference between the roughness of the blank and the preset roughness is greater than the preset difference.

[0023] Furthermore, when the adjustment unit determines to adjust the environmentally friendly particleboard preparation process, it determines to adjust the preset particle size diameter using a second adjustment coefficient based on a comparison result showing that the difference between the roughness of the blank and the preset roughness is less than or equal to the preset difference.

[0024] Furthermore, the optimization unit determines the optimization of the environmentally friendly particleboard preparation process based on the comparison results of the qualified rate of environmentally friendly particleboard being less than the preset qualified rate.

[0025] Furthermore, under the condition that the environmentally friendly particleboard preparation process is optimized, the optimization unit determines to perform secondary impurity removal on the raw materials based on the comparison result that the difference between the pass rate and the preset pass rate is greater than the preset difference.

[0026] Furthermore, under the condition that the environmentally friendly particleboard preparation process is optimized, the optimization unit determines to increase the glue mixing time by an optimization coefficient based on the comparison result that the difference between the pass rate and the preset pass rate is less than or equal to the preset difference.

[0027] On the other hand, the present invention provides an environmentally friendly particleboard based on negative oxygen ions prepared using the aforementioned environmentally friendly particleboard preparation system based on negative oxygen ions. The environmentally friendly particleboard based on negative oxygen ions includes an upper surface layer, a core layer, and a lower surface layer. The upper surface layer is made of a mixture of wood shavings and tourmaline negative ion powder. The upper surface layer, the core layer, and the lower surface layer are bonded together using a two-component soybean-based adhesive.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: by using a two-component soybean-based adhesive instead of a traditional phenolic resin adhesive, the release of harmful gases is reduced, improving the environmental friendliness of the particleboard. Furthermore, the drying and screening module screens the wood shavings of different sizes, transferring unqualified large wood shavings to the raw material supply module for secondary shaving, and transferring qualified surface and core wood shavings to the adhesive mixing module for the next stage of preparation. This improves the precision of the environmentally friendly wood shavings preparation process control, thereby improving the quality and efficiency of environmentally friendly particleboard preparation.

[0029] Furthermore, this invention uses a data analysis unit to calculate processing parameters based on particleboard usage parameters, thereby determining the amount of tourmaline negative ion powder to be added. This improves the accuracy of the environmentally friendly particleboard preparation process. In addition, the data analysis unit determines different addition amounts in real time based on the comparison results between the processing parameters and preset processing parameters. This enables the control of parameters in the environmentally friendly particleboard preparation process according to real-time customer needs, improving the accuracy of the environmentally friendly particleboard preparation process control while reducing the waste of negative ion powder.

[0030] Furthermore, this invention uses a data analysis unit to compare the roughness of the raw board blank with a preset roughness to determine whether to adjust the preparation process of the environmentally friendly particleboard. If the roughness of the raw board blank is greater than the preset roughness, the adjustment unit adjusts the preparation process; if the roughness of the raw board blank is less than or equal to the preset roughness, the data analysis unit determines to maintain the original state for the next preparation. By analyzing the roughness of the raw board blank, the passability of the preparation process is determined, and then the selection of whether to adjust the preparation process is made, thereby improving the accuracy of the control of the environmentally friendly particleboard preparation process and thus improving the quality of particleboard preparation.

[0031] Furthermore, the present invention determines the adjustment method by adjusting the roughness of the blank and the difference between the roughness and the preset roughness. If the difference is greater than the preset difference, the adjustment unit determines that the particleboard is too rough and thus determines to adjust the parameters in the hot pressing process during the preparation of the environmentally friendly particleboard. If the difference is less than the preset difference, the adjustment unit determines to adjust the particle screening stage during the preparation of the environmentally friendly particleboard. The above method improves the accuracy of the preparation process of the environmentally friendly particleboard and thus improves the quality of the environmentally friendly particleboard.

[0032] Furthermore, the present invention optimizes the environmentally friendly particleboard preparation process by comparing the pass rate of the unadjusted environmentally friendly particleboard with the preset pass rate through the optimization unit. If the pass rate is less than the preset pass rate, it indicates that the surface of the environmentally friendly particleboard contains spots. The optimization unit optimizes the environmentally friendly particleboard containing spots, thereby improving the accuracy of the environmentally friendly particleboard preparation process control and thus improving the quality of environmentally friendly particleboard preparation.

