CN112092136A - Low-odor environment-friendly shaving board and preparation process thereof - Google Patents
Low-odor environment-friendly shaving board and preparation process thereof Download PDFInfo
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- CN112092136A CN112092136A CN202010983087.4A CN202010983087A CN112092136A CN 112092136 A CN112092136 A CN 112092136A CN 202010983087 A CN202010983087 A CN 202010983087A CN 112092136 A CN112092136 A CN 112092136A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a preparation process of a low-odor environment-friendly shaving board, which relates to the field of artificial boards and preparation processes thereof. The invention provides a low-odor environment-friendly shaving board and a preparation process thereof, and the low-odor environment-friendly shaving board has the following beneficial effects: the low-odor environment-friendly shaving board prepared by the invention has the advantages of little odor, high environment-friendly performance and greatly reduced pollution, and meanwhile, through the formula, the hardness of the shaving board is increased, the shaving board is not easy to fall off, and the low-odor environment-friendly shaving board can be widely applied to furniture products and household materials and has obvious economic and social benefits.
Description
Technical Field
The invention relates to the technical field of artificial boards and preparation processes thereof, in particular to a low-odor environment-friendly shaving board and a preparation process thereof.
Background
In recent years, with the continuous improvement of living standard and the continuous enhancement of environmental awareness, more and more consumers are concerned about the odor problem of customized furniture products. The shaving board product is one of the main materials of interior decoration and furniture, and is one of the important sources of the odor of the interior decoration and the furniture, and the problem that the production of the low-odor environment-friendly shaving board is urgently needed to be solved by shaving board production enterprises is solved.
The existing shaving board has the advantages of extremely large generated smell, low environmental protection property, high pollution, low hardness, and automatic scattering and layering after being used for a period of time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-odor environment-friendly shaving board and a preparation process thereof, and solves the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-odor environment-friendly shaving board is mainly prepared from a wood raw material, E0-grade melamine modified urea-formaldehyde resin adhesive, a waterproof agent, a curing agent and a deodorant; the wood raw materials (log, wood chip and sawdust) are matched according to the proportion:
(1) adding ratio of the log: 60 to 100 percent;
(2) the wood chip addition proportion is as follows: 0 to 20 percent;
(3) adding ratio of sawdust: 0 to 20 percent.
Optionally, the addition ratio of the E0-grade melamine modified urea-formaldehyde resin adhesive is as follows:
(1) adding proportion of surface glue solution: 12-14% of the weight of the surface layer dry wood shavings;
(2) adding proportion of core layer glue solution: 7-10% of the weight of the dry wood shavings of the core layer.
Optionally, the addition ratio of the waterproof agent is as follows: 0.2-1.2% of the weight of the dry wood shavings.
Optionally, the curing agent is added in the following proportion: 1.0-4.0% of glue solution.
Optionally, the odor removing agent is added in the following proportion: 1.0-4.0% of glue solution.
A preparation process of a low-odor environment-friendly shaving board mainly comprises raw material acceptance, raw material storage, raw material selection and matching, raw material chipping, raw material slicing, shaving deodorization, shaving drying, shaving sorting, shaving gluing, shaving paving, board blank hot pressing, rough board treatment and sanding packaging.
