CN107127841A - A kind of manufacturing process of environmental protection flame retardant stalk board - Google Patents
A kind of manufacturing process of environmental protection flame retardant stalk board Download PDFInfo
- Publication number
- CN107127841A CN107127841A CN201710450729.2A CN201710450729A CN107127841A CN 107127841 A CN107127841 A CN 107127841A CN 201710450729 A CN201710450729 A CN 201710450729A CN 107127841 A CN107127841 A CN 107127841A
- Authority
- CN
- China
- Prior art keywords
- stalk
- environmental protection
- flame retardant
- protection flame
- sandwich layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- B27D1/06—Manufacture of central layers; Form of central layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
-
- 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
-
- 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
- B27N3/14—Distributing or orienting the particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
Abstract
The invention discloses a kind of manufacturing process of environmental protection flame retardant stalk board, comprise the following steps：(1) agricultural crop straw removal of impurities is crushed；(2) metering, distributing, packaging；(3) mat formation into mould；(4) pre-molding；(5) sizing cold pressing；(6) locked mode；(7) the maintenance demoulding；(8) dry；(9) semi-finished product saw side；(10) sanding；(11) packaging and storage；The manufacturing process uses normal temperature cold press technique, and method is simple, it is not necessary to be heated at high temperature, gluing can be completed under normal temperature state, only slab is dried using microwave technology in dry link, solid fuel is not consumed, factory does not have chimney, whole process environmental protection；In addition, the present invention is using stalk as primary raw material, it is equipped with the inorganic combustion inhibitor and inorganic binder of excellent performance, the stalk board obtained more than 1200 DEG C at a high temperature of it is fire-retardant be not carbonized, it is indeformable, produced without harmful smoke and gas body, and high temperature not heat conduction, chance water do not expand, and combination property is very excellent.
Description
Technical field
The invention belongs to man-made board technology field, and in particular to a kind of environmental protection flame retardant straw manufactured by primary raw material of stalk
The manufacturing process of stalk plate.
Background technology
With the development of the social economy, requirement of people's life to quality of life also more and more higher, at present, in building dress
The industries such as decorations, furniture making often use multi-layer woodboard, core-board and medium-density plate, in use, this
Three kinds of dalles all have the shortcomings that common：Do not prevent fires, with substantial amounts of harmful substance, seriously endanger the body of user
Health is, it is necessary to consume substantial amounts of timber.
Although although having miscellaneous fire-proof plate (such as on the market at present：Plasterboard, cement plate, magnesium oxide plate, silicic acid
Calcium plate etc.), but its finished product is all a kind of material, and in other words, its finished product does not all make decoration processing to its surface in the fabrication process,
Such as plasterboard or cement plate therein are all after the completion of construction, then are coated with cement paint on its surface or paste with wallpaper or paste with it
Its fancy veneer is (such as：Natural thin wood chip), thus except cause live decoration construction it is time-consuming and inconvenient in addition to, and coating or patch
The smell that mixture residues in interior will also cause the environmental pollution at finishing scene, and influence health, in addition the usual grade table
The water proofing property of face ornament materials is not good, and is easy to peel off because moving back glue in the future when through one section.Especially, usual grade surface
The fire resistance of ornament materials is not good, once meeting burning things which may cause a fire disaster can also produce thick smoke and toxic gas, and harms personnel escape.
Current foreign study and it is most widely used be wheat straw and rice-straw based board.Originally the life of traditional timber particieboard is used
Production. art, using UF (Lauxite) production of resins stalk board, but because crushed straw aggregate surface has wax layer influence gluing, leads
Cause plate property very poor.As MDI (carbimide) resin is applied to artificial board of straw field, although cost is higher, but it is glued
Problem has obtained preferable solution, and plate property has also obtained large increase, nor there are problems that Form aldehyde release, for ring
The consideration of guarantor, stalk board is paid attention to by each government of developed country.Nineteen ninety-five primeboard, company set up in the U.S., produced stalk straw per year
The m of stalk plate 5.3 ten thousand3；Canada in 1988 has built up in the world maximum lsoboard companies of wheat straw board factory, and annual capacity is up to 230,000 m3。
By 1999, at least 12 stalk board factories of north America region planned to go into operation in 2000-2002, but due to these national stalks
Compiling costs and cost of investment are too high, compared with timber wood-based plate, stalk board too late wooden wood-based plate in terms of cost control,
By 2001 to current, some periods are gone in North America, and at least 8 straw-based panel factories close down.In production equipment side
Face, external several big wood based panel equipments manufacture commercial cities once still produce artificial board of straw special equipment as a trial, but in practice also by
Different degrees of difficulty；Mainly some technical barriers of raw material preparation, glue system, mat conveyor system and dismoulding system
It is not solved.The reason for external straw-based panel development stagnation：It is industrial design in terms of technical standpoint
It is simple and idealization, be then that the costliness of cost makes it can not be competed with wood-base fibre and particle panel material from a business perspective.