[0033] Furthermore, this invention optimizes environmentally friendly particleboard containing spots using an optimization unit. The optimization unit determines the optimization method based on a comparison between the difference between the pass rate and the preset pass rate and a preset difference. If the difference is greater than the preset difference, it indicates that there are many environmentally friendly particleboards containing spots, and the optimization unit determines to optimize the glue mixing stage in the environmentally friendly particleboard preparation process. If the difference is less than or equal to the preset difference, it indicates that there are few environmentally friendly particleboards containing spots, and the optimization unit determines to optimize the raw material supply stage in the environmentally friendly particleboard preparation process. Through the above method, the accuracy of control over each stage of the environmentally friendly particleboard preparation process is improved, thereby enhancing the quality of environmentally friendly particleboard preparation. Attached Figure Description

[0034] Figure 1 This is a structural diagram of the preparation system for environmentally friendly particleboard based on negative oxygen ions, according to an embodiment of the present invention.

[0035] Figure 2 This is a flowchart illustrating the adjustment unit of the environmentally friendly particleboard preparation system based on negative oxygen ions, as described in an embodiment of the present invention.

[0036] Figure 3 This is a flowchart of the optimization unit of the preparation system for environmentally friendly particleboard based on negative oxygen ions in an embodiment of the present invention.

[0037] Figure 4 This is a simplified production process diagram of the environmentally friendly particleboard preparation system based on negative oxygen ions, according to an embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the structure of the environmentally friendly particleboard prepared by the negative oxygen ion-based environmentally friendly particleboard preparation system according to an embodiment of the present invention.

[0039] Figure 4-5 In the middle, 1-raw material supply box, 2-unqualified wood shavings recycling box, 3-wood shavings drying and screening box, 4-adhesive mixing drum, 5-conveyor belt, 6-laying hot press box, 7-cooling and cutting box, 8-particleboard grinding box, 9-upper surface layer, 10-core layer, 11-lower surface layer. Detailed Implementation

[0040] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0043] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Please see Figures 1-4 As shown, Figure 1 This is a structural diagram of the preparation system for environmentally friendly particleboard based on negative oxygen ions, according to an embodiment of the present invention. Figure 2 This is a flowchart illustrating the adjustment unit of the environmentally friendly particleboard preparation system based on negative oxygen ions, as described in an embodiment of the present invention. Figure 3 This is a flowchart of the optimization unit of the preparation system for environmentally friendly particleboard based on negative oxygen ions in an embodiment of the present invention. Figure 4 This is a simplified production process diagram of the environmentally friendly particleboard preparation system based on negative oxygen ions, according to an embodiment of the present invention.

[0045] This invention relates to an environmentally friendly particleboard preparation system based on negative oxygen ions, comprising:

[0046] The raw material supply module includes a raw material supply box 1 for providing raw materials for the preparation of environmentally friendly particleboard and a substandard particleboard recycling box 2 for recycling substandard particleboard.

[0047] The drying and screening module, which is connected to the raw material supply module, includes a wood shavings drying and screening box 3 for drying wood shavings and screening them according to their size.

[0048] The adhesive mixing module is connected to the drying and screening module, including an adhesive mixing drum 4 for mixing the adhesive and uniformly mixing the adhesive with the wood shavings;

[0049] The hot pressing module for laying out the adhesive mixing module includes a hot pressing box 6 for laying out a slab with a gradient structure and hot pressing the slab into a rough slab.

[0050] Cooling and cutting module, which is connected to the laying hot pressing module, is used to cool and cut the rough board blank to obtain particleboard of appropriate size. Cooling and cutting box 7.

[0051] A sanding and polishing module, which is connected to a cooling and cutting module, is used to sand and polish particleboard to obtain a smooth particleboard.

[0052] The control module is connected to the raw material supply module, drying and screening module, adhesive mixing module, laying and hot pressing module, cooling and cutting module, and sanding and polishing module, respectively. The control module includes:

[0053] The data acquisition unit is used to acquire parameters during the particleboard manufacturing process and the usage parameters of the particleboard required by the customer.

[0054] The data analysis unit is used to determine the amount of tourmaline negative ion powder to be added based on the usage parameters of the particleboard obtained by the data acquisition unit.

