阅读说明：本技术 一种内设真空管的中空微球刨花板 (Interior cavity microballon shaving board of establishing vacuum tube ) 是由 符连其 王金龙 于文吉 张雅慧 李长贵 何明明 祝荣先 于 2021-08-05 设计创作，主要内容包括：本发明提供一种内设真空管的中空微球刨花板。所述内设真空管的中空微球刨花板,包括以下重量份原料：木质原料55-80份、竹纤维原料30-50份、大豆粉20-30份、蛋白粉12-17份、钙粉8-12份。本发明提供一种内设真空管的中空微球刨花板,通过木质原料、竹纤维原料、大豆粉、蛋白粉以及钙粉作为主要原料,将多种原料混合使用,利用竹纤维的韧性改善刨花板整体的抗变形能力,而使用大豆粉、蛋白粉能够增加内部连接的稳定性,填补各原料之间的空隙,降低内部密度,进而提高刨花板内外防水、防潮效果,能够更好的适应潮湿环境,而使用钙粉则可以增加整体强度,进一步提升抗压能力,该刨花板减少了化学辅助剂的使用,避免产生的有害气体对人们造成伤害。(The invention provides a hollow microsphere shaving board internally provided with vacuum tubes. The hollow microsphere shaving board internally provided with the vacuum tubes comprises the following raw materials in parts by weight: 55-80 parts of wood raw material, 30-50 parts of bamboo fiber raw material, 20-30 parts of soybean meal, 12-17 parts of protein powder and 8-12 parts of calcium powder. The invention provides a hollow microsphere shaving board internally provided with a vacuum tube, which is characterized in that a wood raw material, a bamboo fiber raw material, soybean meal, protein powder and calcium powder are used as main raw materials, a plurality of raw materials are mixed for use, the toughness of bamboo fibers is utilized to improve the integral deformation resistance of the shaving board, the soybean meal and the protein powder can increase the stability of internal connection, fill gaps among the raw materials and reduce the internal density, further improve the internal and external waterproof and moistureproof effects of the shaving board, and can better adapt to a humid environment, the calcium powder can increase the integral strength and further improve the compression resistance, the use of chemical auxiliary agents is reduced, and the harm of generated harmful gas to people is avoided.)

1. The hollow microsphere shaving board internally provided with the vacuum tubes is characterized by comprising the following raw materials in parts by weight:

55-80 parts of wood raw material, 30-50 parts of bamboo fiber raw material, 20-30 parts of soybean powder, 12-17 parts of protein powder, 8-12 parts of calcium powder, 10-25 parts of hollow microspheres, 8-15 parts of vacuum tube, 5-20 parts of adhesive, 4-7 parts of water-based polyether polyurethane, 0.05-0.2 part of water-resistant agent and 2-5 parts of curing agent.

2. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight:

55 parts of wood raw material, 30 parts of bamboo fiber raw material, 20 parts of soybean meal, 12 parts of protein powder, 8 parts of calcium powder, 10 parts of hollow microspheres, 8 parts of vacuum tube, 5 parts of adhesive, 4 parts of waterborne polyether polyurethane, 0.05 part of water-resistant agent and 2 parts of curing agent.

3. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 1, wherein the wood raw material, the bamboo fiber raw material, the soybean powder, the protein powder, the calcium powder and the hollow microsphere together form a raw material layer, the wood raw material is wood leftover materials and waste materials, and the bamboo fiber raw material is bamboo leftover materials and sawdust.

4. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 1, wherein the protein powder is animal collagen, and the protein content of the protein powder is greater than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

5. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 1, wherein the molecular weight of the waterborne polyether polyurethane is 15000-.

6. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 1, wherein the adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to a mass ratio of 6:4: 1.

7. The hollow microsphere particle board with the built-in vacuum tubes as claimed in claim 1, wherein the preparation method of the hollow microsphere particle board with the built-in vacuum tubes comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials to a wet wood shaving bin through a conveyer for storage for 15-30 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials to a dry wood shaving bin for excessive storage for 25-30 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 10-20 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 30-40 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

8. The hollow microsphere particle board with the built-in vacuum tube as claimed in claim 7, wherein the moisture content of the dried wood particles in S2 is controlled below 8%, the temperature of the hot pressing equipment in S4 is 180 ℃ and 200 ℃, and the pressing time is 5-15 minutes.