Optionally, the steps are as follows:
raw material acceptance: inspecting purchased items such as wood raw material tree species, bark content, water content, appearance quality and the like;
(1) the wood raw materials comprise logs, wood chips, sawdust and the like;
(2) when the raw material tree species is detected, wood raw materials with large odor tree species such as pine, camphor wood and the like are rejected;
(3) when the content of the bark of the raw material is detected, the content of the bark is required to be less than 15 percent;
(4) when the water content of the raw material is detected, the water content is required to be less than 50%;
(5) when the appearance quality of the raw materials is checked, the raw materials are required not to be rotten, mildewed and smelly;
(II) raw material storage: stacking the wood raw materials for a period of time and then using the stacked wood raw materials for production and processing;
(1) the stacking time of the logs is not less than 90 days, and the stacking time of bulk materials such as wood chips, sawdust and the like is not less than 15 days;
(2) water accumulation in the raw material storage yard can be avoided, and the drainage and ventilation state is kept;
(3) placing bulk materials such as wood chips, sawdust and the like under a greenhouse for stacking;
(4) bulk materials such as wood chips, sawdust and the like are turned over or spread for airing at regular intervals to emit smell;
(III) raw material selection: raw wood, wood chips, sawdust and other wood raw materials are put into production and used according to a certain proportion;
(IV) chipping raw materials: processing the logs into wood chips by a chipping machine, wherein the specification of the wood chips is preferably 30-70mm long;
(V) slicing raw materials: processing the wood chips into wood shavings by a flaker, wherein the wood shavings with the specification are preferably wood shavings with the thickness of more than 0.4mm and less than 1.0 mm;
(VI) removing the smell of the wood shavings: spraying a deodorant on the wet wood shavings to remove or reduce the peculiar smell of the wood shavings; the smell removing agent is preferably a chemical smell removing agent, and peculiar smell substances in the wood shavings are removed by chemical reactions such as oxidation reaction and the like;
(seventhly) drying the wood shavings: the final water content of dried wood shavings is 1.5-3.0%;
(eight) sorting wood shavings: the wood shavings are divided into: oversized wood shavings, undersized wood shavings, and wood flour;
(1) after removing bark fiber groups from the oversize wood shavings through a shaking screen, grinding the wood shavings in a grinding machine, and then screening the wood shavings in a screening machine again;
(2) sorting the large shavings in an airflow sorting machine, and sending the qualified shavings into a core layer dry shavings storage bin for storage;
(3) feeding the fine wood shavings into a surface layer dry wood shavings bin for storage;
(4) wood powder is discharged from a production line and used as a combustion material of an energy center;
(nine) wood shaving sizing: the surface and core layer dry wood shavings are metered and then continuously and uniformly fed into a surface and core layer wood shavings glue mixer, and simultaneously, the automatically metered surface and core layer glue solution and other additives are respectively injected into the surface and core layer wood shavings glue mixer according to a formula formulated by a production process, and the glue solution is uniformly wrapped on the surfaces of the wood shavings by mutual friction in the glue mixer to form surface and core layer glue-applied wood shavings;
(1) the surface and core layer glue solution is preferably E0-grade melamine modified urea-formaldehyde resin glue, and the content of free formaldehyde is less than or equal to 0.15 percent;
(2) the glue application amount of the surface layer glue solution is 12-14% of the weight of the surface layer dry wood shavings, and the glue application amount of the core layer glue solution is 7-10% of the weight of the core layer dry wood shavings;
(3) the additives comprise a waterproof agent, a curing agent, a deodorant and the like;
(ten) paving the wood shavings: carrying out wood shaving and paving by using an air flow paving machine and a mechanical paving machine to form a gradually-changed composite structure of fine wood shavings, rough wood shavings and fine wood shavings;
(eleven) hot pressing of the plate blank: sending the paved plate blank into a press for hot pressing, wherein the hot pressing adopts a high-temperature and high-pressure process, the hot pressing temperature is 200-;
(twelve) rough board treatment: the continuous rough boards after hot pressing are cut into edges and cut off and then enter a cooling plate turnover machine, and then are stacked and then are transported to an intermediate storage for storage;
(1) cooling and storage environments, preferably air convection circulation, preferably mechanical forced ventilation, to accelerate the heat and odor emission of the board;
(2) the cooling plate turning time is preferably more than 30min, and the intermediate storage time is preferably more than 48 h;
(thirteen) sanding and packaging: the shaving board stored in the middle warehouse is sanded by a sander, sawed into finished boards with specifications, and packaged and warehoused after being checked and stacked by grades.
Optionally, in the step (nine) of the above process;
a waterproof agent, fully refined high-grade industrial paraffin and emulsion thereof, wherein the application amount of the waterproof agent is 0.2-1.2% of the weight of the dry wood shavings;
curing agents, strong acid and weak base salts such as ammonium sulfate, ammonium chloride and the like, wherein the application amount of the curing agents is 1.0-4.0% of the weight of the glue solution;
and the deodorant is a chemical deodorant, and the application amount of the deodorant is 1.0-4.0% of the weight of the glue solution.
The invention provides a low-odor environment-friendly shaving board and a preparation process thereof, and the low-odor environment-friendly shaving board has the following beneficial effects: the low-odor environment-friendly shaving board prepared by the invention has the advantages of little odor, high environment-friendly performance and greatly reduced pollution, and meanwhile, through the formula, the hardness of the shaving board is increased, the shaving board is not easy to fall off, and the low-odor environment-friendly shaving board can be widely applied to furniture products and household materials and has obvious economic and social benefits.