China proceeds by the developmental research of artificial board of straw from 1970s, and initial research focuses on UF (ureas
Urea formaldehyde) adhesive modification, the performance of sheet material is reached the requirement of concerned countries standard, but do not obtain ideal effect.Into 90
In the age, as external MDI is produced, artificial board of straw is successful, and the country also begins to large-scale research and development, research direction master
Concentrate in terms of rice wheat medium-density plate, wheat straw fibre board, cement/Properties of Wheat-straw Particleboard, straw plastic composite plate.Wherein with letter
Fire-retardant stalk board, the particieboard of positive beautiful very good stalk new material Science and Technology Ltd. research and development are more representative, such as Application No.
201510638031.4 Chinese patent disclose a kind of fire-resistant-chipboard, including：7-9 parts of stalk particle, fire retardant 0.5-1.5
Part, 0.3-1.0 parts of adhesive, the fire-resistant-chipboard passes through combustion test, can reach B1 grades, fire resistance is preferable.
In general, domestic artificial board of straw production is still in the primary stage, and industrialization process is still very difficult.Its reason
Essentially consist in：(1) using MDI as adhesive, the production cost such as equipment, management, technology for thus bringing is too high and organization of production
The problem of scale, (note, production scale was excessive, is unfavorable for raw material and stores up, too small, no economic benefit.)；(2) agricultural crop straw is received
The problem of collection, storage and sorting；(3) can product variety the problem of performance, function, price be compared with wooden wood-based plate；(4)
Production scale can adapt to China rural area, agricultural, the production model of peasant and farming custom etc. change, can accomplish it is low input,
The problem of high production；(5) can industrial policy adapt to the problem of government, enterprise, peasant three's harmony of interests unify.To sum up institute
State, analyzed from simple technical standpoint, the Key technique problem of agricultural crop straw wood-based plate is glued first both at home and abroad at present
Problem, due to the application of MDI resins, makes the technology of modern artificial board of straw have the development of stage, even if in this way, with wood
Material wood-based plate is compared, and still has sizable gap；Especially in the collection and preparation of raw material, production equipment, product cost side
Can face, be widely used and promote, and also need the development path of a suitable China's actual conditions found.
The content of the invention
It is to be the provision of a kind of system of environmental protection flame retardant stalk board it is an object of the invention to overcome the deficiencies in the prior art
Technique is made, the manufacturing process of the environmental protection flame retardant stalk board uses normal temperature cold press technique, and method is simple, it is not necessary to be heated at high temperature,
Gluing can be completed under normal temperature state, only slab is dried using microwave technology in dry link, solid combustion is not consumed
Material, factory does not have chimney, whole process environmental protection；In addition, the present invention is equipped with the nothing of excellent performance using stalk as primary raw material
Machine fire retardant and inorganic binder, the stalk board obtained more than 1200 DEG C at a high temperature of it is fire-retardant be not carbonized, it is indeformable, without having
Harmful smoke and gas body is produced, and high temperature not heat conduction, chance water do not expand, and combination property is very excellent.
To achieve the above object, technical scheme used in the present invention is：
A kind of manufacturing process of environmental protection flame retardant stalk board, comprises the following steps：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between 7-12%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively according to 50~100 parts of table, sandwich layer stalk particle, 10~200 parts of fire retardant, binding agent 1
~50 parts weigh raw material, are then respectively placed in stalk particle, fire retardant and binding agent not according to the difference of table, sandwich layer stalk
Table, sandwich layer compound are formed with being stirred in container；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 40-60 time, formation
Every mixing bed of material of mating formation, is then sent in mould by the 40-60 mixing bed of materials of mating formation together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 60-95 degrees Celsius of humidity, to be applied to the compound on backing plate
Plus 1.5 × 105-1.0×106The pressure of newton, forms the prefabricated slab of the stalk fibre after precompressed certain time；
(5) sizing cold pressing：At normal temperatures, the 40-60 prefabricated slabs of stalk fibre are put into lock together with the backing plate
In mold mechanism, and apply 1 × 107-1.5×107The pressure of newton, constant pressure for a period of time, forms the stalk fibre of certain altitude
Base；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.1 × 10 are applied to it7-1.4×107The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 15-35s, environmental protection is obtained
Fire-retardant stalk boards half-finished product；
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation；
Wherein, the raw material composition of fire retardant described in the step (2) includes magnesia, magnesium chloride, magnesium sulfate, nano oxygen
Change antimony and ultra-fine SILICA FUME, the binding agent is inorganic binder, and its raw material composition includes Alumina gel, waterglass, polyvinyl alcohol
And deionized water.