9. The hollow microsphere shaving board with the built-in vacuum tube according to claim 7, wherein the rotor type dryer is used for drying the shavings in the S2, the dryer comprises a body, a blowing structure is arranged on the body, the blowing structure comprises a hot air blower, a conveying pipeline, two sealing boxes, a fan and a protective net, one end of the conveying pipeline is connected to the output end of the hot air blower, two ends of the conveying pipeline are respectively communicated with the two sealing boxes, the sealing boxes are fixed on one side of the body, the fan is arranged in the sealing boxes, and the protective net is fixed on the body.

10. The hollow microsphere shaving board with the built-in vacuum tube as claimed in claim 9, wherein a supporting seat is fixedly connected to the bottom of the machine body, the air heater is fixed on the supporting seat, and the machine body is provided with a stirring structure, wherein the stirring structure comprises a driving motor and a stirring rotating member.

Technical Field

The invention relates to the field of shaving boards, in particular to a hollow microsphere shaving board internally provided with vacuum tubes.

Background

The particle board is made up of wood particles, wood dust, hardening agent, water-proofing agent, adhesive, etc. through cutting wood particles, drying, mixing with adhesive, hardening agent and water-proofing agent, and pressing. The particle board is also called particle board, but is not the same kind of board as the solid wood particle board, and the solid wood particle board is only similar to the particle board in processing technology, but far higher in quality than the particle board.

Along with the shaving board manufacturing technology is continuously developed, the shaving board has more and more comprehensive performance, can better meet the use requirements of building construction, has various types and different functions, and is suitable for different use environments.

Among the prior art, in order to satisfy the high strength and inhale the thermal-insulated demand of sound, the hollow microsphere shaving board of establishing the vacuum tube in having appeared, high strength has simultaneously, inhale the sound, thermal-insulated multinomial superior performance, but there is certain not enough, if this type of shaving board adopts single wooden raw materials more, and wooden raw materials is wet easily in humid environment for a long time, and then lead to the shaving board to go mildy, the intensity reduces scheduling problem, though can play dampproofing and waterproofing's effect through the auxiliary agent, too much use the auxiliary agent of chemistry class, can lead to the shaving board to produce some harmful gas, and gaseous being difficult to get rid of fast, and to using the shaving board at indoor building, the harmful gas of production causes certain harm to people's the healthy.

Therefore, there is a need to provide a hollow microsphere particle board with built-in vacuum tubes to solve the above technical problems.

Disclosure of Invention

The invention provides a hollow microsphere shaving board internally provided with vacuum tubes, which solves the problem that the hollow microsphere shaving board internally provided with the vacuum tubes is easy to damp when being in a humid environment for a long time.

In order to solve the technical problems, the hollow microsphere shaving board with the built-in vacuum tubes provided by the invention comprises the following raw materials in parts by weight:

55-80 parts of wood raw material, 30-50 parts of bamboo fiber raw material, 20-30 parts of soybean powder, 12-17 parts of protein powder, 8-12 parts of calcium powder, 10-25 parts of hollow microspheres, 8-15 parts of vacuum tube, 5-20 parts of adhesive, 4-7 parts of water-based polyether polyurethane, 0.05-0.2 part of water-resistant agent and 2-5 parts of curing agent.

Preferably, the feed comprises the following raw materials in parts by weight:

55 parts of wood raw material, 30 parts of bamboo fiber raw material, 20 parts of soybean meal, 12 parts of protein powder, 8 parts of calcium powder, 10 parts of hollow microspheres, 8 parts of vacuum tube, 5 parts of adhesive, 4 parts of waterborne polyether polyurethane, 0.05 part of water-resistant agent and 2 parts of curing agent.

Preferably, the raw material layer is formed by the wood raw material, the bamboo fiber raw material, the soybean flour, the protein powder, the calcium powder and the hollow microspheres, the wood raw material is wood leftover materials and waste materials, and the bamboo fiber raw material is bamboo waste materials and leftover materials sawdust.