Drawings
FIG. 1 is a schematic view of a process for preparing a low-odor environment-friendly shaving board according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the process flow diagrams in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a technical scheme that: a low-odor environment-friendly shaving board is mainly prepared from a wood raw material, E0-grade melamine modified urea-formaldehyde resin adhesive, a waterproof agent, a curing agent and a deodorant;
the wood raw materials (log, wood chip and sawdust) are matched according to the proportion:
(1) adding ratio of the log: 60 to 100 percent;
(2) the wood chip addition proportion is as follows: 0 to 20 percent;
(3) adding ratio of sawdust: 0 to 20 percent;
e0 grade melamine modified urea-formaldehyde resin adhesive, the addition ratio is:
(1) adding proportion of surface glue solution: 12-14% of the weight of the surface layer dry wood shavings;
(2) adding proportion of core layer glue solution: 7-10% of the weight of the dry wood shavings of the core layer
The addition proportion of the waterproof agent is as follows: 0.2-1.2% of the weight of the dry wood shavings;
curing agent, the adding proportion is as follows: 1.0-4.0% of glue solution;
odor removing agent, adding proportion: 1.0-4.0% of glue solution.
A preparation process of a low-odor environment-friendly shaving board mainly comprises raw material acceptance, raw material storage, raw material selection and matching, raw material chipping, raw material slicing, shaving deodorization, shaving drying, shaving sorting, shaving gluing, shaving paving, board blank hot pressing, rough board treatment and sanding packaging.
The steps are as follows:
raw material acceptance: inspecting purchased items such as wood raw material tree species, bark content, water content, appearance quality and the like;
(1) the wood raw materials comprise logs, wood chips, sawdust and the like;
(2) when the raw material tree species is detected, wood raw materials with large odor tree species such as pine, camphor wood and the like are rejected;
(3) when the content of the bark of the raw material is detected, the content of the bark is required to be less than 15 percent;
(4) when the water content of the raw material is detected, the water content is required to be less than 50%;
(5) when the appearance quality of the raw materials is checked, the raw materials are required not to be rotten, mildewed and smelly;
(II) raw material storage: stacking the wood raw materials for a period of time and then using the stacked wood raw materials for production and processing;
(1) the stacking time of the logs is not less than 90 days, and the stacking time of bulk materials such as wood chips, sawdust and the like is not less than 15 days;
(2) water accumulation in the raw material storage yard can be avoided, and the drainage and ventilation state is kept;
(3) placing bulk materials such as wood chips, sawdust and the like under a greenhouse for stacking;
(4) bulk materials such as wood chips, sawdust and the like are turned over or spread for airing at regular intervals to emit smell;
(III) raw material selection: raw wood, wood chips, sawdust and other wood raw materials are put into production and used according to a certain proportion;
(IV) chipping raw materials: processing the logs into wood chips by a chipping machine, wherein the specification of the wood chips is preferably 30-70mm long;
(V) slicing raw materials: processing the wood chips into wood shavings by a flaker, wherein the wood shavings with the specification are preferably wood shavings with the thickness of more than 0.4mm and less than 1.0 mm;
(VI) removing the smell of the wood shavings: spraying a deodorant on the wet wood shavings to remove or reduce the peculiar smell of the wood shavings;
the smell removing agent is preferably a chemical smell removing agent, and peculiar smell substances in the wood shavings are removed by chemical reactions such as oxidation reaction and the like;
(seventhly) drying the wood shavings: the final water content of dried wood shavings is 1.5-3.0%;
(eight) sorting wood shavings: the wood shavings are divided into: oversized wood shavings, undersized wood shavings, and wood flour;
(1) after removing bark fiber groups from the oversize wood shavings through a shaking screen, grinding the wood shavings in a grinding machine, and then screening the wood shavings in a screening machine again;