Wherein, the stalk is selected from Wheat Straw, rice straw, maize straw, cotton stalk, peanut shell, bamboo branch leaf, oil
At least one of dish stalk.
It is preferred that, in terms of percentage composition, the content of the fire retardant raw material composition is respectively magnesia 20~35%, chlorination
Magnesium 10~20%, magnesium sulfate 5~15%, nanometer antimony oxide 5~20% and ultra-fine SILICA FUME 5~20%；The inorganic binder
Raw material composition content be respectively Alumina gel 1~5%, waterglass 5~10%, polyvinyl alcohol 5~20% and deionized water 70~
95%.
The raw material composition of the fire retardant also includes 0.1~2% citric acid, 0.5~3% sodium phosphate, 0.5~2% boric acid.
The magnesia is formed by magnesite or dolomite calcination, and the calcining is light-burned, and its calcining heat is 550-750
℃。
Squeeze time is 5-15s in the step (4), and constant voltage time is 5-30min in step (5).
The thickness of the stalk fibre sizing slab formed in the step (6) is 5-30mm.
The infrared band that the infrared cyclic drying case is set is 1-3 micron.
In the present invention, the binding agent is primarily used to adhere to straw particle, makes continuous uniform structure；
The binding agent of the present invention is different from the organic binder bond of conventional commercial Application, is the inorganic binder of independent research, and this is inorganic viscous
The composition for tying agent can be Alumina gel, waterglass, polyvinyl alcohol and deionized water；Wherein Alumina gel, waterglass, polyvinyl alcohol and
In the technical scheme of deionized water, polyvinyl alcohol is a kind of colourless, nontoxic, non-corrosiveness, biodegradable green binding agent,
When its aqueous solution is contacted with stalk particle, tool can be formed by the close contact and intermolecular suction-operated of PVA molecules
There is the continuous film of certain mechanical performance, so that stalk particle uniformly be adhered to each other；But, due to the length of PVA carbochains
And the size of alcoholysis degree directly affects the physical and mechanical properties of film so that can not be complete when polyvinyl alcohol is separately as binding agent
Manufacture the stalk board of high-quality, and the present invention is by adding a certain proportion of Alumina gel and waterglass, on the one hand by by Alumina gel
Being distributed in polyvinyl alcohol increases polyvinyl alcohol bonding stability and mechanical performance at high temperature, and another aspect Alumina gel can be with
Sial synthetic is combined into the silicon in waterglass, into spaced point shape work network structure, hence it is evident that improve polyvinyl alcohol adhesive
Resistance to elevated temperatures and adhering and filming performance energy, and due to the presence of waterglass, the resistance to of stalk board is also enhanced to a certain extent
Corrosive nature.
The fire retardant main function be prevent straw particle flammability, its raw material composition include magnesia,
Magnesium chloride, magnesium sulfate, antimony oxide and ultra-fine SILICA FUME.In above-mentioned flame retardant compositions, magnesia, magnesium chloride, magnesium sulfate are three
Plant basic ingredient；Magnesia is formed by magnesite or dolomite calcination, and the calcining is light-burned, and its calcining heat is 550-750
DEG C, light calcined magnesia fusing point is more than 2800 DEG C, with preferable fire retardant anticorrosion effect, and magnesium chloride uses industrial magnesium chloride hexahydrate,
With fire resistant flame retardant function, itself and oxidation reactive magnesium generate 5Mg (OH)2·MgCl2·8H2O phases, produce intensity, have sheet material
Excellent low temperature resistivity energy and fire protecting performance；And magnesium sulfate is industrial MgSO4·7H2O, fineness, can be with oxygen in 70-80 mesh
Change reactive magnesium and produce intensity, improve the water-resistance and moisture resistance of sheet material；But only using magnesia, magnesium chloride, magnesium sulfate as three
Kind sufficiently as fire retardant, it can not reach the effect of resistance to lasting high temperature, the invention by add antimony oxide and
Ultra-fine SILICA FUME improves the performance of fire retardant；Wherein, nanometer antimony oxide and ultra-fine SILICA FUME meet be added into basis it is fire-retardant into
In point, the every aspect of stalk particle is penetrated into scattered state, the fire-retardant fireproof of stalk board can be not only effectively improved
Can, the impact strength and toughness of material can also be improved, and have suppression cigarette effect concurrently.
Beneficial effects of the present invention：(1) production technology of the invention is not required to using the compressing technology of normal temperature cold pressing solidification
High temperature hot pressing is wanted, gluing can be completed under normal temperature state, only slab is dried using microwave technology in dry link, no
Consume solid fuel, no waste discharge, whole process environmental protection.