Preferably, the protein powder is animal collagen, the protein content of the protein powder is more than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

Preferably, the molecular weight of the waterborne polyether polyurethane is 15000-20000g/mol, and the solid content of the waterborne polyether polyurethane is more than or equal to 50%.

Preferably, the adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to the mass ratio of 6:4: 1.

Preferably, the preparation method of the hollow microsphere particle board with the built-in vacuum tube comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials to a wet wood shaving bin through a conveyer for storage for 15-30 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials to a dry wood shaving bin for excessive storage for 25-30 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 10-20 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 30-40 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

Preferably, the moisture content of the dried wood shaving material in the S2 is controlled to be below 8%, the temperature of the hot pressing equipment in the S4 is 180-200 ℃, and the pressing time is 5-15 minutes.

The preferable rotor type desiccator that is used for carry out the drying to the wood shavings raw materials in S2, the desiccator includes the organism, be provided with on the organism and sweep the structure, it includes air heater, pipeline, two seal box, fan and protection network to sweep the structure, pipeline 'S one end connect in the output of air heater, just pipeline' S both ends respectively with two the seal box intercommunication, the seal box is fixed in one side of organism, the fan set up in the seal box, the protection network is fixed in on the organism.

Preferably, the bottom of the machine body is fixedly connected with a supporting seat, the air heater is fixed on the supporting seat, a stirring structure is arranged on the machine body, and the stirring structure comprises a driving motor and a stirring rotating piece.

Compared with the related art, the hollow microsphere shaving board with the built-in vacuum tubes provided by the invention has the following beneficial effects:

the invention provides a hollow microsphere shaving board with a built-in vacuum tube, which uses wood raw materials, bamboo fiber raw materials, soybean flour, protein powder and calcium powder as main raw materials, mixes a plurality of raw materials for use, improves the integral anti-deformation capability of the shaving board by utilizing the toughness of the bamboo fiber, uses the soybean flour and the protein powder to increase the stability of internal connection, fills gaps among the raw materials and reduces the internal density, thereby improving the internal and external waterproof and moistureproof effects of the shaving board, can better adapt to a humid environment, can increase the integral strength by using the calcium powder and further improve the pressure resistance, in addition, in the preparation process, the moisture in the raw materials can be controlled below 8 percent by respectively carrying out wet storage and dry storage on the raw materials, effectively reduces the internal moisture, greatly reduces the moisture content of the prepared shaving board and further increases the integral anti-mildew effect, and then make the use of chemical auxiliary agent significantly reduce, avoid the harmful gas that produces to cause the injury to people, and use through multiple raw materials mixture, cooperate a little waterborne polyether polyurethane, water-fast agent and curing agent to constitute the shaving board of the environment-friendly that has waterproof, dampproofing effect height, and high strength, high tenacity, different service environment of adaptation that can be fine, better satisfy people's user demand.

Drawings

FIG. 1 is a flow chart of the preparation of a hollow microsphere shaving board with a built-in vacuum tube according to the present invention;

FIG. 2 is a schematic structural diagram of a rotor type dryer provided by the present invention;

fig. 3 is a schematic structural view of the interior of the housing shown in fig. 2.

Reference numerals in the figures

1. A machine body, 2, a blowing structure;

21. the air heater comprises an air heater 22, a conveying pipeline 23, a sealing box 24, a fan 25 and a protective net;

3. a supporting seat 4 and a stirring structure;

41. and a driving motor 42 for stirring the rotating member.

Detailed Description

First embodiment

The invention is further described with reference to the following figures and embodiments. Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a flow chart illustrating a process for manufacturing a hollow microsphere particle board with vacuum tubes therein according to the present invention;

FIG. 2 is a schematic structural diagram of a rotor type dryer provided by the present invention; fig. 3 is a schematic structural view of the interior of the housing shown in fig. 2. The hollow microsphere shaving board internally provided with the vacuum tubes comprises the following raw materials in parts by weight:

55 parts of wood raw material, 30 parts of bamboo fiber raw material, 20 parts of soybean meal, 12 parts of protein powder, 8 parts of calcium powder, 10 parts of hollow microspheres, 8 parts of vacuum tube, 5 parts of adhesive, 4 parts of waterborne polyether polyurethane, 0.05 part of water-resistant agent and 2 parts of curing agent.