[0055] The control unit is used to determine the control of the environmentally friendly particleboard preparation process based on the analysis results of the acquired data by the data analysis unit.

[0056] The adjustment unit is used to determine the adjustment method for the environmentally friendly particleboard preparation process based on the comparison result between the roughness of the blank and the preset roughness and the preset difference.

[0057] The optimization unit is used to determine the optimization of the environmentally friendly particleboard preparation process based on the comparison between the qualified rate of the environmentally friendly particleboard preparation and the preset qualified rate.

[0058] In this embodiment of the invention, the raw materials include soaked wood that is sequentially fed into a wood chipper and a wood shaving machine to obtain wood shavings. The parameters in the process of preparing the particleboard include the particle diameter, the moisture content of the wood shavings, and the content of tourmaline negative ion powder. The adhesive used is a two-component soybean-based adhesive. The size of the wood shavings is determined according to the mesh size through which the wood shavings pass.

[0059] Specifically, under the condition that the drying and screening module dries the wood shavings and screens them according to their size, the data analysis unit determines the type of wood shavings based on the comparison result between the particle size diameter D of the wood shavings and the preset particle size diameter Di.

[0060] If D > D1, the data analysis unit determines that the wood shavings are substandard.

[0061] If D2 < D ≤ D1, the data analysis unit determines that the wood shavings are qualified core layer wood shavings;

[0062] If D≤D2, the data analysis unit determines that the wood shavings are qualified surface wood shavings;

[0063] Where i = 1, 2, D1 > D2, the first preset particle size diameter D1 is the first layer sieve mesh, and the second preset particle size diameter D2 is the second layer sieve mesh.

[0064] Specifically, when the control unit determines that the wood shavings are defective, the control unit transmits the defective wood shavings to the raw material supply module for secondary shaving.

[0065] When the control unit determines that the wood shavings are qualified core layer wood shavings or qualified surface layer wood shavings, the control unit transmits the qualified core layer wood shavings and the qualified surface layer wood shavings to the glue mixing module for glue application.

[0066] Specifically, this invention reduces the release of harmful gases and improves the environmental friendliness of particleboard by using a two-component soybean-based adhesive instead of traditional phenolic resin adhesive. Furthermore, the drying and screening module filters shavings of different sizes, transferring unqualified large shavings to the raw material supply module for secondary shaving, while qualified surface and core shavings are transferred to the adhesive mixing module for the next stage of preparation. This improves the precision of the environmentally friendly shavings preparation process control, thereby enhancing the quality and efficiency of environmentally friendly particleboard production.

[0067] Specifically, the data analysis unit calculates the processing parameter S based on the usage parameters of the particleboard obtained by the data acquisition unit to determine the amount of tourmaline negative ion powder to be added, and sets:

[0068]

[0069] Wherein, X represents the average bacterial content of traditional particleboard, X0 represents the bacterial content standard of particleboard of the present invention, α represents the influence coefficient of particleboard bacterial content on the amount of tourmaline negative ion powder added, and its value is set to 0.68, Y represents the negative oxygen ion concentration of the environment in which the particleboard is used, Y0 represents the preset concentration, and its value is set to 800, and β represents the influence coefficient of humidity on the amount of tourmaline negative ion powder added, and its value is set to 0.32.

[0070] Specifically, the data analysis module determines the amount of tourmaline negative ion powder to be added based on the comparison result between the processing parameter S and the preset processing parameter S0.

[0071] If S > S0, the data analysis module determines the amount of tourmaline negative ion powder added as the first addition amount A1;

[0072] If S≤S0, the data analysis module determines the amount of tourmaline negative ion powder added as the second addition amount A2;

[0073] Where A1 < A2.

[0074] In this embodiment of the invention, the first addition amount of tourmaline negative ion powder is set to 2% of the total amount of particleboard raw material, and the second addition amount of tourmaline negative ion powder is set to 4% of the total amount of particleboard raw material. However, the above values ​​are not limited to these, and those skilled in the art can adjust the values ​​according to actual needs.

[0075] Specifically, this invention uses a data analysis unit to calculate processing parameters based on particleboard usage parameters, thereby determining the amount of tourmaline negative ion powder to be added. This improves the accuracy of the environmentally friendly particleboard preparation process. Furthermore, the data analysis unit determines different addition amounts in real time based on the comparison results between the processing parameters and preset processing parameters. This enables the control of parameters in the environmentally friendly particleboard preparation process according to real-time customer needs, improving the accuracy of the environmentally friendly particleboard preparation process control while reducing the waste of negative ion powder.