(2) the high defect of content of formaldehyde is brought using organic urea-formaldehyde glue instant invention overcomes conventional fire-retardant stalk board, with nothing
Machine glue is adhesive, prepared stalk board content of formaldehyde as little as 0.03-0.05mg/L, far below international standard requirement
0.5mg/L, environmental-protecting performance is very good, and a new approach is provided for industrialization large-scale application；
(3) fire-retardant stalk board fire resistance produced by the present invention is very excellent, supervises and examines by National Fire building material quality
Spot detection is tested, according to standard GB/T 8624-2012《Construction material and product burns grading performance》、GB/T 20285-
2006《Material producing smoke toxicity risk is classified》, assay shows that product material combustibility of the present invention meets A1 grades of regulation
It is required that, i.e., combustibility reach it is non-ignitable A1 grades, flue gas toxity meet safe one-level regulation requirement, i.e., flue gas toxity reaches safety
One-level AQ1；
(4) the fire-retardant stalk board manufactured by the present invention has very excellent resistance to boiling water boiling performance, according to GB/T4897-
2003 to measure after 5 hours boiling water boilings internal bond strength numerical value be 1.05-1.12MPa, measures 24 hours thickness swelling rates only
For 1.6%；
(5) the fire-retardant stalk board manufactured by the present invention, is measured according to method as defined in GB/T 17657-2013, hinders
The density for firing stalk board is more than 1000Kg/m3, the MOR under panel normal condition is more than or equal to 25 MPas/millimeter, elasticity
Modulus is more than or equal to 2400 MPas/millimeter, and moisture content is 7~12%.
Embodiment
Below by specific embodiment, technical scheme is described in further detail,
Embodiment 1
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 40Kg, fire retardant 15Kg, binding agent
10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate
2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphates, 0.3Kg boric acid；It is described
The content of inorganic binder raw material composition is respectively Alumina gel 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water
8.4Kg。
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binding agent 10Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 50 times, formation 50
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 75 degrees Celsius of humidity, to apply to the compound on backing plate
3.5×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 10s；
(5) sizing cold pressing：At normal temperatures, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.2 × 107The pressure of newton, constant pressure 15min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 25s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 1.09MPa after determining after water is boiled, and intensity is 1.20MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
1.4MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 2.6MJ in 19W/s, 600s, and flame is horizontal
To length is spread less than sample edge, flue gas generating rate index is about 0.7m2/s2, total smoke-producing amount is about 34m in 600s2, reach
To A1 grades of standards.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
1030Kg/m3, the MOR under panel normal condition is about 32 MPas/millimeter, and modulus of elasticity is about 2460 MPas/millimeter,
Moisture content is 8.0%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.04mg/L.
Embodiment 2
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 30Kg, fire retardant 12Kg, binding agent
8Kg；Wherein, the content of fire retardant raw material composition is respectively magnesia 3.6Kg, magnesium chloride 2.4Kg, magnesium sulfate 1.2Kg, received
Rice antimony oxide 2.4Kg, ultra-fine SILICA FUME 1.8Kg, 0.12Kg citric acid, 0.24Kg sodium phosphates, 0.24Kg boric acid；It is described inorganic viscous
The content for tying agent raw material composition is respectively Alumina gel 0.4Kg, waterglass 0.4Kg, polyvinyl alcohol 0.8Kg and deionized water 6.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 30Kg, fire retardant 12Kg, binding agent 8Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 60 times, formation 60
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 80 degrees Celsius of humidity, 5 are applied to the compound on backing plate
×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 12s；
(5) sizing cold pressing：At normal temperatures, 60 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.1 × 107The pressure of newton, constant pressure 18min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 20s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 1.10MPa after determining after water is boiled, and intensity is 1.23MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
1.6MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 2.4MJ in 17W/s, 600s, and flame is horizontal
To length is spread less than sample edge, flue gas generating rate index is about 0.6m2/s2, total smoke-producing amount is about 34m in 600s2, reach
To A1 grades of standards.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
1100Kg/m3, the MOR under panel normal condition is about 32 MPas/millimeter, and modulus of elasticity is about 2520 MPas/millimeter,
Moisture content is 9.0%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.05mg/L.
Comparative example 1
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 40Kg, fire retardant 15Kg, binding agent
10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate
2.25Kg, ultra-fine SILICA FUME 5.25Kg, 0.15Kg citric acid, 0.3Kg sodium phosphates, 0.3Kg boric acid；The inorganic binder raw material
The content of composition is respectively Alumina gel 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binding agent 10Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 50 times, formation 50
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 75 degrees Celsius of humidity, to apply to the compound on backing plate
3.5×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 10s；
(5) sizing cold pressing：At normal temperatures, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.2 × 107The pressure of newton, constant pressure 15min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 25s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 0.72MPa after determining after water is boiled, and intensity is 0.92MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
2.8MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 5.3MJ in 61W/s, 600s, and flame is horizontal
To length is spread less than the long wing edge of sample, flue gas generating rate index is about 2.7m2/s2, total smoke-producing amount is about in 600s
72m2, not up to A1 grades of standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
1010Kg/m3, the MOR under panel normal condition is about 17 MPas/millimeter, and modulus of elasticity is about 2000 MPas/millimeter,
Moisture content is 8.5%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.05mg/L.