The wood-based composite board comprises a wood raw material layer, a bamboo fiber raw material layer, a soybean powder layer, a protein powder layer, a calcium powder layer and hollow microspheres, wherein the wood raw material layer comprises wood leftover materials and waste materials, and the bamboo fiber raw material layer comprises bamboo waste materials and leftover material sawdust.

The protein powder is animal collagen, the protein content of the protein powder is more than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

The molecular weight of the waterborne polyether polyurethane is 15000g/mol, and the solid content of the waterborne polyether polyurethane is more than or equal to 50%.

The adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to the mass ratio of 6:4: 1.

The preparation method of the hollow microsphere shaving board internally provided with the vacuum tubes comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials into a wet wood shaving bin through a conveyer for storage for 15 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials into a dry wood shaving bin for excessive storage for 25 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 10 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 30 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

The moisture content of the dried wood shaving material in the S2 is controlled to be below 8%, the temperature of the hot pressing equipment in the S4 is 180 ℃, and the pressing time is 5 minutes.

The rotor type dryer used for drying the shaving raw materials in the S2 comprises a dryer body 1, wherein a purging structure 2 is arranged on the dryer body 1, the purging structure 2 comprises an air heater 21, a conveying pipeline 22, two seal boxes 23, a fan 24 and a protective net 25, one end of the conveying pipeline 22 is connected to the output end of the air heater 21, two ends of the conveying pipeline 22 are respectively communicated with the two seal boxes 23, the seal boxes 23 are fixed on one side of the dryer body 1, the fan 24 is arranged in the seal boxes 23, and the protective net 25 is fixed on the dryer body 1.

The two seal boxes 23 are respectively positioned at the left side and the right side of the machine body 1, the fan 24 is arranged inside the seal boxes 23 to form a closed space, the rotation of the fan is controlled by an external control panel, the air heater 21 is arranged on the supporting seat 3 and can generate hot air during operation, the two seal boxes 23 are connected with the air heater 21 through the conveying pipeline 22, the hot air generated by the air heater can flow into the two seal boxes 23, air inlets are formed in the left side and the right side of the machine body 1 and correspond to the seal boxes 23, the protective screen 25 is arranged on the air inlets and is used for isolating protective raw materials inside the machine body 1 and ensuring that the hot air can enter the machine body through the protective screen 25 to dry the shaving raw materials, and the fan 24 is arranged to accelerate the flow of the hot air through the rotation of the fan 24 after the conveying pipeline 22 guides the hot air into the seal boxes 23, enter into organism 1's inside through filter screen 25 fast, the wind-force of while production can blow the wood shavings raw materials that adsorb on filter screen 25, avoid adsorbing on filter screen 25, lead to hot-blast can not get into organism 1 inside, should sweep structure 2 through setting up, mainly used sweeps the wood shavings raw materials of organism 1 inside, and then reach dry effect, wherein through setting up two seal box 23 simultaneously, fan 24, can realize sweeping simultaneously in two positions, traditional single position mode of sweeping has been changed, make drying rate faster, and shorten drying time, better satisfy the dry demand to the wood shavings raw materials.

The bottom fixedly connected with supporting seat 3 of organism 1, air heater 21 is fixed in on the supporting seat 3, be provided with stirring structure 4 on the organism 1, stirring structure 4 includes driving motor 41 and stirring commentaries on classics piece 42.

Stirring structure 4 mainly used rotates the wood shavings raw materials of organism 1 inside for wood shavings raw materials can be even receive hot-blast sweeping, is provided with feed inlet and gas vent respectively on the left side and the right side at organism 1 top simultaneously, and one is used for feeding in raw material to organism 1 inside, volatile gas when being used for the exhaust drying.

Second embodiment

Based on the hollow microsphere particle board with the built-in vacuum tubes in the first embodiment of the invention, the second embodiment of the invention provides another hollow microsphere particle board with built-in vacuum tubes, wherein the second embodiment does not hinder the independent implementation of the technical scheme of the first embodiment.