[0076] Specifically, under the condition that the mixed medium is hot-pressed after being stirred evenly, the control module determines that the mixed medium is hot-pressed with hot-pressing pressure F and hot-pressing time T to obtain a rough board blank, and the data analysis unit determines whether the adjustment unit should adjust the environmentally friendly particleboard preparation process based on the comparison result of the roughness H of the rough board blank with the preset roughness H0.

[0077] If H > H0, the data analysis unit determines that the adjustment unit should adjust the environmentally friendly particleboard preparation process;

[0078] If H≤H0, the data analysis unit determines that the adjustment unit will not adjust the environmentally friendly particleboard preparation process;

[0079] The preset roughness H0 value is 1.4, but the above value is not limited to this. Those skilled in the art can also adjust the value according to actual needs.

[0080] Specifically, the roughness H of the blank is calculated using the following formula, and is set as follows:

[0081] H = Lmax - Lmin;

[0082] Where Lmax represents the highest height of the upper surface of the blank, and Lmin represents the lowest height of the upper surface of the blank.

[0083] Specifically, this invention uses a data analysis unit to compare the roughness of the raw board blank with a preset roughness to determine whether to adjust the preparation process of the environmentally friendly particleboard. If the roughness of the raw board blank is greater than the preset roughness, the adjustment unit adjusts the preparation process. If the roughness of the raw board blank is less than or equal to the preset roughness, the data analysis unit determines to maintain the original state for the next preparation. By analyzing the roughness of the raw board blank, the passability of the preparation process is determined, and then the selection of whether to adjust the preparation process is made, thereby improving the accuracy of the control of the environmentally friendly particleboard preparation process and thus improving the quality of particleboard preparation.

[0084] Specifically, when the adjustment unit determines to adjust the environmentally friendly particleboard preparation process, the adjustment unit determines the adjustment method based on the comparison result of the difference between the roughness of the blank and the preset roughness ΔH and the preset difference ΔH0.

[0085] If △H>△H0, the adjustment unit determines to adjust the environmentally friendly particleboard preparation process in a first adjustment manner;

[0086] If △H≤△H0, the adjustment unit determines to adjust the environmentally friendly particleboard preparation process using the second adjustment method;

[0087] The preset difference △H0 is 1.5, but the above value is not limited to this. Those skilled in the art can also adjust the value according to actual needs.

[0088] Specifically, when the adjustment unit determines to adjust in a first adjustment manner, the adjustment unit adjusts the hot pressing pressure and hot pressing time using a first adjustment coefficient K1;

[0089] When the adjustment unit determines to adjust in the second adjustment method, the adjustment unit adjusts the preset particle diameter using the second adjustment coefficient K2.

[0090] Specifically, the first adjustment coefficient K1 is calculated and set by the following formula:

[0091]

[0092] The second adjustment factor K2 is calculated and set by the following formula:

[0093]

[0094] Set the adjusted hot pressing pressure and hot pressing time to F' = K1 × F, T' = K1 × T, respectively;

[0095] Set the adjusted preset particle size diameter to Di' = K2 × Di.

[0096] Specifically, the present invention determines the adjustment method by adjusting the roughness of the blank and the difference between the roughness and the preset roughness. If the difference is greater than the preset difference, the adjustment unit determines that the particleboard is too rough and thus determines to adjust the parameters in the hot pressing process during the preparation of environmentally friendly particleboard. If the difference is less than the preset difference, the adjustment unit determines to adjust the particle screening stage during the preparation of environmentally friendly particleboard. The above method improves the accuracy of the preparation process of environmentally friendly particleboard and thus improves the quality of environmentally friendly particleboard.

[0097] Specifically, when the control module determines that the adjustment unit will not adjust the environmentally friendly particleboard preparation process, the control module transfers the raw board blank to the cooling and cutting module to obtain a raw board blank that meets the size requirements after cutting. The control module then transfers the raw board blank to the sanding and polishing module for polishing to finally obtain the finished environmentally friendly particleboard.