Comparative example 2
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 40Kg, fire retardant 15Kg, binding agent
10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate
2.25Kg, nanometer antimony oxide 5.25Kg, 0.15Kg citric acid, 0.3Kg sodium phosphates, 0.3Kg boric acid；The inorganic binder raw material
The content of composition is respectively Alumina gel 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binding agent 10Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 50 times, formation 50
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 75 degrees Celsius of humidity, to apply to the compound on backing plate
3.5×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 10s；
(5) sizing cold pressing：At normal temperatures, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.2 × 107The pressure of newton, constant pressure 15min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 25s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 0.62MPa after determining after water is boiled, and intensity is 0.94MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
2.9MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 5.1MJ in 65W/s, 600s, and flame is horizontal
To length is spread less than sample edge, flue gas generating rate index is about 2.6m2/s2, total smoke-producing amount is about 73m in 600s2, not
Reach A1 grades of standards.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
1020Kg/m3, the MOR under panel normal condition is about 23 MPas/millimeter, and modulus of elasticity is about 2190 MPas/millimeter,
Moisture content is 8.7%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.04mg/L.
Comparative example 3
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 40Kg, fire retardant 15Kg, binding agent
10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate
2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphates, 0.3Kg boric acid；It is described
The content of inorganic binder raw material composition is respectively waterglass 0.8Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binding agent 10Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 50 times, formation 50
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 75 degrees Celsius of humidity, to apply to the compound on backing plate
3.5×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 10s；
(5) sizing cold pressing：At normal temperatures, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.2 × 107The pressure of newton, constant pressure 15min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 25s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 0.58MPa after determining after water is boiled, and intensity is 0.85MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
2.4MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 4.3MJ in 37W/s, 600s, and flame is horizontal
To length is spread less than sample edge, flue gas generating rate index is about 1.9m2/s2, total smoke-producing amount is about 50m in 600s2, not
Reach A1 grades of standards.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
990Kg/m3, the MOR under panel normal condition is about 27 MPas/millimeter, and modulus of elasticity is about 2400 MPas/millimeter, is contained
Water rate is 8.3%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.05mg/L.
Comparative example 4
The raw material of manufacture the present embodiment environmental protection flame retardant stalk board, which is constituted, is：Stalk particle 40Kg, fire retardant 15Kg, binding agent
10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate
2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphates, 0.3Kg boric acid；It is described
The content of inorganic binder raw material composition is respectively Alumina gel 0.8Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board is：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and
The stalk cleaned out is subjected to natural drying drying, the moisture content of stalk is controlled between about 10%；Then stalk is distinguished
It is input in table, sandwich layer pulverizer and is crushed, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binding agent 10Kg
Material, then stirs equal according to different stalk particle, fire retardant and binding agent are placed in different vessels of table, sandwich layer stalk respectively
Even formation table, sandwich layer compound；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, according to top layer mat formation top layer mix
Material is closed, sandwich layer is mated formation sandwich layer compound, spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 50 times, formation 50
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 75 degrees Celsius of humidity, to apply to the compound on backing plate
3.5×105The prefabricated slab of the stalk fibre is formed after the pressure of newton, precompressed 10s；
(5) sizing cold pressing：At normal temperatures, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1.2 × 107The pressure of newton, constant pressure 15min forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold together with the backing plate, and
1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and it is fine to take out from the backing plate stalk
Dimension sizing slab；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 25s, environmentally friendly resistance is obtained
Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, phase is obtained
Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection is obtained
Fire-retardant stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packed
And be put in storage preservation.
Performance measurement：(1) water boils experiment：Take the stalk board of manufacture to be placed in 100 DEG C of boiling water reclaimed waters and boil 5h, it is then dry in 60 DEG C
Dry, internal bond strength numerical value is 0.61MPa after determining after water is boiled, and intensity is 0.91MPa before water is boiled；
(2) combustion experiment is carried out according to method as defined in GB8624-2012, experimental result is：Gross calorific value PCS is about
2.8MJ/Kg, fire growth rate index FIGR0.2MJ are about heat always release about 4.5MJ in 46W/s, 600s, and flame is horizontal
To length is spread less than sample edge, flue gas generating rate index is about 2.2m2/s2, total smoke-producing amount is about 56m in 600s2, not
Reach A1 grades of standards.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about
970Kg/m3, the MOR under panel normal condition is about 27 MPas/millimeter, and modulus of elasticity is about 2440 MPas/millimeter, is contained
Water rate is 9.0%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about
For 0.04mg/L.