Specifically, the difference of the invention in providing another hollow microsphere shaving board with built-in vacuum tubes lies in that: the feed comprises the following raw materials in parts by weight:

80 parts of wood raw material, 50 parts of bamboo fiber raw material, 30 parts of soybean meal, 17 parts of protein powder, 12 parts of calcium powder, 25 parts of hollow microspheres, 15 parts of vacuum tube, 20 parts of adhesive, 7 parts of waterborne polyether polyurethane, 0.2 part of water-resistant agent and 5 parts of curing agent.

The wood-based composite board comprises a wood raw material layer, a bamboo fiber raw material layer, a soybean powder layer, a protein powder layer, a calcium powder layer and hollow microspheres, wherein the wood raw material layer comprises wood leftover materials and waste materials, and the bamboo fiber raw material layer comprises bamboo waste materials and leftover material sawdust.

The protein powder is animal collagen, the protein content of the protein powder is more than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

The molecular weight of the waterborne polyether polyurethane is 20000g/mol, and the solid content of the waterborne polyether polyurethane is more than or equal to 50%.

The adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to the mass ratio of 6:4: 1.

The preparation method of the hollow microsphere shaving board internally provided with the vacuum tubes comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials into a wet wood shaving bin through a conveyer for storage for 30 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials into a dry wood shaving bin for excessive storage for 30 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 20 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 40 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

The moisture content of the dried wood shaving material in the S2 is controlled to be below 8%, the temperature of the hot pressing equipment in the S4 is 200 ℃, and the pressing time is 15 minutes.

Third embodiment

Based on the hollow microsphere particle board with the built-in vacuum tubes in the first embodiment of the invention, the second embodiment of the invention provides another hollow microsphere particle board with built-in vacuum tubes, wherein the second embodiment does not hinder the independent implementation of the technical scheme of the first embodiment.

Specifically, the difference of the invention in providing another hollow microsphere shaving board with built-in vacuum tubes lies in that: the feed comprises the following raw materials in parts by weight:

70 parts of wood raw material, 40 parts of bamboo fiber raw material, 25 parts of soybean meal, 15 parts of protein powder, 10 parts of calcium powder, 15 parts of hollow microspheres, 10 parts of vacuum tube, 10 parts of adhesive, 5 parts of waterborne polyether polyurethane, 0.1 part of water-resistant agent and 3 parts of curing agent.

The wood-based composite board comprises a wood raw material layer, a bamboo fiber raw material layer, a soybean powder layer, a protein powder layer, a calcium powder layer and hollow microspheres, wherein the wood raw material layer comprises wood leftover materials and waste materials, and the bamboo fiber raw material layer comprises bamboo waste materials and leftover material sawdust.

The protein powder is animal collagen, the protein content of the protein powder is more than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

The molecular weight of the waterborne polyether polyurethane is 15000g/mol, and the solid content of the waterborne polyether polyurethane is more than or equal to 50%.

The adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to the mass ratio of 6:4: 1.

The preparation method of the hollow microsphere shaving board internally provided with the vacuum tubes comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials into a wet wood shaving bin through a conveyer for storage for 15 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials into a dry wood shaving bin for excessive storage for 25 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 10 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 30 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

The moisture content of the dried wood shaving material in the S2 is controlled to be below 8%, the temperature of the hot pressing equipment in the S4 is 180 ℃, and the pressing time is 5 minutes.

Fourth embodiment

Based on the hollow microsphere particle board with the built-in vacuum tubes in the first embodiment of the invention, the second embodiment of the invention provides another hollow microsphere particle board with built-in vacuum tubes, wherein the second embodiment does not hinder the independent implementation of the technical scheme of the first embodiment.

Specifically, the difference of the invention in providing another hollow microsphere shaving board with built-in vacuum tubes lies in that: the feed comprises the following raw materials in parts by weight:

80 parts of wood raw material, 30 parts of bamboo fiber raw material, 30 parts of soybean meal, 12 parts of protein powder, 12 parts of calcium powder, 10 parts of hollow microspheres, 15 parts of vacuum tube, 20 parts of adhesive, 4 parts of waterborne polyether polyurethane, 0.2 part of water-resistant agent and 2 parts of curing agent.