(2) sorting the large shavings in an airflow sorting machine, and sending the qualified shavings into a core layer dry shavings storage bin for storage;
(3) feeding the fine wood shavings into a surface layer dry wood shavings bin for storage;
(4) wood powder is discharged from a production line and used as a combustion material of an energy center;
(nine) wood shaving sizing: the dry wood shavings of the surface layer and the core layer are metered and then continuously and uniformly fed into a glue mixer for wood shavings of the surface layer and the core layer, and simultaneously, the glue solution of the surface layer and the core layer which are automatically metered and other additives are respectively injected into the glue mixer for wood shavings of the surface layer and the core layer according to a formula formulated by a production process. The glue solution is evenly wrapped on the surfaces of the wood shavings by mutual friction in a glue mixer to form surface and core layer glue applying wood shavings;
(1) the surface and core layer glue solution is preferably E0-grade melamine modified urea-formaldehyde resin glue, and the content of free formaldehyde is less than or equal to 0.15 percent;
(2) the glue application amount of the surface layer glue solution is 12-14% of the weight of the surface layer dry wood shavings, and the glue application amount of the core layer glue solution is 7-10% of the weight of the core layer dry wood shavings;
(3) the additives comprise a waterproof agent, a curing agent, a deodorant and the like;
(ten) paving the wood shavings: carrying out wood shaving and paving by using an air flow paving machine and a mechanical paving machine to form a gradually-changed composite structure of fine wood shavings, rough wood shavings and fine wood shavings;
(eleven) hot pressing of the plate blank: sending the paved plate blank into a press for hot pressing, wherein the hot pressing adopts a high-temperature high-pressure process;
the hot pressing temperature is 200 ℃ and 250 ℃, the hot pressing pressure is 3.0-4.5MPa, and the hot pressing time is 50-200 s;
(twelve) rough board treatment: the continuous rough boards after hot pressing are cut into edges and cut off and then enter a cooling plate turnover machine, and then are stacked and then are transported to an intermediate storage for storage;
(1) cooling and storage environments, preferably air convection circulation, preferably mechanical forced ventilation, to accelerate the heat and odor emission of the board;
(2) the cooling plate turning time is preferably more than 30min, and the intermediate storage time is preferably more than 48 h;
(thirteen) sanding and packaging: the shaving board stored in the middle warehouse is sanded by a sander, sawed into finished boards with specifications, and packaged and warehoused after being checked and stacked by grades.
In the above process step (nine):
a waterproof agent, fully refined high-grade industrial paraffin and emulsion thereof, wherein the application amount of the waterproof agent is 0.2-1.2% of the weight of the dry wood shavings;
curing agents, strong acid and weak base salts such as ammonium sulfate, ammonium chloride and the like, wherein the application amount of the curing agents is 1.0-4.0% of the weight of the glue solution;
and the deodorant is a chemical deodorant, and the application amount of the deodorant is 1.0-4.0% of the weight of the glue solution.
Examples
Raw material acceptance: inspecting and checking purchased twigs, wood chips and sawdust;
(II) raw material storage: storing the wood raw material through a storage yard;
(III) raw material selection: the raw materials after the raw materials are accepted and stored are proportioned as follows:
25% of eucalyptus twigs;
25% of miscellaneous tree branches;
40% of eucalyptus and miscellaneous wood chips;
10% of pine sawdust;
(IV) chipping raw materials: processing eucalyptus twigs and miscellaneous tree twigs into wood chips by a chipping machine, wherein the length of the wood chips is less than 70 mm;
(V) slicing raw materials: uniformly mixing the wood chips prepared in the step (2), purchased eucalyptus and miscellaneous wood chips, feeding the mixture into a flaker, and processing the mixture into wet wood shavings with the thickness of less than 1.0 mm;
(VI) removing the smell of the wood shavings: screening pine sawdust by a shaking screen, mixing with the wet wood shavings prepared in the step (3), and spraying a deodorant;