[0098] Specifically, the optimization unit determines the optimization of the environmentally friendly particleboard preparation process based on the comparison between the unadjusted pass rate G and the preset pass rate G0.

[0099] If G < G0, the optimization unit determines to optimize the environmentally friendly particleboard preparation process;

[0100] If G≥G0, the optimization unit determines that it will not optimize the environmentally friendly particleboard preparation process.

[0101] The preset pass rate G0 is the average pass rate of environmentally friendly particleboard produced in history. However, the above value is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0102] Specifically, the present invention optimizes the environmentally friendly particleboard preparation process by comparing the pass rate of the unadjusted environmentally friendly particleboard with the preset pass rate through an optimization unit. If the pass rate is less than the preset pass rate, it indicates that the surface of the environmentally friendly particleboard contains spots. The optimization unit optimizes the environmentally friendly particleboard containing spots, thereby improving the accuracy of the environmentally friendly particleboard preparation process control and thus improving the quality of the environmentally friendly particleboard.

[0103] Specifically, under the condition that the environmentally friendly particleboard preparation process is to be optimized, the optimization unit determines the optimization method based on the comparison result of the difference between the pass rate and the preset pass rate ΔG and the preset difference ΔG0.

[0104] If △G>△G0, the optimization unit determines to perform optimization in the first optimization mode;

[0105] If △G≤△G0, the optimization unit determines to perform optimization using the second optimization method;

[0106] The preset difference △G0 is 0.15, but the value is not limited to this. Those skilled in the art can adjust the value according to actual needs.

[0107] Specifically, under the condition that the environmentally friendly particleboard preparation process is optimized in an optimized manner, the optimization unit determines to increase the time of glue mixing by an optimization coefficient Q.

[0108] Under the condition that the optimization unit determines to optimize the preparation process of environmentally friendly particleboard in a second optimization manner, the optimization unit determines to perform secondary impurity removal on the raw materials.

[0109] Specifically, the optimization coefficient Q is calculated and set by the following formula:

[0110]

[0111] Specifically, this invention optimizes environmentally friendly particleboard containing spots through an optimization unit. The optimization unit determines the optimization method based on the comparison between the difference between the pass rate and the preset pass rate and the preset difference. If the difference is greater than the preset difference, it indicates that there are many environmentally friendly particleboards containing spots, and the optimization unit determines to optimize the glue mixing stage in the preparation process of environmentally friendly particleboard. If the difference is less than or equal to the preset difference, it indicates that there are few environmentally friendly particleboards containing spots, and the optimization unit determines to optimize the raw material supply stage in the preparation process of environmentally friendly particleboard. Through the above method, the accuracy of control over each stage of the preparation process of environmentally friendly particleboard is improved, thereby improving the quality of environmentally friendly particleboard preparation.

[0112] Please see Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the environmentally friendly particleboard prepared by the negative oxygen ion-based environmentally friendly particleboard preparation system according to an embodiment of the present invention.

[0113] Specifically, an environmentally friendly particleboard based on negative oxygen ions, prepared using the aforementioned environmentally friendly particleboard preparation system, includes an upper surface layer 9, a core layer 10, and a lower surface layer 11. The upper surface layer is made of a mixture of particleboard and tourmaline negative ion powder, and the upper surface layer, core layer, and lower surface layer are bonded together using a two-component soybean-based adhesive.