The wood-based composite board comprises a wood raw material layer, a bamboo fiber raw material layer, a soybean powder layer, a protein powder layer, a calcium powder layer and hollow microspheres, wherein the wood raw material layer comprises wood leftover materials and waste materials, and the bamboo fiber raw material layer comprises bamboo waste materials and leftover material sawdust.

The protein powder is animal collagen, the protein content of the protein powder is more than or equal to 93%, the ash content is less than or equal to 6%, and the water content is less than 4%.

The molecular weight of the waterborne polyether polyurethane is 20000g/mol, and the solid content of the waterborne polyether polyurethane is more than or equal to 50%.

The adhesive is prepared by mixing phenol, formaldehyde and sodium hydroxide according to the mass ratio of 6:4: 1.

The preparation method of the hollow microsphere shaving board internally provided with the vacuum tubes comprises the following steps:

s1, processing raw materials: shaving the wood raw material and the leftover material in the bamboo fiber raw material by using a processing tool, mixing the prepared shavings together, and then screening by using screening equipment to obtain a shavings raw material;

s2, raw material storage treatment: conveying the prepared wood shaving raw materials into a wet wood shaving bin through a conveyer for storage for 15 days, then putting the wood shaving raw materials into a rotor type wood shaving dryer for drying treatment, and conveying the wood shaving raw materials into a dry wood shaving bin for excessive storage for 30 days after drying is finished to obtain dry wood shaving materials;

s3, mixing the raw materials: sequentially adding the dry shaving material, the soybean meal, the protein powder, the calcium powder and the hollow microspheres into a stirrer for mixing, firstly pre-stirring for 20 minutes, then adding the adhesive, the water-based polyether polyurethane, the water-resistant agent and the curing agent, continuously stirring for 30 minutes, and taking out to obtain a mixture;

s4, preparing a coarse slab: uniformly placing vacuum tubes in a mold, adding half of the mixture into the mold, performing primary pressing on the mold by using an extrusion device to obtain a primary plate blank, turning over the primary plate blank, uniformly paving the other half of the mixture on the other side of the vacuum tubes, performing secondary pressing on the mold by using the extrusion device, taking out the plate blank, removing leftover materials on the outer side, and finally obtaining a coarse plate blank;

s5, hot pressing: putting the rough plate blank into hot-pressing equipment, carrying out hot-pressing forming treatment, then putting the formed plate into a cooling machine, carrying out cooling treatment, and finally trimming the peripheral side of the cooled plate to obtain a semi-finished plate;

s6, post-processing: and placing the semi-finished plate in sanding equipment, sanding, and then cutting the plate into required sizes by using cutting equipment according to production requirements to finally obtain the required hollow microsphere shaving board internally provided with the vacuum tube.

The moisture content of the dried wood shaving material in the S2 is controlled to be below 8%, the temperature of the hot pressing equipment in the S4 is 180 ℃, and the pressing time is 15 minutes.

The strength, toughness, water-proof effect, mold-proof effect, and harmful gas concentration of the hollow microsphere particle boards with built-in vacuum tubes prepared in examples 1 to 4 were counted, and for comparison, the data of all examples were normalized based on the data of example 1.

TABLE 1

	Strength of	Toughness of	Water-proof effect	Mildew-proof effect	Concentration of harmful gas
						Example 1	101％	52％	Is preferably used	In general	0.25mg/m3
Example 2	99.8％	50％	Is preferably used	Is preferably used	0.36mg/m3
						Example 3	102％	49％	Is excellent in	In general	0.47mg/m3
Example 4	105％	55％	Is excellent in	Is preferably used	0.22mg/m3

As can be seen from the above table, the strength, toughness, waterproof effect, mildew-proof effect, and harmful gas concentration of the hollow microsphere shaving board with built-in vacuum tubes prepared in example 4 are all better than those of other examples, so that the hollow microsphere shaving board with built-in vacuum tubes prepared by the method for preparing a hollow microsphere shaving board with built-in vacuum tubes provided in example 4 is the best choice.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.