The present invention, but do not limit the invention in any way.Therefore, it will be appreciated by those skilled in the art that still can be with
The present invention is modified or equivalent substitution；And all do not depart from the present invention spirit and technical spirits technical scheme and its
Improve, it all should cover among the protection domain of patent of the present invention.
Claims (8)
1. a kind of manufacturing process of environmental protection flame retardant stalk board, it is characterised in that comprise the following steps：
(1) agricultural crop straw removal of impurities is crushed：Special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and will be clear
The clean stalk of reason carries out natural drying drying, controls the moisture content of stalk between 7-12%；Then stalk is inputted respectively
Crushed into table, sandwich layer pulverizer, top layer pulverizer is crushed to 3-5mm, sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging：Respectively according to 50~100 parts of table, sandwich layer stalk particle, 10~200 parts of fire retardant, binding agent 1~50
Part raw material is weighed, stalk particle, fire retardant and binding agent be then placed in different appearances according to the difference of table, sandwich layer stalk respectively
Stir to form table, sandwich layer compound in device；
(3) mat formation into mould：The table, sandwich layer compound are respectively delivered in spreading machine, mated formation top layer compound according to top layer,
Sandwich layer is mated formation sandwich layer compound, and spreading machine uniformly mats formation table, sandwich layer compound point onto backing plate for 40-60 time, and formation 40-60 opens
Mat formation the mixing bed of material, be then sent to every mixing bed of material of mating formation in mould together with backing plate；
(4) pre-molding：In normal temperature and dew-point temperature under 60-95 degrees Celsius of humidity, 1.5 are applied to the compound on backing plate
×105-1.0×106The pressure of newton, forms the prefabricated slab of the stalk fibre after precompressed certain time；
(5) sizing cold pressing：At normal temperatures, the 40-60 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate
In structure, and apply 1 × 107-1.5×107The pressure of newton, constant pressure for a period of time, forms the stalk fibre base of certain altitude；
(6) locked mode：The stalk fibre base that above-mentioned sizing cold pressing step is obtained is locked in a mold, and to it together with the backing plate
Apply 1.1 × 107-1.4×107The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) the maintenance demoulding：Unlock stalk fibre sizing slab, and take out the stalk fibre from the backing plate and determine
Template base；
(8) dry：Above-mentioned stalk fibre sizing slab is put into infrared cyclic drying case and dries 15-35s, environmental protection flame retardant is obtained
Stalk boards half-finished product；
(9) semi-finished product saw side：Cutting edge processing is carried out to above-mentioned homogeneous straw core boards half-finished product according to actual demand, it is accordingly long
The environmental protection flame retardant stalk boards half-finished product of degree and width；
(10) sanding：Environmental protection flame retardant stalk boards half-finished product behind above-mentioned saw side is polished using sander, the environmental protection flame retardant is obtained
Stalk board finished product；
(11) packaging and storage：Quality examination is carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product packing is incorporated to
Storehouse is preserved；
Wherein, the raw material composition of fire retardant described in the step (2) includes magnesia, magnesium chloride, magnesium sulfate, nanometer antimony oxide
With ultra-fine SILICA FUME, the binding agent is inorganic binder, and its raw material composition includes Alumina gel, waterglass, polyvinyl alcohol and gone
Ionized water.
2. the manufacturing process of environmental protection flame retardant stalk board according to claim 1, it is characterised in that the stalk is selected from wheat straw
At least one of stalk, rice straw, maize straw, cotton stalk, peanut shell, bamboo branch leaf, rape stalk.
3. according to the manufacturing process of any one of the claim 1-2 environmental protection flame retardant stalk boards, it is characterised in that with percentage composition
Meter, the content of fire retardant raw material composition be respectively magnesia 20~35%, magnesium chloride 10~20%, magnesium sulfate 5~15%,
Nanometer antimony oxide 5~20% and ultra-fine SILICA FUME 5~20%；The content of the inorganic binder raw material composition is respectively Alumina gel
1~5%, waterglass 5~10%, polyvinyl alcohol 5~20% and deionized water 70~95%.
4. the manufacturing process of environmental protection flame retardant stalk board according to claim 3, it is characterised in that the raw material group of the fire retardant
Into also including 0.1~2% citric acid, 0.5~3% sodium phosphate, 0.5~2% boric acid.
5. the manufacturing process of environmental protection flame retardant stalk board according to claim 4, it is characterised in that the magnesia is by magnesite
Or dolomite calcination is formed, the calcining is light-burned, and its calcining heat is 550-750 DEG C.
6. according to the manufacturing process of any one of the claim 1-5 environmental protection flame retardant stalk boards, it is characterised in that the step
(4) squeeze time is 5-15s in, and constant voltage time is 5-30min in step (5).
7. environmental protection flame retardant stalk board manufacturing process according to claim 6, it is characterised in that formed in the step (6)
Stalk fibre sizing slab thickness be 5-30mm.