(seventhly) drying the wood shavings: conveying the wood shavings treated in the step (4) into a dryer for wood shavings drying, and controlling the final water content of the wood shavings to be 2.0%;
(eight) sorting wood shavings: the wood shavings are divided into: oversized wood shavings, undersized wood shavings, and wood flour;
(nine) wood shaving sizing: applying glue and additives to the surface layer and the core layer dry wood shavings;
surface layer wood shaving sizing scheme: firstly, urea-formaldehyde resin adhesive is selected as glue solution, and the glue application amount is 13.5%;
secondly, the waterproof agent is fully refined 56# paraffin, and the addition amount of the waterproof agent is 0.4 percent of the weight of the dry wood shavings;
③ the smell removing agent is a chemical smell removing agent, the addition amount is 1.0 percent of the glue application amount;
core layer wood shavings glueing scheme: firstly, urea-formaldehyde resin adhesive is selected as glue solution, and the glue application amount is 8.5%;
secondly, the waterproof agent is fully refined 56# paraffin, and the addition amount of the waterproof agent is 0.6 percent of the weight of the dry wood shavings;
③ the curing agent is ammonium sulfate, the addition amount is 3.5 percent of the glue application amount;
(ten) paving the wood shavings: carrying out wood shaving and paving by using an air flow paving machine and a mechanical paving machine to form a gradually-changed composite structure of fine wood shavings, rough wood shavings and fine wood shavings;
(eleven) hot pressing of the plate blank: sending the paved plate blank into a press for hot pressing, wherein the hot pressing temperature is 250 ℃, the hot pressing pressure is 4.0MPa, and the hot pressing time is 100 s;
(twelve) rough board treatment: cutting edges and cutting off the continuous rough boards after hot pressing, then feeding the continuous rough boards into a cooling plate turnover machine for cooling for 30min, stacking the continuous rough boards, and then transferring the continuous rough boards to an intermediate storage for 48 h;
(thirteen) sanding and packaging: the shaving board stored in the middle warehouse is sanded by a sander, sawed into finished boards with specifications, and packaged and warehoused after being checked and stacked by grades.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A low-odor environment-friendly shaving board is mainly prepared from a wood raw material, E0-grade melamine modified urea-formaldehyde resin adhesive, a waterproof agent, a curing agent and a deodorant; the wood raw materials (log, wood chip and sawdust) are matched according to the proportion: (1) adding ratio of the log: 60 to 100 percent; (2) the wood chip addition proportion is as follows: 0 to 20 percent; (3) adding ratio of sawdust: 0 to 20 percent.
2. The low-odor environment-friendly particle board and the preparation process thereof according to claim 1, characterized in that: the addition proportion of the E0-grade melamine modified urea-formaldehyde resin adhesive is as follows: (1) adding proportion of surface glue solution: 12-14% of the weight of the surface layer dry wood shavings; (2) adding proportion of core layer glue solution: 7-10% of the weight of the dry wood shavings of the core layer.
3. The low-odor environment-friendly particle board and the preparation process thereof according to claim 1, characterized in that: the addition proportion of the waterproof agent is as follows: 0.2-1.2% of the weight of the dry wood shavings.
4. The low-odor environment-friendly particle board and the preparation process thereof according to claim 1, characterized in that: the curing agent is added in the following proportion: 1.0-4.0% of glue solution.
5. The low-odor environment-friendly particle board and the preparation process thereof according to claim 1, characterized in that: the addition ratio of the smell removing agent is as follows: 1.0-4.0% of glue solution.
6. A preparation process of a low-odor environment-friendly shaving board is characterized by comprising the following steps of: the preparation process mainly comprises the steps of raw material inspection and acceptance, raw material storage, raw material selection and matching, raw material chipping, raw material slicing, wood shaving deodorization, wood shaving drying, wood shaving sorting, wood shaving glue applying, wood shaving paving, plate blank hot pressing, rough board treatment and sanding packaging.