[0114] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0115] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A system for preparing environmentally friendly particleboard based on negative oxygen ions, characterized in that, include: The raw material supply module includes a raw material supply bin for providing raw materials for the preparation of environmentally friendly particleboard and a non-conforming particleboard recycling bin for recycling non-conforming particleboard. The drying and screening module, which is connected to the raw material supply module, includes a wood shavings drying and screening box for drying wood shavings and screening them according to their size. The adhesive mixing module, which is connected to the drying and screening module, includes an adhesive mixing drum for mixing the adhesive and uniformly mixing the adhesive with wood shavings. The hot pressing module for laying out a slab with a gradient structure is connected to the adhesive mixing module and includes a hot pressing box for laying out a slab with a gradient structure and hot pressing the slab into a rough slab. The cooling and cutting module, which is connected to the hot pressing module, includes a cooling and cutting box for cooling and cutting the raw board blank to obtain particleboard of appropriate size. A sanding and polishing module, which is connected to a cooling and cutting module, includes a particleboard sanding box for sanding and polishing particleboard. The control module is connected to the raw material supply module, drying and screening module, adhesive mixing module, laying and hot pressing module, cooling and cutting module, and sanding and polishing module, respectively. The control module includes: The data acquisition unit is used to acquire parameters during the particleboard manufacturing process and the usage parameters of the particleboard required by the customer. The data analysis unit is used to determine the amount of tourmaline negative ion powder to be added based on the usage parameters of the particleboard obtained by the data acquisition unit. The control unit is used to determine the control of the environmentally friendly particleboard preparation process based on the analysis results of the acquired data by the data analysis unit. An adjustment unit is used to determine adjustments to the environmentally friendly particleboard preparation process based on the difference between the roughness of the blank and the preset roughness. Under the condition that the environmentally friendly particleboard preparation process needs to be adjusted, the adjustment unit determines to adjust the hot pressing pressure and hot pressing time with a first adjustment coefficient based on the comparison result that the difference between the roughness of the blank and the preset roughness is greater than the preset difference. Under the condition that the environmentally friendly particleboard preparation process is to be adjusted, the adjustment unit determines to adjust the preset particle size diameter with a second adjustment coefficient based on the comparison result that the difference between the roughness of the blank and the preset roughness is less than or equal to the preset difference. Specifically, the first adjustment coefficient K1 is calculated and set by the following formula: The second adjustment factor K2 is calculated and set by the following formula: In the formula, K1 is the first adjustment coefficient, K2 is the second adjustment coefficient, ΔH is the difference between the roughness of the blank and the preset roughness, and ΔH0 is the preset difference. The optimization unit is used to determine the optimization of the environmentally friendly particleboard preparation process based on the pass rate of the environmentally friendly particleboard preparation.

2. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 1, characterized in that, The data analysis unit determines that the wood shavings are unqualified based on the comparison result of the particle diameter being greater than the first particle diameter. The control unit transmits the unqualified wood shavings to the raw material supply module. The data analysis unit determines that the wood shavings are qualified core layer wood shavings based on the comparison result of the particle diameter being greater than the second particle diameter and less than or equal to the first particle diameter. The control unit controls the transmission of the qualified core layer wood shavings to the glue mixing module. The data analysis unit determines that the wood shavings are qualified surface layer wood shavings based on the comparison result of the particle diameter being less than or equal to the second particle diameter. The control unit mixes the qualified surface layer wood shavings with tourmaline negative ion powder and transmits the mixing medium to the glue mixing module.

3. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 2, characterized in that, The data analysis unit determines the amount of tourmaline negative ion powder added as the first addition amount based on the comparison results of processing parameters greater than preset processing parameters, and determines the amount of tourmaline negative ion powder added as the second addition amount based on the comparison results of processing parameters less than or equal to preset processing parameters.

4. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 3, characterized in that, The data analysis unit determines the adjustment of the preparation process of the environmentally friendly particleboard by the adjustment unit based on the comparison results of the roughness of the blank being greater than the preset roughness.

5. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 4, characterized in that, The optimization unit determines the optimization of the environmentally friendly particleboard preparation process based on the comparison results of the qualified rate of environmentally friendly particleboard being less than the preset qualified rate.

6. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 5, characterized in that, Under the condition that the environmentally friendly particleboard preparation process is optimized, the optimization unit determines to perform secondary impurity removal on the raw materials based on the comparison result that the difference between the pass rate and the preset pass rate is greater than the preset difference.

7. The preparation system for environmentally friendly particleboard based on negative oxygen ions according to claim 6, characterized in that, Under the condition that the environmentally friendly particleboard preparation process is optimized, the optimization unit determines to increase the glue mixing time by an optimization coefficient based on the comparison result that the difference between the pass rate and the preset pass rate is less than or equal to the preset difference.

8. An environmentally friendly particleboard based on negative oxygen ions, prepared using the preparation system for environmentally friendly particleboard based on negative oxygen ions as described in any one of claims 1-7, characterized in that, The environmentally friendly particleboard based on negative oxygen ions includes an upper surface layer, a core layer, and a lower surface layer. The upper surface layer is made of a mixture of wood shavings and tourmaline negative ion powder. The upper surface layer, core layer, and lower surface layer are bonded together with a two-component soybean-based adhesive.

Images