8. environmental protection flame retardant stalk board manufacturing process according to claim 7, it is characterised in that the infrared cyclic drying case
The infrared band set is 1-3 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450729.2A CN107127841B (en) | 2017-06-15 | 2017-06-15 | Manufacturing process of environment-friendly flame-retardant straw board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450729.2A CN107127841B (en) | 2017-06-15 | 2017-06-15 | Manufacturing process of environment-friendly flame-retardant straw board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107127841A true CN107127841A (en) | 2017-09-05 |
| CN107127841B CN107127841B (en) | 2020-04-10 |
Family
ID=59733940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450729.2A Active CN107127841B (en) | 2017-06-15 | 2017-06-15 | Manufacturing process of environment-friendly flame-retardant straw board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107127841B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582394A (en) * | 2018-05-17 | 2018-09-28 | 李建州 | A kind of agricultural crop straw environmental protection flame retardant glue free particle board and preparation method thereof |
| CN108608550A (en) * | 2018-05-03 | 2018-10-02 | 李建州 | A kind of agricultural crop straw anti-corrosive antibacterial flame retardant fibre board and preparation method thereof |
| CN108705646A (en) * | 2018-05-02 | 2018-10-26 | 信阳美丽真好秸秆新材科技有限公司 | Rice and kernel straw fire-retardation artificial board and preparation method thereof |
| CN110094029A (en) * | 2018-01-30 | 2019-08-06 | 上海派沃建筑装饰设计工程有限公司 | Decoration panel used in a kind of decorations and preparation method thereof |
| CN110698168A (en) * | 2019-11-19 | 2020-01-17 | 南京林业大学 | Inorganic gelled biomass functional decorative plate and preparation method thereof |
| CN111015888A (en) * | 2019-12-13 | 2020-04-17 | 宣城市祥正生态农业发展有限公司 | Comprehensive straw utilization device |
| CN111015886A (en) * | 2019-11-28 | 2020-04-17 | 东营市盛基环保工程有限公司 | Production process of uniform-density straw artificial board |
| KR102188403B1 (en) * | 2020-08-04 | 2020-12-09 | 정병재 | Method for eco friendly flame-retardant particle board and eco friendly flame-retardant particle board manufactured therefrom |
| CN113061013A (en) * | 2021-03-19 | 2021-07-02 | 禾鹏(河北)新材料科技有限公司 | Flame-retardant formaldehyde-free rock-planting plate and production method thereof |
| CN113306237A (en) * | 2021-05-26 | 2021-08-27 | 邓州市新艺木业有限责任公司 | Flame-retardant polymer composite board and preparation method thereof |
| CN113563729A (en) * | 2021-08-05 | 2021-10-29 | 优优新材料股份有限公司 | Waterproof flame-retardant formaldehyde-free veneer with solid wood grain paint veneer and application thereof |
| US11623991B1 (en) * | 2021-09-30 | 2023-04-11 | Fei Xu | Flame-retardant waterproof formaldehyde-free board and method of manufacture |
| WO2023102394A3 (en) * | 2021-11-30 | 2023-08-31 | Sierracrete Llc | Composite cellulosic probucts and processes for making the same. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508190A (en) * | 2002-12-16 | 2004-06-30 | 吴荣泰 | Flame-retarding resin composition |
| CN104608230A (en) * | 2015-01-12 | 2015-05-13 | 信阳美丽真好秸秆新材科技有限公司 | Non-wood fiber flame retardant artificial board and manufacturing method thereof |
| CN105345911A (en) * | 2015-09-30 | 2016-02-24 | 信阳美丽真好秸秆新材科技有限公司 | Flame-retardant straw shaving board and manufacturing method thereof |
-
2017
- 2017-06-15 CN CN201710450729.2A patent/CN107127841B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508190A (en) * | 2002-12-16 | 2004-06-30 | 吴荣泰 | Flame-retarding resin composition |
| CN104608230A (en) * | 2015-01-12 | 2015-05-13 | 信阳美丽真好秸秆新材科技有限公司 | Non-wood fiber flame retardant artificial board and manufacturing method thereof |
| CN105345911A (en) * | 2015-09-30 | 2016-02-24 | 信阳美丽真好秸秆新材科技有限公司 | Flame-retardant straw shaving board and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国公安部消防局: "《中国消防手册 第十二卷 消防装备 消防产品》", 31 December 2007, 上海科学技术出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094029A (en) * | 2018-01-30 | 2019-08-06 | 上海派沃建筑装饰设计工程有限公司 | Decoration panel used in a kind of decorations and preparation method thereof |
| CN108705646A (en) * | 2018-05-02 | 2018-10-26 | 信阳美丽真好秸秆新材科技有限公司 | Rice and kernel straw fire-retardation artificial board and preparation method thereof |
| CN108608550A (en) * | 2018-05-03 | 2018-10-02 | 李建州 | A kind of agricultural crop straw anti-corrosive antibacterial flame retardant fibre board and preparation method thereof |