7. The low-odor environment-friendly particle board and the preparation process thereof as claimed in claim 6, wherein: the steps are as follows: raw material acceptance: inspecting purchased items such as wood raw material tree species, bark content, water content, appearance quality and the like; (1) the wood raw materials comprise logs, wood chips, sawdust and the like; (2) when the raw material tree species is detected, wood raw materials with large odor tree species such as pine, camphor wood and the like are rejected; (3) when the content of the bark of the raw material is detected, the content of the bark is required to be less than 15 percent; (4) when the water content of the raw material is detected, the water content is required to be less than 50%; (5) when the appearance quality of the raw materials is checked, the raw materials are required not to be rotten, mildewed and smelly; (II) raw material storage: stacking the wood raw materials for a period of time and then using the stacked wood raw materials for production and processing; (1) the stacking time of the logs is not less than 90 days, and the stacking time of bulk materials such as wood chips, sawdust and the like is not less than 15 days; (2) water accumulation in the raw material storage yard can be avoided, and the drainage and ventilation state is kept; (3) placing bulk materials such as wood chips, sawdust and the like under a greenhouse for stacking; (4) bulk materials such as wood chips, sawdust and the like are turned over or spread for airing at regular intervals to emit smell; (III) raw material selection: raw wood, wood chips, sawdust and other wood raw materials are put into production and used according to a certain proportion; (IV) chipping raw materials: processing the log into wood chips by a chipping machine; the specification of the wood chips is preferably 30-70mm long wood chips; (V) slicing raw materials: processing the wood chips into wood shavings by a flaker; the wood shavings are preferably wood shavings with the thickness of more than 0.4mm and less than 1.0mm in specification; (VI) removing the smell of the wood shavings: spraying a deodorant on the wet wood shavings to remove or reduce the peculiar smell of the wood shavings; the smell removing agent is preferably a chemical smell removing agent, and peculiar smell substances in the wood shavings are removed by chemical reactions such as oxidation reaction and the like; (seventhly) drying the wood shavings: the final water content of dried wood shavings is 1.5-3.0%; (eight) sorting wood shavings: the wood shavings are divided into: oversized wood shavings, undersized wood shavings, and wood flour; (1) after removing bark fiber groups from the oversize wood shavings through a shaking screen, grinding the wood shavings in a grinding machine, and then screening the wood shavings in a screening machine again; (2) sorting the large shavings in an airflow sorting machine, and sending the qualified shavings into a core layer dry shavings storage bin for storage; (3) feeding the fine wood shavings into a surface layer dry wood shavings bin for storage; (4) wood powder is discharged from a production line and used as a combustion material of an energy center; (nine) wood shaving sizing: the dry wood shavings of the surface layer and the core layer are metered and then continuously and uniformly fed into a glue mixer for the wood shavings of the surface layer and the core layer, and simultaneously, the glue solution of the surface layer and the core layer which are automatically metered and other additives are respectively injected into the glue mixer for the wood shavings of the surface layer and the core layer according to a formula formulated by a production process; the glue solution is evenly wrapped on the surfaces of the wood shavings by mutual friction in a glue mixer to form surface and core layer glue applying wood shavings; (1) the surface and core layer glue solution is preferably E0-grade melamine modified urea-formaldehyde resin glue, and the content of free formaldehyde is less than or equal to 0.15 percent; (2) the glue application amount of the surface layer glue solution is 12-14% of the weight of the surface layer dry wood shavings, and the glue application amount of the core layer glue solution is 7-10% of the weight of the core layer dry wood shavings; (3) the additives comprise a waterproof agent, a curing agent, a deodorant and the like; (ten) paving the wood shavings: carrying out wood shaving and paving by using an air flow paving machine and a mechanical paving machine to form a gradually-changed composite structure of fine wood shavings, rough wood shavings and fine wood shavings; (eleven) hot pressing of the plate blank: sending the paved plate blank into a press for hot pressing, wherein the hot pressing adopts a high-temperature high-pressure process; the hot pressing temperature is 200 ℃ and 250 ℃, the hot pressing pressure is 3.0-4.5MPa, and the hot pressing time is 50-200 s; (twelve) rough board treatment: the continuous rough boards after hot pressing are cut into edges and cut off and then enter a cooling plate turnover machine, and then are stacked and then are transported to an intermediate storage for storage; (1) cooling and storage environments, preferably air convection circulation, preferably mechanical forced ventilation, to accelerate the heat and odor emission of the board; (2) the cooling plate turning time is preferably more than 30min, and the intermediate storage time is preferably more than 48 h; (thirteen) sanding and packaging: the shaving board stored in the middle warehouse is sanded by a sander, sawed into finished boards with specifications, and packaged and warehoused after being checked and stacked by grades.
8. The low-odor environment-friendly particle board and the preparation process thereof as claimed in claim 7, wherein: in the above process step (nine); a waterproof agent, fully refined high-grade industrial paraffin and emulsion thereof, wherein the application amount of the waterproof agent is 0.2-1.2% of the weight of the dry wood shavings; curing agents, strong acid and weak base salts such as ammonium sulfate, ammonium chloride and the like, wherein the application amount of the curing agents is 1.0-4.0% of the weight of the glue solution; and the deodorant is a chemical deodorant, and the application amount of the deodorant is 1.0-4.0% of the weight of the glue solution.
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