| CN108582394A (en) * | 2018-05-17 | 2018-09-28 | 李建州 | A kind of agricultural crop straw environmental protection flame retardant glue free particle board and preparation method thereof |
| CN110698168A (en) * | 2019-11-19 | 2020-01-17 | 南京林业大学 | Inorganic gelled biomass functional decorative plate and preparation method thereof |
| CN111015886A (en) * | 2019-11-28 | 2020-04-17 | 东营市盛基环保工程有限公司 | Production process of uniform-density straw artificial board |
| CN111015888A (en) * | 2019-12-13 | 2020-04-17 | 宣城市祥正生态农业发展有限公司 | Comprehensive straw utilization device |
| KR102188403B1 (en) * | 2020-08-04 | 2020-12-09 | 정병재 | Method for eco friendly flame-retardant particle board and eco friendly flame-retardant particle board manufactured therefrom |
| CN113061013A (en) * | 2021-03-19 | 2021-07-02 | 禾鹏(河北)新材料科技有限公司 | Flame-retardant formaldehyde-free rock-planting plate and production method thereof |
| CN113306237A (en) * | 2021-05-26 | 2021-08-27 | 邓州市新艺木业有限责任公司 | Flame-retardant polymer composite board and preparation method thereof |
| CN113563729A (en) * | 2021-08-05 | 2021-10-29 | 优优新材料股份有限公司 | Waterproof flame-retardant formaldehyde-free veneer with solid wood grain paint veneer and application thereof |
| CN113563729B (en) * | 2021-08-05 | 2023-02-24 | 优优新材料股份有限公司 | Waterproof flame-retardant formaldehyde-free veneer with solid wood grain paint veneer and application thereof |
| US11623991B1 (en) * | 2021-09-30 | 2023-04-11 | Fei Xu | Flame-retardant waterproof formaldehyde-free board and method of manufacture |
| WO2023102394A3 (en) * | 2021-11-30 | 2023-08-31 | Sierracrete Llc | Composite cellulosic probucts and processes for making the same. |
| US11926569B2 (en) | 2021-11-30 | 2024-03-12 | Sierracrete Llc | Composite cellulosic products and processes for making and using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107127841B (en) | 2020-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107127841A (en) | A kind of manufacturing process of environmental protection flame retardant stalk board | |
| CN107216814A (en) | A kind of inorganic adhesive of environmental protection flame retardant and preparation method thereof | |
| CN107117927B (en) | A kind of environmental protection flame retardant stalk board | |
| Kozlowski et al. | Flame resistant lignocellulosic-mineral composite particleboards | |
| CN105269642B (en) | Fire-retardant stalk lumber core and its manufacture method | |
| CN104552488A (en) | Flame retardant composite board and manufacture method thereof | |
| CN104563425B (en) | Integration board for decorating, preventing fire and keeping warm | |
| CN102826817A (en) | Fly-ash fiber outer wall heat-insulation board and preparation method thereof | |
| TW201800540A (en) | Preparation method for carbonized plywood special glue and carbonized plywood ensures moisture-proof, anti-mold, anti-corrosion, structural stability, formaldehyde-free, warm in winter and cool in summer, anti-moth, and water-resistant | |
| CN106317931A (en) | Biomass flame-retardant thermal-insulating panel and preparing method thereof | |
| CN107322749A (en) | A kind of environment-friendly flame-retarding fiberboard and preparation method thereof | |
| CN104608230A (en) | Non-wood fiber flame retardant artificial board and manufacturing method thereof | |
| CN105884315B (en) | A kind of high strength flooring and its application | |
| CN105382911A (en) | Manufacturing method for crop straw building external wall heat insulation plate | |
| CN104772796A (en) | Flame-retardant straw artificial composite board and manufacturing method thereof | |
| CN102423940B (en) | Non-combustible compact plate and preparation method thereof | |
| CN101775882A (en) | Environment protective and flame retardant decorative material and preparation process thereof | |
| CN107130894B (en) | It is stitched in a kind of fire resistant doorsets with fire-retardant straw fireproof plate | |
| CN104786340A (en) | Flame-retarded-straw artificial board and manufacturing method thereof | |
| CN109228554A (en) | A kind of high density fiberboard that fire resistance is strong | |
| US7687410B2 (en) | Inorganic wood-like material | |
| CN104234374A (en) | Antistatic geothermal floor | |
| CN111285659A (en) | Fireproof composite board substrate, preparation method of fireproof composite board substrate and fireproof composite board | |
| CN201891362U (en) | Indoor fire-prevention door and door pocket | |
| CN107035285B (en) | A kind of fireproof door frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |